403 lines
12 KiB
Dart
403 lines
12 KiB
Dart
// lib/pages/webdav_file_list_page.dart
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// ignore: unused_import
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import 'dart:convert';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import '../services/webdav_service.dart';
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import '../services/playback_service.dart';
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import '../services/audio_service.dart';
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class WebDAVFileListPage extends StatefulWidget {
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final String currentPath;
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const WebDAVFileListPage({super.key, this.currentPath = '/'});
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@override
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State<WebDAVFileListPage> createState() => _WebDAVFileListPageState();
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}
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class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
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List<WebDAVItem> _items = [];
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bool _isLoading = true;
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String _errorMessage = '';
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String _currentPath = '/';
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// 安全解码
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String _safeDecode(String input) {
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try {
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return Uri.decodeComponent(input);
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} catch (_) {
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return input;
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}
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}
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@override
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void initState() {
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super.initState();
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_currentPath = widget.currentPath;
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_loadDirectory();
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}
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// ============================================================
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// 加载目录
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// ============================================================
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Future<void> _loadDirectory() async {
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setState(() {
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_isLoading = true;
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_errorMessage = '';
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});
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try {
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final items =
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await WebDAVService.instance.listDirectory(path: _currentPath);
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setState(() {
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_items = items;
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_isLoading = false;
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});
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} catch (e) {
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setState(() {
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_errorMessage = '加载失败: $e';
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_isLoading = false;
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});
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}
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}
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// ============================================================
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// 进入子目录
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// ============================================================
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void _enterDirectory(WebDAVItem dir) {
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (_) => WebDAVFileListPage(currentPath: dir.path),
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),
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);
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}
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// ============================================================
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// ⭐ 核心：播放歌曲 + 自动构建队列
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// ============================================================
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void _playSong(WebDAVItem file) async {
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try {
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// 1. 获取当前目录所有音乐文件（过滤掉目录）
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final musicFiles = _items.where((item) => !item.isDirectory).toList();
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if (musicFiles.isEmpty) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text('当前目录没有音乐文件'),
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backgroundColor: Colors.orange,
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),
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);
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}
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return;
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}
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// 2. 获取认证头
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final headers = await WebDAVService.instance.getAuthHeaders();
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// 3. 构建播放队列（所有音乐文件）
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final queue = musicFiles.map((item) {
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final itemUrl = WebDAVService.instance.getFileUrl(item.path);
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return Song(
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id: item.path,
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title: item.name.replaceAll(RegExp(r'\.[^.]*$'), ''),
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artist: '未知艺术家',
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url: itemUrl,
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);
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}).toList();
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// 4. 找到当前点击歌曲在队列中的位置
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final startIndex = queue.indexWhere((s) => s.id == file.path);
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if (startIndex == -1) {
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// 极端情况：队列构建有问题，退化为单曲播放
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final url = WebDAVService.instance.getFileUrl(file.path);
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final song = Song(
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id: file.path,
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title: file.name.replaceAll(RegExp(r'\.[^.]*$'), ''),
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artist: '未知艺术家',
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url: url,
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);
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context.read<AudioService>().setQueue([song], startIndex: 0);
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await PlaybackService().play(url, headers: headers);
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return;
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}
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// 5. 设置队列并播放
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final audioService = context.read<AudioService>();
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audioService.setQueue(queue, startIndex: startIndex);
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// 6. 播放（AudioService 内部已经调用了 PlaybackService，但为了确保认证头传递）
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// 这里再显式调用一下，确保认证头正确
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final targetUrl = queue[startIndex].url!;
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await PlaybackService().play(targetUrl, headers: headers);
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// 7. 更新 AudioService 的播放状态（确保 UI 同步）
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// setQueue 已经调用了 _playCurrent()，所以这里不需要重复调用
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('正在播放: ${file.name}'),
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backgroundColor: const Color(0xFF4CAF50),
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duration: const Duration(seconds: 1),
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),
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);
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}
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} catch (e) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('播放失败: $e'),
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backgroundColor: Colors.red,
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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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// 全部播放（从第一首开始）
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// ============================================================
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void _playAll() async {
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try {
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final musicFiles = _items.where((item) => !item.isDirectory).toList();
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if (musicFiles.isEmpty) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text('当前目录没有音乐文件'),
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backgroundColor: Colors.orange,
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),
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);
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}
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return;
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}
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final headers = await WebDAVService.instance.getAuthHeaders();
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final queue = musicFiles.map((item) {
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final itemUrl = WebDAVService.instance.getFileUrl(item.path);
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return Song(
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id: item.path,
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title: item.name.replaceAll(RegExp(r'\.[^.]*$'), ''),
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artist: '未知艺术家',
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url: itemUrl,
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);
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}).toList();
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final audioService = context.read<AudioService>();
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audioService.setQueue(queue, startIndex: 0);
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final targetUrl = queue[0].url!;
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await PlaybackService().play(targetUrl, headers: headers);
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('开始播放全部 (${queue.length}首)'),
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backgroundColor: const Color(0xFF4CAF50),
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duration: const Duration(seconds: 1),
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),
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);
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}
