/*
 * 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.tab;

import java.util.Collection;
import java.util.StringTokenizer;
import java.util.TreeSet;

import pcgen.base.lang.StringUtil;
import pcgen.cdom.base.Constants;
import pcgen.cdom.content.TabInfo;
import pcgen.rules.context.LoadContext;
import pcgen.rules.persistence.token.AbstractTokenWithSeparator;
import pcgen.rules.persistence.token.CDOMPrimaryToken;
import pcgen.rules.persistence.token.ParseResult;
import pcgen.util.enumeration.Tab;

public class StattablehiddencolumnsToken extends
		AbstractTokenWithSeparator<TabInfo> implements
		CDOMPrimaryToken<TabInfo>
{

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

	@Override
	public ParseResult parseTokenWithSeparator(LoadContext context, TabInfo ti,
			String value)
	{
		if (!Tab.SUMMARY.equals(ti.getTab()))
		{
			return new ParseResult.Fail(getTokenName()
					+ " may only be used on the " + Tab.SUMMARY + " Tab", context);
		}
		ti.clearHiddenColumns();

		StringTokenizer st = new StringTokenizer(value, Constants.COMMA);
		while (st.hasMoreTokens())
		{
			String token = st.nextToken();
			try
			{
				ti.hideColumn(Integer.valueOf(token));
			}
			catch (NumberFormatException nfe)
			{
				return new ParseResult.Fail(getTokenName()
						+ " misunderstood Integer: " + token + " in " + value, context);
			}
		}
		return ParseResult.SUCCESS;
	}

	@Override
	public String[] unparse(LoadContext context, TabInfo ti)
	{
		if (!Tab.SUMMARY.equals(ti.getTab()))
		{
			return null;
		}
		Collection<Integer> columns = ti.getHiddenColumns();
		TreeSet<Integer> set = new TreeSet<>();
		set.addAll(columns);
		return new String[] { StringUtil.join(set, Constants.COMMA) };
	}

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

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