feat(library): M3U8 playlist import and export

The playlist import picker now also accepts .m3u/.m3u8; EXTINF entries feed the same Deezer enrichment pipeline as CSV. Collection screens (wishlist, loved, playlists) gain an export action that resolves each track to its local file, writes SAF entries relative to the download tree root so external players and DAP copies resolve them, skips tracks without a file, and shares the .m3u8 via the system sheet.
2026-08-02 17:18:36 +02:00 · 2026-07-26 17:56:38 +07:00
parent 54dcdb92dd
commit c497449549
30 changed files with 533 additions and 71842 deletions
@@ -0,0 +1,96 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:spotiflac_android/models/track.dart';
+import 'package:spotiflac_android/services/m3u_playlist_service.dart';
+
+void main() {
+  group('parseM3u', () {
+    test('reads EXTINF duration, artist, and title', () {
+      final tracks = M3uPlaylistService.parseM3u('''
+#EXTM3U
+#EXTINF:245,Daft Punk - Harder Better Faster Stronger
+Daft Punk/Discovery/04 Harder Better Faster Stronger.flac
+#EXTINF:-1,Solo Title Only
+music/solo.flac
+''');
+
+      expect(tracks, hasLength(2));
+      expect(tracks[0].name, 'Harder Better Faster Stronger');
+      expect(tracks[0].artistName, 'Daft Punk');
+      expect(tracks[0].duration, 245);
+      expect(tracks[1].name, 'Solo Title Only');
+      expect(tracks[1].artistName, 'Unknown Artist');
+      expect(tracks[1].duration, 0);
+    });
+
+    test('falls back to the file name stem without EXTINF', () {
+      final tracks = M3uPlaylistService.parseM3u('''
+# a comment
+Some Artist - Some Song.mp3
+''');
+
+      expect(tracks, hasLength(1));
+      expect(tracks[0].artistName, 'Some Artist');
+      expect(tracks[0].name, 'Some Song');
+    });
+  });
+
+  group('buildM3u8Content', () {
+    test('writes EXTM3U header and EXTINF entries', () {
+      final content = M3uPlaylistService.buildM3u8Content([
+        M3uExportEntry(
+          track: Track(
+            id: 't1',
+            name: 'Song',
+            artistName: 'Artist',
+            albumName: 'Album',
+            duration: 200,
+            coverUrl: null,
+          ),
+          path: 'Artist/Album/Song.flac',
+        ),
+      ]);
+
+      expect(
+        content,
+        '#EXTM3U\n#EXTINF:200,Artist - Song\nArtist/Album/Song.flac\n',
+      );
+    });
+  });
+
+  group('exportPathFor', () {
+    test('passes plain paths through', () {
+      expect(
+        M3uPlaylistService.exportPathFor('/storage/emulated/0/Music/a.flac'),
+        '/storage/emulated/0/Music/a.flac',
+      );
+    });
+
+    test('makes SAF document URIs relative to their tree root', () {
+      expect(
+        M3uPlaylistService.exportPathFor(
+          'content://com.android.externalstorage.documents/tree/'
+          'primary%3AMusic/document/'
+          'primary%3AMusic%2FArtist%2FAlbum%2Fsong.flac',
+        ),
+        'Artist/Album/song.flac',
+      );
+    });
+
+    test('strips the storage prefix without tree context', () {
+      expect(
+        M3uPlaylistService.exportPathFor(
+          'content://com.android.externalstorage.documents/document/'
+          'primary%3AMusic%2Fsong.flac',
+        ),
+        'Music/song.flac',
+      );
+    });
+
+    test('returns null for content URIs without a document path', () {
+      expect(
+        M3uPlaylistService.exportPathFor('content://media/external/audio/1'),
+        isNull,
+      );
+    });
+  });
+}