/*
 *  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.combat;

import mage.MageObjectReference;
import mage.abilities.Ability;
import mage.abilities.effects.RequirementEffect;
import mage.constants.Duration;
import mage.game.Game;
import mage.game.permanent.Permanent;
import mage.watchers.common.AttackedThisTurnWatcher;

/**
 *
 * @author BetaSteward_at_googlemail.com
 */
public class AttacksIfAbleSourceEffect extends RequirementEffect {

    boolean eachCombat;

    public AttacksIfAbleSourceEffect(Duration duration) {
        this(duration, false);
    }

    public AttacksIfAbleSourceEffect(Duration duration, boolean eachCombat) {
        super(duration);
        this.eachCombat = eachCombat;
        if (this.duration == Duration.EndOfTurn) {
            staticText = "{this} attacks " + (eachCombat ? "each combat" : "this turn") + " if able";
        } else {
            staticText = "{this} attacks each " + (eachCombat ? "combat" : "turn") + " if able";
        }
    }

    public AttacksIfAbleSourceEffect(final AttacksIfAbleSourceEffect effect) {
        super(effect);
        this.eachCombat = effect.eachCombat;
    }

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

    @Override
    public boolean applies(Permanent permanent, Ability source, Game game) {
        if (permanent.getId().equals(source.getSourceId())) {
            if (eachCombat) {
                return true;
            }
            AttackedThisTurnWatcher watcher = (AttackedThisTurnWatcher) game.getState().getWatchers().get(AttackedThisTurnWatcher.class.getSimpleName());
            return watcher != null && !watcher.getAttackedThisTurnCreatures().contains(new MageObjectReference(permanent, game));
        }
        return false;
    }

    @Override
    public boolean mustAttack(Game game) {
        return true;
    }

    @Override
    public boolean mustBlock(Game game) {
        return false;
    }

}