/**
    * This file Copyright (c) 2015 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.message;
  
  import info.magnolia.context.Context;
  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.message.data.MessageQueryDefinition;
  import info.magnolia.ui.admincentral.shellapp.pulse.message.data.MessageQueryFactory;
  import info.magnolia.ui.api.message.MessageType;
  import info.magnolia.ui.framework.message.MessagesManager;
  
  import java.util.Arrays;
  import java.util.List;
  
  import javax.inject.Inject;
  import javax.inject.Provider;
  
  import com.google.common.collect.Iterables;
  
  /**
   * {@link info.magnolia.ui.admincentral.shellapp.pulse.data.LazyPulseListContainer} implementation capable of serving {@link info.magnolia.ui.api.message.Message} objects via
   * {@link MessagesManager}. {@link MessageType} enumeration is used as a grouping criteria.
   */
  public class MessagesContainer extends LazyPulseListContainer<MessageType, MessageQueryDefinition, MessageQueryFactory> {
  
      private final MessagesManager messagesManager;
  
      @Inject
      public MessagesContainer(MessagesManager messagesManager, Context ctx,
                               MessageQueryDefinition messageQueryDefinition,
                               Provider<MessageQueryFactory> messageQueryFactoryProvider) {
          super(messageQueryDefinition, messageQueryFactoryProvider, ctx.getUser().getName());
          this.messagesManager = messagesManager;
      }
  
      @Override
      public void filterByItemCategory(PulseItemCategory category) {
          MessageType[] newVisibleTypes;
          switch (category) {
          case PROBLEM:
              newVisibleTypes = new MessageType[]{MessageType.ERROR, MessageType.WARNING};
              break;
          case INFO:
              newVisibleTypes = new MessageType[]{MessageType.INFO};
              break;
          default:
              newVisibleTypes = MessageType.values();
          }
  
          List<MessageType> newVisibleTypeList = Arrays.asList(newVisibleTypes);
          if (!Iterables.elementsEqual(newVisibleTypeList, getQueryDefinition().types())) {
              getQueryDefinition().setTypes(newVisibleTypeList);
              refresh();
          }
      }
  
      @Override
      public long size() {
          return messagesManager.getMessagesAmount(getUserName(), getQueryDefinition().types());
      }
  }