Files
maps-saas/apps/siro_maps/lib/logic/cubits/navigation/navigation_cubit.dart
T

1283 lines
45 KiB
Dart

import 'dart:async';
import 'dart:math';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart' show rootBundle;
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:geolocator/geolocator.dart';
import 'package:intaleq_maps/intaleq_maps.dart';
import 'package:intl/intl.dart';
import '../../../core/constants/api_constants.dart';
import '../../../core/constants/app_colors.dart';
import '../../../core/services/car_platform_bridge.dart';
import '../../../core/services/connectivity_service.dart';
import '../../../core/services/location_service.dart';
import '../../../core/services/pip_service.dart';
import '../../../core/services/telemetry_tracking_service.dart';
import '../../../core/services/tts_service.dart';
import '../../../core/services/vehicle_icon_generator.dart';
import 'package:shared_preferences/shared_preferences.dart';
import '../../../data/models/hazard_model.dart';
import '../../../data/models/route_model.dart';
import '../../../data/repositories/map_saas_repository.dart';
import 'navigation_state.dart';
class NavigationCubit extends Cubit<NavigationState> {
final MapSaasRepository repository;
final LocationService locationService;
final TtsService ttsService;
final ConnectivityService connectivityService;
IntaleqMapController? mapController;
StreamSubscription<Position>? _positionStreamSub;
StreamSubscription<bool>? _connectivitySub;
Timer? _searchDebounce;
static const double _offRouteThresholdM = 50.0; // 50m rerouting threshold
DateTime? _offRouteStartTime;
bool _isRerouting = false;
int _lastTraveledIndexInFullRoute = 0;
NavigationCubit({
required this.repository,
LocationService? locationService,
TtsService? ttsService,
ConnectivityService? connectivityService,
}) : locationService = locationService ?? LocationService.instance,
ttsService = ttsService ?? TtsService.instance,
connectivityService = connectivityService ?? ConnectivityService.instance,
super(const NavigationState()) {
_init();
}
// ── MOVEMENT INTERPOLATION ENGINE (30 FPS Smooth Vehicle Motion) ──
Timer? _movementInterpolationTimer;
LatLng? _currentDisplayPosition;
double _currentDisplayHeading = 0.0;
LatLng? _animStartPosition;
LatLng? _animTargetPosition;
double _animStartHeading = 0.0;
double _animTargetHeading = 0.0;
int _animCurrentStep = 0;
static const int _animTotalSteps = 25; // 25 steps * 40ms = 1000ms duration
static const Duration _animTickDuration = Duration(milliseconds: 40);
Future<void> _init() async {
print("🚀 [NavigationCubit] Initializing NavigationCubit...");
CarPlatformBridge.ensureInitialized();
await ttsService.init();
// Initialize 3-second telemetry tracking & 2-minute batch uploads
TelemetryTrackingService.instance.initialize();
TelemetryTrackingService.instance.checkPeriodicUpdates();
// Load saved vehicle & search preferences
try {
final prefs = await SharedPreferences.getInstance();
final savedColor = prefs.getInt('siro_vehicle_color') ?? 0xFF007AFF;
final savedStyle = prefs.getString('siro_vehicle_style') ?? 'car';
final savedScale = prefs.getDouble('siro_vehicle_scale') ?? 1.8;
final savedRecent = prefs.getStringList('siro_recent_searches') ?? [];
emit(state.copyWith(
selectedVehicleColor: savedColor,
selectedVehicleStyle: savedStyle,
vehicleScale: savedScale,
recentSearches: savedRecent,
));
} catch (e) {
print("⚠️ [NavigationCubit] SharedPreferences load error: $e");
}
// Check & listen to network connectivity
connectivityService.initialize();
final isOnline = await connectivityService.checkConnection();
print("🌐 [NavigationCubit] Network connectivity status: isOnline=$isOnline");
emit(state.copyWith(isOnline: isOnline));
_connectivitySub = connectivityService.onConnectivityChanged.listen((online) {
print("🌐 [NavigationCubit] Connectivity changed event: online=$online");
emit(state.copyWith(isOnline: online));
});
// Default to Amman if initial position is fetching
final defaultPos = const LatLng(ApiConstants.defaultLat, ApiConstants.defaultLng);
emit(state.copyWith(myLocation: defaultPos, altitude: 0.0));
final position = await locationService.getCurrentPosition();
if (position != null) {
final loc = LatLng(position.latitude, position.longitude);
final alt = (position.altitude.isNaN || position.altitude.isInfinite) ? 0.0 : position.altitude;
print("📍 [NavigationCubit] Initial GPS location acquired: lat=${loc.latitude.toStringAsFixed(6)}, lng=${loc.longitude.toStringAsFixed(6)}, alt=${alt.toStringAsFixed(1)}m, heading=${position.heading.toStringAsFixed(1)}°");
emit(state.copyWith(
myLocation: loc,
altitude: alt,
heading: position.heading,
speed: position.speed * 3.6,
));
