879 lines
30 KiB
Dart
879 lines
30 KiB
Dart
import 'dart:async';
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import 'dart:convert';
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import 'dart:math';
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import 'package:Intaleq/views/widgets/error_snakbar.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:geolocator/geolocator.dart';
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import 'package:get/get.dart';
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import 'package:maplibre_gl/maplibre_gl.dart';
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import 'package:http/http.dart' as http;
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import '../../../constant/box_name.dart';
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import '../../../constant/links.dart';
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import '../../../controller/functions/crud.dart';
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import '../../../controller/functions/tts.dart';
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import '../../../controller/home/decode_polyline_isolate.dart';
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import '../../../main.dart';
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import '../../../print.dart';
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class NavigationController extends GetxController {
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// ==========================================================================
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// ── Tunables ──────────────────────────────────────────────────────────────
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// ==========================================================================
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/// How often we snapshot the current position into the local buffer.
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static const Duration _recordInterval = Duration(seconds: 3);
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/// How often we flush the buffer and POST it to the server.
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static const Duration _uploadInterval = Duration(minutes: 2);
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/// Minimum metres the device must move before we bother recording a point.
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static const double _minMoveToRecord = 10.0;
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/// Minimum metres the device must move between general location ticks.
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static const double _minMoveToProcess = 2.0;
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// ==========================================================================
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// ── Map state ─────────────────────────────────────────────────────────────
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// ==========================================================================
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bool isLoading = false;
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MaplibreMapController? mapController;
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bool isStyleLoaded = false;
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final TextEditingController placeDestinationController =
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TextEditingController();
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LatLng? myLocation;
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double heading = 0.0;
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double currentSpeed = 0.0; // km/h
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double totalDistance = 0.0; // metres accumulated this session
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// MapLibre objects
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Symbol? carSymbol;
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Symbol? destinationSymbol;
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Line? remainingRouteLine;
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Line? traveledRouteLine;
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// General location polling
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Timer? _locationUpdateTimer;
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LatLng? _lastProcessedLocation;
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// Search
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List<dynamic> placesDestination = [];
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Timer? _debounce;
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// Route
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LatLng? _finalDestination;
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List<Map<String, dynamic>> routeSteps = [];
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List<LatLng> _fullRouteCoordinates = [];
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int _lastTraveledIndexInFullRoute = 0;
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// Navigation guidance
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bool _nextInstructionSpoken = false;
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String currentInstruction = "";
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String nextInstruction = "";
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int currentStepIndex = 0;
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String distanceToNextStep = "";
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String totalDistanceRemaining = "";
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String estimatedTimeRemaining = "";
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// Stored route totals (for ETA re-calculation)
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double _routeTotalDistanceM = 0;
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double _routeTotalDurationS = 0;
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// Camera
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bool isNavigating = false;
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bool _cameraLockedToUser = true;
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// ==========================================================================
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// ── Batch location tracking ───────────────────────────────────────────────
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// ==========================================================================
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/// In-memory ring buffer — points accumulate here every 3 s.
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final List<Map<String, dynamic>> _trackBuffer = [];
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Timer? _recordTimer;
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Timer? _uploadBatchTimer;
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/// Last position that was written to the buffer (for distance gate).
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LatLng? _lastBufferedLocation;
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DateTime? _lastBufferedTime;
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/// Last position used to accumulate `totalDistance`.
