package chess.controller.commands;

import java.util.ArrayList;
import java.util.List;

import chess.controller.Command;
import chess.controller.event.GameListener;
import chess.model.ChessBoard;
import chess.model.Coordinate;
import chess.model.Game;
import chess.model.Piece;

public class GetAllowedMovesPieceCommand extends Command {

	private final Coordinate start;
	private List<Coordinate> destinations;

	public GetAllowedMovesPieceCommand(Coordinate start) {
		this.start = start;
		this.destinations = new ArrayList<>();
	}

	@Override
	public CommandResult execute(Game game, GameListener outputSystem) {
		final ChessBoard board = game.getBoard();
		Piece piece = board.pieceAt(start);

		if (piece == null)
			return CommandResult.NotAllowed;

		if (piece.getColor() != game.getPlayerTurn())
			return CommandResult.NotAllowed;

		this.destinations = board.getAllowedMoves(start);
		return CommandResult.NotMoved;
	}

	public List<Coordinate> getDestinations() {
		return destinations;
	}
}