Wrap MPD's state into a transfer struct before finalising the Song

src/mpd_now_playable/mpd/listener.py

@@ -9,16 +9,17 @@ from yarl import URL
 
 from ..config.model import MpdConfig
 from ..player import Player
-from ..song import Artwork, PlaybackState, Song, to_artwork, to_brainz
+from ..song import PlaybackState, Song, to_artwork, to_brainz
 from ..song_receiver import Receiver
 from ..tools.types import option_fmap, un_maybe_plural
 from .artwork_cache import MpdArtworkCache
-from .types import CurrentSongResponse, StatusResponse
+from .types import MpdState
 
 
-def mpd_current_to_song(
-	status: StatusResponse, current: CurrentSongResponse, art: Artwork
-) -> Song:
+
+def mpd_state_to_song(mpd: MpdState) -> Song:
+	status = mpd.status
+	current = mpd.current
 	return Song(
 		state=PlaybackState(status["state"]),
 		queue_index=int(current["pos"]),
@@ -34,8 +35,8 @@ def mpd_current_to_song(
 		disc=option_fmap(int, current.get("disc")),
 		duration=float(status["duration"]),
 		elapsed=float(status["elapsed"]),
-		musicbrainz=to_brainz(current),
-		art=art,
+		musicbrainz=to_brainz(mpd.current),
+		art=to_artwork(mpd.art),
 	)
 
 
@@ -77,6 +78,7 @@ class MpdStateListener(Player):
 		status, current = await asyncio.gather(
 			self.client.status(), self.client.currentsong()
 		)
+		state = MpdState(status, current)
 
 		if starting_idle_count != self.idle_count:
 			return
@@ -90,7 +92,8 @@ class MpdStateListener(Player):
 		if starting_idle_count != self.idle_count:
 			return
 
-		song = mpd_current_to_song(status, current, to_artwork(art))
+		state = MpdState(status, current, art)
+		song = mpd_state_to_song(state)
 		rprint(song)
 		await self.update(song)
 

src/mpd_now_playable/mpd/types.py

@@ -1,3 +1,4 @@
+from dataclasses import dataclass
 from typing import Literal, NotRequired, Protocol, TypedDict
 
 from ..song.musicbrainz import MusicBrainzTags
@@ -76,3 +77,10 @@ class CurrentSongResponse(CurrentSongTags):
 
 
 ReadPictureResponse = TypedDict("ReadPictureResponse", {"binary": bytes})
+
+
+@dataclass
+class MpdState:
+	status: StatusResponse
+	current: CurrentSongResponse
+	art: bytes | None = None