/*

 *   SONEWS 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 org.sonews.util;

import org.sonews.daemon.Config;

import org.sonews.daemon.storage.Database;

import org.sonews.daemon.storage.Article;

import java.util.Date;

/**

 * The purger is started in configurable intervals to search

 * for old messages that can be purged.

 * @author Christian Lins

 * @since sonews/0.5.0

 */

public class Purger

{

  private long lifetime;

  public Purger()

  {

    this.lifetime = Config.getInstance().get("sonews.article.lifetime", 30) 

      * 24L * 60L * 60L * 1000L; // in Milliseconds

  }

  /**

   * Loops through all messages and deletes them if their time

   * has come.

   */

  void purge()

    throws Exception

  {

    System.out.println("Purging old messages...");

    for (;;)

    {

      // TODO: Delete articles directly in database

      Article art = null; //Database.getInstance().getOldestArticle();

      if (art == null) // No articles in the database

      {

        break;

      }

/*      if (art.getDate().getTime() < (new Date().getTime() + this.lifetime))

      {

 //       Database.getInstance().delete(art);

        System.out.println("Deleted: " + art);

      }

      else

      {

        break;

      }*/

    }

  }

  public static void main(String[] args)

  {

    try

    {

      Purger purger = new Purger();

      purger.purge();

      System.exit(0);

    }

    catch(Exception ex)

    {

      ex.printStackTrace();

      System.exit(1);

    }

  }

}