/**
    * This file Copyright (c) 2019 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 java.util.stream.Collectors.toList;
  
  import info.magnolia.commands.CommandsManager;
  import info.magnolia.context.Context;
  import info.magnolia.jcr.util.NodeTypes;
  import info.magnolia.jcr.util.NodeUtil;
  import info.magnolia.resourceloader.Resource;
  import info.magnolia.ui.ValueContext;
  import info.magnolia.ui.contentapp.async.AsyncActionExecutor;
  import info.magnolia.ui.observation.DatasourceObservation;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import javax.inject.Inject;
  
  import com.machinezoo.noexception.Exceptions;
  
  /**
   * PublishResourceCommandAction can publish resource (and its parents)
   * or can publish deletion of resources marked as deleted.
   */
  public class PublishResourceCommandAction extends ResourceCommandAction<PublishResourceCommandActionDefinition> {
  
      @Inject
      public PublishResourceCommandAction(PublishResourceCommandActionDefinition definition, CommandsManager commandsManager,
                                          ValueContext<Resource> valueContext, Context context, AsyncActionExecutor asyncActionExecutor, DatasourceObservation.Manual datasourceObservation
      ) {
          super(definition, commandsManager, valueContext, context, asyncActionExecutor, datasourceObservation);
      }
  
      @Override
      public void execute() {
          for (Resource resource : getValueContext().get().collect(toList())) {
              if (getDefinition().isDeletion()) {
                  getValueContext().set(getRootForDeletion(resource));
                  super.execute();
              } else {
                  for (Resource r : createPublishingChain(resource)) {
                      getValueContext().set(r);
                      super.execute();
                  }
              }
          }
      }
  
      private List<Resource> createPublishingChain(Resource resource) {
          final List<Resource> resources = new ArrayList<>();
          while (!"/".equals(resource.getPath())) {
              if (isNotActivated(resource)) {
                  resources.add(resource);
              }
              resource = resource.getParent();
          }
          Collections.reverse(resources);
          return resources;
      }
  
      private boolean isNotActivated(Resource resource) {
          return !getJcrNode(resource)
                  .map((Exceptions.wrap().function(NodeTypes.Activatable::getActivationStatus)))
                  .map(status -> status == NodeTypes.Activatable.ACTIVATION_STATUS_ACTIVATED)
                  .orElse(true);
     }
 
     private Resource getRootForDeletion(Resource resource) {
         Resource root = resource;
         while (!"/".equals(resource.getPath()) && isMarkedAsDeleted(resource)) {
             root = resource;
             resource = resource.getParent();
         }
         return root;
     }
 
     private boolean isMarkedAsDeleted(Resource resource) {
         return getJcrNode(resource)
                 .map(node -> Exceptions.wrap().get(() -> NodeUtil.hasMixin(node, NodeTypes.Deleted.NAME)))
                 .orElse(false);
     }
 }