/*
 * LoadToken.java
 * Copyright (c) 2010 Tom Parker <thpr@users.sourceforge.net>
 * Copyright 2006 (C) Devon Jones <soulcatcher@evilsoft.org>
 *
 * 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 on September 2, 2002, 8:02 AM
 *
 * Current Ver: $Revision$
 *
 */
package plugin.lsttokens.load;

import java.math.BigDecimal;

import pcgen.core.system.LoadInfo;
import pcgen.rules.context.LoadContext;
import pcgen.rules.persistence.token.AbstractTokenWithSeparator;
import pcgen.rules.persistence.token.CDOMPrimaryToken;
import pcgen.rules.persistence.token.ParseResult;

/**
 * {@code LoadToken}
 * 
 * @author Devon Jones <soulcatcher@evilsoft.org>
 */
public class LoadToken extends AbstractTokenWithSeparator<LoadInfo> implements
		CDOMPrimaryToken<LoadInfo>
{

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

	@Override
	protected ParseResult parseTokenWithSeparator(LoadContext context,
			LoadInfo info, String value)
	{
		int pipeLoc = value.indexOf('|');
		if (pipeLoc == -1)
		{
			return new ParseResult.Fail(getTokenName()
					+ " requires a pipe, found : " + value, context);
		}
		if (pipeLoc != value.lastIndexOf('|'))
		{
			return new ParseResult.Fail(getTokenName()
					+ " requires only one pipe, found : " + value, context);
		}
		String strengthString = value.substring(0, pipeLoc);

		int strength;
		try
		{
			strength = Integer.parseInt(strengthString);
		}
		catch (NumberFormatException nfe)
		{
			return new ParseResult.Fail(getTokenName()
					+ " expected an Integer strength value : " + strengthString
					+ " in value: " + value, context);
		}
		String loadString = value.substring(pipeLoc + 1);
		try
		{
			BigDecimal load = new BigDecimal(loadString);
			if (load.compareTo(BigDecimal.ZERO) < 0)
			{
				return new ParseResult.Fail(getTokenName()
						+ " requires a non-negative load value, found : "
						+ loadString, context);
			}
			info.addLoadScoreValue(strength, load);
		}
		catch (NumberFormatException nfe)
		{
			return new ParseResult.Fail(getTokenName()
					+ " misunderstood load value : " + loadString
					+ " in value: " + value, context);
		}
		return ParseResult.SUCCESS;
	}

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

    @Override
	public String[] unparse(LoadContext context, LoadInfo info)
	{
		// TODO Auto-generated method stub
		return null;
	}

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