/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.openmeetings.web.components;

import org.apache.openmeetings.data.basic.NaviBuilder;
import org.apache.openmeetings.persistence.beans.basic.Naviglobal;
import org.apache.openmeetings.persistence.beans.basic.Navimain;
import org.apache.openmeetings.web.app.Application;
import org.apache.openmeetings.web.app.WebSession;
import org.apache.openmeetings.web.components.admin.backup.BackupPanel;
import org.apache.openmeetings.web.components.admin.configurations.ConfigsPanel;
import org.apache.openmeetings.web.components.admin.groups.GroupsPanel;
import org.apache.openmeetings.web.components.admin.labels.LangPanel;
import org.apache.openmeetings.web.components.admin.ldaps.LdapsPanel;
import org.apache.openmeetings.web.components.admin.rooms.RoomsPanel;
import org.apache.openmeetings.web.components.admin.servers.ServersPanel;
import org.apache.openmeetings.web.components.admin.users.UsersPanel;
import org.apache.openmeetings.web.components.user.calendar.CalendarPanel;
import org.apache.openmeetings.web.components.user.rooms.UserRoomsPanel;
import org.apache.wicket.AttributeModifier;
import org.apache.wicket.Component;
import org.apache.wicket.MarkupContainer;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.AjaxLink;
import org.apache.wicket.behavior.Behavior;
import org.apache.wicket.core.util.string.JavaScriptUtils;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.OnDomReadyHeaderItem;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;

/**
 * Loads the menu items into the main area
 * 
 * @author sebawagner
 *
 */
public class MenuPanel extends BasePanel {
	private static final long serialVersionUID = 6626039612808753514L;

	private enum MenuActions {
		dashboardModuleStartScreen
		, dashboardModuleCalendar
		, recordModule
		, conferenceModuleRoomList
		, eventModuleRoomList
		, moderatorModuleUser
		, moderatorModuleRoom
		, adminModuleUser
		, adminModuleConnections
		, adminModuleOrg
		, adminModuleRoom
		, adminModuleConfiguration
		, adminModuleLanguages
		, adminModuleLDAP
		, adminModuleBackup
		, adminModuleServers
	}

	public enum MenuParams {
		publicTabButton
		, privateTabButton
		, myTabButton
	}
	
	public MenuPanel(String id, final MarkupContainer contents) {
		super(id);
		setMarkupId(id);
		
		final NaviBuilder man = Application.getBean(NaviBuilder.class);
		add(new ListView<Naviglobal>("mainItem", man.getMainMenu(WebSession.getUserLevel(), WebSession.getUserId(), WebSession.getLanguage())) {
			private static final long serialVersionUID = 2173926553418745231L;

			@Override
			protected void populateItem(ListItem<Naviglobal> item) {
				Naviglobal gl = item.getModelObject();
				item.add(new Label("label", gl.getLabel().getValue()).setRenderBodyOnly(true));
				
				item.add(new ListView<Navimain>("childItem", gl.getMainnavi()) {
					private static final long serialVersionUID = 3609635268338379087L;

					@Override
					protected void populateItem(ListItem<Navimain> item) {
						Navimain m = item.getModelObject();
						final String name = m.getLabel().getValue();
						final String desc = m.getTooltip().getValue();
						final MenuActions action = MenuActions.valueOf(m.getAction());
						final MenuParams params = m.getParams() != null ? MenuParams.valueOf(m.getParams()) : MenuParams.publicTabButton;
						final String hash = getHash(action, params);
						item.add(new AjaxLink<Void>("link") {
							private static final long serialVersionUID = 5632618935550133709L;
							{
								add(new Label("name", name));
								add(new Label("description", desc));
							}
							
							public void onClick(AjaxRequestTarget target) {
								
								BasePanel basePanel = null;
								
								switch(action) {
									case dashboardModuleStartScreen:
										break;
									case dashboardModuleCalendar:
										basePanel = new CalendarPanel("child");
										break;
									case recordModule:
										break;
									case conferenceModuleRoomList:
										basePanel = new UserRoomsPanel("child", params);
										break;
									case eventModuleRoomList:
										break;
									case moderatorModuleUser:
										break;
									case moderatorModuleRoom:
										break;
									case adminModuleUser:
										basePanel = new UsersPanel("child");
										break;
									case adminModuleConnections:
										break;
									case adminModuleOrg:
										basePanel = new GroupsPanel("child");
										break;
									case adminModuleRoom:
										basePanel = new RoomsPanel("child");
										break;
									case adminModuleConfiguration:
										basePanel = new ConfigsPanel("child");
										break;
									case adminModuleLanguages:
										basePanel = new LangPanel("child");
										break;
									case adminModuleLDAP:
										basePanel = new LdapsPanel("child");
										break;
									case adminModuleBackup:
										basePanel = new BackupPanel("child");
										break;
									case adminModuleServers:
										basePanel = new ServersPanel("child");
										break;
								}
								
								if (basePanel != null) {
									target.add(contents.replace(basePanel));
									basePanel.onMenuPanelLoad(target);
								}
								
								target.appendJavaScript("location.hash = '" + JavaScriptUtils.escapeQuotes(hash) + "';");
							};
						}.add(AttributeModifier.replace("href", hash)));
					}
				}.setReuseItems(true));
			}
		}.setReuseItems(true));

		add(new Behavior() {
			private static final long serialVersionUID = 9067610794087880297L;

			@Override
			public void renderHead(Component component, IHeaderResponse response) {
				String area = WebSession.get().getArea();
				if (area != null) { //hash passed from signin
					response.render(OnDomReadyHeaderItem.forScript("$(\"a[href='" + JavaScriptUtils.escapeQuotes(area) + "']\").click();"));
					WebSession.get().setArea(null);
				} else {
					response.render(OnDomReadyHeaderItem.forScript("$(\"a[href='\" + location.hash + \"']\").click();"));
				}
				super.renderHead(component, response);
			}
		});
	}
	
	private String getHash(MenuActions action, MenuParams params) {
		String hash = "#";
		switch(action) {
			case dashboardModuleStartScreen:
				break;
			case dashboardModuleCalendar:
				hash = "#calendar";
				break;
			case recordModule:
				break;
			case conferenceModuleRoomList:
				String zone = "public";
				switch (params) {
					case myTabButton:
						zone = "my";
						break;
					case privateTabButton:
						zone = "group";
						break;
					case publicTabButton:
					default:
						break;
				}
				hash = "#rooms/" + zone;
				break;
			case eventModuleRoomList:
				break;
			case moderatorModuleUser:
				break;
			case moderatorModuleRoom:
				break;
			case adminModuleUser:
				hash = "#admin/users";
				break;
			case adminModuleConnections:
				break;
			case adminModuleOrg:
				hash = "#admin/groups";
				break;
			case adminModuleRoom:
				hash = "#admin/rooms";
				break;
			case adminModuleConfiguration:
				hash = "#admin/configs";
				break;
			case adminModuleLanguages:
				hash = "#admin/lang";
				break;
			case adminModuleLDAP:
				hash = "#admin/ldaps";
				break;
			case adminModuleBackup:
				hash = "#admin/backup";
				break;
			case adminModuleServers:
				hash = "#admin/servers";
				break;
		}
		return hash;
	}
}