/*
 * Copyright (C) 2009 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.exoplatform.frameworks.jcr.command.web.fckeditor;

import org.apache.commons.chain.Command;
import org.apache.commons.chain.Context;
import org.exoplatform.frameworks.jcr.command.web.GenericWebAppContext;
import org.exoplatform.services.jcr.core.ManageableRepository;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

import javax.jcr.Node;
import javax.jcr.NodeIterator;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Created by The eXo Platform SAS .
 * 
 * @author <a href="mailto:gennady.azarenkov@exoplatform.com">Gennady Azarenkov</a>
 * @version $Id: GetFoldersOrFilesCommand.java 34445 2009-07-24 07:51:18Z dkatayev $
 */

public class GetFoldersOrFilesCommand extends FCKConnectorXMLOutput implements Command
{

   public boolean execute(Context context) throws Exception
   {

      GenericWebAppContext webCtx = (GenericWebAppContext)context;
      HttpServletResponse response = webCtx.getResponse();
      HttpServletRequest request = webCtx.getRequest();

      String filter = (String)context.get("Command");

      String type = (String)context.get("Type");
      if (type == null)
         type = "";

      // To limit browsing set Servlet init param "digitalAssetsPath" with desired JCR path
      // String rootFolderStr =
      // (String)context.get("org.exoplatform.frameworks.jcr.command.web.fckeditor.digitalAssetsPath"
      // );
      //    
      // if(rootFolderStr == null)
      // rootFolderStr = "/";
      //
      // // set current folder
      // String currentFolderStr = get;
      // if(currentFolderStr == null)
      // currentFolderStr = "";
      // else if(currentFolderStr.length() < rootFolderStr.length())
      // currentFolderStr = rootFolderStr;
      //
      // String jcrMapping = (String)context.get(GenericWebAppContext.JCR_CONTENT_MAPPING);
      // if(jcrMapping == null)
      // jcrMapping = DisplayResourceCommand.DEFAULT_MAPPING;
      //
      // String workspace = (String)webCtx.get(AppConstants.DIGITAL_ASSETS_PROP);
      // if(workspace == null)
      // workspace = AppConstants.DEFAULT_DIGITAL_ASSETS_WS;
      //
      // webCtx.setCurrentWorkspace(workspace);
      //
      // Node currentFolder = (Node) webCtx.getSession().getItem(currentFolderStr);
      //
      // initRootElement(filter, type, currentPath, request.getContextPath()+currentPath);
      // String url = request.getContextPath()+jcrMapping+"?"+
      // "workspace="+digitalWS+
      // "&path="+currentFolderStr;

      // /portal/jcr?workspace=collaboration&path=/Digital Assets/Pictures/my
      // images/39515971.u1D8dTVD.wilersee_5924.jpg

      String workspace = (String)webCtx.get(AppConstants.DIGITAL_ASSETS_PROP);
      if (workspace == null)
         workspace = AppConstants.DEFAULT_DIGITAL_ASSETS_WS;

      String currentFolderStr = getCurrentFolderPath(webCtx);

      webCtx.setCurrentWorkspace(workspace);
      Node currentFolder = (Node)webCtx.getSession().getItem(currentFolderStr);

      String repoName = ((ManageableRepository)webCtx.getSession().getRepository()).getConfiguration().getName();

      String url = request.getContextPath() + makeRESTPath(repoName, workspace, currentFolderStr);

      initRootElement(filter, type, currentFolderStr, url);

      Document doc = rootElement.getOwnerDocument();
      if (!filter.equals("GetFiles"))
      {
         Element nodesElement = rootElement.getOwnerDocument().createElement("Folders");
         rootElement.appendChild(nodesElement);
         NodeIterator nodeList = currentFolder.getNodes();
         while (nodeList.hasNext())
         {
            Node n = nodeList.nextNode();
            // System.out.println(" >>> "+n.getPath());
            if (n.isNodeType("nt:folder") || n.isNodeType("nt:unstructured"))
            {
               Element folderElement = doc.createElement("Folder");
               folderElement.setAttribute("name", n.getName());
               nodesElement.appendChild(folderElement);
            }
         }
      }

      if (!filter.equals("GetFolders"))
      {
         Element nodesElement = rootElement.getOwnerDocument().createElement("Files");
         rootElement.appendChild(nodesElement);
         NodeIterator nodeList = currentFolder.getNodes();
         while (nodeList.hasNext())
         {
            Node n = nodeList.nextNode();
            // System.out.println(" >>> " + n.getPath() + " "
            // + n.isNodeType("nt:file") + " " + n.getPrimaryNodeType().getName());
            if (n.isNodeType("nt:file"))
            {
               Element fileElement = doc.createElement("File");
               long size = n.getNode("jcr:content").getProperty("jcr:data").getLength();
               fileElement.setAttribute("name", n.getName());
               fileElement.setAttribute("size", "" + size);
               nodesElement.appendChild(fileElement);
            }
         }
      }

      outRootElement(response);

      return false;
   }

}