bd: backup 2026-03-04 17:07

.beads/.gitignore

@@ -0,0 +1,49 @@
+# Dolt database (managed by Dolt, not git)
+dolt/
+dolt-access.lock
+
+# Runtime files
+bd.sock
+bd.sock.startlock
+sync-state.json
+last-touched
+
+# Local version tracking (prevents upgrade notification spam after git ops)
+.local_version
+
+# Worktree redirect file (contains relative path to main repo's .beads/)
+# Must not be committed as paths would be wrong in other clones
+redirect
+
+# Sync state (local-only, per-machine)
+# These files are machine-specific and should not be shared across clones
+.sync.lock
+export-state/
+
+# Ephemeral store (SQLite - wisps/molecules, intentionally not versioned)
+ephemeral.sqlite3
+ephemeral.sqlite3-journal
+ephemeral.sqlite3-wal
+ephemeral.sqlite3-shm
+
+# Dolt server management (auto-started by bd)
+dolt-server.pid
+dolt-server.log
+dolt-server.lock
+
+# Legacy files (from pre-Dolt versions)
+*.db
+*.db?*
+*.db-journal
+*.db-wal
+*.db-shm
+db.sqlite
+bd.db
+daemon.lock
+daemon.log
+daemon-*.log.gz
+daemon.pid
+# NOTE: Do NOT add negation patterns here.
+# They would override fork protection in .git/info/exclude.
+# Config files (metadata.json, config.yaml) are tracked by git by default
+# since no pattern above ignores them.

.beads/README.md

@@ -0,0 +1,81 @@
+# Beads - AI-Native Issue Tracking
+
+Welcome to Beads! This repository uses **Beads** for issue tracking - a modern, AI-native tool designed to live directly in your codebase alongside your code.
+
+## What is Beads?
+
+Beads is issue tracking that lives in your repo, making it perfect for AI coding agents and developers who want their issues close to their code. No web UI required - everything works through the CLI and integrates seamlessly with git.
+
+**Learn more:** [github.com/steveyegge/beads](https://github.com/steveyegge/beads)
+
+## Quick Start
+
+### Essential Commands
+
+```bash
+# Create new issues
+bd create "Add user authentication"
+
+# View all issues
+bd list
+
+# View issue details
+bd show <issue-id>
+
+# Update issue status
+bd update <issue-id> --claim
+bd update <issue-id> --status done
+
+# Sync with Dolt remote
+bd dolt push
+```
+
+### Working with Issues
+
+Issues in Beads are:
+- **Git-native**: Stored in `.beads/issues.jsonl` and synced like code
+- **AI-friendly**: CLI-first design works perfectly with AI coding agents
+- **Branch-aware**: Issues can follow your branch workflow
+- **Always in sync**: Auto-syncs with your commits
+
+## Why Beads?
+
+✨ **AI-Native Design**
+- Built specifically for AI-assisted development workflows
+- CLI-first interface works seamlessly with AI coding agents
+- No context switching to web UIs
+
+🚀 **Developer Focused**
+- Issues live in your repo, right next to your code
+- Works offline, syncs when you push
+- Fast, lightweight, and stays out of your way
+
+🔧 **Git Integration**
+- Automatic sync with git commits
+- Branch-aware issue tracking
+- Intelligent JSONL merge resolution
+
+## Get Started with Beads
+
+Try Beads in your own projects:
+
+```bash
+# Install Beads
+curl -sSL https://raw.githubusercontent.com/steveyegge/beads/main/scripts/install.sh | bash
+
+# Initialize in your repo
+bd init
+
+# Create your first issue
+bd create "Try out Beads"
+```
+
+## Learn More
+
+- **Documentation**: [github.com/steveyegge/beads/docs](https://github.com/steveyegge/beads/tree/main/docs)
+- **Quick Start Guide**: Run `bd quickstart`
+- **Examples**: [github.com/steveyegge/beads/examples](https://github.com/steveyegge/beads/tree/main/examples)
+
+---
+
+*Beads: Issue tracking that moves at the speed of thought* ⚡

.beads/backup/backup_state.json

@@ -0,0 +1,13 @@
+{
+  "last_dolt_commit": "mf3is3p9ve79on2q1achdjp8v50rq6s3",
+  "last_event_id": 0,
+  "timestamp": "2026-03-04T17:07:18.317614374Z",
+  "counts": {
+    "issues": 10,
+    "events": 24,
+    "comments": 0,
+    "dependencies": 21,
+    "labels": 0,
+    "config": 11
+  }
+}

.beads/backup/config.jsonl

@@ -0,0 +1,11 @@
+{"key":"auto_compact_enabled","value":"false"}
+{"key":"compact_batch_size","value":"50"}
+{"key":"compact_parallel_workers","value":"5"}
+{"key":"compact_tier1_days","value":"30"}
+{"key":"compact_tier1_dep_levels","value":"2"}
+{"key":"compact_tier2_commits","value":"100"}
+{"key":"compact_tier2_days","value":"90"}
+{"key":"compact_tier2_dep_levels","value":"5"}
+{"key":"compaction_enabled","value":"false"}
+{"key":"issue_prefix","value":"abawo_bt_app"}
+{"key":"schema_version","value":"6"}

.beads/backup/dependencies.jsonl

@@ -0,0 +1,21 @@
+{"created_at":"2026-03-03T16:38:33Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q","issue_id":"abawo_bt_app-20q.1","type":"parent-child"}
+{"created_at":"2026-03-03T16:39:10Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q","issue_id":"abawo_bt_app-20q.2","type":"parent-child"}
+{"created_at":"2026-03-03T16:39:47Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q.1","issue_id":"abawo_bt_app-20q.2","type":"blocks"}
+{"created_at":"2026-03-03T16:39:10Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q","issue_id":"abawo_bt_app-20q.3","type":"parent-child"}
+{"created_at":"2026-03-03T16:39:47Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q.4","issue_id":"abawo_bt_app-20q.3","type":"blocks"}
+{"created_at":"2026-03-03T16:39:47Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q.7","issue_id":"abawo_bt_app-20q.3","type":"blocks"}
+{"created_at":"2026-03-03T16:39:10Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q","issue_id":"abawo_bt_app-20q.4","type":"parent-child"}
+{"created_at":"2026-03-03T16:39:10Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q","issue_id":"abawo_bt_app-20q.5","type":"parent-child"}
+{"created_at":"2026-03-03T16:39:47Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q.7","issue_id":"abawo_bt_app-20q.5","type":"blocks"}
+{"created_at":"2026-03-03T16:39:10Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q","issue_id":"abawo_bt_app-20q.6","type":"parent-child"}
+{"created_at":"2026-03-03T16:39:47Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q.3","issue_id":"abawo_bt_app-20q.6","type":"blocks"}
+{"created_at":"2026-03-03T16:39:47Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q.5","issue_id":"abawo_bt_app-20q.6","type":"blocks"}
+{"created_at":"2026-03-03T16:39:47Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q.9","issue_id":"abawo_bt_app-20q.6","type":"blocks"}
+{"created_at":"2026-03-03T16:39:17Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q","issue_id":"abawo_bt_app-20q.7","type":"parent-child"}
+{"created_at":"2026-03-03T16:39:47Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q.1","issue_id":"abawo_bt_app-20q.7","type":"blocks"}
+{"created_at":"2026-03-03T16:39:47Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q.2","issue_id":"abawo_bt_app-20q.7","type":"blocks"}
+{"created_at":"2026-03-03T16:39:47Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q.8","issue_id":"abawo_bt_app-20q.7","type":"blocks"}
+{"created_at":"2026-03-03T16:39:23Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q","issue_id":"abawo_bt_app-20q.8","type":"parent-child"}
+{"created_at":"2026-03-03T16:39:47Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q.1","issue_id":"abawo_bt_app-20q.8","type":"blocks"}
+{"created_at":"2026-03-03T16:39:28Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q","issue_id":"abawo_bt_app-20q.9","type":"parent-child"}
+{"created_at":"2026-03-03T16:39:47Z","created_by":"Yandrik","depends_on_id":"abawo_bt_app-20q.7","issue_id":"abawo_bt_app-20q.9","type":"blocks"}

.beads/backup/events.jsonl

@@ -0,0 +1,24 @@
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:37:50Z","event_type":"created","id":1,"issue_id":"abawo_bt_app-20q","new_value":"","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:38:33Z","event_type":"created","id":2,"issue_id":"abawo_bt_app-20q.1","new_value":"","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:39:10Z","event_type":"created","id":3,"issue_id":"abawo_bt_app-20q.2","new_value":"","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:39:10Z","event_type":"created","id":5,"issue_id":"abawo_bt_app-20q.3","new_value":"","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:39:10Z","event_type":"created","id":7,"issue_id":"abawo_bt_app-20q.4","new_value":"","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:39:10Z","event_type":"created","id":9,"issue_id":"abawo_bt_app-20q.5","new_value":"","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:39:10Z","event_type":"created","id":10,"issue_id":"abawo_bt_app-20q.6","new_value":"","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:39:17Z","event_type":"created","id":11,"issue_id":"abawo_bt_app-20q.7","new_value":"","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:39:23Z","event_type":"created","id":12,"issue_id":"abawo_bt_app-20q.8","new_value":"","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:39:28Z","event_type":"created","id":13,"issue_id":"abawo_bt_app-20q.9","new_value":"","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:43:26Z","event_type":"claimed","id":14,"issue_id":"abawo_bt_app-20q.1","new_value":"{\"assignee\":\"Yandrik\",\"status\":\"in_progress\"}","old_value":"{\"id\":\"abawo_bt_app-20q.1\",\"title\":\"Add DFU protocol constants and domain models\",\"description\":\"Add protocol surface in app code for DFU support.\\n\\nWork:\\n- Add UUID constants for dfu_control (...40008), dfu_data (...40009), dfu_ack (...4000a)\\n- Add opcode/frame constants (START=0x01, FINISH=0x02, ABORT=0x03, frame size 64, payload size 63)\\n- Add flags constants and typed update-state/progress models used by service/UI\\n- Remove future magic numbers by centralizing constants\",\"acceptance_criteria\":\"- All protocol constants match spec exactly\\n- No duplicated literal DFU UUID/opcode values across services/UI\\n- Domain models compile and are ready for transfer engine integration\",\"status\":\"open\",\"priority\":1,\"issue_type\":\"task\",\"owner\":\"me@yandrik.dev\",\"created_at\":\"2026-03-03T15:38:34Z\",\"created_by\":\"Yandrik\",\"updated_at\":\"2026-03-03T15:38:34Z\"}"}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:45:19Z","event_type":"closed","id":15,"issue_id":"abawo_bt_app-20q.1","new_value":"Implemented DFU constants, flags, opcodes, and typed progress models in shifter_types.dart","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:45:29Z","event_type":"claimed","id":16,"issue_id":"abawo_bt_app-20q.2","new_value":"{\"assignee\":\"Yandrik\",\"status\":\"in_progress\"}","old_value":"{\"id\":\"abawo_bt_app-20q.2\",\"title\":\"Implement DFU packet codec and CRC32 utilities with tests\",\"description\":\"Implement pure protocol helpers.\\n\\nWork:\\n- Build START payload (11 bytes, LE fields)\\n- Build FINISH/ABORT payloads\\n- Build/segment DATA frames (seq + 63-byte payload)\\n- Implement ACK/sequence helpers including wrapping behavior\\n- Implement CRC32 (ISO-HDLC reflected polynomial 0xEDB88320, init/final xor FFFFFFFF)\",\"acceptance_criteria\":\"- CRC test vector passes: \\\"123456789\\\" =\\u003e 0xCBF43926\\n- START/FINISH/ABORT encoders produce exact lengths/byte layout\\n- Frame segmentation handles final partial payload correctly\\n- Seq wrap and ack+1 rewind helpers covered by tests\",\"status\":\"open\",\"priority\":1,\"issue_type\":\"task\",\"owner\":\"me@yandrik.dev\",\"created_at\":\"2026-03-03T15:39:10Z\",\"created_by\":\"Yandrik\",\"updated_at\":\"2026-03-03T15:39:10Z\"}"}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:48:57Z","event_type":"closed","id":17,"issue_id":"abawo_bt_app-20q.2","new_value":"Added DFU protocol codec/CRC utilities with unit tests for payloads, frames, and sequence helpers","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:49:06Z","event_type":"claimed","id":18,"issue_id":"abawo_bt_app-20q.8","new_value":"{\"assignee\":\"Yandrik\",\"status\":\"in_progress\"}","old_value":"{\"id\":\"abawo_bt_app-20q.8\",\"title\":\"Add BLE DFU preflight checks (MTU and connection readiness)\",\"description\":\"Add runtime guards required for protocol correctness.\\n\\nWork:\\n- Ensure active connection to target button before DFU start\\n- Request elevated MTU (e.g. 128/247) before upload\\n- Validate negotiated MTU supports 64-byte data writes (ATT payload requirement)\\n- Fail early with actionable message when transport preconditions are not met\",\"acceptance_criteria\":\"- Upload start is blocked when MTU/connection preconditions fail\\n- Error messages explain what failed and next step\\n- Preflight result is exposed for transfer start path\",\"status\":\"open\",\"priority\":1,\"issue_type\":\"task\",\"owner\":\"me@yandrik.dev\",\"created_at\":\"2026-03-03T15:39:24Z\",\"created_by\":\"Yandrik\",\"updated_at\":\"2026-03-03T15:39:24Z\"}"}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:55:10Z","event_type":"closed","id":19,"issue_id":"abawo_bt_app-20q.8","new_value":"Implemented DFU preflight checks for connection state and negotiated MTU with typed results and tests","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T16:55:19Z","event_type":"claimed","id":20,"issue_id":"abawo_bt_app-20q.7","new_value":"{\"assignee\":\"Yandrik\",\"status\":\"in_progress\"}","old_value":"{\"id\":\"abawo_bt_app-20q.7\",\"title\":\"Implement BLE DFU transfer engine with cumulative ACK retransmit\",\"description\":\"Build the runtime transfer engine used by UI.\\n\\nWork:\\n- Subscribe to dfu_ack indications before START\\n- Send START and require initial ACK 0xFF\\n- Stream dfu_data using write without response in windows (configurable, default 8)\\n- Track cumulative ACK; on stall/timeout rewind to ack+1 (wrapping aware)\\n- Handle invalid/no-progress scenarios with bounded retries\\n- Send FINISH after full acked upload\\n- Support ABORT for cancellation and terminal error cleanup\\n- Emit state/progress stream for UI\",\"acceptance_criteria\":\"- Happy path reaches done with full ACKed transfer\\n- Loss/stall path retransmits and recovers correctly\\n- Cancel triggers ABORT and returns to idle cleanly\\n- Engine surfaces explicit error reasons for UI\",\"status\":\"open\",\"priority\":1,\"issue_type\":\"feature\",\"owner\":\"me@yandrik.dev\",\"created_at\":\"2026-03-03T15:39:18Z\",\"created_by\":\"Yandrik\",\"updated_at\":\"2026-03-03T15:39:18Z\"}"}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T17:00:44Z","event_type":"closed","id":21,"issue_id":"abawo_bt_app-20q.7","new_value":"Implemented firmware transfer engine with preflight, cumulative ACK handling, retries, cancel ABORT, and unit tests","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T17:01:01Z","event_type":"claimed","id":22,"issue_id":"abawo_bt_app-20q.4","new_value":"{\"assignee\":\"Yandrik\",\"status\":\"in_progress\"}","old_value":"{\"id\":\"abawo_bt_app-20q.4\",\"title\":\"Add firmware file selection and binary validation flow\",\"description\":\"Implement local firmware artifact input for v1.\\n\\nWork:\\n- Integrate file picker for local firmware .bin\\n- Read bytes safely and validate non-empty payload\\n- Guard against malformed selections and unsupported files\\n- Compute total_len and crc32 from selected bytes\\n- Generate per-session session_id and set flags=0x00 for v1\",\"acceptance_criteria\":\"- User can select .bin and app obtains byte payload\\n- Validation errors are explicit and user-facing\\n- Metadata (size/crc/session) is available to transfer engine\",\"status\":\"open\",\"priority\":2,\"issue_type\":\"task\",\"owner\":\"me@yandrik.dev\",\"created_at\":\"2026-03-03T15:39:10Z\",\"created_by\":\"Yandrik\",\"updated_at\":\"2026-03-03T15:39:10Z\"}"}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T17:04:51Z","event_type":"closed","id":23,"issue_id":"abawo_bt_app-20q.4","new_value":"Completed","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T17:07:21Z","event_type":"claimed","id":24,"issue_id":"abawo_bt_app-20q.9","new_value":"{\"assignee\":\"Yandrik\",\"status\":\"in_progress\"}","old_value":"{\"id\":\"abawo_bt_app-20q.9\",\"title\":\"Handle post-FINISH disconnect/reboot and reconnect verification\",\"description\":\"Implement robust completion handling around expected device reset.\\n\\nWork:\\n- Treat disconnect after successful FINISH as expected behavior\\n- Reconnect with update-specific timeout strategy\\n- Verify device is reachable/readable after reconnect\\n- Surface success only after reconnect verification path\\n- Document limitation: no strict firmware version compare until firmware exposes version characteristic\",\"acceptance_criteria\":\"- Expected reset does not appear as generic failure\\n- Reconnect path is attempted and result is surfaced\\n- Completion criteria are consistent with v1 definition\",\"status\":\"open\",\"priority\":1,\"issue_type\":\"task\",\"owner\":\"me@yandrik.dev\",\"created_at\":\"2026-03-03T15:39:28Z\",\"created_by\":\"Yandrik\",\"updated_at\":\"2026-03-03T15:39:28Z\"}"}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T17:12:02Z","event_type":"closed","id":25,"issue_id":"abawo_bt_app-20q.9","new_value":"Added post-FINISH reset disconnect, reconnect, and reachability verification before marking update complete","old_value":""}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-03T17:12:17Z","event_type":"claimed","id":26,"issue_id":"abawo_bt_app-20q.3","new_value":"{\"assignee\":\"Yandrik\",\"status\":\"in_progress\"}","old_value":"{\"id\":\"abawo_bt_app-20q.3\",\"title\":\"Integrate firmware update UI into device details page\",\"description\":\"Add user-facing update controls and status presentation.\\n\\nWork:\\n- Add update card with Select Firmware, Start Update, Cancel\\n- Show phase text, progress %, bytes sent/acked, and retry status\\n- Disable conflicting actions (gear writes / connect button-to-bike) during DFU\\n- Show explicit reboot expectation after FINISH\\n- Persist/clear transient state correctly on page lifecycle changes\",\"acceptance_criteria\":\"- UI can run full update flow start-to-finish\\n- Progress/state transitions are visible and consistent\\n- Conflicting controls are disabled during active transfer\\n- Failures and cancellations are clearly shown\",\"status\":\"open\",\"priority\":1,\"issue_type\":\"feature\",\"owner\":\"me@yandrik.dev\",\"created_at\":\"2026-03-03T15:39:10Z\",\"created_by\":\"Yandrik\",\"updated_at\":\"2026-03-03T15:39:10Z\"}"}
+{"actor":"Yandrik","comment":null,"created_at":"2026-03-04T18:07:17Z","event_type":"closed","id":27,"issue_id":"abawo_bt_app-20q.3","new_value":"Integrated firmware file selection, update controls, progress display, and DFU state handling into device details page","old_value":""}

.beads/backup/issues.jsonl

@@ -0,0 +1,10 @@
+{"acceptance_criteria":"- User can select a firmware .bin and complete upload end-to-end\n- Upload follows protocol and handles packet loss via retransmit\n- App shows clear progress and failure states\n- Device reconnects after reboot and is reachable","actor":"","agent_state":"","assignee":null,"await_id":"","await_type":"","close_reason":"","closed_at":null,"closed_by_session":"","compacted_at":null,"compacted_at_commit":null,"compaction_level":0,"content_hash":"c3bd8fa9b5b9d51b04cde5e11c2d8cdedaca29e049a64e8521172a69093b4ba3","created_at":"2026-03-03T15:37:50Z","created_by":"Yandrik","crystallizes":0,"defer_until":null,"description":"Implement the firmware update flow defined in universal-shifters/update-process.md for the Flutter app.\n\nScope:\n- Manual local .bin selection and upload over BLE GATT\n- START/DATA/FINISH/ABORT protocol support\n- Cumulative ACK handling with retransmit\n- Expected reboot/disconnect handling and reconnect check\n\nOut of scope for v1:\n- Hosted firmware distribution/backend\n- Cryptographic signature verification in app\n- Encrypted payload transport mode","design":"","due_at":null,"ephemeral":0,"estimated_minutes":null,"event_kind":"","external_ref":null,"hook_bead":"","id":"abawo_bt_app-20q","is_template":0,"issue_type":"epic","last_activity":null,"metadata":"{}","mol_type":"","notes":"","original_size":null,"owner":"me@yandrik.dev","payload":"","pinned":0,"priority":1,"quality_score":null,"rig":"","role_bead":"","role_type":"","sender":"","source_repo":"","source_system":"","spec_id":"","status":"open","target":"","timeout_ns":0,"title":"Implement Universal Shifters BLE DFU v1 in app (manual .bin upload)","updated_at":"2026-03-03T15:37:50Z","waiters":"","wisp_type":"","work_type":""}
+{"acceptance_criteria":"- All protocol constants match spec exactly\n- No duplicated literal DFU UUID/opcode values across services/UI\n- Domain models compile and are ready for transfer engine integration","actor":"","agent_state":"","assignee":"Yandrik","await_id":"","await_type":"","close_reason":"Implemented DFU constants, flags, opcodes, and typed progress models in shifter_types.dart","closed_at":"2026-03-03T15:45:20Z","closed_by_session":"","compacted_at":null,"compacted_at_commit":null,"compaction_level":0,"content_hash":"d471157a1af6199f0ac0a1565b05b28d1a477e66d9166a3865edb42ea1e8c2ae","created_at":"2026-03-03T15:38:34Z","created_by":"Yandrik","crystallizes":0,"defer_until":null,"description":"Add protocol surface in app code for DFU support.\n\nWork:\n- Add UUID constants for dfu_control (...40008), dfu_data (...40009), dfu_ack (...4000a)\n- Add opcode/frame constants (START=0x01, FINISH=0x02, ABORT=0x03, frame size 64, payload size 63)\n- Add flags constants and typed update-state/progress models used by service/UI\n- Remove future magic numbers by centralizing constants","design":"","due_at":null,"ephemeral":0,"estimated_minutes":null,"event_kind":"","external_ref":null,"hook_bead":"","id":"abawo_bt_app-20q.1","is_template":0,"issue_type":"task","last_activity":null,"metadata":"{}","mol_type":"","notes":"","original_size":null,"owner":"me@yandrik.dev","payload":"","pinned":0,"priority":1,"quality_score":null,"rig":"","role_bead":"","role_type":"","sender":"","source_repo":"","source_system":"","spec_id":"","status":"closed","target":"","timeout_ns":0,"title":"Add DFU protocol constants and domain models","updated_at":"2026-03-03T15:45:20Z","waiters":"","wisp_type":"","work_type":""}
+{"acceptance_criteria":"- CRC test vector passes: \"123456789\" =\u003e 0xCBF43926\n- START/FINISH/ABORT encoders produce exact lengths/byte layout\n- Frame segmentation handles final partial payload correctly\n- Seq wrap and ack+1 rewind helpers covered by tests","actor":"","agent_state":"","assignee":"Yandrik","await_id":"","await_type":"","close_reason":"Added DFU protocol codec/CRC utilities with unit tests for payloads, frames, and sequence helpers","closed_at":"2026-03-03T15:48:57Z","closed_by_session":"","compacted_at":null,"compacted_at_commit":null,"compaction_level":0,"content_hash":"9ba609e63c9e2f8a4e95de6795dace11c610aa9c13908b5dab7aa6cb83ab58d4","created_at":"2026-03-03T15:39:10Z","created_by":"Yandrik","crystallizes":0,"defer_until":null,"description":"Implement pure protocol helpers.\n\nWork:\n- Build START payload (11 bytes, LE fields)\n- Build FINISH/ABORT payloads\n- Build/segment DATA frames (seq + 63-byte payload)\n- Implement ACK/sequence helpers including wrapping behavior\n- Implement CRC32 (ISO-HDLC reflected polynomial 0xEDB88320, init/final xor FFFFFFFF)","design":"","due_at":null,"ephemeral":0,"estimated_minutes":null,"event_kind":"","external_ref":null,"hook_bead":"","id":"abawo_bt_app-20q.2","is_template":0,"issue_type":"task","last_activity":null,"metadata":"{}","mol_type":"","notes":"","original_size":null,"owner":"me@yandrik.dev","payload":"","pinned":0,"priority":1,"quality_score":null,"rig":"","role_bead":"","role_type":"","sender":"","source_repo":"","source_system":"","spec_id":"","status":"closed","target":"","timeout_ns":0,"title":"Implement DFU packet codec and CRC32 utilities with tests","updated_at":"2026-03-03T15:48:57Z","waiters":"","wisp_type":"","work_type":""}
+{"acceptance_criteria":"- UI can run full update flow start-to-finish\n- Progress/state transitions are visible and consistent\n- Conflicting controls are disabled during active transfer\n- Failures and cancellations are clearly shown","actor":"","agent_state":"","assignee":"Yandrik","await_id":"","await_type":"","close_reason":"Integrated firmware file selection, update controls, progress display, and DFU state handling into device details page","closed_at":"2026-03-04T17:07:18Z","closed_by_session":"","compacted_at":null,"compacted_at_commit":null,"compaction_level":0,"content_hash":"e8d2f905536263a05de5e7e86bf8f02fa0491d7129e30f36f2c4dd09acab1882","created_at":"2026-03-03T15:39:10Z","created_by":"Yandrik","crystallizes":0,"defer_until":null,"description":"Add user-facing update controls and status presentation.\n\nWork:\n- Add update card with Select Firmware, Start Update, Cancel\n- Show phase text, progress %, bytes sent/acked, and retry status\n- Disable conflicting actions (gear writes / connect button-to-bike) during DFU\n- Show explicit reboot expectation after FINISH\n- Persist/clear transient state correctly on page lifecycle changes","design":"","due_at":null,"ephemeral":0,"estimated_minutes":null,"event_kind":"","external_ref":null,"hook_bead":"","id":"abawo_bt_app-20q.3","is_template":0,"issue_type":"feature","last_activity":null,"metadata":"{}","mol_type":"","notes":"","original_size":null,"owner":"me@yandrik.dev","payload":"","pinned":0,"priority":1,"quality_score":null,"rig":"","role_bead":"","role_type":"","sender":"","source_repo":"","source_system":"","spec_id":"","status":"closed","target":"","timeout_ns":0,"title":"Integrate firmware update UI into device details page","updated_at":"2026-03-04T17:07:18Z","waiters":"","wisp_type":"","work_type":""}
+{"acceptance_criteria":"- User can select .bin and app obtains byte payload\n- Validation errors are explicit and user-facing\n- Metadata (size/crc/session) is available to transfer engine","actor":"","agent_state":"","assignee":"Yandrik","await_id":"","await_type":"","close_reason":"Completed","closed_at":"2026-03-03T16:04:51Z","closed_by_session":"","compacted_at":null,"compacted_at_commit":null,"compaction_level":0,"content_hash":"be8d8646593e4fc6c269383efb41808c40ffdfb3103e58a90acc0142e32f4711","created_at":"2026-03-03T15:39:10Z","created_by":"Yandrik","crystallizes":0,"defer_until":null,"description":"Implement local firmware artifact input for v1.\n\nWork:\n- Integrate file picker for local firmware .bin\n- Read bytes safely and validate non-empty payload\n- Guard against malformed selections and unsupported files\n- Compute total_len and crc32 from selected bytes\n- Generate per-session session_id and set flags=0x00 for v1","design":"","due_at":null,"ephemeral":0,"estimated_minutes":null,"event_kind":"","external_ref":null,"hook_bead":"","id":"abawo_bt_app-20q.4","is_template":0,"issue_type":"task","last_activity":null,"metadata":"{}","mol_type":"","notes":"","original_size":null,"owner":"me@yandrik.dev","payload":"","pinned":0,"priority":2,"quality_score":null,"rig":"","role_bead":"","role_type":"","sender":"","source_repo":"","source_system":"","spec_id":"","status":"closed","target":"","timeout_ns":0,"title":"Add firmware file selection and binary validation flow","updated_at":"2026-03-03T16:04:51Z","waiters":"","wisp_type":"","work_type":""}
+{"acceptance_criteria":"- Tests cover success and critical failure/retry paths\n- Wrap-around and ack rewind behavior is validated\n- Regressions in sequencing/CRC are caught automatically","actor":"","agent_state":"","assignee":null,"await_id":"","await_type":"","close_reason":"","closed_at":null,"closed_by_session":"","compacted_at":null,"compacted_at_commit":null,"compaction_level":0,"content_hash":"f784095261bfc41eed5544a567f667bb2ba4816433f1d5d6ae21ea4616c7109a","created_at":"2026-03-03T15:39:10Z","created_by":"Yandrik","crystallizes":0,"defer_until":null,"description":"Add targeted tests for protocol and engine behavior.\n\nWork:\n- Unit tests for codec + CRC + sequence helpers\n- Engine tests with mocked BLE ack stream for:\n  - happy path\n  - dropped frame / stalled ACK and rewind\n  - timeout and bounded retry fail\n  - cancel/abort cleanup\n- Ensure deterministic tests for wrap-around sequence scenarios","design":"","due_at":null,"ephemeral":0,"estimated_minutes":null,"event_kind":"","external_ref":null,"hook_bead":"","id":"abawo_bt_app-20q.5","is_template":0,"issue_type":"task","last_activity":null,"metadata":"{}","mol_type":"","notes":"","original_size":null,"owner":"me@yandrik.dev","payload":"","pinned":0,"priority":1,"quality_score":null,"rig":"","role_bead":"","role_type":"","sender":"","source_repo":"","source_system":"","spec_id":"","status":"open","target":"","timeout_ns":0,"title":"Add DFU test suite for happy path, loss, stalls, and cancel","updated_at":"2026-03-03T15:39:10Z","waiters":"","wisp_type":"","work_type":""}
+{"acceptance_criteria":"- Team can execute update and triage failures from docs\n- v1 limitations are explicit and not ambiguous\n- QA checklist is actionable and complete","actor":"","agent_state":"","assignee":null,"await_id":"","await_type":"","close_reason":"","closed_at":null,"closed_by_session":"","compacted_at":null,"compacted_at_commit":null,"compaction_level":0,"content_hash":"3a5dd3fd4d901ae53a80b3c7b488b41db5e09f7cc50da0e6c185c075b8ad7e51","created_at":"2026-03-03T15:39:10Z","created_by":"Yandrik","crystallizes":0,"defer_until":null,"description":"Document how to use and support the new updater.\n\nWork:\n- Add app-side DFU flow docs (select/start/progress/reboot/reconnect)\n- Add troubleshooting matrix for common failures (MTU, stalled ACK, reconnect timeout, CRC mismatch)\n- Record explicit v1 limitations and future security/version-verification roadmap\n- Add manual QA checklist for release validation","design":"","due_at":null,"ephemeral":0,"estimated_minutes":null,"event_kind":"","external_ref":null,"hook_bead":"","id":"abawo_bt_app-20q.6","is_template":0,"issue_type":"chore","last_activity":null,"metadata":"{}","mol_type":"","notes":"","original_size":null,"owner":"me@yandrik.dev","payload":"","pinned":0,"priority":2,"quality_score":null,"rig":"","role_bead":"","role_type":"","sender":"","source_repo":"","source_system":"","spec_id":"","status":"open","target":"","timeout_ns":0,"title":"Document DFU v1 operator flow, troubleshooting, and constraints","updated_at":"2026-03-03T15:39:10Z","waiters":"","wisp_type":"","work_type":""}
+{"acceptance_criteria":"- Happy path reaches done with full ACKed transfer\n- Loss/stall path retransmits and recovers correctly\n- Cancel triggers ABORT and returns to idle cleanly\n- Engine surfaces explicit error reasons for UI","actor":"","agent_state":"","assignee":"Yandrik","await_id":"","await_type":"","close_reason":"Implemented firmware transfer engine with preflight, cumulative ACK handling, retries, cancel ABORT, and unit tests","closed_at":"2026-03-03T16:00:45Z","closed_by_session":"","compacted_at":null,"compacted_at_commit":null,"compaction_level":0,"content_hash":"042d39f373b05c758d2d2724c757a7e790de522c2def68f8f12e9f2fbbb70dc6","created_at":"2026-03-03T15:39:18Z","created_by":"Yandrik","crystallizes":0,"defer_until":null,"description":"Build the runtime transfer engine used by UI.\n\nWork:\n- Subscribe to dfu_ack indications before START\n- Send START and require initial ACK 0xFF\n- Stream dfu_data using write without response in windows (configurable, default 8)\n- Track cumulative ACK; on stall/timeout rewind to ack+1 (wrapping aware)\n- Handle invalid/no-progress scenarios with bounded retries\n- Send FINISH after full acked upload\n- Support ABORT for cancellation and terminal error cleanup\n- Emit state/progress stream for UI","design":"","due_at":null,"ephemeral":0,"estimated_minutes":null,"event_kind":"","external_ref":null,"hook_bead":"","id":"abawo_bt_app-20q.7","is_template":0,"issue_type":"feature","last_activity":null,"metadata":"{}","mol_type":"","notes":"","original_size":null,"owner":"me@yandrik.dev","payload":"","pinned":0,"priority":1,"quality_score":null,"rig":"","role_bead":"","role_type":"","sender":"","source_repo":"","source_system":"","spec_id":"","status":"closed","target":"","timeout_ns":0,"title":"Implement BLE DFU transfer engine with cumulative ACK retransmit","updated_at":"2026-03-03T16:00:45Z","waiters":"","wisp_type":"","work_type":""}
+{"acceptance_criteria":"- Upload start is blocked when MTU/connection preconditions fail\n- Error messages explain what failed and next step\n- Preflight result is exposed for transfer start path","actor":"","agent_state":"","assignee":"Yandrik","await_id":"","await_type":"","close_reason":"Implemented DFU preflight checks for connection state and negotiated MTU with typed results and tests","closed_at":"2026-03-03T15:55:11Z","closed_by_session":"","compacted_at":null,"compacted_at_commit":null,"compaction_level":0,"content_hash":"558fa59b42c42b122eefc43d3483d1a61bdd995464dbc36d166f763f42366e87","created_at":"2026-03-03T15:39:24Z","created_by":"Yandrik","crystallizes":0,"defer_until":null,"description":"Add runtime guards required for protocol correctness.\n\nWork:\n- Ensure active connection to target button before DFU start\n- Request elevated MTU (e.g. 128/247) before upload\n- Validate negotiated MTU supports 64-byte data writes (ATT payload requirement)\n- Fail early with actionable message when transport preconditions are not met","design":"","due_at":null,"ephemeral":0,"estimated_minutes":null,"event_kind":"","external_ref":null,"hook_bead":"","id":"abawo_bt_app-20q.8","is_template":0,"issue_type":"task","last_activity":null,"metadata":"{}","mol_type":"","notes":"","original_size":null,"owner":"me@yandrik.dev","payload":"","pinned":0,"priority":1,"quality_score":null,"rig":"","role_bead":"","role_type":"","sender":"","source_repo":"","source_system":"","spec_id":"","status":"closed","target":"","timeout_ns":0,"title":"Add BLE DFU preflight checks (MTU and connection readiness)","updated_at":"2026-03-03T15:55:11Z","waiters":"","wisp_type":"","work_type":""}
+{"acceptance_criteria":"- Expected reset does not appear as generic failure\n- Reconnect path is attempted and result is surfaced\n- Completion criteria are consistent with v1 definition","actor":"","agent_state":"","assignee":"Yandrik","await_id":"","await_type":"","close_reason":"Added post-FINISH reset disconnect, reconnect, and reachability verification before marking update complete","closed_at":"2026-03-03T16:12:02Z","closed_by_session":"","compacted_at":null,"compacted_at_commit":null,"compaction_level":0,"content_hash":"024e8aa245b93098013fbd66102a621c9ecd58a1dda9fc276c74cd278bdd3512","created_at":"2026-03-03T15:39:28Z","created_by":"Yandrik","crystallizes":0,"defer_until":null,"description":"Implement robust completion handling around expected device reset.\n\nWork:\n- Treat disconnect after successful FINISH as expected behavior\n- Reconnect with update-specific timeout strategy\n- Verify device is reachable/readable after reconnect\n- Surface success only after reconnect verification path\n- Document limitation: no strict firmware version compare until firmware exposes version characteristic","design":"","due_at":null,"ephemeral":0,"estimated_minutes":null,"event_kind":"","external_ref":null,"hook_bead":"","id":"abawo_bt_app-20q.9","is_template":0,"issue_type":"task","last_activity":null,"metadata":"{}","mol_type":"","notes":"","original_size":null,"owner":"me@yandrik.dev","payload":"","pinned":0,"priority":1,"quality_score":null,"rig":"","role_bead":"","role_type":"","sender":"","source_repo":"","source_system":"","spec_id":"","status":"closed","target":"","timeout_ns":0,"title":"Handle post-FINISH disconnect/reboot and reconnect verification","updated_at":"2026-03-03T16:12:02Z","waiters":"","wisp_type":"","work_type":""}

.beads/config.yaml

@@ -0,0 +1,55 @@
+# Beads Configuration File
+# This file configures default behavior for all bd commands in this repository
+# All settings can also be set via environment variables (BD_* prefix)
+# or overridden with command-line flags
+
+# Issue prefix for this repository (used by bd init)
+# If not set, bd init will auto-detect from directory name
+# Example: issue-prefix: "myproject" creates issues like "myproject-1", "myproject-2", etc.
+# issue-prefix: ""
+
+# Use no-db mode: load from JSONL, write back after each command
+# When true, bd will use .beads/issues.jsonl as the source of truth
+# instead of the Dolt database
+# no-db: false
+
+# Enable JSON output by default
+# json: false
+
+# Feedback title formatting for mutating commands (create/update/close/dep/edit)
+# 0 = hide titles, N > 0 = truncate to N characters
+# output:
+#   title-length: 255
+
+# Default actor for audit trails (overridden by BD_ACTOR or --actor)
+# actor: ""
+
+# Export events (audit trail) to .beads/events.jsonl on each flush/sync
+# When enabled, new events are appended incrementally using a high-water mark.
+# Use 'bd export --events' to trigger manually regardless of this setting.
+# events-export: false
+
+# Multi-repo configuration (experimental - bd-307)
+# Allows hydrating from multiple repositories and routing writes to the correct JSONL
+# repos:
+#   primary: "."  # Primary repo (where this database lives)
+#   additional:   # Additional repos to hydrate from (read-only)
+#     - ~/beads-planning  # Personal planning repo
+#     - ~/work-planning   # Work planning repo
+
+# JSONL backup (periodic export for off-machine recovery)
+# Auto-enabled when a git remote exists. Override explicitly:
+# backup:
+#   enabled: false     # Disable auto-backup entirely
+#   interval: 15m      # Minimum time between auto-exports
+#   git-push: false    # Disable git push (export locally only)
+#   git-repo: ""       # Separate git repo for backups (default: project repo)
+
+# Integration settings (access with 'bd config get/set')
+# These are stored in the database, not in this file:
+# - jira.url
+# - jira.project
+# - linear.url
+# - linear.api-key
+# - github.org
+# - github.repo

.beads/dolt-monitor.pid

@@ -0,0 +1 @@
+48179

.beads/dolt-server.activity

@@ -0,0 +1 @@
+1772550918

.beads/dolt-server.port

@@ -0,0 +1 @@
+13365

.beads/hooks/post-checkout

@@ -0,0 +1,9 @@
+#!/usr/bin/env sh
+# --- BEGIN BEADS INTEGRATION v0.57.0 ---
+# This section is managed by beads. Do not remove these markers.
+if command -v bd >/dev/null 2>&1; then
+  export BD_GIT_HOOK=1
+  bd hooks run post-checkout "$@"
+  _bd_exit=$?; if [ $_bd_exit -ne 0 ]; then exit $_bd_exit; fi
+fi
+# --- END BEADS INTEGRATION ---

.beads/hooks/post-merge

@@ -0,0 +1,9 @@
+#!/usr/bin/env sh
+# --- BEGIN BEADS INTEGRATION v0.57.0 ---
+# This section is managed by beads. Do not remove these markers.
+if command -v bd >/dev/null 2>&1; then
+  export BD_GIT_HOOK=1
+  bd hooks run post-merge "$@"
+  _bd_exit=$?; if [ $_bd_exit -ne 0 ]; then exit $_bd_exit; fi
+fi
+# --- END BEADS INTEGRATION ---

.beads/hooks/pre-commit

@@ -0,0 +1,9 @@
+#!/usr/bin/env sh
+# --- BEGIN BEADS INTEGRATION v0.57.0 ---
+# This section is managed by beads. Do not remove these markers.
+if command -v bd >/dev/null 2>&1; then
+  export BD_GIT_HOOK=1
+  bd hooks run pre-commit "$@"
+  _bd_exit=$?; if [ $_bd_exit -ne 0 ]; then exit $_bd_exit; fi
+fi
+# --- END BEADS INTEGRATION ---

.beads/hooks/pre-push

@@ -0,0 +1,9 @@
+#!/usr/bin/env sh
+# --- BEGIN BEADS INTEGRATION v0.57.0 ---
+# This section is managed by beads. Do not remove these markers.
+if command -v bd >/dev/null 2>&1; then
+  export BD_GIT_HOOK=1
+  bd hooks run pre-push "$@"
+  _bd_exit=$?; if [ $_bd_exit -ne 0 ]; then exit $_bd_exit; fi
+fi
+# --- END BEADS INTEGRATION ---

.beads/hooks/prepare-commit-msg

@@ -0,0 +1,9 @@
+#!/usr/bin/env sh
+# --- BEGIN BEADS INTEGRATION v0.57.0 ---
+# This section is managed by beads. Do not remove these markers.
+if command -v bd >/dev/null 2>&1; then
+  export BD_GIT_HOOK=1
+  bd hooks run prepare-commit-msg "$@"
+  _bd_exit=$?; if [ $_bd_exit -ne 0 ]; then exit $_bd_exit; fi
+fi
+# --- END BEADS INTEGRATION ---

.beads/metadata.json

@@ -0,0 +1,6 @@
+{
+  "database": "dolt",
+  "backend": "dolt",
+  "dolt_mode": "server",
+  "dolt_database": "abawo_bt_app"
+}

.gitignore

@@ -44,3 +44,7 @@ app.*.map.json
 /android/app/profile
 /android/app/release
 .aider*
+
+# Dolt database files (added by bd init)
+.dolt/
+*.db

