update cart/favorite

lib/features/cart/presentation/pages/cart_page.dart

@@ -3,7 +3,7 @@
 /// Shopping cart screen with selection and checkout.
 /// Features expanded item list with total price at bottom.
 library;
-
+import 'package:worker/core/utils/extensions.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
@@ -35,14 +35,8 @@ class CartPage extends ConsumerStatefulWidget {
 class _CartPageState extends ConsumerState<CartPage> {
   bool _isSyncing = false;
 
-  @override
-  void initState() {
-    super.initState();
-    // Initialize cart from API on mount
-    WidgetsBinding.instance.addPostFrameCallback((_) {
-      ref.read(cartProvider.notifier).initialize();
-    });
-  }
+  // Cart is initialized once in home_page.dart at app startup
+  // Provider has keepAlive: true, so no need to reload here
 
   // Note: Sync is handled in PopScope.onPopInvokedWithResult for back navigation
   // and in checkout button handler for checkout flow.
@@ -53,11 +47,7 @@ class _CartPageState extends ConsumerState<CartPage> {
     final colorScheme = Theme.of(context).colorScheme;
     final cartState = ref.watch(cartProvider);
 
-    final currencyFormatter = NumberFormat.currency(
-      locale: 'vi_VN',
-      symbol: 'đ',
-      decimalDigits: 0,
-    );
+
 
     final itemCount = cartState.itemCount;
     final hasSelection = cartState.selectedCount > 0;
@@ -144,7 +134,11 @@ class _CartPageState extends ConsumerState<CartPage> {
                           context,
                           cartState,
                           ref,
-                          currencyFormatter,
+                          NumberFormat.currency(
+                            locale: 'vi_VN',
+                            symbol: 'đ',
+                            decimalDigits: 0,
+                          ),
                           hasSelection,
                         ),
                       ],

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

@@ -9,7 +9,6 @@ import 'package:riverpod_annotation/riverpod_annotation.dart';
 import 'package:worker/features/cart/presentation/providers/cart_data_providers.dart';
 import 'package:worker/features/cart/presentation/providers/cart_state.dart';
 import 'package:worker/features/products/domain/entities/product.dart';
-import 'package:worker/features/products/presentation/providers/products_provider.dart';
 
 part 'cart_provider.g.dart';
 
@@ -46,8 +45,12 @@ class Cart extends _$Cart {
 
   /// Initialize cart by loading from API
   ///
-  /// Call this from UI on mount to load cart items from backend.
+  /// Call this ONCE from HomePage on app startup.
+  /// Cart API returns product details, no need to fetch each product separately.
   Future<void> initialize() async {
+    // Skip if already loaded
+    if (state.items.isNotEmpty) return;
+
     final repository = await ref.read(cartRepositoryProvider.future);
 
     // Set loading state
@@ -55,6 +58,7 @@ class Cart extends _$Cart {
 
     try {
       // Load cart items from API (with Hive fallback)
+      // Cart API returns: item_code, item_name, image, conversion_of_sm, quantity, amount
       final cartItems = await repository.getCartItems();
 
       // Get member tier from user profile
@@ -63,41 +67,47 @@ class Cart extends _$Cart {
       const memberDiscountPercent = 15.0;
 
       // Convert CartItem entities to CartItemData for UI
+      // Use product data from cart API directly - no need to fetch each product
       final items = <CartItemData>[];
       final selectedItems = <String, bool>{};
 
-      // Fetch product details for each cart item
-      final productsRepository = await ref.read(productsRepositoryProvider.future);
-
       for (final cartItem in cartItems) {
-        try {
-          // Fetch full product entity from products repository
-          final product = await productsRepository.getProductById(cartItem.productId);
+        // Create minimal Product from cart item data (no need to fetch from API)
+        final now = DateTime.now();
+        final product = Product(
+          productId: cartItem.productId,
+          name: cartItem.itemName ?? cartItem.productId,
+          basePrice: cartItem.unitPrice,
+          images: cartItem.image != null ? [cartItem.image!] : [],
+          thumbnail: cartItem.image ?? '',
+          imageCaptions: const {},
+          specifications: const {},
+          conversionOfSm: cartItem.conversionOfSm,
+          erpnextItemCode: cartItem.productId,
+          isActive: true,
+          isFeatured: false,
+          createdAt: now,
+          updatedAt: now,
+        );
 
-          // Calculate conversion for this item
-          final converted = _calculateConversion(
-            cartItem.quantity,
-            product.conversionOfSm,
-          );
+        // Calculate conversion for this item
+        final converted = _calculateConversion(
+          cartItem.quantity,
+          product.conversionOfSm,
+        );
 
-          // Create CartItemData with full product info
-          items.add(
-            CartItemData(
-              product: product,
-              quantity: cartItem.quantity,
-              quantityConverted: converted.convertedQuantity,
-              boxes: converted.boxes,
-            ),
-          );
+        // Create CartItemData with product info from cart API
+        items.add(
+          CartItemData(
+            product: product,
+            quantity: cartItem.quantity,
+            quantityConverted: converted.convertedQuantity,
+            boxes: converted.boxes,
+          ),
+        );
 
-          // Initialize as not selected by default
-          selectedItems[product.productId] = false;
-        } catch (productError) {
-          // Skip this item if product can't be fetched
-          // In production, use a proper logging framework
-          // ignore: avoid_print
-          print('[CartProvider] Failed to load product ${cartItem.productId}: $productError');
-        }
+        // Initialize as not selected by default
+        selectedItems[product.productId] = false;
       }
 
       final newState = CartState(
@@ -150,6 +160,7 @@ class Cart extends _$Cart {
           itemIds: [product.erpnextItemCode ?? product.productId],
           quantities: [quantity],
           prices: [product.basePrice],
+          conversionFactors: [product.conversionOfSm],
         );
 
         // Calculate conversion
@@ -332,6 +343,7 @@ class Cart extends _$Cart {
           itemId: item.product.erpnextItemCode ?? productId,
           quantity: quantity,
           price: item.product.basePrice,
+          conversionFactor: item.product.conversionOfSm,
         );
       } catch (e) {
         // Silent fail - keep local state, user can retry later
@@ -370,6 +382,7 @@ class Cart extends _$Cart {
         itemId: item.product.erpnextItemCode ?? productId,
         quantity: newQuantity,
         price: item.product.basePrice,
+        conversionFactor: item.product.conversionOfSm,
       );
 
       // Update local state

lib/features/cart/presentation/providers/cart_provider.g.dart

@@ -64,7 +64,7 @@ final class CartProvider extends $NotifierProvider<Cart, CartState> {
   }
 }
 
-String _$cartHash() => r'706de28734e7059b2e9484f3b1d94226a0e90bb9';
+String _$cartHash() => r'a12712db833127ef66b75f52cba8376409806afa';
 
 /// Cart Notifier
 ///

lib/features/cart/presentation/widgets/cart_item_widget.dart

@@ -8,6 +8,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
 import 'package:intl/intl.dart';
+import 'package:worker/core/utils/extensions.dart';
 import 'package:worker/core/widgets/loading_indicator.dart';
 import 'package:worker/core/theme/typography.dart';
 import 'package:worker/features/cart/presentation/providers/cart_provider.dart';
@@ -79,11 +80,6 @@ class _CartItemWidgetState extends ConsumerState<CartItemWidget> {
     final isSelected =
         cartState.selectedItems[widget.item.product.productId] ?? false;
 
-    final currencyFormatter = NumberFormat.currency(
-      locale: 'vi_VN',
-      symbol: 'đ',
-      decimalDigits: 0,
-    );
 
     return Container(
       margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 6),
@@ -121,7 +117,11 @@ class _CartItemWidgetState extends ConsumerState<CartItemWidget> {
           ClipRRect(
             borderRadius: BorderRadius.circular(8),
             child: CachedNetworkImage(
-              imageUrl: widget.item.product.thumbnail,
+              imageUrl: widget.item.product.thumbnail.isNotEmpty
+                  ? widget.item.product.thumbnail
+                  : (widget.item.product.images.isNotEmpty
+                      ? widget.item.product.images.first
+                      : ''),
               width: 100,
               height: 100,
               fit: BoxFit.cover,
@@ -168,7 +168,7 @@ class _CartItemWidgetState extends ConsumerState<CartItemWidget> {
 
                 // Price
                 Text(
-                  '${currencyFormatter.format(widget.item.product.basePrice)}/m²',
+                  '${widget.item.product.basePrice.toVNCurrency}/m²',
                   style: AppTypography.titleMedium.copyWith(
                     color: colorScheme.primary,
                     fontWeight: FontWeight.bold,