fixed migrations

akarpov/music/api/serializers.py

@@ -5,6 +5,7 @@
 from akarpov.common.api.serializers import SetUserModelSerializer
 from akarpov.music.models import (
     Album,
+    AnonMusicUser,
     Author,
     Playlist,
     PlaylistSong,
@@ -198,6 +199,26 @@ def create(self, validated_data):
         return playlist_song
 
 
+class ListenSongSerializer(serializers.Serializer):
+    song = serializers.SlugField()
+    user_id = serializers.CharField(required=False)
+
+    def validate(self, attrs):
+        if not Song.objects.filter(slug=attrs["song"]).exists():
+            raise serializers.ValidationError("Song not found")
+
+        if "user_id" in attrs and attrs["user_id"]:
+            if not AnonMusicUser.objects.filter(id=attrs["user_id"]).exists():
+                raise serializers.ValidationError("User not found")
+        return attrs
+
+
+class AnonMusicUserSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = AnonMusicUser
+        fields = ["id"]
+
+
 class LikeDislikeSongSerializer(serializers.ModelSerializer):
     song = serializers.SlugField()
 
@@ -250,6 +271,10 @@ def create(self, validated_data):
         return song_user_rating
 
 
+class ListSongSlugsSerializer(serializers.Serializer):
+    slugs = serializers.ListField(child=serializers.SlugField())
+
+
 class ListPlaylistSerializer(serializers.ModelSerializer):
     class Meta:
         model = Playlist

akarpov/music/api/urls.py

@@ -2,6 +2,7 @@
 
 from akarpov.music.api.views import (
     AddSongToPlaylistAPIView,
+    CreateAnonMusicUserAPIView,
     DislikeSongAPIView,
     LikeSongAPIView,
     ListAlbumsAPIView,
@@ -13,6 +14,7 @@
     ListLikedSongsAPIView,
     ListPublicPlaylistAPIView,
     ListSongPlaylistsAPIView,
+    ListSongSlugsAPIView,
     ListUserListenedSongsAPIView,
     RemoveSongFromPlaylistAPIView,
     RetrieveUpdateDestroyAlbumAPIView,
@@ -40,6 +42,7 @@
         name="retrieve_update_delete_playlist",
     ),
     path("song/", ListCreateSongAPIView.as_view(), name="list_create_song"),
+    path("song/slugs/", ListSongSlugsAPIView.as_view(), name="list_songs_slugs"),
     path(
         "song/<str:slug>",
         RetrieveUpdateDestroySongAPIView.as_view(),
@@ -76,4 +79,5 @@
         RetrieveUpdateDestroyAuthorAPIView.as_view(),
         name="retrieve_update_delete_author",
     ),
+    path("anon/create/", CreateAnonMusicUserAPIView.as_view(), name="create-anon"),
 ]

akarpov/music/api/views.py

@@ -6,14 +6,17 @@
 from akarpov.common.api.permissions import IsAdminOrReadOnly, IsCreatorOrReadOnly
 from akarpov.music.api.serializers import (
     AddSongToPlaylistSerializer,
+    AnonMusicUserSerializer,
     FullAlbumSerializer,
     FullAuthorSerializer,
     FullPlaylistSerializer,
     LikeDislikeSongSerializer,
     ListAlbumSerializer,
     ListAuthorSerializer,
+    ListenSongSerializer,
     ListPlaylistSerializer,
     ListSongSerializer,
+    ListSongSlugsSerializer,
     PlaylistSerializer,
     SongSerializer,
 )
@@ -78,11 +81,7 @@ def get_queryset(self):
         return qs.select_related("creator")
 
 
-class ListCreateSongAPIView(LikedSongsContextMixin, generics.ListCreateAPIView):
-    serializer_class = ListSongSerializer
-    permission_classes = [IsAdminOrReadOnly]
-    pagination_class = StandardResultsSetPagination
-
+class ListBaseSongAPIView(generics.ListAPIView):
     def get_queryset(self):
         search = self.request.query_params.get("search", None)
         if search:
@@ -114,6 +113,14 @@ def get_queryset(self):
             )
         return qs
 
+
+class ListCreateSongAPIView(
+    LikedSongsContextMixin, generics.ListCreateAPIView, ListBaseSongAPIView
+):
+    serializer_class = ListSongSerializer
+    permission_classes = [IsAdminOrReadOnly]
+    pagination_class = StandardResultsSetPagination
+
     @extend_schema(
         parameters=[
             OpenApiParameter(
@@ -166,6 +173,67 @@ def get(self, request, *args, **kwargs):
         return self.list(request, *args, **kwargs)
 
