updateCurrentUserId method
Updates the current user id when the host app manages connection itself.
Implementation
void updateCurrentUserId(String userId) {
final acceptingEngineEvents = userId.isNotEmpty;
if (_currentUserId == userId &&
_acceptingEngineEvents == acceptingEngineEvents) {
return;
}
_currentUserId = userId;
_acceptingEngineEvents = acceptingEngineEvents;
notifyListeners();
}