/*
 This file belongs to the Servoy development and deployment environment, Copyright (C) 1997-2014 Servoy BV

 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU Affero General Public License as published by the Free
 Software Foundation; either version 3 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 Affero General Public License for more details.

 You should have received a copy of the GNU Affero General Public License along
 with this program; if not, see http://www.gnu.org/licenses or write to the Free
 Software Foundation,Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
 */

package com.servoy.j2db.server.ngclient.component;

import java.util.HashMap;
import java.util.Map;

import org.mozilla.javascript.NativeDate;
import org.mozilla.javascript.NativeObject;
import org.mozilla.javascript.Scriptable;
import org.mozilla.javascript.Undefined;
import org.mozilla.javascript.UniqueTag;
import org.sablo.BaseWebObject;
import org.sablo.specification.PropertyDescription;

import com.servoy.j2db.IFormController;
import com.servoy.j2db.dataprocessing.JSDataSet;
import com.servoy.j2db.scripting.FormScope;
import com.servoy.j2db.server.ngclient.IServoyDataConverterContext;

/**
 * @author emera
 */
public class RhinoConversion
{

	/**
	 * Default conversion used to convert from Rhino property types that do not explicitly implement component <-> Rhino conversions. <BR/><BR/>
	 * Values of types that don't implement the sablo <-> rhino conversions are by default accessible directly.
	 */
	public static Object defaultFromRhino(Object propertyValue, Object oldValue, PropertyDescription pd, IServoyDataConverterContext converterContext)
	{
		// convert simple values to json values
		if (propertyValue == UniqueTag.NOT_FOUND || propertyValue == Undefined.instance)
		{
			return null;
		}

		if (propertyValue instanceof NativeDate)
		{
			return ((NativeDate)propertyValue).unwrap();
		}
		if (propertyValue instanceof NativeObject)
		{
			Map<String, Object> map = new HashMap<>();
			Map oldMap = (oldValue instanceof Map) ? (Map)oldValue : null;
			NativeObject no = (NativeObject)propertyValue;
			Object[] ids = no.getIds();
			for (Object id2 : ids)
			{
				String id = (String)id2;
				map.put(id, defaultFromRhino(no.get(id), oldMap != null ? oldMap.get(id) : null, pd != null ? pd.getProperty(id) : null, converterContext));
			}
			return map;
		}
		if (propertyValue instanceof FormScope && ((FormScope)propertyValue).getFormController() != null) return ((FormScope)propertyValue).getFormController().getName();
		if (propertyValue instanceof IFormController) return ((IFormController)propertyValue).getName();

		if (propertyValue instanceof JSDataSet)
		{
			return ((JSDataSet)propertyValue).getDataSet();
		}

		return propertyValue;
	}

	/**
	 * Default conversion used to convert to Rhino property types that do not explicitly implement component <-> Rhino conversions. <BR/><BR/>
	 * Types that don't implement the sablo <-> rhino conversions are by default available and their value is accessible directly.
	 */
	public static Object defaultToRhino(Object webComponentValue, PropertyDescription pd, BaseWebObject componentOrService, Scriptable startScriptable)
	{
		// TODO shouldn't this method be the exact reverse of fromRhino(...)?
		return webComponentValue;
	}

}