first backend frontend split

with docker compose file
nextjs something something
also includes migrations

backend/playlist/models/track.py

@@ -0,0 +1,144 @@
+from django.db import models
+from django.contrib.auth.models import User
+from random import choice
+from .album import Album
+from .artist import Artist
+from .vote import Vote
+from playlist.spotify import spt
+#from playlist.utils import track_from_json
+import re
+
+class TrackManager(models.Manager):
+    def get_queryset(self):
+        return super().get_queryset().filter(old=False)
+
+    def from_json(self, cls, json):
+        try:
+            return cls.objects.get(pk=json["id"])
+        except cls.DoesNotExist:
+            keys = [f.name for f in cls._meta.get_fields()]
+            subset = {key:json[key] for key in set(keys) & set(json.keys())}
+            return cls.objects.create(**subset)
+
+    def track_from_json(self, json):
+        """Creates the track, album and artist from spotify response."""
+        # Album artists
+        album_artists = []
+        for artist in json["album"]["artists"]:
+            album_artists.append(self.from_json(Artist, artist))
+        del json["album"]["artists"]
+
+        # Album
+        album = self.from_json(Album, json["album"])
+        album.image_url = json["album"]["images"][0]["url"]
+        album.save()
+        del json["album"]
+        for artist in album_artists:
+            album.artists.add(artist)
+
+        # Track artists
+        track_artists = []
+        for artist in json["artists"]:
+            track_artists.append(self.from_json(Artist, artist))
+        del json["artists"]
+
+        # Track
+        track = self.from_json(Track, json)
+        for artist in track_artists:
+            track.artists.add(artist)
+        track.album = album
+        track.save()
+        return track
+
+    def create_from_spotify(self, spotify_link, profile):
+        if re.match(r"^https:\/\/spotify.link.*", spotify_link):
+            spotify_link = spt.unshort(spotify_link)
+
+        m = re.match(r"^https:\/\/open.spotify.com\/track\/([a-zA-Z0-9]+)\??", spotify_link)
+        if m is None:
+            return None, Exception("Invalid Spotify track URL")
+
+        spotify_id = m.group(1)
+
+        try:
+            existing_track = self.model.all_tracks.get(pk=spotify_id)
+            if existing_track.old:
+                existing_track.old = False
+                existing_track.user = profile.user
+                existing_track.save()
+                return (existing_track, "Updated old track")
+            else:
+                return (None, "Track already exists")
+        except:
+           pass
+        try:
+            json = spt.get_song_info(spotify_id)
+        except Exception as e:
+            print(e)
+            return (None, "Error fetching track")
+            #return TemplateResponse(request, "Nominate.html", {"message_type": "error", "message": "Fout bij het ophalen van het liedje."})
+
+        track = self.track_from_json(json)
+        track.nominated_by = profile.user
+        track.save()
+        dup = track.is_duplicate_of()
+        if dup:
+            track.delete()
+            return (None, "Track already exists")
+        #get_banter.delay(track.id)
+        profile.quota -= 1
+        profile.save()
+        return (track, None)
+
+class Track(models.Model):
+    def __str__(self):
+        s = f"'{self.name}'"
+        if self.artists.count() > 0:
+            artists = list(map(lambda a:a.name, self.artists.all()))
+            s += " door "
+            s += " & ".join(artists)
+        return s
+    @property
+    def artist(self):
+        if self.artists.count() > 0:
+            artists = list(map(lambda a:a.name, self.artists.all()))
+            return " & ".join(artists)
+
+    @property
+    def name_sanitized(self):
+        return re.match("[^\-\(]*\w", self.name)[0]
+
+    @property
+    def link(self):
+        return f'https://open.spotify.com/track/{self.id}'
+
+    @property
+    def score(self):
+        return Vote.objects.filter(track=self.id).aggregate(rating=models.Avg("points"))["rating"]
+
+    def is_duplicate_of(self):
+        tracks = Track.objects.exclude(id=self.id).filter(name__startswith=self.name_sanitized)
+        artists = [artist.name for artist in self.artists.all()]
+        for artist in artists:
+            tracks = tracks.filter(artists__name__exact=artist)
+        return tracks.first()
+
+
+    id = models.CharField(primary_key=True, max_length=128)
+    nominated_by = models.ForeignKey(User, blank=True, null=True, default=None, on_delete=models.SET_NULL)
+    name = models.CharField(max_length=255)
+    artists = models.ManyToManyField(Artist)
+    album = models.ForeignKey(Album, blank=True, null=True, on_delete=models.SET_NULL)
+
+    explicit = models.BooleanField(default=False)
+    duration_ms = models.PositiveIntegerField(blank=True, null=True)
+    popularity = models.PositiveIntegerField(blank=True, null=True)
+
+    banter = models.TextField(null=True, blank=True)
+    banter_done = models.BooleanField(default=False)
+
+    old = models.BooleanField(default=False)
+    from_playlist = models.CharField(max_length=255, null=True, blank=True, default=None)
+
+    objects = TrackManager()
+    all_tracks = models.Manager()