add date metadata

internal/metadata/metadata.go

@@ -19,6 +19,7 @@ type Metadata struct {
 	TotalTracks int
 	Comment     *string
 	ISRC        *string
+	Date        *string
 }
 
 func ReadAudioTags(filePath string) (*Metadata, error) {

internal/metadata/vobis.go

@@ -79,12 +79,22 @@ func readVorbisMetadata(file string) (*Metadata, error) {
 		isrc = &isrcs[0]
 	}
 
+	dates, err := cmt.Get("DATE")
+	if err != nil {
+		return nil, err
+	}
+	var date *string
+	if len(dates) > 0 {
+		date = &dates[0]
+	}
+
 	metadata := &Metadata{
 		Title:       title,
 		Artist:      artists,
 		Album:       album,
 		AlbumArtist: albumArtists,
 		Comment:     comment,
+		Date:        date,
 		ISRC:        isrc,
 	}
 
@@ -153,6 +163,10 @@ func createVorbisMetaBlock(m Metadata) flacvorbis.MetaDataBlockVorbisComment {
 		vorbisMeta.Add("ISRC", *m.ISRC)
 	}
 
+	if m.Date != nil {
+		vorbisMeta.Add("DATE", *m.Date)
+	}
+
 	for _, artist := range m.Artist {
 		vorbisMeta.Add(flacvorbis.FIELD_ARTIST, artist)
 		slog.Debug("Added ARTIST filed to metadata", "artist", artist)