added mapping enum

src/music_kraken/database/objects/song.py

@@ -171,7 +171,8 @@ class Song(DatabaseObject):
         self.artist_names = artist_names
         self.tracksort: int | None = tracksort
 
-        self.metadata = Metadata(data=metadata)
+        # self.metadata = Metadata(data=metadata)
+        self.metadata = None
 
         if sources is None:
             sources = []

src/music_kraken/tagging/id3.py

@@ -0,0 +1,61 @@
+from enum import Enum
+
+
+class Mapping(Enum):
+    DATE = "TYER"
+    UNSYNCED_LYRICS = "USLT"
+    TRACKNUMBER = "TRCK"
+    TOTALTRACKS = "TRCK" # Stored in the same frame with TRACKNUMBER, separated by '/': e.g. '4/9'.
+    TITLE = "TIT2"
+    TITLESORTORDER = "TSOT"
+    ENCODING_SETTINGS = "TSSE"
+    SUBTITLE = "TIT3"
+    SET_SUBTITLE = "TSST"
+    RELEASE_DATE = "TDRL"
+    RECORDING_DATES = "TXXX"
+    PUBLISHER_URL = "WPUB"
+    PUBLISHER = "TPUB"
+    RATING = "POPM"
+    PAYMEMT_URL = "WPAY"
+    DISCNUMBER = "TPOS"
+    MOVEMENT_COUNT = "MVIN"
+    TOTALDISCS = "TPOS"
+    ORIGINAL_RELEASE_DATE = "TDOR"
+    ORIGINAL_ARTIST = "TOPE"
+    ORIGINAL_ALBUM = "TOAL"
+    INTERNET_RADIO_WEBPAGE_URL = "WORS"
+    SOURCE_WEBPAGE_URL = "WOAS"
+    FILE_WEBPAGE_URL = "WOAF"
+    ARTIST_WEBPAGE_URL = "WOAR"
+    MOVEMENT_INDEX = "MVIN"
+    MOVEMENT_NAME = "MVNM"
+    MEDIA_TYPE = "TMED"
+    LYRICIST = "TEXT"
+    WRITER = "TEXT"
+    ARTIST = "TPE1"
+    LANGUAGE = "TLAN"
+    ITUNESCOMPILATION = "TCMP"
+    ISRC = "TSRC"
+    REMIXED_BY = "TPE4"
+    RADIO_STATION_OWNER = "TRSO"
+    RADIO_STATION = "TRSN"
+    INITIAL_KEY = "TKEY"
+    OWNER = "TOWN"
+    ENCODED_BY = "TENC"
+    COPYRIGHT_URL = "WCOP"
+    COPYRIGHT = "TCOP"
+    GENRE = "TCON"
+    GROUPING = "TIT1"
+    CONDUCTOR = "TPE3"
+    COMPOSERSORTORDER = "TSOC"
+    COMPOSER = "TCOM"
+    COMMERCIAL_INFORMATION_URL = "WCOM"
+    COMMENT = "COMM"
+    BPM = "TBPM"
+    ALBUM_ARTIST = "TPE2"
+    BAND = "TPE2"
+    ARTISTSORTORDER = "TSOP"
+    ALBUM = "TALB"
+    ALBUMSORTORDER = "TSOA"
+    ALBUMARTISTSORTORDER = "TSO2"
+