refactor: Init timeslots with virtual state

src/aura_engine/scheduling/api.py

@@ -174,32 +174,44 @@ class ApiFetcher(threading.Thread):
                 id=api_ts.show.id,
                 name=api_ts.show.name,
             )
-            episode = Episode(id=ep.id, title=ep.title) if (ep := api_ts.episode) and ep else None
+            episode = None
+            memo = None
+            if api_ts.timeslot:
+                memo = api_ts.timeslot.memo
+            if (ep := api_ts.episode) and ep:
+                episode = Episode(id=ep.id, title=ep.title, memo=memo)
+
             # TODO resolve timeslot referenced by `repetition_id`
             timeslot = Timeslot(
                 id=api_ts.id,
+                virtual=False if api_ts.timeslot_id else True,
                 repetition_id=api_ts.timeslot.repetition_of_id if api_ts.timeslot else None,
                 start=api_ts.start.timestamp(),
                 end=api_ts.end.timestamp(),
                 show=show,
                 episode=episode,
             )
-            # Fetch playlists for timeslot
-            playlist_timeslot = None
-            playlist_schedule = None
-            playlist_show = None
-
-            if (ts := api_ts.timeslot) and ts and (plid := ts.playlist_id) and plid:
-                playlist_timeslot = self.fetch_playlist(plid)
-            if (sc := api_ts.schedule) and sc and (plid := sc.default_playlist_id) and plid:
-                playlist_schedule = self.fetch_playlist(plid)
-            if (sh := api_ts.show) and sh and (plid := sh.default_playlist_id):
-                playlist_show = self.fetch_playlist(plid)
-
-            timeslot.set_playlists(playlist_timeslot, playlist_schedule, playlist_show)
-            self.expand_item_duration(playlist_timeslot)
-            self.expand_item_duration(playlist_schedule)
-            self.expand_item_duration(playlist_show)
+
+            # Virtual timeslot do not have media-sources assigned,
+            # therefore no playlists need to be fetched.
+            if not timeslot.is_virtual():
+
+                # Fetch playlists for timeslot
+                playlist_timeslot = None
+                playlist_schedule = None
+                playlist_show = None
+
+                if (ts := api_ts.timeslot) and ts and (plid := ts.playlist_id) and plid:
+                    playlist_timeslot = self.fetch_playlist(plid)
+                if (sc := api_ts.schedule) and sc and (plid := sc.default_playlist_id) and plid:
+                    playlist_schedule = self.fetch_playlist(plid)
+                if (sh := api_ts.show) and sh and (plid := sh.default_playlist_id):
+                    playlist_show = self.fetch_playlist(plid)
+
+                timeslot.set_playlists(playlist_timeslot, playlist_schedule, playlist_show)
+                self.expand_item_duration(playlist_timeslot)
+                self.expand_item_duration(playlist_schedule)
+                self.expand_item_duration(playlist_show)
             timeslots.append(timeslot)
 
         return timeslots