_currentDisplayPosition = loc;
_currentDisplayHeading = position.heading;
_updateCarMarker(loc, position.heading);
} else {
print("⚠️ [NavigationCubit] Initial GPS returned null, using default Amman center");
}
_startLocationUpdates();
}
bool _hasInitiallyCenteredCamera = false;
bool _isMapStyleLoaded = false;
bool get isMapStyleLoaded => _isMapStyleLoaded;
int? _hasAnnouncedEarlyStepIndex;
void onMapCreated(IntaleqMapController controller) {
print("🗺️ [NavigationCubit] onMapCreated: Native map view created, controller attached.");
mapController = controller;
emit(state.copyWith(status: NavigationStatus.mapReady));
}
Future<void> _animateCameraToCurrentPosition() async {
LatLng? target = state.myLocation;
double heading = state.heading;
print("🎥 [NavigationCubit] _animateCameraToCurrentPosition (target=$target, styleLoaded=$_isMapStyleLoaded)");
if (target == null || (target.latitude == ApiConstants.defaultLat && target.longitude == ApiConstants.defaultLng)) {
final pos = await locationService.getCurrentPosition();
if (pos != null) {
final loc = LatLng(pos.latitude, pos.longitude);
final alt = (pos.altitude.isNaN || pos.altitude.isInfinite) ? 0.0 : pos.altitude;
target = loc;
heading = pos.heading;
emit(state.copyWith(
myLocation: loc,
altitude: alt,
heading: pos.heading,
speed: pos.speed * 3.6,
));
_currentDisplayPosition = loc;
_currentDisplayHeading = pos.heading;
_updateCarMarker(loc, pos.heading);
}
}
if (target != null && mapController != null && _isMapStyleLoaded) {
mapController!.animateCamera(
CameraUpdate.newCameraPosition(
CameraPosition(
target: target,
zoom: 16.5,
bearing: heading,
),
),
);
}
}
Future<void> _registerCurrentVehicleIcon() async {
if (mapController == null) return;
try {
final bytes = await VehicleIconGenerator.generateVehicleIconBytes(
styleId: state.selectedVehicleStyle,
primaryColor: Color(state.selectedVehicleColor),
);
await mapController!.addImage('current_vehicle_icon', bytes);
print("🚗 [NavigationCubit] Registered dynamic current_vehicle_icon (style=${state.selectedVehicleStyle}, color=0x${state.selectedVehicleColor.toRadixString(16)}, scale=${state.vehicleScale})");
} catch (e) {
print("⚠️ [NavigationCubit] Error generating vehicle icon: $e");
}
}
Future<void> _loadCustomIcons() async {
if (mapController == null) return;
// 1. Dynamic vehicle icon (with user-selected color & model)
await _registerCurrentVehicleIcon();
// 2. Fallback static car icon
try {
final carBytes = await rootBundle.load('assets/images/car.png');
await mapController!.addImage('car_icon', carBytes.buffer.asUint8List());
} catch (_) {}
// 3. Start & Destination pins
try {
final startBytes = await rootBundle.load('assets/images/A.png');
await mapController!.addImage('start_icon', startBytes.buffer.asUint8List());
await mapController!.addImage('asset_assets_images_A_png', startBytes.buffer.asUint8List());
} catch (_) {}
try {
final destBytes = await rootBundle.load('assets/images/b.png');
await mapController!.addImage('dest_icon', destBytes.buffer.asUint8List());
await mapController!.addImage('asset_assets_images_b_png', destBytes.buffer.asUint8List());
} catch (_) {}
}
Future<void> onStyleLoaded() async {
print("🎨 [NavigationCubit] onStyleLoaded: Map style rendered successfully! Registering custom icons & centering camera.");
_isMapStyleLoaded = true;
await _loadCustomIcons();
if (state.myLocation != null) {
_updateCarMarker(_currentDisplayPosition ?? state.myLocation!, _currentDisplayHeading);
}
_animateCameraToCurrentPosition();
}
// ── VEHICLE CUSTOMIZATION HANDLERS ──────────────────────────
Future<void> setVehicleColor(int colorValue) async {
emit(state.copyWith(selectedVehicleColor: colorValue));
try {
final prefs = await SharedPreferences.getInstance();
await prefs.setInt('siro_vehicle_color', colorValue);
} catch (_) {}
await _registerCurrentVehicleIcon();
if (state.myLocation != null) {
_updateCarMarker(_currentDisplayPosition ?? state.myLocation!, _currentDisplayHeading);
}
}
Future<void> setVehicleStyle(String styleId) async {
emit(state.copyWith(selectedVehicleStyle: styleId));
try {
final prefs = await SharedPreferences.getInstance();
await prefs.setString('siro_vehicle_style', styleId);
} catch (_) {}
await _registerCurrentVehicleIcon();
if (state.myLocation != null) {
_updateCarMarker(_currentDisplayPosition ?? state.myLocation!, _currentDisplayHeading);
}
}
Future<void> setVehicleScale(double scale) async {
emit(state.copyWith(vehicleScale: scale));
try {
final prefs = await SharedPreferences.getInstance();
await prefs.setDouble('siro_vehicle_scale', scale);
} catch (_) {}
if (state.myLocation != null) {
_updateCarMarker(_currentDisplayPosition ?? state.myLocation!, _currentDisplayHeading);
