/*
 * Copyright (c) 2010 Tom Parker <thpr@users.sourceforge.net>
 * 
 * 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 plugin.lsttokens.gamemode.basedice;

import java.util.StringTokenizer;

import pcgen.base.lang.StringUtil;
import pcgen.cdom.base.Constants;
import pcgen.cdom.content.BaseDice;
import pcgen.core.RollInfo;
import pcgen.rules.context.LoadContext;
import pcgen.rules.persistence.token.AbstractTokenWithSeparator;
import pcgen.rules.persistence.token.CDOMPrimaryToken;
import pcgen.rules.persistence.token.ParseResult;

public class DownToken extends AbstractTokenWithSeparator<BaseDice> implements
		CDOMPrimaryToken<BaseDice>
{

	@Override
	public String getTokenName()
	{
		return "DOWN";
	}

	@Override
	protected ParseResult parseTokenWithSeparator(LoadContext context,
			BaseDice bd, String value)
	{
		StringTokenizer st = new StringTokenizer(value, Constants.COMMA);
		while (st.hasMoreTokens())
		{
			String roll = st.nextToken();
			try
			{
				bd.addToDownList(new RollInfo(roll));
			}
			catch (IllegalArgumentException e)
			{
				return new ParseResult.Fail("Invalid Roll provided: " + roll
						+ " in " + value, context);
			}
		}
		return ParseResult.SUCCESS;
	}

	@Override
	protected char separator()
	{
		return ',';
	}

	@Override
	public String[] unparse(LoadContext context, BaseDice bd)
	{
		return new String[] { StringUtil.join(bd.getDownSteps(),
				Constants.COMMA) };
	}

	@Override
	public Class<BaseDice> getTokenClass()
	{
		return BaseDice.class;
	}
}