839 lines
27 KiB
Dart
839 lines
27 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'dart:math';
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import 'dart:convert'; // <<<--- إضافة جديدة
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import 'package:flutter/foundation.dart';
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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:http/http.dart' as http; // <<<--- إضافة جديدة
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import 'package:sefer_driver/constant/colors.dart';
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import 'package:sefer_driver/controller/functions/crud.dart';
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import '../../../constant/box_name.dart';
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import '../../../constant/country_polygons.dart';
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import '../../../constant/links.dart';
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import '../../../env/env.dart';
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import '../../../main.dart';
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import '../../../print.dart';
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// import '../../functions/crud.dart'; // <<<--- تم إلغاء الاعتماد عليه
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import '../../functions/tts.dart';
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import 'decode_polyline_isolate.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;
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Duration _currentUpdateInterval = const Duration(seconds: 2);
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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 = [];
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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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// <<<--- [تعديل] ---: متغير جديد لتتبع المسار المقطوع بدقة
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int _lastTraveledIndexInFullRoute = 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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// --- ثوابت الـ API الجديد ---
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static const String _routeApiBaseUrl = 'https://routec.intaleq.xyz/';
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static final String _routeApiKey = Env.mapKeyOsm;
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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();
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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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// Helper function to check if a ray from the point intersects with a polygon segment
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bool _rayIntersectsSegment(LatLng point, LatLng vertex1, LatLng vertex2) {
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double px = point.longitude;
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double py = point.latitude;
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double v1x = vertex1.longitude;
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double v1y = vertex1.latitude;
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double v2x = vertex2.longitude;
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double v2y = vertex2.latitude;
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// Check if the point is outside the vertical bounds of the segment
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if ((py < v1y && py < v2y) || (py > v1y && py > v2y)) {
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return false;
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}
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// Calculate the intersection of the ray and the segment
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double intersectX = v1x + (py - v1y) * (v2x - v1x) / (v2y - v1y);
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// Check if the intersection is to the right of the point
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return intersectX > px;
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}
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// Function to check if the point is inside the polygon
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bool isPointInPolygon(LatLng point, List<LatLng> polygon) {
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int intersections = 0;
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for (int i = 0; i < polygon.length; i++) {
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LatLng vertex1 = polygon[i];
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LatLng vertex2 =
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polygon[(i + 1) % polygon.length]; // Loop back to the start
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if (_rayIntersectsSegment(point, vertex1, vertex2)) {
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intersections++;