AGENTS.md

@@ -0,0 +1,150 @@
+# Agent Instructions
+
+This project uses **bd** (beads) for issue tracking. Run `bd onboard` to get started.
+
+## Quick Reference
+
+```bash
+bd ready              # Find available work
+bd show <id>          # View issue details
+bd update <id> --claim  # Claim work atomically
+bd close <id>         # Complete work
+bd sync               # Sync with git
+```
+
+## Non-Interactive Shell Commands
+
+**ALWAYS use non-interactive flags** with file operations to avoid hanging on confirmation prompts.
+
+Shell commands like `cp`, `mv`, and `rm` may be aliased to include `-i` (interactive) mode on some systems, causing the agent to hang indefinitely waiting for y/n input.
+
+**Use these forms instead:**
+```bash
+# Force overwrite without prompting
+cp -f source dest           # NOT: cp source dest
+mv -f source dest           # NOT: mv source dest
+rm -f file                  # NOT: rm file
+
+# For recursive operations
+rm -rf directory            # NOT: rm -r directory
+cp -rf source dest          # NOT: cp -r source dest
+```
+
+**Other commands that may prompt:**
+- `scp` - use `-o BatchMode=yes` for non-interactive
+- `ssh` - use `-o BatchMode=yes` to fail instead of prompting
+- `apt-get` - use `-y` flag
+- `brew` - use `HOMEBREW_NO_AUTO_UPDATE=1` env var
+
+<!-- BEGIN BEADS INTEGRATION -->
+## Issue Tracking with bd (beads)
+
+**IMPORTANT**: This project uses **bd (beads)** for ALL issue tracking. Do NOT use markdown TODOs, task lists, or other tracking methods.
+
+### Why bd?
+
+- Dependency-aware: Track blockers and relationships between issues
+- Git-friendly: Auto-syncs to JSONL for version control
+- Agent-optimized: JSON output, ready work detection, discovered-from links
+- Prevents duplicate tracking systems and confusion
+
+### Quick Start
+
+**Check for ready work:**
+
+```bash
+bd ready --json
+```
+
+**Create new issues:**
+
+```bash
+bd create "Issue title" --description="Detailed context" -t bug|feature|task -p 0-4 --json
+bd create "Issue title" --description="What this issue is about" -p 1 --deps discovered-from:bd-123 --json
+```
+
+**Claim and update:**
+
+```bash
+bd update <id> --claim --json
+bd update bd-42 --priority 1 --json
+```
+
+**Complete work:**
+
+```bash
+bd close bd-42 --reason "Completed" --json
+```
+
+### Issue Types
+
+- `bug` - Something broken
+- `feature` - New functionality
+- `task` - Work item (tests, docs, refactoring)
+- `epic` - Large feature with subtasks
+- `chore` - Maintenance (dependencies, tooling)
+
+### Priorities
+
+- `0` - Critical (security, data loss, broken builds)
+- `1` - High (major features, important bugs)
+- `2` - Medium (default, nice-to-have)
+- `3` - Low (polish, optimization)
+- `4` - Backlog (future ideas)
+
+### Workflow for AI Agents
+
+1. **Check ready work**: `bd ready` shows unblocked issues
+2. **Claim your task atomically**: `bd update <id> --claim`
+3. **Work on it**: Implement, test, document
+4. **Discover new work?** Create linked issue:
+   - `bd create "Found bug" --description="Details about what was found" -p 1 --deps discovered-from:<parent-id>`
+5. **Complete**: `bd close <id> --reason "Done"`
+
+### Auto-Sync
+
+bd automatically syncs with git:
+
+- Exports to `.beads/issues.jsonl` after changes (5s debounce)
+- Imports from JSONL when newer (e.g., after `git pull`)
+- No manual export/import needed!
+
+### Important Rules
+
+- ✅ Use bd for ALL task tracking
+- ✅ Always use `--json` flag for programmatic use
+- ✅ Link discovered work with `discovered-from` dependencies
+- ✅ Check `bd ready` before asking "what should I work on?"
+- ❌ Do NOT create markdown TODO lists
+- ❌ Do NOT use external issue trackers
+- ❌ Do NOT duplicate tracking systems
+
+For more details, see README.md and docs/QUICKSTART.md.
+
+<!-- END BEADS INTEGRATION -->
+
+## Landing the Plane (Session Completion)
+
+**When ending a work session**, you MUST complete ALL steps below. Work is NOT complete until `git push` succeeds.
+
+**MANDATORY WORKFLOW:**
+
+1. **File issues for remaining work** - Create issues for anything that needs follow-up
+2. **Run quality gates** (if code changed) - Tests, linters, builds
+3. **Update issue status** - Close finished work, update in-progress items
+4. **PUSH TO REMOTE** - This is MANDATORY:
+   ```bash
+   git pull --rebase
+   bd sync
+   git push
+   git status  # MUST show "up to date with origin"
+   ```
+5. **Clean up** - Clear stashes, prune remote branches
+6. **Verify** - All changes committed AND pushed
+7. **Hand off** - Provide context for next session
+
+**CRITICAL RULES:**
+- Work is NOT complete until `git push` succeeds
+- NEVER stop before pushing - that leaves work stranded locally
+- NEVER say "ready to push when you are" - YOU must push
+- If push fails, resolve and retry until it succeeds

android/app/build.gradle

@@ -11,12 +11,12 @@ android {
     ndkVersion = flutter.ndkVersion
 
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_1_8
+        sourceCompatibility = JavaVersion.VERSION_17
-        targetCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_17
     }
 
     kotlinOptions {
-        jvmTarget = JavaVersion.VERSION_1_8
+        jvmTarget = JavaVersion.VERSION_17
     }
 
     defaultConfig {

android/gradle/wrapper/gradle-wrapper.properties

@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-all.zip

android/settings.gradle

@@ -18,8 +18,8 @@ pluginManagement {
 
 plugins {
     id "dev.flutter.flutter-plugin-loader" version "1.0.0"
-    id "com.android.application" version "8.1.0" apply false
+    id "com.android.application" version "8.6.0" apply false
-    id "org.jetbrains.kotlin.android" version "1.8.22" apply false
+    id "org.jetbrains.kotlin.android" version "2.1.0" apply false
 }
 
 include ":app"

devtools_options.yaml

@@ -0,0 +1,3 @@
+description: This file stores settings for Dart & Flutter DevTools.
+documentation: https://docs.flutter.dev/tools/devtools/extensions#configure-extension-enablement-states
+extensions:

flutter_rust_bridge.yaml

@@ -0,0 +1,3 @@
+rust_input: crate::api
+rust_root: rust/
+dart_output: lib/src/rust

integration_test/simple_test.dart

@@ -0,0 +1,13 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:abawo_bt_app/main.dart';
+import 'package:abawo_bt_app/src/rust/frb_generated.dart';
+import 'package:integration_test/integration_test.dart';
+
+void main() {
+  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
+  setUpAll(() async => await RustLib.init());
+  testWidgets('Can call rust function', (WidgetTester tester) async {
+    await tester.pumpWidget(const MyApp());
+    expect(find.textContaining('Result: `Hello, Tom!`'), findsOneWidget);
+  });
+}

lib/controller/bluetooth.dart

@@ -1,131 +1,367 @@
 import 'dart:async';
-import 'dart:io';
 
 import 'package:anyhow/anyhow.dart';
-import 'package:flutter/foundation.dart';
-import 'package:flutter_blue_plus/flutter_blue_plus.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_reactive_ble/flutter_reactive_ble.dart'
+    hide ConnectionStatus, Result, Logger;
 import 'package:logging/logging.dart';
+import 'package:rxdart/rxdart.dart';
 import 'package:riverpod_annotation/riverpod_annotation.dart';
 
 part 'bluetooth.g.dart';
 
 final log = Logger('BluetoothController');
 
-@riverpod
+@Riverpod(keepAlive: true)
+FlutterReactiveBle reactiveBle(Ref ref) {
+  ref.keepAlive();
+  return FlutterReactiveBle();
+}
+
+@Riverpod(keepAlive: true)
 Future<BluetoothController> bluetooth(Ref ref) async {
-  final controller = BluetoothController();
+  ref.keepAlive();
-  log.info(await controller.init());
+  final controller = BluetoothController(ref.read(reactiveBleProvider));
+  await controller.init();
   return controller;
 }
 
+@Riverpod(keepAlive: true)
+Stream<(ConnectionStatus, String?)> connectionStatus(Ref ref) {
+  final asyncController = ref.watch(bluetoothProvider);
+  return asyncController.when(
+    data: (controller) => controller.connectionStateStream,
+    loading: () => Stream.value((ConnectionStatus.disconnected, null)),
+    error: (_, __) => Stream.value((ConnectionStatus.disconnected, null)),
+  );
+}
+
+/// Represents the connection status of the Bluetooth device.
+enum ConnectionStatus { disconnected, connecting, connected, disconnecting }
+
 class BluetoothController {
-  StreamSubscription<BluetoothAdapterState>? _btStateSubscription;
+  BluetoothController(this._ble);
-  StreamSubscription<List<ScanResult>>? _scanResultsSubscription;
+
-  List<ScanResult> _latestScanResults = [];
+  static const int defaultMtu = 64;
+
+  final FlutterReactiveBle _ble;
+
+  StreamSubscription<BleStatus>? _bleStatusSubscription;
+  StreamSubscription<DiscoveredDevice>? _scanResultsSubscription;
+  Timer? _scanTimeout;
+  final Map<String, DiscoveredDevice> _scanResultsById = {};
+  final _scanResultsSubject =
+      BehaviorSubject<List<DiscoveredDevice>>.seeded(const []);
+  final _isScanningSubject = BehaviorSubject<bool>.seeded(false);
+
+  String? _connectedDeviceId;
+  StreamSubscription<ConnectionStateUpdate>? _connectionStateSubscription;
+  final _connectionStateSubject =
+      BehaviorSubject<(ConnectionStatus, String?)>.seeded(
+          (ConnectionStatus.disconnected, null));
+
+  Stream<(ConnectionStatus, String?)> get connectionStateStream =>
+      _connectionStateSubject.stream;
+
+  (ConnectionStatus, String?) get currentConnectionState =>
+      _connectionStateSubject.value;
+
+  Stream<List<DiscoveredDevice>> get scanResultsStream =>
+      _scanResultsSubject.stream;
+
+  Stream<bool> get isScanningStream => _isScanningSubject.stream;
+
+  List<DiscoveredDevice> get scanResults => _scanResultsSubject.value;
 
   Future<Result<void>> init() async {
-    if (await FlutterBluePlus.isSupported == false) {
+    _bleStatusSubscription ??= _ble.statusStream.listen((status) {
-      log.severe("Bluetooth is not supported on this device!");
+      log.info('BLE status: $status');
-      return bail("Bluetooth is not supported on this device!");
-    }
-
-    _btStateSubscription =
-        FlutterBluePlus.adapterState.listen((BluetoothAdapterState state) {
-      if (state == BluetoothAdapterState.on) {
-        log.info("Bluetooth is on!");
-        // usually start scanning, connecting, etc
-      } else {
-        log.info("Bluetooth is off!");
-        // show an error to the user, etc
-      }
     });
-
-    if (!kIsWeb && Platform.isAndroid) {
-      await FlutterBluePlus.turnOn();
-    }
-
     return Ok(null);
   }
 
-  /// Start scanning for Bluetooth devices
-  ///
-  /// [withServices] - Optional list of service UUIDs to filter devices by
-  /// [withNames] - Optional list of device names to filter by
-  /// [timeout] - Optional duration after which scanning will automatically stop
   Future<Result<void>> startScan({
-    List<Guid>? withServices,
+    List<Uuid>? withServices,
-    List<String>? withNames,
     Duration? timeout,
+    ScanMode scanMode = ScanMode.lowLatency,
+    bool requireLocationServicesEnabled = true,
   }) async {
-    try {
+    if (_isScanningSubject.value) {
-      // Wait for Bluetooth to be enabled
+      return Ok(null);
-      await FlutterBluePlus.adapterState
-          .where((val) => val == BluetoothAdapterState.on)
-          .first;
-
-      // Set up scan results listener
-      _scanResultsSubscription = FlutterBluePlus.onScanResults.listen(
-        (results) {
-          if (results.isNotEmpty) {
-            _latestScanResults = results;
-            ScanResult latestResult = results.last;
-            log.info(
-                '${latestResult.device.remoteId}: "${latestResult.advertisementData.advName}" found!');
     }
-        },
-        onError: (e) {
-          log.severe('Scan error: $e');
-        },
-      );
 
-      // Clean up subscription when scanning completes
+    try {
-      FlutterBluePlus.cancelWhenScanComplete(_scanResultsSubscription!);
+      final status = _ble.status;
+      if (status != BleStatus.ready) {
+        await _ble.statusStream
+            .where((value) => value == BleStatus.ready)
+            .first;
+      }
 
-      // Start scanning with optional parameters
+      _scanTimeout?.cancel();
-      await FlutterBluePlus.startScan(
+      _scanResultsById.clear();
-        withServices: withServices ?? [],
+      _scanResultsSubject.add(const []);
-        withNames: withNames ?? [],
+      _isScanningSubject.add(true);
-        timeout: timeout,
+
-      );
+      _scanResultsSubscription = _ble
+          .scanForDevices(
+        withServices: withServices ?? const [],
+        scanMode: scanMode,
+        requireLocationServicesEnabled: requireLocationServicesEnabled,
+      )
+          .listen((device) {
+        _scanResultsById[device.id] = device;
+        _scanResultsSubject
+            .add(_scanResultsById.values.toList(growable: false));
+      }, onError: (Object error, StackTrace st) {
+        log.severe('Scan error: $error', error, st);
+        _isScanningSubject.add(false);
+      });
+
+      if (timeout != null) {
+        _scanTimeout = Timer(timeout, () {
+          unawaited(stopScan());
+        });
+      }
 
       return Ok(null);
     } catch (e) {
+      _isScanningSubject.add(false);
       return bail('Failed to start Bluetooth scan: $e');
     }
   }
 
-  /// Stop an ongoing Bluetooth scan
   Future<Result<void>> stopScan() async {
     try {
-      await FlutterBluePlus.stopScan();
+      _scanTimeout?.cancel();
+      _scanTimeout = null;
+      await _scanResultsSubscription?.cancel();
+      _scanResultsSubscription = null;
+      _isScanningSubject.add(false);
       return Ok(null);
     } catch (e) {
+      _isScanningSubject.add(false);
       return bail('Failed to stop Bluetooth scan: $e');
     }
   }
 
-  /// Get the latest scan results
-  List<ScanResult> get scanResults => _latestScanResults;
-
-  /// Wait for the current scan to complete
   Future<Result<void>> waitForScanToComplete() async {
     try {
-      await FlutterBluePlus.isScanning.where((val) => val == false).first;
+      await isScanningStream.where((val) => val == false).first;
       return Ok(null);
     } catch (e) {
       return bail('Error waiting for scan to complete: $e');
     }
   }
 
-  /// Check if currently scanning
+  Future<bool> get isScanning async => isScanningStream.first;
-  Future<bool> get isScanning async {
+
-    return await FlutterBluePlus.isScanning.first;
+  Future<Result<void>> connect(DiscoveredDevice device,
+      {Duration? timeout}) async {
+    return connectById(device.id, timeout: timeout ?? Duration(seconds: 10));
+  }
+
+  Future<Result<void>> connectById(
+    String deviceId, {
+    Duration timeout = const Duration(seconds: 10),
+    Map<Uuid, List<Uuid>>? servicesWithCharacteristicsToDiscover,
+  }) async {
+    final currentState = currentConnectionState;
+    final currentDeviceId = currentState.$2;
+
+    if (deviceId == currentDeviceId &&
+        (currentState.$1 == ConnectionStatus.connected ||
+            currentState.$1 == ConnectionStatus.connecting)) {
+      log.info('Already connected or connecting to $deviceId.');
+      if (currentState.$1 == ConnectionStatus.connected) {
+        unawaited(_requestMtuOnConnect(deviceId));
+      }
+      return Ok(null);
+    }
+
+    if (currentDeviceId != null && deviceId != currentDeviceId) {
+      final disconnectResult = await disconnect();
+      if (disconnectResult.isErr()) {
+        return disconnectResult
+            .context('Failed to disconnect from previous device');
+      }
+      await Future.delayed(const Duration(milliseconds: 300));
+    }
+
+    try {
+      await _connectionStateSubscription?.cancel();
+      _updateConnectionState(ConnectionStatus.connecting, deviceId);
+
+      _connectionStateSubscription = _ble
+          .connectToDevice(
+        id: deviceId,
+        connectionTimeout: timeout,
+        servicesWithCharacteristicsToDiscover:
+            servicesWithCharacteristicsToDiscover,
+      )
+          .listen((update) {
+        switch (update.connectionState) {
+          case DeviceConnectionState.connected:
+            _connectedDeviceId = deviceId;
+            _updateConnectionState(ConnectionStatus.connected, deviceId);
+            unawaited(_requestMtuOnConnect(deviceId));
+            break;
+          case DeviceConnectionState.connecting:
+            _updateConnectionState(ConnectionStatus.connecting, deviceId);
+            break;
+          case DeviceConnectionState.disconnecting:
+            _updateConnectionState(ConnectionStatus.disconnecting, deviceId);
+            break;
+          case DeviceConnectionState.disconnected:
+            _cleanUpConnection();
+            break;
+        }
+      }, onError: (Object error, StackTrace st) {
+        log.severe('Failed to connect to $deviceId: $error', error, st);
+        _cleanUpConnection();
+      });
+
+      return Ok(null);
+    } catch (e) {
+      _cleanUpConnection();
+      return bail('Failed to connect to $deviceId: $e');
+    }
+  }
+
+  Future<Result<void>> disconnect() async {
+    final deviceIdToDisconnect =
+        _connectedDeviceId ?? _connectionStateSubject.value.$2;
+    if (deviceIdToDisconnect == null) {
+      _cleanUpConnection();
+      return Ok(null);
+    }
+
+    _updateConnectionState(
+        ConnectionStatus.disconnecting, deviceIdToDisconnect);
+    try {
+      await _connectionStateSubscription?.cancel();
+      _connectionStateSubscription = null;
+      _cleanUpConnection();
+      return Ok(null);
+    } catch (e) {
+      _cleanUpConnection();
+      return bail('Failed to disconnect from $deviceIdToDisconnect: $e');
+    }
+  }
+
+  Future<Result<List<int>>> readCharacteristic(
+    String deviceId,
+    String serviceUuid,
+    String characteristicUuid,
+  ) async {
+    try {
+      final characteristic = QualifiedCharacteristic(
+        serviceId: Uuid.parse(serviceUuid),
+        characteristicId: Uuid.parse(characteristicUuid),
+        deviceId: deviceId,
+      );
+      final value = await _ble.readCharacteristic(characteristic);
+      return Ok(value);
+    } catch (e) {
+      return bail('Error reading characteristic: $e');
+    }
+  }
+
+  Future<Result<void>> writeCharacteristic(
+    String deviceId,
+    String serviceUuid,
+    String characteristicUuid,
+    List<int> value, {
+    bool withResponse = true,
+  }) async {
+    try {
+      final characteristic = QualifiedCharacteristic(
+        serviceId: Uuid.parse(serviceUuid),
+        characteristicId: Uuid.parse(characteristicUuid),
+        deviceId: deviceId,
+      );
+      if (withResponse) {
+        await _ble.writeCharacteristicWithResponse(
+          characteristic,
+          value: value,
+        );
+      } else {
+        await _ble.writeCharacteristicWithoutResponse(
+          characteristic,
+          value: value,
+        );
+      }
+      return Ok(null);
+    } catch (e) {
+      return bail('Error writing characteristic: $e');
+    }
+  }
+
+  Future<Result<void>> requestMtu(String deviceId,
+      {int mtu = defaultMtu}) async {
+    final result = await requestMtuAndGetValue(deviceId, mtu: mtu);
+    if (result.isErr()) {
+      return bail(result.unwrapErr());
+    }
+    return Ok(null);
+  }
+
+  Future<Result<int>> requestMtuAndGetValue(String deviceId,
+      {int mtu = defaultMtu}) async {
+    try {
+      final negotiatedMtu = await _ble.requestMtu(deviceId: deviceId, mtu: mtu);
+      log.info(
+          'MTU negotiated for $deviceId: requested $mtu, got $negotiatedMtu');
+      return Ok(negotiatedMtu);
+    } catch (e) {
+      return bail('Error requesting MTU $mtu for $deviceId: $e');
+    }
+  }
+
+  Future<void> _requestMtuOnConnect(String deviceId) async {
+    final mtuResult = await requestMtu(deviceId, mtu: defaultMtu);
+    if (mtuResult.isErr()) {
+      log.warning(
+          'MTU request after connect failed for $deviceId: ${mtuResult.unwrapErr()}');
+    }
+  }
+
+  Stream<List<int>> subscribeToCharacteristic(
+    String deviceId,
+    String serviceUuid,
+    String characteristicUuid,
+  ) {
+    final characteristic = QualifiedCharacteristic(
+      serviceId: Uuid.parse(serviceUuid),
+      characteristicId: Uuid.parse(characteristicUuid),
+      deviceId: deviceId,
+    );
+    return _ble.subscribeToCharacteristic(characteristic);
+  }
+
+  void _updateConnectionState(ConnectionStatus status, String? deviceId) {
+    if (_connectionStateSubject.value.$1 == status &&
+        _connectionStateSubject.value.$2 == deviceId) {
+      return;
+    }
+    _connectionStateSubject.add((status, deviceId));
+    log.fine(
+        'Connection state updated: $status, device: ${deviceId ?? 'none'}');
+  }
+
+  void _cleanUpConnection() {
+    _connectedDeviceId = null;
+    _updateConnectionState(ConnectionStatus.disconnected, null);
   }
 
   Future<Result<void>> dispose() async {
+    _scanTimeout?.cancel();
     await _scanResultsSubscription?.cancel();
-    await _btStateSubscription?.cancel();
+    await _bleStatusSubscription?.cancel();
+    await disconnect();
+    await _scanResultsSubject.close();
+    await _isScanningSubject.close();
+    await _connectionStateSubject.close();
     return Ok(null);
   }
 }

lib/controller/bluetooth.g.dart

@@ -6,7 +6,24 @@ part of 'bluetooth.dart';
 // RiverpodGenerator
 // **************************************************************************
 
-String _$bluetoothHash() => r'5e9c37c57e723b84dd08fd8763e7c445b3a4dbf3';
+String _$bluetoothHash() => r'f1fb75c72a7a473fc545baea6bedfdf4a21ab26b';
+
+String _$reactiveBleHash() => r'9c4d4f37f7a0da1741b42d6a4c3f0f00c2c07f3c';
+
+/// See also [reactiveBle].
+@ProviderFor(reactiveBle)
+final reactiveBleProvider = AutoDisposeProvider<FlutterReactiveBle>.internal(
+  reactiveBle,
+  name: r'reactiveBleProvider',
+  debugGetCreateSourceHash:
+      const bool.fromEnvironment('dart.vm.product') ? null : _$reactiveBleHash,
+  dependencies: null,
+  allTransitiveDependencies: null,
+);
+
+@Deprecated('Will be removed in 3.0. Use Ref instead')
+// ignore: unused_element
+typedef ReactiveBleRef = AutoDisposeProviderRef<FlutterReactiveBle>;
 
 /// See also [bluetooth].
 @ProviderFor(bluetooth)
@@ -23,5 +40,24 @@ final bluetoothProvider =
 @Deprecated('Will be removed in 3.0. Use Ref instead')
 // ignore: unused_element
 typedef BluetoothRef = AutoDisposeFutureProviderRef<BluetoothController>;
+String _$connectionStatusHash() => r'4dba587ef7703dabca4b2b9800e0798decfe2977';
+
+/// See also [connectionStatus].
+@ProviderFor(connectionStatus)
+final connectionStatusProvider =
+    AutoDisposeStreamProvider<(ConnectionStatus, String?)>.internal(
+  connectionStatus,
+  name: r'connectionStatusProvider',
+  debugGetCreateSourceHash: const bool.fromEnvironment('dart.vm.product')
+      ? null
+      : _$connectionStatusHash,
+  dependencies: null,
+  allTransitiveDependencies: null,
+);
+
+@Deprecated('Will be removed in 3.0. Use Ref instead')
+// ignore: unused_element
+typedef ConnectionStatusRef
+    = AutoDisposeStreamProviderRef<(ConnectionStatus, String?)>;
 // ignore_for_file: type=lint
 // ignore_for_file: subtype_of_sealed_class, invalid_use_of_internal_member, invalid_use_of_visible_for_testing_member, deprecated_member_use_from_same_package

lib/controller/bluetooth.old.dart

@@ -0,0 +1,627 @@
+import 'dart:async';
+import 'dart:io';
+
+import 'package:anyhow/anyhow.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter_blue_plus/flutter_blue_plus.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:logging/logging.dart';
+import 'package:rxdart/rxdart.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'bluetooth.g.dart';
+
+final log = Logger('BluetoothController');
+
+@Riverpod(keepAlive: true)
+Future<BluetoothController> bluetooth(Ref ref) async {
+  ref.keepAlive();
+  final controller = BluetoothController();
+  log.info(await controller.init());
+  return controller;
+}
+
+@Riverpod(keepAlive: true)
+Stream<(ConnectionStatus, BluetoothDevice?)> connectionStatus(Ref ref) {
+  // Get the (potentially still loading) BluetoothController
+  final asyncController = ref.watch(bluetoothProvider);
+
+  // If the controller is ready, return its stream. Otherwise, return an empty stream.
+  // The provider will automatically update when the controller becomes ready.
+  return asyncController.when(
+    data: (controller) => controller.connectionStateStream,
+    loading: () => Stream.value((ConnectionStatus.disconnected, null)),
+    error: (_, __) => Stream.value((ConnectionStatus.disconnected, null)),
+  );
+}
+
+/// Represents the connection status of the Bluetooth device.
+enum ConnectionStatus { disconnected, connecting, connected, disconnecting }
+
+class BluetoothController {
+  StreamSubscription<BluetoothAdapterState>? _btStateSubscription;
+  StreamSubscription<List<ScanResult>>? _scanResultsSubscription;
+  List<ScanResult> _latestScanResults = [];
+  StreamSubscription<void>? _servicesResetSubscription;
+  final Map<String, Map<Guid, BluetoothService>> _servicesByDevice = {};
+  final Map<String, Map<String, BluetoothCharacteristic>>
+      _characteristicsByDevice = {};
+  // Connection State
+  BluetoothDevice? _connectedDevice;
+  StreamSubscription<BluetoothConnectionState>? _connectionStateSubscription;
+  final _connectionStateSubject =
+      BehaviorSubject<(ConnectionStatus, BluetoothDevice?)>.seeded(
+          (ConnectionStatus.disconnected, null));
+
+  /// Stream providing the current connection status and the connected device (if any).
+  Stream<(ConnectionStatus, BluetoothDevice?)> get connectionStateStream =>
+      _connectionStateSubject.stream;
+
+  /// Gets the latest connection status and device.
+  (ConnectionStatus, BluetoothDevice?) get currentConnectionState =>
+      _connectionStateSubject.value;
+
+  Future<Result<void>> init() async {
+    log.severe("CALLED FBPON!");
+    if (await FlutterBluePlus.isSupported == false) {
+      log.severe("Bluetooth is not supported on this device!");
+      return bail("Bluetooth is not supported on this device!");
+    }
+
+    _btStateSubscription =
+        FlutterBluePlus.adapterState.listen((BluetoothAdapterState state) {
+      if (state == BluetoothAdapterState.on) {
+        log.info("Bluetooth is on!");
+        // usually start scanning, connecting, etc
+      } else {
+        log.info("Bluetooth is off!");
+        // show an error to the user, etc
+      }
+    });
+
+    if (!kIsWeb && Platform.isAndroid) {
+      await FlutterBluePlus.turnOn();
+    }
+
+    connectionStateStream.listen((state) {
+      log.info('Connection state changed: $state');
+    });
+
+    return Ok(null);
+  }
+
+  /// Start scanning for Bluetooth devices
+  ///
+  /// [withServices] - Optional list of service UUIDs to filter devices by
+  /// [withNames] - Optional list of device names to filter by
+  /// [timeout] - Optional duration after which scanning will automatically stop
+  Future<Result<void>> startScan({
+    List<Guid>? withServices,
+    List<String>? withNames,
+    Duration? timeout,
+  }) async {
+    try {
+      // Wait for Bluetooth to be enabled
+      await FlutterBluePlus.adapterState
+          .where((val) => val == BluetoothAdapterState.on)
+          .first;
+
+      // Set up scan results listener
+      _scanResultsSubscription = FlutterBluePlus.onScanResults.listen(
+        (results) {
+          if (results.isNotEmpty) {
+            _latestScanResults = results;
+            ScanResult latestResult = results.last;
+            log.info(
+                '${latestResult.device.remoteId}: "${latestResult.advertisementData.advName}" found!');
+          }
+        },
+        onError: (e) {
+          log.severe('Scan error: $e');
+        },
+      );
+
+      // Clean up subscription when scanning completes
+      FlutterBluePlus.cancelWhenScanComplete(_scanResultsSubscription!);
+
+      // Start scanning with optional parameters
+      await FlutterBluePlus.startScan(
+        withServices: withServices ?? [],
+        withNames: withNames ?? [],
+        timeout: timeout,
+      );
+
+      return Ok(null);
+    } catch (e) {
+      return bail('Failed to start Bluetooth scan: $e');
+    }
+  }
+
+  /// Stop an ongoing Bluetooth scan
+  Future<Result<void>> stopScan() async {
+    try {
+      await FlutterBluePlus.stopScan();
+      return Ok(null);
+    } catch (e) {
+      return bail('Failed to stop Bluetooth scan: $e');
+    }
+  }
+
+  /// Get the latest scan results
+  List<ScanResult> get scanResults => _latestScanResults;
+
+  /// Wait for the current scan to complete
+  Future<Result<void>> waitForScanToComplete() async {
+    try {
+      await FlutterBluePlus.isScanning.where((val) => val == false).first;
+      return Ok(null);
+    } catch (e) {
+      return bail('Error waiting for scan to complete: $e');
+    }
+  }
+
+  /// Check if currently scanning
+  Future<bool> get isScanning async {
+    return await FlutterBluePlus.isScanning.first;
+  }
+
+  /// Connects to a specific Bluetooth device.
+  ///
+  /// Ensures that only one device is connected at a time. If another device
+  /// is already connected or connecting, it will be disconnected first.
+  Future<Result<void>> connect(BluetoothDevice device,
+      {Duration? timeout}) async {
+    final currentState = currentConnectionState;
+    final currentDevice = currentState.$2;
+
+    // Prevent connecting if already connected/connecting to the *same* device
+    if (device.remoteId == currentDevice?.remoteId &&
+        (currentState.$1 == ConnectionStatus.connected ||
+            currentState.$1 == ConnectionStatus.connecting)) {
+      log.info('Currently connected device: ${currentState.$2}');
+      log.info('Already connected or connecting to ${device.remoteId}.');
+      return Ok(null); // Or potentially an error/different status?
+    }
+
+    log.info('Attempting to connect to ${device.remoteId}...');
+
+    // If connecting or connected to a *different* device, disconnect it first.
+    if (currentDevice != null && device.remoteId != currentDevice.remoteId) {
+      log.info(
+          'Disconnecting from previous device ${currentDevice.remoteId} first.');
+      final disconnectResult = await disconnect();
+      if (disconnectResult.isErr()) {
+        return disconnectResult
+            .context('Failed to disconnect from previous device');
+      }
+      // Wait a moment for the disconnection to fully process
+      await Future.delayed(const Duration(milliseconds: 500));
+    }
+
+    try {
+      // Cancel any previous connection state listener before starting a new one
+      await _connectionStateSubscription?.cancel();
+      _connectionStateSubscription =
+          device.connectionState.listen((BluetoothConnectionState state) async {
+        log.info('[${device.remoteId}] Connection state changed: $state');
+        switch (state) {
+          case BluetoothConnectionState.connected:
+            _connectedDevice = device;
+            _updateConnectionState(ConnectionStatus.connected, device);
+            // IMPORTANT: Discover services after connecting
+            try {
+              _attachServicesResetListener(device);
+              final servicesResult =
+                  await _discoverAndCacheServices(device, force: true);
+              if (servicesResult.isErr()) {
+                throw servicesResult.unwrapErr();
+              }
+              log.info(
+                  '[${device.remoteId}] Services discovered: \n${servicesResult.unwrap().map((e) => e.uuid.toString()).join('\n')}');
+            } catch (e) {
+              log.severe(
+                  '[${device.remoteId}] Error discovering services: $e. Disconnecting.');
+              // Disconnect if service discovery fails, as the connection might be unusable
+              await disconnect();
+            }
+            break;
+          case BluetoothConnectionState.disconnected:
+            if (_connectionStateSubject.value.$1 !=
+                ConnectionStatus.connected) {
+              log.warning(
+                  '[${device.remoteId}] Disconnected WITHOUT being connected! Reason: ${device.disconnectReason?.code} ${device.disconnectReason?.description}\nDoing nothing');
+              break;
+            } else {
+              log.warning(
+                  '[${device.remoteId}] Disconnected. Reason: ${device.disconnectReason?.code} ${device.disconnectReason?.description}');
+              // Only clean up if this is the device we were connected/connecting to
+              if (_connectionStateSubject.value.$2?.remoteId ==
+                  device.remoteId) {
+                // Clean up connection state, handling disconnection.
+                // In general, reconnection is better, but this is how it's handled here.
+                // App behavior would be to go back to the homepage on disconnection
+                _cleanUpConnection();
+              } else {
+                log.info(
+                    '[${device.remoteId}] Received disconnect for a device we were not tracking.');
+              }
+              break;
+            }
+          case BluetoothConnectionState.connecting:
+          case BluetoothConnectionState.disconnecting:
+            // deprecated states
+            log.warning(
+                'Received unexpected connection state: ${device.connectionState}. This should not happen.');
+            break;
+        }
+      });
+
+      await device.connect(
+        license: License.free,
+        timeout: timeout ?? const Duration(seconds: 15),
+        mtu: 512,
+      );
+
+      // Note: Success is primarily handled by the connectionState listener
+      log.info(
+          'Connection initiated for ${device.remoteId}. Waiting for state change.');
+      _connectionStateSubject.add((ConnectionStatus.connected, device));
+      return Ok(null);
+    } catch (e) {
+      log.severe('Failed to connect to ${device.remoteId}: $e');
+      _cleanUpConnection(); // Clean up state on connection failure
+      return bail('Failed to connect to ${device.remoteId}: $e');
+    }
+  }
+
+  /// Connects to a device using its remote ID string with a specific timeout.
+  Future<Result<void>> connectById(String remoteId,
+      {Duration timeout = const Duration(seconds: 10)}) async {
+    log.info('Attempting to connect by ID: $remoteId with timeout: $timeout');
+    try {
+      // Get the BluetoothDevice object from the ID
+      final device = BluetoothDevice.fromId(remoteId);
+
+      // Call the existing connect method, passing the device and timeout
+      // Assumes the 'connect' method below is modified to accept the timeout.
+      return await connect(device, timeout: timeout); // Pass timeout here
+    } catch (e, st) {
+      // Catch potential errors from fromId or during connection setup before connect() is called
+      log.severe('Error connecting by ID $remoteId: $e');
+      _cleanUpConnection(); // Ensure state is cleaned up
+      return bail('Failed to initiate connection for ID $remoteId: $e', st);
+    }
+  }
+
+  /// Disconnects from the currently connected device.
+  Future<Result<void>> disconnect() async {
+    final deviceToDisconnect =
+        _connectedDevice ?? _connectionStateSubject.value.$2;
+    if (deviceToDisconnect == null) {
+      log.info('No device is currently connected or connecting.');
+      // Ensure state is definitely disconnected if called unnecessarily
+      _cleanUpConnection();
+      return Ok(null);
+    }
+
+    log.info('Disconnecting from ${deviceToDisconnect.remoteId}...');
+    _updateConnectionState(ConnectionStatus.disconnecting, deviceToDisconnect);
+
+    try {
+      await deviceToDisconnect.disconnect();
+      log.info('Disconnect command sent to ${deviceToDisconnect.remoteId}.');
+      // State update to disconnected is handled by the connectionState listener
+      // but we call cleanup here as a safety measure in case the listener fails
+      _cleanUpConnection();
+      return Ok(null);
+    } catch (e) {
+      log.severe(
+          'Failed to disconnect from ${deviceToDisconnect.remoteId}: $e');
+      // Even on error, try to clean up the state
+      _cleanUpConnection();
+      return bail(
+          'Failed to disconnect from ${deviceToDisconnect.remoteId}: $e');
+    }
+  }
+
+  void _updateConnectionState(
+      ConnectionStatus status, BluetoothDevice? device) {
+    // Avoid emitting redundant states
+    if (_connectionStateSubject.value.$1 == status &&
+        _connectionStateSubject.value.$2?.remoteId == device?.remoteId) {
+      return;
+    }
+    _connectionStateSubject.add((status, device));
+    log.fine(
+        'Connection state updated: $status, Device: ${device?.remoteId ?? 'none'}');
+  }
+
+  Future<Result<List<BluetoothService>>> discoverServices(
+    BluetoothDevice device, {
+    bool force = false,
+  }) async {
+    return _discoverAndCacheServices(device, force: force);
+  }
+
+  Future<Result<void>> writeCharacteristic(
+    BluetoothDevice device,
+    String serviceUuid,
+    String characteristicUuid,
+    List<int> value, {
+    bool withoutResponse = false,
+    bool allowLongWrite = false,
+    int timeout = 15,
+  }) async {
+    final serviceGuid = Guid(serviceUuid);
+    final characteristicGuid = Guid(characteristicUuid);
+    final chrResult =
+        await _getCharacteristic(device, serviceGuid, characteristicGuid);
+    if (chrResult.isErr()) {
+      return chrResult.context('Failed to resolve characteristic for write');
+    }
+
+    try {
+      await chrResult.unwrap().write(
+            value,
+            withoutResponse: withoutResponse,
+            allowLongWrite: allowLongWrite,
+            timeout: timeout,
+          );
+      return Ok(null);
+    } catch (e) {
+      return bail('Error writing characteristic $characteristicUuid: $e');
+    }
+  }
+
+  Future<Result<StreamSubscription<List<int>>>> subscribeToNotifications(
+    BluetoothDevice device,
+    String serviceUuid,
+    String characteristicUuid, {
+    void Function(List<int>)? onValue,
+    bool useLastValueStream = false,
+    int timeout = 15,
+  }) async {
+    return _subscribeToCharacteristic(
+      device,
+      serviceUuid,
+      characteristicUuid,
+      useLastValueStream: useLastValueStream,
+      timeout: timeout,
+      forceIndications: false,
+      onValue: onValue,
+    );
+  }
+
+  Future<Result<StreamSubscription<List<int>>>> subscribeToIndications(
+    BluetoothDevice device,
+    String serviceUuid,
+    String characteristicUuid, {
+    void Function(List<int>)? onValue,
+    bool useLastValueStream = false,
+    int timeout = 15,
+  }) async {
+    return _subscribeToCharacteristic(
+      device,
+      serviceUuid,
+      characteristicUuid,
+      useLastValueStream: useLastValueStream,
+      timeout: timeout,
+      forceIndications: true,
+      onValue: onValue,
+    );
+  }
+
+  Future<Result<void>> unsubscribeFromCharacteristic(
+    BluetoothDevice device,
+    String serviceUuid,
+    String characteristicUuid, {
+    int timeout = 15,
+  }) async {
+    final serviceGuid = Guid(serviceUuid);
+    final characteristicGuid = Guid(characteristicUuid);
+    final chrResult =
+        await _getCharacteristic(device, serviceGuid, characteristicGuid);
+    if (chrResult.isErr()) {
+      return chrResult
+          .context('Failed to resolve characteristic to unsubscribe');
+    }
+
+    try {
+      await chrResult.unwrap().setNotifyValue(false, timeout: timeout);
+      return Ok(null);
+    } catch (e) {
+      return bail('Error disabling notifications for $characteristicUuid: $e');
+    }
+  }
+
+  /// Helper function to clean up connection resources and state.
+  Future<void> _cleanUpConnection() async {
+    log.fine('Cleaning up connection state and subscriptions.');
+    _connectedDevice = null;
+    await _servicesResetSubscription?.cancel();
+    _servicesResetSubscription = null;
+    _servicesByDevice.clear();
+    _characteristicsByDevice.clear();
+    await _connectionStateSubscription?.cancel();
+    _connectionStateSubscription = null;
+    _updateConnectionState(ConnectionStatus.disconnected, null);
+  }
+
+  Future<Result<void>> dispose() async {
+    await _scanResultsSubscription?.cancel();
+    await _btStateSubscription?.cancel();
+    await disconnect(); // Ensure disconnection on dispose
+    await _connectionStateSubject.close();
+    return Ok(null);
+  }
+
+  Future<Result<List<int>>> readCharacteristic(
+      BluetoothDevice device, String svcUuid, String characteristic) async {
+    // Implement reading characteristic logic here
+    // This is a placeholder implementation
+    log.info(
+        'Reading characteristic from device: $device, characteristic: $characteristic');
+    final serviceUUID = Guid(svcUuid);
+    final characteristicUUID = Guid(characteristic);
+
+    if (!device.servicesList.map((e) => e.uuid).contains(serviceUUID)) {
+      return bail('Service $svcUuid not found on device ${device.remoteId}');
+    }
+
+    final BluetoothService service =
+        (device.servicesList).firstWhere((s) => s.uuid == serviceUUID);
+
+    if (service.characteristics.isEmpty ||
+        !service.characteristics
+            .map((c) => c.uuid)
+            .contains(characteristicUUID)) {
+      return bail(
+          'Characteristic $characteristic not found on device ${device.remoteId}');
+    }
+
+    try {
+      final val = await service.characteristics
+          .firstWhere((c) => c.uuid == characteristicUUID)
+          .read();
+      return Ok(val);
+    } catch (e) {
+      return bail('Error reading characteristic: $e');
+    }
+  }
+
+  String _deviceKey(BluetoothDevice device) => device.remoteId.str;
+
+  String _characteristicKey(Guid serviceUuid, Guid characteristicUuid) =>
+      '${serviceUuid.toString()}|${characteristicUuid.toString()}';
+
+  void _cacheServices(BluetoothDevice device, List<BluetoothService> services) {
+    final serviceMap = <Guid, BluetoothService>{};
+    final characteristicMap = <String, BluetoothCharacteristic>{};
+
+    for (final service in services) {
+      serviceMap[service.uuid] = service;
+      for (final chr in service.characteristics) {
+        characteristicMap[_characteristicKey(service.uuid, chr.uuid)] = chr;
+      }
+    }
+
+    _servicesByDevice[_deviceKey(device)] = serviceMap;
+    _characteristicsByDevice[_deviceKey(device)] = characteristicMap;
+  }
+
+  void _attachServicesResetListener(BluetoothDevice device) {
+    _servicesResetSubscription?.cancel();
+    _servicesResetSubscription = device.onServicesReset.listen((_) async {
+      log.info('[${device.remoteId}] Services reset. Re-discovering.');
+      final res = await _discoverAndCacheServices(device, force: true);
+      if (res.isErr()) {
+        log.severe(
+            '[${device.remoteId}] Failed to re-discover services: ${res.unwrapErr()}');
+      }
+    });
+    device.cancelWhenDisconnected(_servicesResetSubscription!);
+  }
+
+  Future<Result<List<BluetoothService>>> _discoverAndCacheServices(
+    BluetoothDevice device, {
+    bool force = false,
+  }) async {
+    try {
+      if (!force) {
+        final cached = _servicesByDevice[_deviceKey(device)];
+        if (cached != null && cached.isNotEmpty) {
+          return Ok(cached.values.toList());
+        }
+      }
+      if (!force && device.servicesList.isNotEmpty) {
+        _cacheServices(device, device.servicesList);
+        return Ok(device.servicesList);
+      }
+
+      final services = await device.discoverServices();
+      _cacheServices(device, services);
+      return Ok(services);
+    } catch (e) {
+      return bail('Failed to discover services for ${device.remoteId}: $e');
+    }
+  }
+
+  Future<Result<BluetoothCharacteristic>> _getCharacteristic(
+    BluetoothDevice device,
+    Guid serviceUuid,
+    Guid characteristicUuid,
+  ) async {
+    final deviceKey = _deviceKey(device);
+    final cached = _characteristicsByDevice[deviceKey]
+        ?[_characteristicKey(serviceUuid, characteristicUuid)];
+    if (cached != null) {
+      return Ok(cached);
+    }
+
+    final discoverResult = await _discoverAndCacheServices(device);
+    if (discoverResult.isErr()) {
+      return bail(discoverResult.unwrapErr().toString());
+    }
+
+    final refreshed = _characteristicsByDevice[deviceKey]
+        ?[_characteristicKey(serviceUuid, characteristicUuid)];
+    if (refreshed == null) {
+      return bail(
+          'Characteristic $characteristicUuid not found on service $serviceUuid for device ${device.remoteId}');
+    }
+
+    return Ok(refreshed);
+  }
+
+  Future<Result<StreamSubscription<List<int>>>> _subscribeToCharacteristic(
+    BluetoothDevice device,
+    String serviceUuid,
+    String characteristicUuid, {
+    required bool forceIndications,
+    required bool useLastValueStream,
+    required int timeout,
+    void Function(List<int>)? onValue,
+  }) async {
+    final serviceGuid = Guid(serviceUuid);
+    final characteristicGuid = Guid(characteristicUuid);
+    final chrResult =
+        await _getCharacteristic(device, serviceGuid, characteristicGuid);
+    if (chrResult.isErr()) {
+      return bail('Failed to resolve characteristic subscription: '
+          '${chrResult.unwrapErr()}');
+    }
+
+    final characteristic = chrResult.unwrap();
+    final properties = characteristic.properties;
+    if (forceIndications && !properties.indicate) {
+      return bail(
+          'Characteristic $characteristicUuid does not support indications');
+    }
+    if (!forceIndications && !properties.notify && !properties.indicate) {
+      return bail(
+          'Characteristic $characteristicUuid does not support notifications');
+    }
+    if (forceIndications && !kIsWeb && !Platform.isAndroid) {
+      return bail('Indications can only be forced on Android.');
+    }
+
+    try {
+      final stream = useLastValueStream
+          ? characteristic.lastValueStream
+          : characteristic.onValueReceived;
+      final subscription = stream.listen(onValue ?? (_) {});
+      device.cancelWhenDisconnected(subscription);
+
+      await characteristic.setNotifyValue(
+        true,
+        timeout: timeout,
+        forceIndications: forceIndications,
+      );
+
+      return Ok(subscription);
+    } catch (e) {
+      return bail(
+          'Error subscribing to characteristic $characteristicUuid: $e');
+    }
+  }
+}

