[charts] Fix chart building

vrobbler/apps/music/views.py

@@ -47,19 +47,28 @@ class ArtistDetailView(generic.DetailView):
     def get_context_data(self, **kwargs):
         context_data = super().get_context_data(**kwargs)
         artist = context_data["object"]
-        rank = 1
-        tracks_ranked = []
-        scrobbles = artist.tracks.first().scrobble_count
-        for track in artist.tracks:
-            if scrobbles > track.scrobble_count:
-                rank += 1
-            tracks_ranked.append((rank, track))
-            scrobbles = track.scrobble_count
+
+        ranked_tracks = sorted(
+            artist.tracks.all(), key=lambda t: t.scrobble_count, reverse=True
+        )[:10]
+
+        tracks_ranked = [
+            (rank, track) for rank, track in enumerate(ranked_tracks, start=1)
+        ]
 
         context_data["tracks_ranked"] = tracks_ranked
         context_data["charts"] = ChartRecord.objects.filter(
             artist=self.object, rank__in=[1, 2, 3]
         )
+
+        from scrobbles.models import Scrobble
+
+        context_data["recent_scrobbles"] = (
+            Scrobble.objects.filter(track__artist=artist)
+            .select_related("track", "track__album")
+            .order_by("-timestamp")[:100]
+        )
+
         return context_data