import '../../../core/api/antlaq_api.dart';
import '../../../core/api/api_client.dart';
import 'models/place_model.dart';
import 'models/route_model.dart';

/// نقطة وصول وحيدة لبيانات الخرائط والبحث الصوتي الذكي عبر الباك إند.
class MapsRepository {
  final AntlaqApi _api;
  final ApiClient? _apiClient;

  MapsRepository(this._api, [this._apiClient]);

  /// بحث صوتي ذكي يمر عبر الباك إند (Gemini AI).
  Future<List<PlaceModel>> voiceSearch(String text, {double? lat, double? lng}) async {
    if (text.trim().isEmpty) return [];
    try {
      if (_apiClient != null) {
        final res = await _apiClient.dio.post('/maps/voice-search', data: {
          'text': text,
          if (lat != null) 'lat': lat,
          if (lng != null) 'lng': lng,
        });
        final list = res.data as List?;
        if (list != null) {
          return list
              .map((e) => PlaceModel.fromJson(e as Map<String, dynamic>))
              .toList();
        }
      }
    } catch (_) {}
    return search(text);
  }

  /// بحث أماكن — يمر عبر GET /api/geocoding/search.
  Future<List<PlaceModel>> search(String query) async {
    if (query.trim().length < 2) return [];
    final items = await _api.search(query);
    return items
        .map((e) => PlaceModel.fromJson(e as Map<String, dynamic>))
        .toList();
  }

  /// تفكيك عنوان عكسي (إحداثيات → نص).
  Future<PlaceModel> reverseGeocode(double lat, double lng) async {
    final j = await _api.reverse(lat, lng);
    final name = (j['name_ar'] ?? j['name'] ?? j['formattedAddress'] ?? '') as String;
    final addr = (j['address'] ?? j['full_address'] ?? j['formattedAddress'] ?? '') as String;
    return PlaceModel.fromJson({
      'name': name,
      'full_address': addr.isNotEmpty ? addr : name,
      'latitude': lat,
      'longitude': lng,
    });
  }

  /// حساب المسار بين نقطتين عبر الباك إند (GET /maps/route).
  Future<RouteModel> getRoute({
    required double fromLat,
    required double fromLng,
    required double toLat,
    required double toLng,
  }) async {
    try {
      if (_apiClient != null) {
        final res = await _apiClient.dio.get('/maps/route', queryParameters: {
          'fromLat': fromLat,
          'fromLng': fromLng,
          'toLat': toLat,
          'toLng': toLng,
        });
        if (res.data != null && res.data is Map<String, dynamic>) {
          return RouteModel.fromJson(res.data as Map<String, dynamic>);
        }
      }
    } catch (_) {}

    final j = await _api.route(
      fromLat: fromLat,
      fromLng: fromLng,
      toLat: toLat,
      toLng: toLng,
    );
    return RouteModel.fromJson(j);
  }
}