v1.1.0: Parallel downloads, bug fixes, history persistence

lib/models/download_item.g.dart

@@ -7,21 +7,22 @@ part of 'download_item.dart';
 // **************************************************************************
 
 DownloadItem _$DownloadItemFromJson(Map<String, dynamic> json) => DownloadItem(
-      id: json['id'] as String,
-      track: Track.fromJson(json['track'] as Map<String, dynamic>),
-      service: json['service'] as String,
-      status: $enumDecodeNullable(_$DownloadStatusEnumMap, json['status']) ??
-          DownloadStatus.queued,
-      progress: (json['progress'] as num?)?.toDouble() ?? 0.0,
-      filePath: json['filePath'] as String?,
-      error: json['error'] as String?,
-      createdAt: DateTime.parse(json['createdAt'] as String),
-    );
+  id: json['id'] as String,
+  track: Track.fromJson(json['track'] as Map<String, dynamic>),
+  service: json['service'] as String,
+  status:
+      $enumDecodeNullable(_$DownloadStatusEnumMap, json['status']) ??
+      DownloadStatus.queued,
+  progress: (json['progress'] as num?)?.toDouble() ?? 0.0,
+  filePath: json['filePath'] as String?,
+  error: json['error'] as String?,
+  createdAt: DateTime.parse(json['createdAt'] as String),
+);
 
 Map<String, dynamic> _$DownloadItemToJson(DownloadItem instance) =>
     <String, dynamic>{
       'id': instance.id,
-      'track': instance.track.toJson(),
+      'track': instance.track,
       'service': instance.service,
       'status': _$DownloadStatusEnumMap[instance.status]!,
       'progress': instance.progress,
@@ -37,22 +38,3 @@ const _$DownloadStatusEnumMap = {
   DownloadStatus.failed: 'failed',
   DownloadStatus.skipped: 'skipped',
 };
-
-K? $enumDecodeNullable<K, V>(
-  Map<K, V> enumValues,
-  Object? source, {
-  K? unknownValue,
-}) {
-  if (source == null) {
-    return null;
-  }
-  return enumValues.entries
-      .singleWhere(
-        (e) => e.value == source,
-        orElse: () => throw ArgumentError(
-          '`$source` is not one of the supported values: '
-          '${enumValues.values.join(', ')}',
-        ),
-      )
-      .key;
-}

lib/models/settings.dart

@@ -12,6 +12,7 @@ class AppSettings {
   final bool embedLyrics;
   final bool maxQualityCover;
   final bool isFirstLaunch;
+  final int concurrentDownloads; // 1 = sequential (default), max 3
 
   const AppSettings({
     this.defaultService = 'tidal',
@@ -22,6 +23,7 @@ class AppSettings {
     this.embedLyrics = true,
     this.maxQualityCover = true,
     this.isFirstLaunch = true,
+    this.concurrentDownloads = 1, // Default: sequential (off)
   });
 
   AppSettings copyWith({
@@ -33,6 +35,7 @@ class AppSettings {
     bool? embedLyrics,
     bool? maxQualityCover,
     bool? isFirstLaunch,
+    int? concurrentDownloads,
   }) {
     return AppSettings(
       defaultService: defaultService ?? this.defaultService,
@@ -43,6 +46,7 @@ class AppSettings {
       embedLyrics: embedLyrics ?? this.embedLyrics,
       maxQualityCover: maxQualityCover ?? this.maxQualityCover,
       isFirstLaunch: isFirstLaunch ?? this.isFirstLaunch,
+      concurrentDownloads: concurrentDownloads ?? this.concurrentDownloads,
     );
   }
 

lib/models/settings.g.dart

@@ -7,15 +7,16 @@ part of 'settings.dart';
 // **************************************************************************
 
 AppSettings _$AppSettingsFromJson(Map<String, dynamic> json) => AppSettings(
-      defaultService: json['defaultService'] as String? ?? 'tidal',
-      audioQuality: json['audioQuality'] as String? ?? 'LOSSLESS',
-      filenameFormat: json['filenameFormat'] as String? ?? '{title} - {artist}',
-      downloadDirectory: json['downloadDirectory'] as String? ?? '',
-      autoFallback: json['autoFallback'] as bool? ?? true,
-      embedLyrics: json['embedLyrics'] as bool? ?? true,
-      maxQualityCover: json['maxQualityCover'] as bool? ?? true,
-      isFirstLaunch: json['isFirstLaunch'] as bool? ?? true,
-    );
+  defaultService: json['defaultService'] as String? ?? 'tidal',
+  audioQuality: json['audioQuality'] as String? ?? 'LOSSLESS',
+  filenameFormat: json['filenameFormat'] as String? ?? '{title} - {artist}',
+  downloadDirectory: json['downloadDirectory'] as String? ?? '',
+  autoFallback: json['autoFallback'] as bool? ?? true,
+  embedLyrics: json['embedLyrics'] as bool? ?? true,
+  maxQualityCover: json['maxQualityCover'] as bool? ?? true,
+  isFirstLaunch: json['isFirstLaunch'] as bool? ?? true,
+  concurrentDownloads: (json['concurrentDownloads'] as num?)?.toInt() ?? 1,
+);
 
