336 lines
12 KiB
Dart
336 lines
12 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: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:intl/intl.dart';
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import 'package:latlong2/latlong.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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/*
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Future<void> _fetchPoints() async {
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final api = OwntracksApi(baseUrl: '', username: '', pass: '');
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print(await api.getDevices());
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final points = await api.fetchPointsForDevice(
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user: 'yxk',
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device: 'meow',
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from: DateTime.now().subtract(const Duration(days: 1)));
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setState(() {
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_points = points.unwrapOr([])
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.map((point) => LatLng(point.lat, point.lon))
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.toList();
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});
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}
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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 settings_cubit = context.read<SettingsCubit>();
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cubit.subscribe(settings_cubit.state);
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settings_cubit.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, temp_path) =>
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BlocBuilder<SettingsCubit, SettingsState>(
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builder: (context, state) {
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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(temp_path.data,
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hiveBoxName: 'HiveCacheStore')),
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),
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...state.activeDevices
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.map((id) => UserPath(device: id, settings: state)),
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const MapCompass.cupertino(
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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: () =>
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(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({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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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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return bloc;
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},
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child: BlocListener<LocationSubscribeCubit, LocationUpdateState>(
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listener: (context, state) {
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UserPathBloc userPathBloc = context.read<UserPathBloc>();
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if (state
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case LocationUpdateReceived(:final position, :final deviceId)) {
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if (userPathBloc.deviceId == state.deviceId) {
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context
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.read<UserPathBloc>()
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.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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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(
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context, widget.device
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),
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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: [
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// BoxShadow(color: Colors.black, blurRadius: 4)
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]),
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padding: 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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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 =
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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].withOpacity(
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(math.pow(i, 2) / math.pow(segments.length, 2)) * 0.7 +
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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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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(polylines: [
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Polyline(
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points: state.livePoints
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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.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 * 0.26,
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width: MediaQuery.of(bsContext).size.width,
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decoration: BoxDecoration(
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color: Colors.black,
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// border: Border.all(color: Colors.blueAccent, width: 2),
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borderRadius: BorderRadius.only(topLeft: Radius.circular(30), topRight: Radius.circular(30)),
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),
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padding: EdgeInsets.all(32),
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child: Column(
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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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SizedBox(height: 16,),
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Builder(
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builder: (sheetContext) {
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final state = context.watch<UserPathBloc>().state
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as MainUserPathState;
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// get user's current location
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// final _istate = state as MainUserPathState;
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if (state.livePoints.isEmpty) {
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return Text(
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"Couldn't find ${user.$1}:${user.$2}'s Location");
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}
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final curLocation = state.livePoints.last;
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// MapController.of(sheetContext).camera.pointToLatLng(
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// math.Point(curLocation.lat, curLocation.lon));
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return Column(
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children: [
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Container(
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decoration: BoxDecoration(
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color: Colors.black,
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border: Border.all(color: Colors.orange, width: 2),
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borderRadius: BorderRadius.circular(10),
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),
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padding: EdgeInsets.all(16),
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width: double.infinity,
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child: Column(
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children: [
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Text(
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"(${curLocation.lat.toStringAsFixed(4)}, ${curLocation.lon.toStringAsFixed(4)})"),
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Text(DateFormat('dd.MM.yyyy - kk:mm:ss')
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.format(curLocation.timestamp)),
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StreamBuilder(
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// rebuild every second for that ticking effect
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// not hyper efficient, but it's only a text
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stream: Stream.periodic(
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const Duration(seconds: 1)),
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builder: (context, _) {
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return Text(
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"${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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);
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},
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),
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],
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));
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// title with icon, user name and device id
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// location as a lat, long (truncated to 4 comma spaces)
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// time since last location update
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// location to other users in a grid (2 rows)
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});
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}
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