/*
 * 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, 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * http://www.gnu.org/copyleft/gpl.html
 */
package com.l2dot.gameserver.network.clientpackets;

import java.util.logging.Logger;

import com.l2dot.Config;
import com.l2dot.gameserver.network.serverpackets.KeyPacket;


/**
 * This class ...
 *
 * @version $Revision: 1.5.2.8.2.8 $ $Date: 2005/04/02 10:43:04 $
 */
public final class ProtocolVersion extends L2GameClientPacket
{
	private static final String _C__00_PROTOCOLVERSION = "[C] 00 ProtocolVersion";
	static Logger _log = Logger.getLogger(ProtocolVersion.class.getName());

    private int _version;

	@Override
	protected void readImpl()
	{
		_version  = readD();
	}

	@Override
	protected void runImpl()
	{
		// this packet is never encrypted
		if (_version == -2)
		{
            if (Config.DEBUG) _log.info("Ping received");
			// this is just a ping attempt from the new C2 client
            getClient().closeNow();
		}
        else if (_version < Config.MIN_PROTOCOL_REVISION || _version > Config.MAX_PROTOCOL_REVISION)
        {
            _log.info("Client: "+getClient().toString()+" -> Protocol Revision: " + _version + " is invalid. Minimum is "+Config.MIN_PROTOCOL_REVISION+" and Maximum is "+Config.MAX_PROTOCOL_REVISION+" are supported. Closing connection.");
            _log.warning("Wrong Protocol Version "+_version);
            getClient().closeNow();
        }
        else
        {
        	if (Config.DEBUG)
        	{
        		_log.fine("Client Protocol Revision is ok: "+_version);
        	}

        	KeyPacket pk = new KeyPacket(getClient().enableCrypt());
        	getClient().sendPacket(pk);
        }
	}

	/* (non-Javadoc)
	 * @see com.l2dot.gameserver.clientpackets.ClientBasePacket#getType()
	 */
	@Override
	public String getType()
	{
		return _C__00_PROTOCOLVERSION;
	}
}
