/**
    * This file Copyright (c) 2003-2011 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.module.blossom.dialog;
  
  import java.lang.reflect.Field;
  import javax.jcr.RepositoryException;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.springframework.util.ReflectionUtils;
  
  import info.magnolia.cms.core.Content;
  import info.magnolia.cms.gui.dialog.Dialog;
  import info.magnolia.module.admininterface.DialogMVCHandler;
  import info.magnolia.module.admininterface.SaveHandler;
  import info.magnolia.module.admininterface.dialogs.ConfiguredDialog;
  import info.magnolia.objectfactory.Components;
  
  /**
   * Extension hook that creates dialogs for Blossom managed dialogs.
   *
   * @since 1.1.1
   */
  public class BlossomConfiguredDialog extends ConfiguredDialog {
  
      private BlossomDialogDescription dialogDescription;
      private DialogCreationContext context;
  
      public BlossomConfiguredDialog(String name, HttpServletRequest request, HttpServletResponse response, Content configNode) {
          super(name, request, response, configNode);
  
          BlossomDialogRegistry dialogRegistry = Components.getComponent(BlossomDialogRegistry.class);
          dialogDescription = dialogRegistry.getDialogDescription(super.getName());
      }
  
      @Override
      protected Dialog createDialog(Content configNode, Content storageNode) throws RepositoryException {
  
          try {
  
              context = new DialogCreationContext();
              context.setRequest(request);
              context.setResponse(response);
              context.setConfigNode(configNode);
              context.setWebsiteNode(storageNode);
              context.setWebsitePath(path);
  
              DialogCreator dialogCreator = dialogDescription.getDialogCreator();
              DialogFactoryMetaData factoryMetaData = dialogDescription.getFactoryMetaData();
              dialogCreator.createDialog(factoryMetaData, context);
  
              return context.getDialog();
  
          } catch (RepositoryException e) {
              throw e;
          } catch (RuntimeRepositoryException e) {
              throw e.getNestedException();
          } catch (RuntimeException e) {
              throw e;
          } catch (Exception e) {
              throw new RepositoryException(e);
          }
      }
  
      /**
       * This is required since DialogMVCHandler.configureDialog() uses the private internal field instead of the supplied
       * argument. This setter uses reflection to force a value into that field. Use before called configureSaveHandler().
       * For more details see MAGNOLIA-3299.
      */
     private void setSaveHandler(SaveHandler saveHandler) throws IllegalAccessException, NoSuchFieldException {
         Field field = DialogMVCHandler.class.getDeclaredField("saveHandler");
         ReflectionUtils.makeAccessible(field);
         field.set(this, saveHandler);
     }
 
     @Override
     protected SaveHandler getSaveHandler() {
         if (context.getSaveHandler() != null) {
             try {
                 setSaveHandler(context.getSaveHandler());
             } catch (IllegalAccessException e) {
                 throw new RuntimeException("Unable to set SaveHandler", e);
             } catch (NoSuchFieldException e) {
                 throw new RuntimeException("Unable to set SaveHandler", e);
             }
             configureSaveHandler(context.getSaveHandler());
             return context.getSaveHandler();
         }
         return super.getSaveHandler();
     }
 }