/**
    * 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.resources.app.action;
  
  import static info.magnolia.ui.vaadin.overlay.MessageStyleTypeEnum.*;
  
  import info.magnolia.context.Context;
  import info.magnolia.event.EventBus;
  import info.magnolia.i18nsystem.SimpleTranslator;
  import info.magnolia.jcr.util.NodeTypes;
  import info.magnolia.jcr.util.NodeUtil;
  import info.magnolia.resourceloader.ResourceOrigin;
  import info.magnolia.resourceloader.jcr.JcrResourceOrigin;
  import info.magnolia.resources.app.workbench.ResourcesContainer;
  import info.magnolia.ui.api.action.ActionExecutionException;
  import info.magnolia.ui.api.app.AppContext;
  import info.magnolia.ui.api.event.AdmincentralEventBus;
  import info.magnolia.ui.api.event.ContentChangedEvent;
  import info.magnolia.ui.vaadin.integration.contentconnector.ContentConnector;
  
  import javax.inject.Named;
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  import javax.jcr.Session;
  
  import com.vaadin.v7.data.Item;
  
  /**
   * Action for removing a hotfix from the resources app.
   *
   * @deprecated since 2.4.2 - use more generic {@link MarkResourceAsDeletedAction} instead.
   */
  @Deprecated
  public class RemoveHotfixAction extends AbstractResourceAction<RemoveHotfixActionDefinition> {
  
      private final Item resourceItem;
      private final Context context;
      private final SimpleTranslator i18n;
      private final AppContext appContext;
      private final EventBus eventBus;
      private final ContentConnector contentConnector;
  
      public RemoveHotfixAction(RemoveHotfixActionDefinition definition, Item resourceItem, Context context, AppContext appContext, SimpleTranslator i18n, @Named(AdmincentralEventBus.NAME) EventBus eventBus, ContentConnector contentConnector, ResourceOrigin origin) {
          super(definition, origin);
          this.resourceItem = resourceItem;
          this.context = context;
          this.i18n = i18n;
          this.appContext = appContext;
          this.eventBus = eventBus;
          this.contentConnector = contentConnector;
      }
  
      @Override
      public void execute() throws ActionExecutionException {
          String resourcePath = (String) resourceItem.getItemProperty(ResourcesContainer.RESOURCE_PATH).getValue();
          String origin = (String) resourceItem.getItemProperty(ResourcesContainer.ORIGIN_NAME_PROPERTY_ID).getValue();
          boolean isOverriding = (boolean) resourceItem.getItemProperty(ResourcesContainer.OVERRIDING_PROPERTY_ID).getValue();
  
          if (!origin.equals("jcr") || !isOverriding) {
              throw new ActionExecutionException(new IllegalStateException("Hotfix is not present"));
          }
  
          try {
              Session jcrSession = context.getJCRSession(JcrResourceOrigin.RESOURCES_WORKSPACE);
              Node node = jcrSession.getNode(resourcePath);
              boolean hasSiblings = NodeUtil.getSiblings(node).iterator().hasNext();
  
              if (hasSiblings) {
                 node.remove();
             } else {
                 // will recursively remove hotfix itself and all empty folders in the hierarchy containing it
                 removeNodeAndEmptyAncestorsFromJcr(node);
             }
 
             jcrSession.save();
 
             Object newResourcePath = contentConnector.getItemIdByUrlFragment(resourcePath);
             reflectChangesForItem(newResourcePath);
 
             appContext.openNotification(INFO, true, i18n.translate("resources.actions.removeHotfix.notification.success"));
         } catch (Exception e) {
             appContext.openNotification(ERROR, false, i18n.translate("resources.actions.removeHotfix.notification.error"));
             throw new ActionExecutionException(e);
         }
     }
 
     private void reflectChangesForItem(Object itemId) {
         eventBus.fireEvent(new ContentChangedEvent(itemId));
     }
 
     private void removeNodeAndEmptyAncestorsFromJcr(Node node) throws RepositoryException {
         if (node.getDepth() == 0) {
             return;
         }
         final boolean hasNoMoreResources = !NodeUtil.getNodes(node, NodeTypes.Content.NAME).iterator().hasNext();
         if (hasNoMoreResources) {
             Node parent = node.getParent();
             node.remove();
             removeNodeAndEmptyAncestorsFromJcr(parent);
         }
     }
 }