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LatLng? _lastDistanceLocation;
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// ==========================================================================
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// ── Speed-adaptive camera ─────────────────────────────────────────────────
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// ==========================================================================
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double get _targetZoom {
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if (currentSpeed < 15) return 19.0;
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if (currentSpeed < 40) return 18.0;
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if (currentSpeed < 70) return 17.0;
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if (currentSpeed < 100) return 16.0;
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return 15.0;
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}
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double get _targetTilt {
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if (currentSpeed < 10) return 0.0;
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if (currentSpeed < 40) return 40.0;
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return 55.0;
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}
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static final String _routeApiBaseUrl =
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"${AppLink.routesOsm}/route/v1/driving";
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// ==========================================================================
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// ── Lifecycle ─────────────────────────────────────────────────────────────
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// ==========================================================================
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@override
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void onInit() {
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super.onInit();
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_initialize();
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}
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Future<void> _initialize() async {
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await _getCurrentLocationAndStartUpdates();
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if (!Get.isRegistered<TextToSpeechController>()) {
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Get.put(TextToSpeechController());
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}
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}
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@override
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void onClose() {
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_locationUpdateTimer?.cancel();
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_recordTimer?.cancel();
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_uploadBatchTimer?.cancel();
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_debounce?.cancel();
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mapController?.dispose();
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placeDestinationController.dispose();
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// Final flush before closing so no points are lost
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_flushBufferToServer();
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super.onClose();
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}
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// ==========================================================================
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// ── Map callbacks ─────────────────────────────────────────────────────────
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// ==========================================================================
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void onMapCreated(MaplibreMapController controller) {
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mapController = controller;
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}
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Future<void> onStyleLoaded() async {
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isStyleLoaded = true;
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await _loadCustomIcons();
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if (myLocation != null) {
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animateCameraToPosition(myLocation!);
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_updateCarMarker();
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}
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if (_fullRouteCoordinates.isNotEmpty) {
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_updatePolylinesSets([], _fullRouteCoordinates);
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}
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}
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Future<void> onMapLongPressed(Point<double> point, LatLng tappedPoint) async {
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HapticFeedback.mediumImpact();
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Get.dialog(
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AlertDialog(
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
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title: const Text('بدء الملاحة؟',
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style: TextStyle(fontWeight: FontWeight.bold)),
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content: const Text('هل تريد الذهاب إلى هذا الموقع؟'),
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actions: [
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TextButton(
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child: const Text('إلغاء', style: TextStyle(color: Colors.grey)),
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onPressed: () => Get.back(),
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),
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ElevatedButton(
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style: ElevatedButton.styleFrom(
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backgroundColor: const Color(0xFF0D47A1),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12)),
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),
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child:
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const Text('اذهب الآن', style: TextStyle(color: Colors.white)),
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onPressed: () {
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Get.back();
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startNavigationTo(tappedPoint, infoWindowTitle: 'الموقع المحدد');
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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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// ── Location polling (every second) ──────────────────────────────────────
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// ==========================================================================
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Future<void> _getCurrentLocationAndStartUpdates() async {
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try {
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final position = await Geolocator.getCurrentPosition(
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desiredAccuracy: LocationAccuracy.high);
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myLocation = LatLng(position.latitude, position.longitude);
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update();
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if (isStyleLoaded) animateCameraToPosition(myLocation!);
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_startLocationTimer();
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_startBatchTimers(); // ← start tracking as soon as we have a fix
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} catch (e) {
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Log.print("Error getting initial location: $e");
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}
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}
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void _startLocationTimer() {
