/*
 * EquipBuyToken.java
 * Copyright 2006 (C) Aaron Divinsky <boomer70@yahoo.com>
 *
 * This library 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 library 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Created on March 6, 2006
 *
 * Current Ver: $Revision$
 */

package plugin.lsttokens.kit.startpack;

import java.util.ArrayList;
import java.util.List;

import pcgen.base.formula.Formula;
import pcgen.base.text.ParsingSeparator;
import pcgen.cdom.base.Constants;
import pcgen.cdom.base.FormulaFactory;
import pcgen.cdom.enumeration.ObjectKey;
import pcgen.core.Kit;
import pcgen.core.QualifiedObject;
import pcgen.core.prereq.Prerequisite;
import pcgen.rules.context.LoadContext;
import pcgen.rules.persistence.token.AbstractNonEmptyToken;
import pcgen.rules.persistence.token.CDOMPrimaryToken;
import pcgen.rules.persistence.token.ParseResult;

/**
 * EQUIPBUY Token for KitStartpack
 */
public class EquipBuyToken extends AbstractNonEmptyToken<Kit> implements
		CDOMPrimaryToken<Kit>
{
	/**
	 * Gets the name of the tag this class will parse.
	 * 
	 * @return Name of the tag this class handles
	 */
	@Override
	public String getTokenName()
	{
		return "EQUIPBUY";
	}

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

	@Override
	protected ParseResult parseNonEmptyToken(LoadContext context, Kit kit,
			String value)
	{
		ParsingSeparator sep = new ParsingSeparator(value, '|');
		sep.addGroupingPair('[', ']');
		sep.addGroupingPair('(', ')');

		String activeValue = sep.next();
		if (looksLikeAPrerequisite(activeValue))
		{
			return new ParseResult.Fail("Cannot have only PRExxx subtoken in "
					+ getTokenName(), context);
		}
		Formula f = FormulaFactory.getFormulaFor(activeValue);
		if (!f.isValid())
		{
			return new ParseResult.Fail("Formula in " + getTokenName()
					+ " was not valid: " + f.toString(), context);
		}
		List<Prerequisite> prereqs = new ArrayList<>();

		while (sep.hasNext())
		{
			activeValue = sep.next();
			Prerequisite prereq = getPrerequisite(activeValue);
			if (prereq == null)
			{
				return new ParseResult.Fail("   (Did you put feats after the "
					+ "PRExxx tags in " + getTokenName() + ":?)", context);
			}
			prereqs.add(prereq);
		}
		kit.put(ObjectKey.EQUIP_BUY, new QualifiedObject<>(f, prereqs));
		return ParseResult.SUCCESS;
	}

	@Override
	public String[] unparse(LoadContext context, Kit kit)
	{
		QualifiedObject<Formula> qo = kit.get(ObjectKey.EQUIP_BUY);
		if (qo == null)
		{
			return null;
		}
		Formula f = qo.getRawObject();
		List<Prerequisite> prereqs = qo.getPrerequisiteList();
		String ab = f.toString();
		if (prereqs != null && !prereqs.isEmpty())
		{
			ab = ab + Constants.PIPE + getPrerequisiteString(context, prereqs);
		}
		return new String[]{ab};
	}

}