/*
 *  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
 * 
 *  Redistribution and use in source and binary forms, with or without modification, are
 *  permitted provided that the following conditions are met:
 * 
 *     1. Redistributions of source code must retain the above copyright notice, this list of
 *        conditions and the following disclaimer.
 * 
 *     2. Redistributions in binary form must reproduce the above copyright notice, this list
 *        of conditions and the following disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 * 
 *  THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
 *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 *  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
 *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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 *  The views and conclusions contained in the software and documentation are those of the
 *  authors and should not be interpreted as representing official policies, either expressed
 *  or implied, of BetaSteward_at_googlemail.com.
 */

package mage.abilities.effects.common;

import mage.Constants.Outcome;
import mage.Constants.Zone;
import mage.abilities.Ability;
import mage.abilities.effects.OneShotEffect;
import mage.cards.Card;
import mage.cards.Cards;
import mage.cards.CardsImpl;
import mage.filter.FilterCard;
import mage.game.Game;
import mage.players.Player;
import mage.target.TargetCard;

/**
 *
 * @author BetaSteward_at_googlemail.com
 */
public class ScryEffect extends OneShotEffect<ScryEffect> {

    protected static FilterCard filter1 = new FilterCard("card to put on the bottom of your library");
    protected static FilterCard filter2 = new FilterCard("card to put on the top of your library (last chosen will be on top)");

    protected int scryNumber;

    public ScryEffect(int scryNumber) {
        super(Outcome.Benefit);
        this.scryNumber = scryNumber;
        staticText = "Scry " + scryNumber;
    }

    public ScryEffect(final ScryEffect effect) {
        super(effect);
        this.scryNumber = effect.scryNumber;
    }

    @Override
    public boolean apply(Game game, Ability source) {
        Player player = game.getPlayer(source.getControllerId());
        Cards cards = new CardsImpl(Zone.PICK);
        int count = Math.min(scryNumber, player.getLibrary().size());
        if (count == 0) {
            return false;
        }
        for (int i = 0; i < count; i++) {
            Card card = player.getLibrary().removeFromTop(game);
            cards.add(card);
            game.setZone(card.getId(), Zone.PICK);
        }
        TargetCard target1 = new TargetCard(Zone.PICK, filter1);
        while (cards.size() > 0 && player.choose(Outcome.Detriment, cards, target1, game)) {
            Card card = cards.get(target1.getFirstTarget(), game);
            if (card != null) {
                cards.remove(card);
                card.moveToZone(Zone.LIBRARY, source.getId(), game, false);
            }
            target1.clearChosen();
        }
        if (cards.size() > 1) {
            TargetCard target2 = new TargetCard(Zone.PICK, filter2);
            target2.setRequired(true);
            while (cards.size() > 1) {
                player.choose(Outcome.Benefit, cards, target2, game);
                Card card = cards.get(target2.getFirstTarget(), game);
                if (card != null) {
                    cards.remove(card);
                    card.moveToZone(Zone.LIBRARY, source.getId(), game, true);
                }
                target2.clearChosen();
            }
        }
        if (cards.size() == 1) {
            Card card = cards.get(cards.iterator().next(), game);
            card.moveToZone(Zone.LIBRARY, source.getId(), game, true);
        }
        return true;
    }

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

}
