/*
 *  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
 * 
 *  Redistribution and use in source and binary forms, with or without modification, are
 *  permitted provided that the following conditions are met:
 * 
 *     1. Redistributions of source code must retain the above copyright notice, this list of
 *        conditions and the following disclaimer.
 * 
 *     2. Redistributions in binary form must reproduce the above copyright notice, this list
 *        of conditions and the following disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 * 
 *  THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
 *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 *  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
 *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 *  The views and conclusions contained in the software and documentation are those of the
 *  authors and should not be interpreted as representing official policies, either expressed
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 */

package mage.target;

import java.util.UUID;
import mage.Constants.Outcome;
import mage.abilities.Ability;
import mage.game.Game;
import mage.players.Player;

/**
 *
 * @author BetaSteward_at_googlemail.com
 */
public abstract class TargetAmount<T extends TargetAmount<T>> extends TargetImpl<T> {

	int amount;
	int remainingAmount;

	public TargetAmount(int amount) {
		this.amount = amount;
		this.remainingAmount = amount;
		this.required = true;
	}

	public TargetAmount(final TargetAmount target) {
		super(target);
		this.amount = target.amount;
		this.remainingAmount = target.remainingAmount;
	}

	public int getAmountRemaining() {
		return remainingAmount;
	}

	@Override
	public boolean isChosen() {
		return doneChosing();
	}

	@Override
	public boolean doneChosing() {
		return remainingAmount == 0;
	}

	@Override
	public void clearChosen() {
		super.clearChosen();
		remainingAmount = amount;
	}

	@Override
	public void addTarget(UUID id, int amount, Ability source, Game game) {
		if (amount <= remainingAmount) {
			super.addTarget(id, amount, source, game);
			remainingAmount -= amount;
		}
	}

	@Override
	public boolean chooseTarget(Outcome outcome, UUID playerId, Ability source, Game game) {
		Player player = game.getPlayer(playerId);
		chosen = remainingAmount == 0;
		while (remainingAmount > 0) {
			if (!player.chooseTargetAmount(outcome, this, source, game)) {
				return chosen;
			}
			chosen = remainingAmount == 0;
		}
		return chosen = true;
	}

}