 
+class ListSongSlugsAPIView(ListBaseSongAPIView):
+    serializer_class = ListSongSlugsSerializer
+    permission_classes = [permissions.AllowAny]
+
+    @extend_schema(
+        parameters=[
+            OpenApiParameter(
+                name="search",
+                description="Search query",
+                required=False,
+                type=str,
+            ),
+            OpenApiParameter(
+                name="sort",
+                description="Sorting algorithm",
+                required=False,
+                type=str,
+                examples=[
+                    OpenApiExample(
+                        "Default",
+                        description="by date added",
+                        value=None,
+                    ),
+                    OpenApiExample(
+                        "played",
+                        description="by total times played",
+                        value="played",
+                    ),
+                    OpenApiExample(
+                        "likes",
+                        description="by total likes",
+                        value="likes",
+                    ),
+                    OpenApiExample(
+                        "likes reversed",
+                        description="by total likes",
+                        value="-likes",
+                    ),
+                    OpenApiExample(
+                        "length",
+                        description="by track length",
+                        value="length",
+                    ),
+                    OpenApiExample(
+                        "uploaded",
+                        description="by date uploaded",
+                        value="uploaded",
+                    ),
+                ],
+            ),
+        ]
+    )
+    def get(self, request, *args, **kwargs):
+        songs = self.get_queryset()
+        return Response(
+            data={
+                "songs": songs.values_list("slug", flat=True),
+            }
+        )
+
+
 class RetrieveUpdateDestroySongAPIView(generics.RetrieveUpdateDestroyAPIView):
     lookup_field = "slug"
     lookup_url_kwarg = "slug"
@@ -314,7 +382,7 @@ class RetrieveUpdateDestroyAuthorAPIView(
 
 
 class ListenSongAPIView(generics.GenericAPIView):
-    serializer_class = LikeDislikeSongSerializer
+    serializer_class = ListenSongSerializer
     permission_classes = [permissions.AllowAny]
 
     def get_queryset(self):
@@ -331,12 +399,25 @@ def post(self, request, *args, **kwargs):
             return Response(status=404)
         if self.request.user.is_authenticated:
             listen_to_song.apply_async(
-                kwargs={"song_id": song.id, "user_id": self.request.user.id},
+                kwargs={
+                    "song_id": song.id,
+                    "user_id": self.request.user.id,
+                    "anon": False,
+                },
+                countdown=2,
+            )
+        elif "user_id" in data:
+            listen_to_song.apply_async(
+                kwargs={
+                    "song_id": song.id,
+                    "user_id": data["user_id"],
+                    "anon": True,
+                },
                 countdown=2,
             )
         else:
             listen_to_song.apply_async(
-                kwargs={"song_id": song.id},
+                kwargs={"song_id": song.id, "user_id": None, "anon": True},
                 countdown=2,
             )
         return Response(status=201)
@@ -353,3 +434,8 @@ def get_queryset(self):
             .filter(user=self.request.user)
             .values_list("song_id", flat=True)
         )
+
+
+class CreateAnonMusicUserAPIView(generics.CreateAPIView):
+    serializer_class = AnonMusicUserSerializer
+    permission_classes = [permissions.AllowAny]

akarpov/music/migrations/0016_anonmusicuser_song_created_song_volume_and_more.py

@@ -0,0 +1,79 @@
+# Generated by Django 4.2.8 on 2024-01-17 13:13
+
+import django.contrib.postgres.fields
+from django.db import migrations, models
+import django.db.models.deletion
+import django.utils.timezone
+import uuid
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("music", "0015_usermusicprofile"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="AnonMusicUser",
+            fields=[
+                (
+                    "id",
+                    models.UUIDField(
+                        default=uuid.uuid4,
+                        editable=False,
+                        primary_key=True,
+                        serialize=False,
+                    ),
+                ),
+            ],
+        ),
+        migrations.AddField(
+            model_name="song",
+            name="created",
+            field=models.DateTimeField(
+                auto_now_add=True, default=django.utils.timezone.now
+            ),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name="song",
+            name="volume",
+            field=django.contrib.postgres.fields.ArrayField(
+                base_field=models.IntegerField(), null=True, size=None
+            ),
+        ),
+        migrations.CreateModel(
+            name="AnonMusicUserHistory",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("created", models.DateTimeField(auto_now_add=True)),
+                (
+                    "song",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="anon_listeners",
+                        to="music.song",
+                    ),
+                ),
+                (
+                    "user",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="songs_listened",
+                        to="music.anonmusicuser",
+                    ),
+                ),
+            ],
+            options={
+                "ordering": ["-created"],
+            },
+        ),
+    ]

