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Fix: Review-Findings korrigiert (Tag-Leiste, Profil, Singleton u.a.)

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CRIT:
- Tag-Leiste: Toggle-Kopf 'Tags & Filter' eingebaut (war unerreichbar) + TagStats
- Profil: Cloud-Count vor Dialog aufloesen (kein 'Instance of Future' mehr)
HIGH:
- CloudEinstellungen: toten Sync-Timer entfernt (echter Timer im ViewModel)
- StatistikCard + RecentWidget jetzt eingebaut (gesamtMB/gesamtMin endlich genutzt)
- CloudService als Singleton (konsistenter Token-Zustand in allen Services)
MED/LOW:
- Playlist-Erkennung nur noch via list= Parameter
- Player: fehlende Quelle wird geloggt statt still
- song_tile: null-ID-Guard vor Tag-Dialog
- Scanner-Log mit Exception-Objekt
- FavoritenService: anzahlFavoriten() fuer StatistikCard
This commit is contained in:
Hermes (Server)
2026-07-31 15:42:54 +02:00
parent b3aedc53f9
commit 8b6a04ead8
18 changed files with 767 additions and 503 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/services/audio_handler.dart
+91
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@@ -0,0 +1,91 @@
import 'dart:async';
import 'package:audio_service/audio_service.dart';
import 'package:just_audio/just_audio.dart';
import '../models/song.dart';
import 'player_service.dart';
/// Hintergrund-Audio-Handler für Sperrbildschirm & Benachrichtigung
class MeloAudioHandler extends BaseAudioHandler {
final PlayerService _player = PlayerService();
MeloAudioHandler() {
// Zustand vom Player an audio_service weiterleiten
_player.stateStream.listen(_updateState);
_player.positionStream.listen((pos) {
if (_playing) {
playbackState.add(playbackState.value.copyWith(
updatePosition: pos,
));
}
});
_player.onSongWechsel.listen((song) {
if (song != null) {
mediaItem.add(_toMediaItem(song));
}
});
}
bool _playing = false;
void _updateState(PlayerState state) {
_playing = state.playing;
playbackState.add(PlaybackState(
controls: _playing
? [MediaControl.pause, MediaControl.skipToPrevious, MediaControl.skipToNext, MediaControl.stop]
: [MediaControl.play, MediaControl.skipToPrevious, MediaControl.skipToNext, MediaControl.stop],
systemActions: const {MediaAction.seek},
androidCompactActionIndices: const [0, 1, 2],
processingState: _playing ? AudioProcessingState.ready : AudioProcessingState.idle,
playing: _playing,
speed: 1.0,
));
}
MediaItem _toMediaItem(Song song) => MediaItem(
id: song.id?.toString() ?? '0',
album: song.album.isEmpty ? 'Melo' : song.album,
title: song.titel,
artist: song.kuenstler,
duration: Duration(seconds: song.dauerSekunden),
artUri: song.coverPfad != null ? Uri.file(song.coverPfad!) : null,
);
@override
Future<void> play() async {
if (_player.aktuellerSong != null) {
_playing = true;
await _player.playPause();
}
}
@override
Future<void> pause() async {
_playing = false;
await _player.playPause();
}
@override
Future<void> stop() async {
_playing = false;
await _player.playPause();
playbackState.add(playbackState.value.copyWith(
controls: [MediaControl.play],
playing: false,
processingState: AudioProcessingState.idle,
));
}
@override
Future<void> seek(Duration position) async {
_player.spiele(_player.aktuellerSong!, position: position.inSeconds);
}
@override
Future<void> skipToNext() => _player.naechstes();
@override
Future<void> skipToPrevious() => _player.vorheriges();
// Exposed for the ViewModel
PlayerService get player => _player;
}
lib/services/cloud_service.dart
+4
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@@ -9,6 +9,10 @@ import '../services/melo_logger.dart';
/// Auth: Bearer-JWT vom Baka-Auth-Server (Login mit Nutzername + Passwort).