}
}
// ── LOCATION STREAM & SMOOTH INTERPOLATION ────────────────────
void _startLocationUpdates() {
_positionStreamSub?.cancel();
_positionStreamSub = locationService.getPositionStream().listen((pos) {
final newLoc = LatLng(pos.latitude, pos.longitude);
final speedKmH = pos.speed * 3.6;
final heading = pos.heading;
final alt = (pos.altitude.isNaN || pos.altitude.isInfinite) ? 0.0 : pos.altitude;
_onNewLocationFix(newLoc, heading, speedKmH, alt);
});
}
void _onNewLocationFix(LatLng newLoc, double heading, double speedKmH, double alt) {
emit(state.copyWith(
myLocation: newLoc,
altitude: alt,
heading: heading,
speed: speedKmH,
));
// Smooth movement interpolation for the vehicle marker and 3D camera
if (_currentDisplayPosition == null) {
_currentDisplayPosition = newLoc;
_currentDisplayHeading = heading;
_updateCarMarker(newLoc, heading);
} else {
_startMovementInterpolation(newLoc, heading);
}
// Continuous 3-second telemetry sampling with stationary filtering and 2-minute batching
TelemetryTrackingService.instance.recordPosition(
latitude: newLoc.latitude,
longitude: newLoc.longitude,
speedKmH: speedKmH,
heading: heading,
elevation: alt,
remainingDistance: state.remainingDistance,
);
// Proactively move camera on first acquired GPS lock (only when style is loaded)
if (!_hasInitiallyCenteredCamera && mapController != null && _isMapStyleLoaded) {
_hasInitiallyCenteredCamera = true;
mapController!.animateCamera(
CameraUpdate.newCameraPosition(
CameraPosition(target: newLoc, zoom: 16.5, bearing: heading),
),
);
}
if (state.isNavigating) {
_processActiveNavigationTick(newLoc, speedKmH, heading);
}
}
void _startMovementInterpolation(LatLng targetPos, double targetHeading) {
_movementInterpolationTimer?.cancel();
_animStartPosition = _currentDisplayPosition ?? targetPos;
_animStartHeading = _currentDisplayHeading;
_animTargetPosition = targetPos;
_animTargetHeading = targetHeading;
_animCurrentStep = 0;
_movementInterpolationTimer = Timer.periodic(_animTickDuration, (timer) {
_animCurrentStep++;
final double t = (_animCurrentStep / _animTotalSteps).clamp(0.0, 1.0);
// Smooth ease-out curve for natural vehicle movement
final double curvedT = 1.0 - (1.0 - t) * (1.0 - t);
final interpPos = _lerpLatLng(_animStartPosition!, _animTargetPosition!, curvedT);
final interpHeading = _lerpAngle(_animStartHeading, _animTargetHeading, curvedT);
_currentDisplayPosition = interpPos;
_currentDisplayHeading = interpHeading;
_updateCarMarker(interpPos, interpHeading);
// Smoothly update Google Maps style 3D camera periodically (~every 200ms) or on completion
if (state.isCameraLocked && mapController != null && _isMapStyleLoaded && state.isNavigating) {
if (_animCurrentStep % 5 == 0 || _animCurrentStep == _animTotalSteps) {
_updateNavigationCamera(interpPos, interpHeading, state.speed, state.distanceToNextStep);
}
}
if (_animCurrentStep >= _animTotalSteps) {
timer.cancel();
_movementInterpolationTimer = null;
}
});
}
// ── GOOGLE MAPS NAVIGATION PERSPECTIVE & DYNAMIC ZOOM ─────────
void _updateNavigationCamera(LatLng pos, double heading, double speedKmH, double distanceToStep) {
if (mapController == null || !_isMapStyleLoaded || !state.isCameraLocked) return;
// 1. Dynamic speed-adaptive zoom & lookahead calculation
double targetZoom;
double lookAheadMeters;
const double targetTilt = 45.0; // Fixed 45-degree angle as requested by user
if (distanceToStep > 0 && distanceToStep < 100.0) {
// Approaching turn / maneuver: camera descends down close to show intersection
targetZoom = 18.2;
lookAheadMeters = 35.0;
} else if (speedKmH > 70.0) {
// High speed (highway): opens up distance ahead ("تكبر تفتح مسافة أكثر")
final speedFactor = ((speedKmH - 70.0) / 50.0).clamp(0.0, 1.0);
targetZoom = 16.5 - (0.7 * speedFactor); // 16.5 -> 15.8
lookAheadMeters = 70.0 + (30.0 * speedFactor); // 70m -> 100m
} else if (speedKmH > 20.0) {
// Moderate city speed
final speedFactor = ((speedKmH - 20.0) / 50.0).clamp(0.0, 1.0);
targetZoom = 17.8 - (0.8 * speedFactor); // 17.8 -> 17.0
lookAheadMeters = 40.0 + (25.0 * speedFactor); // 40m -> 65m
} else {
// Stopped / very slow (< 20 km/h)
targetZoom = 18.0;
lookAheadMeters = 35.0;
}
// 2. Heading stabilization (lock to route if stopped/creeping)
double effectiveBearing = heading;
if (speedKmH < 4.0 && state.currentRoute != null) {
final coords = state.currentRoute!.coordinates;
if (_lastTraveledIndexInFullRoute + 1 < coords.length) {
effectiveBearing = _calculateBearing(
coords[_lastTraveledIndexInFullRoute],
coords[_lastTraveledIndexInFullRoute + 1],
);
}
}
// 3. Shift camera target ahead along heading vector
// This positions the car in the bottom ~28% of the viewport with 45° tilt!
