Add model for artists

Refs: #143

argos/controllers/helper.py

@@ -1,8 +1,8 @@
 from collections import defaultdict
 from typing import Callable, Dict, List, Mapping, Optional, Sequence
 
-from argos.dto import ArtistDTO, TlTrackDTO, TrackDTO
-from argos.model import TracklistTrackModel, TrackModel
+from argos.dto import AlbumDTO, ArtistDTO, TlTrackDTO, TrackDTO
+from argos.model import AlbumModel, ArtistModel, TracklistTrackModel, TrackModel
 
 
 class ModelHelper:
@@ -12,6 +12,26 @@ class ModelHelper:
 
     """
 
+    def convert_album(self, album_dto: AlbumDTO) -> AlbumModel:
+        album = AlbumModel(
+            uri=album_dto.uri,
+            name=album_dto.name,
+            num_tracks=album_dto.num_tracks,
+            num_discs=album_dto.num_discs,
+            date=album_dto.date,
+        )
+        # TODO album dto has artists
+        return album
+
+    def convert_artist(self, artist_dto: ArtistDTO) -> ArtistModel:
+        artist = ArtistModel(
+            uri=artist_dto.uri,
+            name=artist_dto.name,
+            sortname=artist_dto.name,
+            artist_mbid=artist_dto.musicbrainz_id,
+        )
+        return artist
+
     def convert_track(self, track_dto: TrackDTO) -> TrackModel:
         track = TrackModel(
             uri=track_dto.uri,

argos/model/__init__.py

@@ -1,4 +1,5 @@
 from argos.model.album import AlbumModel
+from argos.model.artist import ArtistModel
 from argos.model.backends import MopidyBackend
 from argos.model.directory import DirectoryModel
 from argos.model.library import LibraryModel
@@ -17,6 +18,7 @@
 
 __all__ = (
     "AlbumModel",
+    "ArtistModel",
     "DirectoryModel",
     "LibraryModel",
     "MixerModel",

argos/model/artist.py

@@ -0,0 +1,43 @@
+import locale
+
+from gi.repository import GObject
+
+
+def compare_artist_by_name_func(
+    a: "ArtistModel",
+    b: "ArtistModel",
+    user_data: None,
+) -> int:
+    names_comp = locale.strcoll(a.sortname, b.sortname)
+    if names_comp != 0:
+        return names_comp
+
+    names_comp = locale.strcoll(a.name, b.name)
+    if names_comp != 0:
+        return names_comp
+
+    if a.uri < b.uri:
+        return -1
+    elif a.uri > b.uri:
+        return 1
+
+    return 0
+
+
+class ArtistInformationModel(GObject.Object):
+    """Model for artist information."""
+
+    abstract = GObject.Property(type=str)
+    last_modified = GObject.Property(type=GObject.TYPE_DOUBLE, default=-1)
+
+
+class ArtistModel(GObject.Object):
+    """Model for an artist."""
+
+    uri = GObject.Property(type=str)
+    name = GObject.Property(type=str)
+    sortname = GObject.Property(type=str)
+    image_path = GObject.Property(type=str)
+    image_uri = GObject.Property(type=str)
+    artist_mbid = GObject.Property(type=str)
+    information = GObject.Property(type=ArtistInformationModel)