package chess.controller.commands;

import chess.controller.Command;
import chess.controller.PlayerCommand;
import chess.controller.event.GameListener;
import chess.model.Game;

/**
 * Command to undo the last action.
 */
public class UndoCommand extends Command{

	@Override
	public CommandResult execute(Game game, GameListener outputSystem) {
		PlayerCommand lastAction = game.getLastAction();
		if (lastAction == null) 
			return CommandResult.NotAllowed;
		
		return lastAction.undo(game, outputSystem);
	}
	
}