/**

  * Copyright 2010 The Kuali Foundation Licensed under the

  * Educational Community 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.osedu.org/licenses/ECL-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.kuali.student.core.organization.ui.client.view;

 import org.kuali.student.common.messages.dto.MessageList;

 import org.kuali.student.common.ui.client.application.Application;

 import org.kuali.student.common.ui.client.application.ApplicationComposite;

 import org.kuali.student.common.ui.client.application.ApplicationContext;

 import org.kuali.student.common.ui.client.application.KSAsyncCallback;

 import org.kuali.student.common.ui.client.mvc.Controller;

 import org.kuali.student.common.ui.client.service.MessagesRpcService;

 import org.kuali.student.common.ui.client.service.SecurityRpcService;

 import org.kuali.student.common.ui.client.service.SecurityRpcServiceAsync;

 import org.kuali.student.common.ui.client.util.BrowserUtils;

 import org.kuali.student.common.ui.client.widgets.ApplicationPanel;

 import org.kuali.student.core.organization.ui.client.mvc.controller.OrgApplicationManager;

 import org.kuali.student.core.organization.ui.client.theme.OrgTheme;

 import com.google.gwt.core.client.EntryPoint;

 import com.google.gwt.core.client.GWT;

 import com.google.gwt.dom.client.StyleInjector;

 import com.google.gwt.user.client.DOM;

 import com.google.gwt.user.client.History;

 import com.google.gwt.user.client.rpc.SerializationException;

 import com.google.gwt.user.client.rpc.SerializationStreamFactory;

 import com.google.gwt.user.client.ui.SimplePanel;

 public class OrgEntryPoint implements EntryPoint{

     ApplicationComposite app;

     private OrgApplicationManager manager = null;

     SimplePanel content = new SimplePanel();

 //    private OrgMenu orgMenu = new OrgMenu(content);;

     public void onModuleLoad() {

         final ApplicationContext context = Application.getApplicationContext();

         final String injectString = OrgTheme.INSTANCE.getOrgCss().getCssString();

         StyleInjector.injectStylesheet(injectString);

         loadApp(context);

         try {

             MessageList messageList =  getSerializedObject( "i18nMessages");

             context.addMessages(messageList.getMessages());

         } catch (Exception e) {

             GWT.log("Error on ModuleLoad",e);

         }

 //        StyleInjector.injectStylesheet(CoreUIResources.INSTANCE.generalCss().getText());

 //        History.addValueChangeHandler(orgMenu);

         History.fireCurrentHistoryState();

         if(DOM.getElementById("loadingSpinner") != null)

             DOM.removeChild(ApplicationPanel.get().getElement(), DOM.getElementById("loadingSpinner"));

     }

     /* Not used anywhere that I can tell GNL

     public Widget getContent(){

         DockPanel mainPanel = new DockPanel();

         Label pageTitle = new Label(Application.getApplicationContext().getMessage("orgAppTitle"));

         pageTitle.setStyleName("page-title");

         mainPanel.setStyleName("ks-main");

         mainPanel.add(pageTitle, DockPanel.NORTH);

 //        mainPanel.add(orgMenu, DockPanel.WEST);

 //        mainPanel.setCellWidth(orgMenu, "200px");

         mainPanel.add(content, DockPanel.CENTER);

 //        mainPanel.add(new KSButton("Logout", new ClickHandler() {

 //            @Override

 //            public void onClick(ClickEvent event) {

 //                orgMenu.saveState();

 //                Location.assign("http://localhost:18080/cas-server-webapp-3.3.2/login?service="+URL.encodeComponent(Location.getHref()));

 //            }}), DockPanel.NORTH);

         return mainPanel;

     }

     */

     @SuppressWarnings("unchecked")

     public  <T> T getSerializedObject( String name ) throws SerializationException

     {

         String serialized = BrowserUtils.getString( name );

         SerializationStreamFactory ssf = GWT.create( MessagesRpcService.class); // magic

         return (T)ssf.createStreamReader( serialized ).readObject();

     }

     public void loadApp(final ApplicationContext context){

         SecurityRpcServiceAsync securityRpc = GWT.create(SecurityRpcService.class);

         securityRpc.getPrincipalUsername(new KSAsyncCallback<String>(){

             public void handleFailure(Throwable caught) {

                 context.setUserId("Unknown");

                 initScreen();

             }

             @Override

             public void onSuccess(String principalId) {

                 context.setUserId(principalId);

                 initScreen();

             }

         });

     }

     private void initScreen(){

         app = new ApplicationComposite();

         manager = new OrgApplicationManager();

         app.setContent(manager);

 //        app.setContent(getContent());

         ApplicationPanel.get().add(app);

         if(manager.getCurrentView() == null)

             manager.showDefaultView(Controller.NO_OP_CALLBACK);

     }

 }