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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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 *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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package mage.cards.d;

import mage.MageInt;
import mage.abilities.Ability;
import mage.abilities.common.BeginningOfUpkeepTriggeredAbility;
import mage.abilities.effects.OneShotEffect;
import mage.abilities.effects.common.TransformSourceEffect;
import mage.abilities.keyword.TransformAbility;
import mage.cards.*;
import mage.cards.i.InsectileAberration;
import mage.constants.CardType;
import mage.constants.Outcome;
import mage.constants.TargetController;
import mage.filter.FilterCard;
import mage.filter.common.FilterInstantOrSorceryCard;
import mage.game.Game;
import mage.game.permanent.Permanent;
import mage.players.Player;

import java.util.UUID;

/**
 *
 * @author Alvin
 */
public class DelverOfSecrets extends CardImpl {

    public DelverOfSecrets(UUID ownerId, CardSetInfo setInfo) {
        super(ownerId,setInfo,new CardType[]{CardType.CREATURE},"{U}");
        this.subtype.add("Human");
        this.subtype.add("Wizard");

        this.power = new MageInt(1);
        this.toughness = new MageInt(1);

        this.transformable = true;
        this.secondSideCardClazz = InsectileAberration.class;

        // At the beginning of your upkeep, look at the top card of your library. You may reveal that card. If an instant or sorcery card is revealed this way, transform Delver of Secrets.
        this.addAbility(new TransformAbility());
        this.addAbility(new BeginningOfUpkeepTriggeredAbility(new DelverOfSecretsEffect(), TargetController.YOU, false));
    }

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

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

class DelverOfSecretsEffect extends OneShotEffect {
    
    private static final FilterCard filter = new FilterInstantOrSorceryCard();
    
    public DelverOfSecretsEffect() {
        super(Outcome.Benefit);
        this.staticText = "look at the top card of your library. You may reveal that card. If an instant or sorcery card is revealed this way, transform {this}";
    }
    
    public DelverOfSecretsEffect(final DelverOfSecretsEffect effect) {
        super(effect);
    }
    
    @Override
    public DelverOfSecretsEffect copy() {
        return new DelverOfSecretsEffect(this);
    }
    
    @Override
    public boolean apply(Game game, Ability source) {
        Player player = game.getPlayer(source.getControllerId());
        Permanent sourcePermanent = game.getPermanentOrLKIBattlefield(source.getSourceId());
        if (player != null && sourcePermanent != null) {            
            if (player.getLibrary().hasCards()) {
                Card card = player.getLibrary().getFromTop(game);
                Cards cards = new CardsImpl();
                cards.add(card);
                player.lookAtCards(sourcePermanent.getName(), cards, game);
                if (player.chooseUse(Outcome.DrawCard, "Do you wish to reveal the card at the top of the library?", source, game)) {
                    player.revealCards(sourcePermanent.getName(), cards, game);
                    if (filter.match(card, game)) {
                        return new TransformSourceEffect(true, true).apply(game, source);
                    }
                }
                
            }
            return true;
        }        
        return false;
    }
}