/**
 * $Revision$
 * $Date$
 *
 * Copyright 2003-2007 Jive Software.
 *
 * All rights reserved. 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.workgroup.ext.macros;

import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.provider.IQProvider;
import org.jivesoftware.smack.util.StringUtils;
import org.xmlpull.v1.XmlPullParser;

/**
 * Macros iq is responsible for handling global and personal macros in the a Live Assistant
 * Workgroup.
 */
public class Macros extends IQ {

    private MacroGroup rootGroup;
    private boolean personal;
    private MacroGroup personalMacroGroup;

    private static ClassLoader cl;

    public static void setClassLoader(ClassLoader cloader) {
        cl = cloader;
    }


    public MacroGroup getRootGroup() {
        return rootGroup;
    }

    public void setRootGroup(MacroGroup rootGroup) {
        this.rootGroup = rootGroup;
    }

    public boolean isPersonal() {
        return personal;
    }

    public void setPersonal(boolean personal) {
        this.personal = personal;
    }

    public MacroGroup getPersonalMacroGroup() {
        return personalMacroGroup;
    }

    public void setPersonalMacroGroup(MacroGroup personalMacroGroup) {
        this.personalMacroGroup = personalMacroGroup;
    }


    /**
     * Element name of the packet extension.
     */
    public static final String ELEMENT_NAME = "macros";

    /**
     * Namespace of the packet extension.
     */
    public static final String NAMESPACE = "http://jivesoftware.com/protocol/workgroup";

    public String getChildElementXML() {
        StringBuilder buf = new StringBuilder();

        buf.append("<").append(ELEMENT_NAME).append(" xmlns=\"").append(NAMESPACE).append("\">");
        if (isPersonal()) {
            buf.append("<personal>true</personal>");
        }
        // TODO: REMOVE XSTREAM
//        if (getPersonalMacroGroup() != null) {
//            final XStream xstream = new XStream();
//            xstream.alias("macro", Macro.class);
//            xstream.alias("macrogroup", MacroGroup.class);
//
//            if (cl != null) {
//                xstream.setClassLoader(cl);
//            }
//            String persitedGroup = StringUtils.escapeForXML(xstream.toXML(getPersonalMacroGroup()));
//            buf.append("<personalMacro>").append(persitedGroup).append("</personalMacro>");
//        }
        buf.append("</").append(ELEMENT_NAME).append("> ");

        return buf.toString();
    }

    /**
     * An IQProvider for Macro packets.
     *
     * @author Derek DeMoro
     */
    public static class InternalProvider implements IQProvider {

        public InternalProvider() {
            super();
        }

        public IQ parseIQ(XmlPullParser parser) throws Exception {
            Macros macroGroup = new Macros();

            boolean done = false;
            while (!done) {
                int eventType = parser.next();
                if (eventType == XmlPullParser.START_TAG) {
                    if (parser.getName().equals("model")) {
                        String macros = parser.nextText();
                        // TODO: REMOVE XSTREAM
//                        XStream xstream = new XStream();
//                        if(cl != null){
//                            xstream.setClassLoader(cl);
//                        }
//                        xstream.alias("macro", Macro.class);
//                        xstream.alias("macrogroup", MacroGroup.class);
//                        MacroGroup group = (MacroGroup)xstream.fromXML(macros);
//                        macroGroup.setRootGroup(group);
                    }
                }
                else if (eventType == XmlPullParser.END_TAG) {
                    if (parser.getName().equals(ELEMENT_NAME)) {
                        done = true;
                    }
                }
            }

            return macroGroup;
        }
    }
}