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package mage.abilities.effects.common.continious;

import mage.abilities.Ability;
import mage.abilities.effects.AsThoughEffectImpl;
import mage.cards.Card;
import mage.filter.FilterCard;
import mage.game.Game;
import mage.players.Player;

import java.util.UUID;

import static mage.Constants.*;

/**
 * @author nantuko
 */
public class PlayTheTopCardEffect extends AsThoughEffectImpl<PlayTheTopCardEffect> {

    private FilterCard filter;

    public PlayTheTopCardEffect(FilterCard filter) {
        super(AsThoughEffectType.CAST, Duration.WhileOnBattlefield, Outcome.Benefit);
        this.filter = filter;
        staticText = "You may play the top card of your library if it's a " + filter.getMessage();
    }

    public PlayTheTopCardEffect(final PlayTheTopCardEffect effect) {
        super(effect);
        this.filter = effect.filter;
    }

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

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

    @Override
    public boolean applies(UUID sourceId, Ability source, Game game) {
        Card card = game.getCard(sourceId);
        if (card != null && filter.match(card, game)) {
            Player player = game.getPlayer(card.getOwnerId());
            if (player != null && card.equals(player.getLibrary().getFromTop(game))) {
                return true;
            }
        }
        return false;
    }

}