/*
 * Copyright (c) 2013 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.tempbonus;

import java.util.Collection;
import java.util.Set;
import java.util.TreeSet;
import java.util.regex.Pattern;

import pcgen.cdom.base.CDOMObject;
import pcgen.cdom.enumeration.ListKey;
import pcgen.core.bonus.Bonus;
import pcgen.core.bonus.BonusObj;
import pcgen.rules.context.Changes;
import pcgen.rules.context.LoadContext;
import pcgen.rules.persistence.token.AbstractTokenWithSeparator;
import pcgen.rules.persistence.token.CDOMSecondaryToken;
import pcgen.rules.persistence.token.ParseResult;

public class AnyPCToken extends AbstractTokenWithSeparator<CDOMObject>
		implements CDOMSecondaryToken<CDOMObject>
{

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

	@Override
	public ParseResult parseTokenWithSeparator(LoadContext context,
		CDOMObject obj, String value)
	{
		final String v =
				value.replaceAll(Pattern.quote("<this>"), obj.getKeyName());
		BonusObj bon = Bonus.newBonus(context, v);
		if (bon == null)
		{
			return new ParseResult.Fail(getFullTokenName()
				+ " was given invalid type: " + value, context);
		}
		bon.setTokenSource(getFullTokenName());
		context.getObjectContext().addToList(obj, ListKey.BONUS_ANYPC, bon);
		return ParseResult.SUCCESS;
	}

	@Override
	public String[] unparse(LoadContext context, CDOMObject obj)
	{
		Changes<BonusObj> changes =
				context.getObjectContext().getListChanges(obj,
					ListKey.BONUS_ANYPC);
		Collection<BonusObj> added = changes.getAdded();
		if (added == null || added.isEmpty())
		{
			// Zero indicates no Token (and no global clear, so nothing to do)
			return null;
		}
		Set<String> bonusSet = new TreeSet<>();
		for (BonusObj bonus : added)
		{
			bonusSet.add(bonus.getLSTformat());
		}
		return bonusSet.toArray(new String[bonusSet.size()]);
	}

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

	@Override
	public String getParentToken()
	{
		return "TEMPBONUS";
	}

	private String getFullTokenName()
	{
		return "TEMPBONUS:ANYPC";
	}

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