generated from dellevin/template
377 lines
13 KiB
Dart
377 lines
13 KiB
Dart
import 'dart:math';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import '../providers/app_provider.dart';
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import '../models/data_models.dart';
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import '../widgets/animated_star_rating.dart';
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import '../widgets/fade_in_local_image.dart';
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import 'movies/movie_detail_page.dart';
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import 'book/book_detail_page.dart';
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import 'note/note_detail_page.dart';
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/// 漫步页面 - 随机发现内容（滑卡形式）
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class StrollPage extends StatefulWidget {
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const StrollPage({super.key});
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@override
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State<StrollPage> createState() => _StrollPageState();
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}
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class _StrollPageState extends State<StrollPage> {
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final _random = Random();
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final List<_StrollItem> _items = [];
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late PageController _pageController;
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int _currentIndex = 0;
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@override
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void initState() {
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super.initState();
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_pageController = PageController(viewportFraction: 0.85);
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_loadBatch(5);
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}
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@override
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void dispose() {
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_pageController.dispose();
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super.dispose();
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}
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void _loadBatch(int count) {
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final provider = context.read<AppProvider>();
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final movies = provider.movies.where((m) => !m.isDeleted).toList();
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final books = provider.books.where((b) => !b.isDeleted).toList();
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final notes = provider.notes.where((n) => !n.isDeleted).toList();
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final categories = <String, List<dynamic>>{};
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if (movies.isNotEmpty) categories['movie'] = movies;
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if (books.isNotEmpty) categories['book'] = books;
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if (notes.isNotEmpty) categories['note'] = notes;
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if (categories.isEmpty) return;
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final categoryKeys = categories.keys.toList();
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for (int i = 0; i < count; i++) {
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final pickedCategory = categoryKeys[_random.nextInt(categoryKeys.length)];
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_StrollItem? item;
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switch (pickedCategory) {
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case 'movie':
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final m = movies[_random.nextInt(movies.length)];
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item = _StrollItem(
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type: 'movie', data: m,
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title: m.title,
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subtitle: m.alternateTitles.take(2).join(' / '),
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detail: _movieDetail(m),
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imagePath: m.posterPath,
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icon: Icons.movie_outlined, label: '影视',
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rating: m.rating, createdAt: m.createdAt,
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color: const Color(0xFF4A90D9),
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);
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case 'book':
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final b = books[_random.nextInt(books.length)];
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item = _StrollItem(
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type: 'book', data: b,
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title: b.title,
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subtitle: b.authors.take(2).join(' / '),
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detail: _bookDetail(b),
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imagePath: b.coverPath,
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icon: Icons.menu_book_outlined, label: '书籍',
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rating: b.rating, createdAt: b.createdAt,
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color: const Color(0xFF7E57C2),
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);
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case 'note':
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final n = notes[_random.nextInt(notes.length)];
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item = _StrollItem(
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type: 'note', data: n,
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title: n.title.isNotEmpty ? n.title : '随手记',
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subtitle: n.tags.take(3).join(' · '),
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detail: n.content,
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imagePath: n.images.isNotEmpty ? n.images.first : null,
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icon: Icons.note_outlined, label: '笔记',
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createdAt: n.createdAt,
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color: const Color(0xFF66BB6A),
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);
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}
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if (item != null) _items.add(item);
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}
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}
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void _reshuffle() {
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setState(() {
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_items.clear();
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_currentIndex = 0;
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_loadBatch(5);
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});
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}
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void _openDetail(_StrollItem item) {
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switch (item.type) {
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case 'movie':
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Navigator.push(context, MaterialPageRoute(builder: (_) => MovieDetailPage(movie: item.data as Movie)));
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case 'book':
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Navigator.push(context, MaterialPageRoute(builder: (_) => BookDetailPage(book: item.data as Book)));
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case 'note':
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Navigator.push(context, MaterialPageRoute(builder: (_) => NoteDetailPage(note: item.data as Note)));
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}
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}
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String _movieDetail(Movie m) {
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final parts = <String>[];
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if (m.genres.isNotEmpty) parts.add(m.genres.take(3).join(' / '));
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if (m.summary != null && m.summary!.isNotEmpty) {
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parts.add(m.summary!.length > 80 ? '${m.summary!.substring(0, 80)}...' : m.summary!);
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}
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return parts.join('\n');
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}
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String _bookDetail(Book b) {
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final parts = <String>[];
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if (b.genres.isNotEmpty) parts.add(b.genres.take(3).join(' / '));
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if (b.publisher != null && b.publisher!.isNotEmpty) parts.add(b.publisher!);
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if (b.summary != null && b.summary!.isNotEmpty) {
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parts.add(b.summary!.length > 80 ? '${b.summary!.substring(0, 80)}...' : b.summary!);
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}
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return parts.join('\n');
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}
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String _timeAgoText(DateTime date) {
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final diff = DateTime.now().difference(date);
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if (diff.inDays >= 365) return '${(diff.inDays / 365).floor()}年前';
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if (diff.inDays >= 30) return '${(diff.inDays / 30).floor()}个月前';
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if (diff.inDays > 0) return '${diff.inDays}天前';
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if (diff.inHours > 0) return '${diff.inHours}小时前';
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return '刚刚';
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}
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String _actionText(_StrollItem item) {
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final ago = _timeAgoText(item.createdAt);
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switch (item.type) {
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case 'movie': return '$ago 看过';
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case 'book': return '$ago 读过';
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case 'note': return '$ago 写下';
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default: return ago;
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}
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}
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@override
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Widget build(BuildContext context) {
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final colors = Theme.of(context).colorScheme;
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final hasContent = _items.isNotEmpty;
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return Scaffold(
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backgroundColor: colors.surface,
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appBar: AppBar(
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title: const Text('漫步'),
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actions: [
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if (hasContent)
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Padding(
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padding: const EdgeInsets.only(right: 4),
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child: Center(
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child: Text('${_currentIndex + 1}/${_items.length}',
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style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.35))),
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),
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),
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Padding(
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padding: const EdgeInsets.only(right: 12),
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child: GestureDetector(
