/**
    * This file Copyright (c) 2020 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 info.magnolia.resourceloader.Resource;
  import info.magnolia.resourceloader.ResourceOrigin;
  import info.magnolia.resources.app.data.ResourceHelper;
  import info.magnolia.ui.CloseHandler;
  import info.magnolia.ui.ValueContext;
  import info.magnolia.ui.api.action.ActionExecutionException;
  import info.magnolia.ui.contentapp.Datasource;
  import info.magnolia.ui.contentapp.action.CloseAction;
  import info.magnolia.ui.editor.FormView;
  import info.magnolia.ui.editor.JcrBinaryHelper;
  import info.magnolia.ui.observation.DatasourceObservation;
  
  import javax.jcr.Node;
  
  /**
   * Abstract class for adding a resource to the workspace tree.
   * The implementation can be customized by overriding {@link AbstractAddResourceAction#addResource(Resource, Node)}.
   */
  public abstract class AbstractAddResourceAction  extends CloseAction<AddResourceActionDefinition> implements ResourceHelper, JcrBinaryHelper {
  
      private final ValueContext<Resource> valueContext;
      private final FormView<Resource> form;
      private final Datasource<Resource> datasource;
      private final DatasourceObservation.Manual datasourceObservation;
      private final ResourceOrigin resourceOrigin;
  
      public AbstractAddResourceAction(AddResourceActionDefinition definition, CloseHandler closeHandler,
                                  ValueContext<Resource> valueContext, FormView<Resource> form,
                                  Datasource<Resource> datasource,
                                  DatasourceObservation.Manual datasourceObservation,
                                  ResourceOrigin resourceOrigin) {
          super(definition, closeHandler);
          this.form = form;
          this.valueContext = valueContext;
          this.datasource = datasource;
          this.datasourceObservation = datasourceObservation;
          this.resourceOrigin = resourceOrigin;
      }
  
      @Override
      public void execute() throws ActionExecutionException {
          Resource selectedResource = valueContext.getSingle().orElse(resourceOrigin.getRoot());
          Node rootNode = getJcrNode(selectedResource.getOrigin().getRoot()).orElseThrow(() -> new IllegalStateException("Can't " +
                  "retrieve root node from " + selectedResource));
  
          addResource(selectedResource, rootNode);
  
          datasourceObservation.trigger();
          super.execute();
      }
  
      /**
       * Add custom implementation for adding a resource by overriding this method.
       *
       * @param parent The resource to which resource being created is to be added.
       * @param rootNode The root node in the workspace.
       */
      protected abstract void addResource(Resource parent, Node rootNode);
  }