659 lines
22 KiB
Dart
659 lines
22 KiB
Dart
import 'dart:async';
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import 'dart:math';
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import 'dart:math' as math;
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import 'package:flutter/material.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:google_maps_flutter/google_maps_flutter.dart';
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import 'package:google_polyline_algorithm/google_polyline_algorithm.dart';
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import 'package:sefer_driver/constant/colors.dart';
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// استخدام نفس مسارات الاستيراد التي قدمتها
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import '../../../constant/api_key.dart';
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import '../../../constant/links.dart';
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import '../../../print.dart';
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import '../../functions/crud.dart';
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import '../../functions/tts.dart';
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class NavigationController extends GetxController {
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// --- متغيرات الحالة العامة ---
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bool isLoading = false;
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GoogleMapController? mapController;
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final TextEditingController placeDestinationController =
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TextEditingController();
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// --- متغيرات الخريطة والموقع ---
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LatLng? myLocation;
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double heading = 0.0;
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final Set<Marker> markers = {};
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final Set<Polyline> polylines = {};
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BitmapDescriptor carIcon = BitmapDescriptor.defaultMarker;
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BitmapDescriptor destinationIcon = BitmapDescriptor.defaultMarker;
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// --- متغيرات النظام الذكي للتحديث ---
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Timer? _locationUpdateTimer; // المؤقت الرئيسي للتحكم في التحديثات
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Duration _currentUpdateInterval =
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const Duration(seconds: 2); // القيمة الافتراضية
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// --- متغيرات البحث عن الأماكن ---
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List<dynamic> placesDestination = [];
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Timer? _debounce;
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// --- متغيرات الملاحة (Navigation) ---
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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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List<List<LatLng>> _stepPolylines = []; // لتخزين نقاط كل خطوة على حدة
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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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double currentSpeed = 0.0;
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String distanceToNextStep = "";
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final List<LatLngBounds> _stepBounds = [];
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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 _loadCustomIcons();
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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(); // إيقاف المؤقت عند إغلاق الصفحة
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mapController?.dispose();
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_debounce?.cancel();
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placeDestinationController.dispose();
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super.onClose();
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}
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// =======================================================================
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// ١. النظام الذكي لتحديد الموقع والتحديث
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// =======================================================================
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Future<void> _getCurrentLocationAndStartUpdates() async {
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try {
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Position 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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animateCameraToPosition(myLocation!);
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// بدء التحديثات باستخدام المؤقت بدلاً من الـ Stream
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_startLocationTimer();
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} catch (e) {
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print("Error getting location: $e");
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}
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}
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// --- تم استبدال الـ Stream بمؤقت للتحكم الكامل ---
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void _startLocationTimer() {
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_locationUpdateTimer?.cancel(); // إلغاء أي مؤقت قديم
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_locationUpdateTimer = Timer.periodic(_currentUpdateInterval, (timer) {
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_updateLocationAndProcess();
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});
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}
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// --- هذه الدالة هي التي تعمل الآن بشكل دوري ---
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Future<void> _updateLocationAndProcess() async {
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try {
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// طلب موقع واحد فقط عند كل مرة يعمل فيها المؤقت
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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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heading = position.heading;
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currentSpeed = position.speed * 3.6;
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_updateCarMarker();
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if (polylines.isNotEmpty && myLocation != null) {
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animateCameraToPosition(
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myLocation!,
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bearing: heading,
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zoom: 18.5,
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);
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_checkNavigationStep(myLocation!);
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}
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update();
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} catch (e) {
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print("Error in _updateLocationAndProcess: $e");
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}
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}
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// --- الدالة المسؤولة عن تغيير سرعة التحديث ديناميكياً ---
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void _adjustUpdateInterval() {
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if (currentStepIndex >= routeSteps.length) return;
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final currentStepDistance =
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routeSteps[currentStepIndex]['distance']['value'];
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// إذا كانت الخطوة الحالية طويلة (شارع سريع > 1.5 كم)
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if (currentStepDistance > 1500) {
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_currentUpdateInterval = const Duration(seconds: 4);
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}
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// إذا كانت الخطوة قصيرة (منعطفات داخل المدينة < 1.5 كم)
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else {
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_currentUpdateInterval = const Duration(seconds: 2);
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}
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// إعادة تشغيل المؤقت بالسرعة الجديدة
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_startLocationTimer();
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}
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// ... باقي دوال إعداد الخريطة ...
