/**
 * pcgen.core.term.EvaluatorFactoryPCStat.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 21-Sep-2008 01:29:15
 *
 * Current Ver: $Revision:$
 *
 */

package pcgen.core.term;

public class TermEvaluatorBuilderPCStat implements TermEvaluatorBuilder
{

	private String   termConstructorPattern;
	private String[] termConstructorKeys;
	private boolean  patternMatchesEntireTerm;

	TermEvaluatorBuilderPCStat(
			String pattern,
			String[] keys,
			boolean matchEntireTerm)
	{
		termConstructorPattern   = pattern;
		termConstructorKeys      = keys;
		patternMatchesEntireTerm = matchEntireTerm;
	}

	@Override
	public String getTermConstructorPattern()
	{
		return termConstructorPattern;
	}

	@Override
	public String[] getTermConstructorKeys()
	{
		return termConstructorKeys;
	}

	@Override
	public boolean isEntireTerm()
	{
		return patternMatchesEntireTerm;
	}

	@Override
	public TermEvaluator getTermEvaluator(
			String expressionString,
			String src,
			String matchedSection) throws TermEvaulatorException
	{
		if (expressionString.equals(matchedSection))
		{
			return new PCStatModTermEvaluator(expressionString, matchedSection);
		}
		else if ((matchedSection + ".BASE").equals(expressionString))
		{
			return new PCStatBaseTermEvaluator(expressionString, matchedSection);
		}
		else if (expressionString.substring(matchedSection.length()).startsWith("SCORE"))
		{
			if (expressionString.endsWith(".BASE"))
			{
				return new PCStatBaseTermEvaluator(expressionString, matchedSection);
			}
			else
			{
				return new PCStatTotalTermEvaluator(expressionString, matchedSection);
			}
		}

		// the string hapened to start with a Stat abbreviation, but it's not
		// a value we handle here.
		return null;
	}
}