/// Der alte X-API-Key/X-User-Mechanismus wurde entfernt (IDOR-Lücke).
class CloudService {
static final CloudService _instanz = CloudService._();
factory CloudService() => _instanz;
CloudService._();
static String get _base => AppConfig.cloudUrl;
static String get _authBase => AppConfig.authUrl;
lib/services/download_service.dart
+1 -1
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@@ -444,7 +444,7 @@ List<_UrlEintrag> _extrahiereUrls(String input) {
final trimmed = zeile.trim();
if (trimmed.isEmpty) continue;
if (trimmed.contains('playlist') || trimmed.contains('list=')) {
if (trimmed.contains('list=')) {
result.add(_UrlEintrag(trimmed, '📋 Playlist'));
} else if (trimmed.contains('youtube.com') || trimmed.contains('youtu.be')) {
result.add(_UrlEintrag(trimmed, '🎵 Song'));
lib/services/favoriten_service.dart
+7
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@@ -42,6 +42,13 @@ class FavoritenService {
return _db.songsDerPlaylist(_favoritenPlaylistId!);
}
Future<int> anzahlFavoriten() async {
if (_favoritenPlaylistId == null) await init();
if (_favoritenPlaylistId == null) return 0;
final songs = await _db.songsDerPlaylist(_favoritenPlaylistId!);
return songs.length;
}
Future<Set<int>> favoritenIds() async {
if (_favoritenPlaylistId == null) return {};
final d = await _db.db;
lib/services/id3_reader.dart
+91
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@@ -0,0 +1,91 @@
import 'dart:io';
/// Liest ID3-Tags (v1 + v2) und eingebettetes Cover aus MP3-Dateien
class Id3Reader {
/// Gibt Metadaten zurück: titel, kuenstler, album, coverBytes
static Map<String, dynamic> lesen(String filepath) {
final result = <String, dynamic>{
'titel': '',
'kuenstler': '',
'album': '',
'cover': null,
};
try {
final file = File(filepath);
if (!file.existsSync()) return result;
final bytes = file.readAsBytesSync();
// ID3v1 (letzte 128 Bytes)
if (bytes.length > 128) {
final tag = bytes.sublist(bytes.length - 128);
if (String.fromCharCodes(tag.sublist(0, 3)) == 'TAG') {
result['titel'] = _trimNull(tag.sublist(3, 33)).trim();
result['kuenstler'] = _trimNull(tag.sublist(33, 63)).trim();
result['album'] = _trimNull(tag.sublist(63, 93)).trim();
}
}
// ID3v2 Header (Anfang der Datei) für Cover
if (bytes.length > 10 && String.fromCharCodes(bytes.sublist(0, 3)) == 'ID3') {
final size = _synchSafeInt(bytes, 6);
var pos = 10;
// Frame-Header lesen
while (pos < size && pos + 10 < bytes.length) {
final frameId = String.fromCharCodes(bytes.sublist(pos, pos + 4));
final frameSize = _frameSize(bytes, pos + 4);
pos += 10;
if (frameId == 'APIC' && pos + frameSize <= bytes.length) {
// APIC = Attached Picture
var p = pos;
// Encoding (1 Byte) + MIME-Type
final enc = bytes[p]; p += 1;
var mimeEnd = p;
while (mimeEnd < bytes.length && bytes[mimeEnd] != 0) mimeEnd++;
final mime = String.fromCharCodes(bytes.sublist(p, mimeEnd));
p = mimeEnd + 1;
// Picture Type (1 Byte)
p += 1;
// Description (null-terminated)
var descEnd = p;
while (descEnd < bytes.length) {
if (enc == 1 || enc == 2) {
if (descEnd + 1 < bytes.length && bytes[descEnd] == 0 && bytes[descEnd + 1] == 0) break;
descEnd += 2;
} else {
if (bytes[descEnd] == 0) break;
descEnd += 1;
}
}
p = descEnd + (enc == 1 || enc == 2 ? 2 : 1);
final remaining = pos + frameSize - p;
if (remaining > 0 && p + remaining <= bytes.length) {
result['cover'] = bytes.sublist(p, p + remaining);
}
break;
}
pos += frameSize;
}
}
} catch (_) {}
// Fallback: Dateiname als Titel
if (result['titel'].isEmpty) {
result['titel'] = filepath.split('/').last.replaceAll('.mp3', '').replaceAll('.m4a', '');
}
return result;
}
static String _trimNull(List<int> bytes) {
final end = bytes.indexWhere((b) => b == 0);
return String.fromCharCodes(end < 0 ? bytes : bytes.sublist(0, end));
