/*
 * Copyright (C) 2014 Servoy BV
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.servoy.j2db.server.ngclient.property.types;

import java.util.Date;

import org.json.JSONException;
import org.json.JSONWriter;
import org.sablo.specification.PropertyDescription;
import org.sablo.specification.property.IBrowserConverterContext;
import org.sablo.specification.property.IConvertedPropertyType;
import org.sablo.specification.property.types.DatePropertyType;
import org.sablo.specification.property.types.DefaultPropertyType;
import org.sablo.util.ValueReference;
import org.sablo.websocket.utils.DataConversion;
import org.sablo.websocket.utils.JSONUtils;

import com.servoy.j2db.MediaURLStreamHandler;
import com.servoy.j2db.server.ngclient.WebFormComponent;
import com.servoy.j2db.server.ngclient.property.types.MediaPropertyType.MediaWrapper;
import com.servoy.j2db.server.ngclient.utils.NGUtils;

/**
 * Property type that can work with any dataprovider type (number, text, date) and is able to handle byte arrays as URLs.
 * Used from within {@link DataproviderPropertyType} of MEDIA type.
 *
 * @author acostescu
 */
public class MediaDataproviderPropertyType extends DefaultPropertyType<Object> implements IConvertedPropertyType<Object>
{

	public static final MediaDataproviderPropertyType INSTANCE = new MediaDataproviderPropertyType();
	public final static String TYPE_NAME = "mediaDataprovider"; //$NON-NLS-1$

	@Override
	public String getName()
	{
		return TYPE_NAME;
	}

	@Override
	public Object fromJSON(Object newJSONValue, Object previousSabloValue, PropertyDescription pd, IBrowserConverterContext dataConverterContext,
		ValueReference<Boolean> returnValueAdjustedIncommingValue)
	{
		// TODO how do we know that client wants to set a Date if dp type is MEDIA? (newJSONValue would be the millis number in that case)
		// maybe some typeHint in spec config for the DP or let the client send conversion info hint?
		return newJSONValue;
	}

	@Override
	public JSONWriter toJSON(JSONWriter writer, String key, Object sabloValue, PropertyDescription pd, DataConversion clientConversion,
		IBrowserConverterContext dataConverterContext) throws JSONException
	{
		JSONUtils.addKeyIfPresent(writer, key);
		if (sabloValue != null)
		{
			if (sabloValue.getClass().isArray() && sabloValue.getClass().getComponentType() == byte.class)
			{
				ByteArrayResourcePropertyType.INSTANCE.toJSON(writer, null, (byte[])sabloValue, NGUtils.MEDIA_DATAPROVIDER_BYTE_ARRAY_CACHED_PD,
					clientConversion, dataConverterContext);
			}
			else if (sabloValue instanceof Date)
			{
				DatePropertyType.INSTANCE.toJSON(writer, null, (Date)sabloValue, NGUtils.DATE_DATAPROVIDER_CACHED_PD, clientConversion, dataConverterContext);
			}
			else if (sabloValue instanceof String)
			{
				if (((String)sabloValue).toLowerCase().startsWith(MediaURLStreamHandler.MEDIA_URL_DEF))
				{
					String url = MediaPropertyType.INSTANCE.getMediaUrl(sabloValue,
						((WebFormComponent)dataConverterContext.getWebObject()).getDataConverterContext().getApplication().getFlattenedSolution(), null);
					MediaPropertyType.INSTANCE.toJSON(writer, key, new MediaWrapper(sabloValue, url), pd, clientConversion, dataConverterContext);
				}
				else if (Boolean.TRUE.equals(pd.getConfig()))
				{
					HTMLStringPropertyType.INSTANCE.toJSON(writer, null, (String)sabloValue, NGUtils.TEXT_PARSEHTML_DATAPROVIDER_CACHED_PD, clientConversion,
						dataConverterContext);
				}
				else
				{
					HTMLStringPropertyType.INSTANCE.toJSON(writer, null, (String)sabloValue, NGUtils.TEXT_NO_PARSEHTML_DATAPROVIDER_CACHED_PD,
						clientConversion, dataConverterContext);
				}
			}
			else
			{
				// other primitive types
				writer.value(sabloValue);
			}
		}
		else
		{
			writer.value(null);
		}
		return writer;
	}

}