/*

  *   StarOffice News Server

  *   see AUTHORS for the list of contributors

  *

  *   This program is free software: you can redistribute it and/or modify

  *   it under the terms of the GNU General Public License as published by

  *   the Free Software Foundation, either version 3 of the License, or

  *   (at your option) any later version.

  *

  *   This program 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 General Public License for more details.

  *

  *   You should have received a copy of the GNU General Public License

  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.

  */

 package com.so.news.command;

 import java.io.IOException;

 import java.util.ArrayList;

 import com.so.news.NNTPConnection;

 import com.so.news.storage.Group;

 /**

  * Class handling the LIST command.

  * @author Christian Lins

  * @author Dennis Schwerdel

  */

 public class ListCommand extends Command

 {

   public ListCommand(NNTPConnection conn)

   {

     super(conn);

   }

   public boolean process(String[] command) 

     throws Exception

   {

     if (command.length >= 2)

     {

       if (command[1].equalsIgnoreCase("OVERVIEW.FMT"))

       {

         printStatus(215, "information follows");

         printText("Subject:\nFrom:\nDate:\nMessage-ID:\nReferences:\nBytes:\nLines:");

         return true;

       }

       if (command[1].equalsIgnoreCase("NEWSGROUPS"))

       {

         printStatus(215, "information follows");

         ArrayList<Group> list = Group.getAll();

         for (Group g : list)

         {

           printTextLine(g.getName() + "\t" + "-");

         }

         println(".");

         flush();

         return true;

       }

       if (command[1].equalsIgnoreCase("SUBSCRIPTIONS"))

       {

         printStatus(215, "information follows");

         println(".");

         flush();

         return true;

       }

       if (command[1].equalsIgnoreCase("EXTENSIONS"))

       {

         printStatus(202, "Supported NNTP extensions.");

         printTextLine("LISTGROUP");

         println(".");

         flush();

         return true;

       }

       return false;

     }

     printStatus(215, "list of newsgroups follows");

     for (Group g : Group.getAll())

     {

       //if(g.getEstimatedArticleCount() <= 0)

       //  continue;

       printTextLine(g.getName() + " " + g.getLastArticle() + " "

           + g.getFirstArticle() + " y");

     }

     println(".");

     flush();

     return true;

   }

 }