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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.sets.judgment;

import java.util.UUID;
import mage.MageInt;
import mage.ObjectColor;
import mage.abilities.Ability;
import mage.abilities.common.EntersBattlefieldAbility;
import mage.abilities.common.SimpleStaticAbility;
import mage.abilities.effects.PreventionEffectImpl;
import mage.abilities.effects.common.counter.AddCountersSourceEffect;
import mage.abilities.keyword.ProtectionAbility;
import mage.cards.CardImpl;
import mage.constants.CardType;
import mage.constants.Duration;
import mage.constants.PhaseStep;
import mage.constants.Rarity;
import mage.constants.Zone;
import mage.counters.CounterType;
import mage.filter.FilterCard;
import mage.filter.predicate.mageobject.ColorPredicate;
import mage.game.Game;
import mage.game.events.GameEvent;
import mage.game.permanent.Permanent;
import mage.game.turn.Step;

/**
 *
 * @author LevelX2
 */
public class PhantomCentaur extends CardImpl {

    private static final FilterCard filter = new FilterCard("Black");

    static {
        filter.add(new ColorPredicate(ObjectColor.BLACK));
    }

    public PhantomCentaur(UUID ownerId) {
        super(ownerId, 127, "Phantom Centaur", Rarity.UNCOMMON, new CardType[]{CardType.CREATURE}, "{2}{G}{G}");
        this.expansionSetCode = "JUD";
        this.subtype.add("Centaur");
        this.subtype.add("Spirit");

        this.power = new MageInt(2);
        this.toughness = new MageInt(0);

        // Protection from black
        this.addAbility(new ProtectionAbility(filter));

        // Phantom Centaur enters the battlefield with three +1/+1 counters on it.
        this.addAbility(new EntersBattlefieldAbility(new AddCountersSourceEffect(CounterType.P1P1.createInstance(3)), "with three +1/+1 counters on it"));

        // If damage would be dealt to Phantom Centaur, prevent that damage. Remove a +1/+1 counter from Phantom Centaur.
        this.addAbility(new SimpleStaticAbility(Zone.BATTLEFIELD, new PhantomCentaurPreventionEffect()));
    }

    public PhantomCentaur(final PhantomCentaur card) {
        super(card);
    }

    @Override
    public PhantomCentaur copy() {
        return new PhantomCentaur(this);
    }
}

class PhantomCentaurPreventionEffect extends PreventionEffectImpl {

    // remember turn and phase step to check if counter in this step was already removed
    private int turn = 0;
    private Step combatPhaseStep = null;

    public PhantomCentaurPreventionEffect() {
        super(Duration.WhileOnBattlefield);
        staticText = "If damage would be dealt to {this}, prevent that damage. Remove a +1/+1 counter from {this}";
    }

    public PhantomCentaurPreventionEffect(final PhantomCentaurPreventionEffect effect) {
        super(effect);
        this.turn = effect.turn;
        this.combatPhaseStep = effect.combatPhaseStep;
    }

    @Override
    public PhantomCentaurPreventionEffect copy() {
        return new PhantomCentaurPreventionEffect(this);
    }

    @Override
    public boolean apply(Game game, Ability source) {
        return true;
    }

    @Override
    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
        preventDamageAction(event, source, game);

        Permanent permanent = game.getPermanent(source.getSourceId());
        if (permanent != null) {
            boolean removeCounter = true;
            // check if in the same combat damage step already a counter was removed
            if (game.getTurn().getPhase().getStep().getType().equals(PhaseStep.COMBAT_DAMAGE)) {
                if (game.getTurnNum() == turn
                        && game.getTurn().getStep().equals(combatPhaseStep)) {
                    removeCounter = false;
                } else {
                    turn = game.getTurnNum();
                    combatPhaseStep = game.getTurn().getStep();
                }
            }

            if(removeCounter && permanent.getCounters().containsKey(CounterType.P1P1)) {
                StringBuilder sb = new StringBuilder(permanent.getName()).append(": ");
                permanent.removeCounters(CounterType.P1P1.createInstance(), game);
                sb.append("Removed a +1/+1 counter ");
                game.informPlayers(sb.toString());
            }
        }

        return false;
    }

    @Override
    public boolean applies(GameEvent event, Ability source, Game game) {
        if (super.applies(event, source, game)) {
            if (event.getTargetId().equals(source.getSourceId())) {
                return true;
            }
        }
        return false;
    }

}