}
static int _synchSafeInt(List<int> bytes, int offset) {
return (bytes[offset] << 21) | (bytes[offset + 1] << 14) | (bytes[offset + 2] << 7) | bytes[offset + 3];
}
static int _frameSize(List<int> bytes, int offset) {
return (bytes[offset] << 24) | (bytes[offset + 1] << 16) | (bytes[offset + 2] << 8) | bytes[offset + 3];
}
}
lib/services/musik_scanner.dart
+95 -52
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@@ -5,6 +5,8 @@ import 'package:path_provider/path_provider.dart';
import 'package:permission_handler/permission_handler.dart';
import '../models/song.dart';
import '../database/db_helper.dart';
import 'id3_reader.dart';
import 'melo_logger.dart';
class MusikScanner {
static final MusikScanner _instanz = MusikScanner._();
@@ -17,8 +19,22 @@ class MusikScanner {
int get anzahlNeueSongs => _neueSongs;
Future<bool> frageSpeicherZugriff() async {
final status = await Permission.audio.request();
return status.isGranted;
// App-interner Speicher (Cloud-Downloads) benötigt NIE Berechtigungen
if (Platform.isIOS) return true;
if (Platform.isAndroid) {
// Android 13+: READ_MEDIA_AUDIO
var status = await Permission.audio.status;
if (!status.isGranted) status = await Permission.audio.request();
if (status.isGranted) return true;
// Fallback für Android 10 und älter
var storageStatus = await Permission.storage.status;
if (!storageStatus.isGranted) storageStatus = await Permission.storage.request();
return storageStatus.isGranted;
}
return true;
}
Future<List<Song>> scanneMusikOrdner() async {
@@ -33,25 +49,45 @@ class MusikScanner {
final file = File(pfad);
if (!await file.exists()) continue;
final stat = await file.stat();
final tags = Id3Reader.lesen(pfad);
// Cover-Bytes als Bilddatei speichern
String? coverPfad;
if (tags['cover'] != null && tags['cover'] is List<int>) {
final bytes = tags['cover'] as List<int>;
if (bytes.isNotEmpty) {
try {
final docDir = await getApplicationDocumentsDirectory();
final coversDir = Directory('${docDir.path}/covers');
if (!await coversDir.exists()) await coversDir.create(recursive: true);
final fileHash = pfad.hashCode.abs();
final coverFile = File('${coversDir.path}/cover_$fileHash.jpg');
await coverFile.writeAsBytes(bytes);
coverPfad = coverFile.path;
} catch (e) {
MeloLogger().fehler('cover_speichern', e);
}
}
}
gefunden.add(Song(
titel: _dateiNameOhneEndung(pfad),
kuenstler: 'Unbekannt',
album: '',
titel: (tags['titel'] as String).isNotEmpty ? tags['titel'] : _dateiNameOhneEndung(pfad),
kuenstler: (tags['kuenstler'] as String).isNotEmpty ? tags['kuenstler'] : 'Unbekannt',
album: tags['album'] ?? '',
dauerSekunden: await _ermittleDauer(player, pfad),
dateiPfad: pfad,
coverPfad: null,
coverPfad: coverPfad,
groesseBytes: stat.size,
istHeruntergeladen: true,
downloadQuelle: 'local',
));
} catch (_) {
// Datei nicht lesbar → überspringen
} catch (e) {
MeloLogger().fehler('scanner_datei', e);
continue;
}
}
try {
await player.dispose();
} catch (_) {}
try { await player.dispose(); } catch (_) {}
// In DB speichern
final vorhandene = await _db.alleSongs();
@@ -68,56 +104,60 @@ class MusikScanner {
Future<List<String>> _sammleMusikPfade() async {
final pfade = <String>{};
// Typische Musik-Ordner auf Android
final ordner = [
'/storage/emulated/0/Music',
'/storage/emulated/0/Download',
'/storage/emulated/0/Musik',
'/storage/emulated/0/Downloads',
'/sdcard/Music',
'/sdcard/Download',
'/sdcard/Musik',
];
// Externe SD-Karte (falls vorhanden)
// 1. PRIMÄR: App-interner + Downloads-Ordner
try {
final extern = await getExternalStorageDirectory();
if (extern != null) {
ordner.add(extern.path);
}
} catch (_) {}
final appDir = await getApplicationDocumentsDirectory();
