389 lines
16 KiB
Dart
389 lines
16 KiB
Dart
import 'package:bloc/bloc.dart';
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import 'package:dio_cache_interceptor_hive_store/dio_cache_interceptor_hive_store.dart';
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import 'package:fast_immutable_collections/fast_immutable_collections.dart';
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/widgets.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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import 'package:flutter_map/flutter_map.dart';
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import 'package:flutter_map_cache/flutter_map_cache.dart';
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import 'package:flutter_map_compass/flutter_map_compass.dart';
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import 'package:flutter_map_math/flutter_geo_math.dart';
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import 'package:get_it/get_it.dart';
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import 'package:intl/intl.dart';
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import 'package:latlong2/latlong.dart';
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import 'package:ot_viewer_app/global_location_store.dart';
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import 'package:ot_viewer_app/settings_page.dart';
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import 'package:ot_viewer_app/user_path_bloc.dart';
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import 'package:ot_viewer_app/util.dart';
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import 'package:ot_viewer_app/web_socket_cubit.dart';
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import 'package:path_provider/path_provider.dart';
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import 'owntracks_api.dart';
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import 'dart:math' as math;
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Future<String> getPath() async {
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final cacheDirectory = await getTemporaryDirectory();
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return cacheDirectory.path;
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}
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class MapPage extends StatefulWidget {
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const MapPage({super.key});
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@override
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createState() => _MapPageState();
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}
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class _MapPageState extends State<MapPage> {
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@override
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void initState() {
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super.initState();
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// _fetchPoints();
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}
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@override
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Widget build(BuildContext context) {
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return BlocProvider(
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create: (context) {
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final cubit = LocationSubscribeCubit();
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final settingsCubit = context.read<SettingsCubit>();
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cubit.subscribe(settingsCubit.state);
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settingsCubit.stream.listen((settings) => cubit.subscribe(settings));
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return cubit;
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},
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child: FutureBuilder<String>(
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future: getPath(),
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builder: (something, tempPath) => BlocBuilder<SettingsCubit, SettingsState>(
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builder: (context, state) {
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if (tempPath.data == null) {
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return const Center(child: Text('Loading Map...'));
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}
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return FlutterMap(
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options: const MapOptions(
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initialCenter: LatLng(48.3285, 9.8942),
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initialZoom: 13.0,
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),
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children: [
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TileLayer(
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urlTemplate: 'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
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tileProvider: CachedTileProvider(
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maxStale: const Duration(days: 30),
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store: HiveCacheStore(tempPath.data!, hiveBoxName: 'HiveCacheStore')),
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),
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...state.activeDevices.map((id) => UserPath(key: ValueKey(id), device: id, settings: state)),
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const MapCompass.cupertino(rotationDuration: Duration(milliseconds: 600)),
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// CurrentLocationLayer(), TODO: add permission
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RichAttributionWidget(
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attributions: [
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TextSourceAttribution(
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'OpenStreetMap contributors',
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onTap: () => (Uri.parse('https://openstreetmap.org/copyright')),
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),
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],
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),
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],
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);
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},
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),
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),
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);
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}
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}
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class UserPath extends StatefulWidget {
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UserPath({super.key, required this.device, required this.settings});
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(String, String) device;
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SettingsState settings;
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@override
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createState() => _UserPathState();
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}
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class _UserPathState extends State<UserPath> {
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@override
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Widget build(BuildContext ctx) {
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print('rebuilding widget for ${widget.device}');
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return BlocProvider(
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create: (context) {
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final bloc = UserPathBloc(widget.device, widget.settings);
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bloc.add(UserPathFullUpdate());
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// ONLY WORKS because gets rebuilt every time with settings update
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return bloc;
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},
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child: BlocListener<LocationSubscribeCubit, LocationUpdateState>(
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listenWhen: (prevState, state) => state is LocationUpdateReceived,
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listener: (context, state) {
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UserPathBloc userPathBloc = context.read<UserPathBloc>();
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if (state case LocationUpdateReceived(:final position, :final deviceId)) {
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if (userPathBloc.deviceId == state.deviceId) {
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userPathBloc.add(UserPathLiveSubscriptionUpdate(position));
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}
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}
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},
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child: BlocBuilder<UserPathBloc, UserPathState>(
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builder: (context, state) {
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// TODO: change once smarter rebuilds are ready
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context.read<UserPathBloc>().add(UserPathLoginDataChanged(widget.settings));
