/**
    * This file Copyright (c) 2015-2017 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;
  
  import info.magnolia.context.Context;
  import info.magnolia.task.Task;
  import info.magnolia.task.TasksManager;
  import info.magnolia.ui.admincentral.shellapp.pulse.data.LazyPulseListContainer;
  import info.magnolia.ui.admincentral.shellapp.pulse.item.detail.PulseItemCategory;
  import info.magnolia.ui.admincentral.shellapp.pulse.task.data.TaskQueryDefinition;
  import info.magnolia.ui.admincentral.shellapp.pulse.task.data.TaskQueryFactory;
  
  import java.util.Arrays;
  import java.util.List;
  
  import javax.inject.Inject;
  import javax.inject.Provider;
  
  import com.google.common.collect.Iterables;
  
  /**
   * {@link LazyPulseListContainer} implementation capable of serving {@link Task} objects via
   * {@link TasksManager}. {@link Task.Status} enumeration is used as a grouping criteria.
   */
  public class TasksContainer extends LazyPulseListContainer<Task.Status, TaskQueryDefinition, TaskQueryFactory> {
  
      private TasksManager tasksManager;
  
      @Inject
      public TasksContainer(TasksManager tasksManager,
                            TaskQueryDefinition taskQueryDefinition,
                            Provider<TaskQueryFactory> taskQueryFactoryProvider,
                            Context ctx) {
          super(taskQueryDefinition, taskQueryFactoryProvider, ctx.getUser().getName());
          this.tasksManager = tasksManager;
      }
  
      @Override
      public long size() {
          return tasksManager.getTasksAmountByUserAndStatus(getUserName(), getQueryDefinition().types());
      }
  
      @Override
      public void filterByItemCategory(PulseItemCategory category) {
  
          Task.Status[] statuses;
  
          switch (category) {
          case UNCLAIMED:
              statuses = new Task.Status[]{Task.Status.Created};
              break;
          case ONGOING:
              statuses = new Task.Status[]{Task.Status.InProgress};
              break;
          case DONE:
              statuses = new Task.Status[]{Task.Status.Resolved};
              break;
          case FAILED:
              statuses = new Task.Status[]{Task.Status.Failed};
              break;
          case SCHEDULED:
              statuses = new Task.Status[]{Task.Status.Scheduled};
              break;
          default:
              statuses = Task.Status.values();
          }
  
          List<Task.Status> newStatuses = Arrays.asList(statuses);
         if (!Iterables.elementsEqual(newStatuses, getQueryDefinition().types())) {
             getQueryDefinition().setTypes(newStatuses);
             refresh();
         }
     }
 }