/*
 * 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.TreeSet;

import pcgen.cdom.base.Constants;
import pcgen.cdom.enumeration.ListKey;
import pcgen.cdom.processor.ChangeArmorType;
import pcgen.core.EquipmentModifier;
import pcgen.rules.context.Changes;
import pcgen.rules.context.LoadContext;
import pcgen.rules.persistence.token.AbstractTokenWithSeparator;
import pcgen.rules.persistence.token.CDOMPrimaryToken;
import pcgen.rules.persistence.token.ParseResult;

/**
 * Deals with ARMORTYPE token
 */
public class ArmortypeToken extends
		AbstractTokenWithSeparator<EquipmentModifier> implements
		CDOMPrimaryToken<EquipmentModifier>
{

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

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

	@Override
	protected ParseResult parseTokenWithSeparator(LoadContext context,
		EquipmentModifier mod, String value)
	{
		int pipeLoc = value.indexOf(Constants.PIPE);
		ChangeArmorType cat;
		if (pipeLoc == -1)
		{
			return new ParseResult.Fail(getTokenName()
					+ " has no PIPE character: Must be of the form old|new", context);
		}
		else if (pipeLoc != value.lastIndexOf(Constants.PIPE))
		{
			return new ParseResult.Fail(getTokenName()
					+ " has too many PIPE characters: "
					+ "Must be of the form old|new", context);
		}
		else
		{
			/*
			 * TODO Are the ArmorTypes really a subset of Encumbrence?
			 */
			String oldType = value.substring(0, pipeLoc);
			String newType = value.substring(pipeLoc + 1);
			/*
			 * TODO Need some check if the Armor Types in value are not valid...
			 */
			cat = new ChangeArmorType(oldType, newType);
		}
		context.getObjectContext().addToList(mod, ListKey.ARMORTYPE, cat);
		return ParseResult.SUCCESS;
	}

	@Override
	public String[] unparse(LoadContext context, EquipmentModifier mod)
	{
		Changes<ChangeArmorType> changes = context.getObjectContext()
				.getListChanges(mod, ListKey.ARMORTYPE);
		Collection<ChangeArmorType> added = changes.getAdded();
		if (added == null || added.isEmpty())
		{
			// Zero indicates no Token
			return null;
		}
		TreeSet<String> set = new TreeSet<>();
		for (ChangeArmorType cat : added)
		{
			set.add(cat.getLSTformat());
		}
		return set.toArray(new String[set.size()]);
	}

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