Files
Melo/lib/library/library_screen.dart
T
Dustin-Mike Jens HähnelandClaude Haiku 4.5 d04783073f Fix critical blocker issues and improve tests
## Critical Blockers Fixed
- Remove playbackState.addError() which broke audio_service permanently
  - Move error handling from audio_handler to song_list where UI context exists
  - Display error in SnackBar instead of destroying playback stream

- Add escapeChar parameter to LIKE queries for correct wildcard handling
  - Fixes broken search for titles with _ or % characters

- Add dismissScanError() method to allow closing error banner
  - Previously banner couldn't be dismissed (missing notifyListeners())

## Improvements
- Remove dead livePaths list, use companions.isNotEmpty instead
- Add initial progress update to show total files when scan starts
- Add tooltip to now_playing_screen Zurück button
- Add proper error handling in song_list with async/await

## Testing
- Add regression test for CRITICAL-1: empty scan doesn't delete songs
- Add regression test for CRITICAL-2: tombstoned files restore on re-scan
- All 11 tests pass

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2026-08-16 19:09:00 +02:00

121 lines
3.7 KiB
Dart

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'database.dart';
import 'library_service.dart';
import 'permissions.dart';
import 'song_list.dart';
class LibraryScreen extends StatelessWidget {
const LibraryScreen({super.key});
@override
Widget build(BuildContext context) {
final db = context.read<MeloDb>();
final lib = context.watch<LibraryService>();
return Scaffold(
appBar: AppBar(
title: const Text('Bibliothek'),
actions: [
IconButton(
tooltip: addMusicLabel,
icon: const Icon(Icons.create_new_folder_outlined),
onPressed: lib.scanning ? null : lib.pickFolderAndScan,
),
IconButton(
tooltip: 'Erneut scannen',
icon: const Icon(Icons.refresh),
onPressed: lib.scanning ? null : lib.rescan,
),
],
),
body: Column(
children: [
if (lib.permissionDenied)
MaterialBanner(
backgroundColor: Colors.red.shade900,
content: const Text('Zugriff auf Musik verweigert. '
'Bitte in den Einstellungen erlauben.'),
actions: [
TextButton(
onPressed: openMusicPermissionSettings,
child: const Text('Einstellungen'),
),
],
),
if (lib.scanError != null)
MaterialBanner(
backgroundColor: Colors.red.shade900,
content: Text(lib.scanError!),
actions: [
TextButton(
onPressed: lib.dismissScanError,
child: const Text('Verwerfen'),
),
],
),
if (lib.scanning)
Padding(
padding: const EdgeInsets.all(12),
child: Column(
children: [
const LinearProgressIndicator(),
const SizedBox(height: 6),
Text(
'Scanne … ${lib.scanDone}'
'${lib.scanTotal > 0 ? ' / ${lib.scanTotal}' : ''}',
style: const TextStyle(color: Colors.white54, fontSize: 12),
),
],
),
),
Expanded(
child: StreamBuilder<List<Song>>(
stream: db.watchSongs(),
builder: (context, snapshot) {
if (snapshot.hasError) {
return Center(
child: Text('Fehler: ${snapshot.error}',
style: const TextStyle(color: Colors.white54)),
);
}
final songs = snapshot.data ?? const [];
if (songs.isEmpty && !lib.scanning) {
return const _Empty();
}
return SongList(songs);
},
),
),
],
),
);
}
}
class _Empty extends StatelessWidget {
const _Empty();
@override
Widget build(BuildContext context) {
final lib = context.read<LibraryService>();
return Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
const Icon(Icons.library_music, size: 64, color: Colors.white24),
const SizedBox(height: 12),
const Text('Noch keine Musik',
style: TextStyle(color: Colors.white54)),
const SizedBox(height: 16),
FilledButton.icon(
icon: const Icon(Icons.create_new_folder_outlined),
label: Text(addMusicLabel),
onPressed: lib.pickFolderAndScan,
),
],
),
);
}
}