lib/controller/connected_device.dart

@@ -0,0 +1 @@
+

lib/database/database.dart

@@ -0,0 +1,143 @@
+import 'package:anyhow/anyhow.dart';
+import 'package:drift/drift.dart';
+import 'package:drift_flutter/drift_flutter.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'database.g.dart';
+
+@riverpod
+class NConnectedDevices extends _$NConnectedDevices {
+  @override
+  Future<List<ConnectedDevice>> build() async {
+    final db = await ref.watch(databaseProvider);
+    return await db.getAllConnectedDevices();
+  }
+
+  Future<Result<int>> addConnectedDevice(
+      ConnectedDevicesCompanion device) async {
+    final db = await ref.watch(databaseProvider);
+    final res = await db.addConnectedDevice(device);
+    if (res.isOk()) {
+      ref.invalidateSelf();
+    }
+    return res;
+  }
+
+  Future<Result<void>> deleteConnectedDevice(int id) async {
+    final db = await ref.watch(databaseProvider);
+    final res = await db.deleteConnectedDevice(id);
+    if (res.isOk()) {
+      ref.invalidateSelf();
+    }
+    return res;
+  }
+}
+
+/// Provider for the [AppDatabase] instance
+final databaseProvider = Provider<AppDatabase>((ref) {
+  final database = AppDatabase();
+  ref.onDispose(() => database.close());
+  return database;
+});
+
+/// Provider for all connected devices as a stream
+final connectedDevicesStreamProvider =
+    StreamProvider<List<ConnectedDevice>>((ref) {
+  final database = ref.watch(databaseProvider);
+  return database.getAllConnectedDevicesStream();
+});
+
+/// Provider for all connected devices as a future
+final connectedDevicesProvider = FutureProvider<List<ConnectedDevice>>((ref) {
+  final database = ref.watch(databaseProvider);
+  return database.getAllConnectedDevices();
+});
+
+class ConnectedDevices extends Table {
+  IntColumn get id => integer().autoIncrement()();
+  TextColumn get deviceName => text()();
+  TextColumn get deviceAddress => text()();
+  TextColumn get deviceType => text()();
+  DateTimeColumn get createdAt => dateTime().withDefault(currentDateAndTime)();
+  DateTimeColumn get lastConnectedAt => dateTime().nullable()();
+}
+
+@DriftDatabase(tables: [ConnectedDevices])
+class AppDatabase extends _$AppDatabase {
+  // After generating code, this class needs to define a `schemaVersion` getter
+  // and a constructor telling drift where the database should be stored.
+  // These are described in the getting started guide: https://drift.simonbinder.eu/setup/
+  AppDatabase([QueryExecutor? executor]) : super(executor ?? _openConnection());
+
+  @override
+  int get schemaVersion => 1;
+
+  static QueryExecutor _openConnection() {
+    return driftDatabase(
+      name: 'my_database',
+      native: const DriftNativeOptions(
+        // By default, `driftDatabase` from `package:drift_flutter` stores the
+        // database files in `getApplicationDocumentsDirectory()`.
+        databaseDirectory: getApplicationSupportDirectory,
+      ),
+      // If you need web support, see https://drift.simonbinder.eu/platforms/web/
+    );
+  }
+
+  Future<List<ConnectedDevice>> getAllConnectedDevices() {
+    return select(connectedDevices).get();
+  }
+
+  /// Adds a new connected device to the database.
+  ///
+  /// [device] is a [ConnectedDevicesCompanion] representing the device to be inserted.
+  ///
+  /// Returns a [Result] indicating success or failure of the device insertion.
+  /// On successful insertion, returns [Ok]\(rowid\). On failure, returns an error with a descriptive message.
+  Future<Result<int>> addConnectedDevice(
+      ConnectedDevicesCompanion device) async {
+    try {
+      if (!device.deviceAddress.present) {
+        return bail('Device address is required to save a connected device.');
+      }
+
+      final exists = await (select(connectedDevices)
+            ..where(
+                (tbl) => tbl.deviceAddress.equals(device.deviceAddress.value)))
+          .getSingleOrNull();
+      if (exists != null) {
+        return bail('Device ${device.deviceAddress.value} is already added.');
+      }
+
+      final rowid = await into(connectedDevices).insert(device);
+      return Ok(rowid);
+    } catch (e, st) {
+      return bail('Failed to add device: $e', st);
+    }
+  }
+
+  /// Deletes a connected device from the database by its ID.
+  ///
+  /// [id] is the ID of the device to be deleted.
+  ///
+  /// Returns a [Result] indicating success or failure of the deletion.
+  /// On successful deletion, returns [Ok](number of deleted rows). On failure, returns an error with a descriptive message.
+  Future<Result<void>> deleteConnectedDevice(int id) async {
+    try {
+      final count = await (delete(connectedDevices)
+            ..where((tbl) => tbl.id.equals(id)))
+          .go();
+      if (count == 0) {
+        return bail('Device with id $id not found.');
+      }
+      return Ok(());
+    } catch (e, st) {
+      return bail('Failed to delete device with id $id: $e', st);
+    }
+  }
+
+  Stream<List<ConnectedDevice>> getAllConnectedDevicesStream() {
+    return select(connectedDevices).watch();
+  }
+}

lib/database/database.g.dart

@@ -0,0 +1,586 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'database.dart';
+
+// ignore_for_file: type=lint
+class $ConnectedDevicesTable extends ConnectedDevices
+    with TableInfo<$ConnectedDevicesTable, ConnectedDevice> {
+  @override
+  final GeneratedDatabase attachedDatabase;
+  final String? _alias;
+  $ConnectedDevicesTable(this.attachedDatabase, [this._alias]);
+  static const VerificationMeta _idMeta = const VerificationMeta('id');
+  @override
+  late final GeneratedColumn<int> id = GeneratedColumn<int>(
+      'id', aliasedName, false,
+      hasAutoIncrement: true,
+      type: DriftSqlType.int,
+      requiredDuringInsert: false,
+      defaultConstraints:
+          GeneratedColumn.constraintIsAlways('PRIMARY KEY AUTOINCREMENT'));
+  static const VerificationMeta _deviceNameMeta =
+      const VerificationMeta('deviceName');
+  @override
+  late final GeneratedColumn<String> deviceName = GeneratedColumn<String>(
+      'device_name', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  static const VerificationMeta _deviceAddressMeta =
+      const VerificationMeta('deviceAddress');
+  @override
+  late final GeneratedColumn<String> deviceAddress = GeneratedColumn<String>(
+      'device_address', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  static const VerificationMeta _deviceTypeMeta =
+      const VerificationMeta('deviceType');
+  @override
+  late final GeneratedColumn<String> deviceType = GeneratedColumn<String>(
+      'device_type', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  static const VerificationMeta _createdAtMeta =
+      const VerificationMeta('createdAt');
+  @override
+  late final GeneratedColumn<DateTime> createdAt = GeneratedColumn<DateTime>(
+      'created_at', aliasedName, false,
+      type: DriftSqlType.dateTime,
+      requiredDuringInsert: false,
+      defaultValue: currentDateAndTime);
+  static const VerificationMeta _lastConnectedAtMeta =
+      const VerificationMeta('lastConnectedAt');
+  @override
+  late final GeneratedColumn<DateTime> lastConnectedAt =
+      GeneratedColumn<DateTime>('last_connected_at', aliasedName, true,
+          type: DriftSqlType.dateTime, requiredDuringInsert: false);
+  @override
+  List<GeneratedColumn> get $columns =>
+      [id, deviceName, deviceAddress, deviceType, createdAt, lastConnectedAt];
+  @override
+  String get aliasedName => _alias ?? actualTableName;
+  @override
+  String get actualTableName => $name;
+  static const String $name = 'connected_devices';
+  @override
+  VerificationContext validateIntegrity(Insertable<ConnectedDevice> instance,
+      {bool isInserting = false}) {
+    final context = VerificationContext();
+    final data = instance.toColumns(true);
+    if (data.containsKey('id')) {
+      context.handle(_idMeta, id.isAcceptableOrUnknown(data['id']!, _idMeta));
+    }
+    if (data.containsKey('device_name')) {
+      context.handle(
+          _deviceNameMeta,
+          deviceName.isAcceptableOrUnknown(
+              data['device_name']!, _deviceNameMeta));
+    } else if (isInserting) {
+      context.missing(_deviceNameMeta);
+    }
+    if (data.containsKey('device_address')) {
+      context.handle(
+          _deviceAddressMeta,
+          deviceAddress.isAcceptableOrUnknown(
+              data['device_address']!, _deviceAddressMeta));
+    } else if (isInserting) {
+      context.missing(_deviceAddressMeta);
+    }
+    if (data.containsKey('device_type')) {
+      context.handle(
+          _deviceTypeMeta,
+          deviceType.isAcceptableOrUnknown(
+              data['device_type']!, _deviceTypeMeta));
+    } else if (isInserting) {
+      context.missing(_deviceTypeMeta);
+    }
+    if (data.containsKey('created_at')) {
+      context.handle(_createdAtMeta,
+          createdAt.isAcceptableOrUnknown(data['created_at']!, _createdAtMeta));
+    }
+    if (data.containsKey('last_connected_at')) {
+      context.handle(
+          _lastConnectedAtMeta,
+          lastConnectedAt.isAcceptableOrUnknown(
+              data['last_connected_at']!, _lastConnectedAtMeta));
+    }
+    return context;
+  }
+
+  @override
+  Set<GeneratedColumn> get $primaryKey => {id};
+  @override
+  ConnectedDevice map(Map<String, dynamic> data, {String? tablePrefix}) {
+    final effectivePrefix = tablePrefix != null ? '$tablePrefix.' : '';
+    return ConnectedDevice(
+      id: attachedDatabase.typeMapping
+          .read(DriftSqlType.int, data['${effectivePrefix}id'])!,
+      deviceName: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}device_name'])!,
+      deviceAddress: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}device_address'])!,
+      deviceType: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}device_type'])!,
+      createdAt: attachedDatabase.typeMapping
+          .read(DriftSqlType.dateTime, data['${effectivePrefix}created_at'])!,
+      lastConnectedAt: attachedDatabase.typeMapping.read(
+          DriftSqlType.dateTime, data['${effectivePrefix}last_connected_at']),
+    );
+  }
+
+  @override
+  $ConnectedDevicesTable createAlias(String alias) {
+    return $ConnectedDevicesTable(attachedDatabase, alias);
+  }
+}
+
+class ConnectedDevice extends DataClass implements Insertable<ConnectedDevice> {
+  final int id;
+  final String deviceName;
+  final String deviceAddress;
+  final String deviceType;
+  final DateTime createdAt;
+  final DateTime? lastConnectedAt;
+  const ConnectedDevice(
+      {required this.id,
+      required this.deviceName,
+      required this.deviceAddress,
+      required this.deviceType,
+      required this.createdAt,
+      this.lastConnectedAt});
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    map['id'] = Variable<int>(id);
+    map['device_name'] = Variable<String>(deviceName);
+    map['device_address'] = Variable<String>(deviceAddress);
+    map['device_type'] = Variable<String>(deviceType);
+    map['created_at'] = Variable<DateTime>(createdAt);
+    if (!nullToAbsent || lastConnectedAt != null) {
+      map['last_connected_at'] = Variable<DateTime>(lastConnectedAt);
+    }
+    return map;
+  }
+
+  ConnectedDevicesCompanion toCompanion(bool nullToAbsent) {
+    return ConnectedDevicesCompanion(
+      id: Value(id),
+      deviceName: Value(deviceName),
+      deviceAddress: Value(deviceAddress),
+      deviceType: Value(deviceType),
+      createdAt: Value(createdAt),
+      lastConnectedAt: lastConnectedAt == null && nullToAbsent
+          ? const Value.absent()
+          : Value(lastConnectedAt),
+    );
+  }
+
+  factory ConnectedDevice.fromJson(Map<String, dynamic> json,
+      {ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return ConnectedDevice(
+      id: serializer.fromJson<int>(json['id']),
+      deviceName: serializer.fromJson<String>(json['deviceName']),
+      deviceAddress: serializer.fromJson<String>(json['deviceAddress']),
+      deviceType: serializer.fromJson<String>(json['deviceType']),
+      createdAt: serializer.fromJson<DateTime>(json['createdAt']),
+      lastConnectedAt: serializer.fromJson<DateTime?>(json['lastConnectedAt']),
+    );
+  }
+  @override
+  Map<String, dynamic> toJson({ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return <String, dynamic>{
+      'id': serializer.toJson<int>(id),
+      'deviceName': serializer.toJson<String>(deviceName),
+      'deviceAddress': serializer.toJson<String>(deviceAddress),
+      'deviceType': serializer.toJson<String>(deviceType),
+      'createdAt': serializer.toJson<DateTime>(createdAt),
+      'lastConnectedAt': serializer.toJson<DateTime?>(lastConnectedAt),
+    };
+  }
+
+  ConnectedDevice copyWith(
+          {int? id,
+          String? deviceName,
+          String? deviceAddress,
+          String? deviceType,
+          DateTime? createdAt,
+          Value<DateTime?> lastConnectedAt = const Value.absent()}) =>
+      ConnectedDevice(
+        id: id ?? this.id,
+        deviceName: deviceName ?? this.deviceName,
+        deviceAddress: deviceAddress ?? this.deviceAddress,
+        deviceType: deviceType ?? this.deviceType,
+        createdAt: createdAt ?? this.createdAt,
+        lastConnectedAt: lastConnectedAt.present
+            ? lastConnectedAt.value
+            : this.lastConnectedAt,
+      );
+  ConnectedDevice copyWithCompanion(ConnectedDevicesCompanion data) {
+    return ConnectedDevice(
+      id: data.id.present ? data.id.value : this.id,
+      deviceName:
+          data.deviceName.present ? data.deviceName.value : this.deviceName,
+      deviceAddress: data.deviceAddress.present
+          ? data.deviceAddress.value
+          : this.deviceAddress,
+      deviceType:
+          data.deviceType.present ? data.deviceType.value : this.deviceType,
+      createdAt: data.createdAt.present ? data.createdAt.value : this.createdAt,
+      lastConnectedAt: data.lastConnectedAt.present
+          ? data.lastConnectedAt.value
+          : this.lastConnectedAt,
+    );
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('ConnectedDevice(')
+          ..write('id: $id, ')
+          ..write('deviceName: $deviceName, ')
+          ..write('deviceAddress: $deviceAddress, ')
+          ..write('deviceType: $deviceType, ')
+          ..write('createdAt: $createdAt, ')
+          ..write('lastConnectedAt: $lastConnectedAt')
+          ..write(')'))
+        .toString();
+  }
+
+  @override
+  int get hashCode => Object.hash(
+      id, deviceName, deviceAddress, deviceType, createdAt, lastConnectedAt);
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      (other is ConnectedDevice &&
+          other.id == this.id &&
+          other.deviceName == this.deviceName &&
+          other.deviceAddress == this.deviceAddress &&
+          other.deviceType == this.deviceType &&
+          other.createdAt == this.createdAt &&
+          other.lastConnectedAt == this.lastConnectedAt);
+}
+
+class ConnectedDevicesCompanion extends UpdateCompanion<ConnectedDevice> {
+  final Value<int> id;
+  final Value<String> deviceName;
+  final Value<String> deviceAddress;
+  final Value<String> deviceType;
+  final Value<DateTime> createdAt;
+  final Value<DateTime?> lastConnectedAt;
+  const ConnectedDevicesCompanion({
+    this.id = const Value.absent(),
+    this.deviceName = const Value.absent(),
+    this.deviceAddress = const Value.absent(),
+    this.deviceType = const Value.absent(),
+    this.createdAt = const Value.absent(),
+    this.lastConnectedAt = const Value.absent(),
+  });
+  ConnectedDevicesCompanion.insert({
+    this.id = const Value.absent(),
+    required String deviceName,
+    required String deviceAddress,
+    required String deviceType,
+    this.createdAt = const Value.absent(),
+    this.lastConnectedAt = const Value.absent(),
+  })  : deviceName = Value(deviceName),
+        deviceAddress = Value(deviceAddress),
+        deviceType = Value(deviceType);
+  static Insertable<ConnectedDevice> custom({
+    Expression<int>? id,
+    Expression<String>? deviceName,
+    Expression<String>? deviceAddress,
+    Expression<String>? deviceType,
+    Expression<DateTime>? createdAt,
+    Expression<DateTime>? lastConnectedAt,
+  }) {
+    return RawValuesInsertable({
+      if (id != null) 'id': id,
+      if (deviceName != null) 'device_name': deviceName,
+      if (deviceAddress != null) 'device_address': deviceAddress,
+      if (deviceType != null) 'device_type': deviceType,
+      if (createdAt != null) 'created_at': createdAt,
+      if (lastConnectedAt != null) 'last_connected_at': lastConnectedAt,
+    });
+  }
+
+  ConnectedDevicesCompanion copyWith(
+      {Value<int>? id,
+      Value<String>? deviceName,
+      Value<String>? deviceAddress,
+      Value<String>? deviceType,
+      Value<DateTime>? createdAt,
+      Value<DateTime?>? lastConnectedAt}) {
+    return ConnectedDevicesCompanion(
+      id: id ?? this.id,
+      deviceName: deviceName ?? this.deviceName,
+      deviceAddress: deviceAddress ?? this.deviceAddress,
+      deviceType: deviceType ?? this.deviceType,
+      createdAt: createdAt ?? this.createdAt,
+      lastConnectedAt: lastConnectedAt ?? this.lastConnectedAt,
+    );
+  }
+
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    if (id.present) {
+      map['id'] = Variable<int>(id.value);
+    }
+    if (deviceName.present) {
+      map['device_name'] = Variable<String>(deviceName.value);
+    }
+    if (deviceAddress.present) {
+      map['device_address'] = Variable<String>(deviceAddress.value);
+    }
+    if (deviceType.present) {
+      map['device_type'] = Variable<String>(deviceType.value);
+    }
+    if (createdAt.present) {
+      map['created_at'] = Variable<DateTime>(createdAt.value);
+    }
+    if (lastConnectedAt.present) {
+      map['last_connected_at'] = Variable<DateTime>(lastConnectedAt.value);
+    }
+    return map;
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('ConnectedDevicesCompanion(')
+          ..write('id: $id, ')
+          ..write('deviceName: $deviceName, ')
+          ..write('deviceAddress: $deviceAddress, ')
+          ..write('deviceType: $deviceType, ')
+          ..write('createdAt: $createdAt, ')
+          ..write('lastConnectedAt: $lastConnectedAt')
+          ..write(')'))
+        .toString();
+  }
+}
+
+abstract class _$AppDatabase extends GeneratedDatabase {
+  _$AppDatabase(QueryExecutor e) : super(e);
+  $AppDatabaseManager get managers => $AppDatabaseManager(this);
+  late final $ConnectedDevicesTable connectedDevices =
+      $ConnectedDevicesTable(this);
+  @override
+  Iterable<TableInfo<Table, Object?>> get allTables =>
+      allSchemaEntities.whereType<TableInfo<Table, Object?>>();
+  @override
+  List<DatabaseSchemaEntity> get allSchemaEntities => [connectedDevices];
+}
+
+typedef $$ConnectedDevicesTableCreateCompanionBuilder
+    = ConnectedDevicesCompanion Function({
+  Value<int> id,
+  required String deviceName,
+  required String deviceAddress,
+  required String deviceType,
+  Value<DateTime> createdAt,
+  Value<DateTime?> lastConnectedAt,
+});
+typedef $$ConnectedDevicesTableUpdateCompanionBuilder
+    = ConnectedDevicesCompanion Function({
+  Value<int> id,
+  Value<String> deviceName,
+  Value<String> deviceAddress,
+  Value<String> deviceType,
+  Value<DateTime> createdAt,
+  Value<DateTime?> lastConnectedAt,
+});
+
+class $$ConnectedDevicesTableFilterComposer
+    extends Composer<_$AppDatabase, $ConnectedDevicesTable> {
+  $$ConnectedDevicesTableFilterComposer({
+    required super.$db,
+    required super.$table,
+    super.joinBuilder,
+    super.$addJoinBuilderToRootComposer,
+    super.$removeJoinBuilderFromRootComposer,
+  });
+  ColumnFilters<int> get id => $composableBuilder(
+      column: $table.id, builder: (column) => ColumnFilters(column));
+
+  ColumnFilters<String> get deviceName => $composableBuilder(
+      column: $table.deviceName, builder: (column) => ColumnFilters(column));
+
+  ColumnFilters<String> get deviceAddress => $composableBuilder(
+      column: $table.deviceAddress, builder: (column) => ColumnFilters(column));
+
+  ColumnFilters<String> get deviceType => $composableBuilder(
+      column: $table.deviceType, builder: (column) => ColumnFilters(column));
+
+  ColumnFilters<DateTime> get createdAt => $composableBuilder(
+      column: $table.createdAt, builder: (column) => ColumnFilters(column));
+
+  ColumnFilters<DateTime> get lastConnectedAt => $composableBuilder(
+      column: $table.lastConnectedAt,
+      builder: (column) => ColumnFilters(column));
+}
+
+class $$ConnectedDevicesTableOrderingComposer
+    extends Composer<_$AppDatabase, $ConnectedDevicesTable> {
+  $$ConnectedDevicesTableOrderingComposer({
+    required super.$db,
+    required super.$table,
+    super.joinBuilder,
+    super.$addJoinBuilderToRootComposer,
+    super.$removeJoinBuilderFromRootComposer,
+  });
+  ColumnOrderings<int> get id => $composableBuilder(
+      column: $table.id, builder: (column) => ColumnOrderings(column));
+
+  ColumnOrderings<String> get deviceName => $composableBuilder(
+      column: $table.deviceName, builder: (column) => ColumnOrderings(column));
+
+  ColumnOrderings<String> get deviceAddress => $composableBuilder(
+      column: $table.deviceAddress,
+      builder: (column) => ColumnOrderings(column));
+
+  ColumnOrderings<String> get deviceType => $composableBuilder(
+      column: $table.deviceType, builder: (column) => ColumnOrderings(column));
+
+  ColumnOrderings<DateTime> get createdAt => $composableBuilder(
+      column: $table.createdAt, builder: (column) => ColumnOrderings(column));
+
+  ColumnOrderings<DateTime> get lastConnectedAt => $composableBuilder(
+      column: $table.lastConnectedAt,
+      builder: (column) => ColumnOrderings(column));
+}
+
+class $$ConnectedDevicesTableAnnotationComposer
+    extends Composer<_$AppDatabase, $ConnectedDevicesTable> {
+  $$ConnectedDevicesTableAnnotationComposer({
+    required super.$db,
+    required super.$table,
+    super.joinBuilder,
+    super.$addJoinBuilderToRootComposer,
+    super.$removeJoinBuilderFromRootComposer,
+  });
+  GeneratedColumn<int> get id =>
+      $composableBuilder(column: $table.id, builder: (column) => column);
+
+  GeneratedColumn<String> get deviceName => $composableBuilder(
+      column: $table.deviceName, builder: (column) => column);
+
+  GeneratedColumn<String> get deviceAddress => $composableBuilder(
+      column: $table.deviceAddress, builder: (column) => column);
+
+  GeneratedColumn<String> get deviceType => $composableBuilder(
+      column: $table.deviceType, builder: (column) => column);
+
+  GeneratedColumn<DateTime> get createdAt =>
+      $composableBuilder(column: $table.createdAt, builder: (column) => column);
+
+  GeneratedColumn<DateTime> get lastConnectedAt => $composableBuilder(
+      column: $table.lastConnectedAt, builder: (column) => column);
+}
+
+class $$ConnectedDevicesTableTableManager extends RootTableManager<
+    _$AppDatabase,
+    $ConnectedDevicesTable,
+    ConnectedDevice,
+    $$ConnectedDevicesTableFilterComposer,
+    $$ConnectedDevicesTableOrderingComposer,
+    $$ConnectedDevicesTableAnnotationComposer,
+    $$ConnectedDevicesTableCreateCompanionBuilder,
+    $$ConnectedDevicesTableUpdateCompanionBuilder,
+    (
+      ConnectedDevice,
+      BaseReferences<_$AppDatabase, $ConnectedDevicesTable, ConnectedDevice>
+    ),
+    ConnectedDevice,
+    PrefetchHooks Function()> {
+  $$ConnectedDevicesTableTableManager(
+      _$AppDatabase db, $ConnectedDevicesTable table)
+      : super(TableManagerState(
+          db: db,
+          table: table,
+          createFilteringComposer: () =>
+              $$ConnectedDevicesTableFilterComposer($db: db, $table: table),
+          createOrderingComposer: () =>
+              $$ConnectedDevicesTableOrderingComposer($db: db, $table: table),
+          createComputedFieldComposer: () =>
+              $$ConnectedDevicesTableAnnotationComposer($db: db, $table: table),
+          updateCompanionCallback: ({
+            Value<int> id = const Value.absent(),
+            Value<String> deviceName = const Value.absent(),
+            Value<String> deviceAddress = const Value.absent(),
+            Value<String> deviceType = const Value.absent(),
+            Value<DateTime> createdAt = const Value.absent(),
+            Value<DateTime?> lastConnectedAt = const Value.absent(),
+          }) =>
+              ConnectedDevicesCompanion(
+            id: id,
+            deviceName: deviceName,
+            deviceAddress: deviceAddress,
+            deviceType: deviceType,
+            createdAt: createdAt,
+            lastConnectedAt: lastConnectedAt,
+          ),
+          createCompanionCallback: ({
+            Value<int> id = const Value.absent(),
+            required String deviceName,
+            required String deviceAddress,
+            required String deviceType,
+            Value<DateTime> createdAt = const Value.absent(),
+            Value<DateTime?> lastConnectedAt = const Value.absent(),
+          }) =>
+              ConnectedDevicesCompanion.insert(
+            id: id,
+            deviceName: deviceName,
+            deviceAddress: deviceAddress,
+            deviceType: deviceType,
+            createdAt: createdAt,
+            lastConnectedAt: lastConnectedAt,
+          ),
+          withReferenceMapper: (p0) => p0
+              .map((e) => (e.readTable(table), BaseReferences(db, table, e)))
+              .toList(),
+          prefetchHooksCallback: null,
+        ));
+}
+
+typedef $$ConnectedDevicesTableProcessedTableManager = ProcessedTableManager<
+    _$AppDatabase,
+    $ConnectedDevicesTable,
+    ConnectedDevice,
+    $$ConnectedDevicesTableFilterComposer,
+    $$ConnectedDevicesTableOrderingComposer,
+    $$ConnectedDevicesTableAnnotationComposer,
+    $$ConnectedDevicesTableCreateCompanionBuilder,
+    $$ConnectedDevicesTableUpdateCompanionBuilder,
+    (
+      ConnectedDevice,
+      BaseReferences<_$AppDatabase, $ConnectedDevicesTable, ConnectedDevice>
+    ),
+    ConnectedDevice,
+    PrefetchHooks Function()>;
+
+class $AppDatabaseManager {
+  final _$AppDatabase _db;
+  $AppDatabaseManager(this._db);
+  $$ConnectedDevicesTableTableManager get connectedDevices =>
+      $$ConnectedDevicesTableTableManager(_db, _db.connectedDevices);
+}
+
+// **************************************************************************
+// RiverpodGenerator
+// **************************************************************************
+
+String _$nConnectedDevicesHash() => r'022e744d950bb37c1016266064639e51ce6031b5';
+
+/// See also [NConnectedDevices].
+@ProviderFor(NConnectedDevices)
+final nConnectedDevicesProvider = AutoDisposeAsyncNotifierProvider<
+    NConnectedDevices, List<ConnectedDevice>>.internal(
+  NConnectedDevices.new,
+  name: r'nConnectedDevicesProvider',
+  debugGetCreateSourceHash: const bool.fromEnvironment('dart.vm.product')
+      ? null
+      : _$nConnectedDevicesHash,
+  dependencies: null,
+  allTransitiveDependencies: null,
+);
+
+typedef _$NConnectedDevices = AutoDisposeAsyncNotifier<List<ConnectedDevice>>;
+// ignore_for_file: type=lint
+// ignore_for_file: subtype_of_sealed_class, invalid_use_of_internal_member, invalid_use_of_visible_for_testing_member, deprecated_member_use_from_same_package

lib/main.dart

@@ -1,19 +1,23 @@
 import 'package:abawo_bt_app/pages/devices_page.dart';
+import 'package:abawo_bt_app/src/rust/frb_generated.dart';
 import 'package:abawo_bt_app/util/sharedPrefs.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
 import 'package:logging/logging.dart';
-import 'package:shared_preferences/shared_preferences.dart';
+import 'package:nb_utils/nb_utils.dart';
 import 'pages/home_page.dart';
 import 'pages/settings_page.dart';
+import 'package:abawo_bt_app/pages/device_details_page.dart';
 
 Future<void> main() async {
   Logger.root.level = Level.ALL; // defaults to Level.INFO
   Logger.root.onRecord.listen((record) {
     print('${record.level.name}: ${record.time}: ${record.message}');
   });
+  await RustLib.init();
   WidgetsFlutterBinding.ensureInitialized();
+  await initialize();
 
   final prefs = await SharedPreferences.getInstance();
 
@@ -49,6 +53,7 @@ class AbawoBtApp extends StatelessWidget {
 
 // Configure GoRouter
 final _router = GoRouter(
+  navigatorKey: navigatorKey,
   initialLocation: '/',
   routes: [
     GoRoute(
@@ -65,5 +70,42 @@ final _router = GoRouter(
         )
       ],
     ),
+    GoRoute(
+      path: '/device/:deviceAddress',
+      builder: (context, state) {
+        final deviceAddress = state.pathParameters['deviceAddress']!;
+        return DeviceDetailsPage(deviceAddress: deviceAddress);
+      },
+    ),
   ],
 );
+
+/*
+
+import 'package:flutter/material.dart';
+import 'package:abawo_bt_app/src/rust/api/simple.dart';
+import 'package:abawo_bt_app/src/rust/frb_generated.dart';
+
+Future<void> main() async {
+  await RustLib.init();
+  runApp(const MyApp());
+}
+
+class MyApp extends StatelessWidget {
+  const MyApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        appBar: AppBar(title: const Text('flutter_rust_bridge quickstart')),
+        body: Center(
+          child: Text(
+              'Action: Call Rust `greet("Tom")`\nResult: `${greet(name: "Tom")}`'),
+        ),
+      ),
+    );
+  }
+}
+
+*/

lib/model/bluetooth_device_model.dart

@@ -1,3 +1,6 @@
+import 'package:abawo_bt_app/util/constants.dart';
+import 'package:flutter_blue_plus/flutter_blue_plus.dart' show DeviceIdentifier;
+import 'package:flutter_reactive_ble/flutter_reactive_ble.dart';
 import 'package:freezed_annotation/freezed_annotation.dart';
 
 part 'bluetooth_device_model.freezed.dart';
@@ -12,6 +15,24 @@ enum DeviceType {
   other,
 }
 
+DeviceType deviceTypeFromUuids(List<Uuid> uuids) {
+  if (uuids.any((uuid) => isAbawoUniversalShiftersDeviceGuid(uuid))) {
+    return DeviceType.universalShifters;
+  }
+  return DeviceType.other;
+}
+
+DeviceType deviceTypeFromString(String type) {
+  return DeviceType.values.firstWhere(
+    (e) => e.toString().split('.').last == type,
+    orElse: () => DeviceType.other,
+  );
+}
+
+String deviceTypeToString(DeviceType type) {
+  return type.toString().split('.').last;
+}
+
 /// Model representing a Bluetooth device
 @freezed
 abstract class BluetoothDeviceModel with _$BluetoothDeviceModel {
@@ -25,23 +46,28 @@ abstract class BluetoothDeviceModel with _$BluetoothDeviceModel {
     /// MAC address of the device
     required String address,
 
-    /// Signal strength indicator (RSSI)
-    int? rssi,
-
     /// Type of the device
     @Default(DeviceType.other) DeviceType type,
 
-    /// Whether the device is currently connected
-    @Default(false) bool isConnected,
-
     /// Additional device information
     Map<String, dynamic>? manufacturerData,
 
-    /// Service UUIDs advertised by the device
+    /// Identifier of the device
-    List<String>? serviceUuids,
+    @DeviceIdentJsonConverter() required DeviceIdentifier deviceIdent,
   }) = _BluetoothDeviceModel;
 
   /// Create a BluetoothDeviceModel from JSON
   factory BluetoothDeviceModel.fromJson(Map<String, dynamic> json) =>
       _$BluetoothDeviceModelFromJson(json);
 }
+
+class DeviceIdentJsonConverter
+    implements JsonConverter<DeviceIdentifier, String> {
+  const DeviceIdentJsonConverter();
+
+  @override
+  DeviceIdentifier fromJson(String json) => DeviceIdentifier(json);
+
+  @override
+  String toJson(DeviceIdentifier object) => object.str;
+}

lib/model/bluetooth_device_model.freezed.dart

@@ -24,20 +24,15 @@ mixin _$BluetoothDeviceModel {
   /// MAC address of the device
   String get address;
 
-  /// Signal strength indicator (RSSI)
-  int? get rssi;
-
   /// Type of the device
   DeviceType get type;
 
-  /// Whether the device is currently connected
-  bool get isConnected;
-
   /// Additional device information
   Map<String, dynamic>? get manufacturerData;
 
-  /// Service UUIDs advertised by the device
+  /// Identifier of the device
-  List<String>? get serviceUuids;
+  @DeviceIdentJsonConverter()
+  DeviceIdentifier get deviceIdent;
 
   /// Create a copy of BluetoothDeviceModel
   /// with the given fields replaced by the non-null parameter values.
@@ -58,32 +53,21 @@ mixin _$BluetoothDeviceModel {
             (identical(other.id, id) || other.id == id) &&
             (identical(other.name, name) || other.name == name) &&
             (identical(other.address, address) || other.address == address) &&
-            (identical(other.rssi, rssi) || other.rssi == rssi) &&
             (identical(other.type, type) || other.type == type) &&
-            (identical(other.isConnected, isConnected) ||
-                other.isConnected == isConnected) &&
             const DeepCollectionEquality()
                 .equals(other.manufacturerData, manufacturerData) &&
-            const DeepCollectionEquality()
+            (identical(other.deviceIdent, deviceIdent) ||
-                .equals(other.serviceUuids, serviceUuids));
+                other.deviceIdent == deviceIdent));
   }
 
   @JsonKey(includeFromJson: false, includeToJson: false)
   @override
-  int get hashCode => Object.hash(
+  int get hashCode => Object.hash(runtimeType, id, name, address, type,
-      runtimeType,
+      const DeepCollectionEquality().hash(manufacturerData), deviceIdent);
-      id,
-      name,
-      address,
-      rssi,
-      type,
-      isConnected,
-      const DeepCollectionEquality().hash(manufacturerData),
-      const DeepCollectionEquality().hash(serviceUuids));
 
   @override
   String toString() {
-    return 'BluetoothDeviceModel(id: $id, name: $name, address: $address, rssi: $rssi, type: $type, isConnected: $isConnected, manufacturerData: $manufacturerData, serviceUuids: $serviceUuids)';
+    return 'BluetoothDeviceModel(id: $id, name: $name, address: $address, type: $type, manufacturerData: $manufacturerData, deviceIdent: $deviceIdent)';
   }
 }
 
@@ -97,11 +81,9 @@ abstract mixin class $BluetoothDeviceModelCopyWith<$Res> {
       {String id,
       String? name,
       String address,
-      int? rssi,
       DeviceType type,
-      bool isConnected,
       Map<String, dynamic>? manufacturerData,
-      List<String>? serviceUuids});
+      @DeviceIdentJsonConverter() DeviceIdentifier deviceIdent});
 }
 
 /// @nodoc
@@ -120,11 +102,9 @@ class _$BluetoothDeviceModelCopyWithImpl<$Res>
     Object? id = null,
     Object? name = freezed,
     Object? address = null,
-    Object? rssi = freezed,
     Object? type = null,
-    Object? isConnected = null,
     Object? manufacturerData = freezed,
-    Object? serviceUuids = freezed,
+    Object? deviceIdent = null,
   }) {
     return _then(_self.copyWith(
       id: null == id
@@ -139,26 +119,18 @@ class _$BluetoothDeviceModelCopyWithImpl<$Res>
           ? _self.address
           : address // ignore: cast_nullable_to_non_nullable
               as String,
-      rssi: freezed == rssi
-          ? _self.rssi
-          : rssi // ignore: cast_nullable_to_non_nullable
-              as int?,
       type: null == type
           ? _self.type
           : type // ignore: cast_nullable_to_non_nullable
               as DeviceType,
-      isConnected: null == isConnected
-          ? _self.isConnected
-          : isConnected // ignore: cast_nullable_to_non_nullable
-              as bool,
       manufacturerData: freezed == manufacturerData
           ? _self.manufacturerData
           : manufacturerData // ignore: cast_nullable_to_non_nullable
               as Map<String, dynamic>?,
-      serviceUuids: freezed == serviceUuids
+      deviceIdent: null == deviceIdent
-          ? _self.serviceUuids
+          ? _self.deviceIdent
-          : serviceUuids // ignore: cast_nullable_to_non_nullable
+          : deviceIdent // ignore: cast_nullable_to_non_nullable
-              as List<String>?,
+              as DeviceIdentifier,
     ));
   }
 }
@@ -170,13 +142,10 @@ class _BluetoothDeviceModel implements BluetoothDeviceModel {
       {required this.id,
       this.name,
       required this.address,
-      this.rssi,
       this.type = DeviceType.other,
-      this.isConnected = false,
       final Map<String, dynamic>? manufacturerData,
-      final List<String>? serviceUuids})
+      @DeviceIdentJsonConverter() required this.deviceIdent})
-      : _manufacturerData = manufacturerData,
+      : _manufacturerData = manufacturerData;
-        _serviceUuids = serviceUuids;
   factory _BluetoothDeviceModel.fromJson(Map<String, dynamic> json) =>
       _$BluetoothDeviceModelFromJson(json);
 
@@ -192,20 +161,11 @@ class _BluetoothDeviceModel implements BluetoothDeviceModel {
   @override
   final String address;
 
-  /// Signal strength indicator (RSSI)
-  @override
-  final int? rssi;
-
   /// Type of the device
   @override
   @JsonKey()
   final DeviceType type;
 
-  /// Whether the device is currently connected
-  @override
-  @JsonKey()
-  final bool isConnected;
-
   /// Additional device information
   final Map<String, dynamic>? _manufacturerData;
 
@@ -219,18 +179,10 @@ class _BluetoothDeviceModel implements BluetoothDeviceModel {
     return EqualUnmodifiableMapView(value);
   }
 
-  /// Service UUIDs advertised by the device
+  /// Identifier of the device
-  final List<String>? _serviceUuids;
-
-  /// Service UUIDs advertised by the device
   @override
-  List<String>? get serviceUuids {
+  @DeviceIdentJsonConverter()
-    final value = _serviceUuids;
+  final DeviceIdentifier deviceIdent;
-    if (value == null) return null;
-    if (_serviceUuids is EqualUnmodifiableListView) return _serviceUuids;
-    // ignore: implicit_dynamic_type
-    return EqualUnmodifiableListView(value);
-  }
 
   /// Create a copy of BluetoothDeviceModel
   /// with the given fields replaced by the non-null parameter values.
@@ -256,32 +208,21 @@ class _BluetoothDeviceModel implements BluetoothDeviceModel {
             (identical(other.id, id) || other.id == id) &&
             (identical(other.name, name) || other.name == name) &&
             (identical(other.address, address) || other.address == address) &&
-            (identical(other.rssi, rssi) || other.rssi == rssi) &&
             (identical(other.type, type) || other.type == type) &&
-            (identical(other.isConnected, isConnected) ||
-                other.isConnected == isConnected) &&
             const DeepCollectionEquality()
                 .equals(other._manufacturerData, _manufacturerData) &&
-            const DeepCollectionEquality()
+            (identical(other.deviceIdent, deviceIdent) ||
-                .equals(other._serviceUuids, _serviceUuids));
+                other.deviceIdent == deviceIdent));
   }
 
   @JsonKey(includeFromJson: false, includeToJson: false)
   @override
-  int get hashCode => Object.hash(
+  int get hashCode => Object.hash(runtimeType, id, name, address, type,
-      runtimeType,
+      const DeepCollectionEquality().hash(_manufacturerData), deviceIdent);
-      id,
-      name,
-      address,
-      rssi,
-      type,
-      isConnected,
-      const DeepCollectionEquality().hash(_manufacturerData),
-      const DeepCollectionEquality().hash(_serviceUuids));
 
   @override
   String toString() {
-    return 'BluetoothDeviceModel(id: $id, name: $name, address: $address, rssi: $rssi, type: $type, isConnected: $isConnected, manufacturerData: $manufacturerData, serviceUuids: $serviceUuids)';
+    return 'BluetoothDeviceModel(id: $id, name: $name, address: $address, type: $type, manufacturerData: $manufacturerData, deviceIdent: $deviceIdent)';
   }
 }
 
@@ -297,11 +238,9 @@ abstract mixin class _$BluetoothDeviceModelCopyWith<$Res>
       {String id,
       String? name,
       String address,
-      int? rssi,
       DeviceType type,
-      bool isConnected,
       Map<String, dynamic>? manufacturerData,
-      List<String>? serviceUuids});
+      @DeviceIdentJsonConverter() DeviceIdentifier deviceIdent});
 }
 
 /// @nodoc
@@ -320,11 +259,9 @@ class __$BluetoothDeviceModelCopyWithImpl<$Res>
     Object? id = null,
     Object? name = freezed,
     Object? address = null,
-    Object? rssi = freezed,
     Object? type = null,
-    Object? isConnected = null,
     Object? manufacturerData = freezed,
-    Object? serviceUuids = freezed,
+    Object? deviceIdent = null,
   }) {
     return _then(_BluetoothDeviceModel(
       id: null == id
@@ -339,26 +276,18 @@ class __$BluetoothDeviceModelCopyWithImpl<$Res>
           ? _self.address
           : address // ignore: cast_nullable_to_non_nullable
               as String,
-      rssi: freezed == rssi
-          ? _self.rssi
-          : rssi // ignore: cast_nullable_to_non_nullable
-              as int?,
       type: null == type
           ? _self.type
           : type // ignore: cast_nullable_to_non_nullable
               as DeviceType,
-      isConnected: null == isConnected
-          ? _self.isConnected
-          : isConnected // ignore: cast_nullable_to_non_nullable
-              as bool,
       manufacturerData: freezed == manufacturerData
           ? _self._manufacturerData
           : manufacturerData // ignore: cast_nullable_to_non_nullable
               as Map<String, dynamic>?,
-      serviceUuids: freezed == serviceUuids
+      deviceIdent: null == deviceIdent
-          ? _self._serviceUuids
+          ? _self.deviceIdent
-          : serviceUuids // ignore: cast_nullable_to_non_nullable
+          : deviceIdent // ignore: cast_nullable_to_non_nullable
-              as List<String>?,
+              as DeviceIdentifier,
     ));
   }
 }

lib/model/bluetooth_device_model.g.dart

@@ -12,14 +12,11 @@ _BluetoothDeviceModel _$BluetoothDeviceModelFromJson(
       id: json['id'] as String,
       name: json['name'] as String?,
       address: json['address'] as String,
-      rssi: (json['rssi'] as num?)?.toInt(),
       type: $enumDecodeNullable(_$DeviceTypeEnumMap, json['type']) ??
           DeviceType.other,
-      isConnected: json['isConnected'] as bool? ?? false,
       manufacturerData: json['manufacturerData'] as Map<String, dynamic>?,
-      serviceUuids: (json['serviceUuids'] as List<dynamic>?)
+      deviceIdent: const DeviceIdentJsonConverter()
-          ?.map((e) => e as String)
+          .fromJson(json['deviceIdent'] as String),
-          .toList(),
     );
 