akarpov/music/migrations/0016_song_volume.py

@@ -1,20 +0,0 @@
-# Generated by Django 4.2.8 on 2024-01-15 17:28
-
-import django.contrib.postgres.fields
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-    dependencies = [
-        ("music", "0015_usermusicprofile"),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name="song",
-            name="volume",
-            field=django.contrib.postgres.fields.ArrayField(
-                base_field=models.IntegerField(), null=True, size=None
-            ),
-        ),
-    ]

akarpov/music/models.py

@@ -1,3 +1,5 @@
+import uuid
+
 from django.contrib.postgres.fields import ArrayField
 from django.db import models
 from django.urls import reverse
@@ -46,6 +48,7 @@ class Song(BaseImageModel, ShortLinkModel):
     creator = models.ForeignKey(
         "users.User", related_name="songs", on_delete=models.SET_NULL, null=True
     )
+    created = models.DateTimeField(auto_now_add=True)
     meta = models.JSONField(blank=True, null=True)
     likes = models.IntegerField(default=0)
     volume = ArrayField(models.IntegerField(), null=True)
@@ -154,6 +157,29 @@ class Meta:
         ordering = ["-created"]
 
 
+class AnonMusicUser(models.Model):
+    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
+
+    def __str__(self):
+        return f"AnonMusicUser {self.id}"
+
+
+class AnonMusicUserHistory(models.Model):
+    user = models.ForeignKey(
+        "music.AnonMusicUser", related_name="songs_listened", on_delete=models.CASCADE
+    )
+    song = models.ForeignKey(
+        "Song", related_name="anon_listeners", on_delete=models.CASCADE
+    )
+    created = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        ordering = ["-created"]
+
+    def __str__(self):
+        return f"{self.user} - {self.song}"
+
+
 class UserListenHistory(models.Model):
     user = models.ForeignKey(
         "users.User", related_name="songs_listened", on_delete=models.CASCADE

akarpov/music/tasks.py

@@ -1,3 +1,5 @@
+from datetime import timedelta
+
 import pylast
 import structlog
 from asgiref.sync import async_to_sync
@@ -9,7 +11,14 @@
 from pytube import Channel, Playlist
 
 from akarpov.music.api.serializers import SongSerializer
-from akarpov.music.models import RadioSong, Song, UserListenHistory, UserMusicProfile
+from akarpov.music.models import (
+    AnonMusicUser,
+    AnonMusicUserHistory,
+    RadioSong,
+    Song,
+    UserListenHistory,
+    UserMusicProfile,
+)
 from akarpov.music.services import yandex, youtube
 from akarpov.music.services.file import load_dir, load_file
 from akarpov.utils.celery import get_scheduled_tasks_name
@@ -96,7 +105,7 @@ def start_next_song(previous_ids: list):
 
 
 @shared_task
-def listen_to_song(song_id, user_id=None):
+def listen_to_song(song_id, user_id=None, anon=True):
     # protection from multiple listen,
     # check that last listen by user was more than the length of the song
     # and last listened song is not the same
@@ -104,15 +113,38 @@ def listen_to_song(song_id, user_id=None):
     s.played += 1
     s.save(update_fields=["played"])
     if user_id:
+        if anon:
             try:
-            last_listen = UserListenHistory.objects.filter(user_id=user_id).latest("id")
+                anon_user = AnonMusicUser.objects.get(id=user_id)
+            except AnonMusicUser.DoesNotExist:
+                anon_user = AnonMusicUser.objects.create(id=user_id)
+            try:
+                last_listen = AnonMusicUserHistory.objects.filter(
+                    user_id=user_id
+                ).last()
+            except AnonMusicUserHistory.DoesNotExist:
+                last_listen = None
+            if (
+                last_listen
+                and last_listen.song_id == song_id
+                or last_listen
+                and last_listen.created + timedelta(seconds=s.length) > now()
+            ):
+                return
+            AnonMusicUserHistory.objects.create(
+                user=anon_user,
+                song_id=song_id,
+            )
+        else:
+            try:
+                last_listen = UserListenHistory.objects.filter(user_id=user_id).last()
             except UserListenHistory.DoesNotExist:
                 last_listen = None
             if (
                 last_listen
                 and last_listen.song_id == song_id
                 or last_listen
-            and last_listen.created + s.length > now()
+                and last_listen.created + timedelta(seconds=s.length) > now()
             ):
                 return
             UserListenHistory.objects.create(
@@ -133,7 +165,9 @@ def listen_to_song(song_id, user_id=None):
                 artist_name = song.artists_names
                 track_name = song.name
                 timestamp = int(timezone.now().timestamp())
-            network.scrobble(artist=artist_name, title=track_name, timestamp=timestamp)
+                network.scrobble(
+                    artist=artist_name, title=track_name, timestamp=timestamp
+                )
             except UserMusicProfile.DoesNotExist:
                 pass
             except Exception as e: