623 lines
19 KiB
Dart
623 lines
19 KiB
Dart
/// News Detail Page
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///
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/// Displays full article content with images, HTML rendering, and interactions.
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/// Matches HTML design at html/news-detail.html
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library;
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import 'package:cached_network_image/cached_network_image.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_html/flutter_html.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:go_router/go_router.dart';
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import 'package:worker/core/constants/ui_constants.dart';
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import 'package:worker/core/theme/colors.dart';
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import 'package:worker/features/news/domain/entities/news_article.dart';
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import 'package:worker/features/news/presentation/providers/news_provider.dart';
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import 'package:worker/features/news/presentation/widgets/highlight_box.dart';
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import 'package:worker/features/news/presentation/widgets/related_article_card.dart';
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/// News Detail Page
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///
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/// Features:
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/// - AppBar with back, share, and bookmark buttons
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/// - Hero image (250px height)
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/// - Article metadata (category, date, reading time, views)
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/// - Title and excerpt
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/// - Full article body with HTML rendering
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/// - Tags section
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/// - Social engagement stats and action buttons
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/// - Related articles section
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/// - Loading and error states
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class NewsDetailPage extends ConsumerStatefulWidget {
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/// Article ID to display
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final String articleId;
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/// Constructor
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const NewsDetailPage({super.key, required this.articleId});
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@override
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ConsumerState<NewsDetailPage> createState() => _NewsDetailPageState();
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}
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class _NewsDetailPageState extends ConsumerState<NewsDetailPage> {
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bool _isBookmarked = false;
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bool _isLiked = false;
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@override
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Widget build(BuildContext context) {
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final articleAsync = ref.watch(newsArticleByIdProvider(widget.articleId));
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return Scaffold(
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backgroundColor: Colors.white,
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appBar: _buildAppBar(context),
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body: articleAsync.when(
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data: (article) {
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if (article == null) {
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return _buildNotFoundState();
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}
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return _buildContent(context, article);
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},
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loading: () => const Center(child: CircularProgressIndicator()),
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error: (error, stack) => _buildErrorState(error.toString()),
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),
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);
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}
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/// Build AppBar
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PreferredSizeWidget _buildAppBar(BuildContext context) {
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return AppBar(
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backgroundColor: AppColors.white,
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elevation: AppBarSpecs.elevation,
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title: Text(
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'Chi tiết bài viết',
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style: const TextStyle(color: Colors.black),
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),
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centerTitle: false,
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leading: IconButton(
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icon: const Icon(Icons.arrow_back, color: Colors.black),
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onPressed: () => context.pop(),
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),
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actions: [
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// Share button
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IconButton(
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icon: const Icon(Icons.share, color: Colors.black),
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onPressed: _onShareTap,
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),
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// Bookmark button
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IconButton(
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icon: Icon(
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_isBookmarked ? Icons.bookmark : Icons.bookmark_border,
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color: _isBookmarked ? AppColors.warning : Colors.black,
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),
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onPressed: _onBookmarkTap,
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),
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const SizedBox(width: AppSpacing.sm),
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],
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);
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}
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/// Build content
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Widget _buildContent(BuildContext context, NewsArticle article) {
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final relatedArticles = ref
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.watch(filteredNewsArticlesProvider)
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.value
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?.where((a) => a.id != article.id && a.category == article.category)
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.take(3)
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.toList();
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return SingleChildScrollView(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// Hero Image
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CachedNetworkImage(
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imageUrl: article.imageUrl,
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width: double.infinity,
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height: 250,
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fit: BoxFit.cover,
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placeholder: (context, url) => Container(
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height: 250,
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color: AppColors.grey100,
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child: const Center(child: CircularProgressIndicator()),
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),
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errorWidget: (context, url, error) => Container(
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height: 250,
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color: AppColors.grey100,
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child: const Icon(
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Icons.image_outlined,
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size: 48,
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color: AppColors.grey500,
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),
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),
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),
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// Article Content
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Padding(
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padding: const EdgeInsets.all(24),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// Metadata
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_buildMetadata(article),
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const SizedBox(height: 16),
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// Title
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Text(
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article.title,
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style: const TextStyle(
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fontSize: 24,
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fontWeight: FontWeight.w700,
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color: Color(0xFF1E293B),
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height: 1.3,
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),
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),
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const SizedBox(height: 16),
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// Excerpt
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Container(
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: const Color(0xFFF8FAFC),
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border: const Border(
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left: BorderSide(color: AppColors.primaryBlue, width: 4),
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),
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borderRadius: const BorderRadius.only(
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topRight: Radius.circular(8),
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bottomRight: Radius.circular(8),
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),
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),
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child: Text(
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article.excerpt,
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style: const TextStyle(
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fontSize: 16,
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color: Color(0xFF64748B),
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fontStyle: FontStyle.italic,
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height: 1.5,
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),
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),
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),
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const SizedBox(height: 24),
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// Article Body - Render HTML content
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if (article.content != null && article.content!.isNotEmpty)
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Container(
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// Wrap Html in Container to prevent rendering issues
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child: Html(
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data: article.content,
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style: {
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"body": Style(
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margin: Margins.zero,
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padding: HtmlPaddings.zero,
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fontSize: FontSize(16),
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lineHeight: const LineHeight(1.7),
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color: const Color(0xFF1E293B),
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),
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"h2": Style(
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fontSize: FontSize(20),
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fontWeight: FontWeight.w600,
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color: const Color(0xFF1E293B),
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margin: Margins.only(top: 32, bottom: 16),
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),
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"h3": Style(
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fontSize: FontSize(18),
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fontWeight: FontWeight.w600,
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color: const Color(0xFF1E293B),
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margin: Margins.only(top: 24, bottom: 12),
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),
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"p": Style(
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fontSize: FontSize(16),
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color: const Color(0xFF1E293B),
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lineHeight: const LineHeight(1.7),
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margin: Margins.only(bottom: 16),
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),
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"strong": Style(
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fontWeight: FontWeight.w600,
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color: const Color(0xFF1E293B),
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),
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"img": Style(
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margin: Margins.symmetric(vertical: 16),
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),
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"ul": Style(
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margin: Margins.only(left: 16, bottom: 16),
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),
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"ol": Style(
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margin: Margins.only(left: 16, bottom: 16),
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),
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"li": Style(
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fontSize: FontSize(16),
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color: const Color(0xFF1E293B),
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lineHeight: const LineHeight(1.5),
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margin: Margins.only(bottom: 8),
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),
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"blockquote": Style(
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backgroundColor: const Color(0xFFF0F9FF),
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border: const Border(
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left: BorderSide(color: AppColors.primaryBlue, width: 4),
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),
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padding: HtmlPaddings.all(16),
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margin: Margins.symmetric(vertical: 24),
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fontStyle: FontStyle.italic,
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),
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"div": Style(
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margin: Margins.zero,
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padding: HtmlPaddings.zero,
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),
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},
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onLinkTap: (url, attributes, element) {
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// Handle link taps if needed
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if (url != null) {
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debugPrint('Link tapped: $url');
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}
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},
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),
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),
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const SizedBox(height: 32),
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// Tags Section
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if (article.tags.isNotEmpty) _buildTagsSection(article.tags),
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const SizedBox(height: 32),
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// Social Actions
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_buildSocialActions(article),
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const SizedBox(height: 32),
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// Related Articles
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if (relatedArticles != null && relatedArticles.isNotEmpty)
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_buildRelatedArticles(relatedArticles),
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],
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),
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),
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],
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),
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);
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}
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/// Build metadata
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Widget _buildMetadata(NewsArticle article) {
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return Wrap(
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spacing: 16,
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runSpacing: 8,
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children: [
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// Category badge
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Container(
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padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 4),
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decoration: BoxDecoration(
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color: AppColors.primaryBlue,
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borderRadius: BorderRadius.circular(16),
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),
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child: Text(
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article.category.displayName,
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style: const TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.w600,
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color: Colors.white,
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),
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),
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),
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// Date
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_buildMetaItem(Icons.calendar_today, article.formattedDate),
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// Reading time
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_buildMetaItem(Icons.schedule, article.readingTimeText),
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// Views
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_buildMetaItem(
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Icons.visibility,
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'${article.formattedViewCount} lượt xem',
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),
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],
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);
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}
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/// Build metadata item
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Widget _buildMetaItem(IconData icon, String text) {
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return Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(icon, size: 12, color: const Color(0xFF64748B)),
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const SizedBox(width: 4),
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Text(
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text,
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style: const TextStyle(fontSize: 12, color: Color(0xFF64748B)),
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),
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],
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);
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}
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/// Build tags section
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Widget _buildTagsSection(List<String> tags) {
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return Container(
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: const Color(0xFFF8FAFC),
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borderRadius: BorderRadius.circular(AppRadius.lg),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text(
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'Thẻ liên quan',
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style: TextStyle(
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fontSize: 14,
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fontWeight: FontWeight.w600,
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color: Color(0xFF1E293B),
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),
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),
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const SizedBox(height: 12),
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Wrap(
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spacing: 8,
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runSpacing: 8,
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children: tags
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.map(
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(tag) => Container(
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padding: const EdgeInsets.symmetric(
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horizontal: 12,
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vertical: 4,
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),
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decoration: BoxDecoration(
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color: Colors.white,
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border: Border.all(color: const Color(0xFFE2E8F0)),
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borderRadius: BorderRadius.circular(16),
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),
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child: Text(
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tag,
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style: const TextStyle(
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fontSize: 12,
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color: Color(0xFF64748B),
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),
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),
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),
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)
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.toList(),
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),
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],
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),
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);
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}
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/// Build social actions section
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Widget _buildSocialActions(NewsArticle article) {
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return Container(
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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border: Border.symmetric(
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horizontal: BorderSide(color: const Color(0xFFE2E8F0)),
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),
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),
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child: Column(
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children: [
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// Engagement stats
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Wrap(
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spacing: 16,
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runSpacing: 8,
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children: [
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_buildStatItem(Icons.favorite, '${article.likeCount} lượt thích'),
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_buildStatItem(
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Icons.comment,
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'${article.commentCount} bình luận',
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),
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_buildStatItem(Icons.share, '${article.shareCount} lượt chia sẻ'),
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],
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),
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const SizedBox(height: 16),
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// Action buttons
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Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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_buildActionButton(
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icon: _isLiked ? Icons.favorite : Icons.favorite_border,
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onPressed: _onLikeTap,
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color: _isLiked ? Colors.red : null,
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),
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const SizedBox(width: 8),
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_buildActionButton(
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icon: _isBookmarked ? Icons.bookmark : Icons.bookmark_border,
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onPressed: _onBookmarkTap,
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color: _isBookmarked ? AppColors.warning : null,
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),
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const SizedBox(width: 8),
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_buildActionButton(icon: Icons.share, onPressed: _onShareTap),
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],
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),
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],
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),
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);
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}
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/// Build stat item
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Widget _buildStatItem(IconData icon, String text) {
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return Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(icon, size: 14, color: const Color(0xFF64748B)),
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const SizedBox(width: 4),
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Text(
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text,
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style: const TextStyle(fontSize: 14, color: Color(0xFF64748B)),
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),
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],
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);
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}
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/// Build action button
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Widget _buildActionButton({
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required IconData icon,
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required VoidCallback onPressed,
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Color? color,
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}) {
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return OutlinedButton(
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onPressed: onPressed,
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style: OutlinedButton.styleFrom(
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padding: const EdgeInsets.all(12),
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side: BorderSide(color: color ?? const Color(0xFFE2E8F0), width: 2),
|
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
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),
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child: Icon(icon, size: 20, color: color ?? const Color(0xFF64748B)),
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);
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}
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|
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/// Build related articles section
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Widget _buildRelatedArticles(List<NewsArticle> articles) {
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return Container(
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padding: const EdgeInsets.all(16),
|
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decoration: BoxDecoration(
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color: const Color(0xFFF8FAFC),
|
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borderRadius: BorderRadius.circular(AppRadius.lg),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text(
|
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'Bài viết liên quan',
|
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style: TextStyle(
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fontSize: 18,
|
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fontWeight: FontWeight.w600,
|
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color: Color(0xFF1E293B),
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),
|
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),
|
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const SizedBox(height: 16),
|
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...articles.map(
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(article) => RelatedArticleCard(
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article: article,
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onTap: () {
|
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// Navigate to related article
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|
context.push('/news/${article.id}');
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},
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),
|
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),
|
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],
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),
|
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);
|
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}
|
|
|
|
/// Build not found state
|
|
Widget _buildNotFoundState() {
|
|
return Center(
|
|
child: Column(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: [
|
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Icon(Icons.article_outlined, size: 64, color: AppColors.grey500),
|
|
const SizedBox(height: 16),
|
|
const Text(
|
|
'Không tìm thấy bài viết',
|
|
style: TextStyle(
|
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fontSize: 16,
|
|
fontWeight: FontWeight.w600,
|
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color: Color(0xFF1E293B),
|
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),
|
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),
|
|
const SizedBox(height: 8),
|
|
const Text(
|
|
'Bài viết này không tồn tại hoặc đã bị xóa',
|
|
style: TextStyle(fontSize: 14, color: Color(0xFF64748B)),
|
|
textAlign: TextAlign.center,
|
|
),
|
|
const SizedBox(height: 24),
|
|
ElevatedButton(
|
|
onPressed: () => context.pop(),
|
|
child: const Text('Quay lại'),
|
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),
|
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],
|
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),
|
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);
|
|
}
|
|
|
|
/// Build error state
|
|
Widget _buildErrorState(String error) {
|
|
return Center(
|
|
child: Column(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: [
|
|
Icon(Icons.error_outline, size: 64, color: AppColors.danger),
|
|
const SizedBox(height: 16),
|
|
const Text(
|
|
'Không thể tải bài viết',
|
|
style: TextStyle(
|
|
fontSize: 16,
|
|
fontWeight: FontWeight.w600,
|
|
color: Color(0xFF1E293B),
|
|
),
|
|
),
|
|
const SizedBox(height: 8),
|
|
Padding(
|
|
padding: const EdgeInsets.symmetric(horizontal: 32),
|
|
child: Text(
|
|
error,
|
|
style: const TextStyle(fontSize: 14, color: Color(0xFF64748B)),
|
|
textAlign: TextAlign.center,
|
|
),
|
|
),
|
|
const SizedBox(height: 24),
|
|
ElevatedButton(
|
|
onPressed: () => context.pop(),
|
|
child: const Text('Quay lại'),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
|
|
/// Handle like tap
|
|
void _onLikeTap() {
|
|
setState(() {
|
|
_isLiked = !_isLiked;
|
|
});
|
|
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
SnackBar(
|
|
content: Text(
|
|
_isLiked ? 'Đã thích bài viết!' : 'Đã bỏ thích bài viết!',
|
|
),
|
|
duration: const Duration(seconds: 1),
|
|
),
|
|
);
|
|
}
|
|
|
|
/// Handle bookmark tap
|
|
void _onBookmarkTap() {
|
|
setState(() {
|
|
_isBookmarked = !_isBookmarked;
|
|
});
|
|
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
SnackBar(
|
|
content: Text(
|
|
_isBookmarked ? 'Đã lưu bài viết!' : 'Đã bỏ lưu bài viết!',
|
|
),
|
|
duration: const Duration(seconds: 1),
|
|
),
|
|
);
|
|
}
|
|
|
|
/// Handle share tap
|
|
void _onShareTap() {
|
|
// Copy link to clipboard
|
|
Clipboard.setData(
|
|
ClipboardData(text: 'https://worker.app/news/${widget.articleId}'),
|
|
);
|
|
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
const SnackBar(
|
|
content: Text('Đã sao chép link bài viết!'),
|
|
duration: Duration(seconds: 2),
|
|
),
|
|
);
|
|
|
|
// TODO: Implement native share when share_plus package is added
|
|
// Share.share(
|
|
// 'Xem bài viết: ${article.title}\nhttps://worker.app/news/${article.id}',
|
|
// subject: article.title,
|
|
// );
|
|
}
|
|
}
|