 Map<String, dynamic> _$BluetoothDeviceModelToJson(
@@ -28,11 +25,10 @@ Map<String, dynamic> _$BluetoothDeviceModelToJson(
       'id': instance.id,
       'name': instance.name,
       'address': instance.address,
-      'rssi': instance.rssi,
       'type': _$DeviceTypeEnumMap[instance.type]!,
-      'isConnected': instance.isConnected,
       'manufacturerData': instance.manufacturerData,
-      'serviceUuids': instance.serviceUuids,
+      'deviceIdent':
+          const DeviceIdentJsonConverter().toJson(instance.deviceIdent),
     };
 
 const _$DeviceTypeEnumMap = {

lib/model/firmware_file_selection.dart

@@ -0,0 +1,70 @@
+import 'dart:typed_data';
+
+class DfuV1FirmwareMetadata {
+  const DfuV1FirmwareMetadata({
+    required this.totalLength,
+    required this.crc32,
+    required this.sessionId,
+    required this.flags,
+  });
+
+  final int totalLength;
+  final int crc32;
+  final int sessionId;
+  final int flags;
+}
+
+class DfuV1PreparedFirmware {
+  const DfuV1PreparedFirmware({
+    required this.fileName,
+    required this.fileBytes,
+    required this.metadata,
+    this.filePath,
+  });
+
+  final String fileName;
+  final String? filePath;
+  final Uint8List fileBytes;
+  final DfuV1FirmwareMetadata metadata;
+}
+
+enum FirmwareSelectionFailureReason {
+  canceled,
+  malformedSelection,
+  unsupportedExtension,
+  emptyFile,
+  readFailed,
+}
+
+class FirmwareSelectionFailure {
+  const FirmwareSelectionFailure({
+    required this.reason,
+    required this.message,
+  });
+
+  final FirmwareSelectionFailureReason reason;
+  final String message;
+}
+
+class FirmwareFileSelectionResult {
+  const FirmwareFileSelectionResult._({
+    this.firmware,
+    this.failure,
+  });
+
+  final DfuV1PreparedFirmware? firmware;
+  final FirmwareSelectionFailure? failure;
+
+  bool get isSuccess => firmware != null;
+
+  bool get isCanceled =>
+      failure?.reason == FirmwareSelectionFailureReason.canceled;
+
+  static FirmwareFileSelectionResult success(DfuV1PreparedFirmware firmware) {
+    return FirmwareFileSelectionResult._(firmware: firmware);
+  }
+
+  static FirmwareFileSelectionResult failed(FirmwareSelectionFailure failure) {
+    return FirmwareFileSelectionResult._(failure: failure);
+  }
+}

lib/model/shifter_types.dart

@@ -0,0 +1,456 @@
+import 'package:cbor/simple.dart';
+
+const String universalShifterControlServiceUuid =
+    '0993826f-0ee4-4b37-9614-d13ecba4ffc2';
+const String universalShifterStatusCharacteristicUuid =
+    '0993826f-0ee4-4b37-9614-d13ecba40000';
+const String universalShifterConnectToAddrCharacteristicUuid =
+    '0993826f-0ee4-4b37-9614-d13ecba40001';
+const String universalShifterCommandCharacteristicUuid =
+    '0993826f-0ee4-4b37-9614-d13ecba40005';
+const String universalShifterGearRatiosCharacteristicUuid =
+    '0993826f-0ee4-4b37-9614-d13ecba40006';
+const String universalShifterDfuControlCharacteristicUuid =
+    '0993826f-0ee4-4b37-9614-d13ecba40008';
+const String universalShifterDfuDataCharacteristicUuid =
+    '0993826f-0ee4-4b37-9614-d13ecba40009';
+const String universalShifterDfuAckCharacteristicUuid =
+    '0993826f-0ee4-4b37-9614-d13ecba4000a';
+const String ftmsServiceUuid = '00001826-0000-1000-8000-00805f9b34fb';
+
+const int universalShifterDfuOpcodeStart = 0x01;
+const int universalShifterDfuOpcodeFinish = 0x02;
+const int universalShifterDfuOpcodeAbort = 0x03;
+
+const int universalShifterDfuFrameSizeBytes = 64;
+const int universalShifterDfuFramePayloadSizeBytes = 63;
+const int universalShifterAttWriteOverheadBytes = 3;
+const int universalShifterDfuMinimumMtu =
+    universalShifterDfuFrameSizeBytes + universalShifterAttWriteOverheadBytes;
+const int universalShifterDfuPreferredMtu = 128;
+
+const int universalShifterDfuFlagEncrypted = 0x01;
+const int universalShifterDfuFlagSigned = 0x02;
+const int universalShifterDfuFlagNone = 0x00;
+
+const int errorSequence = 1;
+const int errorFtmsMissing = 2;
+const int errorPairingAuth = 3;
+const int errorPairingEncrypt = 4;
+const int errorFtmsRequiredCharMissing = 5;
+
+enum DfuUpdateState {
+  idle,
+  starting,
+  waitingForAck,
+  transferring,
+  finishing,
+  completed,
+  aborted,
+  failed,
+}
+
+class DfuUpdateFlags {
+  const DfuUpdateFlags({
+    this.encrypted = false,
+    this.signed = false,
+  });
+
+  final bool encrypted;
+  final bool signed;
+
+  int get rawValue {
+    var value = 0;
+    if (encrypted) {
+      value |= universalShifterDfuFlagEncrypted;
+    }
+    if (signed) {
+      value |= universalShifterDfuFlagSigned;
+    }
+    return value;
+  }
+
+  static DfuUpdateFlags fromRaw(int rawValue) {
+    return DfuUpdateFlags(
+      encrypted: (rawValue & universalShifterDfuFlagEncrypted) != 0,
+      signed: (rawValue & universalShifterDfuFlagSigned) != 0,
+    );
+  }
+}
+
+class DfuUpdateProgress {
+  const DfuUpdateProgress({
+    required this.state,
+    required this.totalBytes,
+    required this.sentBytes,
+    required this.lastAckedSequence,
+    required this.sessionId,
+    required this.flags,
+    this.errorMessage,
+  });
+
+  final DfuUpdateState state;
+  final int totalBytes;
+  final int sentBytes;
+  final int lastAckedSequence;
+  final int sessionId;
+  final DfuUpdateFlags flags;
+  final String? errorMessage;
+
+  double get fractionComplete {
+    if (totalBytes <= 0) {
+      return 0;
+    }
+    return sentBytes.clamp(0, totalBytes) / totalBytes;
+  }
+
+  int get percentComplete => (fractionComplete * 100).round();
+
+  bool get isTerminal =>
+      state == DfuUpdateState.completed ||
+      state == DfuUpdateState.aborted ||
+      state == DfuUpdateState.failed;
+}
+
+enum DfuPreflightFailureReason {
+  deviceNotConnected,
+  wrongConnectedDevice,
+  mtuRequestFailed,
+  mtuTooLow,
+}
+
+class DfuPreflightResult {
+  const DfuPreflightResult._({
+    required this.requestedMtu,
+    required this.requiredMtu,
+    required this.negotiatedMtu,
+    required this.failureReason,
+    required this.message,
+  });
+
+  final int requestedMtu;
+  final int requiredMtu;
+  final int? negotiatedMtu;
+  final DfuPreflightFailureReason? failureReason;
+  final String? message;
+
+  bool get canStart => failureReason == null;
+
+  static DfuPreflightResult ready({
+    required int requestedMtu,
+    required int negotiatedMtu,
+    int requiredMtu = universalShifterDfuMinimumMtu,
+  }) {
+    return DfuPreflightResult._(
+      requestedMtu: requestedMtu,
+      requiredMtu: requiredMtu,
+      negotiatedMtu: negotiatedMtu,
+      failureReason: null,
+      message: null,
+    );
+  }
+
+  static DfuPreflightResult failed({
+    required int requestedMtu,
+    required DfuPreflightFailureReason failureReason,
+    required String message,
+    int requiredMtu = universalShifterDfuMinimumMtu,
+    int? negotiatedMtu,
+  }) {
+    return DfuPreflightResult._(
+      requestedMtu: requestedMtu,
+      requiredMtu: requiredMtu,
+      negotiatedMtu: negotiatedMtu,
+      failureReason: failureReason,
+      message: message,
+    );
+  }
+}
+
+class ShifterErrorInfo {
+  const ShifterErrorInfo({
+    required this.code,
+    required this.title,
+    required this.details,
+  });
+
+  final int code;
+  final String title;
+  final String details;
+}
+
+ShifterErrorInfo shifterErrorInfo(int code) {
+  switch (code) {
+    case errorSequence:
+      return const ShifterErrorInfo(
+        code: errorSequence,
+        title: 'Invalid command sequence',
+        details:
+            'The button received Connect without a fresh target address. The app must write connect_to_addr first, then the connect command.',
+      );
+    case errorFtmsMissing:
+      return const ShifterErrorInfo(
+        code: errorFtmsMissing,
+        title: 'FTMS service missing',
+        details:
+            'The selected bike does not expose the FTMS service (UUID 0x1826), so pairing cannot continue.',
+      );
+    case errorPairingAuth:
+      return const ShifterErrorInfo(
+        code: errorPairingAuth,
+        title: 'Pairing authentication failed',
+        details:
+            'Bonding authentication with the bike failed. Remove old bonds on both devices and try pairing again nearby.',
+      );
+    case errorPairingEncrypt:
+      return const ShifterErrorInfo(
+        code: errorPairingEncrypt,
+        title: 'Pairing/encryption failed',
+        details:
+            'The secure link to the bike could not be established. Retry close to the bike and ensure it is pairable.',
+      );
+    case errorFtmsRequiredCharMissing:
+      return const ShifterErrorInfo(
+        code: errorFtmsRequiredCharMissing,
+        title: 'Required FTMS characteristic missing',
+        details:
+            'The bike has FTMS but is missing required characteristics (for example Indoor Bike Data), so control cannot start.',
+      );
+    default:
+      return ShifterErrorInfo(
+        code: code,
+        title: 'Unknown error',
+        details: 'The button reported an unknown error code ($code).',
+      );
+  }
+}
+
+enum UniversalShifterCommand {
+  reset(0x00),
+  startScan(0x01),
+  stopScan(0x02),
+  connectToDevice(0x03),
+  disconnect(0x04),
+  turnOff(0x05);
+
+  const UniversalShifterCommand(this.value);
+  final int value;
+}
+
+enum ControlConnectionState {
+  disconnected,
+  connected;
+
+  static ControlConnectionState fromRaw(dynamic raw) {
+    if (raw is int) {
+      return raw == 1
+          ? ControlConnectionState.connected
+          : ControlConnectionState.disconnected;
+    }
+    if (raw is String) {
+      final normalized = raw.toLowerCase();
+      if (normalized.contains('connected')) {
+        return ControlConnectionState.connected;
+      }
+    }
+    return ControlConnectionState.disconnected;
+  }
+}
+
+enum TrainerConnectionState {
+  idle,
+  connecting,
+  pairing,
+  connected,
+  discoveringFtms,
+  ftmsReady,
+  error,
+}
+
+class TrainerStatus {
+  const TrainerStatus({required this.state, this.errorCode});
+
+  final TrainerConnectionState state;
+  final int? errorCode;
+
+  String get label {
+    switch (state) {
+      case TrainerConnectionState.idle:
+        return 'Idle';
+      case TrainerConnectionState.connecting:
+        return 'Connecting';
+      case TrainerConnectionState.pairing:
+        return 'Pairing';
+      case TrainerConnectionState.connected:
+        return 'Connected';
+      case TrainerConnectionState.discoveringFtms:
+        return 'Discovering FTMS';
+      case TrainerConnectionState.ftmsReady:
+        return 'FTMS Ready';
+      case TrainerConnectionState.error:
+        return 'Error${errorCode != null ? ' ($errorCode)' : ''}';
+    }
+  }
+
+  static TrainerStatus fromRaw(dynamic raw) {
+    if (raw is int) {
+      switch (raw) {
+        case 1:
+          return const TrainerStatus(state: TrainerConnectionState.connecting);
+        case 2:
+          return const TrainerStatus(state: TrainerConnectionState.pairing);
+        case 3:
+          return const TrainerStatus(state: TrainerConnectionState.connected);
+        case 4:
+          return const TrainerStatus(
+              state: TrainerConnectionState.discoveringFtms);
+        case 5:
+          return const TrainerStatus(state: TrainerConnectionState.ftmsReady);
+        default:
+          return const TrainerStatus(state: TrainerConnectionState.idle);
+      }
+    }
+
+    if (raw is List && raw.isNotEmpty) {
+      final variant = raw.first;
+      final value = raw.length > 1 ? raw[1] : null;
+      if (variant is int && (variant == 5 || variant == 6)) {
+        return TrainerStatus(
+          state: TrainerConnectionState.error,
+          errorCode: value is int ? value : null,
+        );
+      }
+    }
+
+    if (raw is Map) {
+      final entry = raw.entries.isNotEmpty ? raw.entries.first : null;
+      if (entry != null) {
+        final key = entry.key;
+        final value = entry.value;
+        if ((key is int && (key == 5 || key == 6)) ||
+            (key is String && key.toLowerCase().contains('error'))) {
+          return TrainerStatus(
+            state: TrainerConnectionState.error,
+            errorCode: value is int ? value : null,
+          );
+        }
+      }
+    }
+
+    if (raw is String) {
+      final normalized = raw.toLowerCase();
+      if (normalized.contains('connecting')) {
+        return const TrainerStatus(state: TrainerConnectionState.connecting);
+      }
+      if (normalized.contains('pairing')) {
+        return const TrainerStatus(state: TrainerConnectionState.pairing);
+      }
+      if (normalized.contains('connected')) {
+        return const TrainerStatus(state: TrainerConnectionState.connected);
+      }
+      if (normalized.contains('discover')) {
+        return const TrainerStatus(
+            state: TrainerConnectionState.discoveringFtms);
+      }
+      if (normalized.contains('ready')) {
+        return const TrainerStatus(state: TrainerConnectionState.ftmsReady);
+      }
+      if (normalized.contains('error')) {
+        return const TrainerStatus(state: TrainerConnectionState.error);
+      }
+    }
+
+    return const TrainerStatus(state: TrainerConnectionState.idle);
+  }
+}
+
+class CentralStatus {
+  const CentralStatus({
+    required this.control,
+    required this.trainer,
+    required this.hasSavedBond,
+    required this.connectedTrainerAddr,
+    required this.lastFailure,
+    required this.raw,
+  });
+
+  final ControlConnectionState control;
+  final TrainerStatus trainer;
+  final bool hasSavedBond;
+  final List<int>? connectedTrainerAddr;
+  final int? lastFailure;
+  final dynamic raw;
+
+  String get statusLine =>
+      'Control: ${control.name}, Trainer: ${trainer.label}${lastFailure != null ? ', Last failure: $lastFailure' : ''}';
+
+  static CentralStatus fromCborBytes(List<int> bytes) {
+    final decoded = cbor.decode(bytes);
+    if (decoded is! Map) {
+      return CentralStatus(
+        control: ControlConnectionState.disconnected,
+        trainer: const TrainerStatus(state: TrainerConnectionState.idle),
+        hasSavedBond: false,
+        connectedTrainerAddr: null,
+        lastFailure: null,
+        raw: decoded,
+      );
+    }
+
+    final controlRaw = _readMapValue(decoded, [0, 'control']);
+    final trainerRaw = _readMapValue(decoded, [1, 'trainer']);
+    final hasSavedBondRaw = _readMapValue(decoded, [2, 'has_saved_bond']);
+    final connectedTrainerAddrRaw =
+        _readMapValue(decoded, [3, 'connected_trainer_addr']);
+    final lastFailureRaw = _readMapValue(decoded, [4, 'last_failure']);
+
+    return CentralStatus(
+      control: ControlConnectionState.fromRaw(controlRaw),
+      trainer: TrainerStatus.fromRaw(trainerRaw),
+      hasSavedBond: hasSavedBondRaw is bool ? hasSavedBondRaw : false,
+      connectedTrainerAddr: _toByteList(connectedTrainerAddrRaw),
+      lastFailure: lastFailureRaw is int ? lastFailureRaw : null,
+      raw: decoded,
+    );
+  }
+}
+
+dynamic _readMapValue(Map<dynamic, dynamic> map, List<dynamic> keys) {
+  for (final key in keys) {
+    if (map.containsKey(key)) {
+      return map[key];
+    }
+  }
+  return null;
+}
+
+List<int>? _toByteList(dynamic value) {
+  if (value == null) {
+    return null;
+  }
+  if (value is List) {
+    return value.whereType<int>().toList(growable: false);
+  }
+  return null;
+}
+
+List<int> parseMacToLittleEndianBytes(String macAddress) {
+  final compact = macAddress.replaceAll(':', '').replaceAll('-', '');
+  if (compact.length != 12) {
+    throw FormatException('Invalid MAC address format: $macAddress');
+  }
+  final bytes = <int>[];
+  for (int i = 0; i < compact.length; i += 2) {
+    bytes.add(int.parse(compact.substring(i, i + 2), radix: 16));
+  }
+  return bytes.reversed.toList(growable: false);
+}
+
+String formatMacAddressFromLittleEndian(List<int> bytes) {
+  if (bytes.length != 6) {
+    return 'Unknown';
+  }
+  return bytes.reversed
+      .map((b) => b.toRadixString(16).padLeft(2, '0').toUpperCase())
+      .join(':');
+}

lib/pages/devices_page.dart

@@ -1,11 +1,17 @@
+import 'dart:io';
+
 import 'package:abawo_bt_app/controller/bluetooth.dart';
+import 'package:abawo_bt_app/model/bluetooth_device_model.dart';
 import 'package:abawo_bt_app/util/constants.dart';
+import 'package:anyhow/anyhow.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
-import 'package:flutter_blue_plus/flutter_blue_plus.dart';
+import 'package:flutter_reactive_ble/flutter_reactive_ble.dart';
 import 'package:abawo_bt_app/widgets/device_listitem.dart';
-import 'package:abawo_bt_app/widgets/scanning_animation.dart'; // Import the new animation widget
+import 'package:abawo_bt_app/widgets/horizontal_scanning_animation.dart'; // Import the new horizontal animation
+import 'package:abawo_bt_app/database/database.dart';
+import 'package:drift/drift.dart' show Value;
 
 const Duration _scanDuration = Duration(seconds: 10);
 
@@ -18,25 +24,20 @@ class ConnectDevicePage extends ConsumerStatefulWidget {
 
 class _ConnectDevicePageState extends ConsumerState<ConnectDevicePage>
     with TickerProviderStateMixin {
-  // Use TickerProviderStateMixin for multiple controllers if needed later, good practice
+  // TickerProviderStateMixin is no longer needed as animations are self-contained or handled by StreamBuilder
-  bool _initialScanStarted = false;
+  int _retryScanCounter = 0; // Used to force animation reset
+  bool _initialScanTriggered = false; // Track if the first scan was requested
   bool _showOnlyAbawoDevices = true; // State for filtering devices
-  late AnimationController
-      _progressController; // Controller for scan duration progress
-  late AnimationController
-      _waveAnimationController; // Controller for wave animation
-
   // Function to start scan safely after controller is ready
   void _startScanIfNeeded(BluetoothController controller) {
     // Use WidgetsBinding to schedule the scan start after the build phase
     WidgetsBinding.instance.addPostFrameCallback((_) {
-      if (!_initialScanStarted && mounted) {
+      // Start scan only if it hasn't been triggered yet and the widget is mounted
+      if (!_initialScanTriggered && mounted) {
         controller.startScan(timeout: _scanDuration);
-        _startScanProgressAnimation(); // Start scan duration progress animation
-        _startWaveAnimation(); // Start the wave animation
         if (mounted) {
           setState(() {
-            _initialScanStarted = true;
+            _initialScanTriggered = true;
           });
         }
       }
@@ -46,64 +47,17 @@ class _ConnectDevicePageState extends ConsumerState<ConnectDevicePage>
   @override
   void initState() {
     super.initState();
-    // Initialize scan progress controller
+    super.initState();
-    _progressController = AnimationController(
+    // No animation controllers needed here anymore
-      vsync: this,
-      duration: _scanDuration,
-    )..addListener(() {
-        // Trigger rebuild when animation value changes for the progress indicator
-        if (mounted) {
-          setState(() {});
-        }
-      });
-
-    // Initialize wave animation controller
-    _waveAnimationController = AnimationController(
-      vsync: this,
-      duration: const Duration(milliseconds: 1500), // New duration: 1.5 seconds
-    )..repeat(); // Make the wave animation repeat
   }
 
   @override
   void dispose() {
-    // Stop animations before disposing
+    // Dispose controllers if they existed (they don't anymore)
-    _progressController.stop();
-    _waveAnimationController.stop();
-    _progressController.dispose();
-    _waveAnimationController.dispose();
     super.dispose();
   }
 
-  // Helper method to start/reset scan progress animation
+  // Removed _startScanProgressAnimation, _startWaveAnimation, _stopAnimations
-  void _startScanProgressAnimation() {
-    if (mounted) {
-      _progressController.reset();
-      _progressController.forward().whenCompleteOrCancel(() {
-        // Optional: Add logic if needed when scan progress completes or cancels
-      });
-    }
-  }
-
-  // Helper method to start the wave animation
-  void _startWaveAnimation() {
-    if (mounted && !_waveAnimationController.isAnimating) {
-      _waveAnimationController.reset();
-      _waveAnimationController.repeat();
-    }
-  }
-
-  // Helper method to stop animations when scan finishes/cancels
-  void _stopAnimations() {
-    if (mounted) {
-      if (_progressController.isAnimating) {
-        _progressController.stop();
-      }
-      if (_waveAnimationController.isAnimating) {
-        _waveAnimationController.stop();
-      }
-    }
-  }
-
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -134,155 +88,264 @@ class _ConnectDevicePageState extends ConsumerState<ConnectDevicePage>
           )
         ],
       ),
-      body: Center(
+      body: Column(
-        child: Column(
+        // Use Column instead of Center(Column(...))
-          mainAxisAlignment: MainAxisAlignment.center,
         children: [
-            const Text(
+          const Padding(
+            padding: EdgeInsets.all(16.0), // Add padding around the title
+            child: Text(
               'Available Devices',
               style: TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
             ),
-            const SizedBox(height: 20),
+          ),
-            // Use Consumer to react to bluetoothProvider changes
+          // Use Consumer to get the BluetoothController
           Expanded(
-              // Allow the Consumer content to expand
+            // Allow the device list to take available space
-              child: Consumer(builder: (context, ref, child) {
+            child: Consumer(
+              builder: (context, ref, child) {
                 final btAsyncValue = ref.watch(bluetoothProvider);
+                final connectedDevices =
+                    ref.watch(nConnectedDevicesProvider).valueOrNull ??
+                        const <ConnectedDevice>[];
+                final connectedDeviceAddresses = connectedDevices
+                    .map((device) => device.deviceAddress)
+                    .toSet();
 
                 return btAsyncValue.when(
-                  loading: () => const Center(
+                  loading: () =>
-                      child:
+                      const Center(child: CircularProgressIndicator()),
-                          CircularProgressIndicator()), // Center loading indicator
+                  error: (err, stack) => Center(child: Text('Error: $err')),
-                  error: (err, stack) => Center(
-                      child: Text(
-                          'Error loading Bluetooth: $err')), // Center error
                   data: (controller) {
-                    // Start the initial scan once the controller is ready
+                    // Trigger the initial scan if needed
-                    // Start initial scan and animation
                     _startScanIfNeeded(controller);
 
-                    // Use StreamBuilder to watch the scanning state
+                    // StreamBuilder for Scan Results (Device List)
-                    return StreamBuilder<bool>(
+                    return StreamBuilder<List<DiscoveredDevice>>(
-                      stream: FlutterBluePlus.isScanning,
+                      stream: controller.scanResultsStream,
-                      initialData:
+                      initialData: const [],
-                          false, // Default to not scanning before check
                       builder: (context, snapshot) {
-                        final isScanning = snapshot.data ?? false;
+                        final results = snapshot.data ?? [];
-
-                        if (isScanning && _initialScanStarted) {
-                          _startWaveAnimation(); // Ensure wave animation is running
-                          // Show the new scanning wave animation with the progress indicator value
-                          return Center(
-                            // Pass the wave animation controller. The progress value will be added
-                            // to the ScanningWaveAnimation widget itself later.
-                            child: ScanningWaveAnimation(
-                              animation: _waveAnimationController,
-                              progressValue: _progressController
-                                  .value, // Pass the scan progress
-                            ),
-                          );
-                        } else if (!_initialScanStarted) {
-                          // Show placeholder or button to start initial scan if needed, or just empty space
-                          return const SizedBox(
-                              height: 50); // Placeholder before scan starts
-                        } else {
-                          // Scan finished, stop animations and show results
-                          _stopAnimations();
-                          final results = controller.scanResults;
                         // Filter results based on the toggle state
                         final filteredResults = _showOnlyAbawoDevices
                             ? results
-                                  .where((device) => device
+                                .where((device) =>
-                                      .advertisementData.serviceUuids
+                                    device.serviceUuids.any(isAbawoDeviceGuid))
-                                      .contains(Guid(abawoServiceBtUUID)))
                                 .toList()
                             : results;
 
-                          // Use Column + Expanded for ListView + Button layout
+                        if (!_initialScanTriggered && filteredResults.isEmpty) {
-                          return Column(
+                          // Show a message or placeholder before the first scan starts or if no devices found initially
-                            children: [
+                          return const Center(
-                              Expanded(
-                                // Allow ListView to take available space
-                                child: filteredResults
-                                        .isEmpty // Use filtered list check
-                                    ? const Center(
                               child: Text(
-                                            'No devices found.')) // Center empty text
+                                  'Scanning for devices...')); // Or CircularProgressIndicator()
-                                    : ListView.builder(
+                        }
-                                        itemCount: filteredResults
+
-                                            .length, // Use filtered list length
+                        if (filteredResults.isEmpty && _initialScanTriggered) {
+                          // Show 'No devices found' only after the initial scan was triggered
+                          return const Center(child: Text('No devices found.'));
+                        }
+
+                        // Display the list
+                        return ListView.builder(
+                          itemCount: filteredResults.length,
                           itemBuilder: (context, index) {
-                                          final device = filteredResults[
+                            final device = filteredResults[index];
-                                              index]; // Use filtered list
+                            final isAlreadyConnected =
-                                          final isAbawoDevice = device
+                                connectedDeviceAddresses.contains(device.id);
-                                              .advertisementData.serviceUuids
+                            final abawoDevice =
-                                              .contains(
+                                device.serviceUuids.any(isAbawoDeviceGuid);
-                                                  Guid(abawoServiceBtUUID));
+                            final connectable = device.serviceUuids
-                                          final deviceName =
+                                .any(isConnectableAbawoDeviceGuid);
-                                              device.device.advName.isEmpty
+                            final deviceName = device.name.isEmpty
                                 ? 'Unknown Device'
-                                                  : device.device.advName;
+                                : device.name;
-                                          // Use the custom DeviceListItem widget
+
                             return InkWell(
-                                            // Wrap with InkWell for tap feedback
+                              onTap: () async {
-                                            onTap: () {
+                                if (isAlreadyConnected) {
-                                              if (!isAbawoDevice) {
+                                  ScaffoldMessenger.of(context).showSnackBar(
-                                                // Show a snackbar for non-Abawo devices
+                                    const SnackBar(
-                                                ScaffoldMessenger.of(context)
-                                                    .showSnackBar(const SnackBar(
                                       content: Text(
-                                                            'This app can only connect to abawo devices.')));
+                                          'This device is already connected in the app.'),
+                                    ),
+                                  );
                                   return;
                                 }
-                                              // TODO: Implement connect logic
+                                if (!abawoDevice) {
-                                              // controller.connectToDevice(device.device); // Pass the BluetoothDevice
+                                  ScaffoldMessenger.of(context).showSnackBar(
-                                              // context.go('/control/${device.device.remoteId.str}');
+                                    const SnackBar(
-                                              print(
+                                        content: Text(
-                                                  'Tapped on ${device.device.remoteId.str}');
+                                            'This app can only connect to abawo devices.')),
+                                  );
+                                  return;
+                                } else if (!connectable) {
+                                  ScaffoldMessenger.of(context).showSnackBar(
+                                    const SnackBar(
+                                        content: Text(
+                                            'This device is not connectable with the app.')),
+                                  );
+                                  return;
+                                } else {
+                                  final res = await controller.connect(device);
+                                  print('res: $res');
+                                  switch (res) {
+                                    case Ok():
+                                      // trigger pairing/permission prompt if needed
+                                      if (!Platform.isAndroid) {
+                                        controller.readCharacteristic(
+                                            device.id,
+                                            '0993826f-0ee4-4b37-9614-d13ecba4ffc2',
+                                            '0993826f-0ee4-4b37-9614-d13ecba40000');
+                                      }
+                                      // Save to DB and navigate
+                                      final notifier = ref.read(
+                                          nConnectedDevicesProvider.notifier);
+                                      final name = device.name.isNotEmpty
+                                          ? device.name
+                                          : 'Unknown Device';
+                                      final deviceCompanion =
+                                          ConnectedDevicesCompanion(
+                                        deviceName: Value(name),
+                                        deviceAddress: Value(device.id),
+                                        deviceType: Value(deviceTypeToString(
+                                            deviceTypeFromUuids(
+                                                device.serviceUuids))),
+                                        lastConnectedAt: Value(DateTime.now()),
+                                      );
+                                      final addResult = await notifier
+                                          .addConnectedDevice(deviceCompanion);
+
+                                      // Check if mounted before using context
+                                      if (!context.mounted) break;
+
+                                      if (addResult.isErr()) {
+                                        ScaffoldMessenger.of(context)
+                                            .showSnackBar(
+                                          SnackBar(
+                                              content: Text(
+                                                  'Failed to save device: ${addResult.unwrapErr()}')),
+                                        );
+                                      } else {
+                                        context.go('/device/${device.id}');
+                                      }
+                                      break;
+                                    case Err(:final v):
+                                      ScaffoldMessenger.of(context)
+                                          .showSnackBar(SnackBar(
+                                        content: Text(
+                                            'Connection unsuccessful:\n${v.toString()}'),
+                                      ));
+                                      break;
+                                  }
+                                }
+                                print('Tapped on ${device.id}');
                               },
                               child: DeviceListItem(
                                 deviceName: deviceName,
-                                              deviceId:
+                                deviceId: device.id,
-                                                  device.device.remoteId.str,
+                                type: deviceTypeFromUuids(device.serviceUuids),
-                                              isUnknownDevice:
-                                                  device.device.advName.isEmpty,
                               ),
                             );
-                                        } // End of itemBuilder
+                          },
+                        );
+                      },
+                    );
+                  },
+                );
+              },
             ),
           ),
-                              Padding(
+          // Bottom section: Scanning Animation and Retry Button (visible only when scanning)
-                                // Add padding around the button
+          Consumer(
+              // Use Consumer to get the controller for the retry button action
+              builder: (context, ref, child) {
+            final btController = ref
+                .watch(bluetoothProvider)
+                .asData
+                ?.value; // Get controller safely
+
+            return StreamBuilder<bool>(
+              stream: btController?.isScanningStream ?? Stream<bool>.empty(),
+              initialData: false,
+              builder: (context, snapshot) {
+                final isScanning = snapshot.data ?? false;
+
+                // Show bottom section only if scanning
+                if (!isScanning) {
+                  // Show only the retry button when not scanning (optional, could be hidden)
+                  // For now, let's keep the button always visible but disabled when not scannable.
+                  // A better approach might be to hide the button when not scanning.
+                  // Let's show the button but potentially disabled later if controller is null.
+                  return Padding(
                     padding: const EdgeInsets.all(16.0),
                     child: ElevatedButton(
-                                  onPressed: () {
+                      onPressed: btController != null
-                                    // Retry scan by calling startScan on the controller
+                          ? () {
-                                    // Ensure _initialScanStarted is true so indicator shows
+                              // Retry scan ONLY when NOT currently scanning
                               if (mounted) {
                                 setState(() {
-                                        _initialScanStarted = true;
+                                  _initialScanTriggered =
+                                      true; // Ensure state reflects scan attempt
+                                  _retryScanCounter++; // Increment key counter
                                 });
                               }
-                                    controller.startScan(
+                              btController.startScan(timeout: _scanDuration);
-                                        timeout: _scanDuration);
+                            }
-                                    _startScanProgressAnimation(); // Restart scan progress animation
+                          : null, // Disable if controller not ready
-                                    _startWaveAnimation(); // Ensure wave animation runs on retry
-                                  },
                       child: const Text('Retry Scan'),
                     ),
-                              ),
-                            ],
                   );
                 }
-                      },
+
+                // If scanning, show animation and button
+                return Container(
+                  padding: const EdgeInsets.symmetric(
+                      vertical: 8.0, horizontal: 16.0),
+                  decoration: BoxDecoration(
+                    color: Theme.of(context)
+                        .scaffoldBackgroundColor
+                        .withValues(alpha: 0.9), // Slight overlay effect
+                    boxShadow: [
+                      BoxShadow(
+                        color: Colors.black.withValues(alpha: 0.1),
+                        blurRadius: 8,
+                        offset: const Offset(0, -4), // Shadow upwards
+                      )
+                    ],
+                  ),
+                  child: Column(
+                    mainAxisSize: MainAxisSize.min, // Keep column compact
+                    children: [
+                      // Pass isScanning and the ValueKey
+                      HorizontalScanningAnimation(
+                        key: ValueKey(
+                            _retryScanCounter), // Force state rebuild on counter change
+                        isScanning: isScanning,
+                        height: 40,
+                      ),
+                      const SizedBox(height: 8),
+                      ElevatedButton(
+                        // Button does nothing if pressed *while* scanning.
+                        // It just indicates the status.
+                        onPressed: null, // Disable button while scanning
+                        style: ElevatedButton.styleFrom(
+                          disabledBackgroundColor: Theme.of(context)
+                              .primaryColor
+                              .withValues(alpha: 0.5), // Custom disabled color
+                          disabledForegroundColor: Colors.white70,
+                        ),
+                        child:
+                            const Text('Scanning...'), // Just indicate status
+                      ),
+                      const SizedBox(height: 8), // Add some bottom padding
+                    ],
+                  ),
                 );
               },
             );
           }),
-            ),
+        ], // End of outer Column children
-          ],
+      ), // End of Scaffold
-        ),
-      ),
     );
   }
 }

lib/pages/home_page.dart

@@ -1,4 +1,9 @@
+import 'package:abawo_bt_app/controller/bluetooth.dart';
+import 'package:abawo_bt_app/database/database.dart';
+import 'package:abawo_bt_app/model/bluetooth_device_model.dart';
+import 'package:abawo_bt_app/widgets/device_listitem.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
 
 class HomePage extends StatelessWidget {
@@ -53,10 +58,7 @@ class HomePage extends StatelessWidget {
                       borderRadius: BorderRadius.circular(8),
                     ),
                     child: const Center(
-                      child: Text(
+                      child: DevicesList(),
-                        'No devices connected yet',
-                        style: TextStyle(color: Colors.grey),
-                      ),
                     ),
                   ),
                 ],
@@ -73,3 +75,148 @@ class HomePage extends StatelessWidget {
     );
   }
 }
+
+class DevicesList extends ConsumerStatefulWidget {
+  const DevicesList({super.key});
+
+  @override
+  ConsumerState<DevicesList> createState() => _DevicesListState();
+}
+
+class _DevicesListState extends ConsumerState<DevicesList> {
+  String? _connectingDeviceId; // ID of device currently being connected
+
+  Future<void> _removeDevice(ConnectedDevice device) async {
+    final shouldRemove = await showDialog<bool>(
+      context: context,
+      builder: (dialogContext) => AlertDialog(
+        title: const Text('Remove device?'),
+        content:
+            Text('Do you want to remove ${device.deviceName} from the app?'),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.of(dialogContext).pop(false),
+            child: const Text('Cancel'),
+          ),
+          FilledButton(
+            onPressed: () => Navigator.of(dialogContext).pop(true),
+            child: const Text('Remove'),
+          ),
+        ],
+      ),
+    );
+
+    if (shouldRemove != true || !mounted) {
+      return;
+    }
+
+    final result = await ref
+        .read(nConnectedDevicesProvider.notifier)
+        .deleteConnectedDevice(device.id);
+
+    if (!mounted) {
+      return;
+    }
+
+    if (result.isErr()) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+            content: Text('Failed to remove device: ${result.unwrapErr()}')),
+      );
+      return;
+    }
+
+    if (_connectingDeviceId == device.deviceAddress) {
+      setState(() {
+        _connectingDeviceId = null;
+      });
+    }
+
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(content: Text('${device.deviceName} removed from the app.')),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final asyncDevices = ref.watch(nConnectedDevicesProvider);
+
+    return asyncDevices.when(
+      loading: () => const Center(
+        child: CircularProgressIndicator(),
+      ),
+      error: (error, stackTrace) => Center(
+        child: Text(
+          'Error loading devices: ${error.toString()}',
+          style: TextStyle(color: Colors.red),
+          textAlign: TextAlign.center,
+        ),
+      ),
+      data: (devices) {
+        if (devices.isEmpty) {
+          return const Center(
+            child: Text(
+              'No devices connected yet',
+              style: TextStyle(color: Colors.grey),
+            ),
+          );
+        }
+
+        return ListView.builder(
+          itemCount: devices.length,
+          shrinkWrap: true,
+          itemBuilder: (context, index) {
+            final device = devices[index];
+            return InkWell(
+              onTap: () async {
+                if (_connectingDeviceId != null) return;
+                setState(() {
+                  _connectingDeviceId = device.deviceAddress;
+                });
+
+                try {
+                  final controller = await ref.read(bluetoothProvider.future);
+                  final result = await controller.connectById(
+                    device.deviceAddress,
+                    timeout: const Duration(seconds: 10),
+                  );
+
+                  if (result.isOk()) {
+                    context.go('/device/${device.deviceAddress}');
+                  } else {
+                    ScaffoldMessenger.of(context).showSnackBar(
+                      SnackBar(
+                        content: Text(
+                            'Connection failed. Is the device turned on and in range?'),
+                        duration: const Duration(seconds: 3),
+                      ),
+                    );
+                  }
+                } catch (e) {
+                  ScaffoldMessenger.of(context).showSnackBar(
+                    SnackBar(content: Text('Error: ${e.toString()}')),
+                  );
+                } finally {
+                  setState(() {
+                    _connectingDeviceId = null;
+                  });
+                }
+              },
+              child: DeviceListItem(
+                deviceName: device.deviceName,
+                deviceId: device.deviceAddress,
+                type: deviceTypeFromString(device.deviceType),
+                isConnecting: device.deviceAddress == _connectingDeviceId,
+                trailing: IconButton(
+                  tooltip: 'Remove device',
+                  icon: const Icon(Icons.delete_outline),
+                  onPressed: () => _removeDevice(device),
+                ),
+              ),
+            );
+          },
+        );
+      },
+    );
+  }
+}

lib/service/dfu_protocol.dart

@@ -0,0 +1,137 @@
+import 'dart:typed_data';
+
+import 'package:abawo_bt_app/model/shifter_types.dart';
+
+const int _startPayloadLength = 11;
+
+class DfuStartPayload {
+  const DfuStartPayload({
+    required this.totalLength,
+    required this.imageCrc32,
+    required this.sessionId,
+    required this.flags,
+  });
+
+  final int totalLength;
+  final int imageCrc32;
+  final int sessionId;
+  final int flags;
+}
+
+class DfuDataFrame {
+  const DfuDataFrame({
+    required this.sequence,
+    required this.offset,
+    required this.payloadLength,
+    required this.bytes,
+  });
+
+  final int sequence;
+  final int offset;
+  final int payloadLength;
+  final Uint8List bytes;
+}
+
+class DfuProtocol {
+  const DfuProtocol._();
+
+  static Uint8List encodeStartPayload(DfuStartPayload payload) {
+    final data = ByteData(_startPayloadLength);
+    data.setUint8(0, universalShifterDfuOpcodeStart);
+    data.setUint32(1, payload.totalLength, Endian.little);
+    data.setUint32(5, payload.imageCrc32, Endian.little);
+    data.setUint8(9, payload.sessionId);
+    data.setUint8(10, payload.flags);
+    return data.buffer.asUint8List();
+  }
+
+  static Uint8List encodeFinishPayload() {
+    return Uint8List.fromList([universalShifterDfuOpcodeFinish]);
+  }
+
+  static Uint8List encodeAbortPayload() {
+    return Uint8List.fromList([universalShifterDfuOpcodeAbort]);
+  }
+
+  static List<DfuDataFrame> buildDataFrames(
+    List<int> imageBytes, {
+    int startSequence = 0,
+  }) {
+    final frames = <DfuDataFrame>[];
+    var seq = _asU8(startSequence);
+    var offset = 0;
+    while (offset < imageBytes.length) {
+      final remaining = imageBytes.length - offset;
+      final chunkLength = remaining < universalShifterDfuFramePayloadSizeBytes
+          ? remaining
+          : universalShifterDfuFramePayloadSizeBytes;
+
+      final frame = Uint8List(universalShifterDfuFrameSizeBytes);
+      frame[0] = seq;
+      frame.setRange(1, 1 + chunkLength, imageBytes, offset);
+
+      frames.add(
+        DfuDataFrame(
+          sequence: seq,
+          offset: offset,
+          payloadLength: chunkLength,
+          bytes: frame,
+        ),
+      );
+
+      offset += chunkLength;
+      seq = nextSequence(seq);
+    }
+
+    return frames;
+  }
+
+  static int nextSequence(int sequence) {
+    return _asU8(sequence + 1);
+  }
+
+  static int rewindSequenceFromAck(int acknowledgedSequence) {
+    return nextSequence(acknowledgedSequence);
+  }
+
+  static int sequenceDistance(int from, int to) {
+    return _asU8(to - from);
+  }
+
+  static int parseAckPayload(List<int> payload) {
+    if (payload.length != 1) {
+      throw const FormatException('ACK payload must be exactly 1 byte.');
+    }
+    return _asU8(payload.first);
+  }
+
+  static const int crc32Initial = 0xFFFFFFFF;
+  static const int _crc32PolynomialReflected = 0xEDB88320;
+
+  static int crc32Update(int crc, List<int> bytes) {
+    var next = crc & 0xFFFFFFFF;
+    for (final byte in bytes) {
+      next ^= byte;
+      for (var bit = 0; bit < 8; bit++) {
+        if ((next & 0x1) != 0) {
+          next = (next >> 1) ^ _crc32PolynomialReflected;
+        } else {
+          next >>= 1;
+        }
+      }
+    }
+    return next & 0xFFFFFFFF;
+  }
+
+  static int crc32Finalize(int crc) {
+    return (crc ^ 0xFFFFFFFF) & 0xFFFFFFFF;
+  }
+
+  static int crc32(List<int> bytes) {
+    return crc32Finalize(crc32Update(crc32Initial, bytes));
+  }
+
+  static int _asU8(int value) {
+    return value & 0xFF;
+  }
+}

lib/service/firmware_file_selection_service.dart

@@ -0,0 +1,154 @@
+import 'dart:io';
+import 'dart:math';
+import 'dart:typed_data';
+
+import 'package:abawo_bt_app/model/firmware_file_selection.dart';
+import 'package:abawo_bt_app/model/shifter_types.dart';
+import 'package:abawo_bt_app/service/dfu_protocol.dart';
+import 'package:file_picker/file_picker.dart';
+
+typedef SessionIdGenerator = int Function();
+
+class FirmwarePickerSelection {
+  const FirmwarePickerSelection({
+    required this.fileName,
+    required this.fileBytes,
+    this.filePath,
+  });
+
+  final String fileName;
+  final Uint8List fileBytes;
+  final String? filePath;
+}
+
+abstract interface class FirmwareFilePicker {
+  Future<FirmwarePickerSelection?> pickFirmwareFile();
+}
+
+class LocalFirmwareFilePicker implements FirmwareFilePicker {
+  @override
+  Future<FirmwarePickerSelection?> pickFirmwareFile() async {
+    final pickResult = await FilePicker.platform.pickFiles(
+      allowMultiple: false,
+      withData: true,
+      type: FileType.custom,
+      allowedExtensions: const ['bin'],
+    );
+    if (pickResult == null) {
+      return null;
+    }
+    if (pickResult.files.isEmpty) {
+      return FirmwarePickerSelection(
+        fileName: '',
+        fileBytes: Uint8List(0),
+      );
+    }
+
+    final selected = pickResult.files.first;
+    final bytes = selected.bytes ?? await _readFromPath(selected.path);
+
+    return FirmwarePickerSelection(
+      fileName: selected.name,
+      filePath: selected.path,
+      fileBytes: bytes,
+    );
+  }
+
+  Future<Uint8List> _readFromPath(String? path) async {
+    if (path == null || path.trim().isEmpty) {
+      throw const FileSystemException(
+        'Selected file did not contain readable bytes or a valid path.',
+      );
+    }
+    final file = File(path);
+    return file.readAsBytes();
+  }
+}
+
+class FirmwareFileSelectionService {
+  FirmwareFileSelectionService({
+    required FirmwareFilePicker filePicker,
+    SessionIdGenerator? sessionIdGenerator,
+  })  : _filePicker = filePicker,
+        _sessionIdGenerator = sessionIdGenerator ?? _randomSessionId;
+
+  final FirmwareFilePicker _filePicker;
+  final SessionIdGenerator _sessionIdGenerator;
+
+  Future<FirmwareFileSelectionResult> selectAndPrepareDfuV1() async {
+    final FirmwarePickerSelection? selection;
+    try {
+      selection = await _filePicker.pickFirmwareFile();
+    } catch (error) {
+      return FirmwareFileSelectionResult.failed(
+        FirmwareSelectionFailure(
+          reason: FirmwareSelectionFailureReason.readFailed,
+          message: 'Could not read selected firmware file: $error',
+        ),
+      );
+    }
+
+    if (selection == null) {
+      return FirmwareFileSelectionResult.failed(
+        const FirmwareSelectionFailure(
+          reason: FirmwareSelectionFailureReason.canceled,
+          message: 'Firmware selection canceled.',
+        ),
+      );
+    }
+
+    final fileName = selection.fileName.trim();
+    if (fileName.isEmpty) {
+      return FirmwareFileSelectionResult.failed(
+        const FirmwareSelectionFailure(
+          reason: FirmwareSelectionFailureReason.malformedSelection,
+          message: 'Selected firmware file is missing a valid name.',
+        ),
+      );
+    }
+
+    if (!_hasBinExtension(fileName)) {
+      return FirmwareFileSelectionResult.failed(
+        FirmwareSelectionFailure(
+          reason: FirmwareSelectionFailureReason.unsupportedExtension,
+          message:
+              'Unsupported firmware file "$fileName". Please select a .bin file.',
+        ),
+      );
+    }
+
+    if (selection.fileBytes.isEmpty) {
+      return FirmwareFileSelectionResult.failed(
+        FirmwareSelectionFailure(
+          reason: FirmwareSelectionFailureReason.emptyFile,
+          message:
+              'Selected firmware file "$fileName" is empty. Choose a non-empty .bin file.',
+        ),
+      );
+    }
+
+    final metadata = DfuV1FirmwareMetadata(
+      totalLength: selection.fileBytes.length,
+      crc32: DfuProtocol.crc32(selection.fileBytes),
+      sessionId: _sessionIdGenerator() & 0xFF,
+      flags: universalShifterDfuFlagNone,
+    );
+
+    return FirmwareFileSelectionResult.success(
+      DfuV1PreparedFirmware(
+        fileName: fileName,
+        filePath: selection.filePath,
+        fileBytes: selection.fileBytes,
+        metadata: metadata,
+      ),
+    );
+  }
+
+  bool _hasBinExtension(String fileName) {
+    return fileName.toLowerCase().endsWith('.bin');
+  }
+
+  static int _randomSessionId() {
+    return Random.secure().nextInt(256);
+  }
+}