final cameraTarget = _computeOffset(pos, lookAheadMeters, effectiveBearing);
mapController!.animateCamera(
CameraUpdate.newCameraPosition(
CameraPosition(
target: cameraTarget,
zoom: targetZoom,
tilt: targetTilt,
bearing: effectiveBearing,
),
),
);
}
LatLng _computeOffset(LatLng from, double distanceMeters, double bearingDegrees) {
const double earthRadius = 6378137.0; // WGS-84 earth radius in meters
final double dByR = distanceMeters / earthRadius;
final double latRad = from.latitude * (pi / 180.0);
final double lonRad = from.longitude * (pi / 180.0);
final double bearingRad = bearingDegrees * (pi / 180.0);
final double targetLatRad = asin(
sin(latRad) * cos(dByR) + cos(latRad) * sin(dByR) * cos(bearingRad),
);
final double targetLonRad = lonRad + atan2(
sin(bearingRad) * sin(dByR) * cos(latRad),
cos(dByR) - sin(latRad) * sin(targetLatRad),
);
return LatLng(targetLatRad * (180.0 / pi), targetLonRad * (180.0 / pi));
}
double _lerpAngle(double from, double to, double t) {
final double diff = ((to - from + 540.0) % 360.0) - 180.0;
return (from + diff * t) % 360.0;
}
LatLng _lerpLatLng(LatLng a, LatLng b, double t) {
return LatLng(
a.latitude + (b.latitude - a.latitude) * t,
a.longitude + (b.longitude - a.longitude) * t,
);
}
Future<void> _updateCarMarker(LatLng position, double bearing) async {
if (mapController == null || !_isMapStyleLoaded) return;
try {
await mapController!.setUserMarker(Marker(
markerId: const MarkerId('current_user_car'),
position: position,
rotation: bearing,
anchor: const Offset(0.5, 0.5),
flat: true,
icon: InlqBitmap.fromStyleImage('current_vehicle_icon', size: state.vehicleScale),
zIndex: 100,
));
} catch (e) {
print("⚠️ [NavigationCubit] _updateCarMarker error: $e");
}
}
void setCameraLocked(bool locked) {
emit(state.copyWith(isCameraLocked: locked));
}
void relockCameraToUser() {
print("🎯 [NavigationCubit] relockCameraToUser requested (styleLoaded=$_isMapStyleLoaded, loc=${state.myLocation})");
emit(state.copyWith(isCameraLocked: true));
if (state.myLocation != null && mapController != null && _isMapStyleLoaded) {
if (state.isNavigating) {
_updateNavigationCamera(
_currentDisplayPosition ?? state.myLocation!,
_currentDisplayHeading,
state.speed,
state.distanceToNextStep,
);
} else {
mapController!.animateCamera(
CameraUpdate.newCameraPosition(
CameraPosition(
target: state.myLocation!,
zoom: 16.5,
tilt: 0.0,
bearing: state.heading,
),
),
);
}
}
}
void setMapTheme(MapThemeType theme) {
print("🎨 [NavigationCubit] Changing map theme to: $theme (resetting _isMapStyleLoaded=false)");
_isMapStyleLoaded = false;
emit(state.copyWith(mapTheme: theme));
}
void toggleMute() {
ttsService.toggleMute();
emit(state.copyWith(isMuted: ttsService.isMuted));
}
void toggleLocationPicker() {
emit(state.copyWith(
isSelectingLocationOnMap: !state.isSelectingLocationOnMap,
));
}
// ── SEARCH & DESTINATION SELECTION ──────────────────────────
void onSearchChanged(String query) {
_searchDebounce?.cancel();
final trimmed = query.trim();
if (trimmed.length < 2) {
emit(state.copyWith(searchResults: [], isSearching: false));
return;
}
emit(state.copyWith(isSearching: true));
_searchDebounce = Timer(const Duration(milliseconds: 350), () async {
final results = await repository.searchPlaces(
query: trimmed,
userLocation: state.myLocation,
);
emit(state.copyWith(searchResults: results, isSearching: false));
});
}
Future<void> searchImmediately(String query) async {
_searchDebounce?.cancel();
final trimmed = query.trim();
if (trimmed.isEmpty) {
emit(state.copyWith(searchResults: [], isSearching: false));
return;
}
emit(state.copyWith(isSearching: true));
await saveRecentSearch(trimmed);
final results = await repository.searchPlaces(
query: trimmed,
userLocation: state.myLocation,
);
emit(state.copyWith(searchResults: results, isSearching: false));
}
Future<void> saveRecentSearch(String query) async {
final trimmed = query.trim();
if (trimmed.length < 2) return;
final updated = List<String>.from(state.recentSearches)
..remove(trimmed)
..insert(0, trimmed);
if (updated.length > 8) updated.removeLast();
emit(state.copyWith(recentSearches: updated));
try {
final prefs = await SharedPreferences.getInstance();
await prefs.setStringList('siro_recent_searches', updated);
} catch (_) {}
}
Future<void> clearRecentSearches() async {
emit(state.copyWith(recentSearches: []));
try {
final prefs = await SharedPreferences.getInstance();
await prefs.remove('siro_recent_searches');
} catch (_) {}
}
void clearSearch() {
_searchDebounce?.cancel();
emit(state.copyWith(searchResults: [], isSearching: false));
}
// ── STEP BOUNDING OVERVIEW ──────────────────────────────────
void overviewStepBounding(int stepIndex) {
if (state.currentRoute == null || stepIndex < 0 || stepIndex >= state.routeSteps.length) return;
final step = state.routeSteps[stepIndex];
final interval = step['interval'];
final coords = state.currentRoute!.coordinates;
if (interval is List && interval.length >= 2) {
final startIdx = (interval[0] as num).toInt().clamp(0, coords.length - 1);
final endIdx = (interval[1] as num).toInt().clamp(0, coords.length - 1);
if (startIdx <= endIdx) {
final stepCoords = coords.sublist(startIdx, endIdx + 1);
if (stepCoords.isNotEmpty) {
_fitRouteInView(stepCoords);
return;
}
}
}
final stepLat = (step['lat'] as num?)?.toDouble() ?? 0.0;