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void onMapCreated(GoogleMapController controller) {
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mapController = controller;
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if (myLocation != null) {
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animateCameraToPosition(myLocation!);
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}
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}
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void _updateCarMarker() {
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if (myLocation == null) return;
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markers.removeWhere((m) => m.markerId.value == 'myLocation');
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markers.add(
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Marker(
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markerId: const MarkerId('myLocation'),
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position: myLocation!,
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icon: carIcon,
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rotation: heading,
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anchor: const Offset(0.5, 0.5),
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flat: true,
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),
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);
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}
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void animateCameraToPosition(LatLng position,
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{double zoom = 16.0, double bearing = 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, zoom: zoom, bearing: bearing, tilt: 45.0),
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),
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);
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}
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// =======================================================================
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// ٢. الملاحة والتحقق من الخطوات
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// =======================================================================
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void _checkNavigationStep(LatLng currentPosition) {
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if (routeSteps.isEmpty ||
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currentStepIndex >= routeSteps.length ||
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_finalDestination == null) return;
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_updateTraveledPolyline(currentPosition);
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final step = routeSteps[currentStepIndex];
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final endLatLng =
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LatLng(step['end_location']['lat'], step['end_location']['lng']);
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final distance = Geolocator.distanceBetween(
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currentPosition.latitude,
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currentPosition.longitude,
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endLatLng.latitude,
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endLatLng.longitude,
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);
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distanceToNextStep = (distance > 1000)
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? "${(distance / 1000).toStringAsFixed(1)} كم"
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: "${distance.toStringAsFixed(0)} متر";
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if (distance < 30 &&
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!_nextInstructionSpoken &&
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nextInstruction.isNotEmpty) {
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Get.find<TextToSpeechController>().speakText(nextInstruction);
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_nextInstructionSpoken = true;
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}
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if (distance < 20) {
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_advanceStep();
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}
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}
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void _advanceStep() {
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currentStepIndex++;
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if (currentStepIndex < routeSteps.length) {
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currentInstruction =
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_parseInstruction(routeSteps[currentStepIndex]['html_instructions']);
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nextInstruction = ((currentStepIndex + 1) < routeSteps.length)
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? _parseInstruction(
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routeSteps[currentStepIndex + 1]['html_instructions'])
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: "الوجهة النهائية";
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_nextInstructionSpoken = false;
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// **هنا يتم تعديل سرعة التحديث عند الانتقال لخطوة جديدة**
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_adjustUpdateInterval();
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if (currentStepIndex < _stepBounds.length) {
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mapController?.animateCamera(
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CameraUpdate.newLatLngBounds(_stepBounds[currentStepIndex], 70.0));
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}
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update();
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} else {
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currentInstruction = "لقد وصلت إلى وجهتك.";
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nextInstruction = "";
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distanceToNextStep = "";
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_locationUpdateTimer?.cancel(); // إيقاف التحديثات عند الوصول
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Get.find<TextToSpeechController>().speakText(currentInstruction);
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update();
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}
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}
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// =======================================================================
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// ٣. تحسين خوارزمية البحث ورسم المسار المقطوع
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// =======================================================================
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void _updateTraveledPolyline(LatLng currentPosition) {
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// **التحسين:** البحث فقط في الخطوة الحالية والخطوة التالية
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int searchEndIndex = (currentStepIndex + 1 < _stepPolylines.length)