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}
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}
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// If the number of intersections is odd, the point is inside
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return intersections % 2 != 0;
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}
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String getLocationArea(double latitude, double longitude) {
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LatLng passengerPoint = LatLng(latitude, longitude);
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// 1. فحص الأردن
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if (isPointInPolygon(passengerPoint, CountryPolygons.jordanBoundary)) {
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box.write(BoxName.countryCode, 'Jordan');
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// يمكنك تعيين AppLink.endPoint هنا إذا كان منطقك الداخلي لا يزال يعتمد عليه
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// box.write(BoxName.serverChosen,
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// AppLink.IntaleqSyriaServer); // مثال: اختر سيرفر سوريا للبيانات
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return 'Jordan';
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}
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// 2. فحص سوريا
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if (isPointInPolygon(passengerPoint, CountryPolygons.syriaBoundary)) {
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box.write(BoxName.countryCode, 'Syria');
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// box.write(BoxName.serverChosen, AppLink.IntaleqSyriaServer);
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return 'Syria';
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}
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// 3. فحص مصر
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if (isPointInPolygon(passengerPoint, CountryPolygons.egyptBoundary)) {
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box.write(BoxName.countryCode, 'Egypt');
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// box.write(BoxName.serverChosen, AppLink.IntaleqAlexandriaServer);
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return 'Egypt';
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}
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// 4. الافتراضي (إذا كان خارج المناطق المخدومة)
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box.write(BoxName.countryCode, 'Jordan');
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// box.write(BoxName.serverChosen, AppLink.IntaleqSyriaServer);
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return 'Unknown Location (Defaulting to Jordan)';
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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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getLocationArea(myLocation!.latitude, myLocation!.longitude);
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update();
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animateCameraToPosition(myLocation!);
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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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void _startLocationTimer() {
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_locationUpdateTimer?.cancel();
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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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Future<void> _updateLocationAndProcess() 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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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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void _adjustUpdateInterval() {
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if (currentStepIndex >= routeSteps.length) return;
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final currentStepDistance = routeSteps[currentStepIndex]['distance'];
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if (currentStepDistance > 1500) {
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_currentUpdateInterval = const Duration(seconds: 4);
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} else {
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_currentUpdateInterval = const Duration(seconds: 2);
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}
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_startLocationTimer();
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}
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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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// <<<--- [تعديل] ---: استدعاء الدالة الجديدة والمحسنة
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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 = routeSteps[currentStepIndex]['instruction_text'];
