/**
    * This file Copyright (c) 2018 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.admincentral.apps.messages;
  
  import info.magnolia.context.MgnlContext;
  import info.magnolia.ui.api.app.AppContext;
  import info.magnolia.ui.api.app.AppView;
  import info.magnolia.ui.api.app.SubAppDescriptor;
  import info.magnolia.ui.api.location.DefaultLocation;
  import info.magnolia.ui.api.location.Location;
  import info.magnolia.ui.api.message.Message;
  import info.magnolia.ui.framework.app.BaseApp;
  import info.magnolia.ui.framework.message.MessagesManager;
  
  import javax.inject.Inject;
  
  /**
   * Message content application class.
   */
  public class MessageContentApp extends BaseApp {
  
      private final MessagesManager.MessageListener messageListener;
      private final MessagesManager messagesManager;
      private final String userName;
  
      @Inject
      public MessageContentApp(AppContext appContext, AppView view, MessagesManager messagesManager) {
          super(appContext, view);
          view.asVaadinComponent().addStyleName("message-content-app");
          this.messagesManager = messagesManager;
  
          messageListener = new MessagesManager.MessageListener() {
              @Override
              public void messageSent(Message message) {
                  updateMessagesSubAppCaption(appContext, view);
              }
  
              @Override
              public void messageCleared(Message message) {
                  updateMessagesSubAppCaption(appContext, view);
              }
  
              @Override
              public void messageRemoved(String id) {
                  updateMessagesSubAppCaption(appContext, view);
              }
          };
          this.userName = MgnlContext.getUser().getName();
      }
  
      @Override
      public void start(Location location) {
          this.appContext.getAppDescriptor().getSubApps().values()
                  .stream()
                  .filter((descriptor) -> !descriptor.isClosable())
                  .forEach(this::openSubApp);
          super.start(location);
          this.messagesManager.registerMessagesListener(userName, messageListener);
      }
  
      @Override
      public void stop() {
          this.messagesManager.registerMessagesListener(this.userName, messageListener);
          super.stop();
  
      }
  
      private void openSubApp(SubAppDescriptor subAppDescriptor) {
         String appName = this.getAppContext().getAppDescriptor().getName();
         String subAppId = subAppDescriptor.getName();
         this.getAppContext().openSubApp(new DefaultLocation("app", appName, subAppId));
     }
 
     private void updateMessagesSubAppCaption(AppContext appContext, AppView view) {
         appContext.getSubAppContexts().stream().forEach(subAppContext -> view.updateCaption(subAppContext.getInstanceId(), subAppContext.getSubApp().getCaption()));
     }
 }