update products

lib/core/providers/dio_client_provider.dart

@@ -0,0 +1,10 @@
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import '../network/dio_client.dart';
+
+part 'dio_client_provider.g.dart';
+
+/// Provider for DioClient singleton
+@Riverpod(keepAlive: true)
+DioClient dioClient(Ref ref) {
+  return DioClient();
+}

lib/core/providers/dio_client_provider.g.dart

@@ -0,0 +1,55 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'dio_client_provider.dart';
+
+// **************************************************************************
+// RiverpodGenerator
+// **************************************************************************
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint, type=warning
+/// Provider for DioClient singleton
+
+@ProviderFor(dioClient)
+const dioClientProvider = DioClientProvider._();
+
+/// Provider for DioClient singleton
+
+final class DioClientProvider
+    extends $FunctionalProvider<DioClient, DioClient, DioClient>
+    with $Provider<DioClient> {
+  /// Provider for DioClient singleton
+  const DioClientProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'dioClientProvider',
+        isAutoDispose: false,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$dioClientHash();
+
+  @$internal
+  @override
+  $ProviderElement<DioClient> $createElement($ProviderPointer pointer) =>
+      $ProviderElement(pointer);
+
+  @override
+  DioClient create(Ref ref) {
+    return dioClient(ref);
+  }
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(DioClient value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<DioClient>(value),
+    );
+  }
+}
+
+String _$dioClientHash() => r'895f0dc2f8d5eab562ad65390e5c6d4a1f722b0d';

lib/core/providers/providers.dart

@@ -1,3 +1,4 @@
 /// Export all core providers
 export 'network_info_provider.dart';
 export 'sync_status_provider.dart';
+export 'dio_client_provider.dart';

lib/core/widgets/empty_state.dart

@@ -27,7 +27,7 @@ class EmptyState extends StatelessWidget {
           children: [
             Icon(
               icon ?? Icons.inbox_outlined,
-              size: 80,
+              size: 50,
               color: Theme.of(context).colorScheme.outline,
             ),
             const SizedBox(height: 24),

lib/features/auth/presentation/providers/auth_provider.g.dart

@@ -234,7 +234,7 @@ final class AuthProvider extends $NotifierProvider<Auth, AuthState> {
   }
 }
 
-String _$authHash() => r'4b053a7691f573316a8957577dd27a3ed73d89be';
+String _$authHash() => r'73c9e7b70799eba2904eb6fc65454332d4146a33';
 
 /// Auth state notifier provider
 

lib/features/products/data/datasources/product_remote_datasource.dart

@@ -1,12 +1,19 @@
 import '../models/product_model.dart';
 import '../../../../core/network/dio_client.dart';
 import '../../../../core/constants/api_constants.dart';
+import '../../../../core/errors/exceptions.dart';
 
 /// Product remote data source using API
 abstract class ProductRemoteDataSource {
-  Future<List<ProductModel>> getAllProducts();
+  Future<List<ProductModel>> getAllProducts({
+    int page = 1,
+    int limit = 20,
+    String? categoryId,
+    String? search,
+  });
   Future<ProductModel> getProductById(String id);
-  Future<List<ProductModel>> searchProducts(String query);
+  Future<List<ProductModel>> searchProducts(String query, {int page = 1, int limit = 20});
+  Future<List<ProductModel>> getProductsByCategory(String categoryId, {int page = 1, int limit = 20});
 }
 
 class ProductRemoteDataSourceImpl implements ProductRemoteDataSource {
@@ -15,25 +22,107 @@ class ProductRemoteDataSourceImpl implements ProductRemoteDataSource {
   ProductRemoteDataSourceImpl(this.client);
 
   @override
-  Future<List<ProductModel>> getAllProducts() async {
+  Future<List<ProductModel>> getAllProducts({
-    final response = await client.get(ApiConstants.products);
+    int page = 1,
-    final List<dynamic> data = response.data['products'] ?? [];
+    int limit = 20,
+    String? categoryId,
+    String? search,
+  }) async {
+    try {
+      final queryParams = <String, dynamic>{
+        'page': page,
+        'limit': limit,
+      };
+
+      if (categoryId != null) {
+        queryParams['categoryId'] = categoryId;
+      }
+
+      if (search != null && search.isNotEmpty) {
+        queryParams['search'] = search;
+      }
+
+      final response = await client.get(
+        ApiConstants.products,
+        queryParameters: queryParams,
+      );
+
+      // API returns: { success: true, data: [...products...], meta: {...} }
+      if (response.data['success'] == true) {
+        final List<dynamic> data = response.data['data'] ?? [];
         return data.map((json) => ProductModel.fromJson(json)).toList();
+      } else {
+        throw ServerException(response.data['message'] ?? 'Failed to fetch products');
+      }
+    } catch (e) {
+      if (e is ServerException) rethrow;
+      throw ServerException('Failed to fetch products: $e');
+    }
   }
 