 Map<String, dynamic> _$AppSettingsToJson(AppSettings instance) =>
     <String, dynamic>{
@@ -27,4 +28,5 @@ Map<String, dynamic> _$AppSettingsToJson(AppSettings instance) =>
       'embedLyrics': instance.embedLyrics,
       'maxQualityCover': instance.maxQualityCover,
       'isFirstLaunch': instance.isFirstLaunch,
+      'concurrentDownloads': instance.concurrentDownloads,
     };

lib/models/track.g.dart

@@ -7,37 +7,38 @@ part of 'track.dart';
 // **************************************************************************
 
 Track _$TrackFromJson(Map<String, dynamic> json) => Track(
-      id: json['id'] as String,
-      name: json['name'] as String,
-      artistName: json['artistName'] as String,
-      albumName: json['albumName'] as String,
-      albumArtist: json['albumArtist'] as String?,
-      coverUrl: json['coverUrl'] as String?,
-      isrc: json['isrc'] as String?,
-      duration: (json['duration'] as num).toInt(),
-      trackNumber: (json['trackNumber'] as num?)?.toInt(),
-      discNumber: (json['discNumber'] as num?)?.toInt(),
-      releaseDate: json['releaseDate'] as String?,
-      availability: json['availability'] == null
-          ? null
-          : ServiceAvailability.fromJson(
-              json['availability'] as Map<String, dynamic>),
-    );
+  id: json['id'] as String,
+  name: json['name'] as String,
+  artistName: json['artistName'] as String,
+  albumName: json['albumName'] as String,
+  albumArtist: json['albumArtist'] as String?,
+  coverUrl: json['coverUrl'] as String?,
+  isrc: json['isrc'] as String?,
+  duration: (json['duration'] as num).toInt(),
+  trackNumber: (json['trackNumber'] as num?)?.toInt(),
+  discNumber: (json['discNumber'] as num?)?.toInt(),
+  releaseDate: json['releaseDate'] as String?,
+  availability: json['availability'] == null
+      ? null
+      : ServiceAvailability.fromJson(
+          json['availability'] as Map<String, dynamic>,
+        ),
+);
 
 Map<String, dynamic> _$TrackToJson(Track instance) => <String, dynamic>{
-      'id': instance.id,
-      'name': instance.name,
-      'artistName': instance.artistName,
-      'albumName': instance.albumName,
-      'albumArtist': instance.albumArtist,
-      'coverUrl': instance.coverUrl,
-      'isrc': instance.isrc,
-      'duration': instance.duration,
-      'trackNumber': instance.trackNumber,
-      'discNumber': instance.discNumber,
-      'releaseDate': instance.releaseDate,
-      'availability': instance.availability?.toJson(),
-    };
+  'id': instance.id,
+  'name': instance.name,
+  'artistName': instance.artistName,
+  'albumName': instance.albumName,
+  'albumArtist': instance.albumArtist,
+  'coverUrl': instance.coverUrl,
+  'isrc': instance.isrc,
+  'duration': instance.duration,
+  'trackNumber': instance.trackNumber,
+  'discNumber': instance.discNumber,
+  'releaseDate': instance.releaseDate,
+  'availability': instance.availability,
+};
 
 ServiceAvailability _$ServiceAvailabilityFromJson(Map<String, dynamic> json) =>
     ServiceAvailability(
@@ -50,12 +51,12 @@ ServiceAvailability _$ServiceAvailabilityFromJson(Map<String, dynamic> json) =>
     );
 
 Map<String, dynamic> _$ServiceAvailabilityToJson(
-        ServiceAvailability instance) =>
-    <String, dynamic>{
-      'tidal': instance.tidal,
-      'qobuz': instance.qobuz,
-      'amazon': instance.amazon,
-      'tidalUrl': instance.tidalUrl,
-      'qobuzUrl': instance.qobuzUrl,
-      'amazonUrl': instance.amazonUrl,
-    };
+  ServiceAvailability instance,
+) => <String, dynamic>{
+  'tidal': instance.tidal,
+  'qobuz': instance.qobuz,
+  'amazon': instance.amazon,
+  'tidalUrl': instance.tidalUrl,
+  'qobuzUrl': instance.qobuzUrl,
+  'amazonUrl': instance.amazonUrl,
+};