/**
    * This file Copyright (c) 2014-2018 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.ui.admincentral.shellapp.pulse.task.action;
  
  import info.magnolia.cms.security.SecuritySupport;
  import info.magnolia.cms.security.User;
  import info.magnolia.cms.security.UserManager;
  import info.magnolia.context.MgnlContext;
  import info.magnolia.i18nsystem.SimpleTranslator;
  import info.magnolia.task.Task;
  import info.magnolia.task.TasksManager;
  import info.magnolia.ui.admincentral.shellapp.pulse.task.DefaultTaskDetailPresenter;
  import info.magnolia.ui.api.message.Message;
  import info.magnolia.ui.api.message.MessageType;
  import info.magnolia.ui.api.shell.Shell;
  import info.magnolia.ui.framework.message.MessagesManager;
  import info.magnolia.ui.vaadin.overlay.MessageStyleTypeEnum;
  
  import java.util.Map;
  
  import javax.inject.Inject;
  
  import org.apache.commons.lang3.StringUtils;
  
  /**
   * Action for claiming a task.
   */
  public class ClaimTaskAction extends AbstractTaskAction<ClaimTaskActionDefinition> {
  
      private final MessagesManager messagesManager;
      private final SimpleTranslator i18n;
      private SecuritySupport securitySupport;
  
      @Inject
      public ClaimTaskAction(ClaimTaskActionDefinition definition, Task task, TasksManager tasksManager, DefaultTaskDetailPresenter taskPresenter, Shell shell, MessagesManager messagesManager, SimpleTranslator i18n, SecuritySupport securitySupport) {
          super(definition, task, tasksManager, taskPresenter, shell);
          this.messagesManager = messagesManager;
          this.i18n = i18n;
          this.securitySupport = securitySupport;
      }
  
      @Override
      protected void executeTask(TasksManager taskManager, Task task) {
          final String userId = MgnlContext.getUser().getName();
          log.debug("User [{}] is claiming workflow human task named [{}]", userId, task.getName());
  
          switch (task.getStatus()) {
          case Created:
              claimTask(taskManager, task, userId);
              break;
  
          case InProgress:
              claimTask(taskManager, task, userId);
  
              if (getDefinition().isNotifyPreviousAssignee()) {
                  notifyPreviousAssignee(task, userId);
              }
              break;
  
          default:
              break;
          }
      }
  
      private void claimTask(TasksManager taskManager, Task task, String userId) {
          String taskId = task.getId();
          taskManager.claim(taskId, userId);
          getTaskPresenter().onUpdateDetailView(String.valueOf(taskId));
 
         getShell().openNotification(MessageStyleTypeEnum.INFO, true, getDefinition().getSuccessMessage());
     }
 
     private void notifyPreviousAssignee(Task task, String userId) {
         if (task.getContent() != null) {
             Map<String, Object> taskContent = task.getContent();
             String repository = taskContent.containsKey("repository") ? taskContent.get("repository").toString() : "";
             String path = taskContent.containsKey("path") ? taskContent.get("path").toString() : "";
             Message message = new Message(MessageType.INFO, i18n.translate("pulse.tasks.reclaim.subject"), i18n.translate("pulse.tasks.reclaim.message", getTaskName(task), repository, path, getUsername(userId)));
             messagesManager.sendMessage(task.getActorId(), message);
         }
     }
 
     private String getUsername(String userId) {
         UserManager userManager = securitySupport.getUserManager();
         User user = userManager.getUser(userId);
         return StringUtils.isNotEmpty(user.getProperty("title")) ? user.getProperty("title") : userId;
     }
 
     private String getTaskName(Task task) {
         String taskNameKey = "pulse.tasks.reclaim." + task.getName();
         String taskName = i18n.translate(taskNameKey);
         return StringUtils.isEmpty(taskName) || taskNameKey.equals(taskName) ? String.format("'%s'", task.getName()) : taskName;
     }
 }