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print("rebuild");
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final _istate = state as MainUserPathState;
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// make markers
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final List<Marker> markers = [];
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if (state.livePoints.isNotEmpty) {
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markers.add(Marker(
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width: 500,
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height: 100,
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point: state.livePoints.last.asLatLng,
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child: Column(
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mainAxisAlignment: MainAxisAlignment.end,
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children: [
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GestureDetector(
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onTap: () => showUserLocationModalBottomSheet(context, widget.device),
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child: Container(
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decoration: BoxDecoration(
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color: Colors.black.withOpacity(0.85),
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// border: Border.all(color: Colors.lightBlue, width: 2), TODO: add border
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borderRadius: BorderRadius.circular(10),
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boxShadow: const [
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// BoxShadow(color: Colors.black, blurRadius: 4)
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]),
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padding: const EdgeInsets.all(8),
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child: Text(
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"${widget.device.$1}:${widget.device.$2}",
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softWrap: false,
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),
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),
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),
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const Icon(
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Icons.location_history,
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size: 32,
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)
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],
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),
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alignment: Alignment.topCenter,
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rotate: true,
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));
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}
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// Create fancy fade-out and blended line (TODO: make distance based. use flutter_map_math)
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List<List<LatLng>> segments = [];
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List<Color> colors = [];
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if (state.initialPoints.isNotEmpty) {
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final allPoints = state.initialPoints.map((e) => LatLng(e.lat, e.lon)).toList();
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final segmentCount = math.min(100, allPoints.length);
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final pointsPerSegment = (allPoints.length / segmentCount).ceil();
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// Split the points into segments and generate colors
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for (int i = 0; i < allPoints.length; i += pointsPerSegment) {
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int end = math.min(i + pointsPerSegment + 1, allPoints.length);
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segments.add(allPoints.sublist(i, end));
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// Calculate the color for the segment
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double ratio = i / allPoints.length;
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Color color = Color.lerp(Colors.purple, Colors.blue, ratio)!;
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colors.add(color);
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}
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}
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// Create polylines for each segment with the corresponding color
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List<Polyline> polylines = [];
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for (int i = 0; i < segments.length; i++) {
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polylines.add(
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Polyline(
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points: segments[i],
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strokeWidth: 4.0,
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color: colors[i]
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.withOpacity((math.pow(i, 2) / math.pow(segments.length, 2)) * 0.7 + 0.3), // Fading effect
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),
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);
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}
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return Stack(
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children: [
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PolylineLayer(
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key: ValueKey('${widget.device}_historyLines'),
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polylines: [
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/*
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Polyline(
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points: state.initialPoints
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.map((e) => LatLng(e.lat, e.lon))
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.toList(),
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strokeWidth: 4.0,
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color: Colors.blue,
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),
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*/
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...polylines
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],
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),
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PolylineLayer(key: ValueKey('${widget.device}_liveLines'), polylines: [
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Polyline(
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points: state.livePoints.map((e) => LatLng(e.lat, e.lon)).toList(),
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strokeWidth: 4.0,
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color: Colors.blue.shade200,
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),
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]),
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MarkerLayer(markers: markers)
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],
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);
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},
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),
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),
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);
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}
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}
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showUserLocationModalBottomSheet(BuildContext context, (String, String) user) {
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showModalBottomSheet(
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context: context,
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builder: (bsContext) {
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return Container(
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// height: MediaQuery.of(bsContext).size.height * 0.5,
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width: MediaQuery.of(bsContext).size.width,
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height: 500,
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decoration: const BoxDecoration(
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color: Colors.black,
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borderRadius: BorderRadius.only(topLeft: Radius.circular(30), topRight: Radius.circular(30)),
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),
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padding: const EdgeInsets.all(32),
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child: StreamBuilder<UserPathState>(
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stream: context.read<UserPathBloc>().stream,
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builder: (sheetContext, state) {
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final istate = state.data as MainUserPathState? ?? context.read<UserPathBloc>().state as MainUserPathState;
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if (istate.livePoints.isEmpty) {
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return Text("Couldn't find ${user.$1}:${user.$2}'s Location");
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}
