/*
 * Copyright (c) 2008 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.pcclass;

import pcgen.cdom.base.Constants;
import pcgen.cdom.enumeration.IntegerKey;
import pcgen.core.PCClass;
import pcgen.rules.context.LoadContext;
import pcgen.rules.persistence.token.CDOMPrimaryToken;
import pcgen.rules.persistence.token.ParseResult;

/**
 * Class deals with MAXLEVEL Token
 */
public class MaxlevelToken implements CDOMPrimaryToken<PCClass>
{

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

	@Override
	public ParseResult parseToken(LoadContext context, PCClass pcc, String value)
	{
		Integer lim;
		if ("NOLIMIT".equalsIgnoreCase(value))
		{
			lim = Constants.NO_LEVEL_LIMIT;
		}
		else
		{
			try
			{
				lim = Integer.valueOf(value);
				if (lim.intValue() <= 0)
				{
					return new ParseResult.Fail("Value less than 1 is not valid for "
							+ getTokenName() + ": " + value, context);
				}
			}
			catch (NumberFormatException nfe)
			{
				return new ParseResult.Fail("Value was not a number for "
						+ getTokenName() + ": " + value, context);
			}
		}
		context.getObjectContext().put(pcc, IntegerKey.LEVEL_LIMIT, lim);
		return ParseResult.SUCCESS;
	}

	@Override
	public String[] unparse(LoadContext context, PCClass pcc)
	{
		Integer lim = context.getObjectContext().getInteger(pcc,
				IntegerKey.LEVEL_LIMIT);
		if (lim == null)
		{
			return null;
		}
		String returnString = lim.toString();
		if (lim.equals(Constants.NO_LEVEL_LIMIT))
		{
			returnString = "NOLIMIT";
		}
		else if (lim.intValue() <= 0)
		{
			context.addWriteMessage(getTokenName() + " must be an integer > 0");
			return null;
		}
		return new String[] { returnString };
	}

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

}