final stepLng = (step['lng'] as num?)?.toDouble() ?? 0.0;
if (stepLat != 0.0 && stepLng != 0.0 && mapController != null && _isMapStyleLoaded) {
mapController!.animateCamera(
CameraUpdate.newCameraPosition(
CameraPosition(target: LatLng(stepLat, stepLng), zoom: 17.5, tilt: 45.0),
),
);
}
}
Future<void> calculateRouteTo(
LatLng destination, {
String title = 'وجهة مختارة',
String originTitle = 'موقعي الحالي',
}) async {
print("🛣️ [NavigationCubit] calculateRouteTo: origin=$originTitle, target=$destination, title=$title, myLocation=${state.myLocation}");
if (state.myLocation == null) {
print("⚠️ [NavigationCubit] Cannot calculate route: current GPS location is null!");
return;
}
emit(state.copyWith(
status: NavigationStatus.loading,
destination: destination,
destinationTitle: title,
originTitle: originTitle,
searchResults: [],
));
try {
print("🌐 [NavigationCubit] Requesting route from repository...");
final routes = await repository.getRoute(
origin: state.myLocation!,
destination: destination,
);
if (routes.isEmpty) {
print("❌ [NavigationCubit] Repository returned 0 routes!");
emit(state.copyWith(
status: NavigationStatus.error,
errorMessage: 'تعذر حساب المسار إلى الوجهة المحددة.',
));
return;
}
final primaryRoute = routes.first;
print("✅ [NavigationCubit] Route calculated successfully: ${routes.length} routes found, primary: dist=${primaryRoute.formattedDistance}, dur=${primaryRoute.formattedDuration}, coordsCount=${primaryRoute.coordinates.length}");
final polylines = _createPolylines(routes, 0);
// Origin Pin A
final startMarker = Marker(
markerId: const MarkerId('origin_pin'),
position: state.myLocation!,
icon: InlqBitmap.fromStyleImage('start_icon'),
anchor: const Offset(0.5, 1.0),
infoWindow: InfoWindow(title: originTitle, snippet: 'start'),
zIndex: 90,
);
// Destination Pin B
final destMarker = Marker(
markerId: const MarkerId('dest_pin'),
position: destination,
icon: InlqBitmap.fromStyleImage('dest_icon'),
anchor: const Offset(0.5, 1.0),
infoWindow: InfoWindow(title: title, snippet: 'end'),
zIndex: 90,
);
final updatedMarkers = Set<Marker>.from(state.markers)
..removeWhere((m) => m.markerId.value == 'origin_pin' || m.markerId.value == 'dest_pin')
..add(startMarker)
..add(destMarker);
emit(state.copyWith(
status: NavigationStatus.routePreview,
routes: routes,
selectedRouteIndex: 0,
destination: destination,
destinationTitle: title,
originTitle: originTitle,
routeSteps: primaryRoute.steps,
remainingDistance: primaryRoute.distanceM,
remainingDuration: primaryRoute.durationS,
polylines: polylines,
markers: updatedMarkers,
arrivalTime: _calculateArrivalTime(primaryRoute.durationS),
));
if (mapController != null && _isMapStyleLoaded) {
await mapController!.addMarker(startMarker);
await mapController!.addMarker(destMarker);
print("📍 [NavigationCubit] Directly added startMarker & destMarker to native map engine.");
}
_fitRouteInView(primaryRoute.coordinates);
} catch (e) {
print("❌ [NavigationCubit] Error calculating route: $e");
emit(state.copyWith(
status: NavigationStatus.error,
errorMessage: 'حدث خطأ أثناء استدعاء خدمة التوجيه.',
));
}
}
void selectRoute(int index) {
if (index < 0 || index >= state.routes.length) return;
final route = state.routes[index];
final polylines = _createPolylines(state.routes, index);
emit(state.copyWith(
selectedRouteIndex: index,
routeSteps: route.steps,
remainingDistance: route.distanceM,
remainingDuration: route.durationS,
polylines: polylines,
arrivalTime: _calculateArrivalTime(route.durationS),
));
_fitRouteInView(route.coordinates);
}
// ── TURN-BY-TURN NAVIGATION LIFECYCLE ────────────────────────
void startNavigation() {
print("🧭 [NavigationCubit] startNavigation triggered!");
if (state.currentRoute == null) {
print("⚠️ [NavigationCubit] startNavigation aborted: currentRoute is null");
return;
}
final route = state.currentRoute!;
final steps = route.steps;
print("🧭 [NavigationCubit] Starting navigation along route: ${route.formattedDistance}, ETA ${route.formattedDuration}, ${steps.length} steps");
_lastTraveledIndexInFullRoute = 0;
_offRouteStartTime = null;
final firstInstruction = steps.isNotEmpty
? (steps[0]['text']?.toString() ?? 'انطلق نحو الوجهة')
: 'انطلق نحو الوجهة';
final nextInst = steps.length > 1
? (steps[1]['text']?.toString() ?? '')
: '';
final initialModifier = steps.isNotEmpty ? (steps[0]['sign'] ?? steps[0]['modifier'] ?? 0) : 0;
emit(state.copyWith(
status: NavigationStatus.navigating,
currentStepIndex: 0,
currentInstruction: firstInstruction,
nextInstruction: nextInst,
currentManeuverModifier: initialModifier,
isCameraLocked: true,
polylines: _createPolylines(state.routes, state.selectedRouteIndex, traveledIndex: 0),
));
ttsService.speak(firstInstruction);
// Immediate 3D Heading-Up camera orientation with 45° tilt and lookahead offset
if (state.myLocation != null && mapController != null && _isMapStyleLoaded) {
double bearing = state.heading;
if (bearing == 0.0 && route.coordinates.length > 1) {
bearing = _calculateBearing(route.coordinates[0], route.coordinates[1]);
}
_currentDisplayPosition = state.myLocation;
_currentDisplayHeading = bearing;
_updateNavigationCamera(state.myLocation!, bearing, state.speed, 100.0);
}
CarPlatformBridge.updateNavState(
lat: state.myLocation!.latitude,
lng: state.myLocation!.longitude,