   @override
   Future<ProductModel> getProductById(String id) async {
+    try {
       final response = await client.get(ApiConstants.productById(id));
-    return ProductModel.fromJson(response.data);
+
+      // API returns: { success: true, data: {...product...} }
+      if (response.data['success'] == true) {
+        return ProductModel.fromJson(response.data['data']);
+      } else {
+        throw ServerException(response.data['message'] ?? 'Product not found');
+      }
+    } catch (e) {
+      if (e is ServerException) rethrow;
+      throw ServerException('Failed to fetch product: $e');
+    }
   }
 
   @override
-  Future<List<ProductModel>> searchProducts(String query) async {
+  Future<List<ProductModel>> searchProducts(String query, {int page = 1, int limit = 20}) async {
+    try {
       final response = await client.get(
         ApiConstants.searchProducts,
-      queryParameters: {'q': query},
+        queryParameters: {
+          'q': query,
+          'page': page,
+          'limit': limit,
+        },
       );
-    final List<dynamic> data = response.data['products'] ?? [];
+
+      // API returns: { success: true, data: [...products...], meta: {...} }
+      if (response.data['success'] == true) {
+        final List<dynamic> data = response.data['data'] ?? [];
         return data.map((json) => ProductModel.fromJson(json)).toList();
+      } else {
+        throw ServerException(response.data['message'] ?? 'Failed to search products');
+      }
+    } catch (e) {
+      if (e is ServerException) rethrow;
+      throw ServerException('Failed to search products: $e');
+    }
+  }
+
+  @override
+  Future<List<ProductModel>> getProductsByCategory(String categoryId, {int page = 1, int limit = 20}) async {
+    try {
+      final response = await client.get(
+        ApiConstants.productsByCategory(categoryId),
+        queryParameters: {
+          'page': page,
+          'limit': limit,
+        },
+      );
+
+      // API returns: { success: true, data: [...products...], meta: {...} }
+      if (response.data['success'] == true) {
+        final List<dynamic> data = response.data['data'] ?? [];
+        return data.map((json) => ProductModel.fromJson(json)).toList();
+      } else {
+        throw ServerException(response.data['message'] ?? 'Failed to fetch products by category');
+      }
+    } catch (e) {
+      if (e is ServerException) rethrow;
+      throw ServerException('Failed to fetch products by category: $e');
+    }
   }
 }

lib/features/products/data/models/product_model.dart

@@ -86,12 +86,12 @@ class ProductModel extends HiveObject {
     return ProductModel(
       id: json['id'] as String,
       name: json['name'] as String,
-      description: json['description'] as String,
+      description: json['description'] as String? ?? '',
       price: (json['price'] as num).toDouble(),
       imageUrl: json['imageUrl'] as String?,
       categoryId: json['categoryId'] as String,
-      stockQuantity: json['stockQuantity'] as int,
+      stockQuantity: json['stockQuantity'] as int? ?? 0,
-      isAvailable: json['isAvailable'] as bool,
+      isAvailable: json['isAvailable'] as bool? ?? true,
       createdAt: DateTime.parse(json['createdAt'] as String),
       updatedAt: DateTime.parse(json['updatedAt'] as String),
     );

lib/features/products/data/providers/product_providers.dart

@@ -0,0 +1,43 @@
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:hive_ce/hive.dart';
+import '../datasources/product_local_datasource.dart';
+import '../datasources/product_remote_datasource.dart';
+import '../repositories/product_repository_impl.dart';
+import '../models/product_model.dart';
+import '../../domain/repositories/product_repository.dart';
+import '../../../../core/providers/providers.dart';
+import '../../../../core/constants/storage_constants.dart';
+
+part 'product_providers.g.dart';
+
+/// Provider for product Hive box
+@riverpod
+Box<ProductModel> productBox(Ref ref) {
+  return Hive.box<ProductModel>(StorageConstants.productsBox);
+}
+
+/// Provider for product local data source
+@riverpod
+ProductLocalDataSource productLocalDataSource(Ref ref) {
+  final box = ref.watch(productBoxProvider);
+  return ProductLocalDataSourceImpl(box);
+}
+
+/// Provider for product remote data source
+@riverpod
+ProductRemoteDataSource productRemoteDataSource(Ref ref) {
+  final dioClient = ref.watch(dioClientProvider);
+  return ProductRemoteDataSourceImpl(dioClient);
+}
+
+/// Provider for product repository
+@riverpod
+ProductRepository productRepository(Ref ref) {
+  final localDataSource = ref.watch(productLocalDataSourceProvider);
+  final remoteDataSource = ref.watch(productRemoteDataSourceProvider);
+
+  return ProductRepositoryImpl(
+    localDataSource: localDataSource,
+    remoteDataSource: remoteDataSource,
+  );
+}

