refactor: add update playlist method

src/aura_engine/scheduling/domain.py

@@ -34,6 +34,7 @@ import enum
 from typing import NamedTuple
 
 from aura_engine import resources
+from aura_engine.base.lang import synchronized
 from aura_engine.base.utils import SimpleUtil as SU
 from aura_engine.core.channels import GenericChannel
 
@@ -146,6 +147,7 @@ class Playlist:
         """
         return self.shuffle
 
+    @synchronized
     def add(self, item: PlaylistItem) -> None:
         """
         Add an item to the playlist.
@@ -165,6 +167,25 @@ class Playlist:
         item.set_playlist(self)
         self.items.append(item)
 
+    @synchronized
+    def update_playlist(self, playlist: Playlist):
+        """
+        Update the playlist data with the one passed.
+
+        It is important to avoid overwriting any local references, as they might be already in use
+        of scheduling threads.
+
+        Args:
+            playlist (Playlist): Playlist with fresh data.
+        """
+        self.id = playlist.id
+        self.desc = playlist.desc
+        self.shuffle = playlist.shuffle
+        self.items = playlist.get_items()
+        item: PlaylistItem
+        for item in self.get_items():
+            item.set_playlist(self)
+
     def __str__(self) -> str:
         """
         String representation.
@@ -311,7 +332,7 @@ class Timeslot:
 
         self.playlist = Playlists(timeslot=pl_timeslot, schedule=pl_schedule, show=pl_show)
 
-    def get_current_playlist(self):
+    def get_current_playlist(self) -> Playlist:
         """
         Retrieve the playlist to be scheduled.