/*
 * File    : TrackerStatusItem.java
 * Created : 24 nov. 2003
 * By      : Olivier
 *
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 *
 * 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 2 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 ( see the LICENSE file ).
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
 
package org.gudy.azureus2.ui.swt.views.tableitems.mytorrents;

import java.net.URL;
import java.util.Set;

import org.gudy.azureus2.core3.download.DownloadManager;
import org.gudy.azureus2.core3.torrent.TOTorrent;
import org.gudy.azureus2.core3.torrent.TOTorrentAnnounceURLSet;
import org.gudy.azureus2.core3.util.StringInterner;
import org.gudy.azureus2.ui.swt.views.MyTorrentsView;
import org.gudy.azureus2.ui.swt.views.table.CoreTableColumnSWT;
import org.gudy.azureus2.plugins.download.Download;
import org.gudy.azureus2.plugins.ui.tables.*;

/**
 * @author Olivier
 *
 */
public class TrackerNameItem
       extends CoreTableColumnSWT 
       implements TableCellRefreshListener, TableCellToolTipListener
{
	public static final Class DATASOURCE_TYPE = Download.class;

  public static final String COLUMN_ID = "trackername";

	public TrackerNameItem(String sTableID) {
    super(DATASOURCE_TYPE, COLUMN_ID, ALIGN_LEAD, 120, sTableID);
    setRefreshInterval(5);
  }

	public void fillTableColumnInfo(TableColumnInfo info) {
		info.addCategories(new String[] {
			CAT_TRACKER,
		});
		info.setProficiency(TableColumnInfo.PROFICIENCY_INTERMEDIATE);
	}

  public void refresh(TableCell cell) {
    DownloadManager dm = (DownloadManager)cell.getDataSource();
    String name = "";
    
    if( dm != null && dm.getTorrent() != null ) {
    	TOTorrent torrent = dm.getTorrent();

    	name = getTrackerName(torrent);
    	
    }
        
    if (cell.setText(name) || !cell.isValid()) {
    	TrackerCellUtils.updateColor(cell, dm, false);
    }
  }

	public static String getTrackerName(TOTorrent torrent) {
		String name =  "";

		Set<String> pref_names = MyTorrentsView.preferred_tracker_names;
  	
  	URL	url = null;
  	
  	if ( pref_names != null ){
  		
  		TOTorrentAnnounceURLSet[] sets = torrent.getAnnounceURLGroup().getAnnounceURLSets();
  		
  		if ( sets.length > 0 ){
  			
  			String host = torrent.getAnnounceURL().getHost();
  			
  			if ( pref_names.contains( host )){
  				
  				url = torrent.getAnnounceURL();
  				
  			}else{
  				
  				for ( TOTorrentAnnounceURLSet set: sets ){
  					
  					URL[] urls = set.getAnnounceURLs();
  					
  					for ( URL u: urls ){
  						
  						if ( pref_names.contains( u.getHost())){
  							
  							url = u;
  							
  							break;
  						}
  					}
  					
  					if ( url != null ){
  						
  						break;
  					}
  				}
  			}
  		}
  	}
  	
  	if ( url == null ){
  		
  		url = torrent.getAnnounceURL();
  	}
  	
  	String host = url.getHost();
  	
  	if ( host.endsWith( ".dht" )){
  		
  		name = "dht";
  		
  	}else{
  		
    	String[] parts = host.split( "\\." );

    	int used = 0;
    	for( int i = parts.length-1; i >= 0; i-- ) {
    		if( used > 4 ) break; //don't use more than 4 segments
    		String chunk = parts[ i ];
    		if( used < 2 || chunk.length() < 11 ) {  //use first end two always, but trim out >10 chars (passkeys)
    			if( used == 0 ) name = chunk;
    			else name = chunk + "." + name;
    			used++;
    		}
    		else break;
    	}
  	}
  	
  	if(name.equals(host)){
  		
  		name = host;
  		
  	}else{
  		
  		name = StringInterner.intern(name);
  	}
  	
  	return name;
	}

	public void cellHover(TableCell cell) {
		DownloadManager dm = (DownloadManager) cell.getDataSource();
		cell.setToolTip(TrackerCellUtils.getTooltipText(cell, dm, false));
	}

	public void cellHoverComplete(TableCell cell) {
		cell.setToolTip(null);
	}
}