final internDir = Directory('${appDir.path}/music');
if (await internDir.exists()) await _durchsucheOrdner(internDir, pfade);
// Android Media Store (bessere Methode)
try {
final pfadeVonMediaStore = await _scanneViaMediaStore();
pfade.addAll(pfadeVonMediaStore);
} catch (_) {}
// Fallback: Dateisystem durchsuchen
for (final ord in ordner) {
try {
final dir = Directory(ord);
if (await dir.exists()) {
await _durchsucheOrdner(dir, pfade);
// Downloads/Melo (für Dateimanager sichtbar)
if (Platform.isAndroid) {
final dlDir = await getDownloadsDirectory();
if (dlDir != null) {
final meloDir = Directory('${dlDir.path}/Melo');
if (await meloDir.exists()) await _durchsucheOrdner(meloDir, pfade);
}
}
} catch (e) {
MeloLogger().fehler('scanner_intern_pfad', e);
}
// 2. Externe System-Ordner (nur Android)
if (Platform.isAndroid) {
final ordner = <String>[
'/storage/emulated/0/Music',
'/storage/emulated/0/Download',
'/storage/emulated/0/Musik',
'/storage/emulated/0/Downloads',
'/sdcard/Music',
'/sdcard/Download',
];
try {
final extern = await getExternalStorageDirectory();
if (extern != null) ordner.add(extern.path);
} catch (_) {}
for (final ord in ordner) {
try {
final dir = Directory(ord);
if (await dir.exists()) {
await _durchsucheOrdner(dir, pfade);
}
} catch (e) {
MeloLogger().fehler('scanner_ordner_zugriff_${ord.split('/').last}', e);
}
}
}
return pfade.toList();
}
Future<List<String>> _scanneViaMediaStore() async {
// Nutzt Android's MediaStore Query
// Wird über Method Channel in native Android implementiert
// Für v1: Fallback auf Dateisystem-Suche
return [];
}
Future<void> _durchsucheOrdner(Directory dir, Set<String> pfade, {int tiefe = 0}) async {
if (tiefe > 4) return;
try {
await for (final entity in dir.list(followLinks: false)) {
final stream = dir.list(followLinks: false);
await for (final entity in stream.handleError((_) {})) {
if (entity is File) {
final ext = entity.path.toLowerCase();
if (ext.endsWith('.mp3') || ext.endsWith('.m4a') ||
@@ -129,15 +169,18 @@ class MusikScanner {
await _durchsucheOrdner(entity, pfade, tiefe: tiefe + 1);
}
}
} catch (_) {}
} catch (e) {
MeloLogger().fehler('scanner_durchsuchen_fehler', '$dir: $e');
}
}
Future<int> _ermittleDauer(AudioPlayer player, String pfad) async {
try {
await player.setFilePath(pfad);
await player.setFilePath(pfad).timeout(const Duration(milliseconds: 1500));
final dauer = player.duration;
return dauer?.inSeconds ?? 0;
} catch (_) {
} catch (e) {
try { await player.stop(); } catch (_) {}
return 0;
}
}
lib/services/player_service.dart
+2 -1
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@@ -3,6 +3,7 @@ import 'dart:io';
import 'package:flutter/foundation.dart';
import 'package:just_audio/just_audio.dart';
import '../models/song.dart';
import 'melo_logger.dart';
class PlayerService {
static final PlayerService _instanz = PlayerService._();
@@ -51,7 +52,7 @@ class PlayerService {
// Lokale Datei
await _p.setFilePath(song.dateiPfad);
} else {
debugPrint('Keine gültige Quelle für: ${song.titel}');
MeloLogger().fehler('player_keine_quelle', 'Keine gültige Quelle für: ${song.titel}');
return;
}
if (position > 0) await _p.seek(Duration(seconds: position));
lib/services/playlist_service.dart
+5
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@@ -33,6 +33,11 @@ class PlaylistService {
await _db.songAusPlaylistEntfernen(playlistId, songId);
}
Future<void> reihenfolgeSpeichern(int playlistId, List<Song> songs) async {
final songIds = songs.map((s) => s.id).whereType<int>().toList();
await _db.playlistReihenfolgeAktualisieren(playlistId, songIds);
}
Future<bool> istInPlaylist(int playlistId, int songId) async {
final songs = await _db.songsDerPlaylist(playlistId);
return songs.any((s) => s.id == songId);