/*
 * Copyright 2007 (C) Thomas Parker <thpr@users.sourceforge.net>
 *
 * 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
 */
package plugin.lsttokens.deprecated;

import java.util.List;

import pcgen.cdom.base.CDOMObject;
import pcgen.cdom.base.CategorizedChooseInformation;
import pcgen.cdom.base.ChooseDriver;
import pcgen.cdom.base.ChooseSelectionActor;
import pcgen.cdom.base.Chooser;
import pcgen.cdom.base.Constants;
import pcgen.cdom.base.PrimitiveChoiceSet;
import pcgen.cdom.base.PrimitiveCollection;
import pcgen.cdom.choiceset.CollectionToChoiceSet;
import pcgen.cdom.enumeration.AssociationListKey;
import pcgen.cdom.enumeration.ObjectKey;
import pcgen.cdom.reference.CDOMDirectSingleRef;
import pcgen.cdom.reference.ReferenceManufacturer;
import pcgen.core.Ability;
import pcgen.core.AbilityCategory;
import pcgen.core.PlayerCharacter;
import pcgen.rules.context.LoadContext;
import pcgen.rules.persistence.token.AbstractTokenWithSeparator;
import pcgen.rules.persistence.token.CDOMSecondaryToken;
import pcgen.rules.persistence.token.ComplexParseResult;
import pcgen.rules.persistence.token.ParseResult;

/**
 * New chooser plugin, handles feats.
 */
public class ChooseFeatToken extends AbstractTokenWithSeparator<CDOMObject> implements
		CDOMSecondaryToken<CDOMObject>, Chooser<Ability>
{

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

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

	protected ParseResult parseTokenWithSeparator(LoadContext context,
			ReferenceManufacturer<Ability> rm, CDOMObject obj, String value)
	{
		int pipeLoc = value.lastIndexOf('|');
		String activeValue;
		String title;
		if (pipeLoc == -1)
		{
			activeValue = value;
			title = getDefaultTitle();
		}
		else
		{
			String titleString = value.substring(pipeLoc + 1);
			if (titleString.startsWith("TITLE="))
			{
				title = titleString.substring(6);
				if (title.startsWith("\""))
				{
					title = title.substring(1, title.length() - 1);
				}
				activeValue = value.substring(0, pipeLoc);
				if (title == null || title.isEmpty())
				{
					return new ParseResult.Fail(getParentToken() + Constants.COLON
						+ getTokenName() + " had TITLE= but no title: " + value, context);
				}
			}
			else
			{
				activeValue = value;
				title = getDefaultTitle();
			}
		}

		PrimitiveCollection<Ability> coll = context.getChoiceSet(rm, activeValue);
		if (coll == null)
		{
			return ParseResult.INTERNAL_ERROR;
		}
		if (!coll.getGroupingState().isValid())
		{
			ComplexParseResult cpr = new ComplexParseResult();
			cpr.addErrorMessage("Invalid combination of objects was used in: "
					+ activeValue);
			cpr.addErrorMessage("  Check that ALL is not combined");
			cpr.addErrorMessage("  Check that a key is not joined with AND (,)");
			return cpr;
		}
		PrimitiveChoiceSet<Ability> pcs = new CollectionToChoiceSet<>(coll);
		//Tricky for compatibility...
		CategorizedChooseInformation<Ability> tc =
				new CategorizedChooseInformation<>("ABILITY",
						CDOMDirectSingleRef.getRef(AbilityCategory.FEAT), pcs, Ability.class);
		tc.setTitle(title);
		tc.setChoiceActor(this);
		context.getObjectContext().put(obj, ObjectKey.CHOOSE_INFO, tc);
		return ParseResult.SUCCESS;
	}

	@Override
	public String[] unparse(LoadContext context, CDOMObject cdo)
	{
		//Nothing here anymore
		return null;
	}

	@Override
	public void applyChoice(ChooseDriver owner, Ability st, PlayerCharacter pc)
	{
		restoreChoice(pc, owner, st);
	}

	@Override
	public void removeChoice(PlayerCharacter pc, ChooseDriver owner,
			Ability choice)
	{
		pc.removeAssoc(owner, getListKey(), choice);
		List<ChooseSelectionActor<?>> actors = owner.getActors();
		if (actors != null)
		{
			for (ChooseSelectionActor ca : actors)
			{
				ca.removeChoice(owner, choice, pc);
			}
		}
	}

	@Override
	public void restoreChoice(PlayerCharacter pc, ChooseDriver owner,
			Ability choice)
	{
		pc.addAssoc(owner, getListKey(), choice);
		List<ChooseSelectionActor<?>> actors = owner.getActors();
		if (actors != null)
		{
			for (ChooseSelectionActor ca : actors)
			{
				ca.applyChoice(owner, choice, pc);
			}
		}
	}

	@Override
	public List<Ability> getCurrentlySelected(ChooseDriver owner,
			PlayerCharacter pc)
	{
		return pc.getAssocList(owner, getListKey());
	}

	@Override
	public boolean allow(Ability choice, PlayerCharacter pc, boolean allowStack)
	{
		/*
		 * This is universally true, as any filter for qualify, etc. was dealt
		 * with by the ChoiceSet built during parse
		 */
		return true;
	}

	private static final Class<Ability> ABILITY_CLASS = Ability.class;

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

	@Override
	public ParseResult parseTokenWithSeparator(LoadContext context,
			CDOMObject obj, String value)
	{
		return parseTokenWithSeparator(context, context.getReferenceContext().getManufacturer(
				ABILITY_CLASS, AbilityCategory.FEAT), obj, value);
	}

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

	protected String getDefaultTitle()
	{
		return "Ability choice";
	}

	protected AssociationListKey<Ability> getListKey()
	{
		return AssociationListKey.getKeyFor(ABILITY_CLASS, "CHOOSE*FEAT");
	}

	@Override
	public Ability decodeChoice(LoadContext context, String s)
	{
		return context.getReferenceContext().silentlyGetConstructedCDOMObject(
				Ability.class, AbilityCategory.FEAT, s);
	}

	@Override
	public String encodeChoice(Ability choice)
	{
		return choice.getKeyName();
	}

}