def process_read_command(card_serial, username_to_add): # type: (str, Optional[str]) -> None Repository.update_last_used(card_serial) if username_to_add: success = Repository.add_card(username_to_add, card_serial) respond_adder(success, username_to_add, card_serial) if success: Repository.log_message( 'add', '{} ({})'.format(card_serial, username_to_add)) else: Repository.log_message( 'error', 'Failed to add card: {}'.format(card_serial)) return None if not Repository.is_authorized(card_serial): Repository.log_message('reject', str(card_serial)) return None Repository.log_message( 'open', '{} ({})'.format(card_serial, Repository.get_name(card_serial))) Door.open() return None