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nextInstruction = ((currentStepIndex + 1) < routeSteps.length)
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? routeSteps[currentStepIndex + 1]['instruction_text']
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: "الوجهة النهائية";
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_nextInstructionSpoken = false;
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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();
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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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// <<<--- [تعديل] ---: تم إعادة كتابة الدالة بالكامل
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void _updateTraveledPolyline(LatLng currentPosition) {
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// 1. التأكد من أن المسار الكامل محمل
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if (_fullRouteCoordinates.isEmpty) return;
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double minDistance = double.infinity;
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// 2. ابدأ البحث دائماً من النقطة الأخيرة التي تم الوصول إليها
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int newClosestIndex = _lastTraveledIndexInFullRoute;
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// 3. ابحث للأمام فقط (من آخر نقطة مسجلة إلى نهاية المسار)
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for (int i = _lastTraveledIndexInFullRoute;
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i < _fullRouteCoordinates.length;
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i++) {
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final point = _fullRouteCoordinates[i];
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final distance = Geolocator.distanceBetween(
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currentPosition.latitude,
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currentPosition.longitude,
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point.latitude,
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point.longitude,
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);
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if (distance < minDistance) {
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minDistance = distance;
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newClosestIndex = i;
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} else if (distance > minDistance + 50) {
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// 4. تحسين: إذا بدأت المسافة بالزيادة، فتوقف عن البحث
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// هذا يعني أننا تجاوزنا أقرب نقطة (50 متر هامش أمان)
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break;
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}
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}
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// 5. قم بتحديث آخر نقطة مسجلة
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_lastTraveledIndexInFullRoute = newClosestIndex;
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// 6. ارسم المسار المقطوع (من البداية إلى أقرب نقطة)
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List<LatLng> traveledPoints =
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_fullRouteCoordinates.sublist(0, newClosestIndex + 1);
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traveledPoints.add(currentPosition); // أضف الموقع الحالي لنعومة الخط
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// 7. ارسم المسار المتبقي (من أقرب نقطة إلى النهاية)
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List<LatLng> remainingPoints =
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_fullRouteCoordinates.sublist(newClosestIndex);
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remainingPoints.insert(0, currentPosition); // ابدأ من الموقع الحالي
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// 8. تحديث الخطوط على الخريطة
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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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// <<<--- [إلغاء] ---: لم نعد بحاجة لهذه الدالة المعقدة
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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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Future<void> _prepareStepData() async {
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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['geometry'];
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final List<LatLng> polylineCoordinates = await compute(
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decodePolylineIsolate as ComputeCallback<dynamic, List<LatLng>>,
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pointsString);
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_stepPolylines.add(polylineCoordinates);
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_stepBounds.add(_boundsFromLatLngList(polylineCoordinates));