bearing: state.heading,
speed: state.speed,
instruction: firstInstruction,
distanceToStep: 100,
totalDistance: route.distanceM,
eta: route.durationS,
maneuver: initialModifier,
isNavigating: true,
);
PipService.instance.setNavigating(true);
}
void stopNavigation() {
print("🛑 [NavigationCubit] stopNavigation triggered.");
TelemetryTrackingService.instance.flush(repository: repository);
_movementInterpolationTimer?.cancel();
_movementInterpolationTimer = null;
ttsService.stop();
CarPlatformBridge.stopNavigation();
PipService.instance.setNavigating(false);
_lastTraveledIndexInFullRoute = 0;
_offRouteStartTime = null;
_hasAnnouncedEarlyStepIndex = null;
final remainingMarkers = Set<Marker>.from(state.markers)
..removeWhere((m) => m.markerId.value == 'origin_pin' || m.markerId.value == 'dest_pin');
if (mapController != null && _isMapStyleLoaded) {
mapController!.removeMarker(const MarkerId('origin_pin'));
mapController!.removeMarker(const MarkerId('dest_pin'));
}
emit(state.copyWith(
status: NavigationStatus.mapReady,
routes: [],
routeSteps: [],
polylines: {},
markers: remainingMarkers,
destination: null,
destinationTitle: '',
originTitle: 'موقعي الحالي',
currentInstruction: '',
nextInstruction: '',
isCameraLocked: true,
));
if (state.myLocation != null && mapController != null && _isMapStyleLoaded) {
mapController!.animateCamera(
CameraUpdate.newCameraPosition(
CameraPosition(target: state.myLocation!, zoom: 16.5, tilt: 0),
),
);
}
}
void simulateLocationTick(LatLng pos, {double speed = 60.0, double heading = 0.0, double altitude = 0.0}) {
_onNewLocationFix(pos, heading, speed, altitude);
}
void _processActiveNavigationTick(LatLng pos, double speedKmH, double heading) {
if (state.currentRoute == null || state.routeSteps.isEmpty) return;
final route = state.currentRoute!;
final coords = route.coordinates;
// 1. Check destination arrival
final dest = state.destination;
if (dest != null) {
final distToFinal = locationService.calculateDistance(pos, dest);
if (distToFinal < 25.0) {
ttsService.speak('لقد وصلت إلى وجهتك.');
emit(state.copyWith(status: NavigationStatus.arrived));
CarPlatformBridge.stopNavigation();
return;
}
}
// 2. Turn-by-Turn step progression
final steps = state.routeSteps;
int stepIdx = state.currentStepIndex;
if (stepIdx < steps.length) {
final step = steps[stepIdx];
LatLng? stepTarget;
final stepLat = (step['lat'] as num?)?.toDouble() ?? 0.0;
final stepLng = (step['lng'] as num?)?.toDouble() ?? 0.0;
if (stepLat != 0.0 && stepLng != 0.0) {
stepTarget = LatLng(stepLat, stepLng);
} else {
final interval = step['interval'];
if (interval is List && interval.length >= 2) {
final endIdx = (interval[1] as num).toInt();
if (endIdx >= 0 && endIdx < coords.length) {
stepTarget = coords[endIdx];
}
}
}
if (stepTarget != null) {
final distToStep = locationService.calculateDistance(pos, stepTarget);
emit(state.copyWith(distanceToNextStep: distToStep));
// Advance voice announcement when approaching turn (150m - 200m)
if (distToStep <= 180.0 && distToStep > 50.0 && _hasAnnouncedEarlyStepIndex != stepIdx) {
_hasAnnouncedEarlyStepIndex = stepIdx;
final roundDist = ((distToStep / 50).round() * 50).clamp(50, 200);
final text = step['text']?.toString() ?? '';
if (text.isNotEmpty) {
ttsService.speak('بعد $roundDist متراً، $text');
}
}
final stepEndIdx = (step['interval'] is List && (step['interval'] as List).length >= 2)
? ((step['interval'] as List)[1] as num).toInt()
: -1;
final hasPassedStep = stepEndIdx > 0 && _lastTraveledIndexInFullRoute >= stepEndIdx;
if ((distToStep < 35.0 || hasPassedStep) && stepIdx + 1 < steps.length) {
stepIdx++;
_hasAnnouncedEarlyStepIndex = null;
final nextStep = steps[stepIdx];
final text = nextStep['text']?.toString() ?? '';
final upcomingText = stepIdx + 1 < steps.length ? (steps[stepIdx + 1]['text']?.toString() ?? '') : '';
final modifier = nextStep['sign'] ?? nextStep['modifier'] ?? 0;
emit(state.copyWith(
currentStepIndex: stepIdx,
currentInstruction: text,
nextInstruction: upcomingText,
currentManeuverModifier: modifier,
));
ttsService.speak(text);
CarPlatformBridge.updateNavState(
lat: pos.latitude,
lng: pos.longitude,
bearing: heading,
speed: speedKmH,
instruction: text,
distanceToStep: distToStep,
totalDistance: state.remainingDistance,
eta: state.remainingDuration,
maneuver: modifier,
isNavigating: true,
);
}
}
}
// 3. Mathematical map matching & deviation check with opposite lane rejection
_checkOffRoute(pos, heading, speedKmH);
}
void _checkOffRoute(LatLng pos, double heading, double speedKmH) {
if (state.currentRoute == null || _isRerouting) return;
final coords = state.currentRoute!.coordinates;
if (coords.length < 2) return;
// Search window constrained around vehicle's last known route progress
final int startWindow = (_lastTraveledIndexInFullRoute - 3).clamp(0, coords.length - 2);
final int endWindow = (_lastTraveledIndexInFullRoute + 45).clamp(0, coords.length - 1);
double minDistance = double.infinity;
int closestSegmentIndex = _lastTraveledIndexInFullRoute;
for (int i = startWindow; i < endWindow; i++) {
final p1 = coords[i];
final p2 = coords[i + 1];
final distToSeg = _distanceToSegment(pos, p1, p2);
final segBearing = _calculateBearing(p1, p2);
// OSM 4-6m Opposite Lane Filter:
// Dual carriageways in Jordan/MENA are separated by 4-8m.
