/*
 * Copyright (c) Thomas Parker, 2012-14
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
package pcgen.cdom.facet;

import pcgen.cdom.enumeration.CharID;
import pcgen.cdom.enumeration.ObjectKey;
import pcgen.cdom.enumeration.SkillCost;
import pcgen.cdom.facet.base.AbstractSourcedListFacet;
import pcgen.cdom.facet.event.SubScopeFacetChangeEvent;
import pcgen.cdom.facet.event.SubScopeFacetChangeListener;
import pcgen.core.PCClass;
import pcgen.core.Skill;

/**
 * UsableSkillsFacet is a Facet that tracks Non-Exclusive Use-Untrained skills
 * for a PC (CLASS or CROSSCLASS for any PCClass)
 * 
 * @author Thomas Parker (thpr [at] yahoo.com)
 */
public class UsableSkillsFacet extends AbstractSourcedListFacet<CharID, Skill>
		implements SubScopeFacetChangeListener<Skill, SkillCost, PCClass>
{
	private SkillCostFacet skillCostFacet;

	@Override
	public void dataAdded(
		SubScopeFacetChangeEvent<Skill, SkillCost, PCClass> dfce)
	{
		Skill sk = dfce.getScope1();
		if (sk.getSafe(ObjectKey.USE_UNTRAINED).booleanValue())
		{
			add(dfce.getCharID(), sk, dfce.getSource());
		}
	}

	@Override
	public void dataRemoved(
		SubScopeFacetChangeEvent<Skill, SkillCost, PCClass> dfce)
	{
		CharID id = dfce.getCharID();
		Skill sk = dfce.getScope1();
		if (sk.getSafe(ObjectKey.USE_UNTRAINED).booleanValue()
			&& !skillCostFacet.containsFor(id, sk))
		{
			remove(id, sk, dfce.getSource());
		}
	}

	public void setSkillCostFacet(SkillCostFacet skillCostFacet)
	{
		this.skillCostFacet = skillCostFacet;
	}

	public void init()
	{
		skillCostFacet.addSubScopeFacetChangeListener(this);
	}
}