/**
    * 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.resources.app.action;
  
  import info.magnolia.event.EventBus;
  import info.magnolia.i18nsystem.SimpleTranslator;
  import info.magnolia.resourceloader.Resource;
  import info.magnolia.resourceloader.ResourceOrigin;
  import info.magnolia.resources.app.ResourcesContentConnector;
  import info.magnolia.ui.api.action.ActionExecutionException;
  import info.magnolia.ui.api.context.UiContext;
  import info.magnolia.ui.api.event.AdmincentralEventBus;
  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.integration.contentconnector.ContentConnector;
  import info.magnolia.ui.vaadin.overlay.MessageStyleTypeEnum;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  
  import org.apache.commons.lang3.StringUtils;
  
  import com.vaadin.data.Item;
  
  /**
   * Action for uploading a resource from the resources app.
   * <p>
   * This action opens a dialog to the user for uploading a file.
   * Once the dialog is confirmed, {@code ResourcesContentConnector#createNewResource(Resource, Item)} handles saving the uploaded resource.
   * <p>
   * It might be creating the required path in {@code JcrResourceOrigin} if it is not present yet.
   *
   * @see UploadResourceActionDefinition
   */
  public class UploadResourceAction extends AbstractResourceAction<UploadResourceActionDefinition> {
  
      private final Item resourceItem;
      private final FormDialogPresenterFactory formDialogPresenterFactory;
      private final UiContext uiContext;
      private final SimpleTranslator i18n;
      private final ResourcesContentConnector contentConnector;
      private final EventBus eventBus;
  
      @Inject
      public UploadResourceAction(UploadResourceActionDefinition definition, Item resourceItem, ContentConnector contentConnector, FormDialogPresenterFactory formDialogPresenterFactory, UiContext uiContext, SimpleTranslator i18n, @Named(AdmincentralEventBus.NAME) EventBus eventBus, ResourceOrigin origin) {
          super(definition, origin);
          this.resourceItem = resourceItem;
          this.formDialogPresenterFactory = formDialogPresenterFactory;
          this.uiContext = uiContext;
          this.i18n = i18n;
          this.contentConnector = (ResourcesContentConnector) contentConnector;
          this.eventBus = eventBus;
      }
  
      @Override
      public void execute() throws ActionExecutionException {
          String dialogName = getDefinition().getDialogName();
          if (StringUtils.isBlank(dialogName)) {
              uiContext.openNotification(MessageStyleTypeEnum.ERROR, false, i18n.translate("ui-framework.actions.no.dialog.definition", getDefinition().getName()));
              return;
          }
  
          final FormDialogPresenter formDialogPresenter = formDialogPresenterFactory.createFormDialogPresenter(dialogName);
  
          if (formDialogPresenter == null) {
              uiContext.openNotification(MessageStyleTypeEnum.ERROR, false, i18n.translate("ui-framework.actions.dialog.not.registered", dialogName));
             return;
         }
 
         formDialogPresenter.start(resourceItem, getDefinition().getDialogName(), uiContext, new EditorCallback() {
 
             @Override
             public void onSuccess(String actionName) {
                 final Resource parentResource = unwrapResource(resourceItem);
                 final Resource newResource = contentConnector.createNewResource(parentResource, resourceItem);
                 eventBus.fireEvent(new ContentChangedEvent(newResource.getPath(), true));
 
                 formDialogPresenter.closeDialog();
             }
 
             @Override
             public void onCancel() {
                 formDialogPresenter.closeDialog();
             }
         });
     }
 }