watch-list catch

v6d3music/utils/argctx.py

@@ -104,6 +104,11 @@ class ArgCtx:
                     raise Explicit(
                         "expected url, got `+` or `-\"` or `-'`. maybe you forgot to separate control symbol from the effects?"
                     )
+                if 'youtu' in url and 'watch' in url and 'list' in url:
+                    raise Explicit(
+                        "bot cannot decide how to handle an URL with both `watch` and `list` in it.\n"
+                        "instead, use either `youtube.com/watch` URL without `&list=` part or `youtube.com/playlist` URL."
+                    )
             match args:
                 case ["-", effects, *args]:
                     pass