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_locationUpdateTimer?.cancel();
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_locationUpdateTimer =
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Timer.periodic(const Duration(seconds: 1), (_) => _tick());
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}
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Future<void> _tick() async {
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try {
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final position = await Geolocator.getCurrentPosition(
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desiredAccuracy: LocationAccuracy.high);
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final newLoc = LatLng(position.latitude, position.longitude);
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// Gate: ignore micro-jitter
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if (_lastProcessedLocation != null) {
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final d = Geolocator.distanceBetween(
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newLoc.latitude,
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newLoc.longitude,
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_lastProcessedLocation!.latitude,
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_lastProcessedLocation!.longitude,
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);
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if (d < _minMoveToProcess) return;
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}
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// Accumulate session distance
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if (_lastDistanceLocation != null) {
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final d = Geolocator.distanceBetween(
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_lastDistanceLocation!.latitude,
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_lastDistanceLocation!.longitude,
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newLoc.latitude,
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newLoc.longitude,
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);
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if (d > 5.0) totalDistance += d;
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}
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_lastDistanceLocation = newLoc;
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myLocation = newLoc;
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_lastProcessedLocation = newLoc;
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heading = position.heading;
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currentSpeed = position.speed * 3.6;
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if (isStyleLoaded) _updateCarMarker();
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if (_fullRouteCoordinates.isNotEmpty) {
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if (_cameraLockedToUser) {
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animateCameraToPosition(myLocation!,
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bearing: heading, zoom: _targetZoom, tilt: _targetTilt);
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}
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_updateTraveledPolylineSmart(myLocation!);
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_checkNavigationStep(myLocation!);
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_recomputeETA();
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}
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update();
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} catch (_) {}
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}
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// ==========================================================================
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// ── Batch tracking: record every 3 s, upload every 2 min ─────────────────
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// ==========================================================================
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void _startBatchTimers() {
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_recordTimer?.cancel();
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_uploadBatchTimer?.cancel();
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_recordTimer = Timer.periodic(_recordInterval, (_) => _recordToBuffer());
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_uploadBatchTimer =
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Timer.periodic(_uploadInterval, (_) => _flushBufferToServer());
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Log.print('📍 Batch tracking started '
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'(record: ${_recordInterval.inSeconds}s, '
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'upload: ${_uploadInterval.inMinutes}min)');
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}
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void _stopBatchTimers() {
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_recordTimer?.cancel();
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_uploadBatchTimer?.cancel();
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_recordTimer = null;
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_uploadBatchTimer = null;
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}
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/// Called every 3 seconds. Adds one point to the buffer if the device
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/// has moved enough OR if 60 s have elapsed since the last record.
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void _recordToBuffer() {
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if (myLocation == null) return;
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if (myLocation!.latitude == 0 && myLocation!.longitude == 0) return;
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final now = DateTime.now();
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// Distance gate
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final distFromLast = _lastBufferedLocation == null
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? 999.0
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: Geolocator.distanceBetween(
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_lastBufferedLocation!.latitude,
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_lastBufferedLocation!.longitude,
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myLocation!.latitude,
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myLocation!.longitude,
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);
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final bool moved = distFromLast > _minMoveToRecord && currentSpeed > 0.5;
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final bool timeForced = _lastBufferedTime == null ||
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now.difference(_lastBufferedTime!).inSeconds >= 60;
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if (!moved && !timeForced) return;
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_lastBufferedLocation = myLocation;
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_lastBufferedTime = now;
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final point = {
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'lat': double.parse(myLocation!.latitude.toStringAsFixed(6)),
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'lng': double.parse(myLocation!.longitude.toStringAsFixed(6)),
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'spd': double.parse(currentSpeed.toStringAsFixed(1)),
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'head': heading.toStringAsFixed(0),
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'dist': double.parse(totalDistance.toStringAsFixed(1)),
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'ts': now.toIso8601String(),
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};
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_trackBuffer.add(point);
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Log.print('📌 Buffered point #${_trackBuffer.length} '
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'(${point['lat']}, ${point['lng']}) ${point['spd']} km/h');
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}
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/// Drains the buffer and POSTs the JSON batch to the server.
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/// Called every 2 minutes (and once more on close).
