/**
 *
 * Copyright 2016 Fernando Ramirez
 *
 * 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 org.jivesoftware.smackx.mam.provider;

import org.jivesoftware.smack.provider.ExtensionElementProvider;
import org.jivesoftware.smackx.forward.packet.Forwarded;
import org.jivesoftware.smackx.forward.provider.ForwardedProvider;
import org.jivesoftware.smackx.mam.element.MamElements.MamResultExtension;
import org.xmlpull.v1.XmlPullParser;

/**
 * MAM Result Provider class.
 * 
 * @see <a href="http://xmpp.org/extensions/xep-0313.html">XEP-0313: Message
 *      Archive Management</a>
 * @author Fernando Ramirez
 * 
 */
public class MamResultProvider extends ExtensionElementProvider<MamResultExtension> {

    @Override
    public MamResultExtension parse(XmlPullParser parser, int initialDepth) throws Exception {
        Forwarded forwarded = null;
        String queryId = parser.getAttributeValue("", "queryid");
        String id = parser.getAttributeValue("", "id");

        outerloop: while (true) {
            int eventType = parser.next();
            if (eventType == XmlPullParser.START_TAG) {
                if (parser.getName().equals(Forwarded.ELEMENT)) {
                    forwarded = new ForwardedProvider().parse(parser);
                }
            } else if (eventType == XmlPullParser.END_TAG) {
                if (parser.getDepth() == initialDepth) {
                    break outerloop;
                }
            }
        }

        return new MamResultExtension(queryId, id, forwarded);
    }

}