/*
 * 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.equipmentmodifier;

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

import pcgen.cdom.enumeration.ListKey;
import pcgen.core.EquipmentModifier;
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.CDOMPrimaryToken;
import pcgen.rules.persistence.token.ParseResult;

/**
 * Deals with BONUS token
 */
public class BonusToken implements CDOMPrimaryToken<EquipmentModifier>
{

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

	@Override
	public ParseResult parseToken(LoadContext context, EquipmentModifier mod,
		String value)
	{
		BonusObj bon = Bonus.newBonus(context, value);
		if (bon == null)
		{
			return new ParseResult.Fail(getTokenName() + " was given invalid bonus: "
					+ value, context);
		}
		bon.setTokenSource(getTokenName());
		context.getObjectContext().addToList(mod, ListKey.BONUS, bon);
		return ParseResult.SUCCESS;
	}

	@Override
	public String[] unparse(LoadContext context, EquipmentModifier mod)
	{
		Changes<BonusObj> changes = context.getObjectContext().getListChanges(mod,
				ListKey.BONUS);
		if (changes == null || changes.isEmpty())
		{
			// Empty indicates no token present
			return null;
		}
		// CONSIDER need to deal with removed...
		Collection<BonusObj> added = changes.getAdded();
		String tokenName = getTokenName();
		Set<String> bonusSet = new TreeSet<>();
		for (BonusObj bonus : added)
		{
			if (tokenName.equals(bonus.getTokenSource()))
			{
				String bonusString = bonus.getLSTformat();
				bonusSet.add(bonusString);
			}
		}
		if (bonusSet.isEmpty())
		{
			// This is okay - just no BONUSes from this token
			return null;
		}
		return bonusSet.toArray(new String[bonusSet.size()]);
	}

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