/*

  *   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.text.SimpleDateFormat;

 import java.util.Locale;

 import java.util.Map;

 import com.so.news.Debug;

 import com.so.news.NNTPConnection;

 import com.so.news.storage.Article;

 /**

  * Class handling the ARTICLE command.

  * @author Christian Lins

  * @author Dennis Schwerdel

  */

 public class ArticleCommand extends Command

 {

   public ArticleCommand(NNTPConnection connection)

   {

     super(connection);

   }

   public boolean process(String[] command) throws IOException

   {

     String commandName = command[0];

     // untested, RFC977 compliant

     Article article = null;

     if (command.length <= 1)

     {

       article = getCurrentArticle();

       if (article == null)

       {

         printStatus(420, "no current article has been selected");

         return true;

       }

     }

     else if (command[1].matches(NNTPConnection.MESSAGE_ID_PATTERN))

     {

       // Message-ID

       article = Article.getByMessageID(command[1]);

       if (article == null)

       {

         printStatus(430, "no such article found");

         return true;

       }

     }

     else

     {

       // Message Number

       try

       {

         int num = Integer.parseInt(command[1]);

         article = Article.getByNumberInGroup(connection.getCurrentGroup(), num);

       }

       catch (Exception ex)

       {

         ex.printStackTrace(Debug.getInstance().getStream());

         System.err.println(ex.getLocalizedMessage());

       }

       if (article == null)

       {

         printStatus(423, "no such article number in this group");

         return true;

       }

       setCurrentArticle(article);

     }

     if (commandName.equalsIgnoreCase("ARTICLE"))

     {

       printStatus(220, article.getNumberInGroup() + " " + article.getMessageID()

           + " article retrieved - head and body follow");

       Map<String, String> header = article.getHeader();

       for(Map.Entry<String, String> entry : header.entrySet())

       {

         if(entry.getKey().equals("Date"))

         {

           SimpleDateFormat sdf = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss Z", Locale.US);

           printTextPart("Date: " + sdf.format(article.getDate()));

         }

         else

           printTextPart(entry.getKey() + ": " + entry.getValue());

       }

       println("");

       printText(article.getBody());

     }

     else if (commandName.equalsIgnoreCase("HEAD"))

     {

       printStatus(500, "No longer supported! Use XOVER instead.");

       return false;

     }

     else if (commandName.equalsIgnoreCase("BODY"))

     {

       printStatus(222, article.getNumberInGroup() + " " + article.getMessageID()

           + " body");

       printText(article.getBody());

     }

     else if (commandName.equalsIgnoreCase("STAT"))

     {

       printStatus(223, article.getNumberInGroup() + " " + article.getMessageID()

           + " article retrieved - request text separately");

     }

     return true;

   }

 }