lib/features/products/data/providers/product_providers.g.dart

@@ -0,0 +1,219 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'product_providers.dart';
+
+// **************************************************************************
+// RiverpodGenerator
+// **************************************************************************
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint, type=warning
+/// Provider for product Hive box
+
+@ProviderFor(productBox)
+const productBoxProvider = ProductBoxProvider._();
+
+/// Provider for product Hive box
+
+final class ProductBoxProvider
+    extends
+        $FunctionalProvider<
+          Box<ProductModel>,
+          Box<ProductModel>,
+          Box<ProductModel>
+        >
+    with $Provider<Box<ProductModel>> {
+  /// Provider for product Hive box
+  const ProductBoxProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'productBoxProvider',
+        isAutoDispose: true,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$productBoxHash();
+
+  @$internal
+  @override
+  $ProviderElement<Box<ProductModel>> $createElement(
+    $ProviderPointer pointer,
+  ) => $ProviderElement(pointer);
+
+  @override
+  Box<ProductModel> create(Ref ref) {
+    return productBox(ref);
+  }
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(Box<ProductModel> value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<Box<ProductModel>>(value),
+    );
+  }
+}
+
+String _$productBoxHash() => r'68cd21ea28cfc716f34daef17849a0393cdb2b80';
+
+/// Provider for product local data source
+
+@ProviderFor(productLocalDataSource)
+const productLocalDataSourceProvider = ProductLocalDataSourceProvider._();
+
+/// Provider for product local data source
+
+final class ProductLocalDataSourceProvider
+    extends
+        $FunctionalProvider<
+          ProductLocalDataSource,
+          ProductLocalDataSource,
+          ProductLocalDataSource
+        >
+    with $Provider<ProductLocalDataSource> {
+  /// Provider for product local data source
+  const ProductLocalDataSourceProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'productLocalDataSourceProvider',
+        isAutoDispose: true,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$productLocalDataSourceHash();
+
+  @$internal
+  @override
+  $ProviderElement<ProductLocalDataSource> $createElement(
+    $ProviderPointer pointer,
+  ) => $ProviderElement(pointer);
+
+  @override
+  ProductLocalDataSource create(Ref ref) {
+    return productLocalDataSource(ref);
+  }
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(ProductLocalDataSource value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<ProductLocalDataSource>(value),
+    );
+  }
+}
+
+String _$productLocalDataSourceHash() =>
+    r'ef4673055777e8dc8a8419a80548b319789d99f9';
+
+/// Provider for product remote data source
+
+@ProviderFor(productRemoteDataSource)
+const productRemoteDataSourceProvider = ProductRemoteDataSourceProvider._();
+
+/// Provider for product remote data source
+
+final class ProductRemoteDataSourceProvider
+    extends
+        $FunctionalProvider<
+          ProductRemoteDataSource,
+          ProductRemoteDataSource,
+          ProductRemoteDataSource
+        >
+    with $Provider<ProductRemoteDataSource> {
+  /// Provider for product remote data source
+  const ProductRemoteDataSourceProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'productRemoteDataSourceProvider',
+        isAutoDispose: true,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$productRemoteDataSourceHash();
+
+  @$internal
+  @override
+  $ProviderElement<ProductRemoteDataSource> $createElement(
+    $ProviderPointer pointer,
+  ) => $ProviderElement(pointer);
+
+  @override
+  ProductRemoteDataSource create(Ref ref) {
+    return productRemoteDataSource(ref);
+  }
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(ProductRemoteDataSource value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<ProductRemoteDataSource>(value),
+    );
+  }
+}
+
+String _$productRemoteDataSourceHash() =>
+    r'954798907bb0c9baade27b84eaba612a5dec8f68';
+
+/// Provider for product repository
+
+@ProviderFor(productRepository)
+const productRepositoryProvider = ProductRepositoryProvider._();
+
+/// Provider for product repository
+
+final class ProductRepositoryProvider
+    extends
+        $FunctionalProvider<
+          ProductRepository,
+          ProductRepository,
+          ProductRepository
+        >
+    with $Provider<ProductRepository> {
+  /// Provider for product repository
+  const ProductRepositoryProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'productRepositoryProvider',
+        isAutoDispose: true,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$productRepositoryHash();
+
+  @$internal
+  @override
+  $ProviderElement<ProductRepository> $createElement(
+    $ProviderPointer pointer,
+  ) => $ProviderElement(pointer);
+
+  @override
+  ProductRepository create(Ref ref) {
+    return productRepository(ref);
+  }
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(ProductRepository value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<ProductRepository>(value),
+    );
+  }
+}
+
+String _$productRepositoryHash() => r'7c5c5b274ce459add6449c29be822ea04503d3dc';

