/**
    * 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.banner;
  
  import info.magnolia.event.EventBus;
  import info.magnolia.i18nsystem.SimpleTranslator;
  import info.magnolia.ui.api.event.AdmincentralEventBus;
  import info.magnolia.ui.api.location.DefaultLocation;
  import info.magnolia.ui.api.location.LocationController;
  import info.magnolia.ui.api.message.Message;
  import info.magnolia.ui.contentapp.detail.DetailLocation;
  import info.magnolia.ui.framework.message.MessageEvent;
  import info.magnolia.ui.framework.message.MessageEventHandler;
  
  import java.util.stream.Stream;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  
  import com.google.common.collect.Lists;
  import com.vaadin.ui.Button;
  import com.vaadin.ui.CssLayout;
  
  /**
   * Banner container is a wrapper layout around {@link Banner}s. It it also subscribed to listen to the {@link MessageEvent}s.
   * When {@link MessageEvent} occurs, container will create banner based on the message type and adds it to the layout.
   */
  public class BannerContainer extends CssLayout implements MessageEventHandler {
      private final EventBus eventBus;
  
      private final LocationController locationController;
  
      private final SimpleTranslator i18n;
  
      @Inject
      public BannerContainer(@Named(AdmincentralEventBus.NAME) EventBus eventBus, LocationController locationController, SimpleTranslator i18n) {
          this.eventBus = eventBus;
          this.locationController = locationController;
          this.i18n = i18n;
  
          initialize();
      }
  
      private void initialize() {
          setWidth(100, Unit.PERCENTAGE);
          addStyleNames("banner-container");
          eventBus.addHandler(MessageEvent.class, this);
      }
  
      @Override
      public void messageSent(MessageEvent event) {
          final Message message = event.getMessage();
          Banneranner/Banner.html#Banner">Banner banner = new Banner(message);
          Button readMoreButton = createReadMoreButton(message);
          banner.addButton(readMoreButton);
  
          if (getAllBanners().count() > 0) {
              Button readAllButton = createReadAllButton();
              banner.addButton(readAllButton);
              // we allow to display only one banner at a time
              closeAllBanners();
          }
  
          setHeight("80px");
          addComponent(banner);
      }
  
      private Button createReadMoreButton(Message message) {
         return new Button(i18n.translate("ui.banner.button.readmore"), e -> {
             closeAllBanners();
             goToNotificationDetail(message.getId());
         });
     }
 
     private Button createReadAllButton() {
         return new Button(i18n.translate("ui.banner.button.readall"), e -> {
             closeAllBanners();
             goToNotifications();
         });
     }
 
     private void goToNotificationDetail(String messageId) {
         locationController.goTo(new DetailLocation("notifications", "detail", messageId));
     }
 
     private void closeAllBanners() {
         getAllBanners().forEach(this::removeBanner);
     }
 
     private Stream<Banner> getAllBanners() {
         return Lists.newArrayList(iterator()).stream().filter(b -> b instanceof Banner./../../info/magnolia/admincentral/banner/Banner.html#Banner">Banner).map(b -> (Banner) b);
     }
 
     private void goToNotifications() {
         locationController.goTo(new DefaultLocation("app", "notifications"));
     }
 
     @Override
     public void messageCleared(MessageEvent event) {
     }
 
     @Override
     public void messageRemoved(MessageEvent messageEvent) {
     }
 
     public void removeBanner(Banner banner) {
         setHeight("0px");
         removeComponent(banner);
     }
 }