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 *  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
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package mage.abilities.dynamicvalue.common;

import mage.abilities.Ability;
import mage.abilities.dynamicvalue.DynamicValue;
import mage.abilities.effects.Effect;
import mage.cards.Card;
import mage.game.Game;

/**
 *
 * @author LevelX2
 */
public class SweepNumber implements DynamicValue {

    private int zoneChangeCounter = 0;
    private final String sweepSubtype;
    private final boolean previousZone;

    public SweepNumber(String sweepSubtype, boolean previousZone) {
        this.sweepSubtype = sweepSubtype;
        this.previousZone = previousZone;
    }

    @Override
    public int calculate(Game game, Ability source, Effect effect) {
        if (zoneChangeCounter == 0) {
            Card card = game.getCard(source.getSourceId());
            if (card != null) {
                zoneChangeCounter = card.getZoneChangeCounter(game);
                if (previousZone) {
                    zoneChangeCounter--;
                }
            }
        }
        int number = 0;
        Integer sweepNumber = (Integer) game.getState().getValue(new StringBuilder("sweep").append(source.getSourceId()).append(zoneChangeCounter).toString());
        if (sweepNumber != null) {
            number = sweepNumber;
        }
        return number;
    }

    @Override
    public SweepNumber copy() {
        return new SweepNumber(sweepSubtype, previousZone);
    }

    @Override
    public String toString() {
        return "X";
    }

    @Override
    public String getMessage() {
        return new StringBuilder("the number of ").append(sweepSubtype).append(sweepSubtype.endsWith("s") ? "":"s").append(" returned this way").toString();
    }
}