lib/features/products/presentation/pages/products_page.dart

@@ -25,6 +25,13 @@ class _ProductsPageState extends ConsumerState<ProductsPage> {
     final selectedCategory = ref.watch(product_providers.selectedCategoryProvider);
     final productsAsync = ref.watch(productsProvider);
 
+    // Debug: Log product loading state
+    productsAsync.whenOrNull(
+      data: (products) => debugPrint('Products loaded: ${products.length} items'),
+      loading: () => debugPrint('Products loading...'),
+      error: (error, stack) => debugPrint('Products error: $error'),
+    );
+
     // Get filtered products from the provider
     final filteredProducts = productsAsync.when(
       data: (products) => products,
@@ -168,9 +175,11 @@ class _ProductsPageState extends ConsumerState<ProductsPage> {
           ),
         ),
       ),
-      body: RefreshIndicator(
+      body: productsAsync.when(
+        data: (products) => RefreshIndicator(
           onRefresh: () async {
-          await ref.refresh(productsProvider.future);
+            // Force sync with API
+            await ref.read(productsProvider.notifier).syncProducts();
             await ref.refresh(categoriesProvider.future);
           },
           child: Column(
@@ -195,6 +204,23 @@ class _ProductsPageState extends ConsumerState<ProductsPage> {
           ],
         ),
         ),
+        loading: () => const Center(child: CircularProgressIndicator()),
+        error: (error, stack) => Center(
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              const Icon(Icons.error_outline, size: 48, color: Colors.red),
+              const SizedBox(height: 16),
+              Text('Error loading products: $error'),
+              const SizedBox(height: 16),
+              ElevatedButton(
+                onPressed: () => ref.refresh(productsProvider),
+                child: const Text('Retry'),
+              ),
+            ],
+          ),
+        ),
+      ),
     );
   }
 }

lib/features/products/presentation/providers/products_provider.dart

@@ -1,32 +1,92 @@
 import 'package:riverpod_annotation/riverpod_annotation.dart';
 import '../../domain/entities/product.dart';
+import '../../data/providers/product_providers.dart';
+import '../../../../core/providers/providers.dart';
 
 part 'products_provider.g.dart';
 
-/// Provider for products list
+/// Provider for products list with API-first approach
 @riverpod
 class Products extends _$Products {
   @override
   Future<List<Product>> build() async {
-    // TODO: Implement with repository
+    // API-first: Try to load from API first
-    return [];
+    final repository = ref.watch(productRepositoryProvider);
+    final networkInfo = ref.watch(networkInfoProvider);
+
+    // Check if online
+    final isConnected = await networkInfo.isConnected;
+
+    if (isConnected) {
+      // Try API first
+      try {
+        final syncResult = await repository.syncProducts();
+        return syncResult.fold(
+          (failure) {
+            // API failed, fallback to cache
+            print('API failed, falling back to cache: ${failure.message}');
+            return _loadFromCache();
+          },
+          (products) => products,
+        );
+      } catch (e) {
+        // API error, fallback to cache
+        print('API error, falling back to cache: $e');
+        return _loadFromCache();
+      }
+    } else {
+      // Offline, load from cache
+      print('Offline, loading from cache');
+      return _loadFromCache();
+    }
   }
 
+  /// Load products from local cache
+  Future<List<Product>> _loadFromCache() async {
+    final repository = ref.read(productRepositoryProvider);
+    final result = await repository.getAllProducts();
+
+    return result.fold(
+      (failure) {
+        print('Cache load failed: ${failure.message}');
+        return <Product>[];
+      },
+      (products) => products,
+    );
+  }
+
+  /// Refresh products from local storage
   Future<void> refresh() async {
-    // TODO: Implement refresh logic
     state = const AsyncValue.loading();
     state = await AsyncValue.guard(() async {
-      // Fetch products from repository
+      final repository = ref.read(productRepositoryProvider);
-      return [];
+      final result = await repository.getAllProducts();
+
+      return result.fold(
+        (failure) => throw Exception(failure.message),
+        (products) => products,
+      );
     });
   }
 
