Implement cleaning up playlist of watched items

plextraktsync/commands/update_playlist.py

@@ -4,6 +4,7 @@
 
 from plextraktsync.decorators.coro import coro
 from plextraktsync.factory import factory
+from plextraktsync.plex.PlexPlaylist import PlexPlaylist
 
 if TYPE_CHECKING:
     from plextraktsync.plex.types import PlexPlayable
@@ -26,7 +27,18 @@ def format_title(p: PlexPlayable):
 @coro
 async def update_playlist(playlist: str, remove_watched: bool, dry_run: bool):
     print = factory.print
-    pl = playlist
-    print(f"Update playlist: '{pl}'")
+    print(f"Update playlist: '{playlist}'")
     print(f"Remove watched from playlist: {remove_watched}")
     print(f"Dry run: {dry_run}")
+
+    pl = PlexPlaylist(factory.plex_server, playlist)
+    print(f"Playlist: {pl}")
+    items = pl.playlist.items().copy()
+    p: PlexPlayable
+    for p in items:
+        if remove_watched and p.isPlayed:
+            print(f"{'Remove' if not dry_run else 'Would remove'} from playlist: {format_title(p)}")
+            items.remove(p)
+    print(f"Update playlist: {len(pl)} -> {len(items)} items")
+    if not dry_run:
+        pl.update(items)