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Future<void> _flushBufferToServer() async {
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if (_trackBuffer.isEmpty) return;
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final batch = List<Map<String, dynamic>>.from(_trackBuffer);
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_trackBuffer.clear();
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final String passengerId = (box.read(BoxName.passengerID) ?? '').toString();
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Log.print('📤 Uploading ${batch.length} tracking points '
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'for passenger $passengerId...');
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try {
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await CRUD().post(
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link: '${AppLink.locationServerSide}/add_batch.php',
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payload: {
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'driver_id': passengerId,
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'batch_data': jsonEncode(batch),
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'session_dist': totalDistance.toStringAsFixed(1),
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},
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);
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Log.print('✅ Batch uploaded successfully.');
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} catch (e) {
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// Put the points back so they are retried on the next cycle
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_trackBuffer.insertAll(0, batch);
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Log.print('❌ Batch upload failed – points kept for retry: $e');
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}
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}
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// ==========================================================================
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// ── Car marker ────────────────────────────────────────────────────────────
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// ==========================================================================
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Future<void> _updateCarMarker() async {
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if (myLocation == null || mapController == null || !isStyleLoaded) return;
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if (carSymbol == null) {
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carSymbol = await mapController!.addSymbol(SymbolOptions(
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geometry: myLocation,
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iconImage: 'car_icon',
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iconSize: 1.0,
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iconRotate: heading,
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));
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} else {
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mapController!.updateSymbol(
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carSymbol!,
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SymbolOptions(geometry: myLocation, iconRotate: heading),
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);
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}
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}
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// ==========================================================================
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// ── Camera ────────────────────────────────────────────────────────────────
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// ==========================================================================
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void animateCameraToPosition(LatLng position,
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{double? zoom, double bearing = 0.0, double tilt = 0.0}) {
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mapController?.animateCamera(
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CameraUpdate.newCameraPosition(
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CameraPosition(
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target: position,
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zoom: zoom ?? (isNavigating ? _targetZoom : 16.0),
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bearing: bearing,
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tilt: tilt,
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),
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),
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);
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}
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void onUserPanned() {
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_cameraLockedToUser = false;
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update();
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}
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void relockCameraToUser() {
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_cameraLockedToUser = true;
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if (myLocation != null) {
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animateCameraToPosition(myLocation!,
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bearing: heading, zoom: _targetZoom, tilt: _targetTilt);
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}
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update();
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}
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bool get isCameraLocked => _cameraLockedToUser;
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// ==========================================================================
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// ── Route polylines ───────────────────────────────────────────────────────
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// ==========================================================================
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void _updateTraveledPolylineSmart(LatLng currentPos) {
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if (_fullRouteCoordinates.isEmpty) return;
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const int searchWindow = 60;
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final int startIndex = _lastTraveledIndexInFullRoute;
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final int endIndex =
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min(startIndex + searchWindow, _fullRouteCoordinates.length);
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double minDist = double.infinity;
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int closestIdx = startIndex;
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bool foundCloser = false;
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for (int i = startIndex; i < endIndex; i++) {
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final d = Geolocator.distanceBetween(
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currentPos.latitude,
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currentPos.longitude,
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_fullRouteCoordinates[i].latitude,
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_fullRouteCoordinates[i].longitude,
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);
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if (d < minDist) {
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minDist = d;
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closestIdx = i;
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foundCloser = true;
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}
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}
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if (foundCloser &&
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minDist < 50 &&
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closestIdx > _lastTraveledIndexInFullRoute) {
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_lastTraveledIndexInFullRoute = closestIdx;
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_updatePolylinesSets(
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_fullRouteCoordinates.sublist(0, closestIdx + 1),
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_fullRouteCoordinates.sublist(closestIdx),
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);
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}
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}
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Future<void> _updatePolylinesSets(
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List<LatLng> traveled, List<LatLng> remaining) async {
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if (mapController == null || !isStyleLoaded) return;
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if (remainingRouteLine != null)
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await mapController!.removeLine(remainingRouteLine!);
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if (traveledRouteLine != null)
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await mapController!.removeLine(traveledRouteLine!);
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if (remaining.isNotEmpty) {
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remainingRouteLine = await mapController!.addLine(LineOptions(
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geometry: remaining,
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lineColor: '#1A73E8',
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lineWidth: 7.0,
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lineJoin: 'round',
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));
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}
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if (traveled.isNotEmpty) {
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traveledRouteLine = await mapController!.addLine(LineOptions(
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geometry: traveled,
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lineColor: '#BDBDBD',
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lineWidth: 5.0,
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lineJoin: 'round',
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lineOpacity: 0.6,
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));
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}
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}
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// ==========================================================================
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// ── Routing API ───────────────────────────────────────────────────────────
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// ==========================================================================
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Future<void> getRoute(LatLng origin, LatLng destination) async {
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final coords = "${origin.longitude},${origin.latitude};"
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"${destination.longitude},${destination.latitude}";
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final url =
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"$_routeApiBaseUrl/$coords?steps=true&overview=full&geometries=polyline";
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try {
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final response = await http.get(Uri.parse(url));
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if (response.statusCode != 200) {
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mySnackbarWarning('تعذر الاتصال بخدمة التوجيه.');
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return;
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}
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final data = jsonDecode(response.body);
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if (data['code'] != 'Ok' || (data['routes'] as List).isEmpty) {
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mySnackbarWarning('لم يتم العثور على مسار.');
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return;
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}
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final route = data['routes'][0];
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_fullRouteCoordinates = await compute<String, List<LatLng>>(
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decodePolylineIsolate, route['geometry'].toString());
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_lastTraveledIndexInFullRoute = 0;
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if (isStyleLoaded) _updatePolylinesSets([], _fullRouteCoordinates);
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final legs = route['legs'] as List;
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if (legs.isNotEmpty) {
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routeSteps = List<Map<String, dynamic>>.from(legs[0]['steps'] as List);
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_routeTotalDistanceM = (legs[0]['distance'] as num).toDouble();
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_routeTotalDurationS = (legs[0]['duration'] as num).toDouble();
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totalDistanceRemaining = _routeTotalDistanceM > 1000
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? "${(_routeTotalDistanceM / 1000).toStringAsFixed(1)} كم"
|
||
: "${_routeTotalDistanceM.toStringAsFixed(0)} م";
|
||
|
||
final minutes = (_routeTotalDurationS / 60).round();
|
||
estimatedTimeRemaining = minutes > 60
|
||
? "${(minutes / 60).floor()} س ${minutes % 60} د"
|
||
: "$minutes د";
|
||
} else {
|
||
routeSteps = [];
|
||
}
|
||
|
||
for (final step in routeSteps) {
|
||
step['instruction_text'] = _createInstructionFromManeuver(step);
|
||
}
|
||
|
||
currentStepIndex = 0;
|
||
_nextInstructionSpoken = false;
|
||
isNavigating = true;
|
||
_cameraLockedToUser = true;
|
||
|
||
if (routeSteps.isNotEmpty) {
|
||
currentInstruction = routeSteps[0]['instruction_text'];
|
||
nextInstruction = routeSteps.length > 1
|
||
? "ثم ${routeSteps[1]['instruction_text']}"
|
||
: "الوجهة النهائية";
|
||
Get.find<TextToSpeechController>().speakText(currentInstruction);
|
||
}
|
||
|
||
if (_fullRouteCoordinates.isNotEmpty) {
|
||
final bounds = _boundsFromLatLngList(_fullRouteCoordinates);
|
||
mapController?.animateCamera(CameraUpdate.newLatLngBounds(bounds,
|
||
bottom: 220, top: 150, left: 50, right: 50));
|
||
}
|
||
|
||
update();
|
||
} catch (e) {
|
||
Log.print("GetRoute Error: $e");
|
||
}
|
||
}
|
||
|
||
// Crude but fast ETA re-estimate based on fraction of route remaining.
