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package mage.cards.q;

import java.util.Deque;
import java.util.LinkedList;
import java.util.UUID;
import mage.MageInt;
import mage.abilities.Ability;
import mage.abilities.common.EntersBattlefieldTriggeredAbility;
import mage.abilities.effects.OneShotEffect;
import mage.cards.Card;
import mage.cards.CardImpl;
import mage.cards.CardSetInfo;
import mage.cards.Cards;
import mage.cards.CardsImpl;
import mage.constants.CardType;
import mage.constants.Outcome;
import mage.constants.Zone;
import mage.filter.FilterPermanent;
import mage.game.Game;
import mage.game.permanent.Permanent;
import mage.players.Player;
import mage.target.common.TargetCreaturePermanent;

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

    public QuarryColossus(UUID ownerId, CardSetInfo setInfo) {
        super(ownerId,setInfo,new CardType[]{CardType.CREATURE},"{5}{W}{W}");
        this.subtype.add("Giant");

        this.power = new MageInt(5);
        this.toughness = new MageInt(6);

        // When Quarry Colossus enters the battlefield, put target creature into its owner's library just beneath the top X cards of that library, where X is the number of Plains you control.
        Ability ability = new EntersBattlefieldTriggeredAbility(new QuarryColossusReturnLibraryEffect(), false);
        ability.addTarget(new TargetCreaturePermanent());
        this.addAbility(ability);
    }

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

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

class QuarryColossusReturnLibraryEffect extends OneShotEffect {

    public QuarryColossusReturnLibraryEffect() {
        super(Outcome.Benefit);
        this.staticText = "put target creature into its owner's library just beneath the top X cards of that library, where X is the number of Plains you control";
    }

    public QuarryColossusReturnLibraryEffect(final QuarryColossusReturnLibraryEffect effect) {
        super(effect);
    }

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

    @Override
    public boolean apply(Game game, Ability source) {
        Player controller = game.getPlayer(source.getControllerId());
        Permanent permanent = game.getPermanent(this.getTargetPointer().getFirst(game, source));
        if (permanent != null && controller != null) {
            Player owner = game.getPlayer(permanent.getOwnerId());
            if (owner != null) {
                int plains = game.getBattlefield().countAll(new FilterPermanent("Plains", "Plains you control"), source.getControllerId(), game);
                int xValue = Math.min(plains, owner.getLibrary().size());
                Cards cards = new CardsImpl();
                Deque<UUID> cardIds = new LinkedList<>();
                for (int i = 0; i < xValue; i++) {
                    Card card = owner.getLibrary().removeFromTop(game);
                    cards.add(card);
                    cardIds.push(card.getId());
                }
                // return cards back to library
                permanent.moveToZone(Zone.LIBRARY, source.getSourceId(), game, true);
                game.informPlayers(new StringBuilder(controller.getLogName())
                        .append(" puts ").append(permanent.getName())
                        .append(" beneath the top ").append(xValue)
                        .append(" cards of ").append(owner.getLogName()).append("'s library").toString());
                while(!cardIds.isEmpty()) {
                    UUID cardId = cardIds.poll();
                    Card card = cards.get(cardId, game);
                    if (card != null) {
                        card.moveToZone(Zone.LIBRARY, source.getSourceId(), game, true);
                    }
                }
                return true;
            }
        }
        return false;
    }
}