/**
    * 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.detail.action;
  
  import info.magnolia.jcr.util.NodeTypes;
  import info.magnolia.pages.app.detail.PageEditorStatus;
  import info.magnolia.rendering.template.registry.TemplateDefinitionRegistry;
  import info.magnolia.ui.CloseHandler;
  import info.magnolia.ui.api.action.ActionExecutionException;
  import info.magnolia.ui.contentapp.Datasource;
  import info.magnolia.ui.contentapp.action.CommitAction;
  import info.magnolia.ui.contentapp.action.CommitActionDefinition;
  import info.magnolia.ui.ValueContext;
  import info.magnolia.ui.editor.FormView;
  import info.magnolia.ui.observation.DatasourceObservation;
  import info.magnolia.ui.vaadin.gwt.client.shared.AbstractElement;
  import info.magnolia.ui.vaadin.gwt.client.shared.ComponentElement;
  
  import javax.inject.Inject;
  import javax.jcr.Node;
  
  import com.vaadin.data.BinderValidationStatus;
  
  /**
   * Adds a component underneath the area passed in {@link info.magnolia.ui.vaadin.gwt.client.shared.AreaElement}.
   * Gets a list of available components for this area and creates a select field.
   */
  public class ChangeComponentTemplateAction extends CommitAction<Node> {
  
      private final FormView<Node> formView;
      private final PageEditorStatus pageEditorStatus;
      private final TemplateDefinitionRegistry templateDefinitionRegistry;
  
      @Inject
      public ChangeComponentTemplateAction(CommitActionDefinition definition,
                                           CloseHandler closeHandler, ValueContext<Node> valueContext, FormView<Node> form,
                                           PageEditorStatus pageEditorStatus, TemplateDefinitionRegistry templateDefinitionRegistry,
                                           DatasourceObservation.Manual datasourceObservation,
                                           Datasource<Node> datasource
      ) {
          super(definition, closeHandler, valueContext, form, datasource, datasourceObservation);
          this.formView = form;
          this.pageEditorStatus = pageEditorStatus;
          this.templateDefinitionRegistry = templateDefinitionRegistry;
      }
  
      @Override
      public void execute() throws ActionExecutionException {
          super.execute();
          if (formView.validate().stream().allMatch(BinderValidationStatus::isOk)) {
              final AbstractElement selectedElement = pageEditorStatus.getSelectedElement();
              final String template = formView.<String>getPropertyValue(NodeTypes.Renderable.TEMPLATE).orElseThrow(ActionExecutionException::new);
              pageEditorStatus.setSelectedElement(new ComponentElement(selectedElement.getWorkspace(), selectedElement.getPath(), templateDefinitionRegistry.getProvider(template).get().getDialog()));
          }
      }
  }