/**
    * This file Copyright (c) 2008-2011 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.admininterface.trees;
  
  import java.util.Collection;
  
  import info.magnolia.cms.core.Content;
  import info.magnolia.cms.core.ItemType;
  import info.magnolia.module.admininterface.AdminTreeMVCHandler;
  import info.magnolia.objectfactory.Components;
  import info.magnolia.rendering.template.TemplateDefinition;
  import info.magnolia.rendering.template.assignment.TemplateDefinitionAssignment;
  import info.magnolia.rendering.template.registry.TemplateDefinitionRegistry;
  
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  
  /**
   * @author philipp
   * @version $Id$
   *
   */
  public class WebsiteTreeHandler extends AdminTreeMVCHandler {
      private static final Logger log = LoggerFactory.getLogger(WebsiteTreeHandler.class);
  
      private TemplateDefinitionRegistry templateRegistry;
      private TemplateDefinitionAssignment templateAssignment;
  
      public WebsiteTreeHandler(String name, HttpServletRequest request, HttpServletResponse response) {
          super(name, request, response);
          // TODO dlipp: use IoC.
          templateAssignment = Components.getComponent(TemplateDefinitionAssignment.class);
          templateRegistry = Components.getComponent(TemplateDefinitionRegistry.class);
      }
  
      @Override
      public String createNode() {
          String view = super.createNode();
          try {
              // todo: default template
              if (this.getCreateItemType().equals(ItemType.PAGE.getSystemName())) {
                  // TODO dlipp: use JCR-API directly
                  Content parentNode = this.getHierarchyManager().getContent(this.getPath());
                  Content newNode = parentNode.getContent(this.getNewNodeName());
                  TemplateDefinition newTemplate = getDefaultTemplate(newNode.getJCRNode());
                  if (newTemplate != null) {
                      newNode.getMetaData().setTemplate(newTemplate.getId());
                      newNode.save();
                  }
              }
          }
          catch (RepositoryException e) {
              log.error("can't set template", e);
          }
          return view;
      }
  
      protected TemplateDefinition getDefaultTemplate(Node node) {
          return templateAssignment.getDefaultTemplate(node);
      }
  
      @Override
     public String show() {
         //show start page if no templates present yet or if only available template is mgnlDeleted
         Collection<TemplateDefinition> templateDefinitions = templateRegistry.getTemplateDefinitions();
         //TODO I know this hardcoded check is ugly but could not find a better way
         boolean isDeletedNodeTemplate = templateDefinitions.size() == 1 && "adminInterface:mgnlDeleted".equals(templateDefinitions.iterator().next().getId());
         if (templateDefinitions.isEmpty() || isDeletedNodeTemplate) {
             try {
                 request.getRequestDispatcher("/.magnolia/pages/quickstart.html").forward(request, response);
                 return "";
             } catch (Exception e) {
                 log.error("Couldn't forward to quickstart page: " + e.getMessage());
             }
         }
         return super.show();
     }
 }