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 *  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
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 *        conditions and the following disclaimer.
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 *        of conditions and the following disclaimer in the documentation and/or other materials
 *        provided with the distribution.
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package mage.abilities.condition.common;

import mage.abilities.Ability;
import mage.abilities.condition.Condition;
import mage.counters.CounterType;
import mage.game.Game;
import mage.filter.FilterPermanent;
import mage.game.permanent.Permanent;

import java.util.List;

/**
 * @author jeffwadsworth
 */
public class PermanentHasCounterCondition implements Condition {

    public static enum CountType {MORE_THAN, FEWER_THAN, EQUAL_TO}

    ;
    private CounterType counterType;
    private int amount;
    private FilterPermanent filter;
    private CountType type;

    public PermanentHasCounterCondition(CounterType counterType, int amount, FilterPermanent filter) {
        this(counterType, amount, filter, CountType.EQUAL_TO);
    }

    public PermanentHasCounterCondition(CounterType counterType, int amount, FilterPermanent filter, CountType type) {
        this.counterType = counterType;
        this.amount = amount;
        this.filter = filter;
        this.type = type;
    }

    @Override
    public boolean apply(Game game, Ability source) {
        boolean conditionApplies = false;
        List<Permanent> permanents = game.getBattlefield().getAllActivePermanents(this.filter, source.getControllerId(), game);
        for (Permanent permanent : permanents) {
            switch (this.type) {
                case FEWER_THAN:
                    if (permanent.getCounters().getCount(this.counterType) < this.amount) {
                        conditionApplies = true;
                        break;
                    }
                    break;
                case MORE_THAN:
                    if (permanent.getCounters().getCount(this.counterType) > this.amount) {
                        conditionApplies = true;
                        break;
                    }
                    break;
                case EQUAL_TO:
                    if (permanent.getCounters().getCount(this.counterType) == this.amount) {
                        conditionApplies = true;
                        break;
                    }
                    break;
            }
        }
        return conditionApplies;
    }
}