|
||
void _recomputeETA() {
|
||
if (_routeTotalDistanceM == 0 || _fullRouteCoordinates.isEmpty) return;
|
||
|
||
final fraction =
|
||
(_fullRouteCoordinates.length - _lastTraveledIndexInFullRoute) /
|
||
_fullRouteCoordinates.length;
|
||
|
||
final remainingM = _routeTotalDistanceM * fraction;
|
||
final remainingS = _routeTotalDurationS * fraction;
|
||
|
||
totalDistanceRemaining = remainingM > 1000
|
||
? "${(remainingM / 1000).toStringAsFixed(1)} كم"
|
||
: "${remainingM.toStringAsFixed(0)} م";
|
||
|
||
final minutes = (remainingS / 60).round();
|
||
estimatedTimeRemaining = minutes > 60
|
||
? "${(minutes / 60).floor()} س ${minutes % 60} د"
|
||
: "$minutes د";
|
||
}
|
||
|
||
Future<void> startNavigationTo(LatLng destination,
|
||
{String infoWindowTitle = ''}) async {
|
||
isLoading = true;
|
||
update();
|
||
try {
|
||
_finalDestination = destination;
|
||
await clearRoute(isNewRoute: true);
|
||
|
||
if (isStyleLoaded && mapController != null) {
|
||
destinationSymbol = await mapController!.addSymbol(SymbolOptions(
|
||
geometry: destination,
|
||
iconImage: 'dest_icon',
|
||
iconSize: 1.0,
|
||
textField: infoWindowTitle,
|
||
textOffset: const Offset(0, 2),
|
||
));
|
||
}
|
||
|
||
if (myLocation != null) await getRoute(myLocation!, destination);
|
||
} finally {
|
||
isLoading = false;
|
||
update();
|
||
}
|
||
}
|
||
|
||
Future<void> recalculateRoute() async {
|
||
if (myLocation == null || _finalDestination == null || isLoading) return;
|
||
isLoading = true;
|
||
update();
|
||
mySnackbarInfo('جاري حساب مسار جديد...');
|
||
await getRoute(myLocation!, _finalDestination!);
|
||
isLoading = false;
|
||
update();
|
||
}
|
||
|
||
Future<void> clearRoute({bool isNewRoute = false}) async {
|
||
if (!isNewRoute) {
|
||
if (destinationSymbol != null && mapController != null) {
|
||
await mapController!.removeSymbol(destinationSymbol!);
|
||
destinationSymbol = null;
|
||
}
|
||
if (remainingRouteLine != null && mapController != null) {
|
||
await mapController!.removeLine(remainingRouteLine!);
|
||
remainingRouteLine = null;
|
||
}
|
||
if (traveledRouteLine != null && mapController != null) {
|
||
await mapController!.removeLine(traveledRouteLine!);
|
||
traveledRouteLine = null;
|
||
}
|
||
_finalDestination = null;
|
||
isNavigating = false;
|
||
|
||
// Flush whatever is in the buffer when navigation ends
|
||
await _flushBufferToServer();
|
||
}
|
||
routeSteps.clear();
|
||
_fullRouteCoordinates.clear();
|
||
_lastTraveledIndexInFullRoute = 0;
|
||
currentInstruction = "";
|
||
nextInstruction = "";
|
||
distanceToNextStep = "";
|
||
totalDistanceRemaining = "";
|
||
estimatedTimeRemaining = "";
|
||
_routeTotalDistanceM = 0;
|
||
_routeTotalDurationS = 0;
|
||
update();
|
||
}
|
||
|
||
Future<void> _loadCustomIcons() async {
|
||
if (mapController == null) return;
|
||
final carBytes = await rootBundle.load('assets/images/car.png');
|
||
final destBytes = await rootBundle.load('assets/images/b.png');
|
||
await mapController!.addImage('car_icon', carBytes.buffer.asUint8List());
|
||
await mapController!.addImage('dest_icon', destBytes.buffer.asUint8List());
|
||
}
|
||
|
||
// ==========================================================================
|
||
