/*
 * 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.abilitycategory;

import java.util.Set;
import java.util.StringTokenizer;

import pcgen.base.lang.StringUtil;
import pcgen.cdom.base.Constants;
import pcgen.cdom.enumeration.Type;
import pcgen.core.AbilityCategory;
import pcgen.rules.context.LoadContext;
import pcgen.rules.persistence.token.AbstractNonEmptyToken;
import pcgen.rules.persistence.token.CDOMPrimaryToken;
import pcgen.rules.persistence.token.DeferredToken;
import pcgen.rules.persistence.token.ParseResult;
import pcgen.util.Logging;

public class TypeToken extends AbstractNonEmptyToken<AbilityCategory> implements
		CDOMPrimaryToken<AbilityCategory>, DeferredToken<AbilityCategory>
{

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

	@Override
	public ParseResult parseNonEmptyToken(LoadContext context,
			AbilityCategory ac, String value)
	{
		if ("*".equals(value))
		{
			ac.setAllAbilityTypes(true);
			return ParseResult.SUCCESS;
		}

		ParseResult pr = checkForIllegalSeparator('.', value);
		if (!pr.passed())
		{
			return pr;
		}

		StringTokenizer st = new StringTokenizer(value, Constants.DOT);
		while (st.hasMoreTokens())
		{
			String typeString = st.nextToken();
			if ("*".equals(typeString))
			{
				return new ParseResult.Fail(
						"Use of named types along with TYPE:* in category "
								+ ac.getDisplayName() + " is invalid.  Found: "
								+ value, context);
			}
			else
			{
				ac.addAbilityType(Type.getConstant(typeString));
			}
		}
		return ParseResult.SUCCESS;
	}

	@Override
	public String[] unparse(LoadContext context, AbilityCategory ac)
	{
		if (ac.isAllAbilityTypes())
		{
			return new String[] { "*" };
		}
		Set<Type> types = ac.getTypes();
		if (types.isEmpty())
		{
			return null;
		}
		return new String[] { StringUtil.join(types, Constants.DOT) };
	}

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

	@Override
	public Class<AbilityCategory> getDeferredTokenClass()
	{
		return AbilityCategory.class;
	}

	@Override
	public boolean process(LoadContext context, AbilityCategory ac)
	{
		if (ac.isAllAbilityTypes())
		{
			if (!ac.getTypes().isEmpty())
			{
				Logging.log(Logging.LST_ERROR,
						"Use of named types along with TYPE:* in category "
								+ ac.getDisplayName() + " is invalid.");
				return false;
			}
			if (ac.hasDirectReferences())
			{
				Logging.log(Logging.LST_ERROR,
						"Use of ABILITYLIST along with TYPE:* in category "
								+ ac.getDisplayName() + " is invalid.");
				return false;
			}
		}
		return true;
	}
}