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}
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}
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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: $e");
|
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} finally {
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isLoading = false;
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update();
|
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}
|
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}
|
||
|
||
// --- (تعديل) ---: تم تعديل الدالة لاستخدام http.get
|
||
Future<void> getRoute(LatLng origin, LatLng destination) async {
|
||
final url =
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'$_routeApiBaseUrl/route?origin=${origin.latitude},${origin.longitude}&destination=${destination.latitude},${destination.longitude}&steps=true&overview=full';
|
||
|
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try {
|
||
final response = await http.get(
|
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Uri.parse(url),
|
||
headers: {'X-API-KEY': _routeApiKey},
|
||
);
|
||
|
||
if (response.statusCode != 200) {
|
||
print("Error from route API: ${response.statusCode}");
|
||
Get.snackbar('خطأ', 'لم يتم العثور على مسار.');
|
||
return;
|
||
}
|
||
|
||
final responseData = jsonDecode(response.body);
|
||
|
||
if (responseData == null || responseData['status'] != 'ok') {
|
||
Get.snackbar('خطأ', 'لم يتم العثور على مسار.');
|
||
return;
|
||
}
|
||
|
||
polylines.clear();
|
||
final pointsString = responseData['polyline'];
|
||
|
||
_fullRouteCoordinates = await compute(
|
||
decodePolylineIsolate as ComputeCallback<dynamic, List<LatLng>>,
|
||
pointsString);
|
||
|
||
// <<<--- [تعديل] ---: تصفير الـ index عند بدء مسار جديد
|
||
_lastTraveledIndexInFullRoute = 0;
|
||
|
||
polylines.add(
|
||
Polyline(
|
||
polylineId: const PolylineId('remaining_route'),
|
||
points: _fullRouteCoordinates,
|
||
color: const Color(0xFF4A80F0),
|
||
width: 7,
|
||
startCap: Cap.roundCap,
|
||
endCap: Cap.roundCap,
|
||
),
|
||
);
|
||
polylines.add(
|
||
const Polyline(
|
||
polylineId: PolylineId('traveled_route'),
|
||
points: [],
|
||
color: Colors.grey,
|
||
width: 7,
|
||
),
|
||
);
|
||
|
||
routeSteps = List<Map<String, dynamic>>.from(responseData['steps']);
|
||
await _prepareStepData();
|
||
|
||
for (int i = 0; i < routeSteps.length; i++) {
|
||
var step = routeSteps[i];
|
||
if (i < _stepPolylines.length && _stepPolylines[i].isNotEmpty) {
|
||
LatLng endLocation = _stepPolylines[i].last;
|
||
step['end_location'] = {
|
||
'lat': endLocation.latitude,
|
||
'lng': endLocation.longitude
|
||
};
|
||
} else {
|
||
var loc = step['maneuver']['location']; // [lng, lat]
|
||
step['end_location'] = {'lat': loc[1], 'lng': loc[0]};
|
||
}
|
||
step['instruction_text'] = _createInstructionFromManeuver(step);
|
||
}
|
||
|
||
currentStepIndex = 0;
|
||
_nextInstructionSpoken = false;
|
||
if (routeSteps.isNotEmpty) {
|
||
currentInstruction = routeSteps[0]['instruction_text'];
|
||
nextInstruction = (routeSteps.length > 1)
|
||
? routeSteps[1]['instruction_text']
|
||
: "الوجهة النهائية";
|
||
Get.find<TextToSpeechController>().speakText(currentInstruction);
|
||
}
|
||
_adjustUpdateInterval();
|
||
|
||
if (_fullRouteCoordinates.isNotEmpty) {
|
||
final bounds = _boundsFromLatLngList(_fullRouteCoordinates);
|
||
mapController
|
||
?.animateCamera(CameraUpdate.newLatLngBounds(bounds, 100.0));
|
||
}
|
||
} catch (e) {
|
||
print("Exception in getRoute: $e");
|
||
Get.snackbar('خطأ', 'حدث خطأ في الشبكة.');
|
||
}
|
||
}
|
||
|
||
Future<void> recalculateRoute() async {
|
||
if (myLocation == null || _finalDestination == null || isLoading) return;
|
||
|
||
isLoading = true;
|
||
update();
|
||
|
||
Get.snackbar(
|
||
'إعادة التوجيه',
|
||
'جاري حساب مسار جديد من موقعك الحالي...',
|
||
backgroundColor: AppColor.goldenBronze,
|
||
);
|
||
await getRoute(myLocation!, _finalDestination!);
|
||
|
||
isLoading = false;
|
||
update();
|
||
}
|
||
|
||
void clearRoute({bool isNewRoute = false}) {
|
||
polylines.clear();
|
||
if (!isNewRoute) {
|
||
markers.removeWhere((m) => m.markerId.value == 'destination');
|
||
_finalDestination = null;
|
||
}
|
||
routeSteps.clear();
|
||
currentInstruction = "";
|
||
nextInstruction = "";
|
||
distanceToNextStep = "";
|
||
currentSpeed = 0.0;
|
||
_stepBounds.clear();
|
||
_fullRouteCoordinates.clear();
|
||
_stepPolylines.clear();
|
||
_nextInstructionSpoken = false;
|
||
_locationUpdateTimer?.cancel();
|
||
|
||
// <<<--- [تعديل] ---: تصفير الـ index عند إلغاء المسار
|
||
_lastTraveledIndexInFullRoute = 0;
|
||
update();
|
||
}
|
||
|
||
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 _createInstructionFromManeuver(Map<String, dynamic> step) {
|
||
final maneuver = step['maneuver'];
|
||
final type = maneuver['type'] ?? 'continue';
|
||
final modifier = maneuver['modifier'] ?? 'straight';
|
||
final name = step['name'] ?? '';
|
||
|
||
String instruction = "";
|
||
|
||
switch (type) {
|
||
case 'depart':
|
||
instruction = "انطلق";
