runable

lib/features/home/presentation/providers/cart_provider.dart

@@ -0,0 +1,54 @@
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import '../../domain/entities/cart_item.dart';
+
+part 'cart_provider.g.dart';
+
+/// Provider for shopping cart
+@riverpod
+class Cart extends _$Cart {
+  @override
+  Future<List<CartItem>> build() async {
+    // TODO: Implement with repository
+    return [];
+  }
+
+  Future<void> addItem(CartItem item) async {
+    // TODO: Implement add to cart
+    state = const AsyncValue.loading();
+    state = await AsyncValue.guard(() async {
+      final currentItems = state.value ?? [];
+      return [...currentItems, item];
+    });
+  }
+
+  Future<void> removeItem(String productId) async {
+    // TODO: Implement remove from cart
+    state = const AsyncValue.loading();
+    state = await AsyncValue.guard(() async {
+      final currentItems = state.value ?? [];
+      return currentItems.where((item) => item.productId != productId).toList();
+    });
+  }
+
+  Future<void> updateQuantity(String productId, int quantity) async {
+    // TODO: Implement update quantity
+    state = const AsyncValue.loading();
+    state = await AsyncValue.guard(() async {
+      final currentItems = state.value ?? [];
+      return currentItems.map((item) {
+        if (item.productId == productId) {
+          return item.copyWith(quantity: quantity);
+        }
+        return item;
+      }).toList();
+    });
+  }
+
+  Future<void> clearCart() async {
+    // TODO: Implement clear cart
+    state = const AsyncValue.loading();
+    state = await AsyncValue.guard(() async {
+      return [];
+    });
+  }
+}