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worker/docs/favorite.sh
Phuoc Nguyen a5eb95fa64 add favorite
2025-11-18 11:23:07 +07:00

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#!/bin/bash
# Favorites Feature Simplification Summary
# Date: 2025-11-18
#
# CHANGES MADE:
# =============
#
# 1. Simplified favorites_provider.dart
# - Removed old Favorites provider (Set<String> of product IDs)
# - Kept only FavoriteProducts provider (List<Product>)
# - Helper providers now derive from FavoriteProducts:
# * isFavorite(productId) - checks if product is in list
# * favoriteCount() - counts products in list
# * favoriteProductIds() - maps to list of product IDs
# - Add/remove methods now use favoriteProductsProvider.notifier
# - No userId filtering - uses authenticated API session
#
# 2. Updated favorites_page.dart
# - Changed clearAll to show "under development" message
# - Still watches favoriteProductsProvider (already correct)
#
# 3. Updated favorite_product_card.dart
# - Changed from favoritesProvider.notifier to favoriteProductsProvider.notifier
# - Remove favorite now calls the correct provider
#
# 4. Updated product_detail_page.dart
# - Changed toggleFavorite from favoritesProvider.notifier to favoriteProductsProvider.notifier
#
# KEY BEHAVIORS:
# ==============
#
# - All favorites operations work with Product entities directly
# - No userId parameter needed in UI code
# - Repository methods still use 'current_user' as dummy userId for backwards compatibility
# - API calls use authenticated session (token-based)
# - Add/remove operations refresh the products list after success
# - Helper providers safely return defaults during loading/error states
#
# FILES MODIFIED:
# ==============
# 1. lib/features/favorites/presentation/providers/favorites_provider.dart
# 2. lib/features/favorites/presentation/pages/favorites_page.dart
# 3. lib/features/favorites/presentation/widgets/favorite_product_card.dart
# 4. lib/features/products/presentation/pages/product_detail_page.dart
#
# ARCHITECTURE:
# ============
#
# Main Provider:
# FavoriteProducts (AsyncNotifierProvider<List<Product>>)
# ├── build() - loads products from repository
# ├── addFavorite(productId) - calls API, refreshes list
# ├── removeFavorite(productId) - calls API, refreshes list
# ├── toggleFavorite(productId) - adds or removes based on current state
# └── refresh() - manual refresh for pull-to-refresh
#
# Helper Providers (derived from FavoriteProducts):
# isFavorite(productId) - bool
# favoriteCount() - int
# favoriteProductIds() - List<String>
#
# Data Flow:
# UI -> FavoriteProducts.notifier.method() -> Repository -> API
# API Response -> Repository caches locally -> Provider updates state
# Helper Providers watch FavoriteProducts and derive values
#
# TESTING:
# ========
# To verify the changes work:
# 1. Add products to favorites from product detail page
# 2. View favorites page - should load product list
# 3. Remove products from favorites page
# 4. Toggle favorites from product cards
# 5. Check that favoriteCount updates in real-time
# 6. Test offline mode - should use cached products
echo "Favorites feature simplified successfully!"
echo "Main provider: FavoriteProducts (List<Product>)"
echo "Helper providers derive from product list"
echo "No userId filtering - uses API auth session"