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? currentStepIndex + 1
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: currentStepIndex;
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int overallClosestIndex = -1;
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double minDistance = double.infinity;
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// البحث في نقاط الخطوة الحالية والتالية فقط
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for (int i = currentStepIndex; i <= searchEndIndex; i++) {
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for (int j = 0; j < _stepPolylines[i].length; j++) {
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final distance = Geolocator.distanceBetween(
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currentPosition.latitude,
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currentPosition.longitude,
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_stepPolylines[i][j].latitude,
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_stepPolylines[i][j].longitude);
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if (distance < minDistance) {
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minDistance = distance;
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// نحتاج إلى حساب الفهرس العام في القائمة الكاملة
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overallClosestIndex = _getOverallIndex(i, j);
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}
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}
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}
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if (overallClosestIndex == -1) return;
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List<LatLng> traveledPoints =
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_fullRouteCoordinates.sublist(0, overallClosestIndex + 1);
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traveledPoints.add(currentPosition);
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List<LatLng> remainingPoints =
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_fullRouteCoordinates.sublist(overallClosestIndex);
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remainingPoints.insert(0, currentPosition);
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polylines.removeWhere((p) => p.polylineId.value == 'traveled_route');
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polylines.add(Polyline(
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polylineId: const PolylineId('traveled_route'),
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points: traveledPoints,
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color: Colors.grey.shade600,
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width: 7,
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));
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polylines.removeWhere((p) => p.polylineId.value == 'remaining_route');
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polylines.add(Polyline(
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polylineId: const PolylineId('remaining_route'),
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points: remainingPoints,
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color: const Color(0xFF4A80F0),
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width: 7,
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));
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}
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// دالة مساعدة لحساب الفهرس العام
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int _getOverallIndex(int stepIndex, int pointInStepIndex) {
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int overallIndex = 0;
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for (int i = 0; i < stepIndex; i++) {
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overallIndex += _stepPolylines[i].length;
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}
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return overallIndex + pointInStepIndex;
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}
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// =======================================================================
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// ٤. دوال مساعدة وتجهيز البيانات
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// =======================================================================
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void _prepareStepData() {
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_stepBounds.clear();
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_stepPolylines.clear();
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if (routeSteps.isEmpty) return;
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for (final step in routeSteps) {
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final pointsString = step['polyline']['points'];
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final List<List<num>> points =
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decodePolyline(pointsString).cast<List<num>>();
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final polylineCoordinates = points
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.map((point) => LatLng(point[0].toDouble(), point[1].toDouble()))
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.toList();
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_stepPolylines.add(polylineCoordinates); // تخزين نقاط الخطوة
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_stepBounds.add(_boundsFromLatLngList(polylineCoordinates));
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}
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}
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// ... باقي دوال الكنترولر بدون تغيير ...
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// (selectDestination, onMapLongPressed, startNavigationTo, getRoute, etc.)
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Future<void> selectDestination(dynamic place) async {
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placeDestinationController.clear();
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placesDestination = [];
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final double lat = double.parse(place['latitude'].toString());
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final double lng = double.parse(place['longitude'].toString());
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final LatLng destination = LatLng(lat, lng);
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await startNavigationTo(destination,
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infoWindowTitle: place['name'] ?? 'وجهة محددة');
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}
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Future<void> onMapLongPressed(LatLng tappedPoint) async {
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Get.dialog(
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AlertDialog(
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title: const Text('بدء الملاحة؟'),
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content: const Text('هل تريد الذهاب إلى هذا الموقع المحدد؟'),
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actionsAlignment: MainAxisAlignment.spaceBetween,
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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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TextButton(
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child: const Text('اذهب الآن'),
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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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Future<void> startNavigationTo(LatLng destination,
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{String infoWindowTitle = ''}) async {
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isLoading = true;
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update();
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try {
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_finalDestination = destination;
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clearRoute(isNewRoute: true);
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markers.add(
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Marker(
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markerId: const MarkerId('destination'),
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position: destination,
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icon: destinationIcon,
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infoWindow: InfoWindow(title: infoWindowTitle),
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),
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);
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await getRoute(myLocation!, destination);
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} catch (e) {
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Get.snackbar('خطأ', 'حدث خطأ أثناء تحديد الوجهة.');
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print("Error starting navigation: $e");
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} finally {
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isLoading = false;
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update();
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}
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}
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Future<void> getRoute(LatLng origin, LatLng destination) async {
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final url =
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'${AppLink.googleMapsLink}directions/json?language=ar&destination=${destination.latitude},${destination.longitude}&origin=${origin.latitude},${origin.longitude}&key=${AK.mapAPIKEY}';
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var response = await CRUD().getGoogleApi(link: url, payload: {});
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if (response == null || response['routes'].isEmpty) {
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Get.snackbar('خطأ', 'لم يتم العثور على مسار.');
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return;
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}
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polylines.clear();
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final pointsString = response['routes'][0]['overview_polyline']['points'];
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final List<List<num>> points =
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decodePolyline(pointsString).cast<List<num>>();
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_fullRouteCoordinates = points
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.map((point) => LatLng(point[0].toDouble(), point[1].toDouble()))
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.toList();
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polylines.add(
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Polyline(
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polylineId: const PolylineId('remaining_route'),
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points: _fullRouteCoordinates,
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color: const Color(0xFF4A80F0),
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width: 7,
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startCap: Cap.roundCap,
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endCap: Cap.roundCap,
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),
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);
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polylines.add(
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const Polyline(
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polylineId: PolylineId('traveled_route'),
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points: [],
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color: Colors.grey,
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width: 7,
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),
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);
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routeSteps = List<Map<String, dynamic>>.from(
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response['routes'][0]['legs'][0]['steps']);
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_prepareStepData();
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currentStepIndex = 0;
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_nextInstructionSpoken = false;
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if (routeSteps.isNotEmpty) {
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currentInstruction =
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_parseInstruction(routeSteps[0]['html_instructions']);
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nextInstruction = (routeSteps.length > 1)
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? _parseInstruction(routeSteps[1]['html_instructions'])
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: "الوجهة النهائية";
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Get.find<TextToSpeechController>().speakText(currentInstruction);
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}
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_adjustUpdateInterval(); // تحديد سرعة التحديث لأول مرة
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final boundsData = response['routes'][0]['bounds'];
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mapController?.animateCamera(CameraUpdate.newLatLngBounds(
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LatLngBounds(
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northeast: LatLng(
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boundsData['northeast']['lat'], boundsData['northeast']['lng']),
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southwest: LatLng(
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boundsData['southwest']['lat'], boundsData['southwest']['lng']),
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),
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100.0,
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));
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}
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Future<void> recalculateRoute() async {
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if (myLocation == null || _finalDestination == null || isLoading) return;
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isLoading = true;
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update();
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Get.snackbar(
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'إعادة التوجيه',
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'جاري حساب مسار جديد من موقعك الحالي...',
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backgroundColor: AppColor.goldenBronze,
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);
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await getRoute(myLocation!, _finalDestination!);
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isLoading = false;
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update();
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}
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void clearRoute({bool isNewRoute = false}) {
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polylines.clear();
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if (!isNewRoute) {
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markers.removeWhere((m) => m.markerId.value == 'destination');
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_finalDestination = null;
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}
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routeSteps.clear();
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currentInstruction = "";
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nextInstruction = "";
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distanceToNextStep = "";
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currentSpeed = 0.0;
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_stepBounds.clear();
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_fullRouteCoordinates.clear();
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_stepPolylines.clear();
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_nextInstructionSpoken = false;
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_locationUpdateTimer?.cancel(); // إيقاف التحديثات عند إلغاء المسار
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update();
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}
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||
LatLngBounds _boundsFromLatLngList(List<LatLng> list) {
|
||
assert(list.isNotEmpty);
|
||
double? x0, x1, y0, y1;
|
||
for (LatLng latLng in list) {
|
||
if (x0 == null) {
|
||
x0 = x1 = latLng.latitude;
|
||
y0 = y1 = latLng.longitude;
|
||
} else {
|
||
if (latLng.latitude > x1!) x1 = latLng.latitude;
|
||
if (latLng.latitude < x0) x0 = latLng.latitude;
|
||
if (latLng.longitude > y1!) y1 = latLng.longitude;
|
||
if (latLng.longitude < y0!) y0 = latLng.longitude;
|
||
}
|
||
}
|
||
return LatLngBounds(
|
||
northeast: LatLng(x1!, y1!), southwest: LatLng(x0!, y0!));
|
||
}
|
||
|
||
Future<void> _loadCustomIcons() async {
|
||
carIcon = await BitmapDescriptor.fromAssetImage(
|
||
const ImageConfiguration(size: Size(40, 40)), 'assets/images/car.png');
|
||
destinationIcon = await BitmapDescriptor.fromAssetImage(
|
||
const ImageConfiguration(size: Size(25, 25)), 'assets/images/b.png');
|
||
}
|
||
|
||
String _parseInstruction(String html) =>
|
||
html.replaceAll(RegExp(r'<[^>]*>'), ' ');
|
||
|
||
double _haversineKm(double lat1, double lon1, double lat2, double lon2) {
|
||
const R = 6371.0; // km
|
||
final dLat = (lat2 - lat1) * math.pi / 180.0;
|
||
final dLon = (lon2 - lon1) * math.pi / 180.0;
|
||
final a = math.sin(dLat / 2) * math.sin(dLat / 2) +
|
||
math.cos(lat1 * math.pi / 180.0) *
|
||
math.cos(lat2 * math.pi / 180.0) *
|
||
math.sin(dLon / 2) *
|
||
math.sin(dLon / 2);
|
||
final c = 2 * math.atan2(math.sqrt(a), math.sqrt(1 - a));
|
||
return R * c;
|
||
}
|
||
|
||
/// تحويل نصف قطر بالكيلومتر إلى دلتا درجات عرض
|
||
double _kmToLatDelta(double km) => km / 111.0;
|
||
|
||
/// تحويل نصف قطر بالكيلومتر إلى دلتا درجات طول (تعتمد على خط العرض)
|
||
double _kmToLngDelta(double km, double atLat) =>
|
||
km / (111.320 * math.cos(atLat * math.pi / 180.0)).abs().clamp(1e-6, 1e9);
|
||
|
||
/// حساب درجة التطابق النصي (كل كلمة تبدأ بها الاسم = 2 نقاط، يحتويها = 1 نقطة)
|
||
double _relevanceScore(String name, String query) {
|
||
final n = name.toLowerCase();
|
||
final parts =
|
||
query.toLowerCase().split(RegExp(r'\s+')).where((p) => p.length >= 2);
|
||
double s = 0.0;
|
||
for (final p in parts) {
|
||
if (n.startsWith(p)) {
|
||
s += 2.0;
|
||
} else if (n.contains(p)) {
|
||
s += 1.0;
|
||
}
|
||
}
|
||
return s;
|
||
}
|
||
|
||
Future<void> getPlaces() async {
|
||
final q = placeDestinationController.text.trim();
|
||
if (q.isEmpty) {
|
||
placesDestination = [];
|
||
update();
|
||
return;
|
||
}
|
||
|
||
final lat = myLocation!.latitude;
|
||
final lng = myLocation!.longitude;
|
||
|
||
// نصف قطر البحث بالكيلومتر (عدّل حسب رغبتك)
|
||
const radiusKm = 200.0;
|
||
|
||
// حساب الباوند الصحيح (درجات، وليس 2.2 درجة ثابتة)
|
||
final latDelta = _kmToLatDelta(radiusKm);
|
||
final lngDelta = _kmToLngDelta(radiusKm, lat);
|
||
|
||
final latMin = lat - latDelta;
|
||
final latMax = lat + latDelta;
|
||
final lngMin = lng - lngDelta;
|
||
final lngMax = lng + lngDelta;
|
||
|
||
try {
|
||
final response = await CRUD().post(
|
||
link: AppLink.getPlacesSyria,
|
||
payload: {
|
||
'query': q,
|
||
'lat_min': latMin.toString(),
|
||
'lat_max': latMax.toString(),
|
||
'lng_min': lngMin.toString(),
|
||
'lng_max': lngMax.toString(),
|
||
},
|
||
);
|
||
|
||
// يدعم شكلي استجابة: إما {"...","message":[...]} أو قائمة مباشرة [...]
|
||
List list;
|
||
if (response is Map && response['message'] is List) {
|
||
list = List.from(response['message'] as List);
|
||
} else if (response is List) {
|
||
list = List.from(response);
|
||
} else {
|
||
print('Unexpected response shape');
|
||
return;
|
||
}
|
||
|
||
// جهّز الحقول المحتملة للأسماء
|
||
String _bestName(Map p) {
|
||
return (p['name'] ?? p['name_ar'] ?? p['name_en'] ?? '').toString();
|
||
}
|
||
|
||
// احسب المسافة ودرجة التطابق والنقاط
|
||
for (final p in list) {
|
||
final plat = double.tryParse(p['latitude']?.toString() ?? '') ?? 0.0;
|
||
final plng = double.tryParse(p['longitude']?.toString() ?? '') ?? 0.0;
|
||
|
||
final d = _haversineKm(lat, lng, plat, plng);
|
||
final rel = _relevanceScore(_bestName(p), q);
|
||
|
||
// معادلة ترتيب ذكية: مسافة أقل + تطابق أعلى = نقاط أعلى
|
||
// تضيف +1 لضمان عدم وصول الوزن للصفر عند عدم وجود تطابق
|
||
final score = (1.0 / (1.0 + d)) * (1.0 + rel);
|
||
|
||
p['distanceKm'] = d;
|
||
p['relevance'] = rel;
|
||
p['score'] = score;
|
||
}
|
||
|
||
// رتّب حسب score تنازليًا، ثم المسافة تصاعديًا كحسم
|
||
list.sort((a, b) {
|
||
final sa = (a['score'] ?? 0.0) as double;
|
||
final sb = (b['score'] ?? 0.0) as double;
|
||
final cmp = sb.compareTo(sa);
|
||
if (cmp != 0) return cmp;
|
||
final da = (a['distanceKm'] ?? 1e9) as double;
|
||
final db = (b['distanceKm'] ?? 1e9) as double;
|
||
return da.compareTo(db);
|
||
});
|
||
|
||
// خذ أول 10–15 للعرض (اختياري)، أو اعرض الكل
|
||
placesDestination = list.take(15).toList();
|
||
Log.print('placesDestination: $placesDestination');
|
||
update();
|
||
} catch (e) {
|
||
print('Exception in getPlaces: $e');
|
||
}
|
||
}
|
||
|
||
void onSearchChanged(String query) {
|
||
if (_debounce?.isActive ?? false) _debounce!.cancel();
|
||
_debounce = Timer(const Duration(milliseconds: 700), () => getPlaces());
|
||
}
|
||
}
|