update news

lib/features/news/presentation/providers/news_provider.dart

@@ -47,27 +47,52 @@ Future<NewsRepository> newsRepository(Ref ref) async {
   );
 }
 
-/// News Articles Provider
+/// All News Articles Provider (Internal)
 ///
-/// Fetches all news articles sorted by published date.
-/// Returns AsyncValue<List<NewsArticle>> for proper loading/error handling.
+/// Fetches ALL blog posts from Frappe API sorted by published date (latest first).
+/// This is the complete list used by both featured and latest articles providers.
+/// Do not use this provider directly in UI - use featuredArticle or newsArticles instead.
 @riverpod
-Future<List<NewsArticle>> newsArticles(Ref ref) async {
-  final repository = await ref.watch(newsRepositoryProvider.future);
-  return repository.getAllArticles();
+Future<List<NewsArticle>> _allNewsArticles(Ref ref) async {
+  final remoteDataSource = await ref.watch(newsRemoteDataSourceProvider.future);
+
+  // Fetch blog posts from Frappe API
+  final blogPosts = await remoteDataSource.getBlogPosts();
+
+  // Convert to NewsArticle entities
+  final articles = blogPosts.map((post) => post.toEntity()).toList();
+
+  // Already sorted by published_on desc from API
+  return articles;
 }
 
 /// Featured Article Provider
 ///
-/// Fetches the featured article for the top section.
-/// Returns AsyncValue<NewsArticle?> (null if no featured article).
+/// Returns the first article from the complete list.
+/// This is the latest published article that will be displayed prominently at the top.
 @riverpod
 Future<NewsArticle?> featuredArticle(Ref ref) async {
-  final repository = await ref.watch(newsRepositoryProvider.future);
-  return repository.getFeaturedArticle();
+  final allArticles = await ref.watch(_allNewsArticlesProvider.future);
+
+  // Return first article if available (latest post)
+  return allArticles.isNotEmpty ? allArticles.first : null;
 }
 
-/// Selected News Category Provider
+/// News Articles Provider
+///
+/// Returns latest news articles EXCLUDING the first item (which is shown as featured).
+/// This ensures each article only appears once on the page.
+/// Returns AsyncValue<List<NewsArticle>> for proper loading/error handling.
+@riverpod
+Future<List<NewsArticle>> newsArticles(Ref ref) async {
+  final allArticles = await ref.watch(_allNewsArticlesProvider.future);
+
+  // Return all articles except first (which is featured)
+  // If only 0-1 articles, return empty list
+  return allArticles.length > 1 ? allArticles.sublist(1) : [];
+}
+
+/// Selected News Category Provider (Legacy - using enum)
 ///
 /// Manages the currently selected category filter.
 /// null means "All" is selected (show all categories).
@@ -90,32 +115,67 @@ class SelectedNewsCategory extends _$SelectedNewsCategory {
   }
 }
 
-/// Filtered News Articles Provider
+/// Selected Category Name Provider
 ///
-/// Returns news articles filtered by selected category.
-/// If no category is selected, returns all articles.
+/// Manages the currently selected blog category name (from Frappe API).
+/// null means "All" is selected (show all categories).
+///
+/// Examples: "tin-tức", "dự-án", "chuyên-môn", "khuyến-mãi"
 @riverpod
-Future<List<NewsArticle>> filteredNewsArticles(Ref ref) async {
-  final selectedCategory = ref.watch(selectedNewsCategoryProvider);
-  final repository = await ref.watch(newsRepositoryProvider.future);
-
-  // If no category selected, return all articles
-  if (selectedCategory == null) {
-    return repository.getAllArticles();
+class SelectedCategoryName extends _$SelectedCategoryName {
+  @override
+  String? build() {
+    // Default: show all categories
+    return null;
   }
 
-  // Filter by selected category
-  return repository.getArticlesByCategory(selectedCategory);
+  /// Set selected category by name
+  void setCategoryName(String? categoryName) {
+    state = categoryName;
+  }
+
+  /// Clear selection (show all)
+  void clearSelection() {
+    state = null;
+  }
+}
+
+/// Filtered News Articles Provider
+///
+/// Returns news articles filtered by selected blog category name.
+/// Excludes the first article (which is shown as featured).
+/// If no category is selected, returns all articles except first.
+///
+/// The blog_category name from API is stored in article.tags[0] for filtering.
+@riverpod
+Future<List<NewsArticle>> filteredNewsArticles(Ref ref) async {
+  final selectedCategoryName = ref.watch(selectedCategoryNameProvider);
+  final allArticles = await ref.watch(_allNewsArticlesProvider.future);
+
+  // Get articles excluding first (which is featured)
+  final articlesWithoutFeatured = allArticles.length > 1 ? allArticles.sublist(1) : <NewsArticle>[];
+
+  // If no category selected, return all articles except first
+  if (selectedCategoryName == null) {
+    return articlesWithoutFeatured;
+  }
+
+  // Filter articles by blog_category name (stored in tags[0])
+  return articlesWithoutFeatured.where((article) {
+    // Check if article has tags and first tag matches selected category
+    return article.tags.isNotEmpty && article.tags[0] == selectedCategoryName;
+  }).toList();
 }
 
 /// News Article by ID Provider
 ///
-/// Fetches a specific article by ID.
+/// Fetches a specific article by ID from the Frappe API.
+/// Uses frappe.client.get endpoint to fetch the full blog post detail.
 /// Used for article detail page.
 @riverpod
 Future<NewsArticle?> newsArticleById(Ref ref, String articleId) async {
   final repository = await ref.watch(newsRepositoryProvider.future);
-  return repository.getArticleById(articleId);
+  return repository.getArticleByIdFromApi(articleId);
 }
 
 /// Blog Categories Provider