// ── Step tracking & TTS ───────────────────────────────────────────────────
|
||
// ==========================================================================
|
||
|
||
void _checkNavigationStep(LatLng pos) {
|
||
if (routeSteps.isEmpty || currentStepIndex >= routeSteps.length) return;
|
||
|
||
final maneuver = routeSteps[currentStepIndex]['maneuver'];
|
||
final loc = maneuver['location'] as List;
|
||
final endLatLng = LatLng(loc[1] as double, loc[0] as double);
|
||
|
||
final distance = Geolocator.distanceBetween(
|
||
pos.latitude,
|
||
pos.longitude,
|
||
endLatLng.latitude,
|
||
endLatLng.longitude,
|
||
);
|
||
|
||
distanceToNextStep = distance > 1000
|
||
? "${(distance / 1000).toStringAsFixed(1)} كم"
|
||
: "${distance.toStringAsFixed(0)} م";
|
||
|
||
if (distance < 50 &&
|
||
!_nextInstructionSpoken &&
|
||
nextInstruction.isNotEmpty) {
|
||
Get.find<TextToSpeechController>().speakText(nextInstruction);
|
||
_nextInstructionSpoken = true;
|
||
}
|
||
|
||
if (distance < 20) _advanceStep();
|
||
}
|
||
|
||
void _advanceStep() {
|
||
currentStepIndex++;
|
||
if (currentStepIndex < routeSteps.length) {
|
||
currentInstruction = routeSteps[currentStepIndex]['instruction_text'];
|
||
nextInstruction = (currentStepIndex + 1) < routeSteps.length
|
||
? "ثم ${routeSteps[currentStepIndex + 1]['instruction_text']}"
|
||
: "ستصل إلى وجهتك";
|
||
_nextInstructionSpoken = false;
|
||
update();
|
||
} else {
|
||
_finishNavigation();
|
||
}
|
||
}
|
||
|
||
void _finishNavigation() {
|
||
currentInstruction = "لقد وصلت إلى وجهتك";
|
||
nextInstruction = "";
|
||
distanceToNextStep = "";
|
||
isNavigating = false;
|
||
Get.find<TextToSpeechController>().speakText(currentInstruction);
|
||
// Final flush on arrival
|
||
_flushBufferToServer();
|
||
update();
|
||
}
|
||
|
||
String _createInstructionFromManeuver(Map<String, dynamic> step) {
|
||
if (step['maneuver'] == null) return "تابع المسير";
|
||
final type = step['maneuver']['type'] ?? 'continue';
|
||
final modifier = step['maneuver']['modifier'] ?? 'straight';
|
||
final name = step['name'] ?? '';
|
||
|
||
String instruction = type == 'depart'
|
||
? "انطلق"
|
||
: type == 'arrive'
|
||
? "لقد وصلت إلى وجهتك، $name"
|
||
: _getTurnInstruction(modifier);
|
||
|
||
if (name.isNotEmpty && type != 'arrive') instruction += " نحو $name";
|
||
return instruction;
|
||
}
|
||
|
||
String _getTurnInstruction(String modifier) {
|
||
switch (modifier) {
|
||
case 'uturn':
|
||
return "قم بالاستدارة والعودة";
|
||
case 'sharp right':
|
||
return "انعطف يميناً بحدة";
|
||
case 'right':
|
||
return "انعطف يميناً";
|
||
case 'slight right':
|
||
return "انعطف يميناً قليلاً";
|
||
case 'straight':
|
||
return "استمر للأمام";
|
||
case 'slight left':
|
||
return "انعطف يساراً قليلاً";
|
||
case 'left':
|
||
return "انعطف يساراً";
|
||
case 'sharp left':
|
||
return "انعطف يساراً بحدة";
|
||
default:
|
||
return "اتجه";
|
||
}
|
||
}
|
||
|
||
// ==========================================================================
|
||
// ── Search ────────────────────────────────────────────────────────────────
|
||
// ==========================================================================
|
||
|
||
Future<void> getPlaces() async {
|
||
final q = placeDestinationController.text.trim();