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onTap: _reshuffle,
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 7),
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decoration: BoxDecoration(
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color: colors.primary,
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borderRadius: BorderRadius.circular(18),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(Icons.casino_outlined, size: 14, color: colors.onPrimary),
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const SizedBox(width: 5),
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Text('随机', style: TextStyle(fontSize: 12, color: colors.onPrimary, fontWeight: FontWeight.w500)),
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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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body: !hasContent
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? Center(
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child: Text('还没有任何内容\n去添加一些吧',
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textAlign: TextAlign.center,
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style: TextStyle(fontSize: 15, color: colors.onSurface.withValues(alpha: 0.3), height: 1.6)))
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: PageView.builder(
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controller: _pageController,
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onPageChanged: (index) {
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setState(() => _currentIndex = index);
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// 接近末尾时追加新条目
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if (index >= _items.length - 2) {
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setState(() => _loadBatch(3));
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}
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},
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itemCount: _items.length,
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itemBuilder: (context, index) {
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return AnimatedBuilder(
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animation: _pageController,
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builder: (context, child) {
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double scale = 1.0;
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if (_pageController.hasClients && _pageController.page != null) {
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final diff = (_pageController.page! - index).abs();
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scale = (1 - diff * 0.1).clamp(0.85, 1.0);
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}
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return Transform.scale(scale: scale, child: child);
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},
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child: _buildCard(_items[index], colors),
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);
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},
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),
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);
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}
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Widget _buildCard(_StrollItem item, ColorScheme colors) {
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final hasImage = item.imagePath != null && item.imagePath!.isNotEmpty;
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return GestureDetector(
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onTap: () => _openDetail(item),
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child: Container(
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margin: const EdgeInsets.symmetric(vertical: 24, horizontal: 6),
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decoration: BoxDecoration(
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color: colors.surfaceContainerLowest,
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borderRadius: BorderRadius.circular(20),
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boxShadow: [
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BoxShadow(color: Colors.black.withValues(alpha: 0.08), blurRadius: 24, offset: const Offset(0, 8)),
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],
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),
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clipBehavior: Clip.antiAlias,
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child: Column(
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children: [
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// 封面/图片区域
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if (hasImage)
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Expanded(
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flex: 5,
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child: SizedBox(
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width: double.infinity,
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child: FadeInLocalImage(path: item.imagePath, fit: BoxFit.cover),
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),
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)
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else
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Expanded(
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flex: 3,
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child: Container(
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width: double.infinity,
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color: colors.surfaceContainerHigh,
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child: Center(child: Icon(item.icon, size: 56, color: item.color.withValues(alpha: 0.2))),
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),
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),
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// 内容区域
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Expanded(
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flex: 4,
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child: Padding(
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padding: const EdgeInsets.fromLTRB(20, 14, 20, 16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// 类型标签 + 评分
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Row(
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children: [
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Container(
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padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
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decoration: BoxDecoration(
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color: item.color.withValues(alpha: 0.08),
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borderRadius: BorderRadius.circular(12),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(item.icon, size: 12, color: item.color),
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const SizedBox(width: 4),
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Text(item.label, style: TextStyle(fontSize: 11, fontWeight: FontWeight.w600, color: item.color)),
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],
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),
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),
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const Spacer(),
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if (item.rating != null)
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AnimatedStarRating(rating: item.rating!, starSize: 14, showNumber: true),
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],
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),
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const SizedBox(height: 10),
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// 标题
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Text(item.title,
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maxLines: 2, overflow: TextOverflow.ellipsis,
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style: TextStyle(fontSize: 18, fontWeight: FontWeight.w700, color: colors.onSurface, height: 1.3)),
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// 副标题
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if (item.subtitle.isNotEmpty) ...[
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const SizedBox(height: 4),
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Text(item.subtitle,
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maxLines: 1, overflow: TextOverflow.ellipsis,
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style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.4))),
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],
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const SizedBox(height: 8),
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// 详情
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if (item.detail.isNotEmpty)
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Expanded(
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child: Container(
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width: double.infinity,
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padding: const EdgeInsets.all(12),
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decoration: BoxDecoration(
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color: colors.surfaceContainerHigh,
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borderRadius: BorderRadius.circular(12),
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),
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child: Text(item.detail, maxLines: 3, overflow: TextOverflow.ellipsis,
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style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.6), height: 1.7)),
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),
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),
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const SizedBox(height: 8),
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// 时间 + 点击提示
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Row(
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children: [
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Text(_actionText(item), style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.25))),
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const Spacer(),
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Icon(Icons.arrow_forward_ios, size: 12, color: colors.onSurface.withValues(alpha: 0.15)),
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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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),
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),
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);
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}
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}
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class _StrollItem {
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final String type;
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final dynamic data;
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final String title;
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final String subtitle;
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final String detail;
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final String? imagePath;
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final IconData icon;
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final String label;
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final double? rating;
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final DateTime createdAt;
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final Color color;
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_StrollItem({
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required this.type,
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required this.data,
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required this.title,
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required this.subtitle,
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required this.detail,
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this.imagePath,
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required this.icon,
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required this.label,
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this.rating,
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required this.createdAt,
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required this.color,
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});
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}
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