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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
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package mage.abilities.costs.common;

import java.util.UUID;
import mage.abilities.Ability;
import mage.abilities.costs.Cost;
import mage.abilities.costs.CostImpl;
import mage.constants.Zone;
import mage.game.Game;
import mage.players.Player;
import mage.util.CardUtil;

public class PutTopCardOfYourLibraryToGraveyardCost extends CostImpl {

    int numberOfCards;

    public PutTopCardOfYourLibraryToGraveyardCost() {
        this(1);
    }

    public PutTopCardOfYourLibraryToGraveyardCost(int numberOfCards) {
        this.numberOfCards = numberOfCards;
        this.text = setText();
    }

    public PutTopCardOfYourLibraryToGraveyardCost(PutTopCardOfYourLibraryToGraveyardCost cost) {
        super(cost);
        this.numberOfCards = cost.numberOfCards;
    }

    @Override
    public boolean pay(Ability ability, Game game, UUID sourceId, UUID controllerId, boolean noMana, Cost costToPay) {
        Player player = game.getPlayer(controllerId);
        if (player != null && player.getLibrary().size() >= numberOfCards) {
            paid = true;
            player.moveCards(player.getLibrary().getTopCards(game, numberOfCards), Zone.GRAVEYARD, ability, game);
        }
        return paid;
    }

    @Override
    public boolean canPay(Ability ability, UUID sourceId, UUID controllerId, Game game) {
        Player player = game.getPlayer(controllerId);
        return player != null && player.getLibrary().size() >= numberOfCards;
    }

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

    private String setText() {
        StringBuilder sb = new StringBuilder("Put the top ");
        if (numberOfCards == 1) {
            sb.append("card");
        } else {
            sb.append(CardUtil.numberToText(numberOfCards)).append(" cards");
        }
        sb.append(" of your library into your graveyard");
        return sb.toString();
    }
}