fix: preserve composer metadata across qobuz and history

go_backend/qobuz.go

@@ -55,6 +55,7 @@ const (
 	qobuzTrackPlayBaseURL   = "https://play.qobuz.com/track/"
 	qobuzStoreBaseURL       = "https://www.qobuz.com/us-en"
 	qobuzDownloadAPIURL     = "https://dl.musicdl.me/qobuz/download"
+	qobuzZarzDownloadAPIURL = "https://api.zarz.moe/dl/qbz"
 	qobuzDabMusicAPIURL     = "https://dabmusic.xyz/api/stream?trackId="
 	qobuzDeebAPIURL         = "https://dab.yeet.su/api/stream?trackId="
 	qobuzAfkarAPIURL        = "https://qbz.afkarxyz.qzz.io/api/track/"
@@ -105,6 +106,10 @@ type QobuzTrack struct {
 		ID   int64  `json:"id"`
 		Name string `json:"name"`
 	} `json:"performer"`
+	Composer struct {
+		ID   int64  `json:"id"`
+		Name string `json:"name"`
+	} `json:"composer"`
 }
 
 type qobuzImageSet struct {
@@ -349,6 +354,7 @@ func qobuzTrackToTrackMetadata(track *QobuzTrack) TrackMetadata {
 		AlbumID:     qobuzPrefixedID(track.Album.ID),
 		ArtistID:    qobuzTrackArtistID(track),
 		AlbumType:   qobuzTrackAlbumType(track),
+		Composer:    strings.TrimSpace(track.Composer.Name),
 	}
 }
 
@@ -373,6 +379,7 @@ func qobuzTrackToAlbumTrackMetadata(track *QobuzTrack) AlbumTrackMetadata {
 		AlbumID:     qobuzPrefixedID(track.Album.ID),
 		AlbumURL:    fmt.Sprintf("https://play.qobuz.com/album/%s", strings.TrimSpace(track.Album.ID)),
 		AlbumType:   qobuzTrackAlbumType(track),
+		Composer:    strings.TrimSpace(track.Composer.Name),
 	}
 }
 
@@ -1133,6 +1140,7 @@ func (q *QobuzDownloader) GetArtistMetadata(resourceID string) (*ArtistResponseP
 func (q *QobuzDownloader) GetAvailableAPIs() []string {
 	return []string{
 		qobuzDownloadAPIURL,
+		qobuzZarzDownloadAPIURL,
 		qobuzDabMusicAPIURL,
 		qobuzDeebAPIURL,
 		qobuzAfkarAPIURL,
@@ -1154,6 +1162,7 @@ const (
 func (q *QobuzDownloader) GetAvailableProviders() []qobuzAPIProvider {
 	return []qobuzAPIProvider{
 		{Name: "musicdl", URL: qobuzDownloadAPIURL, Kind: qobuzAPIKindMusicDL},
+		{Name: "zarz", URL: qobuzZarzDownloadAPIURL, Kind: qobuzAPIKindMusicDL},
 		{Name: "dabmusic", URL: qobuzDabMusicAPIURL, Kind: qobuzAPIKindStandard},
 		{Name: "deeb", URL: qobuzDeebAPIURL, Kind: qobuzAPIKindStandard},
 		{Name: "qbz", URL: qobuzAfkarAPIURL, Kind: qobuzAPIKindStandard},

go_backend/qobuz_test.go

@@ -241,12 +241,13 @@ func TestExtractQobuzAlbumIDsFromArtistHTML(t *testing.T) {
 
 func TestQobuzAvailableProviders(t *testing.T) {
 	providers := NewQobuzDownloader().GetAvailableProviders()
-	if len(providers) != 5 {
-		t.Fatalf("expected 5 Qobuz providers, got %d", len(providers))
+	if len(providers) != 6 {
+		t.Fatalf("expected 6 Qobuz providers, got %d", len(providers))
 	}
 
 	want := map[string]string{
 		"musicdl":  qobuzAPIKindMusicDL,
+		"zarz":     qobuzAPIKindMusicDL,
 		"dabmusic": qobuzAPIKindStandard,
 		"deeb":     qobuzAPIKindStandard,
 		"qbz":      qobuzAPIKindStandard,
@@ -518,3 +519,37 @@ func TestQobuzTrackMatchesRequest_SongLinkBypassesArtistAndTitle(t *testing.T) {
 		t.Fatal("expected SongLink Qobuz source to bypass artist/title verification")
 	}
 }
+
+func TestQobuzTrackMetadataIncludesComposer(t *testing.T) {
+	track := &QobuzTrack{
+		ID:          40681594,
+		Title:       "Sign of the Times",
+		ISRC:        "USSM11703595",
+		Duration:    340,
+		TrackNumber: 1,
+		MediaNumber: 1,
+	}
+	track.Performer.ID = 729886
+	track.Performer.Name = "Harry Styles"
+	track.Composer.ID = 729886
+	track.Composer.Name = "Harry Styles"
+	track.Album.ID = "0886446451985"
+	track.Album.Title = "Harry Styles"
+	track.Album.ReleaseDate = "2017-05-12"
+	track.Album.TracksCount = 10
+	track.Album.ReleaseType = "album"
+	track.Album.ProductType = "album"
+	track.Album.Artist.ID = 729886
+	track.Album.Artist.Name = "Harry Styles"
+	track.Album.Artists = []qobuzArtistRef{{ID: 729886, Name: "Harry Styles"}}
+
+	trackMeta := qobuzTrackToTrackMetadata(track)
+	if trackMeta.Composer != "Harry Styles" {
+		t.Fatalf("track composer = %q", trackMeta.Composer)
+	}
+
+	albumTrackMeta := qobuzTrackToAlbumTrackMetadata(track)
+	if albumTrackMeta.Composer != "Harry Styles" {
+		t.Fatalf("album track composer = %q", albumTrackMeta.Composer)
+	}
+}