|
||
break;
|
||
case 'arrive':
|
||
instruction = "لقد وصلت إلى وجهتك";
|
||
if (name.isNotEmpty) instruction += "، $name";
|
||
return instruction;
|
||
case 'turn':
|
||
case 'fork':
|
||
case 'off ramp':
|
||
case 'on ramp':
|
||
case 'roundabout':
|
||
instruction = _getTurnInstruction(modifier);
|
||
break;
|
||
case 'continue':
|
||
instruction = "استمر";
|
||
break;
|
||
default:
|
||
instruction = "اتجه";
|
||
}
|
||
|
||
if (name.isNotEmpty) {
|
||
if (instruction == "استمر") {
|
||
instruction += " على $name";
|
||
} else {
|
||
instruction += " إلى $name";
|
||
}
|
||
} else if (type == 'continue' && modifier == 'straight') {
|
||
instruction = "استمر بشكل مستقيم";
|
||
}
|
||
|
||
return instruction;
|
||
}
|
||
|
||
String _getTurnInstruction(String modifier) {
|
||
switch (modifier) {
|
||
case 'uturn':
|
||
return "قم بالاستدارة والعودة";
|
||
case 'sharp right':
|
||
return "انعطف يمينًا بحدة";
|
||
case 'right':
|
||
return "انعطف يمينًا";
|
||
case 'slight right':
|
||
return "انعطف يمينًا قليلاً";
|
||
case 'straight':
|
||
return "استمر بشكل مستقيم";
|
||
case 'slight left':
|
||
return "انعطف يسارًا قليلاً";
|
||
case 'left':
|
||
return "انعطف يسارًا";
|
||
case 'sharp left':
|
||
return "انعطف يسارًا بحدة";
|
||
default:
|
||
return "اتجه";
|
||
}
|
||
}
|
||
|
||
// =======================================================================
|
||
// ٥. دالة البحث عن الأماكن المحدثة والدوال المساعدة لها
|
||
// =======================================================================
|
||
|
||
// --- (تعديل) ---: تم تعديل الدالة لاستخدام http.post
|
||
Future<void> getPlaces() async {
|
||
final q = placeDestinationController.text.trim();
|
||
if (q.isEmpty || q.length < 3) {
|
||
placesDestination = [];
|
||
update();
|
||
return;
|
||
}
|
||
|
||
if (myLocation == null) {
|
||
print('myLocation is null, cannot search for places.');
|
||
return;
|
||
}
|
||
|
||
final lat = myLocation!.latitude;
|
||
final lng = myLocation!.longitude;
|
||
const radiusKm = 200.0;
|
||
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;
|
||
|
||
// تجهيز البيانات لإرسالها كـ JSON
|
||
final payload = {
|
||
'query': q,
|
||
'lat_min': latMin.toString(),
|
||
'lat_max': latMax.toString(),
|
||
'lng_min': lngMin.toString(),
|
||
'lng_max': lngMax.toString(),
|
||
};
|
||
|
||
try {
|
||
final response =
|
||
await CRUD().post(link: AppLink.getPlacesSyria, payload: payload);
|
||
// إرسال البيانات كـ JSON
|
||
|
||
final responseData = (response);
|
||
|
||
List list;
|
||
if (responseData is Map) {
|
||
if (responseData['status'] == 'success' &&
|
||
responseData['message'] is List) {
|
||
list = List.from(responseData['message'] as List);
|
||
} else if (responseData['status'] == 'failure') {
|
||
print('Server Error: ${responseData['message']}');
|
||
return;
|
||
} else {
|
||
print('Unexpected Map shape from server');
|
||
return;
|
||
}
|
||
} else if (responseData is List) {
|
||
list = List.from(responseData);
|
||
} else {
|
||
print('Unexpected response shape from server');
|
||
return;
|
||
}
|
||
|
||
String _bestName(Map p) {
|
||
return (p['name_ar'] ?? p['name'] ?? p['name_en'] ?? '').toString();
|
||
}
|
||
|
||
for (final p in list) {
|
||
final plat = double.tryParse(p['latitude']?.toString() ?? '0.0') ?? 0.0;
|
||
final plng =
|
||
double.tryParse(p['longitude']?.toString() ?? '0.0') ?? 0.0;
|
||
|
||
final distance = _haversineKm(lat, lng, plat, plng);
|
||
final relevance = _relevanceScore(_bestName(p), q);
|
||
final score = (1.0 / (1.0 + distance)) * (1.0 + relevance);
|
||
|
||
p['distanceKm'] = distance;
|
||
p['relevance'] = relevance;
|
||
p['score'] = score;
|
||
}
|
||
|
||
list.sort((a, b) {
|
||
final sa = (a['score'] ?? 0.0) as double;
|
||
final sb = (b['score'] ?? 0.0) as double;
|
||
return sb.compareTo(sa);
|
||
});
|
||
|
||
placesDestination = list;
|
||
Log.print('Updated places: $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());
|
||
}
|
||
|
||
// -----------------------------------------------------------------
|
||
// --== دوال مساعدة (محدثة) ==--
|
||
// -----------------------------------------------------------------
|
||
|
||
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 rLat1 = lat1 * (pi / 180.0);
|
||
final rLat2 = lat2 * (pi / 180.0);
|
||
|
||
final a = sin(dLat / 2) * sin(dLat / 2) +
|
||
cos(rLat1) * cos(rLat2) * sin(dLon / 2) * sin(dLon / 2);
|
||
final c = 2 * atan2(sqrt(a), sqrt(1 - a));
|
||
return R * c;
|
||
}
|
||
|
||
double _relevanceScore(String placeName, String query) {
|
||
if (placeName.isEmpty || query.isEmpty) return 0.0;
|
||
final pLower = placeName.toLowerCase();
|
||
final qLower = query.toLowerCase();
|
||
if (pLower.startsWith(qLower)) return 1.0;
|
||
if (pLower.contains(qLower)) return 0.5;
|
||
return 0.0;
|
||
}
|
||
|
||
double _kmToLatDelta(double km) {
|
||
const kmInDegree = 111.32;
|
||
return km / kmInDegree;
|
||
}
|
||
|
||
double _kmToLngDelta(double km, double latitude) {
|
||
const kmInDegree = 111.32;
|
||
return km / (kmInDegree * cos(latitude * (pi / 180.0)));
|
||
}
|
||
}
|