+  /// Sync products from API and update local storage
   Future<void> syncProducts() async {
-    // TODO: Implement sync logic with remote data source
+    final networkInfo = ref.read(networkInfoProvider);
+    final isConnected = await networkInfo.isConnected;
+
+    if (!isConnected) {
+      throw Exception('No internet connection');
+    }
+
     state = const AsyncValue.loading();
     state = await AsyncValue.guard(() async {
-      // Sync products from API
+      final repository = ref.read(productRepositoryProvider);
-      return [];
+      final result = await repository.syncProducts();
+
+      return result.fold(
+        (failure) => throw Exception(failure.message),
+        (products) => products,
+      );
     });
   }
 }

lib/features/products/presentation/providers/products_provider.g.dart

@@ -8,15 +8,15 @@ part of 'products_provider.dart';
 
 // GENERATED CODE - DO NOT MODIFY BY HAND
 // ignore_for_file: type=lint, type=warning
-/// Provider for products list
+/// Provider for products list with API-first approach
 
 @ProviderFor(Products)
 const productsProvider = ProductsProvider._();
 
-/// Provider for products list
+/// Provider for products list with API-first approach
 final class ProductsProvider
     extends $AsyncNotifierProvider<Products, List<Product>> {
-  /// Provider for products list
+  /// Provider for products list with API-first approach
   const ProductsProvider._()
     : super(
         from: null,
@@ -36,9 +36,9 @@ final class ProductsProvider
   Products create() => Products();
 }
 
-String _$productsHash() => r'9e1d3aaa1d9cf0b4ff03fdfaf4512a7a15336d51';
+String _$productsHash() => r'0ff8c2de46bb4b1e29678cc811ec121c9fb4c8eb';
 
-/// Provider for products list
+/// Provider for products list with API-first approach
 
 abstract class _$Products extends $AsyncNotifier<List<Product>> {
   FutureOr<List<Product>> build();

lib/main.dart

@@ -2,6 +2,12 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:hive_ce_flutter/hive_flutter.dart';
 import 'app.dart';
+import 'core/constants/storage_constants.dart';
+import 'features/products/data/models/product_model.dart';
+import 'features/categories/data/models/category_model.dart';
+import 'features/home/data/models/cart_item_model.dart';
+import 'features/home/data/models/transaction_model.dart';
+import 'features/settings/data/models/app_settings_model.dart';
 
 /// Main entry point of the application
 void main() async {
@@ -12,18 +18,18 @@ void main() async {
   await Hive.initFlutter();
 
   // Register Hive adapters
-  // TODO: Register adapters after running code generation
+  Hive.registerAdapter(ProductModelAdapter());
-  // Hive.registerAdapter(ProductModelAdapter());
+  Hive.registerAdapter(CategoryModelAdapter());
-  // Hive.registerAdapter(CategoryModelAdapter());
+  Hive.registerAdapter(CartItemModelAdapter());
-  // Hive.registerAdapter(CartItemModelAdapter());
+  Hive.registerAdapter(TransactionModelAdapter());
-  // Hive.registerAdapter(AppSettingsModelAdapter());
+  Hive.registerAdapter(AppSettingsModelAdapter());
 
   // Open Hive boxes
-  // TODO: Open boxes after registering adapters
+  await Hive.openBox<ProductModel>(StorageConstants.productsBox);
-  // await Hive.openBox<ProductModel>(StorageConstants.productsBox);
+  await Hive.openBox<CategoryModel>(StorageConstants.categoriesBox);
-  // await Hive.openBox<CategoryModel>(StorageConstants.categoriesBox);
+  await Hive.openBox<CartItemModel>(StorageConstants.cartBox);
-  // await Hive.openBox<CartItemModel>(StorageConstants.cartBox);
+  await Hive.openBox<TransactionModel>(StorageConstants.transactionsBox);
-  // await Hive.openBox<AppSettingsModel>(StorageConstants.settingsBox);
+  await Hive.openBox<AppSettingsModel>(StorageConstants.settingsBox);
 
   // Run the app with Riverpod (no GetIt needed - using Riverpod for DI)
   runApp(