package suicideChess;

import suicideChess.Square.NotAValidSquare;

/**
 * @author djib
 * 
 * This file contains the moves representation.
 * 
 * $LastChangedDate$
 * $LastChangedRevision$
 * $LastChangedBy$
 */

public class Move {

	/********
	 * DATA *
	 ********/
	
	//integers 
	private Square fromSquare;
	private Square toSquare;
	private String promotionPiece;
	private boolean isPromotion;

	public class NotAValidMoveException extends Exception {
		/**
		 * Generated by Eclipse
		 */
		private static final long serialVersionUID = 2194133427162274651L;

		NotAValidMoveException(String s) { super(s); };
	}
	
	/***************
	 * CONSTRUCTOR *
	 ***************/
	
	//The string is of type e2e4 (4 chars), b7b8q (5 chars) for promotions
	public Move(String move) throws NotAValidMoveException, NotAValidSquare {
		isPromotion = false;
		promotionPiece = "";
		switch (move.length()) {
			case 5:
				isPromotion = true;
				promotionPiece = move.substring(4,5);
				//no break statement here on purpose
			case 4:
				fromSquare = new Square(move.substring(0,2));
				toSquare = new Square(move.substring(2,4));		
				break;
			default:
				throw new NotAValidMoveException("Invalid Move: "+move);
		}
	}
	
	
	
	/***********
	 * METHODS *
	 ***********/
	
	public Square fromSquare() {
		return fromSquare;
	}
	public Square toSquare() {
		return toSquare;
	}
	public boolean isPromotionMove() {
		return isPromotion;
	}
	public String getPromotionPiece() {
		return promotionPiece;
	}
	
	public void setFromSquare(Square square) {
		fromSquare = square;
	}
	public void setToSquare(Square square) {
		toSquare = square;
	}
	public void setIsPromotionMove(String piece) {
		if (promotionPiece.length()==0) {
			isPromotion=false;
		} else {
			isPromotion=true;
			promotionPiece=piece;
		}
	}
	
	public String toString() {
		return fromSquare.toString()+toSquare+promotionPiece;
	}
}