|
||
if (q.length < 3) {
|
||
placesDestination = [];
|
||
update();
|
||
return;
|
||
}
|
||
if (myLocation == null) return;
|
||
|
||
final lat = myLocation!.latitude;
|
||
final lng = myLocation!.longitude;
|
||
const radiusKm = 200.0;
|
||
|
||
final payload = {
|
||
'query': q,
|
||
'lat_min': (lat - _kmToLatDelta(radiusKm)).toString(),
|
||
'lat_max': (lat + _kmToLatDelta(radiusKm)).toString(),
|
||
'lng_min': (lng - _kmToLngDelta(radiusKm, lat)).toString(),
|
||
'lng_max': (lng + _kmToLngDelta(radiusKm, lat)).toString(),
|
||
};
|
||
|
||
try {
|
||
final response =
|
||
await CRUD().post(link: AppLink.getPlacesSyria, payload: payload);
|
||
List list;
|
||
if (response is Map && response['status'] == 'success')
|
||
list = List.from(response['message'] as List);
|
||
else if (response is List)
|
||
list = List.from(response);
|
||
else
|
||
return;
|
||
|
||
for (final p in list) {
|
||
final plat = double.tryParse(p['latitude']?.toString() ?? '0') ?? 0.0;
|
||
final plng = double.tryParse(p['longitude']?.toString() ?? '0') ?? 0.0;
|
||
p['distanceKm'] = _haversineKm(lat, lng, plat, plng);
|
||
}
|
||
|
||
list.sort((a, b) =>
|
||
(a['distanceKm'] as double).compareTo(b['distanceKm'] as double));
|
||
placesDestination = list;
|
||
update();
|
||
} catch (e) {
|
||
Log.print('getPlaces error: $e');
|
||
}
|
||
}
|
||
|
||
Future<void> selectDestination(dynamic place) async {
|
||
placeDestinationController.clear();
|
||
placesDestination = [];
|
||
final lat = double.parse(place['latitude'].toString());
|
||
final lng = double.parse(place['longitude'].toString());
|
||
await startNavigationTo(LatLng(lat, lng),
|
||
infoWindowTitle: place['name'] ?? 'وجهة');
|
||
}
|
||
|
||
void onSearchChanged(String query) {
|
||
if (_debounce?.isActive ?? false) _debounce!.cancel();
|
||
_debounce = Timer(const Duration(milliseconds: 700), () => getPlaces());
|
||
}
|
||
|
||
// ==========================================================================
|
||
// ── Geo utils ─────────────────────────────────────────────────────────────
|
||
// ==========================================================================
|
||
|
||
double _haversineKm(double lat1, double lon1, double lat2, double lon2) {
|
||
const R = 6371.0;
|
||
final dLat = (lat2 - lat1) * (pi / 180.0);
|
||
final dLon = (lon2 - lon1) * (pi / 180.0);
|
||
final a = sin(dLat / 2) * sin(dLat / 2) +
|
||
cos(lat1 * pi / 180) *
|
||
cos(lat2 * pi / 180) *
|
||
sin(dLon / 2) *
|
||
sin(dLon / 2);
|
||
return R * 2 * atan2(sqrt(a), sqrt(1 - a));
|
||
}
|
||
|
||
double _kmToLatDelta(double km) => km / 111.32;
|
||
double _kmToLngDelta(double km, double lat) =>
|
||
km / (111.32 * cos(lat * pi / 180));
|
||
|
||
LatLngBounds _boundsFromLatLngList(List<LatLng> list) {
|
||
double? x0, x1, y0, y1;
|
||
for (final ll in list) {
|
||
if (x0 == null) {
|
||
x0 = x1 = ll.latitude;
|
||
y0 = y1 = ll.longitude;
|
||
} else {
|
||
if (ll.latitude > x1!) x1 = ll.latitude;
|
||
if (ll.latitude < x0) x0 = ll.latitude;
|
||
if (ll.longitude > y1!) y1 = ll.longitude;
|
||
if (ll.longitude < y0!) y0 = ll.longitude;
|
||
}
|
||
}
|
||
return LatLngBounds(
|
||
northeast: LatLng(x1!, y1!), southwest: LatLng(x0!, y0!));
|
||
}
|
||
}
|