update address

lib/features/account/presentation/providers/location_provider.dart

@@ -0,0 +1,153 @@
+/// Location Provider
+///
+/// Riverpod providers for cities and wards management.
+library;
+
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:worker/core/database/hive_service.dart';
+import 'package:worker/core/network/dio_client.dart';
+import 'package:worker/features/account/data/datasources/location_local_datasource.dart';
+import 'package:worker/features/account/data/datasources/location_remote_datasource.dart';
+import 'package:worker/features/account/data/repositories/location_repository_impl.dart';
+import 'package:worker/features/account/domain/entities/city.dart';
+import 'package:worker/features/account/domain/entities/ward.dart';
+import 'package:worker/features/account/domain/repositories/location_repository.dart';
+
+part 'location_provider.g.dart';
+
+// ============================================================================
+// DATASOURCE PROVIDERS
+// ============================================================================
+
+/// Provides instance of LocationRemoteDataSource
+@riverpod
+Future<LocationRemoteDataSource> locationRemoteDataSource(Ref ref) async {
+  final dioClient = await ref.watch(dioClientProvider.future);
+  return LocationRemoteDataSource(dioClient.dio);
+}
+
+/// Provides instance of LocationLocalDataSource
+@riverpod
+LocationLocalDataSource locationLocalDataSource(Ref ref) {
+  final hiveService = HiveService();
+  return LocationLocalDataSource(hiveService);
+}
+
+// ============================================================================
+// REPOSITORY PROVIDER
+// ============================================================================
+
+/// Provides instance of LocationRepository
+@riverpod
+Future<LocationRepository> locationRepository(Ref ref) async {
+  final remoteDataSource = await ref.watch(locationRemoteDataSourceProvider.future);
+  final localDataSource = ref.watch(locationLocalDataSourceProvider);
+
+  return LocationRepositoryImpl(
+    remoteDataSource: remoteDataSource,
+    localDataSource: localDataSource,
+  );
+}
+
+// ============================================================================
+// CITIES PROVIDER
+// ============================================================================
+
+/// Manages list of cities with offline-first approach
+///
+/// This is the MAIN provider for cities.
+/// Returns list of City entities (cached → API).
+@Riverpod(keepAlive: true)
+class Cities extends _$Cities {
+  late LocationRepository _repository;
+
+  @override
+  Future<List<City>> build() async {
+    _repository = await ref.read(locationRepositoryProvider.future);
+    return await _loadCities();
+  }
+
+  /// Load cities (offline-first)
+  Future<List<City>> _loadCities({bool forceRefresh = false}) async {
+    try {
+      final cities = await _repository.getCities(forceRefresh: forceRefresh);
+      return cities;
+    } catch (e) {
+      rethrow;
+    }
+  }
+
+  /// Refresh cities from API
+  Future<void> refresh() async {
+    state = const AsyncValue.loading();
+    state = await AsyncValue.guard(() async {
+      return await _loadCities(forceRefresh: true);
+    });
+  }
+}
+
+// ============================================================================
+// WARDS PROVIDER (per city)
+// ============================================================================
+
+/// Manages list of wards for a specific city with offline-first approach
+///
+/// Uses .family modifier to create a provider per city code.
+/// Returns list of Ward entities (cached → API).
+@riverpod
+Future<List<Ward>> wards(Ref ref, String cityCode) async {
+  final repository = await ref.watch(locationRepositoryProvider.future);
+
+  try {
+    final wards = await repository.getWards(cityCode);
+    return wards;
+  } catch (e) {
+    rethrow;
+  }
+}
+
+// ============================================================================
+// HELPER PROVIDERS
+// ============================================================================
+
+/// Get city by code
+@riverpod
+City? cityByCode(Ref ref, String code) {
+  final citiesAsync = ref.watch(citiesProvider);
+
+  return citiesAsync.when(
+    data: (cities) {
+      try {
+        return cities.firstWhere((city) => city.code == code);
+      } catch (e) {
+        return null;
+      }
+    },
+    loading: () => null,
+    error: (_, __) => null,
+  );
+}
+
+/// Get cities as map (code → City) for easy lookup
+@riverpod
+Map<String, City> citiesMap(Ref ref) {
+  final citiesAsync = ref.watch(citiesProvider);
+
+  return citiesAsync.when(
+    data: (cities) => {for (final city in cities) city.code: city},
+    loading: () => {},
+    error: (_, __) => {},
+  );
+}
+
+/// Get wards as map (code → Ward) for a city
+@riverpod
+Map<String, Ward> wardsMap(Ref ref, String cityCode) {
+  final wardsAsync = ref.watch(wardsProvider(cityCode));
+
+  return wardsAsync.when(
+    data: (wards) => {for (final ward in wards) ward.code: ward},
+    loading: () => {},
+    error: (_, __) => {},
+  );
+}