// If the driver is moving (> 8 km/h), compute angle difference with the segment.
// If angle delta > 85° (driving opposite to the segment), add heavy penalty (120m)
// to guarantee we NEVER snap onto the oncoming opposite lane!
double effectiveDist = distToSeg;
if (speedKmH > 8.0) {
final angleDiff = ((heading - segBearing + 540) % 360) - 180;
if (angleDiff.abs() > 85.0) {
effectiveDist += 120.0; // Penalty: opposite direction carriageway
}
}
if (effectiveDist < minDistance) {
minDistance = effectiveDist;
closestSegmentIndex = i;
}
}
// Check against 50-meter threshold as required by user
if (minDistance > _offRouteThresholdM) {
_offRouteStartTime ??= DateTime.now();
// Sustain deviation for 4 seconds before rerouting to prevent GPS jitter loops
if (DateTime.now().difference(_offRouteStartTime!).inSeconds >= 4) {
_recalculateRouteDueToDeviation(pos);
}
} else {
_offRouteStartTime = null;
// Vehicle is progressing on the route!
if (closestSegmentIndex > _lastTraveledIndexInFullRoute) {
_lastTraveledIndexInFullRoute = closestSegmentIndex;
// Progressively recalculate remaining distance & duration and update traveled line
_updateRemainingRouteMetrics(coords, closestSegmentIndex);
}
}
}
void _updateRemainingRouteMetrics(List<LatLng> coords, int fromIndex) {
double remainingM = 0;
for (int i = fromIndex; i < coords.length - 1; i++) {
remainingM += locationService.calculateDistance(coords[i], coords[i + 1]);
}
final speedMps = (state.speed > 10 ? state.speed : 40.0) / 3.6;
final remainingSec = remainingM / speedMps;
final updatedPolylines = _createPolylines(
state.routes,
state.selectedRouteIndex,
traveledIndex: fromIndex,
);
emit(state.copyWith(
remainingDistance: remainingM,
remainingDuration: remainingSec,
arrivalTime: _calculateArrivalTime(remainingSec),
polylines: updatedPolylines,
));
}
Future<void> _recalculateRouteDueToDeviation(LatLng pos) async {
if (_isRerouting || state.destination == null) return;
_isRerouting = true;
_offRouteStartTime = null;
ttsService.speak('إعادة حساب المسار...');
try {
final routes = await repository.getRoute(
origin: pos,
destination: state.destination!,
);
if (routes.isNotEmpty) {
final newRoute = routes.first;
_lastTraveledIndexInFullRoute = 0;
final polylines = _createPolylines(routes, 0);
emit(state.copyWith(
routes: routes,
selectedRouteIndex: 0,
routeSteps: newRoute.steps,
currentStepIndex: 0,
remainingDistance: newRoute.distanceM,
remainingDuration: newRoute.durationS,
polylines: polylines,
arrivalTime: _calculateArrivalTime(newRoute.durationS),
currentInstruction: newRoute.steps.isNotEmpty
? (newRoute.steps[0]['text']?.toString() ?? 'تابع السير')
: 'تابع السير',
));
}
} catch (_) {}
_isRerouting = false;
}
// ── USER SUBMISSIONS: PLACES & HAZARDS (WITH PIN PICKER) ─────
void startLocationPicking(String mode) {
final targetLoc = mapController?.cameraPosition?.target ?? state.myLocation ?? const LatLng(31.9539, 35.9106);
final pickMarker = Marker(
markerId: const MarkerId('picker_pin'),
position: targetLoc,
icon: InlqBitmap.fromStyleImage('dest_icon'),
anchor: const Offset(0.5, 1.0),
infoWindow: InfoWindow(
title: mode == 'place' ? '📍 موقع المنشأة المحددة' : '⚠️ موقع البلاغ المحدد',
),
zIndex: 95,
);
final updatedMarkers = Set<Marker>.from(state.markers)
..removeWhere((m) => m.markerId.value == 'picker_pin')
..add(pickMarker);
emit(state.copyWith(
isSelectingLocationOnMap: true,
activePickerMode: mode,
pickedLocation: targetLoc,
markers: updatedMarkers,
));
if (mapController != null && _isMapStyleLoaded) {
mapController!.addMarker(pickMarker);
}
}
void updatePickedLocation(LatLng newLoc) {
if (!state.isSelectingLocationOnMap) return;
final pickMarker = Marker(
markerId: const MarkerId('picker_pin'),
position: newLoc,
icon: InlqBitmap.fromStyleImage('dest_icon'),
anchor: const Offset(0.5, 1.0),
infoWindow: InfoWindow(
title: state.activePickerMode == 'place' ? '📍 موقع المنشأة المحددة' : '⚠️ موقع البلاغ المحدد',
),
zIndex: 95,
);
final updatedMarkers = Set<Marker>.from(state.markers)
..removeWhere((m) => m.markerId.value == 'picker_pin')
..add(pickMarker);
emit(state.copyWith(
pickedLocation: newLoc,
markers: updatedMarkers,
));
if (mapController != null && _isMapStyleLoaded) {
mapController!.addMarker(pickMarker);
}
}
void cancelLocationPicking() {
final remainingMarkers = Set<Marker>.from(state.markers)
..removeWhere((m) => m.markerId.value == 'picker_pin');
emit(state.copyWith(
isSelectingLocationOnMap: false,
clearActivePickerMode: true,
clearPickedLocation: true,
markers: remainingMarkers,
));
if (mapController != null && _isMapStyleLoaded) {
mapController!.removeMarker(const MarkerId('picker_pin'));
}
}
Future<bool> submitPlace(String name, String category, {LatLng? position}) async {