lib/service/firmware_update_service.dart

@@ -0,0 +1,690 @@
+import 'dart:async';
+
+import 'package:abawo_bt_app/controller/bluetooth.dart';
+import 'package:abawo_bt_app/model/shifter_types.dart';
+import 'package:abawo_bt_app/service/dfu_protocol.dart';
+import 'package:abawo_bt_app/service/shifter_service.dart';
+import 'package:anyhow/anyhow.dart';
+
+const int _initialAckSequence = 0xFF;
+
+class FirmwareUpdateService {
+  FirmwareUpdateService({
+    required FirmwareUpdateTransport transport,
+    this.defaultWindowSize = 8,
+    this.maxNoProgressRetries = 5,
+    this.defaultAckTimeout = const Duration(milliseconds: 800),
+    this.defaultPostFinishResetTimeout = const Duration(seconds: 8),
+    this.defaultReconnectTimeout = const Duration(seconds: 12),
+    this.defaultVerificationTimeout = const Duration(seconds: 5),
+  }) : _transport = transport;
+
+  final FirmwareUpdateTransport _transport;
+  final int defaultWindowSize;
+  final int maxNoProgressRetries;
+  final Duration defaultAckTimeout;
+  final Duration defaultPostFinishResetTimeout;
+  final Duration defaultReconnectTimeout;
+  final Duration defaultVerificationTimeout;
+
+  final StreamController<DfuUpdateProgress> _progressController =
+      StreamController<DfuUpdateProgress>.broadcast();
+
+  DfuUpdateProgress _currentProgress = const DfuUpdateProgress(
+    state: DfuUpdateState.idle,
+    totalBytes: 0,
+    sentBytes: 0,
+    lastAckedSequence: _initialAckSequence,
+    sessionId: 0,
+    flags: DfuUpdateFlags(),
+  );
+
+  StreamSubscription<List<int>>? _ackSubscription;
+  Completer<void>? _ackSignal;
+  Completer<void>? _cancelSignal;
+  int _ackEventCount = 0;
+  String? _ackStreamError;
+  bool _isRunning = false;
+  bool _cancelRequested = false;
+  int _latestAckSequence = _initialAckSequence;
+  int _ackedFrames = 0;
+  int _totalFrames = 0;
+  int _totalBytes = 0;
+
+  Stream<DfuUpdateProgress> get progressStream => _progressController.stream;
+
+  DfuUpdateProgress get currentProgress => _currentProgress;
+
+  bool get isUpdating => _isRunning;
+
+  Future<Result<void>> startUpdate({
+    required List<int> imageBytes,
+    required int sessionId,
+    DfuUpdateFlags flags = const DfuUpdateFlags(),
+    int requestedMtu = universalShifterDfuPreferredMtu,
+    int? windowSize,
+    Duration? ackTimeout,
+    int? noProgressRetries,
+    Duration? postFinishResetTimeout,
+    Duration? reconnectTimeout,
+    Duration? verificationTimeout,
+  }) async {
+    if (_isRunning) {
+      return bail(
+          'Firmware update is already running. Cancel or wait for completion before starting a new upload.');
+    }
+    if (imageBytes.isEmpty) {
+      return bail(
+          'Firmware image is empty. Select a valid .bin file and retry.');
+    }
+
+    final effectiveWindowSize = windowSize ?? defaultWindowSize;
+    final effectiveAckTimeout = ackTimeout ?? defaultAckTimeout;
+    final effectiveNoProgressRetries =
+        noProgressRetries ?? maxNoProgressRetries;
+    final effectivePostFinishResetTimeout =
+        postFinishResetTimeout ?? defaultPostFinishResetTimeout;
+    final effectiveReconnectTimeout =
+        reconnectTimeout ?? defaultReconnectTimeout;
+    final effectiveVerificationTimeout =
+        verificationTimeout ?? defaultVerificationTimeout;
+
+    if (effectiveWindowSize <= 0) {
+      return bail(
+          'DFU window size must be at least 1 frame. Got $effectiveWindowSize.');
+    }
+    if (effectiveNoProgressRetries < 0) {
+      return bail(
+          'No-progress retry limit cannot be negative. Got $effectiveNoProgressRetries.');
+    }
+
+    _isRunning = true;
+    _cancelRequested = false;
+    _cancelSignal = Completer<void>();
+    _ackSignal = null;
+    _ackEventCount = 0;
+    _ackStreamError = null;
+    _latestAckSequence = _initialAckSequence;
+    _ackedFrames = 0;
+    _totalFrames =
+        (imageBytes.length + universalShifterDfuFramePayloadSizeBytes - 1) ~/
+            universalShifterDfuFramePayloadSizeBytes;
+    _totalBytes = imageBytes.length;
+
+    final normalizedSessionId = sessionId & 0xFF;
+    final crc32 = DfuProtocol.crc32(imageBytes);
+    final frames = DfuProtocol.buildDataFrames(imageBytes);
+    var shouldAbortForCleanup = false;
+
+    _emitProgress(
+      state: DfuUpdateState.starting,
+      totalBytes: imageBytes.length,
+      sentBytes: 0,
+      lastAckedSequence: _initialAckSequence,
+      sessionId: normalizedSessionId,
+      flags: flags,
+    );
+
+    try {
+      final preflightResult = await _transport.runPreflight(
+        requestedMtu: requestedMtu,
+      );
+      if (preflightResult.isErr()) {
+        throw _DfuFailure(
+          'DFU preflight check failed due to transport error: ${preflightResult.unwrapErr()}',
+        );
+      }
+      final preflight = preflightResult.unwrap();
+      if (!preflight.canStart) {
+        throw _DfuFailure(
+          preflight.message ??
+              'DFU preflight failed. Ensure button connection and MTU are ready, then retry.',
+        );
+      }
+
+      await _ackSubscription?.cancel();
+      _ackSubscription = _transport.subscribeToAck().listen(
+        _handleAckPayload,
+        onError: (Object error) {
+          _ackStreamError =
+              'ACK indication stream failed: $error. Reconnect and retry the update.';
+          _signalAckWaiters();
+        },
+      );
+
+      _emitProgress(state: DfuUpdateState.waitingForAck);
+      final startEventCount = _ackEventCount;
+      final startWriteResult = await _transport.writeControl(
+        DfuProtocol.encodeStartPayload(
+          DfuStartPayload(
+            totalLength: imageBytes.length,
+            imageCrc32: crc32,
+            sessionId: normalizedSessionId,
+            flags: flags.rawValue,
+          ),
+        ),
+      );
+      if (startWriteResult.isErr()) {
+        throw _DfuFailure(
+          'Failed to send DFU START command: ${startWriteResult.unwrapErr()}',
+        );
+      }
+      shouldAbortForCleanup = true;
+
+      final initialAck = await _waitForInitialAck(
+        afterEventCount: startEventCount,
+        timeout: effectiveAckTimeout,
+      );
+      if (initialAck != _initialAckSequence) {
+        throw _DfuFailure(
+          'Device did not acknowledge START correctly (expected ACK 0xFF, got 0x${initialAck.toRadixString(16).padLeft(2, '0').toUpperCase()}). Send ABORT, reconnect if needed, and retry.',
+        );
+      }
+
+      _emitProgress(state: DfuUpdateState.transferring);
+
+      var nextFrameIndex = 0;
+      var retriesWithoutProgress = 0;
+
+      while (_ackedFrames < _totalFrames) {
+        _throwIfCancelled();
+        _throwIfAckStreamErrored();
+
+        final ackedBeforeWindow = _ackedFrames;
+        final endExclusive =
+            (nextFrameIndex + effectiveWindowSize).clamp(0, frames.length);
+
+        for (var frameIndex = nextFrameIndex;
+            frameIndex < endExclusive;
+            frameIndex++) {
+          _throwIfCancelled();
+          final writeResult =
+              await _transport.writeDataFrame(frames[frameIndex].bytes);
+          if (writeResult.isErr()) {
+            throw _DfuFailure(
+              'Failed sending DFU data frame #$frameIndex (seq 0x${frames[frameIndex].sequence.toRadixString(16).padLeft(2, '0').toUpperCase()}): ${writeResult.unwrapErr()}',
+            );
+          }
+        }
+
+        nextFrameIndex = endExclusive;
+
+        if (_ackedFrames > ackedBeforeWindow) {
+          retriesWithoutProgress = 0;
+          nextFrameIndex = _ackedFrames;
+          continue;
+        }
+
+        final gotProgress = await _waitForAckProgress(
+          ackedFramesBeforeWait: ackedBeforeWindow,
+          timeout: effectiveAckTimeout,
+        );
+
+        if (gotProgress) {
+          retriesWithoutProgress = 0;
+          nextFrameIndex = _ackedFrames;
+          continue;
+        }
+
+        retriesWithoutProgress += 1;
+        if (retriesWithoutProgress > effectiveNoProgressRetries) {
+          throw _DfuFailure(
+            'Upload stalled: no ACK progress after $retriesWithoutProgress retries (last ACK 0x${_latestAckSequence.toRadixString(16).padLeft(2, '0').toUpperCase()}). Check BLE signal quality and retry.',
+          );
+        }
+
+        nextFrameIndex = _ackedFrames;
+      }
+
+      _emitProgress(
+          state: DfuUpdateState.finishing, sentBytes: imageBytes.length);
+      final finishResult =
+          await _transport.writeControl(DfuProtocol.encodeFinishPayload());
+      if (finishResult.isErr()) {
+        throw _DfuFailure(
+          'Failed to send DFU FINISH command: ${finishResult.unwrapErr()}',
+        );
+      }
+
+      await _ackSubscription?.cancel();
+      _ackSubscription = null;
+
+      final resetDisconnectResult =
+          await _transport.waitForExpectedResetDisconnect(
+        timeout: effectivePostFinishResetTimeout,
+      );
+      if (resetDisconnectResult.isErr()) {
+        throw _DfuFailure(
+          'Device did not perform the expected post-FINISH reset disconnect: ${resetDisconnectResult.unwrapErr()}',
+        );
+      }
+
+      final reconnectResult = await _transport.reconnectForVerification(
+        timeout: effectiveReconnectTimeout,
+      );
+      if (reconnectResult.isErr()) {
+        throw _DfuFailure(
+          'Device did not reconnect after DFU reset: ${reconnectResult.unwrapErr()}',
+        );
+      }
+
+      final verificationResult = await _transport.verifyDeviceReachable(
+        timeout: effectiveVerificationTimeout,
+      );
+      if (verificationResult.isErr()) {
+        throw _DfuFailure(
+          'Device reconnected but post-update verification failed: ${verificationResult.unwrapErr()} '
+          'Firmware version cannot be compared yet because the device does not expose a version characteristic.',
+        );
+      }
+
+      shouldAbortForCleanup = false;
+      _emitProgress(
+          state: DfuUpdateState.completed, sentBytes: imageBytes.length);
+      return Ok(null);
+    } on _DfuCancelled {
+      if (shouldAbortForCleanup) {
+        await _sendAbortForCleanup();
+      }
+      _emitProgress(state: DfuUpdateState.aborted);
+      return bail('Firmware update canceled by user.');
+    } on _DfuFailure catch (failure) {
+      if (shouldAbortForCleanup) {
+        await _sendAbortForCleanup();
+      }
+      _emitProgress(
+          state: DfuUpdateState.failed, errorMessage: failure.message);
+      return bail(failure.message);
+    } catch (error) {
+      if (shouldAbortForCleanup) {
+        await _sendAbortForCleanup();
+      }
+      final message =
+          'Firmware update failed unexpectedly: $error. Reconnect to the button and retry.';
+      _emitProgress(state: DfuUpdateState.failed, errorMessage: message);
+      return bail(message);
+    } finally {
+      await _ackSubscription?.cancel();
+      _ackSubscription = null;
+      _isRunning = false;
+      _cancelRequested = false;
+      _cancelSignal = null;
+      _ackSignal = null;
+      _ackEventCount = 0;
+      _ackStreamError = null;
+      _latestAckSequence = _currentProgress.lastAckedSequence;
+      _ackedFrames = 0;
+      _totalFrames = 0;
+      _totalBytes = 0;
+    }
+  }
+
+  Future<void> cancelUpdate() async {
+    if (!_isRunning || _cancelRequested) {
+      return;
+    }
+    _cancelRequested = true;
+    _cancelSignal?.complete();
+    _signalAckWaiters();
+  }
+
+  Future<void> dispose() async {
+    await cancelUpdate();
+    await _ackSubscription?.cancel();
+    _ackSubscription = null;
+    await _progressController.close();
+  }
+
+  void _handleAckPayload(List<int> payload) {
+    try {
+      final sequence = DfuProtocol.parseAckPayload(payload);
+      final previousAck = _latestAckSequence;
+      _latestAckSequence = sequence;
+
+      if (_totalFrames > 0 &&
+          _currentProgress.state == DfuUpdateState.transferring) {
+        final delta = DfuProtocol.sequenceDistance(previousAck, sequence);
+        if (delta > 0) {
+          _ackedFrames = (_ackedFrames + delta).clamp(0, _totalFrames);
+        }
+
+        _emitProgress(
+          lastAckedSequence: sequence,
+          sentBytes:
+              _ackedBytesFromFrames(_ackedFrames, _totalFrames, _totalBytes),
+        );
+      } else {
+        _emitProgress(lastAckedSequence: sequence);
+      }
+    } on FormatException catch (error) {
+      _ackStreamError =
+          'Received malformed ACK indication: $error. Reconnect and retry.';
+    } finally {
+      _ackEventCount += 1;
+      _signalAckWaiters();
+    }
+  }
+
+  void _emitProgress({
+    DfuUpdateState? state,
+    int? totalBytes,
+    int? sentBytes,
+    int? lastAckedSequence,
+    int? sessionId,
+    DfuUpdateFlags? flags,
+    String? errorMessage,
+  }) {
+    final next = DfuUpdateProgress(
+      state: state ?? _currentProgress.state,
+      totalBytes: totalBytes ?? _currentProgress.totalBytes,
+      sentBytes: sentBytes ?? _currentProgress.sentBytes,
+      lastAckedSequence:
+          lastAckedSequence ?? _currentProgress.lastAckedSequence,
+      sessionId: sessionId ?? _currentProgress.sessionId,
+      flags: flags ?? _currentProgress.flags,
+      errorMessage: errorMessage,
+    );
+    _currentProgress = next;
+    _progressController.add(next);
+  }
+
+  Future<int> _waitForInitialAck({
+    required int afterEventCount,
+    required Duration timeout,
+  }) async {
+    final deadline = DateTime.now().add(timeout);
+    var observedEvents = afterEventCount;
+
+    while (true) {
+      _throwIfCancelled();
+      _throwIfAckStreamErrored();
+      final remaining = deadline.difference(DateTime.now());
+      if (remaining <= Duration.zero) {
+        throw _DfuFailure(
+          'Timed out waiting for initial DFU ACK after START. Ensure indications are enabled and retry.',
+        );
+      }
+
+      final gotEvent = await _waitForNextAckEvent(
+        afterEventCount: observedEvents,
+        timeout: remaining,
+      );
+      if (!gotEvent) {
+        continue;
+      }
+      observedEvents = _ackEventCount;
+      return _latestAckSequence;
+    }
+  }
+
+  Future<bool> _waitForAckProgress({
+    required int ackedFramesBeforeWait,
+    required Duration timeout,
+  }) async {
+    final deadline = DateTime.now().add(timeout);
+    var observedEvents = _ackEventCount;
+
+    while (true) {
+      _throwIfCancelled();
+      _throwIfAckStreamErrored();
+
+      if (_ackedFrames > ackedFramesBeforeWait) {
+        return true;
+      }
+
+      final remaining = deadline.difference(DateTime.now());
+      if (remaining <= Duration.zero) {
+        return false;
+      }
+
+      final gotEvent = await _waitForNextAckEvent(
+        afterEventCount: observedEvents,
+        timeout: remaining,
+      );
+
+      if (!gotEvent) {
+        continue;
+      }
+
+      observedEvents = _ackEventCount;
+    }
+  }
+
+  Future<bool> _waitForNextAckEvent({
+    required int afterEventCount,
+    required Duration timeout,
+  }) async {
+    if (_ackEventCount > afterEventCount) {
+      return true;
+    }
+
+    _ackSignal ??= Completer<void>();
+    final signal = _ackSignal!;
+
+    try {
+      await Future.any<void>([
+        signal.future,
+        _cancelSignal?.future ?? Future<void>.value(),
+      ]).timeout(timeout);
+    } on TimeoutException {
+      return false;
+    }
+
+    if (identical(_ackSignal, signal)) {
+      _ackSignal = null;
+    }
+
+    _throwIfCancelled();
+    _throwIfAckStreamErrored();
+    return _ackEventCount > afterEventCount;
+  }
+
+  void _throwIfCancelled() {
+    if (_cancelRequested) {
+      throw const _DfuCancelled();
+    }
+  }
+
+  void _throwIfAckStreamErrored() {
+    final error = _ackStreamError;
+    if (error != null) {
+      throw _DfuFailure(error);
+    }
+  }
+
+  Future<void> _sendAbortForCleanup() async {
+    final result =
+        await _transport.writeControl(DfuProtocol.encodeAbortPayload());
+    if (result.isErr()) {
+      final cleanupMessage =
+          'Could not send DFU ABORT during cleanup: ${result.unwrapErr()}';
+      if (_currentProgress.state == DfuUpdateState.failed &&
+          _currentProgress.errorMessage != null) {
+        _emitProgress(
+          errorMessage: '${_currentProgress.errorMessage} $cleanupMessage',
+        );
+      }
+    }
+  }
+
+  void _signalAckWaiters() {
+    final signal = _ackSignal;
+    if (signal != null && !signal.isCompleted) {
+      signal.complete();
+    }
+  }
+
+  int _ackedBytesFromFrames(int ackedFrames, int totalFrames, int totalBytes) {
+    if (totalFrames == 0 || ackedFrames <= 0) {
+      return 0;
+    }
+    if (ackedFrames >= totalFrames) {
+      return totalBytes;
+    }
+    return ackedFrames * universalShifterDfuFramePayloadSizeBytes;
+  }
+}
+
+abstract interface class FirmwareUpdateTransport {
+  Future<Result<DfuPreflightResult>> runPreflight({required int requestedMtu});
+
+  Stream<List<int>> subscribeToAck();
+
+  Future<Result<void>> writeControl(List<int> payload);
+
+  Future<Result<void>> writeDataFrame(List<int> frame);
+
+  Future<Result<void>> waitForExpectedResetDisconnect({
+    required Duration timeout,
+  });
+
+  Future<Result<void>> reconnectForVerification({
+    required Duration timeout,
+  });
+
+  /// Verifies that the device is reachable after reconnect.
+  ///
+  /// Current limitation: strict firmware version comparison is not possible
+  /// yet because no firmware version characteristic is exposed by the device.
+  Future<Result<void>> verifyDeviceReachable({
+    required Duration timeout,
+  });
+}
+
+class ShifterFirmwareUpdateTransport implements FirmwareUpdateTransport {
+  ShifterFirmwareUpdateTransport({
+    required this.shifterService,
+    required this.bluetoothController,
+    required this.buttonDeviceId,
+  });
+
+  final ShifterService shifterService;
+  final BluetoothController bluetoothController;
+  final String buttonDeviceId;
+
+  @override
+  Future<Result<DfuPreflightResult>> runPreflight({
+    required int requestedMtu,
+  }) {
+    return shifterService.runDfuPreflight(requestedMtu: requestedMtu);
+  }
+
+  @override
+  Stream<List<int>> subscribeToAck() {
+    return bluetoothController.subscribeToCharacteristic(
+      buttonDeviceId,
+      universalShifterControlServiceUuid,
+      universalShifterDfuAckCharacteristicUuid,
+    );
+  }
+
+  @override
+  Future<Result<void>> writeControl(List<int> payload) {
+    return bluetoothController.writeCharacteristic(
+      buttonDeviceId,
+      universalShifterControlServiceUuid,
+      universalShifterDfuControlCharacteristicUuid,
+      payload,
+    );
+  }
+
+  @override
+  Future<Result<void>> writeDataFrame(List<int> frame) {
+    return bluetoothController.writeCharacteristic(
+      buttonDeviceId,
+      universalShifterControlServiceUuid,
+      universalShifterDfuDataCharacteristicUuid,
+      frame,
+      withResponse: false,
+    );
+  }
+
+  @override
+  Future<Result<void>> waitForExpectedResetDisconnect({
+    required Duration timeout,
+  }) async {
+    final currentState = bluetoothController.currentConnectionState;
+    if (currentState.$1 == ConnectionStatus.disconnected) {
+      return Ok(null);
+    }
+
+    try {
+      await bluetoothController.connectionStateStream
+          .firstWhere((state) => state.$1 == ConnectionStatus.disconnected)
+          .timeout(timeout);
+      return Ok(null);
+    } on TimeoutException {
+      return bail(
+        'Timed out after ${timeout.inMilliseconds}ms waiting for the expected reset disconnect.',
+      );
+    } catch (error) {
+      return bail('Failed while waiting for expected reset disconnect: $error');
+    }
+  }
+
+  @override
+  Future<Result<void>> reconnectForVerification({
+    required Duration timeout,
+  }) async {
+    final connectResult =
+        await bluetoothController.connectById(buttonDeviceId, timeout: timeout);
+    if (connectResult.isErr()) {
+      return bail(connectResult.unwrapErr());
+    }
+
+    final currentState = bluetoothController.currentConnectionState;
+    if (currentState.$1 == ConnectionStatus.connected &&
+        currentState.$2 == buttonDeviceId) {
+      return Ok(null);
+    }
+
+    try {
+      await bluetoothController.connectionStateStream
+          .firstWhere(
+            (state) =>
+                state.$1 == ConnectionStatus.connected &&
+                state.$2 == buttonDeviceId,
+          )
+          .timeout(timeout);
+      return Ok(null);
+    } on TimeoutException {
+      return bail(
+        'Timed out after ${timeout.inMilliseconds}ms waiting for reconnect.',
+      );
+    } catch (error) {
+      return bail('Reconnect wait failed: $error');
+    }
+  }
+
+  @override
+  Future<Result<void>> verifyDeviceReachable({
+    required Duration timeout,
+  }) async {
+    try {
+      final statusResult = await shifterService.readStatus().timeout(timeout);
+      if (statusResult.isErr()) {
+        return bail(statusResult.unwrapErr());
+      }
+      return Ok(null);
+    } on TimeoutException {
+      return bail(
+        'Timed out after ${timeout.inMilliseconds}ms while reading status for post-update verification.',
+      );
+    } catch (error) {
+      return bail('Post-update verification failed: $error');
+    }
+  }
+}
+
+class _DfuFailure implements Exception {
+  const _DfuFailure(this.message);
+
+  final String message;
+
+  @override
+  String toString() => message;
+}
+
+class _DfuCancelled implements Exception {
+  const _DfuCancelled();
+}

lib/service/shifter_service.dart

@@ -0,0 +1,325 @@
+import 'dart:async';
+
+import 'package:abawo_bt_app/controller/bluetooth.dart';
+import 'package:abawo_bt_app/model/shifter_types.dart';
+import 'package:anyhow/anyhow.dart';
+
+class ShifterService {
+  ShifterService({
+    BluetoothController? bluetooth,
+    required this.buttonDeviceId,
+    DfuPreflightBluetoothAdapter? dfuPreflightBluetooth,
+  })  : _bluetooth = bluetooth,
+        _dfuPreflightBluetooth =
+            dfuPreflightBluetooth ?? _BluetoothDfuPreflightAdapter(bluetooth!) {
+    if (bluetooth == null && dfuPreflightBluetooth == null) {
+      throw ArgumentError(
+        'Either bluetooth or dfuPreflightBluetooth must be provided.',
+      );
+    }
+  }
+
+  final BluetoothController? _bluetooth;
+  final String buttonDeviceId;
+  final DfuPreflightBluetoothAdapter _dfuPreflightBluetooth;
+
+  BluetoothController get _requireBluetooth {
+    final bluetooth = _bluetooth;
+    if (bluetooth == null) {
+      throw StateError('Bluetooth controller is not available.');
+    }
+    return bluetooth;
+  }
+
+  final StreamController<CentralStatus> _statusController =
+      StreamController<CentralStatus>.broadcast();
+  StreamSubscription<List<int>>? _statusSubscription;
+
+  Stream<CentralStatus> get statusStream => _statusController.stream;
+
+  static const int _gearRatioSlots = 32;
+  static const int _defaultGearIndexOffset = _gearRatioSlots;
+  static const int _gearRatioPayloadBytes = _gearRatioSlots + 1;
+  static const double _maxGearRatio = 255 / 64;
+  static const int _gearRatioWriteMtu = 64;
+
+  Future<Result<void>> writeConnectToAddress(String bikeDeviceId) async {
+    try {
+      final payload = parseMacToLittleEndianBytes(bikeDeviceId);
+      return _requireBluetooth.writeCharacteristic(
+        buttonDeviceId,
+        universalShifterControlServiceUuid,
+        universalShifterConnectToAddrCharacteristicUuid,
+        payload,
+      );
+    } on FormatException catch (e) {
+      return bail('Could not parse bike address "$bikeDeviceId": $e');
+    } catch (e) {
+      return bail('Failed writing connect address: $e');
+    }
+  }
+
+  Future<Result<void>> writeCommand(UniversalShifterCommand command) {
+    return _requireBluetooth.writeCharacteristic(
+      buttonDeviceId,
+      universalShifterControlServiceUuid,
+      universalShifterCommandCharacteristicUuid,
+      [command.value],
+    );
+  }
+
+  Future<Result<void>> connectButtonToBike(String bikeDeviceId) async {
+    final addrRes = await writeConnectToAddress(bikeDeviceId);
+    if (addrRes.isErr()) {
+      return addrRes;
+    }
+    return writeCommand(UniversalShifterCommand.connectToDevice);
+  }
+
+  Future<Result<GearRatiosData>> readGearRatios() async {
+    final readRes = await _requireBluetooth.readCharacteristic(
+      buttonDeviceId,
+      universalShifterControlServiceUuid,
+      universalShifterGearRatiosCharacteristicUuid,
+    );
+    if (readRes.isErr()) {
+      return bail(readRes.unwrapErr());
+    }
+
+    final raw = readRes.unwrap();
+    if (raw.length > _gearRatioPayloadBytes) {
+      return bail(
+        'Invalid gear ratio payload length: expected at most $_gearRatioPayloadBytes, got ${raw.length}',
+      );
+    }
+
+    final normalizedRaw = List<int>.filled(
+      _gearRatioPayloadBytes,
+      0,
+      growable: false,
+    );
+    for (var i = 0; i < raw.length; i++) {
+      normalizedRaw[i] = raw[i];
+    }
+
+    final ratios = <double>[];
+    for (var i = 0; i < _gearRatioSlots; i++) {
+      final value = normalizedRaw[i];
+      if (value == 0) {
+        break;
+      }
+      ratios.add(_decodeGearRatio(value));
+    }
+
+    final defaultIndexRaw = normalizedRaw[_defaultGearIndexOffset];
+    final defaultGearIndex = ratios.isEmpty
+        ? 0
+        : defaultIndexRaw.clamp(0, ratios.length - 1).toInt();
+    return Ok(
+      GearRatiosData(
+        ratios: ratios,
+        defaultGearIndex: defaultGearIndex,
+      ),
+    );
+  }
+
+  Future<Result<void>> writeGearRatios(GearRatiosData data) async {
+    final mtuResult = await _requireBluetooth.requestMtu(
+      buttonDeviceId,
+      mtu: _gearRatioWriteMtu,
+    );
+    if (mtuResult.isErr()) {
+      return bail(
+          'Could not request MTU before writing gear ratios: ${mtuResult.unwrapErr()}');
+    }
+
+    final payload =
+        List<int>.filled(_gearRatioPayloadBytes, 0, growable: false);
+    final ratios = data.ratios;
+    final limit =
+        ratios.length < _gearRatioSlots ? ratios.length : _gearRatioSlots;
+    for (var i = 0; i < limit; i++) {
+      payload[i] = _encodeGearRatio(ratios[i]);
+    }
+    payload[_defaultGearIndexOffset] =
+        limit == 0 ? 0 : data.defaultGearIndex.clamp(0, limit - 1).toInt();
+
+    return _requireBluetooth.writeCharacteristic(
+      buttonDeviceId,
+      universalShifterControlServiceUuid,
+      universalShifterGearRatiosCharacteristicUuid,
+      payload,
+    );
+  }
+
+  Future<Result<CentralStatus>> readStatus() async {
+    final readRes = await _requireBluetooth.readCharacteristic(
+      buttonDeviceId,
+      universalShifterControlServiceUuid,
+      universalShifterStatusCharacteristicUuid,
+    );
+    if (readRes.isErr()) {
+      return bail(readRes.unwrapErr());
+    }
+
+    try {
+      return Ok(CentralStatus.fromCborBytes(readRes.unwrap()));
+    } catch (e) {
+      return bail('Failed to decode status payload: $e');
+    }
+  }
+
+  Future<Result<DfuPreflightResult>> runDfuPreflight({
+    int requestedMtu = universalShifterDfuPreferredMtu,
+  }) async {
+    final currentConnection = _dfuPreflightBluetooth.currentConnectionState;
+    final connectionStatus = currentConnection.$1;
+    final connectedDeviceId = currentConnection.$2;
+
+    if (connectionStatus != ConnectionStatus.connected ||
+        connectedDeviceId == null) {
+      return Ok(
+        DfuPreflightResult.failed(
+          requestedMtu: requestedMtu,
+          failureReason: DfuPreflightFailureReason.deviceNotConnected,
+          message:
+              'No button connection is active. Connect the target button, then retry the firmware update.',
+        ),
+      );
+    }
+
+    if (connectedDeviceId != buttonDeviceId) {
+      return Ok(
+        DfuPreflightResult.failed(
+          requestedMtu: requestedMtu,
+          failureReason: DfuPreflightFailureReason.wrongConnectedDevice,
+          message:
+              'Connected to a different button ($connectedDeviceId). Reconnect to $buttonDeviceId before starting the firmware update.',
+        ),
+      );
+    }
+
+    final mtuResult = await _dfuPreflightBluetooth.requestMtuAndGetValue(
+      buttonDeviceId,
+      mtu: requestedMtu,
+    );
+    if (mtuResult.isErr()) {
+      return Ok(
+        DfuPreflightResult.failed(
+          requestedMtu: requestedMtu,
+          failureReason: DfuPreflightFailureReason.mtuRequestFailed,
+          message:
+              'Could not negotiate BLE MTU for DFU. Move closer to the button and retry. Details: ${mtuResult.unwrapErr()}',
+        ),
+      );
+    }
+
+    final negotiatedMtu = mtuResult.unwrap();
+    if (negotiatedMtu < universalShifterDfuMinimumMtu) {
+      return Ok(
+        DfuPreflightResult.failed(
+          requestedMtu: requestedMtu,
+          negotiatedMtu: negotiatedMtu,
+          failureReason: DfuPreflightFailureReason.mtuTooLow,
+          message:
+              'Negotiated MTU $negotiatedMtu is too small for 64-byte DFU frames. Need at least $universalShifterDfuMinimumMtu bytes MTU (64-byte frame + $universalShifterAttWriteOverheadBytes-byte ATT overhead). Reconnect and retry.',
+        ),
+      );
+    }
+
+    return Ok(
+      DfuPreflightResult.ready(
+        requestedMtu: requestedMtu,
+        negotiatedMtu: negotiatedMtu,
+      ),
+    );
+  }
+
+  void startStatusNotifications() {
+    if (_statusSubscription != null) {
+      return;
+    }
+
+    _statusSubscription = _requireBluetooth
+        .subscribeToCharacteristic(
+      buttonDeviceId,
+      universalShifterControlServiceUuid,
+      universalShifterStatusCharacteristicUuid,
+    )
+        .listen(
+      (data) {
+        try {
+          final status = CentralStatus.fromCborBytes(data);
+          _statusController.add(status);
+        } catch (_) {
+          // Ignore malformed payloads but keep stream alive.
+        }
+      },
+      onError: (_) {
+        // Keep UI running; reconnection logic is handled elsewhere.
+      },
+    );
+  }
+
+  Future<void> stopStatusNotifications() async {
+    await _statusSubscription?.cancel();
+    _statusSubscription = null;
+  }
+
+  Future<void> dispose() async {
+    await stopStatusNotifications();
+    await _statusController.close();
+  }
+
+  int _encodeGearRatio(double value) {
+    if (value <= 0) {
+      return 0;
+    }
+    final clamped = value.clamp(0, _maxGearRatio);
+    final scaled = (clamped * 64).round();
+    if (scaled <= 0) {
+      return 1;
+    }
+    return scaled.clamp(1, 255);
+  }
+
+  double _decodeGearRatio(int raw) {
+    return raw / 64.0;
+  }
+}
+
+abstract interface class DfuPreflightBluetoothAdapter {
+  (ConnectionStatus, String?) get currentConnectionState;
+  Future<Result<int>> requestMtuAndGetValue(
+    String deviceId, {
+    required int mtu,
+  });
+}
+
+class _BluetoothDfuPreflightAdapter implements DfuPreflightBluetoothAdapter {
+  const _BluetoothDfuPreflightAdapter(this._bluetooth);
+
+  final BluetoothController _bluetooth;
+
+  @override
+  (ConnectionStatus, String?) get currentConnectionState =>
+      _bluetooth.currentConnectionState;
+
+  @override
+  Future<Result<int>> requestMtuAndGetValue(
+    String deviceId, {
+    required int mtu,
+  }) {
+    return _bluetooth.requestMtuAndGetValue(deviceId, mtu: mtu);
+  }
+}
+
+class GearRatiosData {
+  const GearRatiosData({
+    required this.ratios,
+    required this.defaultGearIndex,
+  });
+
+  final List<double> ratios;
+  final int defaultGearIndex;
+}

lib/src/rust/api/simple.dart

@@ -0,0 +1,10 @@
+// This file is automatically generated, so please do not edit it.
+// @generated by `flutter_rust_bridge`@ 2.11.1.
+
+// ignore_for_file: invalid_use_of_internal_member, unused_import, unnecessary_import
+
+import '../frb_generated.dart';
+import 'package:flutter_rust_bridge/flutter_rust_bridge_for_generated.dart';
+
+String greet({required String name}) =>
+    RustLib.instance.api.crateApiSimpleGreet(name: name);

lib/src/rust/frb_generated.dart

@@ -0,0 +1,240 @@
+// This file is automatically generated, so please do not edit it.
+// @generated by `flutter_rust_bridge`@ 2.11.1.
+
+// ignore_for_file: unused_import, unused_element, unnecessary_import, duplicate_ignore, invalid_use_of_internal_member, annotate_overrides, non_constant_identifier_names, curly_braces_in_flow_control_structures, prefer_const_literals_to_create_immutables, unused_field
+
+import 'api/simple.dart';
+import 'dart:async';
+import 'dart:convert';
+import 'frb_generated.dart';
+import 'frb_generated.io.dart'
+    if (dart.library.js_interop) 'frb_generated.web.dart';
+import 'package:flutter_rust_bridge/flutter_rust_bridge_for_generated.dart';
+
+/// Main entrypoint of the Rust API
+class RustLib extends BaseEntrypoint<RustLibApi, RustLibApiImpl, RustLibWire> {
+  @internal
+  static final instance = RustLib._();
+
+  RustLib._();
+
+  /// Initialize flutter_rust_bridge
+  static Future<void> init({
+    RustLibApi? api,
+    BaseHandler? handler,
+    ExternalLibrary? externalLibrary,
+    bool forceSameCodegenVersion = true,
+  }) async {
+    await instance.initImpl(
+      api: api,
+      handler: handler,
+      externalLibrary: externalLibrary,
+      forceSameCodegenVersion: forceSameCodegenVersion,
+    );
+  }
+
+  /// Initialize flutter_rust_bridge in mock mode.
+  /// No libraries for FFI are loaded.
+  static void initMock({
+    required RustLibApi api,
+  }) {
+    instance.initMockImpl(
+      api: api,
+    );
+  }
+
+  /// Dispose flutter_rust_bridge
+  ///
+  /// The call to this function is optional, since flutter_rust_bridge (and everything else)
+  /// is automatically disposed when the app stops.
+  static void dispose() => instance.disposeImpl();
+
+  @override
+  ApiImplConstructor<RustLibApiImpl, RustLibWire> get apiImplConstructor =>
+      RustLibApiImpl.new;
+
+  @override
+  WireConstructor<RustLibWire> get wireConstructor =>
+      RustLibWire.fromExternalLibrary;
+
+  @override
+  Future<void> executeRustInitializers() async {
+    await api.crateApiSimpleInitApp();
+  }
+
+  @override
+  ExternalLibraryLoaderConfig get defaultExternalLibraryLoaderConfig =>
+      kDefaultExternalLibraryLoaderConfig;
+
+  @override
+  String get codegenVersion => '2.11.1';
+
+  @override
+  int get rustContentHash => -1918914929;
+
+  static const kDefaultExternalLibraryLoaderConfig =
+      ExternalLibraryLoaderConfig(
+    stem: 'rust_lib_abawo_bt_app',
+    ioDirectory: 'rust/target/release/',
+    webPrefix: 'pkg/',
+  );
+}
+
+abstract class RustLibApi extends BaseApi {
+  String crateApiSimpleGreet({required String name});
+
+  Future<void> crateApiSimpleInitApp();
+}
+
+class RustLibApiImpl extends RustLibApiImplPlatform implements RustLibApi {
+  RustLibApiImpl({
+    required super.handler,
+    required super.wire,
+    required super.generalizedFrbRustBinding,
+    required super.portManager,
+  });
+
+  @override
+  String crateApiSimpleGreet({required String name}) {
+    return handler.executeSync(SyncTask(
+      callFfi: () {
+        final serializer = SseSerializer(generalizedFrbRustBinding);
+        sse_encode_String(name, serializer);
+        return pdeCallFfi(generalizedFrbRustBinding, serializer, funcId: 1)!;
+      },
+      codec: SseCodec(
+        decodeSuccessData: sse_decode_String,
+        decodeErrorData: null,
+      ),
+      constMeta: kCrateApiSimpleGreetConstMeta,
+      argValues: [name],
+      apiImpl: this,
+    ));
+  }
+
+  TaskConstMeta get kCrateApiSimpleGreetConstMeta => const TaskConstMeta(
+        debugName: "greet",
+        argNames: ["name"],
+      );
+
+  @override
+  Future<void> crateApiSimpleInitApp() {
+    return handler.executeNormal(NormalTask(
+      callFfi: (port_) {
+        final serializer = SseSerializer(generalizedFrbRustBinding);
+        pdeCallFfi(generalizedFrbRustBinding, serializer,
+            funcId: 2, port: port_);
+      },
+      codec: SseCodec(
+        decodeSuccessData: sse_decode_unit,
+        decodeErrorData: null,
+      ),
+      constMeta: kCrateApiSimpleInitAppConstMeta,
+      argValues: [],
+      apiImpl: this,
+    ));
+  }
+
+  TaskConstMeta get kCrateApiSimpleInitAppConstMeta => const TaskConstMeta(
+        debugName: "init_app",
+        argNames: [],
+      );
+
+  @protected
+  String dco_decode_String(dynamic raw) {
+    // Codec=Dco (DartCObject based), see doc to use other codecs
+    return raw as String;
+  }
+
+  @protected
+  Uint8List dco_decode_list_prim_u_8_strict(dynamic raw) {
+    // Codec=Dco (DartCObject based), see doc to use other codecs
+    return raw as Uint8List;
+  }
+
+  @protected
+  int dco_decode_u_8(dynamic raw) {
+    // Codec=Dco (DartCObject based), see doc to use other codecs
+    return raw as int;
+  }
+
+  @protected
+  void dco_decode_unit(dynamic raw) {
+    // Codec=Dco (DartCObject based), see doc to use other codecs
+    return;
+  }
+
+  @protected
+  String sse_decode_String(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    var inner = sse_decode_list_prim_u_8_strict(deserializer);
+    return utf8.decoder.convert(inner);
+  }
+
+  @protected
+  Uint8List sse_decode_list_prim_u_8_strict(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    var len_ = sse_decode_i_32(deserializer);
+    return deserializer.buffer.getUint8List(len_);
+  }
+
+  @protected
+  int sse_decode_u_8(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    return deserializer.buffer.getUint8();
+  }
+
+  @protected
+  void sse_decode_unit(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+  }
+
+  @protected
+  int sse_decode_i_32(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    return deserializer.buffer.getInt32();
+  }
+
+  @protected
+  bool sse_decode_bool(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    return deserializer.buffer.getUint8() != 0;
+  }
+
+  @protected
+  void sse_encode_String(String self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    sse_encode_list_prim_u_8_strict(utf8.encoder.convert(self), serializer);
+  }
+
+  @protected
+  void sse_encode_list_prim_u_8_strict(
+      Uint8List self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    sse_encode_i_32(self.length, serializer);
+    serializer.buffer.putUint8List(self);
+  }
+
+  @protected
+  void sse_encode_u_8(int self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    serializer.buffer.putUint8(self);
+  }
+
+  @protected
+  void sse_encode_unit(void self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+  }
+
+  @protected
+  void sse_encode_i_32(int self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    serializer.buffer.putInt32(self);
+  }
+
+  @protected
+  void sse_encode_bool(bool self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    serializer.buffer.putUint8(self ? 1 : 0);
+  }
+}

lib/src/rust/frb_generated.io.dart

@@ -0,0 +1,84 @@
+// This file is automatically generated, so please do not edit it.
+// @generated by `flutter_rust_bridge`@ 2.11.1.
+
+// ignore_for_file: unused_import, unused_element, unnecessary_import, duplicate_ignore, invalid_use_of_internal_member, annotate_overrides, non_constant_identifier_names, curly_braces_in_flow_control_structures, prefer_const_literals_to_create_immutables, unused_field
+
+import 'api/simple.dart';
+import 'dart:async';
+import 'dart:convert';
+import 'dart:ffi' as ffi;
+import 'frb_generated.dart';
+import 'package:flutter_rust_bridge/flutter_rust_bridge_for_generated_io.dart';
+
+abstract class RustLibApiImplPlatform extends BaseApiImpl<RustLibWire> {
+  RustLibApiImplPlatform({
+    required super.handler,
+    required super.wire,
+    required super.generalizedFrbRustBinding,
+    required super.portManager,
+  });
+
+  @protected
+  String dco_decode_String(dynamic raw);
+
+  @protected
+  Uint8List dco_decode_list_prim_u_8_strict(dynamic raw);
+
+  @protected
+  int dco_decode_u_8(dynamic raw);
+
+  @protected
+  void dco_decode_unit(dynamic raw);
+
+  @protected
+  String sse_decode_String(SseDeserializer deserializer);
+
+  @protected
+  Uint8List sse_decode_list_prim_u_8_strict(SseDeserializer deserializer);
+
+  @protected
+  int sse_decode_u_8(SseDeserializer deserializer);
+
+  @protected
+  void sse_decode_unit(SseDeserializer deserializer);
+
+  @protected
+  int sse_decode_i_32(SseDeserializer deserializer);
+
+  @protected
+  bool sse_decode_bool(SseDeserializer deserializer);
+
+  @protected
+  void sse_encode_String(String self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_list_prim_u_8_strict(
+      Uint8List self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_u_8(int self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_unit(void self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_i_32(int self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_bool(bool self, SseSerializer serializer);
+}
+
+// Section: wire_class
+
+class RustLibWire implements BaseWire {
+  factory RustLibWire.fromExternalLibrary(ExternalLibrary lib) =>
+      RustLibWire(lib.ffiDynamicLibrary);
+
+  /// Holds the symbol lookup function.
+  final ffi.Pointer<T> Function<T extends ffi.NativeType>(String symbolName)
+      _lookup;
+
+  /// The symbols are looked up in [dynamicLibrary].
+  RustLibWire(ffi.DynamicLibrary dynamicLibrary)
+      : _lookup = dynamicLibrary.lookup;
+}

lib/src/rust/frb_generated.web.dart

@@ -0,0 +1,84 @@
+// This file is automatically generated, so please do not edit it.
+// @generated by `flutter_rust_bridge`@ 2.11.1.
+
+// ignore_for_file: unused_import, unused_element, unnecessary_import, duplicate_ignore, invalid_use_of_internal_member, annotate_overrides, non_constant_identifier_names, curly_braces_in_flow_control_structures, prefer_const_literals_to_create_immutables, unused_field
+
+// Static analysis wrongly picks the IO variant, thus ignore this
+// ignore_for_file: argument_type_not_assignable
+
+import 'api/simple.dart';
+import 'dart:async';
+import 'dart:convert';
+import 'frb_generated.dart';
+import 'package:flutter_rust_bridge/flutter_rust_bridge_for_generated_web.dart';
+
+abstract class RustLibApiImplPlatform extends BaseApiImpl<RustLibWire> {
+  RustLibApiImplPlatform({
+    required super.handler,
+    required super.wire,
+    required super.generalizedFrbRustBinding,
+    required super.portManager,
+  });
+
+  @protected
+  String dco_decode_String(dynamic raw);
+
+  @protected
+  Uint8List dco_decode_list_prim_u_8_strict(dynamic raw);
+
+  @protected
+  int dco_decode_u_8(dynamic raw);
+
+  @protected
+  void dco_decode_unit(dynamic raw);
+
+  @protected
+  String sse_decode_String(SseDeserializer deserializer);
+
+  @protected
+  Uint8List sse_decode_list_prim_u_8_strict(SseDeserializer deserializer);
+
+  @protected
+  int sse_decode_u_8(SseDeserializer deserializer);
+
+  @protected
+  void sse_decode_unit(SseDeserializer deserializer);
+
+  @protected
+  int sse_decode_i_32(SseDeserializer deserializer);
+
+  @protected
+  bool sse_decode_bool(SseDeserializer deserializer);
+
+  @protected
+  void sse_encode_String(String self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_list_prim_u_8_strict(
+      Uint8List self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_u_8(int self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_unit(void self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_i_32(int self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_bool(bool self, SseSerializer serializer);
+}
+
+// Section: wire_class
+
+class RustLibWire implements BaseWire {
+  RustLibWire.fromExternalLibrary(ExternalLibrary lib);
+}
+
+@JS('wasm_bindgen')
+external RustLibWasmModule get wasmModule;
+
+@JS()
+@anonymous
+extension type RustLibWasmModule._(JSObject _) implements JSObject {}

lib/util/constants.dart

@@ -1 +1,21 @@
-const abawoServiceBtUUID = '0993826f-0ee4-4b37-9614-d13ecba4ffc2';
+import 'package:flutter_reactive_ble/flutter_reactive_ble.dart';
+
+const abawoServiceBtUUIDPrefix = '0993826f-0ee4-4b37-9614';
+const abawoUniversalShiftersServiceBtUUID =
+    '0993826f-0ee4-4b37-9614-d13ecba4ffc2';
+
+bool isAbawoDeviceGuid(Uuid guid) {
+  return guid
+      .toString()
+      .toLowerCase()
+      .replaceAll('-', '')
+      .startsWith(abawoServiceBtUUIDPrefix.toLowerCase().replaceAll('-', ''));
+}
+
+bool isAbawoUniversalShiftersDeviceGuid(Uuid guid) {
+  return guid == Uuid.parse(abawoUniversalShiftersServiceBtUUID);
+}
+
+bool isConnectableAbawoDeviceGuid(Uuid guid) {
+  return isAbawoUniversalShiftersDeviceGuid(guid);
+}

lib/util/sharedPrefs.dart

@@ -1,8 +1,7 @@
 import 'package:flutter_riverpod/flutter_riverpod.dart';
-import 'package:riverpod_annotation/riverpod_annotation.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
-part 'sharedPrefs.g.dart';
+// part 'sharedPrefs.g.dart';
 
 final sharedPreferencesProvider =
     Provider<SharedPreferences>((ref) => throw UnimplementedError());

lib/util/sharedPrefs.g.dart

@@ -1,197 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'sharedPrefs.dart';
-
-// **************************************************************************
-// RiverpodGenerator
-// **************************************************************************
-
-String _$sharedPrefValueHash() => r'6c78fac8d11d0df162d4d53f465c1c8535fcd150';
-
-/// Copied from Dart SDK
-class _SystemHash {
-  _SystemHash._();
-
-  static int combine(int hash, int value) {
-    // ignore: parameter_assignments
-    hash = 0x1fffffff & (hash + value);
-    // ignore: parameter_assignments
-    hash = 0x1fffffff & (hash + ((0x0007ffff & hash) << 10));
-    return hash ^ (hash >> 6);
-  }
-
-  static int finish(int hash) {
-    // ignore: parameter_assignments
-    hash = 0x1fffffff & (hash + ((0x03ffffff & hash) << 3));
-    // ignore: parameter_assignments
-    hash = hash ^ (hash >> 11);
-    return 0x1fffffff & (hash + ((0x00003fff & hash) << 15));
-  }
-}
-
-abstract class _$SharedPrefValue extends BuildlessAutoDisposeNotifier<T> {
-  late final String key;
-  late final T defaultValue;
-
-  T build(
-    String key,
-    T defaultValue,
-  );
-}
-
-/// See also [SharedPrefValue].
-@ProviderFor(SharedPrefValue)
-const sharedPrefValueProvider = SharedPrefValueFamily();
-
-/// See also [SharedPrefValue].
-class SharedPrefValueFamily extends Family<T> {
-  /// See also [SharedPrefValue].
-  const SharedPrefValueFamily();
-
-  /// See also [SharedPrefValue].
-  SharedPrefValueProvider call(
-    String key,
-    T defaultValue,
-  ) {
-    return SharedPrefValueProvider(
-      key,
-      defaultValue,
-    );
-  }
-
-  @override
-  SharedPrefValueProvider getProviderOverride(
-    covariant SharedPrefValueProvider provider,
-  ) {
-    return call(
-      provider.key,
-      provider.defaultValue,
-    );
-  }
-
-  static const Iterable<ProviderOrFamily>? _dependencies = null;
-
-  @override
-  Iterable<ProviderOrFamily>? get dependencies => _dependencies;
-
-  static const Iterable<ProviderOrFamily>? _allTransitiveDependencies = null;
-
-  @override
-  Iterable<ProviderOrFamily>? get allTransitiveDependencies =>
-      _allTransitiveDependencies;
-
-  @override
-  String? get name => r'sharedPrefValueProvider';
-}
-
-/// See also [SharedPrefValue].
-class SharedPrefValueProvider
-    extends AutoDisposeNotifierProviderImpl<SharedPrefValue, T> {
-  /// See also [SharedPrefValue].
-  SharedPrefValueProvider(
-    String key,
-    T defaultValue,
-  ) : this._internal(
-          () => SharedPrefValue()
-            ..key = key
-            ..defaultValue = defaultValue,
-          from: sharedPrefValueProvider,
-          name: r'sharedPrefValueProvider',
-          debugGetCreateSourceHash:
-              const bool.fromEnvironment('dart.vm.product')
-                  ? null
-                  : _$sharedPrefValueHash,
-          dependencies: SharedPrefValueFamily._dependencies,
-          allTransitiveDependencies:
-              SharedPrefValueFamily._allTransitiveDependencies,
-          key: key,
-          defaultValue: defaultValue,
-        );
-
-  SharedPrefValueProvider._internal(
-    super._createNotifier, {
-    required super.name,
-    required super.dependencies,
-    required super.allTransitiveDependencies,
-    required super.debugGetCreateSourceHash,
-    required super.from,
-    required this.key,
-    required this.defaultValue,
-  }) : super.internal();
-
-  final String key;
-  final T defaultValue;
-
-  @override
-  T runNotifierBuild(
-    covariant SharedPrefValue notifier,
-  ) {
-    return notifier.build(
-      key,
-      defaultValue,
-    );
-  }
-
-  @override
-  Override overrideWith(SharedPrefValue Function() create) {
-    return ProviderOverride(
-      origin: this,
-      override: SharedPrefValueProvider._internal(
-        () => create()
-          ..key = key
-          ..defaultValue = defaultValue,
-        from: from,
-        name: null,
-        dependencies: null,
-        allTransitiveDependencies: null,
-        debugGetCreateSourceHash: null,
-        key: key,
-        defaultValue: defaultValue,
-      ),
-    );
-  }
-
-  @override
-  AutoDisposeNotifierProviderElement<SharedPrefValue, T> createElement() {
-    return _SharedPrefValueProviderElement(this);
-  }
-
-  @override
-  bool operator ==(Object other) {
-    return other is SharedPrefValueProvider &&
-        other.key == key &&
-        other.defaultValue == defaultValue;
-  }
-
-  @override
-  int get hashCode {
-    var hash = _SystemHash.combine(0, runtimeType.hashCode);
-    hash = _SystemHash.combine(hash, key.hashCode);
-    hash = _SystemHash.combine(hash, defaultValue.hashCode);
-
-    return _SystemHash.finish(hash);
-  }
-}
-
-@Deprecated('Will be removed in 3.0. Use Ref instead')
-// ignore: unused_element
-mixin SharedPrefValueRef on AutoDisposeNotifierProviderRef<T> {
-  /// The parameter `key` of this provider.
-  String get key;
-
-  /// The parameter `defaultValue` of this provider.
-  T get defaultValue;
-}
-
-class _SharedPrefValueProviderElement
-    extends AutoDisposeNotifierProviderElement<SharedPrefValue, T>
-    with SharedPrefValueRef {
-  _SharedPrefValueProviderElement(super.provider);
-
-  @override
-  String get key => (origin as SharedPrefValueProvider).key;
-  @override
-  T get defaultValue => (origin as SharedPrefValueProvider).defaultValue;
-}
-// ignore_for_file: type=lint
-// ignore_for_file: subtype_of_sealed_class, invalid_use_of_internal_member, invalid_use_of_visible_for_testing_member, deprecated_member_use_from_same_package

lib/widgets/bike_scan_dialog.dart

@@ -0,0 +1,214 @@
+import 'package:abawo_bt_app/controller/bluetooth.dart';
+import 'package:abawo_bt_app/model/shifter_types.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_reactive_ble/flutter_reactive_ble.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+class BikeScanDialog extends ConsumerStatefulWidget {
+  const BikeScanDialog({
+    required this.excludedDeviceId,
+    super.key,
+  });
+
+  final String excludedDeviceId;
+
+  static Future<DiscoveredDevice?> show(
+    BuildContext context, {
+    required String excludedDeviceId,
+  }) {
+    return showDialog<DiscoveredDevice>(
+      context: context,
+      barrierDismissible: true,
+      builder: (_) => BikeScanDialog(excludedDeviceId: excludedDeviceId),
+    );
+  }
+
+  @override
+  ConsumerState<BikeScanDialog> createState() => _BikeScanDialogState();
+}
+
+class _BikeScanDialogState extends ConsumerState<BikeScanDialog> {
+  bool _showAll = false;
+  BluetoothController? _controller;
+
+  @override
+  void initState() {
+    super.initState();
+    _startScan();
+  }
+
+  Future<void> _startScan() async {
+    final controller = await ref.read(bluetoothProvider.future);
+    _controller = controller;
+    await controller.stopScan();
+    await controller.startScan();
+  }
+
+  @override
+  void dispose() {
+    _controller?.stopScan();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final btAsync = ref.watch(bluetoothProvider);
+
+    return Dialog(
+      clipBehavior: Clip.antiAlias,
+      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
+      child: SizedBox(
+        width: 520,
+        height: 520,
+        child: btAsync.when(
+          loading: () => const Center(child: CircularProgressIndicator()),
+          error: (err, _) => Center(child: Text('Bluetooth error: $err')),
+          data: (controller) {
+            _controller ??= controller;
+            return Column(
+              children: [
+                _buildHeader(context),
+                const Divider(height: 1),
+                Expanded(
+                  child: StreamBuilder<List<DiscoveredDevice>>(
+                    stream: controller.scanResultsStream,
+                    initialData: controller.scanResults,
+                    builder: (context, snapshot) {
+                      final devices =
+                          _filteredDevices(snapshot.data ?? const []);
+                      if (devices.isEmpty) {
+                        return const Center(
+                          child: Text('No matching devices nearby.'),
+                        );
+                      }
+
+                      return ListView.separated(
+                        itemCount: devices.length,
+                        separatorBuilder: (_, __) => const Divider(height: 1),
+                        itemBuilder: (context, index) {
+                          final device = devices[index];
+                          return ListTile(
+                            contentPadding: const EdgeInsets.symmetric(
+                              horizontal: 16,
+                              vertical: 8,
+                            ),
+                            leading: CircleAvatar(
+                              backgroundColor: Theme.of(context)
+                                  .colorScheme
+                                  .primaryContainer,
+                              child: const Icon(Icons.pedal_bike),
+                            ),
+                            title: Text(
+                              device.name.isEmpty
+                                  ? 'Unknown Device'
+                                  : device.name,
+                              maxLines: 1,
+                              overflow: TextOverflow.ellipsis,
+                            ),
+                            subtitle: Text(
+                              device.id,
+                              style: const TextStyle(fontFamily: 'monospace'),
+                              maxLines: 1,
+                              overflow: TextOverflow.ellipsis,
+                            ),
+                            trailing: _RssiBadge(rssi: device.rssi),
+                            onTap: () {
+                              Navigator.of(context).pop(device);
+                            },
+                          );
+                        },
+                      );
+                    },
+                  ),
+                ),
+              ],
+            );
+          },
+        ),
+      ),
+    );
+  }
+
+  Widget _buildHeader(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.fromLTRB(16, 12, 12, 12),
+      child: Row(
+        children: [
+          const Expanded(
+            child: Text(
+              'Select Bike',
+              style: TextStyle(fontSize: 20, fontWeight: FontWeight.w600),
+            ),
+          ),
+          Row(
+            children: [
+              const Text('Show All'),
+              Switch(
+                value: _showAll,
+                onChanged: (value) {
+                  setState(() {
+                    _showAll = value;
+                  });
+                },
+              ),
+            ],
+          ),
+          IconButton(
+            tooltip: 'Rescan',
+            onPressed: _startScan,
+            icon: const Icon(Icons.refresh),
+          ),
+          IconButton(
+            tooltip: 'Close',
+            onPressed: () => Navigator.of(context).pop(),
+            icon: const Icon(Icons.close),
+          ),
+        ],
+      ),
+    );
+  }
+
+  List<DiscoveredDevice> _filteredDevices(List<DiscoveredDevice> devices) {
+    final ftmsUuid = Uuid.parse(ftmsServiceUuid);
+    return devices.where((device) {
+      if (device.id == widget.excludedDeviceId) {
+        return false;
+      }
+      if (_showAll) {
+        return true;
+      }
+      return device.serviceUuids.contains(ftmsUuid);
+    }).toList(growable: false);
+  }
+}
+
+class _RssiBadge extends StatelessWidget {
+  const _RssiBadge({required this.rssi});
+
+  final int rssi;
+
+  @override
+  Widget build(BuildContext context) {
+    final color = rssi > -65
+        ? Colors.green
+        : rssi > -80
+            ? Colors.orange
+            : Colors.red;
+
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
+      decoration: BoxDecoration(
+        color: color.withValues(alpha: 0.15),
+        borderRadius: BorderRadius.circular(8),
+      ),
+      child: Text(
+        '$rssi dBm',
+        style: TextStyle(
+          color: color,
+          fontWeight: FontWeight.w600,
+          fontSize: 12,
+        ),
+      ),
+    );
+  }
+}

lib/widgets/device_listitem.dart

@@ -1,18 +1,23 @@
+import 'package:abawo_bt_app/model/bluetooth_device_model.dart';
 import 'package:flutter/material.dart';
 import 'dart:ui'; // Required for ImageFilter
 
 class DeviceListItem extends StatelessWidget {
   final String deviceName;
   final String deviceId; // Added for potential future use or subtitle
-  final bool isUnknownDevice;
+  final DeviceType type;
   // final String? imageUrl; // Optional image URL - commented out for now
+  final bool isConnecting; // Add this line
+  final Widget? trailing;
 
   const DeviceListItem({
     super.key,
     required this.deviceName,
     required this.deviceId,
-    this.isUnknownDevice = false,
+    required this.type,
     // this.imageUrl,
+    this.isConnecting = false, // Add this line
+    this.trailing,
   });
 
   @override
@@ -22,11 +27,11 @@ class DeviceListItem extends StatelessWidget {
 
     // Glassy effect colors - adjust transparency and base color as needed
     final glassColor = isDarkMode
-        ? Colors.white.withOpacity(0.1)
+        ? Colors.white.withValues(alpha: 0.1)
-        : Colors.black.withOpacity(0.05);
+        : Colors.black.withValues(alpha: 0.05);
     final shadowColor = isDarkMode
-        ? Colors.black.withOpacity(0.4)
+        ? Colors.black.withValues(alpha: 0.4)
-        : Colors.grey.withOpacity(0.5);
+        : Colors.grey.withValues(alpha: 0.5);
 
     return Padding(
       padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 8.0),
@@ -57,18 +62,30 @@ class DeviceListItem extends StatelessWidget {
                         glassColor, // Semi-transparent color for glass effect
                     borderRadius: BorderRadius.circular(12),
                     border: Border.all(
-                      color: Colors.white.withOpacity(0.2), // Subtle border
+                      color:
+                          Colors.white.withValues(alpha: 0.2), // Subtle border
                       width: 0.5,
                     ),
                   ),
-                  child: const Center(
+                  child: type == DeviceType.universalShifters
-                    // Placeholder '?' - replace with Image widget when imageUrl is available
+                      // For Universal Shifters: Image fills the container, constrained by rounded borders
+                      ? ClipRRect(
+                          borderRadius: BorderRadius.circular(12),
+                          child: Image.asset(
+                            'assets/images/shifter-wireframe.png',
+                            fit: BoxFit.cover, // Cover the entire container
+                            width: 60,
+                            height: 60,
+                          ),
+                        )
+                      // For other devices: Question mark with padding
+                      : const Center(
                           child: Text(
                             '?',
                             style: TextStyle(
                               fontSize: 30,
                               fontWeight: FontWeight.bold,
-                        color: Colors.white70, // Adjust color as needed
+                              color: Colors.white70,
                             ),
                           ),
                         ),
@@ -84,14 +101,16 @@ class DeviceListItem extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 Text(
-                  isUnknownDevice ? 'Unknown Device' : deviceName,
+                  deviceName.isEmpty ? 'Unknown Device' : deviceName,
                   style: TextStyle(
                     fontSize: 16,
-                    fontWeight:
+                    fontWeight: deviceName.isEmpty
-                        isUnknownDevice ? FontWeight.normal : FontWeight.w500,
+                        ? FontWeight.normal
-                    fontStyle:
+                        : FontWeight.w500,
-                        isUnknownDevice ? FontStyle.italic : FontStyle.normal,
+                    fontStyle: deviceName.isEmpty
-                    color: isUnknownDevice
+                        ? FontStyle.italic
+                        : FontStyle.normal,
+                    color: deviceName.isEmpty
                         ? theme.hintColor
                         : theme.textTheme.bodyLarge?.color,
                   ),
@@ -108,6 +127,19 @@ class DeviceListItem extends StatelessWidget {
               ],
             ),
           ),
+          // Add spinner if connecting (Add this block)
+          if (isConnecting)
+            Padding(
+              padding: const EdgeInsets.only(left: 12.0), // Add some spacing
+              child: SizedBox(
+                width: 20, // Define spinner size
+                height: 20,
+                child: CircularProgressIndicator(
+                    strokeWidth: 2.0), // Use a small spinner
+              ),
+            )
+          else if (trailing != null)
+            trailing!,
           // Optional: Add an icon or button on the far right if needed later
           // Icon(Icons.chevron_right, color: theme.hintColor),
         ],

lib/widgets/horizontal_scanning_animation.dart

@@ -0,0 +1,207 @@
+import 'dart:math';
+import 'package:flutter/material.dart';
+
+class HorizontalScanningAnimation extends StatefulWidget {
+  final bool isScanning; // Add this to control the animation
+  final Color waveColor;
+  final double height;
+  const HorizontalScanningAnimation({
+    super.key,
+    required this.isScanning, // Make it required
+    this.waveColor = Colors.lightBlueAccent,
+    this.height = 50.0,
+  });
+  @override
+  _HorizontalScanningAnimationState createState() =>
+      _HorizontalScanningAnimationState();
+}
+
+class _HorizontalScanningAnimationState
+    extends State<HorizontalScanningAnimation>
+    with SingleTickerProviderStateMixin {
+  late AnimationController _controller;
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = AnimationController(
+      vsync: this,
+      duration: const Duration(seconds: 2),
+    );
+    // Start repeating only if initially scanning
+    if (widget.isScanning) {
+      _controller.repeat();
+    }
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  void didUpdateWidget(covariant HorizontalScanningAnimation oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (widget.isScanning != oldWidget.isScanning) {
+      if (widget.isScanning) {
+        // Start or resume repeating
+        if (!_controller.isAnimating) {
+          // If stopped previously, reset before repeating for a clean start
+          // Though, repeat() should handle restarting if stopped. Testing needed.
+          // _controller.reset(); // Optional: uncomment if repeat doesn't restart smoothly
+          _controller.repeat();
+        }
+      } else {
+        // Stop repeating, but let the current animation cycle finish visually
+        if (_controller.isAnimating) {
+          _controller.stop(
+              canceled:
+                  false); // Use canceled: false to let it finish the current tick
+        }
+      }
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    // Only build the painter if the controller is active or was recently stopped
+    // This prevents drawing when completely idle. Check if value is changing or non-zero.
+    // Or simply rely on the AnimatedBuilder which won't rebuild if controller is idle at 0.0
+    return SizedBox(
+      height: widget.height,
+      width: double.infinity,
+      child: AnimatedBuilder(
+        animation: _controller,
+        builder: (context, child) {
+          return CustomPaint(
+            painter: _HorizontalWavePainter(
+              progress: _controller.value,
+              waveColor: widget.waveColor,
+            ),
+          );
+        },
+      ),
+    );
+  }
+}
+
+class _HorizontalWavePainter extends CustomPainter {
+  final double progress; // Animation value from 0.0 to 1.0
+  final Color waveColor;
+  final int waveCount = 2; // Number of waves visible at once
+  final double waveAmplitude = 10.0; // Max height deviation of the wave
+
+  _HorizontalWavePainter({required this.progress, required this.waveColor});
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    final paint = Paint()
+      ..color = waveColor.withValues(alpha: 0.6) // Semi-transparent waves
+      ..style = PaintingStyle.fill;
+
+    final centerY = size.height / 2;
+    final width = size.width;
+
+    // Draw multiple waves propagating outwards
+    for (int i = 0; i < waveCount; i++) {
+      // Calculate the phase offset for each wave based on progress and index
+      // This creates the effect of waves moving outwards
+      double waveProgress = (progress + i / waveCount) % 1.0;
+
+      // Use an easing curve for smoother expansion
+      double easedProgress = Curves.easeInOutSine.transform(waveProgress);
+
+      // Calculate the current horizontal position (expanding from center)
+      // The wave starts narrow and expands outwards
+      double currentWidth =
+          width * easedProgress * 0.8; // Max 80% width expansion
+      double startX = (width / 2) - (currentWidth / 2);
+      double endX = (width / 2) + (currentWidth / 2);
+
+      // Calculate opacity based on progress (fade in and out)
+      double opacity;
+      if (waveProgress < 0.1) {
+        opacity = waveProgress / 0.1; // Fade in
+      } else if (waveProgress > 0.8) {
+        opacity = (1.0 - waveProgress) / 0.2; // Fade out
+      } else {
+        opacity = 1.0;
+      }
+      opacity = max(0.0, opacity); // Clamp opacity
+
+      if (opacity <= 0.0 || currentWidth < 5)
+        continue; // Skip drawing if invisible or too small
+
+      // Create the wave path
+      final path = Path();
+      path.moveTo(startX, centerY);
+
+      // Calculate points for the sine wave shape within the current width
+      const int segments = 50; // Number of segments for the curve
+      for (int j = 0; j <= segments; j++) {
+        double segmentProgress = j / segments;
+        double x = startX + currentWidth * segmentProgress;
+        // Apply sine wave based on segment progress and overall animation progress
+        // Multiply by (1 - easedProgress) to reduce amplitude as it expands
+        double yOffset = waveAmplitude *
+            sin(segmentProgress * 2 * pi + progress * 4 * pi) *
+            (1 - easedProgress * 0.8) * // Reduce amplitude as it expands
+            opacity; // Apply opacity effect to amplitude too
+        path.lineTo(x, centerY + yOffset);
+      }
+
+      // Draw a filled shape (like a lens flare or horizontal bar)
+      // Adjust thickness based on easedProgress (thicker in the middle, thinner at ends)
+      double thickness =
+          waveAmplitude * (1 - easedProgress * 0.9) * opacity * 0.5;
+      paint.color = waveColor.withValues(
+          alpha: opacity * 0.5); // Update paint color with opacity
+
+      // Simplified: Draw a rectangle that pulses
+      // More complex shapes could be drawn here using path.arcTo or path.quadraticBezierTo
+      // For simplicity, let's use a slightly blurred rectangle effect
+
+      final rectPath = Path()
+        ..addRRect(RRect.fromRectAndRadius(
+            Rect.fromCenter(
+                center: Offset(width / 2, centerY),
+                width: currentWidth,
+                height: thickness * 2),
+            Radius.circular(thickness)));
+
+      // Apply a blur effect
+      final blurPaint = Paint()
+        ..color = waveColor.withValues(alpha: opacity * 0.4)
+        ..maskFilter = MaskFilter.blur(
+            BlurStyle.normal, thickness * 1.5); // Blur based on thickness
+
+      // Draw the blurred shape
+      canvas.drawPath(rectPath, blurPaint);
+
+      // Draw a slightly smaller, less opaque shape on top for highlight
+      final highlightPaint = Paint()
+        ..color = waveColor.withValues(alpha: opacity * 0.7)
+        ..style = PaintingStyle.fill;
+      final highlightRectPath = Path()
+        ..addRRect(RRect.fromRectAndRadius(
+            Rect.fromCenter(
+                center: Offset(width / 2, centerY),
+                width: currentWidth * 0.95,
+                height: thickness * 1.5),
+            Radius.circular(thickness * 0.8)));
+      canvas.drawPath(highlightRectPath, highlightPaint);
+
+      // Old Path drawing - keep if rectangle isn't desired
+      // paint.color = waveColor.withValues(alpha: opacity * 0.5); // Apply opacity
+      // canvas.drawPath(path, paint);
+    }
+  }
+
+  @override
+  bool shouldRepaint(covariant _HorizontalWavePainter oldDelegate) {
+    // Repaint whenever the animation progress or color changes
+    return oldDelegate.progress != progress ||
+        oldDelegate.waveColor != waveColor;
+  }
+}

linux/flutter/generated_plugin_registrant.cc

@@ -6,6 +6,14 @@
 
 #include "generated_plugin_registrant.h"
 
+#include <nb_utils/nb_utils_plugin.h>
+#include <sqlite3_flutter_libs/sqlite3_flutter_libs_plugin.h>
 
 void fl_register_plugins(FlPluginRegistry* registry) {
+  g_autoptr(FlPluginRegistrar) nb_utils_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "NbUtilsPlugin");
+  nb_utils_plugin_register_with_registrar(nb_utils_registrar);
+  g_autoptr(FlPluginRegistrar) sqlite3_flutter_libs_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "Sqlite3FlutterLibsPlugin");
+  sqlite3_flutter_libs_plugin_register_with_registrar(sqlite3_flutter_libs_registrar);
 }

linux/flutter/generated_plugins.cmake

@@ -3,9 +3,12 @@
 #
 
 list(APPEND FLUTTER_PLUGIN_LIST
+  nb_utils
+  sqlite3_flutter_libs
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST
+  rust_lib_abawo_bt_app
 )
 
 set(PLUGIN_BUNDLED_LIBRARIES)

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -5,10 +5,22 @@
 import FlutterMacOS
 import Foundation
 
+import connectivity_plus
+import file_picker
 import flutter_blue_plus_darwin
+import nb_utils
+import path_provider_foundation
+import reactive_ble_mobile
 import shared_preferences_foundation
+import sqlite3_flutter_libs
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  ConnectivityPlusPlugin.register(with: registry.registrar(forPlugin: "ConnectivityPlusPlugin"))
+  FilePickerPlugin.register(with: registry.registrar(forPlugin: "FilePickerPlugin"))
   FlutterBluePlusPlugin.register(with: registry.registrar(forPlugin: "FlutterBluePlusPlugin"))
+  NbUtilsPlugin.register(with: registry.registrar(forPlugin: "NbUtilsPlugin"))
+  PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
+  ReactiveBlePlugin.register(with: registry.registrar(forPlugin: "ReactiveBlePlugin"))
   SharedPreferencesPlugin.register(with: registry.registrar(forPlugin: "SharedPreferencesPlugin"))
+  Sqlite3FlutterLibsPlugin.register(with: registry.registrar(forPlugin: "Sqlite3FlutterLibsPlugin"))
 }

pubspec.lock

@@ -73,6 +73,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.4.2"
+  build_cli_annotations:
+    dependency: transitive
+    description:
+      name: build_cli_annotations
+      sha256: e563c2e01de8974566a1998410d3f6f03521788160a02503b0b1f1a46c7b3d95
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.1"
   build_config:
     dependency: transitive
     description:
@@ -129,14 +137,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "8.9.5"
+  cbor:
+    dependency: "direct main"
+    description:
+      name: cbor
+      sha256: "2c5c37650f0a2d25149f03e748ab7b2857787bde338f95fe947738b80d713da2"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.5.1"
   characters:
     dependency: transitive
     description:
       name: characters
-      sha256: "04a925763edad70e8443c99234dc3328f442e811f1d8fd1a72f1c8ad0f69a605"
+      sha256: faf38497bda5ead2a8c7615f4f7939df04333478bf32e4173fcb06d428b5716b
       url: "https://pub.dev"
     source: hosted
-    version: "1.3.0"
+    version: "1.4.1"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      sha256: fb0f1107cac15a5ea6ef0a6ef71a807b9e4267c713bb93e00e92d737cc8dbd8a
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.0"
   checked_yaml:
     dependency: transitive
     description:
@@ -165,10 +189,10 @@ packages:
     dependency: transitive
     description:
       name: clock
-      sha256: cb6d7f03e1de671e34607e909a7213e31d7752be4fb66a86d29fe1eb14bfb5cf
+      sha256: fddb70d9b5277016c77a80201021d40a2247104d9f4aa7bab7157b7e3f05b84b
       url: "https://pub.dev"
     source: hosted
-    version: "1.1.1"
+    version: "1.1.2"
   code_builder:
     dependency: transitive
     description:
@@ -181,10 +205,26 @@ packages:
     dependency: transitive
     description:
       name: collection
-      sha256: a1ace0a119f20aabc852d165077c036cd864315bd99b7eaa10a60100341941bf
+      sha256: "2f5709ae4d3d59dd8f7cd309b4e023046b57d8a6c82130785d2b0e5868084e76"
       url: "https://pub.dev"
     source: hosted
-    version: "1.19.0"
+    version: "1.19.1"
+  connectivity_plus:
+    dependency: transitive
+    description:
+      name: connectivity_plus
+      sha256: "33bae12a398f841c6cda09d1064212957265869104c478e5ad51e2fb26c3973c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.0"
+  connectivity_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: connectivity_plus_platform_interface
+      sha256: "42657c1715d48b167930d5f34d00222ac100475f73d10162ddf43e714932f204"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.1"
   convert:
     dependency: transitive
     description:
@@ -193,6 +233,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.1.2"
+  cross_file:
+    dependency: transitive
+    description:
+      name: cross_file
+      sha256: "28bb3ae56f117b5aec029d702a90f57d285cd975c3c5c281eaca38dbc47c5937"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.5+2"
   crypto:
     dependency: transitive
     description:
@@ -257,14 +305,38 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.7.11"
+  drift:
+    dependency: "direct main"
+    description:
+      name: drift
+      sha256: "14a61af39d4584faf1d73b5b35e4b758a43008cf4c0fdb0576ec8e7032c0d9a5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.26.0"
+  drift_dev:
+    dependency: "direct dev"
+    description:
+      name: drift_dev
+      sha256: "0d3f8b33b76cf1c6a82ee34d9511c40957549c4674b8f1688609e6d6c7306588"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.26.0"
+  drift_flutter:
+    dependency: "direct main"
+    description:
+      name: drift_flutter
+      sha256: "0cadbf3b8733409a6cf61d18ba2e94e149df81df7de26f48ae0695b48fd71922"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.2.4"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
-      sha256: "511392330127add0b769b75a987850d136345d9227c6b94c96a04cf4a391bf78"
+      sha256: "5368f224a74523e8d2e7399ea1638b37aecfca824a3cc4dfdf77bf1fa905ac44"
       url: "https://pub.dev"
     source: hosted
-    version: "1.3.1"
+    version: "1.3.3"
   ffi:
     dependency: transitive
     description:
@@ -281,6 +353,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "7.0.1"
+  file_picker:
+    dependency: "direct main"
+    description:
+      name: file_picker
+      sha256: ab13ae8ef5580a411c458d6207b6774a6c237d77ac37011b13994879f68a8810
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.3.7"
   fixnum:
     dependency: transitive
     description:
@@ -298,50 +378,63 @@ packages:
     dependency: "direct main"
     description:
       name: flutter_blue_plus
-      sha256: "2d926dbef0fd6c58d4be8fca9eaaf1ba747c0ccb8373ddd5386665317e26eb61"
+      sha256: "399b3dbc15562ef59749f04e43a99ccbb91540022380d5f269aff3c2787534e4"
       url: "https://pub.dev"
     source: hosted
-    version: "1.35.3"
+    version: "2.1.0"
   flutter_blue_plus_android:
     dependency: transitive
     description:
       name: flutter_blue_plus_android
-      sha256: c1d83f84b514e46345a8a58599c428f20b11e78379521e0d3b0611c7b7cbf2c1
+      sha256: "5010b0960cce533a8fa71401573f044362c3e2e111dc6eb4898c92e85f85f50c"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.0"
+    version: "8.1.0"
   flutter_blue_plus_darwin:
     dependency: transitive
     description:
       name: flutter_blue_plus_darwin
-      sha256: "8d0a0f11f83b13dda173396b7e4028b4e8656bc8dbbc82c26a7e49aafc62644b"
+      sha256: d160a8128e3a016fa58dd65ab6dac05cbc73e0fa799a1f24211d041641ed63ba
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.0"
+    version: "8.1.0"
   flutter_blue_plus_linux:
     dependency: transitive
     description:
       name: flutter_blue_plus_linux
-      sha256: "1d367ed378b2bd6c3b9685fda7044e1d2f169884802b7dec7badb31a99a72660"
+      sha256: f5b02244d89465ba82c8c512686c66362fbb01f52fa03d645ed353ebf3883242
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.0"
+    version: "8.1.0"
   flutter_blue_plus_platform_interface:
     dependency: transitive
     description:
       name: flutter_blue_plus_platform_interface
-      sha256: "114f8e85a03a28a48d707a4df6cc9218e1f2005cf260c5e815e5585a00da5778"
+      sha256: "6e0fc04b77491dbfdbcd46c1a021b12f2f5fc5d6e01777f93a38a8431989b7f0"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.0"
+    version: "8.1.0"
   flutter_blue_plus_web:
     dependency: transitive
     description:
       name: flutter_blue_plus_web
-      sha256: db70cdc41bc743763dc0d47e8c7c10f3923cbbe71b33d9dc21deea482affeb4d
+      sha256: "376aad9595ee389c7cd56e0c373e78abcaa790c821ece9cb81f0969ec94c5bca"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.0"
+    version: "8.1.0"
+  flutter_blue_plus_winrt:
+    dependency: transitive
+    description:
+      name: flutter_blue_plus_winrt
+      sha256: "34be2d8e23d5881b46accebb0e71025f7d52869d72ea98b5082c20764e06aa80"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.0.16"
+  flutter_driver:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   flutter_lints:
     dependency: "direct dev"
     description:
@@ -350,6 +443,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "5.0.0"
+  flutter_plugin_android_lifecycle:
+    dependency: transitive
+    description:
+      name: flutter_plugin_android_lifecycle
+      sha256: ee8068e0e1cd16c4a82714119918efdeed33b3ba7772c54b5d094ab53f9b7fd1
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.33"
+  flutter_reactive_ble:
+    dependency: "direct main"
+    description:
+      name: flutter_reactive_ble
+      sha256: "3ca8430bc7a6cabe5529aab4afaa2e3cb285941f7f7ab7472604074e347c1302"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.4.0"
   flutter_riverpod:
     dependency: "direct main"
     description:
@@ -358,6 +467,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.6.1"
+  flutter_rust_bridge:
+    dependency: "direct main"
+    description:
+      name: flutter_rust_bridge
+      sha256: "37ef40bc6f863652e865f0b2563ea07f0d3c58d8efad803cc01933a4b2ee067e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.11.1"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -368,6 +485,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  fluttertoast:
+    dependency: transitive
+    description:
+      name: fluttertoast
+      sha256: "144ddd74d49c865eba47abe31cbc746c7b311c82d6c32e571fd73c4264b740e2"
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.0.0"
   freezed:
     dependency: "direct dev"
     description:
@@ -392,6 +517,19 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.0.0"
+  fuchsia_remote_debug_protocol:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  functional_data:
+    dependency: transitive
+    description:
+      name: functional_data
+      sha256: "76d17dc707c40e552014f5a49c0afcc3f1e3f05e800cd6b7872940bfe41a5039"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.0"
   glob:
     dependency: transitive
     description:
@@ -416,6 +554,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.3.2"
+  hex:
+    dependency: transitive
+    description:
+      name: hex
+      sha256: "4e7cd54e4b59ba026432a6be2dd9d96e4c5205725194997193bf871703b82c4a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.2.0"
   hotreloader:
     dependency: transitive
     description:
@@ -428,10 +574,10 @@ packages:
     dependency: transitive
     description:
       name: http
-      sha256: fe7ab022b76f3034adc518fb6ea04a82387620e19977665ea18d30a1cf43442f
+      sha256: "87721a4a50b19c7f1d49001e51409bddc46303966ce89a65af4f4e6004896412"
       url: "https://pub.dev"
     source: hosted
-    version: "1.3.0"
+    version: "1.6.0"
   http_multi_server:
     dependency: transitive
     description:
@@ -448,6 +594,11 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.1.2"
+  integration_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   io:
     dependency: transitive
     description:
@@ -484,26 +635,26 @@ packages:
     dependency: transitive
     description:
       name: leak_tracker
-      sha256: "7bb2830ebd849694d1ec25bf1f44582d6ac531a57a365a803a6034ff751d2d06"
+      sha256: "33e2e26bdd85a0112ec15400c8cbffea70d0f9c3407491f672a2fad47915e2de"
       url: "https://pub.dev"
     source: hosted
-    version: "10.0.7"
+    version: "11.0.2"
   leak_tracker_flutter_testing:
     dependency: transitive
     description:
       name: leak_tracker_flutter_testing
-      sha256: "9491a714cca3667b60b5c420da8217e6de0d1ba7a5ec322fab01758f6998f379"
+      sha256: "1dbc140bb5a23c75ea9c4811222756104fbcd1a27173f0c34ca01e16bea473c1"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.8"
+    version: "3.0.10"
   leak_tracker_testing:
     dependency: transitive
     description:
       name: leak_tracker_testing
-      sha256: "6ba465d5d76e67ddf503e1161d1f4a6bc42306f9d66ca1e8f079a47290fb06d3"
+      sha256: "8d5a2d49f4a66b49744b23b018848400d23e54caf9463f4eb20df3eb8acb2eb1"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.1"
+    version: "3.0.2"
   lints:
     dependency: transitive
     description:
@@ -524,26 +675,26 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: d2323aa2060500f906aa31a895b4030b6da3ebdcc5619d14ce1aada65cd161cb
+      sha256: "12956d0ad8390bbcc63ca2e1469c0619946ccb52809807067a7020d57e647aa6"
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.16+1"
+    version: "0.12.18"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec
+      sha256: "9c337007e82b1889149c82ed242ed1cb24a66044e30979c44912381e9be4c48b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.11.1"
+    version: "0.13.0"
   meta:
     dependency: transitive
     description:
       name: meta
-      sha256: bdb68674043280c3428e9ec998512fb681678676b3c54e773629ffe74419f8c7
+      sha256: "23f08335362185a5ea2ad3a4e597f1375e78bce8a040df5c600c8d3552ef2394"
       url: "https://pub.dev"
     source: hosted
-    version: "1.15.0"
+    version: "1.17.0"
   mime:
     dependency: transitive
     description:
@@ -552,6 +703,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
+  nb_utils:
+    dependency: "direct main"
+    description:
+      name: nb_utils
+      sha256: "2cfecbe67bc09ab31069cfe68e4eb232bc71f0670c98a91d0e73e7741a4798ed"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.2.0"
+  nm:
+    dependency: transitive
+    description:
+      name: nm
+      sha256: "2c9aae4127bdc8993206464fcc063611e0e36e72018696cd9631023a31b24254"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.5.0"
   package_config:
     dependency: transitive
     description:
@@ -564,10 +731,34 @@ packages:
     dependency: transitive
     description:
       name: path
-      sha256: "087ce49c3f0dc39180befefc60fdb4acd8f8620e5682fe2476afd0b3688bb4af"
+      sha256: "75cca69d1490965be98c73ceaea117e8a04dd21217b37b292c9ddbec0d955bc5"
       url: "https://pub.dev"
     source: hosted
-    version: "1.9.0"
+    version: "1.9.1"
+  path_provider:
+    dependency: "direct main"
+    description:
+      name: path_provider
+      sha256: "50c5dd5b6e1aaf6fb3a78b33f6aa3afca52bf903a8a5298f53101fdaee55bbcd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.5"
+  path_provider_android:
+    dependency: transitive
+    description:
+      name: path_provider_android
+      sha256: "0ca7359dad67fd7063cb2892ab0c0737b2daafd807cf1acecd62374c8fae6c12"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.16"
+  path_provider_foundation:
+    dependency: transitive
+    description:
+      name: path_provider_foundation
+      sha256: "4843174df4d288f5e29185bd6e72a6fbdf5a4a4602717eed565497429f179942"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
   path_provider_linux:
     dependency: transitive
     description:
@@ -624,6 +815,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.5.1"
+  process:
+    dependency: transitive
+    description:
+      name: process
+      sha256: c6248e4526673988586e8c00bb22a49210c258dc91df5227d5da9748ecf79744
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.0.5"
+  protobuf:
+    dependency: transitive
+    description:
+      name: protobuf
+      sha256: "01dd9bd0fa02548bf2ceee13545d4a0ec6046459d847b6b061d8a27237108a08"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
   pub_semver:
     dependency: transitive
     description:
@@ -640,6 +847,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.5.0"
+  reactive_ble_mobile:
+    dependency: transitive
+    description:
+      name: reactive_ble_mobile
+      sha256: "78af92cfb184770a277a8bdaa76b396a28dbada8931f3d8d0ff552414681f5db"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.4.0"
+  reactive_ble_platform_interface:
+    dependency: transitive
+    description:
+      name: reactive_ble_platform_interface
+      sha256: d0e6f86c7ee3865b74d8a7b6deb1fb8320b24176dfd9a3e475f84b7117eb42c7
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.4.0"
+  recase:
+    dependency: transitive
+    description:
+      name: recase
+      sha256: e4eb4ec2dcdee52dcf99cb4ceabaffc631d7424ee55e56f280bc039737f89213
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.1.0"
   riverpod:
     dependency: transitive
     description:
@@ -688,8 +919,15 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.1.0"
+  rust_lib_abawo_bt_app:
+    dependency: "direct main"
+    description:
+      path: rust_builder
+      relative: true
+    source: path
+    version: "0.0.1"
   rxdart:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: rxdart
       sha256: "5c3004a4a8dbb94bd4bf5412a4def4acdaa12e12f269737a5751369e12d1a962"
@@ -700,10 +938,10 @@ packages:
     dependency: "direct main"
     description:
       name: shared_preferences
-      sha256: "846849e3e9b68f3ef4b60c60cf4b3e02e9321bc7f4d8c4692cf87ffa82fc8a3a"
+      sha256: "2939ae520c9024cb197fc20dee269cd8cdbf564c8b5746374ec6cacdc5169e64"
       url: "https://pub.dev"
     source: hosted
-    version: "2.5.2"
+    version: "2.5.4"
   shared_preferences_android:
     dependency: transitive
     description:
@@ -805,14 +1043,38 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "7.0.0"
+  sqlite3:
+    dependency: transitive
+    description:
+      name: sqlite3
+      sha256: "310af39c40dd0bb2058538333c9d9840a2725ae0b9f77e4fd09ad6696aa8f66e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.7.5"
+  sqlite3_flutter_libs:
+    dependency: transitive
+    description:
+      name: sqlite3_flutter_libs
+      sha256: "1a96b59227828d9eb1463191d684b37a27d66ee5ed7597fcf42eee6452c88a14"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.5.32"
+  sqlparser:
+    dependency: transitive
+    description:
+      name: sqlparser
+      sha256: "27dd0a9f0c02e22ac0eb42a23df9ea079ce69b52bb4a3b478d64e0ef34a263ee"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.41.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      sha256: "9f47fd3630d76be3ab26f0ee06d213679aa425996925ff3feffdec504931c377"
+      sha256: "8b27215b45d22309b5cddda1aa2b19bdfec9df0e765f2de506401c071d38d1b1"
       url: "https://pub.dev"
     source: hosted
-    version: "1.12.0"
+    version: "1.12.1"
   state_notifier:
     dependency: transitive
     description:
@@ -825,10 +1087,10 @@ packages:
     dependency: transitive
     description:
       name: stream_channel
-      sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
+      sha256: "969e04c80b8bcdf826f8f16579c7b14d780458bd97f56d107d3950fdbeef059d"
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.2"
+    version: "2.1.4"
   stream_transform:
     dependency: transitive
     description:
@@ -845,6 +1107,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.0"
+  sync_http:
+    dependency: transitive
+    description:
+      name: sync_http
+      sha256: "7f0cd72eca000d2e026bcd6f990b81d0ca06022ef4e32fb257b30d3d1014a961"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.1"
   term_glyph:
     dependency: transitive
     description:
@@ -857,10 +1127,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: "664d3a9a64782fcdeb83ce9c6b39e78fd2971d4e37827b9b06c3aa1edc5e760c"
+      sha256: "93167629bfc610f71560ab9312acdda4959de4df6fac7492c89ff0d3886f6636"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.3"
+    version: "0.7.9"
   timing:
     dependency: transitive
     description:
@@ -889,10 +1159,10 @@ packages:
     dependency: transitive
     description:
       name: vector_math
-      sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
+      sha256: d530bd74fea330e6e364cda7a85019c434070188383e1cd8d9777ee586914c5b
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.4"
+    version: "2.2.0"
   vm_service:
     dependency: transitive
     description:
@@ -933,6 +1203,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.2"
+  webdriver:
+    dependency: transitive
+    description:
+      name: webdriver
+      sha256: "2f3a14ca026957870cfd9c635b83507e0e51d8091568e90129fbf805aba7cade"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.0"
+  win32:
+    dependency: transitive
+    description:
+      name: win32
+      sha256: "329edf97fdd893e0f1e3b9e88d6a0e627128cc17cc316a8d67fda8f1451178ba"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.13.0"
   xdg_directories:
     dependency: transitive
     description:
@@ -958,5 +1244,5 @@ packages:
     source: hosted
     version: "3.1.3"
 sdks:
-  dart: ">=3.6.1 <4.0.0"
+  dart: ">=3.9.0 <4.0.0"
-  flutter: ">=3.27.0"
+  flutter: ">=3.35.0"

pubspec.yaml

@@ -39,11 +39,22 @@ dependencies:
   go_router: ^14.8.1
   freezed_annotation: ^3.0.0
   json_annotation: ^4.9.0
-  flutter_blue_plus: ^1.35.3
+  flutter_blue_plus: ^2.1.0
   rust: ^3.1.0
   anyhow: ^3.0.1
   logging: ^1.3.0
   shared_preferences: ^2.5.2
+  drift: ^2.26.0
+  drift_flutter: ^0.2.4
+  path_provider: ^2.1.5
+  rxdart: ^0.28.0
+  rust_lib_abawo_bt_app:
+    path: rust_builder
+  flutter_rust_bridge: 2.11.1
+  flutter_reactive_ble: ^5.4.0
+  nb_utils: ^7.2.0
+  cbor: ^6.3.3
+  file_picker: ^8.1.7
 
 dev_dependencies:
   flutter_test:
@@ -61,6 +72,9 @@ dev_dependencies:
   riverpod_lint: ^2.6.5
   freezed: ^3.0.4
   json_serializable: ^6.9.4
+  drift_dev: ^2.26.0
+  integration_test:
+    sdk: flutter
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec
@@ -77,6 +91,8 @@ flutter:
   # assets:
   #   - images/a_dot_burr.jpeg
   #   - images/a_dot_ham.jpeg
+  assets:
+    - assets/images/shifter-wireframe.png
 
