/**
    * 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.usermenu;
  
  import info.magnolia.admincentral.usermenu.actions.UserActionExecutor;
  import info.magnolia.cms.security.MgnlUserManager;
  import info.magnolia.cms.security.User;
  import info.magnolia.icons.MagnoliaIcons;
  import info.magnolia.ui.api.action.ActionExecutionException;
  import info.magnolia.ui.api.message.Message;
  import info.magnolia.ui.api.message.MessageType;
  import info.magnolia.ui.api.view.View;
  import info.magnolia.ui.framework.message.MessagesManager;
  import info.magnolia.ui.theme.ResurfaceTheme;
  
  import org.apache.commons.lang3.StringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.vaadin.contextmenu.ContextMenu;
  import com.vaadin.ui.Button;
  import com.vaadin.ui.Component;
  import com.vaadin.ui.UI;
  import com.vaadin.ui.VerticalLayout;
  
  /**
   * View implementation of UserMenu admincentral component.
   */
  public class UserMenu implements View {
  
      private static final Logger log = LoggerFactory.getLogger(UserMenu.class);
  
      private final UI ui;
      private final UserActionExecutor actionExecutor;
      private final MessagesManager messagesManager;
      private final User user;
  
      public UserMenu(UI ui, UserActionExecutor actionExecutor, MessagesManager messagesManager, User user) {
          this.ui = ui;
          this.actionExecutor = actionExecutor;
          this.messagesManager = messagesManager;
          this.user = user;
      }
  
      @Override
      public Component asVaadinComponent() {
          VerticalLayout layout = new VerticalLayout();
          layout.setSizeUndefined();
          layout.setMargin(true);
          layout.setSpacing(false);
          layout.addStyleName("menu-component");
  
          // no-op button, just for the looks
          Button hamburger = new Button(MagnoliaIcons.HAMBURGER_MENU);
          hamburger.addStyleNames(ResurfaceTheme.BUTTON_ICON);
          hamburger.setDescription(getUserName());
          layout.addComponent(hamburger);
  
          ContextMenu contextMenu = new ContextMenu(hamburger, false);
          hamburger.addClickListener(event -> contextMenu.open());
  
          actionExecutor.getActions().forEach(action -> contextMenu.addItem(action.getLabel(), MagnoliaIcons.forCssClass(action.getIcon()).orElse(null), selectedItem -> this.onAction(action.getName())));
  
          return layout;
      }
  
      private String getUserName() {
          String title = user.getProperty(MgnlUserManager.PROPERTY_TITLE);
         String name = user.getName();
         if (StringUtils.isNotEmpty(title) && !title.equals(name)) {
             return String.format("%s (%s)", title, name);
         } else {
             return name;
         }
     }
 
     private void onAction(String actionName) {
         try {
             actionExecutor.execute(actionName);
         } catch (ActionExecutionException e) {
             Message error = new Message(MessageType.ERROR, "An error occurred while executing an action.", e.getMessage());
             log.error("An error occurred while executing action [{}]", actionName, e);
             messagesManager.sendLocalMessage(error);
         }
     }
 }