/*
 * Copyright 2014 (C) Thomas Parker <thpr@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
 */
package plugin.lsttokens.datacontrol;

import pcgen.cdom.content.ContentDefinition;
import pcgen.rules.context.LoadContext;
import pcgen.rules.persistence.token.AbstractNonEmptyToken;
import pcgen.rules.persistence.token.CDOMPrimaryToken;
import pcgen.rules.persistence.token.ParseResult;

public class RequiredToken extends AbstractNonEmptyToken<ContentDefinition>
		implements CDOMPrimaryToken<ContentDefinition>
{

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

	@Override
	protected ParseResult parseNonEmptyToken(LoadContext context,
		ContentDefinition factDef, String value)
	{
		boolean set;
		char firstChar = value.charAt(0);
		if (firstChar == 'y' || firstChar == 'Y')
		{
			if (value.length() > 1 && !value.equalsIgnoreCase("YES"))
			{
				return new ParseResult.Fail("You should use 'YES' as the "
					+ getTokenName() + ": " + value, context);
			}
			set = true;
		}
		else
		{
			if (firstChar != 'N' && firstChar != 'n')
			{
				return new ParseResult.Fail(
					"You should use 'YES' or 'NO' as the " + getTokenName()
						+ ": " + value, context);
			}
			if (value.length() > 1 && !value.equalsIgnoreCase("NO"))
			{
				return new ParseResult.Fail(
					"You should use 'YES' or 'NO' as the " + getTokenName()
						+ ": " + value, context);
			}
			set = false;
		}
		factDef.setRequired(set);
		return ParseResult.SUCCESS;
	}

	@Override
	public String[] unparse(LoadContext context, ContentDefinition factDef)
	{
		Boolean required = factDef.getRequired();
		if (required == null)
		{
			return null;
		}
		return new String[]{required.booleanValue() ? "YES" : "NO"};
	}

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

}