   # An image asset can refer to one or more resolution-specific "variants", see
   # https://flutter.dev/to/resolution-aware-images

rust/.gitignore

@@ -0,0 +1 @@
+/target

rust/Cargo.lock

@@ -0,0 +1,729 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
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+checksum = "8a30b2e23b9e17a9f90641c7ab1549cd9b44f296d3ccbf309d2863cfe398a0cb"
+dependencies = [
+ "gimli",
+]
+
+[[package]]
+name = "adler"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
+
+[[package]]
+name = "aho-corasick"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2969dcb958b36655471fc61f7e416fa76033bdd4bfed0678d8fee1e2d07a1f0"
+dependencies = [
+ "memchr",
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+
+[[package]]
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+checksum = "449e356a4864c017286dbbec0e12767ea07efba29e3b7d984194c2a7ff3c4550"
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+ "anyhow",
+ "atomic",
+ "backtrace",
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+
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+
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+checksum = "dbb4e440d04be07da1f1bf44fb4495ebd58669372fe0cffa6e48595ac5bd88a3"
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+ "android_log-sys",
+ "env_filter",
+ "log",
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+[[package]]
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+ "addr2line",
+ "cc",
+ "cfg-if",
+ "libc",
+ "miniz_oxide",
+ "object",
+ "rustc-demangle",
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+checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
+dependencies = [
+ "generic-array",
+]
+
+[[package]]
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+[[package]]
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rust/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "rust_lib_abawo_bt_app"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib", "staticlib"]
+
+[dependencies]
+flutter_rust_bridge = "=2.11.1"
+
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(frb_expand)'] }

rust/src/api/mod.rs

@@ -0,0 +1 @@
+pub mod simple;

rust/src/api/simple.rs

@@ -0,0 +1,12 @@
+#[flutter_rust_bridge::frb(sync)] // Synchronous mode for simplicity of the demo
+pub fn greet(name: String) -> String {
+    format!("Hello, {name}!")
+}
+
+#[flutter_rust_bridge::frb(init)]
+pub fn init_app() {
+    // Default utilities - feel free to customize
+    flutter_rust_bridge::setup_default_user_utils();
+}
+
+

rust/src/frb_generated.rs

@@ -0,0 +1,276 @@
+// This file is automatically generated, so please do not edit it.
+// @generated by `flutter_rust_bridge`@ 2.11.1.
+
+#![allow(
+    non_camel_case_types,
+    unused,
+    non_snake_case,
+    clippy::needless_return,
+    clippy::redundant_closure_call,
+    clippy::redundant_closure,
+    clippy::useless_conversion,
+    clippy::unit_arg,
+    clippy::unused_unit,
+    clippy::double_parens,
+    clippy::let_and_return,
+    clippy::too_many_arguments,
+    clippy::match_single_binding,
+    clippy::clone_on_copy,
+    clippy::let_unit_value,
+    clippy::deref_addrof,
+    clippy::explicit_auto_deref,
+    clippy::borrow_deref_ref,
+    clippy::needless_borrow
+)]
+
+// Section: imports
+
+use flutter_rust_bridge::for_generated::byteorder::{NativeEndian, ReadBytesExt, WriteBytesExt};
+use flutter_rust_bridge::for_generated::{transform_result_dco, Lifetimeable, Lockable};
+use flutter_rust_bridge::{Handler, IntoIntoDart};
+
+// Section: boilerplate
+
+flutter_rust_bridge::frb_generated_boilerplate!(
+    default_stream_sink_codec = SseCodec,
+    default_rust_opaque = RustOpaqueMoi,
+    default_rust_auto_opaque = RustAutoOpaqueMoi,
+);
+pub(crate) const FLUTTER_RUST_BRIDGE_CODEGEN_VERSION: &str = "2.11.1";
+pub(crate) const FLUTTER_RUST_BRIDGE_CODEGEN_CONTENT_HASH: i32 = -1918914929;
+
+// Section: executor
+
+flutter_rust_bridge::frb_generated_default_handler!();
+
+// Section: wire_funcs
+
+fn wire__crate__api__simple__greet_impl(
+    ptr_: flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
+    rust_vec_len_: i32,
+    data_len_: i32,
+) -> flutter_rust_bridge::for_generated::WireSyncRust2DartSse {
+    FLUTTER_RUST_BRIDGE_HANDLER.wrap_sync::<flutter_rust_bridge::for_generated::SseCodec, _>(
+        flutter_rust_bridge::for_generated::TaskInfo {
+            debug_name: "greet",
+            port: None,
+            mode: flutter_rust_bridge::for_generated::FfiCallMode::Sync,
+        },
+        move || {
+            let message = unsafe {
+                flutter_rust_bridge::for_generated::Dart2RustMessageSse::from_wire(
+                    ptr_,
+                    rust_vec_len_,
+                    data_len_,
+                )
+            };
+            let mut deserializer =
+                flutter_rust_bridge::for_generated::SseDeserializer::new(message);
+            let api_name = <String>::sse_decode(&mut deserializer);
+            deserializer.end();
+            transform_result_sse::<_, ()>((move || {
+                let output_ok = Result::<_, ()>::Ok(crate::api::simple::greet(api_name))?;
+                Ok(output_ok)
+            })())
+        },
+    )
+}
+fn wire__crate__api__simple__init_app_impl(
+    port_: flutter_rust_bridge::for_generated::MessagePort,
+    ptr_: flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
+    rust_vec_len_: i32,
+    data_len_: i32,
+) {
+    FLUTTER_RUST_BRIDGE_HANDLER.wrap_normal::<flutter_rust_bridge::for_generated::SseCodec, _, _>(
+        flutter_rust_bridge::for_generated::TaskInfo {
+            debug_name: "init_app",
+            port: Some(port_),
+            mode: flutter_rust_bridge::for_generated::FfiCallMode::Normal,
+        },
+        move || {
+            let message = unsafe {
+                flutter_rust_bridge::for_generated::Dart2RustMessageSse::from_wire(
+                    ptr_,
+                    rust_vec_len_,
+                    data_len_,
+                )
+            };
+            let mut deserializer =
+                flutter_rust_bridge::for_generated::SseDeserializer::new(message);
+            deserializer.end();
+            move |context| {
+                transform_result_sse::<_, ()>((move || {
+                    let output_ok = Result::<_, ()>::Ok({
+                        crate::api::simple::init_app();
+                    })?;
+                    Ok(output_ok)
+                })())
+            }
+        },
+    )
+}
+
+// Section: dart2rust
+
+impl SseDecode for String {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        let mut inner = <Vec<u8>>::sse_decode(deserializer);
+        return String::from_utf8(inner).unwrap();
+    }
+}
+
+impl SseDecode for Vec<u8> {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        let mut len_ = <i32>::sse_decode(deserializer);
+        let mut ans_ = vec![];
+        for idx_ in 0..len_ {
+            ans_.push(<u8>::sse_decode(deserializer));
+        }
+        return ans_;
+    }
+}
+
+impl SseDecode for u8 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        deserializer.cursor.read_u8().unwrap()
+    }
+}
+
+impl SseDecode for () {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {}
+}
+
+impl SseDecode for i32 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        deserializer.cursor.read_i32::<NativeEndian>().unwrap()
+    }
+}
+
+impl SseDecode for bool {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        deserializer.cursor.read_u8().unwrap() != 0
+    }
+}
+
+fn pde_ffi_dispatcher_primary_impl(
+    func_id: i32,
+    port: flutter_rust_bridge::for_generated::MessagePort,
+    ptr: flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
+    rust_vec_len: i32,
+    data_len: i32,
+) {
+    // Codec=Pde (Serialization + dispatch), see doc to use other codecs
+    match func_id {
+        2 => wire__crate__api__simple__init_app_impl(port, ptr, rust_vec_len, data_len),
+        _ => unreachable!(),
+    }
+}
+
+fn pde_ffi_dispatcher_sync_impl(
+    func_id: i32,
+    ptr: flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
+    rust_vec_len: i32,
+    data_len: i32,
+) -> flutter_rust_bridge::for_generated::WireSyncRust2DartSse {
+    // Codec=Pde (Serialization + dispatch), see doc to use other codecs
+    match func_id {
+        1 => wire__crate__api__simple__greet_impl(ptr, rust_vec_len, data_len),
+        _ => unreachable!(),
+    }
+}
+
+// Section: rust2dart
+
+impl SseEncode for String {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        <Vec<u8>>::sse_encode(self.into_bytes(), serializer);
+    }
+}
+
+impl SseEncode for Vec<u8> {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        <i32>::sse_encode(self.len() as _, serializer);
+        for item in self {
+            <u8>::sse_encode(item, serializer);
+        }
+    }
+}
+
+impl SseEncode for u8 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        serializer.cursor.write_u8(self).unwrap();
+    }
+}
+
+impl SseEncode for () {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {}
+}
+
+impl SseEncode for i32 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        serializer.cursor.write_i32::<NativeEndian>(self).unwrap();
+    }
+}
+
+impl SseEncode for bool {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        serializer.cursor.write_u8(self as _).unwrap();
+    }
+}
+
+#[cfg(not(target_family = "wasm"))]
+mod io {
+    // This file is automatically generated, so please do not edit it.
+    // @generated by `flutter_rust_bridge`@ 2.11.1.
+
+    // Section: imports
+
+    use super::*;
+    use flutter_rust_bridge::for_generated::byteorder::{
+        NativeEndian, ReadBytesExt, WriteBytesExt,
+    };
+    use flutter_rust_bridge::for_generated::{transform_result_dco, Lifetimeable, Lockable};
+    use flutter_rust_bridge::{Handler, IntoIntoDart};
+
+    // Section: boilerplate
+
+    flutter_rust_bridge::frb_generated_boilerplate_io!();
+}
+#[cfg(not(target_family = "wasm"))]
+pub use io::*;
+
+/// cbindgen:ignore
+#[cfg(target_family = "wasm")]
+mod web {
+    // This file is automatically generated, so please do not edit it.
+    // @generated by `flutter_rust_bridge`@ 2.11.1.
+
+    // Section: imports
+
+    use super::*;
+    use flutter_rust_bridge::for_generated::byteorder::{
+        NativeEndian, ReadBytesExt, WriteBytesExt,
+    };
+    use flutter_rust_bridge::for_generated::wasm_bindgen;
+    use flutter_rust_bridge::for_generated::wasm_bindgen::prelude::*;
+    use flutter_rust_bridge::for_generated::{transform_result_dco, Lifetimeable, Lockable};
+    use flutter_rust_bridge::{Handler, IntoIntoDart};
+
+    // Section: boilerplate
+
+    flutter_rust_bridge::frb_generated_boilerplate_web!();
+}
+#[cfg(target_family = "wasm")]
+pub use web::*;

rust/src/lib.rs

@@ -0,0 +1,2 @@
+pub mod api;
+mod frb_generated;

rust_builder/.gitignore

@@ -0,0 +1,29 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+# Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock.
+/pubspec.lock
+**/doc/api/
+.dart_tool/
+build/

rust_builder/README.md

@@ -0,0 +1 @@
+Please ignore this folder, which is just glue to build Rust with Flutter.

rust_builder/android/.gitignore

@@ -0,0 +1,9 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.cxx

rust_builder/android/build.gradle

@@ -0,0 +1,56 @@
+// The Android Gradle Plugin builds the native code with the Android NDK.
+
+group 'com.flutter_rust_bridge.rust_lib_abawo_bt_app'
+version '1.0'
+
+buildscript {
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        // The Android Gradle Plugin knows how to build native code with the NDK.
+        classpath 'com.android.tools.build:gradle:7.3.0'
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    if (project.android.hasProperty("namespace")) {
+        namespace 'com.flutter_rust_bridge.rust_lib_abawo_bt_app'
+    }
+
+    // Bumping the plugin compileSdkVersion requires all clients of this plugin
+    // to bump the version in their app.
+    compileSdkVersion 33
+
+    // Use the NDK version
+    // declared in /android/app/build.gradle file of the Flutter project.
+    // Replace it with a version number if this plugin requires a specfic NDK version.
+    // (e.g. ndkVersion "23.1.7779620")
+    ndkVersion android.ndkVersion
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    defaultConfig {
+        minSdkVersion 19
+    }
+}
+
+apply from: "../cargokit/gradle/plugin.gradle"
+cargokit {
+    manifestDir = "../../rust"
+    libname = "rust_lib_abawo_bt_app"
+}

rust_builder/android/settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'rust_lib_abawo_bt_app'

rust_builder/android/src/main/AndroidManifest.xml

@@ -0,0 +1,3 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.flutter_rust_bridge.rust_lib_abawo_bt_app">
+</manifest>

rust_builder/cargokit/.gitignore

@@ -0,0 +1,4 @@
+target
+.dart_tool
+*.iml
+!pubspec.lock

rust_builder/cargokit/LICENSE

@@ -0,0 +1,42 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+Copyright 2022 Matej Knopp
+
+================================================================================
+
+MIT LICENSE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
+OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+================================================================================
+
+APACHE LICENSE, VERSION 2.0
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+

rust_builder/cargokit/README

@@ -0,0 +1,11 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+Experimental repository to provide glue for seamlessly integrating cargo build
+with flutter plugins and packages.
+
+See https://matejknopp.com/post/flutter_plugin_in_rust_with_no_prebuilt_binaries/
+for a tutorial on how to use Cargokit.
+
+Example plugin available at https://github.com/irondash/hello_rust_ffi_plugin.
+

rust_builder/cargokit/build_pod.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+set -e
+
+BASEDIR=$(dirname "$0")
+
+# Workaround for https://github.com/dart-lang/pub/issues/4010
+BASEDIR=$(cd "$BASEDIR" ; pwd -P)
+
+# Remove XCode SDK from path. Otherwise this breaks tool compilation when building iOS project
+NEW_PATH=`echo $PATH | tr ":" "\n" | grep -v "Contents/Developer/" | tr "\n" ":"`
+
+export PATH=${NEW_PATH%?} # remove trailing :
+
+env
+
+# Platform name (macosx, iphoneos, iphonesimulator)
+export CARGOKIT_DARWIN_PLATFORM_NAME=$PLATFORM_NAME
+
+# Arctive architectures (arm64, armv7, x86_64), space separated.
+export CARGOKIT_DARWIN_ARCHS=$ARCHS
+
+# Current build configuration (Debug, Release)
+export CARGOKIT_CONFIGURATION=$CONFIGURATION
+
+# Path to directory containing Cargo.toml.
+export CARGOKIT_MANIFEST_DIR=$PODS_TARGET_SRCROOT/$1
+
+# Temporary directory for build artifacts.
+export CARGOKIT_TARGET_TEMP_DIR=$TARGET_TEMP_DIR
+
+# Output directory for final artifacts.
+export CARGOKIT_OUTPUT_DIR=$PODS_CONFIGURATION_BUILD_DIR/$PRODUCT_NAME
+
+# Directory to store built tool artifacts.
+export CARGOKIT_TOOL_TEMP_DIR=$TARGET_TEMP_DIR/build_tool
+
+# Directory inside root project. Not necessarily the top level directory of root project.
+export CARGOKIT_ROOT_PROJECT_DIR=$SRCROOT
+
+FLUTTER_EXPORT_BUILD_ENVIRONMENT=(
+  "$PODS_ROOT/../Flutter/ephemeral/flutter_export_environment.sh" # macOS
+  "$PODS_ROOT/../Flutter/flutter_export_environment.sh" # iOS
+)
+
+for path in "${FLUTTER_EXPORT_BUILD_ENVIRONMENT[@]}"
+do
+  if [[ -f "$path" ]]; then
+    source "$path"
+  fi
+done
+
+sh "$BASEDIR/run_build_tool.sh" build-pod "$@"
+
+# Make a symlink from built framework to phony file, which will be used as input to
+# build script. This should force rebuild (podspec currently doesn't support alwaysOutOfDate
+# attribute on custom build phase)
+ln -fs "$OBJROOT/XCBuildData/build.db" "${BUILT_PRODUCTS_DIR}/cargokit_phony"
+ln -fs "${BUILT_PRODUCTS_DIR}/${EXECUTABLE_PATH}" "${BUILT_PRODUCTS_DIR}/cargokit_phony_out"

rust_builder/cargokit/build_tool/README.md

@@ -0,0 +1,5 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+A sample command-line application with an entrypoint in `bin/`, library code
+in `lib/`, and example unit test in `test/`.

rust_builder/cargokit/build_tool/analysis_options.yaml

@@ -0,0 +1,34 @@
+# This is copied from Cargokit (which is the official way to use it currently)
+# Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+# This file configures the static analysis results for your project (errors,
+# warnings, and lints).
+#
+# This enables the 'recommended' set of lints from `package:lints`.
+# This set helps identify many issues that may lead to problems when running
+# or consuming Dart code, and enforces writing Dart using a single, idiomatic
+# style and format.
+#
+# If you want a smaller set of lints you can change this to specify
+# 'package:lints/core.yaml'. These are just the most critical lints
+# (the recommended set includes the core lints).
+# The core lints are also what is used by pub.dev for scoring packages.
+
+include: package:lints/recommended.yaml
+
+# Uncomment the following section to specify additional rules.
+
+linter:
+  rules:
+    - prefer_relative_imports
+    - directives_ordering
+
+# analyzer:
+#   exclude:
+#     - path/to/excluded/files/**
+
+# For more information about the core and recommended set of lints, see
+# https://dart.dev/go/core-lints
+
+# For additional information about configuring this file, see
+# https://dart.dev/guides/language/analysis-options

rust_builder/cargokit/build_tool/bin/build_tool.dart

@@ -0,0 +1,8 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'package:build_tool/build_tool.dart' as build_tool;
+
+void main(List<String> arguments) {
+  build_tool.runMain(arguments);
+}

rust_builder/cargokit/build_tool/lib/build_tool.dart

@@ -0,0 +1,8 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'src/build_tool.dart' as build_tool;
+
+Future<void> runMain(List<String> args) async {
+  return build_tool.runMain(args);
+}

rust_builder/cargokit/build_tool/lib/src/android_environment.dart

@@ -0,0 +1,195 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+import 'dart:isolate';
+import 'dart:math' as math;
+
+import 'package:collection/collection.dart';
+import 'package:path/path.dart' as path;
+import 'package:version/version.dart';
+
+import 'target.dart';
+import 'util.dart';
+
+class AndroidEnvironment {
+  AndroidEnvironment({
+    required this.sdkPath,
+    required this.ndkVersion,
+    required this.minSdkVersion,
+    required this.targetTempDir,
+    required this.target,
+  });
+
+  static void clangLinkerWrapper(List<String> args) {
+    final clang = Platform.environment['_CARGOKIT_NDK_LINK_CLANG'];
+    if (clang == null) {
+      throw Exception(
+          "cargo-ndk rustc linker: didn't find _CARGOKIT_NDK_LINK_CLANG env var");
+    }
+    final target = Platform.environment['_CARGOKIT_NDK_LINK_TARGET'];
+    if (target == null) {
+      throw Exception(
+          "cargo-ndk rustc linker: didn't find _CARGOKIT_NDK_LINK_TARGET env var");
+    }
+
+    runCommand(clang, [
+      target,
+      ...args,
+    ]);
+  }
+
+  /// Full path to Android SDK.
+  final String sdkPath;
+
+  /// Full version of Android NDK.
+  final String ndkVersion;
+
+  /// Minimum supported SDK version.
+  final int minSdkVersion;
+
+  /// Target directory for build artifacts.
+  final String targetTempDir;
+
+  /// Target being built.
+  final Target target;
+
+  bool ndkIsInstalled() {
+    final ndkPath = path.join(sdkPath, 'ndk', ndkVersion);
+    final ndkPackageXml = File(path.join(ndkPath, 'package.xml'));
+    return ndkPackageXml.existsSync();
+  }
+
+  void installNdk({
+    required String javaHome,
+  }) {
+    final sdkManagerExtension = Platform.isWindows ? '.bat' : '';
+    final sdkManager = path.join(
+      sdkPath,
+      'cmdline-tools',
+      'latest',
+      'bin',
+      'sdkmanager$sdkManagerExtension',
+    );
+
+    log.info('Installing NDK $ndkVersion');
+    runCommand(sdkManager, [
+      '--install',
+      'ndk;$ndkVersion',
+    ], environment: {
+      'JAVA_HOME': javaHome,
+    });
+  }
+
+  Future<Map<String, String>> buildEnvironment() async {
+    final hostArch = Platform.isMacOS
+        ? "darwin-x86_64"
+        : (Platform.isLinux ? "linux-x86_64" : "windows-x86_64");
+
+    final ndkPath = path.join(sdkPath, 'ndk', ndkVersion);
+    final toolchainPath = path.join(
+      ndkPath,
+      'toolchains',
+      'llvm',
+      'prebuilt',
+      hostArch,
+      'bin',
+    );
+
+    final minSdkVersion =
+        math.max(target.androidMinSdkVersion!, this.minSdkVersion);
+
+    final exe = Platform.isWindows ? '.exe' : '';
+
+    final arKey = 'AR_${target.rust}';
+    final arValue = ['${target.rust}-ar', 'llvm-ar', 'llvm-ar.exe']
+        .map((e) => path.join(toolchainPath, e))
+        .firstWhereOrNull((element) => File(element).existsSync());
+    if (arValue == null) {
+      throw Exception('Failed to find ar for $target in $toolchainPath');
+    }
+
+    final targetArg = '--target=${target.rust}$minSdkVersion';
+
+    final ccKey = 'CC_${target.rust}';
+    final ccValue = path.join(toolchainPath, 'clang$exe');
+    final cfFlagsKey = 'CFLAGS_${target.rust}';
+    final cFlagsValue = targetArg;
+
+    final cxxKey = 'CXX_${target.rust}';
+    final cxxValue = path.join(toolchainPath, 'clang++$exe');
+    final cxxFlagsKey = 'CXXFLAGS_${target.rust}';
+    final cxxFlagsValue = targetArg;
+
+    final linkerKey =
+        'cargo_target_${target.rust.replaceAll('-', '_')}_linker'.toUpperCase();
+
+    final ranlibKey = 'RANLIB_${target.rust}';
+    final ranlibValue = path.join(toolchainPath, 'llvm-ranlib$exe');
+
+    final ndkVersionParsed = Version.parse(ndkVersion);
+    final rustFlagsKey = 'CARGO_ENCODED_RUSTFLAGS';
+    final rustFlagsValue = _libGccWorkaround(targetTempDir, ndkVersionParsed);
+
+    final runRustTool =
+        Platform.isWindows ? 'run_build_tool.cmd' : 'run_build_tool.sh';
+
+    final packagePath = (await Isolate.resolvePackageUri(
+            Uri.parse('package:build_tool/buildtool.dart')))!
+        .toFilePath();
+    final selfPath = path.canonicalize(path.join(
+      packagePath,
+      '..',
+      '..',
+      '..',
+      runRustTool,
+    ));
+
+    // Make sure that run_build_tool is working properly even initially launched directly
+    // through dart run.
+    final toolTempDir =
+        Platform.environment['CARGOKIT_TOOL_TEMP_DIR'] ?? targetTempDir;
+
+    return {
+      arKey: arValue,
+      ccKey: ccValue,
+      cfFlagsKey: cFlagsValue,
+      cxxKey: cxxValue,
+      cxxFlagsKey: cxxFlagsValue,
+      ranlibKey: ranlibValue,
+      rustFlagsKey: rustFlagsValue,
+      linkerKey: selfPath,
+      // Recognized by main() so we know when we're acting as a wrapper
+      '_CARGOKIT_NDK_LINK_TARGET': targetArg,
+      '_CARGOKIT_NDK_LINK_CLANG': ccValue,
+      'CARGOKIT_TOOL_TEMP_DIR': toolTempDir,
+    };
+  }
+
+  // Workaround for libgcc missing in NDK23, inspired by cargo-ndk
+  String _libGccWorkaround(String buildDir, Version ndkVersion) {
+    final workaroundDir = path.join(
+      buildDir,
+      'cargokit',
+      'libgcc_workaround',
+      '${ndkVersion.major}',
+    );
+    Directory(workaroundDir).createSync(recursive: true);
+    if (ndkVersion.major >= 23) {
+      File(path.join(workaroundDir, 'libgcc.a'))
+          .writeAsStringSync('INPUT(-lunwind)');
+    } else {
+      // Other way around, untested, forward libgcc.a from libunwind once Rust
+      // gets updated for NDK23+.
+      File(path.join(workaroundDir, 'libunwind.a'))
+          .writeAsStringSync('INPUT(-lgcc)');
+    }
+
+    var rustFlags = Platform.environment['CARGO_ENCODED_RUSTFLAGS'] ?? '';
+    if (rustFlags.isNotEmpty) {
+      rustFlags = '$rustFlags\x1f';
+    }
+    rustFlags = '$rustFlags-L\x1f$workaroundDir';
+    return rustFlags;
+  }
+}

rust_builder/cargokit/build_tool/lib/src/artifacts_provider.dart

@@ -0,0 +1,266 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:ed25519_edwards/ed25519_edwards.dart';
+import 'package:http/http.dart';
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as path;
+
+import 'builder.dart';
+import 'crate_hash.dart';
+import 'options.dart';
+import 'precompile_binaries.dart';
+import 'rustup.dart';
+import 'target.dart';
+
+class Artifact {
+  /// File system location of the artifact.
+  final String path;
+
+  /// Actual file name that the artifact should have in destination folder.
+  final String finalFileName;
+
+  AritifactType get type {
+    if (finalFileName.endsWith('.dll') ||
+        finalFileName.endsWith('.dll.lib') ||
+        finalFileName.endsWith('.pdb') ||
+        finalFileName.endsWith('.so') ||
+        finalFileName.endsWith('.dylib')) {
+      return AritifactType.dylib;
+    } else if (finalFileName.endsWith('.lib') || finalFileName.endsWith('.a')) {
+      return AritifactType.staticlib;
+    } else {
+      throw Exception('Unknown artifact type for $finalFileName');
+    }
+  }
+
+  Artifact({
+    required this.path,
+    required this.finalFileName,
+  });
+}
+
+final _log = Logger('artifacts_provider');
+
+class ArtifactProvider {
+  ArtifactProvider({
+    required this.environment,
+    required this.userOptions,
+  });
+
+  final BuildEnvironment environment;
+  final CargokitUserOptions userOptions;
+
+  Future<Map<Target, List<Artifact>>> getArtifacts(List<Target> targets) async {
+    final result = await _getPrecompiledArtifacts(targets);
+
+    final pendingTargets = List.of(targets);
+    pendingTargets.removeWhere((element) => result.containsKey(element));
+
+    if (pendingTargets.isEmpty) {
+      return result;
+    }
+
+    final rustup = Rustup();
+    for (final target in targets) {
+      final builder = RustBuilder(target: target, environment: environment);
+      builder.prepare(rustup);
+      _log.info('Building ${environment.crateInfo.packageName} for $target');
+      final targetDir = await builder.build();
+      // For local build accept both static and dynamic libraries.
+      final artifactNames = <String>{
+        ...getArtifactNames(
+          target: target,
+          libraryName: environment.crateInfo.packageName,
+          aritifactType: AritifactType.dylib,
+          remote: false,
+        ),
+        ...getArtifactNames(
+          target: target,
+          libraryName: environment.crateInfo.packageName,
+          aritifactType: AritifactType.staticlib,
+          remote: false,
+        )
+      };
+      final artifacts = artifactNames
+          .map((artifactName) => Artifact(
+                path: path.join(targetDir, artifactName),
+                finalFileName: artifactName,
+              ))
+          .where((element) => File(element.path).existsSync())
+          .toList();
+      result[target] = artifacts;
+    }
+    return result;
+  }
+
+  Future<Map<Target, List<Artifact>>> _getPrecompiledArtifacts(
+      List<Target> targets) async {
+    if (userOptions.usePrecompiledBinaries == false) {
+      _log.info('Precompiled binaries are disabled');
+      return {};
+    }
+    if (environment.crateOptions.precompiledBinaries == null) {
+      _log.fine('Precompiled binaries not enabled for this crate');
+      return {};
+    }
+
+    final start = Stopwatch()..start();
+    final crateHash = CrateHash.compute(environment.manifestDir,
+        tempStorage: environment.targetTempDir);
+    _log.fine(
+        'Computed crate hash $crateHash in ${start.elapsedMilliseconds}ms');
+
+    final downloadedArtifactsDir =
+        path.join(environment.targetTempDir, 'precompiled', crateHash);
+    Directory(downloadedArtifactsDir).createSync(recursive: true);
+
+    final res = <Target, List<Artifact>>{};
+
+    for (final target in targets) {
+      final requiredArtifacts = getArtifactNames(
+        target: target,
+        libraryName: environment.crateInfo.packageName,
+        remote: true,
+      );
+      final artifactsForTarget = <Artifact>[];
+
+      for (final artifact in requiredArtifacts) {
+        final fileName = PrecompileBinaries.fileName(target, artifact);
+        final downloadedPath = path.join(downloadedArtifactsDir, fileName);
+        if (!File(downloadedPath).existsSync()) {
+          final signatureFileName =
+              PrecompileBinaries.signatureFileName(target, artifact);
+          await _tryDownloadArtifacts(
+            crateHash: crateHash,
+            fileName: fileName,
+            signatureFileName: signatureFileName,
+            finalPath: downloadedPath,
+          );
+        }
+        if (File(downloadedPath).existsSync()) {
+          artifactsForTarget.add(Artifact(
+            path: downloadedPath,
+            finalFileName: artifact,
+          ));
+        } else {
+          break;
+        }
+      }
+
+      // Only provide complete set of artifacts.
+      if (artifactsForTarget.length == requiredArtifacts.length) {
+        _log.fine('Found precompiled artifacts for $target');
+        res[target] = artifactsForTarget;
+      }
+    }
+
+    return res;
+  }
+
+  static Future<Response> _get(Uri url, {Map<String, String>? headers}) async {
+    int attempt = 0;
+    const maxAttempts = 10;
+    while (true) {
+      try {
+        return await get(url, headers: headers);
+      } on SocketException catch (e) {
+        // Try to detect reset by peer error and retry.
+        if (attempt++ < maxAttempts &&
+            (e.osError?.errorCode == 54 || e.osError?.errorCode == 10054)) {
+          _log.severe(
+              'Failed to download $url: $e, attempt $attempt of $maxAttempts, will retry...');
+          await Future.delayed(Duration(seconds: 1));
+          continue;
+        } else {
+          rethrow;
+        }
+      }
+    }
+  }
+
+  Future<void> _tryDownloadArtifacts({
+    required String crateHash,
+    required String fileName,
+    required String signatureFileName,
+    required String finalPath,
+  }) async {
+    final precompiledBinaries = environment.crateOptions.precompiledBinaries!;
+    final prefix = precompiledBinaries.uriPrefix;
+    final url = Uri.parse('$prefix$crateHash/$fileName');
+    final signatureUrl = Uri.parse('$prefix$crateHash/$signatureFileName');
+    _log.fine('Downloading signature from $signatureUrl');
+    final signature = await _get(signatureUrl);
+    if (signature.statusCode == 404) {
+      _log.warning(
+          'Precompiled binaries not available for crate hash $crateHash ($fileName)');
+      return;
+    }
+    if (signature.statusCode != 200) {
+      _log.severe(
+          'Failed to download signature $signatureUrl: status ${signature.statusCode}');
+      return;
+    }
+    _log.fine('Downloading binary from $url');
+    final res = await _get(url);
+    if (res.statusCode != 200) {
+      _log.severe('Failed to download binary $url: status ${res.statusCode}');
+      return;
+    }
+    if (verify(
+        precompiledBinaries.publicKey, res.bodyBytes, signature.bodyBytes)) {
+      File(finalPath).writeAsBytesSync(res.bodyBytes);
+    } else {
+      _log.shout('Signature verification failed! Ignoring binary.');
+    }
+  }
+}
+
+enum AritifactType {
+  staticlib,
+  dylib,
+}
+
+AritifactType artifactTypeForTarget(Target target) {
+  if (target.darwinPlatform != null) {
+    return AritifactType.staticlib;
+  } else {
+    return AritifactType.dylib;
+  }
+}
+
+List<String> getArtifactNames({
+  required Target target,
+  required String libraryName,
+  required bool remote,
+  AritifactType? aritifactType,
+}) {
+  aritifactType ??= artifactTypeForTarget(target);
+  if (target.darwinArch != null) {
+    if (aritifactType == AritifactType.staticlib) {
+      return ['lib$libraryName.a'];
+    } else {
+      return ['lib$libraryName.dylib'];
+    }
+  } else if (target.rust.contains('-windows-')) {
+    if (aritifactType == AritifactType.staticlib) {
+      return ['$libraryName.lib'];
+    } else {
+      return [
+        '$libraryName.dll',
+        '$libraryName.dll.lib',
+        if (!remote) '$libraryName.pdb'
+      ];
+    }
+  } else if (target.rust.contains('-linux-')) {
+    if (aritifactType == AritifactType.staticlib) {
+      return ['lib$libraryName.a'];
+    } else {
+      return ['lib$libraryName.so'];
+    }
+  } else {
+    throw Exception("Unsupported target: ${target.rust}");
+  }
+}

rust_builder/cargokit/build_tool/lib/src/build_cmake.dart

@@ -0,0 +1,40 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:path/path.dart' as path;
+
+import 'artifacts_provider.dart';
+import 'builder.dart';
+import 'environment.dart';
+import 'options.dart';
+import 'target.dart';
+
+class BuildCMake {
+  final CargokitUserOptions userOptions;
+
+  BuildCMake({required this.userOptions});
+
+  Future<void> build() async {
+    final targetPlatform = Environment.targetPlatform;
+    final target = Target.forFlutterName(Environment.targetPlatform);
+    if (target == null) {
+      throw Exception("Unknown target platform: $targetPlatform");
+    }
+
+    final environment = BuildEnvironment.fromEnvironment(isAndroid: false);
+    final provider =
+        ArtifactProvider(environment: environment, userOptions: userOptions);
+    final artifacts = await provider.getArtifacts([target]);
+
+    final libs = artifacts[target]!;
+
+    for (final lib in libs) {
+      if (lib.type == AritifactType.dylib) {
+        File(lib.path)
+            .copySync(path.join(Environment.outputDir, lib.finalFileName));
+      }
+    }
+  }
+}

rust_builder/cargokit/build_tool/lib/src/build_gradle.dart

@@ -0,0 +1,49 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as path;
+
+import 'artifacts_provider.dart';
+import 'builder.dart';
+import 'environment.dart';
+import 'options.dart';
+import 'target.dart';
+
+final log = Logger('build_gradle');
+
+class BuildGradle {
+  BuildGradle({required this.userOptions});
+
+  final CargokitUserOptions userOptions;
+
+  Future<void> build() async {
+    final targets = Environment.targetPlatforms.map((arch) {
+      final target = Target.forFlutterName(arch);
+      if (target == null) {
+        throw Exception(
+            "Unknown darwin target or platform: $arch, ${Environment.darwinPlatformName}");
+      }
+      return target;
+    }).toList();
+
+    final environment = BuildEnvironment.fromEnvironment(isAndroid: true);
+    final provider =
+        ArtifactProvider(environment: environment, userOptions: userOptions);
+    final artifacts = await provider.getArtifacts(targets);
+
+    for (final target in targets) {
+      final libs = artifacts[target]!;
+      final outputDir = path.join(Environment.outputDir, target.android!);
+      Directory(outputDir).createSync(recursive: true);
+
+      for (final lib in libs) {
+        if (lib.type == AritifactType.dylib) {
+          File(lib.path).copySync(path.join(outputDir, lib.finalFileName));
+        }
+      }
+    }
+  }
+}

rust_builder/cargokit/build_tool/lib/src/build_pod.dart

@@ -0,0 +1,89 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:path/path.dart' as path;
+
+import 'artifacts_provider.dart';
+import 'builder.dart';
+import 'environment.dart';
+import 'options.dart';
+import 'target.dart';
+import 'util.dart';
+
+class BuildPod {
+  BuildPod({required this.userOptions});
+
+  final CargokitUserOptions userOptions;
+
+  Future<void> build() async {
+    final targets = Environment.darwinArchs.map((arch) {
+      final target = Target.forDarwin(
+          platformName: Environment.darwinPlatformName, darwinAarch: arch);
+      if (target == null) {
+        throw Exception(
+            "Unknown darwin target or platform: $arch, ${Environment.darwinPlatformName}");
+      }
+      return target;
+    }).toList();
+
+    final environment = BuildEnvironment.fromEnvironment(isAndroid: false);
+    final provider =
+        ArtifactProvider(environment: environment, userOptions: userOptions);
+    final artifacts = await provider.getArtifacts(targets);
+
+    void performLipo(String targetFile, Iterable<String> sourceFiles) {
+      runCommand("lipo", [
+        '-create',
+        ...sourceFiles,
+        '-output',
+        targetFile,
+      ]);
+    }
+
+    final outputDir = Environment.outputDir;
+
+    Directory(outputDir).createSync(recursive: true);
+
+    final staticLibs = artifacts.values
+        .expand((element) => element)
+        .where((element) => element.type == AritifactType.staticlib)
+        .toList();
+    final dynamicLibs = artifacts.values
+        .expand((element) => element)
+        .where((element) => element.type == AritifactType.dylib)
+        .toList();
+
+    final libName = environment.crateInfo.packageName;
+
+    // If there is static lib, use it and link it with pod
+    if (staticLibs.isNotEmpty) {
+      final finalTargetFile = path.join(outputDir, "lib$libName.a");
+      performLipo(finalTargetFile, staticLibs.map((e) => e.path));
+    } else {
+      // Otherwise try to replace bundle dylib with our dylib
+      final bundlePaths = [
+        '$libName.framework/Versions/A/$libName',
+        '$libName.framework/$libName',
+      ];
+
+      for (final bundlePath in bundlePaths) {
+        final targetFile = path.join(outputDir, bundlePath);
+        if (File(targetFile).existsSync()) {
+          performLipo(targetFile, dynamicLibs.map((e) => e.path));
+
+          // Replace absolute id with @rpath one so that it works properly
+          // when moved to Frameworks.
+          runCommand("install_name_tool", [
+            '-id',
+            '@rpath/$bundlePath',
+            targetFile,
+          ]);
+          return;
+        }
+      }
+      throw Exception('Unable to find bundle for dynamic library');
+    }
+  }
+}

