/*
 *  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
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 *  authors and should not be interpreted as representing official policies, either expressed
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 */
package mage.filter.predicate.mageobject;

import java.util.UUID;
import mage.MageObject;
import mage.abilities.Mode;
import mage.filter.predicate.Predicate;
import mage.game.Game;
import mage.game.stack.StackObject;
import mage.target.Target;

/**
 *
 * @author jeffwadsworth
 */
public class NumberOfTargetsPredicate implements Predicate<MageObject> {

    private final int targets;

    public NumberOfTargetsPredicate(int targets) {
        this.targets = targets;
    }

    @Override
    public boolean apply(MageObject input, Game game) {
        StackObject stackObject = game.getState().getStack().getStackObject(input.getId());
        if (stackObject != null) {
            int numberOfTargets = 0;
            for (UUID modeId : stackObject.getStackAbility().getModes().getSelectedModes()) {
                Mode mode = stackObject.getStackAbility().getModes().get(modeId);
                for (Target target : mode.getTargets()) {
                    numberOfTargets += target.getTargets().size();
                }
            }
            if (numberOfTargets == targets) {
                return true;
            }
        }
//        Spell spell = game.getStack().getSpell(input.getId());
//        if (spell != null) {
//            int numberOfTargets = 0;
//            for (Mode mode : spell.getSpellAbility().getModes().getSelectedModes()) {
//                for (Target target : mode.getTargets()) {
//                    numberOfTargets += target.getTargets().size();
//                }
//            }
//            if (numberOfTargets == targets) {
//                return true;
//            }
//        }
        return false;
    }

    @Override
    public String toString() {
        return "Number of targets(" + targets + ')';
    }
}