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final curLocation = istate.livePoints.last;
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return Column(
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// mainAxisSize: MainAxisSize.min,
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children: [
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Text(
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'${user.$1}:${user.$2}',
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style: const TextStyle(
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fontSize: 24,
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fontWeight: FontWeight.bold,
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),
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),
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Container(
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decoration: BoxDecoration(
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color: Colors.black,
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border: Border.all(color: Colors.orange, width: 2),
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borderRadius: BorderRadius.circular(10),
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),
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padding: const EdgeInsets.all(16),
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width: double.infinity,
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child: Column(
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children: [
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Text("(${curLocation.lat.toStringAsFixed(4)}, ${curLocation.lon.toStringAsFixed(4)})"),
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Text(DateFormat('dd.MM.yyyy - kk:mm:ss').format(curLocation.timestamp)),
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StreamBuilder(
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stream: Stream.periodic(const Duration(seconds: 1)),
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builder: (context, _) {
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return Text("${formatDuration(DateTime.now().difference(curLocation.timestamp))} ago");
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},
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),
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],
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),
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),
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const SizedBox(
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height: 16,
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),
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Expanded(
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// Ensure GridView.builder is within an Expanded widget
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child: BlocBuilder<GlobalLocationStoreCubit, GlobalLocationStoreState>(
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bloc: GetIt.I.get<GlobalLocationStoreCubit>(),
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builder: (sheetContext, state) {
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// get map camera
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final mapController = MapController.of(context);
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final mapRotation = mapController.camera.rotation;
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List<MapEntry<(String, String), Point>> locations = state.locations
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.remove(user) // remove this
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.entries // get entries into a list, and sort alphabetically
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.toList()
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..sort((a, b) => "${a.key.$1}:${a.key.$2}".compareTo("${b.key.$1}:${b.key.$2}"));
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if (locations.isEmpty) {
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return const SizedBox();
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}
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return GridView.builder(
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gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
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crossAxisCount: 1, crossAxisSpacing: 4.0, mainAxisSpacing: 4.0, mainAxisExtent: 100),
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itemCount: locations.length,
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itemBuilder: (BuildContext context, int index) {
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// calculate distance and bearing
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double distance = distanceBetween(curLocation.lat, curLocation.lon,
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locations[index].value.lat, locations[index].value.lon, "meters");
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double bearing = (bearingBetween(
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curLocation.lat,
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curLocation.lon,
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locations[index].value.lat,
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locations[index].value.lon,
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) +
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mapRotation) %
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360;
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print(distance);
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print(bearing);
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return Center(
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child: Container(
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margin: const EdgeInsets.all(8),
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decoration: BoxDecoration(
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color: Colors.black,
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border: Border.all(color: Colors.pink, width: 2),
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borderRadius: BorderRadius.circular(10),
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),
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padding: const EdgeInsets.all(16),
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child: Column(
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children: [
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Row(
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children: [
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Text(
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"${locations[index].key.$1}:${locations[index].key.$2}",
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style: const TextStyle(fontWeight: FontWeight.bold),
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),
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const Spacer(),
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Text(formatDistance(distance ~/ 1)),
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Transform.rotate(
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angle: bearing * (math.pi / 180),
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child: const Icon(
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Icons.arrow_upward,
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color: Colors.blue,
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),
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)
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],
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),
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Row(
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children: [
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StreamBuilder(
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stream: Stream.periodic(const Duration(seconds: 1)),
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builder: (context, _) {
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return Text(
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"${formatDuration(DateTime.now().difference(locations[index].value.timestamp))} ago",
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style: const TextStyle(fontSize: 12));
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},
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),
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const Spacer(),
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],
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),
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],
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),
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),
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);
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},
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);
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},
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),
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),
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],
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);
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},
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),
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);
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},
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);
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}
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