final targetPos = position ?? state.pickedLocation ?? mapController?.cameraPosition?.target ?? state.myLocation;
if (targetPos == null) return false;
final success = await repository.submitNewPlace(
name: name,
category: category,
position: targetPos,
altitude: state.altitude,
);
if (success) {
cancelLocationPicking();
}
return success;
}
Future<bool> reportHazard({
required String type,
required String title,
required String description,
LatLng? position,
}) async {
final targetPos = position ?? state.pickedLocation ?? state.myLocation;
if (targetPos == null) return false;
final hazard = HazardModel(
type: type,
title: title,
description: description,
latitude: targetPos.latitude,
longitude: targetPos.longitude,
altitude: state.altitude,
createdAt: DateTime.now(),
);
final success = await repository.reportHazard(hazard);
if (success) {
cancelLocationPicking();
}
return success;
}
// ── HELPERS ──────────────────────────────────────────────────
double _calculateBearing(LatLng from, LatLng to) {
final lat1 = from.latitude * (pi / 180.0);
final lon1 = from.longitude * (pi / 180.0);
final lat2 = to.latitude * (pi / 180.0);
final lon2 = to.longitude * (pi / 180.0);
final dLon = lon2 - lon1;
final y = sin(dLon) * cos(lat2);
final x = cos(lat1) * sin(lat2) - sin(lat1) * cos(lat2) * cos(dLon);
final radians = atan2(y, x);
return (radians * (180.0 / pi) + 360.0) % 360.0;
}
double _distanceToSegment(LatLng p, LatLng a, LatLng b) {
final double midLatRad = (a.latitude + b.latitude) * 0.5 * (pi / 180.0);
final double cosMid = cos(midLatRad);
final double dx = (b.longitude - a.longitude) * cosMid;
final double dy = b.latitude - a.latitude;
final double segLenSquared = dx * dx + dy * dy;
if (segLenSquared <= 1e-12) {
return locationService.calculateDistance(p, a);
}
final double px = (p.longitude - a.longitude) * cosMid;
final double py = p.latitude - a.latitude;
final double t = ((px * dx + py * dy) / segLenSquared).clamp(0.0, 1.0);
final double projLat = a.latitude + t * (b.latitude - a.latitude);
final double projLng = a.longitude + t * (b.longitude - a.longitude);
return locationService.calculateDistance(p, LatLng(projLat, projLng));
}
Set<Polyline> _createPolylines(List<RouteData> routes, int activeIndex, {int traveledIndex = 0}) {
final Set<Polyline> set = {};
// 1. Render alternative routes first
for (int i = 0; i < routes.length; i++) {
if (i == activeIndex) continue;
set.add(Polyline(
polylineId: PolylineId('route_$i'),
points: routes[i].coordinates,
color: const Color(0xFF90A4AE).withValues(alpha: 0.6),
width: 5,
));
}
// 2. Render selected active route
if (activeIndex >= 0 && activeIndex < routes.length) {
final activeCoords = routes[activeIndex].coordinates;
if (traveledIndex > 0 && traveledIndex < activeCoords.length) {
// Traveled portion (muted gray)
set.add(Polyline(
polylineId: const PolylineId('route_traveled'),
points: activeCoords.sublist(0, traveledIndex + 1),
color: const Color(0xFF90A4AE).withValues(alpha: 0.5),
width: 6,
));
// Remaining portion (active Apple blue)
set.add(Polyline(
polylineId: const PolylineId('route_remaining'),
points: activeCoords.sublist(traveledIndex),
color: AppColors.appleBlue,
width: 7,
));
} else {
set.add(Polyline(
polylineId: PolylineId('route_$activeIndex'),
points: activeCoords,
color: AppColors.appleBlue,
width: 7,
));
}
}
return set;
}
void _fitRouteInView(List<LatLng> coords) {
if (coords.isEmpty || mapController == null || !_isMapStyleLoaded) {
print("⚠️ [NavigationCubit] _fitRouteInView deferred/skipped (coordsCount=${coords.length}, mapController=${mapController != null}, styleLoaded=$_isMapStyleLoaded)");
return;
}
double minLat = coords.first.latitude;
double maxLat = coords.first.latitude;
double minLng = coords.first.longitude;
double maxLng = coords.first.longitude;
for (var c in coords) {
if (c.latitude < minLat) minLat = c.latitude;
if (c.latitude > maxLat) maxLat = c.latitude;
if (c.longitude < minLng) minLng = c.longitude;
if (c.longitude > maxLng) maxLng = c.longitude;
}
print("🎬 [NavigationCubit] _fitRouteInView: bounds SW=($minLat, $minLng), NE=($maxLat, $maxLng)");
mapController!.animateCamera(
CameraUpdate.newLatLngBounds(
LatLngBounds(
southwest: LatLng(minLat, minLng),
northeast: LatLng(maxLat, maxLng),
),
left: 50,
right: 50,
top: 100,
bottom: 220,
),
);
}
String _calculateArrivalTime(double durationSeconds) {
final arrival = DateTime.now().add(Duration(seconds: durationSeconds.round()));
return DateFormat('hh:mm a').format(arrival);
}
@override
Future<void> close() {
_movementInterpolationTimer?.cancel();
_positionStreamSub?.cancel();
_connectivitySub?.cancel();
_searchDebounce?.cancel();
ttsService.stop();
TelemetryTrackingService.instance.dispose(repository: repository);
return super.close();
}
}