/**
 * pcgen.core.term.PCBaseSpellStatTermEvaluator.java
 * Copyright (c) 2008 Andrew Wilson <nuance@users.sourceforge.net>.
 *
 * This library 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 library 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Created 03-Aug-2008 22:55:01
 *
 * Current Ver: $Revision:$
 *
 */

package pcgen.core.term;

import pcgen.cdom.enumeration.ObjectKey;
import pcgen.cdom.reference.CDOMSingleRef;
import pcgen.core.Globals;
import pcgen.core.PCClass;
import pcgen.core.PCStat;
import pcgen.core.PlayerCharacter;

public class PCBaseSpellStatTermEvaluator
		extends BasePCTermEvaluator implements TermEvaluator {

	private final String source;

	public PCBaseSpellStatTermEvaluator(
			String originalText, String source)
	{
		this.originalText = originalText;
		this.source       = source;
	}

	@Override
	public Float resolve(PlayerCharacter pc)
	{
		PCClass pcClass = pc.getClassKeyed(source);

		if (pcClass == null)
		{
			pcClass = Globals.getContext().getReferenceContext()
					.silentlyGetConstructedCDOMObject(PCClass.class, source);
		}
		//null safe to pass in
		return (float) getBaseSpellStatBonus(pc, pcClass);
	}

	private int getBaseSpellStatBonus(PlayerCharacter pc, PCClass pcClass)
	{
		if (pcClass == null)
		{
			return 0;
		}
		
		int baseSpellStat = 0;
		CDOMSingleRef<PCStat> ssref = pcClass.get(ObjectKey.SPELL_STAT);
		if (ssref != null)
		{
			PCStat ss = ssref.get();
			baseSpellStat = pc.getTotalStatFor(ss);
			baseSpellStat += (int) pc.getTotalBonusTo("STAT", "BASESPELLSTAT");
			baseSpellStat += (int) pc.getTotalBonusTo("STAT", "BASESPELLSTAT;CLASS=" + pcClass.getKeyName());
			baseSpellStat += (int) pc.getTotalBonusTo("STAT", "CAST." + ss.getKeyName());
			baseSpellStat = pc.getModForNumber(baseSpellStat, ss);
		}
		return baseSpellStat;
	}

	@Override
	public boolean isSourceDependant()
	{
		return true;
	}

	public boolean isStatic()
	{
		return false;
	}
}