/*
** Luxor - XML User Interface Language (XUL) Toolkit
** Copyright (c) 2001, 2002 by Gerald Bauer
**
** This program is free software.
**
** You may redistribute it and/or modify it under the terms of the GNU
** General Public License as published by the Free Software Foundation.
** Version 2 of the license should be included with this distribution in
** the file LICENSE, as well as License.html. If the license is not
** included with this distribution, you may find a copy at the FSF web
** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
** Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA.
**
** THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND,
** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR
** OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY
** CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR
** REDISTRIBUTION OF THIS SOFTWARE.
**
*/

package luxor.http.resource;

import java.io.*;
import java.util.*;
import luxor.config.*;
import luxor.constant.*;
import luxor.spi.*;
import luxor.template.*;
import luxor.util.*;
import luxor.*;

public class DirectoryResource implements WebResource
{

   byte _content[];
   long _contentLength;
   String _contentType;

   File _dir;

   /**
    *  additional user-supplied http headers
    */
   List _httpHeader;
   String _name;

   public DirectoryResource( String name, File dir )
   {
      this( name, dir, Collections.EMPTY_LIST );
   }

   public DirectoryResource( String name, File dir, List httpHeader )
   {
      _name = name;

      _dir = dir;
      _httpHeader = httpHeader;

      File unsortedFiles[] = dir.listFiles();

      ArrayList dirs = new ArrayList();
      ArrayList files = new ArrayList();

      for( int i = 0; i < unsortedFiles.length; i++ )
      {
         File file = unsortedFiles[i];
         if( file.isDirectory() )
            dirs.add( file );
         else
            files.add( file );
      }

      FileComparator comp = new FileComparator();
      Collections.sort( dirs, comp );
      Collections.sort( files, comp );

      HashMap data = new HashMap();
      data.put( "name", name );
      data.put( "dirs", dirs );
      data.put( "files", files );

      String html = TemplateManager.getTemplateManager().
            getBuiltInTemplate( data, Constants.TEMPLATE_HTTP_DIRECTORY );

      _content = html.getBytes();
      _contentLength = _content.length;
      _contentType = "text/html";
   }

   public byte[] getContent()
   {
      return _content;
   }

   public long getContentLength()
   {
      return _contentLength;
   }

   public String getContentType()
   {
      return _contentType;
   }

   public String getHeader()
   {
      StringBuffer header = new StringBuffer();

      header.append( "HTTP/1.0 200 OK\r\n" );
      header.append( Http.Header.DATE + ": " + DateUtils.getHttpDate() + "\r\n" );
      header.append( Http.Header.SERVER + ": " + Constants.LUXOR_WEB_SERVER_TITLE + "\r\n" );

      // add custom headers such as pragma: no-cache
      Iterator it = _httpHeader.iterator();
      while( it.hasNext() )
      {
         String line = ( String ) it.next();
         header.append( line + "\r\n" );
      }

      header.append( Http.Header.CONTENT_LENGTH + ": " + _contentLength + "\r\n" );
      header.append( Http.Header.CONTENT_TYPE + ": " + _contentType + "\r\n" );
      header.append( "\r\n" );

      return header.toString();
   }

   public String getName()
   {
      return _name;
   }

   public int getResponseCode()
   {
      return 200;
   }

   public String getResponseMessage()
   {
      return "OK";
   }
}