rust_builder/cargokit/build_tool/lib/src/build_tool.dart

@@ -0,0 +1,271 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:args/command_runner.dart';
+import 'package:ed25519_edwards/ed25519_edwards.dart';
+import 'package:github/github.dart';
+import 'package:hex/hex.dart';
+import 'package:logging/logging.dart';
+
+import 'android_environment.dart';
+import 'build_cmake.dart';
+import 'build_gradle.dart';
+import 'build_pod.dart';
+import 'logging.dart';
+import 'options.dart';
+import 'precompile_binaries.dart';
+import 'target.dart';
+import 'util.dart';
+import 'verify_binaries.dart';
+
+final log = Logger('build_tool');
+
+abstract class BuildCommand extends Command {
+  Future<void> runBuildCommand(CargokitUserOptions options);
+
+  @override
+  Future<void> run() async {
+    final options = CargokitUserOptions.load();
+
+    if (options.verboseLogging ||
+        Platform.environment['CARGOKIT_VERBOSE'] == '1') {
+      enableVerboseLogging();
+    }
+
+    await runBuildCommand(options);
+  }
+}
+
+class BuildPodCommand extends BuildCommand {
+  @override
+  final name = 'build-pod';
+
+  @override
+  final description = 'Build cocoa pod library';
+
+  @override
+  Future<void> runBuildCommand(CargokitUserOptions options) async {
+    final build = BuildPod(userOptions: options);
+    await build.build();
+  }
+}
+
+class BuildGradleCommand extends BuildCommand {
+  @override
+  final name = 'build-gradle';
+
+  @override
+  final description = 'Build android library';
+
+  @override
+  Future<void> runBuildCommand(CargokitUserOptions options) async {
+    final build = BuildGradle(userOptions: options);
+    await build.build();
+  }
+}
+
+class BuildCMakeCommand extends BuildCommand {
+  @override
+  final name = 'build-cmake';
+
+  @override
+  final description = 'Build CMake library';
+
+  @override
+  Future<void> runBuildCommand(CargokitUserOptions options) async {
+    final build = BuildCMake(userOptions: options);
+    await build.build();
+  }
+}
+
+class GenKeyCommand extends Command {
+  @override
+  final name = 'gen-key';
+
+  @override
+  final description = 'Generate key pair for signing precompiled binaries';
+
+  @override
+  void run() {
+    final kp = generateKey();
+    final private = HEX.encode(kp.privateKey.bytes);
+    final public = HEX.encode(kp.publicKey.bytes);
+    print("Private Key: $private");
+    print("Public Key: $public");
+  }
+}
+
+class PrecompileBinariesCommand extends Command {
+  PrecompileBinariesCommand() {
+    argParser
+      ..addOption(
+        'repository',
+        mandatory: true,
+        help: 'Github repository slug in format owner/name',
+      )
+      ..addOption(
+        'manifest-dir',
+        mandatory: true,
+        help: 'Directory containing Cargo.toml',
+      )
+      ..addMultiOption('target',
+          help: 'Rust target triple of artifact to build.\n'
+              'Can be specified multiple times or omitted in which case\n'
+              'all targets for current platform will be built.')
+      ..addOption(
+        'android-sdk-location',
+        help: 'Location of Android SDK (if available)',
+      )
+      ..addOption(
+        'android-ndk-version',
+        help: 'Android NDK version (if available)',
+      )
+      ..addOption(
+        'android-min-sdk-version',
+        help: 'Android minimum rquired version (if available)',
+      )
+      ..addOption(
+        'temp-dir',
+        help: 'Directory to store temporary build artifacts',
+      )
+      ..addFlag(
+        "verbose",
+        abbr: "v",
+        defaultsTo: false,
+        help: "Enable verbose logging",
+      );
+  }
+
+  @override
+  final name = 'precompile-binaries';
+
+  @override
+  final description = 'Prebuild and upload binaries\n'
+      'Private key must be passed through PRIVATE_KEY environment variable. '
+      'Use gen_key through generate priave key.\n'
+      'Github token must be passed as GITHUB_TOKEN environment variable.\n';
+
+  @override
+  Future<void> run() async {
+    final verbose = argResults!['verbose'] as bool;
+    if (verbose) {
+      enableVerboseLogging();
+    }
+
+    final privateKeyString = Platform.environment['PRIVATE_KEY'];
+    if (privateKeyString == null) {
+      throw ArgumentError('Missing PRIVATE_KEY environment variable');
+    }
+    final githubToken = Platform.environment['GITHUB_TOKEN'];
+    if (githubToken == null) {
+      throw ArgumentError('Missing GITHUB_TOKEN environment variable');
+    }
+    final privateKey = HEX.decode(privateKeyString);
+    if (privateKey.length != 64) {
+      throw ArgumentError('Private key must be 64 bytes long');
+    }
+    final manifestDir = argResults!['manifest-dir'] as String;
+    if (!Directory(manifestDir).existsSync()) {
+      throw ArgumentError('Manifest directory does not exist: $manifestDir');
+    }
+    String? androidMinSdkVersionString =
+        argResults!['android-min-sdk-version'] as String?;
+    int? androidMinSdkVersion;
+    if (androidMinSdkVersionString != null) {
+      androidMinSdkVersion = int.tryParse(androidMinSdkVersionString);
+      if (androidMinSdkVersion == null) {
+        throw ArgumentError(
+            'Invalid android-min-sdk-version: $androidMinSdkVersionString');
+      }
+    }
+    final targetStrigns = argResults!['target'] as List<String>;
+    final targets = targetStrigns.map((target) {
+      final res = Target.forRustTriple(target);
+      if (res == null) {
+        throw ArgumentError('Invalid target: $target');
+      }
+      return res;
+    }).toList(growable: false);
+    final precompileBinaries = PrecompileBinaries(
+      privateKey: PrivateKey(privateKey),
+      githubToken: githubToken,
+      manifestDir: manifestDir,
+      repositorySlug: RepositorySlug.full(argResults!['repository'] as String),
+      targets: targets,
+      androidSdkLocation: argResults!['android-sdk-location'] as String?,
+      androidNdkVersion: argResults!['android-ndk-version'] as String?,
+      androidMinSdkVersion: androidMinSdkVersion,
+      tempDir: argResults!['temp-dir'] as String?,
+    );
+
+    await precompileBinaries.run();
+  }
+}
+
+class VerifyBinariesCommand extends Command {
+  VerifyBinariesCommand() {
+    argParser.addOption(
+      'manifest-dir',
+      mandatory: true,
+      help: 'Directory containing Cargo.toml',
+    );
+  }
+
+  @override
+  final name = "verify-binaries";
+
+  @override
+  final description = 'Verifies published binaries\n'
+      'Checks whether there is a binary published for each targets\n'
+      'and checks the signature.';
+
+  @override
+  Future<void> run() async {
+    final manifestDir = argResults!['manifest-dir'] as String;
+    final verifyBinaries = VerifyBinaries(
+      manifestDir: manifestDir,
+    );
+    await verifyBinaries.run();
+  }
+}
+
+Future<void> runMain(List<String> args) async {
+  try {
+    // Init logging before options are loaded
+    initLogging();
+
+    if (Platform.environment['_CARGOKIT_NDK_LINK_TARGET'] != null) {
+      return AndroidEnvironment.clangLinkerWrapper(args);
+    }
+
+    final runner = CommandRunner('build_tool', 'Cargokit built_tool')
+      ..addCommand(BuildPodCommand())
+      ..addCommand(BuildGradleCommand())
+      ..addCommand(BuildCMakeCommand())
+      ..addCommand(GenKeyCommand())
+      ..addCommand(PrecompileBinariesCommand())
+      ..addCommand(VerifyBinariesCommand());
+
+    await runner.run(args);
+  } on ArgumentError catch (e) {
+    stderr.writeln(e.toString());
+    exit(1);
+  } catch (e, s) {
+    log.severe(kDoubleSeparator);
+    log.severe('Cargokit BuildTool failed with error:');
+    log.severe(kSeparator);
+    log.severe(e);
+    // This tells user to install Rust, there's no need to pollute the log with
+    // stack trace.
+    if (e is! RustupNotFoundException) {
+      log.severe(kSeparator);
+      log.severe(s);
+      log.severe(kSeparator);
+      log.severe('BuildTool arguments: $args');
+    }
+    log.severe(kDoubleSeparator);
+    exit(1);
+  }
+}

rust_builder/cargokit/build_tool/lib/src/builder.dart

@@ -0,0 +1,198 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'package:collection/collection.dart';
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as path;
+
+import 'android_environment.dart';
+import 'cargo.dart';
+import 'environment.dart';
+import 'options.dart';
+import 'rustup.dart';
+import 'target.dart';
+import 'util.dart';
+
+final _log = Logger('builder');
+
+enum BuildConfiguration {
+  debug,
+  release,
+  profile,
+}
+
+extension on BuildConfiguration {
+  bool get isDebug => this == BuildConfiguration.debug;
+  String get rustName => switch (this) {
+        BuildConfiguration.debug => 'debug',
+        BuildConfiguration.release => 'release',
+        BuildConfiguration.profile => 'release',
+      };
+}
+
+class BuildException implements Exception {
+  final String message;
+
+  BuildException(this.message);
+
+  @override
+  String toString() {
+    return 'BuildException: $message';
+  }
+}
+
+class BuildEnvironment {
+  final BuildConfiguration configuration;
+  final CargokitCrateOptions crateOptions;
+  final String targetTempDir;
+  final String manifestDir;
+  final CrateInfo crateInfo;
+
+  final bool isAndroid;
+  final String? androidSdkPath;
+  final String? androidNdkVersion;
+  final int? androidMinSdkVersion;
+  final String? javaHome;
+
+  BuildEnvironment({
+    required this.configuration,
+    required this.crateOptions,
+    required this.targetTempDir,
+    required this.manifestDir,
+    required this.crateInfo,
+    required this.isAndroid,
+    this.androidSdkPath,
+    this.androidNdkVersion,
+    this.androidMinSdkVersion,
+    this.javaHome,
+  });
+
+  static BuildConfiguration parseBuildConfiguration(String value) {
+    // XCode configuration adds the flavor to configuration name.
+    final firstSegment = value.split('-').first;
+    final buildConfiguration = BuildConfiguration.values.firstWhereOrNull(
+      (e) => e.name == firstSegment,
+    );
+    if (buildConfiguration == null) {
+      _log.warning('Unknown build configuraiton $value, will assume release');
+      return BuildConfiguration.release;
+    }
+    return buildConfiguration;
+  }
+
+  static BuildEnvironment fromEnvironment({
+    required bool isAndroid,
+  }) {
+    final buildConfiguration =
+        parseBuildConfiguration(Environment.configuration);
+    final manifestDir = Environment.manifestDir;
+    final crateOptions = CargokitCrateOptions.load(
+      manifestDir: manifestDir,
+    );
+    final crateInfo = CrateInfo.load(manifestDir);
+    return BuildEnvironment(
+      configuration: buildConfiguration,
+      crateOptions: crateOptions,
+      targetTempDir: Environment.targetTempDir,
+      manifestDir: manifestDir,
+      crateInfo: crateInfo,
+      isAndroid: isAndroid,
+      androidSdkPath: isAndroid ? Environment.sdkPath : null,
+      androidNdkVersion: isAndroid ? Environment.ndkVersion : null,
+      androidMinSdkVersion:
+          isAndroid ? int.parse(Environment.minSdkVersion) : null,
+      javaHome: isAndroid ? Environment.javaHome : null,
+    );
+  }
+}
+
+class RustBuilder {
+  final Target target;
+  final BuildEnvironment environment;
+
+  RustBuilder({
+    required this.target,
+    required this.environment,
+  });
+
+  void prepare(
+    Rustup rustup,
+  ) {
+    final toolchain = _toolchain;
+    if (rustup.installedTargets(toolchain) == null) {
+      rustup.installToolchain(toolchain);
+    }
+    if (toolchain == 'nightly') {
+      rustup.installRustSrcForNightly();
+    }
+    if (!rustup.installedTargets(toolchain)!.contains(target.rust)) {
+      rustup.installTarget(target.rust, toolchain: toolchain);
+    }
+  }
+
+  CargoBuildOptions? get _buildOptions =>
+      environment.crateOptions.cargo[environment.configuration];
+
+  String get _toolchain => _buildOptions?.toolchain.name ?? 'stable';
+
+  /// Returns the path of directory containing build artifacts.
+  Future<String> build() async {
+    final extraArgs = _buildOptions?.flags ?? [];
+    final manifestPath = path.join(environment.manifestDir, 'Cargo.toml');
+    runCommand(
+      'rustup',
+      [
+        'run',
+        _toolchain,
+        'cargo',
+        'build',
+        ...extraArgs,
+        '--manifest-path',
+        manifestPath,
+        '-p',
+        environment.crateInfo.packageName,
+        if (!environment.configuration.isDebug) '--release',
+        '--target',
+        target.rust,
+        '--target-dir',
+        environment.targetTempDir,
+      ],
+      environment: await _buildEnvironment(),
+    );
+    return path.join(
+      environment.targetTempDir,
+      target.rust,
+      environment.configuration.rustName,
+    );
+  }
+
+  Future<Map<String, String>> _buildEnvironment() async {
+    if (target.android == null) {
+      return {};
+    } else {
+      final sdkPath = environment.androidSdkPath;
+      final ndkVersion = environment.androidNdkVersion;
+      final minSdkVersion = environment.androidMinSdkVersion;
+      if (sdkPath == null) {
+        throw BuildException('androidSdkPath is not set');
+      }
+      if (ndkVersion == null) {
+        throw BuildException('androidNdkVersion is not set');
+      }
+      if (minSdkVersion == null) {
+        throw BuildException('androidMinSdkVersion is not set');
+      }
+      final env = AndroidEnvironment(
+        sdkPath: sdkPath,
+        ndkVersion: ndkVersion,
+        minSdkVersion: minSdkVersion,
+        targetTempDir: environment.targetTempDir,
+        target: target,
+      );
+      if (!env.ndkIsInstalled() && environment.javaHome != null) {
+        env.installNdk(javaHome: environment.javaHome!);
+      }
+      return env.buildEnvironment();
+    }
+  }
+}

rust_builder/cargokit/build_tool/lib/src/cargo.dart

@@ -0,0 +1,48 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:path/path.dart' as path;
+import 'package:toml/toml.dart';
+
+class ManifestException {
+  ManifestException(this.message, {required this.fileName});
+
+  final String? fileName;
+  final String message;
+
+  @override
+  String toString() {
+    if (fileName != null) {
+      return 'Failed to parse package manifest at $fileName: $message';
+    } else {
+      return 'Failed to parse package manifest: $message';
+    }
+  }
+}
+
+class CrateInfo {
+  CrateInfo({required this.packageName});
+
+  final String packageName;
+
+  static CrateInfo parseManifest(String manifest, {final String? fileName}) {
+    final toml = TomlDocument.parse(manifest);
+    final package = toml.toMap()['package'];
+    if (package == null) {
+      throw ManifestException('Missing package section', fileName: fileName);
+    }
+    final name = package['name'];
+    if (name == null) {
+      throw ManifestException('Missing package name', fileName: fileName);
+    }
+    return CrateInfo(packageName: name);
+  }
+
+  static CrateInfo load(String manifestDir) {
+    final manifestFile = File(path.join(manifestDir, 'Cargo.toml'));
+    final manifest = manifestFile.readAsStringSync();
+    return parseManifest(manifest, fileName: manifestFile.path);
+  }
+}

rust_builder/cargokit/build_tool/lib/src/crate_hash.dart

@@ -0,0 +1,124 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:convert';
+import 'dart:io';
+import 'dart:typed_data';
+
+import 'package:collection/collection.dart';
+import 'package:convert/convert.dart';
+import 'package:crypto/crypto.dart';
+import 'package:path/path.dart' as path;
+
+class CrateHash {
+  /// Computes a hash uniquely identifying crate content. This takes into account
+  /// content all all .rs files inside the src directory, as well as Cargo.toml,
+  /// Cargo.lock, build.rs and cargokit.yaml.
+  ///
+  /// If [tempStorage] is provided, computed hash is stored in a file in that directory
+  /// and reused on subsequent calls if the crate content hasn't changed.
+  static String compute(String manifestDir, {String? tempStorage}) {
+    return CrateHash._(
+      manifestDir: manifestDir,
+      tempStorage: tempStorage,
+    )._compute();
+  }
+
+  CrateHash._({
+    required this.manifestDir,
+    required this.tempStorage,
+  });
+
+  String _compute() {
+    final files = getFiles();
+    final tempStorage = this.tempStorage;
+    if (tempStorage != null) {
+      final quickHash = _computeQuickHash(files);
+      final quickHashFolder = Directory(path.join(tempStorage, 'crate_hash'));
+      quickHashFolder.createSync(recursive: true);
+      final quickHashFile = File(path.join(quickHashFolder.path, quickHash));
+      if (quickHashFile.existsSync()) {
+        return quickHashFile.readAsStringSync();
+      }
+      final hash = _computeHash(files);
+      quickHashFile.writeAsStringSync(hash);
+      return hash;
+    } else {
+      return _computeHash(files);
+    }
+  }
+
+  /// Computes a quick hash based on files stat (without reading contents). This
+  /// is used to cache the real hash, which is slower to compute since it involves
+  /// reading every single file.
+  String _computeQuickHash(List<File> files) {
+    final output = AccumulatorSink<Digest>();
+    final input = sha256.startChunkedConversion(output);
+
+    final data = ByteData(8);
+    for (final file in files) {
+      input.add(utf8.encode(file.path));
+      final stat = file.statSync();
+      data.setUint64(0, stat.size);
+      input.add(data.buffer.asUint8List());
+      data.setUint64(0, stat.modified.millisecondsSinceEpoch);
+      input.add(data.buffer.asUint8List());
+    }
+
+    input.close();
+    return base64Url.encode(output.events.single.bytes);
+  }
+
+  String _computeHash(List<File> files) {
+    final output = AccumulatorSink<Digest>();
+    final input = sha256.startChunkedConversion(output);
+
+    void addTextFile(File file) {
+      // text Files are hashed by lines in case we're dealing with github checkout
+      // that auto-converts line endings.
+      final splitter = LineSplitter();
+      if (file.existsSync()) {
+        final data = file.readAsStringSync();
+        final lines = splitter.convert(data);
+        for (final line in lines) {
+          input.add(utf8.encode(line));
+        }
+      }
+    }
+
+    for (final file in files) {
+      addTextFile(file);
+    }
+
+    input.close();
+    final res = output.events.single;
+
+    // Truncate to 128bits.
+    final hash = res.bytes.sublist(0, 16);
+    return hex.encode(hash);
+  }
+
+  List<File> getFiles() {
+    final src = Directory(path.join(manifestDir, 'src'));
+    final files = src
+        .listSync(recursive: true, followLinks: false)
+        .whereType<File>()
+        .toList();
+    files.sortBy((element) => element.path);
+    void addFile(String relative) {
+      final file = File(path.join(manifestDir, relative));
+      if (file.existsSync()) {
+        files.add(file);
+      }
+    }
+
+    addFile('Cargo.toml');
+    addFile('Cargo.lock');
+    addFile('build.rs');
+    addFile('cargokit.yaml');
+    return files;
+  }
+
+  final String manifestDir;
+  final String? tempStorage;
+}

rust_builder/cargokit/build_tool/lib/src/environment.dart

@@ -0,0 +1,68 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+extension on String {
+  String resolveSymlink() => File(this).resolveSymbolicLinksSync();
+}
+
+class Environment {
+  /// Current build configuration (debug or release).
+  static String get configuration =>
+      _getEnv("CARGOKIT_CONFIGURATION").toLowerCase();
+
+  static bool get isDebug => configuration == 'debug';
+  static bool get isRelease => configuration == 'release';
+
+  /// Temporary directory where Rust build artifacts are placed.
+  static String get targetTempDir => _getEnv("CARGOKIT_TARGET_TEMP_DIR");
+
+  /// Final output directory where the build artifacts are placed.
+  static String get outputDir => _getEnvPath('CARGOKIT_OUTPUT_DIR');
+
+  /// Path to the crate manifest (containing Cargo.toml).
+  static String get manifestDir => _getEnvPath('CARGOKIT_MANIFEST_DIR');
+
+  /// Directory inside root project. Not necessarily root folder. Symlinks are
+  /// not resolved on purpose.
+  static String get rootProjectDir => _getEnv('CARGOKIT_ROOT_PROJECT_DIR');
+
+  // Pod
+
+  /// Platform name (macosx, iphoneos, iphonesimulator).
+  static String get darwinPlatformName =>
+      _getEnv("CARGOKIT_DARWIN_PLATFORM_NAME");
+
+  /// List of architectures to build for (arm64, armv7, x86_64).
+  static List<String> get darwinArchs =>
+      _getEnv("CARGOKIT_DARWIN_ARCHS").split(' ');
+
+  // Gradle
+  static String get minSdkVersion => _getEnv("CARGOKIT_MIN_SDK_VERSION");
+  static String get ndkVersion => _getEnv("CARGOKIT_NDK_VERSION");
+  static String get sdkPath => _getEnvPath("CARGOKIT_SDK_DIR");
+  static String get javaHome => _getEnvPath("CARGOKIT_JAVA_HOME");
+  static List<String> get targetPlatforms =>
+      _getEnv("CARGOKIT_TARGET_PLATFORMS").split(',');
+
+  // CMAKE
+  static String get targetPlatform => _getEnv("CARGOKIT_TARGET_PLATFORM");
+
+  static String _getEnv(String key) {
+    final res = Platform.environment[key];
+    if (res == null) {
+      throw Exception("Missing environment variable $key");
+    }
+    return res;
+  }
+
+  static String _getEnvPath(String key) {
+    final res = _getEnv(key);
+    if (Directory(res).existsSync()) {
+      return res.resolveSymlink();
+    } else {
+      return res;
+    }
+  }
+}

rust_builder/cargokit/build_tool/lib/src/logging.dart

@@ -0,0 +1,52 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:logging/logging.dart';
+
+const String kSeparator = "--";
+const String kDoubleSeparator = "==";
+
+bool _lastMessageWasSeparator = false;
+
+void _log(LogRecord rec) {
+  final prefix = '${rec.level.name}: ';
+  final out = rec.level == Level.SEVERE ? stderr : stdout;
+  if (rec.message == kSeparator) {
+    if (!_lastMessageWasSeparator) {
+      out.write(prefix);
+      out.writeln('-' * 80);
+      _lastMessageWasSeparator = true;
+    }
+    return;
+  } else if (rec.message == kDoubleSeparator) {
+    out.write(prefix);
+    out.writeln('=' * 80);
+    _lastMessageWasSeparator = true;
+    return;
+  }
+  out.write(prefix);
+  out.writeln(rec.message);
+  _lastMessageWasSeparator = false;
+}
+
+void initLogging() {
+  Logger.root.level = Level.INFO;
+  Logger.root.onRecord.listen((LogRecord rec) {
+    final lines = rec.message.split('\n');
+    for (final line in lines) {
+      if (line.isNotEmpty || lines.length == 1 || line != lines.last) {
+        _log(LogRecord(
+          rec.level,
+          line,
+          rec.loggerName,
+        ));
+      }
+    }
+  });
+}
+
+void enableVerboseLogging() {
+  Logger.root.level = Level.ALL;
+}

rust_builder/cargokit/build_tool/lib/src/options.dart

@@ -0,0 +1,309 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:collection/collection.dart';
+import 'package:ed25519_edwards/ed25519_edwards.dart';
+import 'package:hex/hex.dart';
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as path;
+import 'package:source_span/source_span.dart';
+import 'package:yaml/yaml.dart';
+
+import 'builder.dart';
+import 'environment.dart';
+import 'rustup.dart';
+
+final _log = Logger('options');
+
+/// A class for exceptions that have source span information attached.
+class SourceSpanException implements Exception {
+  // This is a getter so that subclasses can override it.
+  /// A message describing the exception.
+  String get message => _message;
+  final String _message;
+
+  // This is a getter so that subclasses can override it.
+  /// The span associated with this exception.
+  ///
+  /// This may be `null` if the source location can't be determined.
+  SourceSpan? get span => _span;
+  final SourceSpan? _span;
+
+  SourceSpanException(this._message, this._span);
+
+  /// Returns a string representation of `this`.
+  ///
+  /// [color] may either be a [String], a [bool], or `null`. If it's a string,
+  /// it indicates an ANSI terminal color escape that should be used to
+  /// highlight the span's text. If it's `true`, it indicates that the text
+  /// should be highlighted using the default color. If it's `false` or `null`,
+  /// it indicates that the text shouldn't be highlighted.
+  @override
+  String toString({Object? color}) {
+    if (span == null) return message;
+    return 'Error on ${span!.message(message, color: color)}';
+  }
+}
+
+enum Toolchain {
+  stable,
+  beta,
+  nightly,
+}
+
+class CargoBuildOptions {
+  final Toolchain toolchain;
+  final List<String> flags;
+
+  CargoBuildOptions({
+    required this.toolchain,
+    required this.flags,
+  });
+
+  static Toolchain _toolchainFromNode(YamlNode node) {
+    if (node case YamlScalar(value: String name)) {
+      final toolchain =
+          Toolchain.values.firstWhereOrNull((element) => element.name == name);
+      if (toolchain != null) {
+        return toolchain;
+      }
+    }
+    throw SourceSpanException(
+        'Unknown toolchain. Must be one of ${Toolchain.values.map((e) => e.name)}.',
+        node.span);
+  }
+
+  static CargoBuildOptions parse(YamlNode node) {
+    if (node is! YamlMap) {
+      throw SourceSpanException('Cargo options must be a map', node.span);
+    }
+    Toolchain toolchain = Toolchain.stable;
+    List<String> flags = [];
+    for (final MapEntry(:key, :value) in node.nodes.entries) {
+      if (key case YamlScalar(value: 'toolchain')) {
+        toolchain = _toolchainFromNode(value);
+      } else if (key case YamlScalar(value: 'extra_flags')) {
+        if (value case YamlList(nodes: List<YamlNode> list)) {
+          if (list.every((element) {
+            if (element case YamlScalar(value: String _)) {
+              return true;
+            }
+            return false;
+          })) {
+            flags = list.map((e) => e.value as String).toList();
+            continue;
+          }
+        }
+        throw SourceSpanException(
+            'Extra flags must be a list of strings', value.span);
+      } else {
+        throw SourceSpanException(
+            'Unknown cargo option type. Must be "toolchain" or "extra_flags".',
+            key.span);
+      }
+    }
+    return CargoBuildOptions(toolchain: toolchain, flags: flags);
+  }
+}
+
+extension on YamlMap {
+  /// Map that extracts keys so that we can do map case check on them.
+  Map<dynamic, YamlNode> get valueMap =>
+      nodes.map((key, value) => MapEntry(key.value, value));
+}
+
+class PrecompiledBinaries {
+  final String uriPrefix;
+  final PublicKey publicKey;
+
+  PrecompiledBinaries({
+    required this.uriPrefix,
+    required this.publicKey,
+  });
+
+  static PublicKey _publicKeyFromHex(String key, SourceSpan? span) {
+    final bytes = HEX.decode(key);
+    if (bytes.length != 32) {
+      throw SourceSpanException(
+          'Invalid public key. Must be 32 bytes long.', span);
+    }
+    return PublicKey(bytes);
+  }
+
+  static PrecompiledBinaries parse(YamlNode node) {
+    if (node case YamlMap(valueMap: Map<dynamic, YamlNode> map)) {
+      if (map
+          case {
+            'url_prefix': YamlNode urlPrefixNode,
+            'public_key': YamlNode publicKeyNode,
+          }) {
+        final urlPrefix = switch (urlPrefixNode) {
+          YamlScalar(value: String urlPrefix) => urlPrefix,
+          _ => throw SourceSpanException(
+              'Invalid URL prefix value.', urlPrefixNode.span),
+        };
+        final publicKey = switch (publicKeyNode) {
+          YamlScalar(value: String publicKey) =>
+            _publicKeyFromHex(publicKey, publicKeyNode.span),
+          _ => throw SourceSpanException(
+              'Invalid public key value.', publicKeyNode.span),
+        };
+        return PrecompiledBinaries(
+          uriPrefix: urlPrefix,
+          publicKey: publicKey,
+        );
+      }
+    }
+    throw SourceSpanException(
+        'Invalid precompiled binaries value. '
+        'Expected Map with "url_prefix" and "public_key".',
+        node.span);
+  }
+}
+
+/// Cargokit options specified for Rust crate.
+class CargokitCrateOptions {
+  CargokitCrateOptions({
+    this.cargo = const {},
+    this.precompiledBinaries,
+  });
+
+  final Map<BuildConfiguration, CargoBuildOptions> cargo;
+  final PrecompiledBinaries? precompiledBinaries;
+
+  static CargokitCrateOptions parse(YamlNode node) {
+    if (node is! YamlMap) {
+      throw SourceSpanException('Cargokit options must be a map', node.span);
+    }
+    final options = <BuildConfiguration, CargoBuildOptions>{};
+    PrecompiledBinaries? precompiledBinaries;
+
+    for (final entry in node.nodes.entries) {
+      if (entry
+          case MapEntry(
+            key: YamlScalar(value: 'cargo'),
+            value: YamlNode node,
+          )) {
+        if (node is! YamlMap) {
+          throw SourceSpanException('Cargo options must be a map', node.span);
+        }
+        for (final MapEntry(:YamlNode key, :value) in node.nodes.entries) {
+          if (key case YamlScalar(value: String name)) {
+            final configuration = BuildConfiguration.values
+                .firstWhereOrNull((element) => element.name == name);
+            if (configuration != null) {
+              options[configuration] = CargoBuildOptions.parse(value);
+              continue;
+            }
+          }
+          throw SourceSpanException(
+              'Unknown build configuration. Must be one of ${BuildConfiguration.values.map((e) => e.name)}.',
+              key.span);
+        }
+      } else if (entry.key case YamlScalar(value: 'precompiled_binaries')) {
+        precompiledBinaries = PrecompiledBinaries.parse(entry.value);
+      } else {
+        throw SourceSpanException(
+            'Unknown cargokit option type. Must be "cargo" or "precompiled_binaries".',
+            entry.key.span);
+      }
+    }
+    return CargokitCrateOptions(
+      cargo: options,
+      precompiledBinaries: precompiledBinaries,
+    );
+  }
+
+  static CargokitCrateOptions load({
+    required String manifestDir,
+  }) {
+    final uri = Uri.file(path.join(manifestDir, "cargokit.yaml"));
+    final file = File.fromUri(uri);
+    if (file.existsSync()) {
+      final contents = loadYamlNode(file.readAsStringSync(), sourceUrl: uri);
+      return parse(contents);
+    } else {
+      return CargokitCrateOptions();
+    }
+  }
+}
+
+class CargokitUserOptions {
+  // When Rustup is installed always build locally unless user opts into
+  // using precompiled binaries.
+  static bool defaultUsePrecompiledBinaries() {
+    return Rustup.executablePath() == null;
+  }
+
+  CargokitUserOptions({
+    required this.usePrecompiledBinaries,
+    required this.verboseLogging,
+  });
+
+  CargokitUserOptions._()
+      : usePrecompiledBinaries = defaultUsePrecompiledBinaries(),
+        verboseLogging = false;
+
+  static CargokitUserOptions parse(YamlNode node) {
+    if (node is! YamlMap) {
+      throw SourceSpanException('Cargokit options must be a map', node.span);
+    }
+    bool usePrecompiledBinaries = defaultUsePrecompiledBinaries();
+    bool verboseLogging = false;
+
+    for (final entry in node.nodes.entries) {
+      if (entry.key case YamlScalar(value: 'use_precompiled_binaries')) {
+        if (entry.value case YamlScalar(value: bool value)) {
+          usePrecompiledBinaries = value;
+          continue;
+        }
+        throw SourceSpanException(
+            'Invalid value for "use_precompiled_binaries". Must be a boolean.',
+            entry.value.span);
+      } else if (entry.key case YamlScalar(value: 'verbose_logging')) {
+        if (entry.value case YamlScalar(value: bool value)) {
+          verboseLogging = value;
+          continue;
+        }
+        throw SourceSpanException(
+            'Invalid value for "verbose_logging". Must be a boolean.',
+            entry.value.span);
+      } else {
+        throw SourceSpanException(
+            'Unknown cargokit option type. Must be "use_precompiled_binaries" or "verbose_logging".',
+            entry.key.span);
+      }
+    }
+    return CargokitUserOptions(
+      usePrecompiledBinaries: usePrecompiledBinaries,
+      verboseLogging: verboseLogging,
+    );
+  }
+
+  static CargokitUserOptions load() {
+    String fileName = "cargokit_options.yaml";
+    var userProjectDir = Directory(Environment.rootProjectDir);
+
+    while (userProjectDir.parent.path != userProjectDir.path) {
+      final configFile = File(path.join(userProjectDir.path, fileName));
+      if (configFile.existsSync()) {
+        final contents = loadYamlNode(
+          configFile.readAsStringSync(),
+          sourceUrl: configFile.uri,
+        );
+        final res = parse(contents);
+        if (res.verboseLogging) {
+          _log.info('Found user options file at ${configFile.path}');
+        }
+        return res;
+      }
+      userProjectDir = userProjectDir.parent;
+    }
+    return CargokitUserOptions._();
+  }
+
+  final bool usePrecompiledBinaries;
+  final bool verboseLogging;
+}

rust_builder/cargokit/build_tool/lib/src/precompile_binaries.dart

@@ -0,0 +1,202 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:ed25519_edwards/ed25519_edwards.dart';
+import 'package:github/github.dart';
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as path;
+
+import 'artifacts_provider.dart';
+import 'builder.dart';
+import 'cargo.dart';
+import 'crate_hash.dart';
+import 'options.dart';
+import 'rustup.dart';
+import 'target.dart';
+
+final _log = Logger('precompile_binaries');
+
+class PrecompileBinaries {
+  PrecompileBinaries({
+    required this.privateKey,
+    required this.githubToken,
+    required this.repositorySlug,
+    required this.manifestDir,
+    required this.targets,
+    this.androidSdkLocation,
+    this.androidNdkVersion,
+    this.androidMinSdkVersion,
+    this.tempDir,
+  });
+
+  final PrivateKey privateKey;
+  final String githubToken;
+  final RepositorySlug repositorySlug;
+  final String manifestDir;
+  final List<Target> targets;
+  final String? androidSdkLocation;
+  final String? androidNdkVersion;
+  final int? androidMinSdkVersion;
+  final String? tempDir;
+
+  static String fileName(Target target, String name) {
+    return '${target.rust}_$name';
+  }
+
+  static String signatureFileName(Target target, String name) {
+    return '${target.rust}_$name.sig';
+  }
+
+  Future<void> run() async {
+    final crateInfo = CrateInfo.load(manifestDir);
+
+    final targets = List.of(this.targets);
+    if (targets.isEmpty) {
+      targets.addAll([
+        ...Target.buildableTargets(),
+        if (androidSdkLocation != null) ...Target.androidTargets(),
+      ]);
+    }
+
+    _log.info('Precompiling binaries for $targets');
+
+    final hash = CrateHash.compute(manifestDir);
+    _log.info('Computed crate hash: $hash');
+
+    final String tagName = 'precompiled_$hash';
+
+    final github = GitHub(auth: Authentication.withToken(githubToken));
+    final repo = github.repositories;
+    final release = await _getOrCreateRelease(
+      repo: repo,
+      tagName: tagName,
+      packageName: crateInfo.packageName,
+      hash: hash,
+    );
+
+    final tempDir = this.tempDir != null
+        ? Directory(this.tempDir!)
+        : Directory.systemTemp.createTempSync('precompiled_');
+
+    tempDir.createSync(recursive: true);
+
+    final crateOptions = CargokitCrateOptions.load(
+      manifestDir: manifestDir,
+    );
+
+    final buildEnvironment = BuildEnvironment(
+      configuration: BuildConfiguration.release,
+      crateOptions: crateOptions,
+      targetTempDir: tempDir.path,
+      manifestDir: manifestDir,
+      crateInfo: crateInfo,
+      isAndroid: androidSdkLocation != null,
+      androidSdkPath: androidSdkLocation,
+      androidNdkVersion: androidNdkVersion,
+      androidMinSdkVersion: androidMinSdkVersion,
+    );
+
+    final rustup = Rustup();
+
+    for (final target in targets) {
+      final artifactNames = getArtifactNames(
+        target: target,
+        libraryName: crateInfo.packageName,
+        remote: true,
+      );
+
+      if (artifactNames.every((name) {
+        final fileName = PrecompileBinaries.fileName(target, name);
+        return (release.assets ?? []).any((e) => e.name == fileName);
+      })) {
+        _log.info("All artifacts for $target already exist - skipping");
+        continue;
+      }
+
+      _log.info('Building for $target');
+
+      final builder =
+          RustBuilder(target: target, environment: buildEnvironment);
+      builder.prepare(rustup);
+      final res = await builder.build();
+
+      final assets = <CreateReleaseAsset>[];
+      for (final name in artifactNames) {
+        final file = File(path.join(res, name));
+        if (!file.existsSync()) {
+          throw Exception('Missing artifact: ${file.path}');
+        }
+
+        final data = file.readAsBytesSync();
+        final create = CreateReleaseAsset(
+          name: PrecompileBinaries.fileName(target, name),
+          contentType: "application/octet-stream",
+          assetData: data,
+        );
+        final signature = sign(privateKey, data);
+        final signatureCreate = CreateReleaseAsset(
+          name: signatureFileName(target, name),
+          contentType: "application/octet-stream",
+          assetData: signature,
+        );
+        bool verified = verify(public(privateKey), data, signature);
+        if (!verified) {
+          throw Exception('Signature verification failed');
+        }
+        assets.add(create);
+        assets.add(signatureCreate);
+      }
+      _log.info('Uploading assets: ${assets.map((e) => e.name)}');
+      for (final asset in assets) {
+        // This seems to be failing on CI so do it one by one
+        int retryCount = 0;
+        while (true) {
+          try {
+            await repo.uploadReleaseAssets(release, [asset]);
+            break;
+          } on Exception catch (e) {
+            if (retryCount == 10) {
+              rethrow;
+            }
+            ++retryCount;
+            _log.shout(
+                'Upload failed (attempt $retryCount, will retry): ${e.toString()}');
+            await Future.delayed(Duration(seconds: 2));
+          }
+        }
+      }
+    }
+
+    _log.info('Cleaning up');
+    tempDir.deleteSync(recursive: true);
+  }
+
+  Future<Release> _getOrCreateRelease({
+    required RepositoriesService repo,
+    required String tagName,
+    required String packageName,
+    required String hash,
+  }) async {
+    Release release;
+    try {
+      _log.info('Fetching release $tagName');
+      release = await repo.getReleaseByTagName(repositorySlug, tagName);
+    } on ReleaseNotFound {
+      _log.info('Release not found - creating release $tagName');
+      release = await repo.createRelease(
+          repositorySlug,
+          CreateRelease.from(
+            tagName: tagName,
+            name: 'Precompiled binaries ${hash.substring(0, 8)}',
+            targetCommitish: null,
+            isDraft: false,
+            isPrerelease: false,
+            body: 'Precompiled binaries for crate $packageName, '
+                'crate hash $hash.',
+          ));
+    }
+    return release;
+  }
+}

rust_builder/cargokit/build_tool/lib/src/rustup.dart

@@ -0,0 +1,136 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:collection/collection.dart';
+import 'package:path/path.dart' as path;
+
+import 'util.dart';
+
+class _Toolchain {
+  _Toolchain(
+    this.name,
+    this.targets,
+  );
+
+  final String name;
+  final List<String> targets;
+}
+
+class Rustup {
+  List<String>? installedTargets(String toolchain) {
+    final targets = _installedTargets(toolchain);
+    return targets != null ? List.unmodifiable(targets) : null;
+  }
+
+  void installToolchain(String toolchain) {
+    log.info("Installing Rust toolchain: $toolchain");
+    runCommand("rustup", ['toolchain', 'install', toolchain]);
+    _installedToolchains
+        .add(_Toolchain(toolchain, _getInstalledTargets(toolchain)));
+  }
+
+  void installTarget(
+    String target, {
+    required String toolchain,
+  }) {
+    log.info("Installing Rust target: $target");
+    runCommand("rustup", [
+      'target',
+      'add',
+      '--toolchain',
+      toolchain,
+      target,
+    ]);
+    _installedTargets(toolchain)?.add(target);
+  }
+
+  final List<_Toolchain> _installedToolchains;
+
+  Rustup() : _installedToolchains = _getInstalledToolchains();
+
+  List<String>? _installedTargets(String toolchain) => _installedToolchains
+      .firstWhereOrNull(
+          (e) => e.name == toolchain || e.name.startsWith('$toolchain-'))
+      ?.targets;
+
+  static List<_Toolchain> _getInstalledToolchains() {
+    String extractToolchainName(String line) {
+      // ignore (default) after toolchain name
+      final parts = line.split(' ');
+      return parts[0];
+    }
+
+    final res = runCommand("rustup", ['toolchain', 'list']);
+
+    // To list all non-custom toolchains, we need to filter out lines that
+    // don't start with "stable", "beta", or "nightly".
+    Pattern nonCustom = RegExp(r"^(stable|beta|nightly)");
+    final lines = res.stdout
+        .toString()
+        .split('\n')
+        .where((e) => e.isNotEmpty && e.startsWith(nonCustom))
+        .map(extractToolchainName)
+        .toList(growable: true);
+
+    return lines
+        .map(
+          (name) => _Toolchain(
+            name,
+            _getInstalledTargets(name),
+          ),
+        )
+        .toList(growable: true);
+  }
+
+  static List<String> _getInstalledTargets(String toolchain) {
+    final res = runCommand("rustup", [
+      'target',
+      'list',
+      '--toolchain',
+      toolchain,
+      '--installed',
+    ]);
+    final lines = res.stdout
+        .toString()
+        .split('\n')
+        .where((e) => e.isNotEmpty)
+        .toList(growable: true);
+    return lines;
+  }
+
+  bool _didInstallRustSrcForNightly = false;
+
+  void installRustSrcForNightly() {
+    if (_didInstallRustSrcForNightly) {
+      return;
+    }
+    // Useful for -Z build-std
+    runCommand(
+      "rustup",
+      ['component', 'add', 'rust-src', '--toolchain', 'nightly'],
+    );
+    _didInstallRustSrcForNightly = true;
+  }
+
+  static String? executablePath() {
+    final envPath = Platform.environment['PATH'];
+    final envPathSeparator = Platform.isWindows ? ';' : ':';
+    final home = Platform.isWindows
+        ? Platform.environment['USERPROFILE']
+        : Platform.environment['HOME'];
+    final paths = [
+      if (home != null) path.join(home, '.cargo', 'bin'),
+      if (envPath != null) ...envPath.split(envPathSeparator),
+    ];
+    for (final p in paths) {
+      final rustup = Platform.isWindows ? 'rustup.exe' : 'rustup';
+      final rustupPath = path.join(p, rustup);
+      if (File(rustupPath).existsSync()) {
+        return rustupPath;
+      }
+    }
+    return null;
+  }
+}

rust_builder/cargokit/build_tool/lib/src/target.dart

@@ -0,0 +1,140 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:collection/collection.dart';
+
+import 'util.dart';
+
+class Target {
+  Target({
+    required this.rust,
+    this.flutter,
+    this.android,
+    this.androidMinSdkVersion,
+    this.darwinPlatform,
+    this.darwinArch,
+  });
+
+  static final all = [
+    Target(
+      rust: 'armv7-linux-androideabi',
+      flutter: 'android-arm',
+      android: 'armeabi-v7a',
+      androidMinSdkVersion: 16,
+    ),
+    Target(
+      rust: 'aarch64-linux-android',
+      flutter: 'android-arm64',
+      android: 'arm64-v8a',
+      androidMinSdkVersion: 21,
+    ),
+    Target(
+      rust: 'i686-linux-android',
+      flutter: 'android-x86',
+      android: 'x86',
+      androidMinSdkVersion: 16,
+    ),
+    Target(
+      rust: 'x86_64-linux-android',
+      flutter: 'android-x64',
+      android: 'x86_64',
+      androidMinSdkVersion: 21,
+    ),
+    Target(
+      rust: 'x86_64-pc-windows-msvc',
+      flutter: 'windows-x64',
+    ),
+    Target(
+      rust: 'x86_64-unknown-linux-gnu',
+      flutter: 'linux-x64',
+    ),
+    Target(
+      rust: 'aarch64-unknown-linux-gnu',
+      flutter: 'linux-arm64',
+    ),
+    Target(
+      rust: 'x86_64-apple-darwin',
+      darwinPlatform: 'macosx',
+      darwinArch: 'x86_64',
+    ),
+    Target(
+      rust: 'aarch64-apple-darwin',
+      darwinPlatform: 'macosx',
+      darwinArch: 'arm64',
+    ),
+    Target(
+      rust: 'aarch64-apple-ios',
+      darwinPlatform: 'iphoneos',
+      darwinArch: 'arm64',
+    ),
+    Target(
+      rust: 'aarch64-apple-ios-sim',
+      darwinPlatform: 'iphonesimulator',
+      darwinArch: 'arm64',
+    ),
+    Target(
+      rust: 'x86_64-apple-ios',
+      darwinPlatform: 'iphonesimulator',
+      darwinArch: 'x86_64',
+    ),
+  ];
+
+  static Target? forFlutterName(String flutterName) {
+    return all.firstWhereOrNull((element) => element.flutter == flutterName);
+  }
+
+  static Target? forDarwin({
+    required String platformName,
+    required String darwinAarch,
+  }) {
+    return all.firstWhereOrNull((element) => //
+        element.darwinPlatform == platformName &&
+        element.darwinArch == darwinAarch);
+  }
+
+  static Target? forRustTriple(String triple) {
+    return all.firstWhereOrNull((element) => element.rust == triple);
+  }
+
+  static List<Target> androidTargets() {
+    return all
+        .where((element) => element.android != null)
+        .toList(growable: false);
+  }
+
+  /// Returns buildable targets on current host platform ignoring Android targets.
+  static List<Target> buildableTargets() {
+    if (Platform.isLinux) {
+      // Right now we don't support cross-compiling on Linux. So we just return
+      // the host target.
+      final arch = runCommand('arch', []).stdout as String;
+      if (arch.trim() == 'aarch64') {
+        return [Target.forRustTriple('aarch64-unknown-linux-gnu')!];
+      } else {
+        return [Target.forRustTriple('x86_64-unknown-linux-gnu')!];
+      }
+    }
+    return all.where((target) {
+      if (Platform.isWindows) {
+        return target.rust.contains('-windows-');
+      } else if (Platform.isMacOS) {
+        return target.darwinPlatform != null;
+      }
+      return false;
+    }).toList(growable: false);
+  }
+
+  @override
+  String toString() {
+    return rust;
+  }
+
+  final String? flutter;
+  final String rust;
+  final String? android;
+  final int? androidMinSdkVersion;
+  final String? darwinPlatform;
+  final String? darwinArch;
+}