package chess.controller.commands;

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

/**
 * Command to check the possible Castling.
 */
public class GetAllowedCastlingsCommand extends Command{

	public enum CastlingResult {
		None, Small, Big, Both;
	}

	private CastlingResult castlingResult;

	public GetAllowedCastlingsCommand() {}

	@Override
	public CommandResult execute(Game game, GameListener outputSystem) {
		boolean canSmallCastle = game.getBoard().canSmallCastle(game.getPlayerTurn());
		boolean canBigCastle = game.getBoard().canBigCastle(game.getPlayerTurn());

		int result = 0;
		if (canSmallCastle)
			result += 1;
		if (canBigCastle)
			result += 2;

		this.castlingResult = CastlingResult.values()[result];

		return CommandResult.NotMoved;
	}

	public CastlingResult getCastlingResult() {
		return castlingResult;
	}
	
}