/**
    * This file Copyright (c) 2013-2018 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.pages.app.action;
  
  import info.magnolia.event.EventBus;
  import info.magnolia.ui.api.action.AbstractAction;
  import info.magnolia.ui.api.action.ActionExecutionException;
  import info.magnolia.ui.api.app.SubAppContext;
  import info.magnolia.ui.api.app.SubAppEventBus;
  import info.magnolia.ui.api.event.ContentChangedEvent;
  import info.magnolia.ui.dialog.formdialog.FormDialogPresenter;
  import info.magnolia.ui.dialog.formdialog.FormDialogPresenterFactory;
  import info.magnolia.ui.form.EditorCallback;
  import info.magnolia.ui.vaadin.gwt.client.shared.AbstractElement;
  import info.magnolia.ui.vaadin.integration.jcr.JcrItemAdapter;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Opens a dialog for editing a {@link AbstractElement}. Reads the dialog-name from {@link AbstractElement#getDialog()}
   * which is extracted from the 'cms-comment' on client-side.
   */
  public class EditElementAction extends AbstractAction<EditElementActionDefinition> {
  
      private static final Logger log = LoggerFactory.getLogger(EditElementAction.class);
  
      private final FormDialogPresenterFactory dialogPresenterFactory;
      private final JcrItemAdapter item;
      private final AbstractElement element;
      private final SubAppContext subAppContext;
      private final EventBus eventBus;
  
      @Inject
      public EditElementAction(final JcrItemAdapter item, final EditElementActionDefinition definition, final AbstractElement element,
                               final SubAppContext subAppContext, final @Named(SubAppEventBus.NAME) EventBus eventBus,
                               final FormDialogPresenterFactory dialogPresenterFactory) {
          super(definition);
          this.item = item;
          this.element = element;
          this.subAppContext = subAppContext;
          this.eventBus = eventBus;
          this.dialogPresenterFactory = dialogPresenterFactory;
      }
  
      @Override
      public void execute() throws ActionExecutionException {
          final String dialogId = element.getDialog();
          final FormDialogPresenter formDialogPresenter = dialogPresenterFactory.createFormDialogPresenter(dialogId);
          formDialogPresenter.start(item, dialogId, subAppContext, new EditElementCallback(formDialogPresenter, item, eventBus));
      }
  
      protected JcrItemAdapter getItem() {
          return item;
      }
  
      protected AbstractElement getElement() {
          return element;
      }
  
      protected SubAppContext getSubAppContext() {
          return subAppContext;
      }
  
      protected EventBus getEventBus() {
         return eventBus;
     }
 
     /**
      * {@link info.magnolia.ui.form.EditorCallback} for {@link info.magnolia.pages.app.action.EditElementAction} which sends {@link info.magnolia.ui.api.event.ContentChangedEvent} on both save and cancel actions.
      */
     public static class EditElementCallback implements EditorCallback {
 
         private final FormDialogPresenter formDialogPresenter;
         private final EventBus eventBus;
         private final JcrItemAdapter item;
 
         @Inject
         public EditElementCallback(FormDialogPresenter formDialogPresenter, JcrItemAdapter item, EventBus eventBus) {
             this.formDialogPresenter = formDialogPresenter;
             this.item = item;
             this.eventBus = eventBus;
         }
 
         @Override
         public void onSuccess(String actionName) {
             eventBus.fireEvent(new ContentChangedEvent(item.getItemId()));
             formDialogPresenter.closeDialog();
         }
 
         @Override
         public void onCancel() {
             formDialogPresenter.closeDialog();
         }
     }
 }