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} catch (e) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('播放失败: $e'),
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backgroundColor: Colors.red,
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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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// 显示路径
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// ============================================================
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String _getDisplayPath() {
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if (_currentPath == '/' || _currentPath.isEmpty) return '根目录';
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final decoded = _safeDecode(_currentPath);
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final parts = decoded.split('/').where((s) => s.isNotEmpty).toList();
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if (parts.isEmpty) return '根目录';
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if (parts.length <= 2) return parts.join(' / ');
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return '... / ${parts.sublist(parts.length - 2).join(' / ')}';
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}
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// ============================================================
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// Build
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// ============================================================
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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backgroundColor: const Color(0xFF0E1211),
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appBar: AppBar(
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title: Text(
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_getDisplayPath(),
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style: const TextStyle(fontSize: 16),
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),
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backgroundColor: Colors.transparent,
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elevation: 0,
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foregroundColor: Colors.white,
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leading: IconButton(
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icon: const Icon(Icons.arrow_back_ios_new),
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onPressed: () => Navigator.pop(context),
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),
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actions: [
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// 全部播放按钮
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IconButton(
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icon: const Icon(Icons.playlist_play),
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onPressed: _playAll,
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tooltip: '全部播放',
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),
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IconButton(
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icon: const Icon(Icons.refresh),
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onPressed: _loadDirectory,
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tooltip: '刷新',
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),
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],
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),
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body: _isLoading
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? const Center(
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child: CircularProgressIndicator(
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color: Color(0xFFB8D4D0),
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),
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)
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: _errorMessage.isNotEmpty
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? Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(Icons.error_outline,
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size: 48, color: Colors.grey[600]),
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const SizedBox(height: 16),
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Text(
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_errorMessage,
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style: TextStyle(color: Colors.grey[400]),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 16),
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ElevatedButton(
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onPressed: _loadDirectory,
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style: ElevatedButton.styleFrom(
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backgroundColor: const Color(0xFFB8D4D0),
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foregroundColor: Colors.black87,
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),
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child: const Text('重试'),
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),
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],
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),
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)
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: _items.isEmpty
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? Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(Icons.folder_open,
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size: 48, color: Colors.grey[600]),
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const SizedBox(height: 16),
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Text(
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'此目录为空',
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style: TextStyle(color: Colors.grey[400]),
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),
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const SizedBox(height: 8),
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Text(
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'支持格式: MP3, FLAC, M4A, APE, WAV, OPUS',
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style: TextStyle(
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color: Colors.grey[600], fontSize: 12),
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),
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],
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),
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)
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: ListView.builder(
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padding: const EdgeInsets.symmetric(
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horizontal: 16, vertical: 8),
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itemCount: _items.length,
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itemBuilder: (context, index) {
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final item = _items[index];
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return _buildListItem(item);
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},
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),
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);
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}
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// ============================================================
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// 构建列表项
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// ============================================================
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Widget _buildListItem(WebDAVItem item) {
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final displayName = _safeDecode(item.name);
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if (item.isDirectory) {
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return ListTile(
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contentPadding: const EdgeInsets.symmetric(horizontal: 4, vertical: 2),
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leading: const Icon(
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Icons.folder_outlined,
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color: Color(0xFFB8D4D0),
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size: 32,
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),
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title: Text(
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displayName,
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style: const TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.w500,
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color: Colors.white,
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),
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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subtitle: Text(
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'文件夹',
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style: TextStyle(
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fontSize: 12,
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color: Colors.grey[500],
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),
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),
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trailing: const Icon(
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Icons.chevron_right,
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color: Colors.grey,
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),
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onTap: () => _enterDirectory(item),
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);
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} else {
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final sizeStr = item.size != null
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? '${(item.size! / 1024 / 1024).toStringAsFixed(1)} MB'
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: '';
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return ListTile(
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contentPadding: const EdgeInsets.symmetric(horizontal: 4, vertical: 2),
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leading: const Icon(
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Icons.audiotrack,
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color: Color(0xFFB8D4D0),
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size: 28,
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),
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title: Text(
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displayName,
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style: const TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.w400,
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color: Colors.white,
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),
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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subtitle: Text(
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sizeStr,
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style: TextStyle(
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fontSize: 12,
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color: Colors.grey[500],
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),
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),
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trailing: IconButton(
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icon: const Icon(Icons.play_arrow, color: Color(0xFFB8D4D0)),
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onPressed: () => _playSong(item),
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),
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onTap: () => _playSong(item),
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);
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}
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}
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}
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