/*
 *  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
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 *  authors and should not be interpreted as representing official policies, either expressed
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 */

package mage.abilities.effects.common;

import mage.Constants.Outcome;
import mage.abilities.Ability;
import mage.abilities.Mode;
import mage.abilities.costs.Cost;
import mage.abilities.costs.mana.GenericManaCost;
import mage.abilities.dynamicvalue.DynamicValue;
import mage.abilities.effects.OneShotEffect;
import mage.game.Game;
import mage.game.stack.StackObject;
import mage.players.Player;

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

    protected Cost cost;
    protected DynamicValue genericMana;

    public CounterUnlessPaysEffect(Cost cost) {
        super(Outcome.Detriment);
        this.cost = cost;
    }

    public CounterUnlessPaysEffect(DynamicValue genericMana) {
        super(Outcome.Detriment);
        this.genericMana = genericMana;
    }

    public CounterUnlessPaysEffect(final CounterUnlessPaysEffect effect) {
        super(effect);
        if (effect.cost != null) {
            this.cost = effect.cost.copy();
        }
        if (effect.genericMana != null) {
            this.genericMana = effect.genericMana.copy();
        }
    }

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

    @Override
    public boolean apply(Game game, Ability source) {
        StackObject spell = game.getStack().getStackObject(targetPointer.getFirst(game, source));
        if (spell != null) {
            Player player = game.getPlayer(spell.getControllerId());
            if (player != null) {
                Cost costToPay = cost.copy();
                if (cost == null) {
                    costToPay = new GenericManaCost(genericMana.calculate(game, source));
                }
                costToPay.clearPaid();
                if (!costToPay.pay(source, game, spell.getSourceId(), spell.getControllerId(), false)) {
                    return game.getStack().counter(source.getFirstTarget(), source.getSourceId(), game);
                }
            }
        }
        return false;
    }

    @Override
    public String getText(Mode mode) {
        StringBuilder sb = new StringBuilder();
        if (mode.getTargets().size() == 0) {
            sb.append("counter it");
        }
        else {
            sb.append("Counter target ").append(mode.getTargets().get(0).getTargetName());
        }
        sb.append(" unless its controller pays ");
        if (cost != null) {
            sb.append(cost.getText());
        } else {
            sb.append("{X}");
        }
        return sb.toString();
    }

}
