/*
 * 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.l2jserver.gameserver.network.clientpackets;

import java.util.logging.Level;
import java.util.logging.LogRecord;
import java.util.logging.Logger;

import com.l2jserver.Config;
import com.l2jserver.gameserver.handler.ChatHandler;
import com.l2jserver.gameserver.handler.IChatHandler;
import com.l2jserver.gameserver.model.L2ItemInstance;
import com.l2jserver.gameserver.model.L2Object;
import com.l2jserver.gameserver.model.L2World;
import com.l2jserver.gameserver.model.actor.instance.L2PcInstance;
import com.l2jserver.gameserver.network.SystemMessageId;
import com.l2jserver.gameserver.network.serverpackets.SystemMessage;
import com.l2jserver.gameserver.util.Util;


/**
 * This class ...
 *
 * @version $Revision: 1.16.2.12.2.7 $ $Date: 2005/04/11 10:06:11 $
 */
public final class Say2 extends L2GameClientPacket
{
	private static final String _C__38_SAY2 = "[C] 38 Say2";
	private static Logger _log = Logger.getLogger(Say2.class.getName());
	private static Logger _logChat = Logger.getLogger("chat");
	
	public final static int ALL = 0;
	public final static int SHOUT = 1; //!
	public final static int TELL = 2;
	public final static int PARTY = 3; //#
	public final static int CLAN = 4;  //@
	public final static int GM = 5;
	public final static int PETITION_PLAYER = 6; // used for petition
	public final static int PETITION_GM = 7; //* used for petition
	public final static int TRADE = 8; //+
	public final static int ALLIANCE = 9; //$
	public final static int ANNOUNCEMENT = 10;
	public final static int CUSTOM = 11;
	public final static int L2FRIEND = 12;
	public final static int MSNCHAT = 13;
	public final static int PARTYMATCH_ROOM = 14;
	public final static int PARTYROOM_COMMANDER = 15; //(Yellow)
	public final static int PARTYROOM_ALL = 16; //(Red)
	public final static int HERO_VOICE = 17;
	public final static int CRITICAL_ANNOUNCE = 18;
	public final static int SCREEN_ANNOUNCE = 19;
	public final static int BATTLEFIELD = 20;
	public final static int MPCC_ROOM = 21;
	
	private final static String[] CHAT_NAMES =
	{
		"ALL",
		"SHOUT",
		"TELL",
		"PARTY",
		"CLAN",
		"GM",
		"PETITION_PLAYER",
		"PETITION_GM",
		"TRADE",
		"ALLIANCE",
		"ANNOUNCEMENT", //10
		"CUSTOM",
		"L2FRIEND",
		"MSNCHAT",
		"PARTYMATCH_ROOM",
		"PARTYROOM_COMMANDER",
		"PARTYROOM_ALL",
		"HERO_VOICE",
		"CRITICAL_ANNOUNCE",
		"SCREEN_ANNOUNCE",
		"BATTLEFIELD",
		"MPCC_ROOM"
	};
	
	private static final String[] WALKER_COMMAND_LIST = { "USESKILL", "USEITEM", "BUYITEM", "SELLITEM", "SAVEITEM", "LOADITEM", "MSG", "SET", "DELAY", "LABEL", "JMP", "CALL",
		"RETURN", "MOVETO", "NPCSEL", "NPCDLG", "DLGSEL", "CHARSTATUS", "POSOUTRANGE", "POSINRANGE", "GOHOME", "SAY", "EXIT", "PAUSE", "STRINDLG", "STRNOTINDLG", "CHANGEWAITTYPE",
		"FORCEATTACK", "ISMEMBER", "REQUESTJOINPARTY", "REQUESTOUTPARTY", "QUITPARTY", "MEMBERSTATUS", "CHARBUFFS", "ITEMCOUNT", "FOLLOWTELEPORT" };
	
	private String _text;
	private int _type;
	private String _target;
	
	@Override
	protected void readImpl()
	{
		_text = readS();
		_type = readD();
		_target = (_type == TELL) ? readS() : null;
	}
	
	@Override
	protected void runImpl()
	{
		if (Config.DEBUG)
			_log.info("Say2: Msg Type = '" + _type + "' Text = '" + _text + "'.");

		L2PcInstance activeChar = getClient().getActiveChar();
		if (activeChar == null)
			return;
		
		if (_type < 0 || _type >= CHAT_NAMES.length)
		{
			_log.warning("Say2: Invalid type: " +_type + " Player : " + activeChar.getName() + " text: " + String.valueOf(_text));
			return;
		}
		
		if (_text.isEmpty())
		{
			_log.warning(activeChar.getName() + ": sending empty text. Possible packet hack!");
			return;
		}
		
		// Even though the client can handle more characters than it's current limit allows, an overflow (critical error) happens if you pass a huge (1000+) message.
		// April 27, 2009 - Verified on Gracia P2 & Final official client as 105
		if (_text.length() > 105 && !activeChar.isGM())
		{
			activeChar.sendPacket(new SystemMessage(SystemMessageId.DONT_SPAM));
			return;
		}
		
		if (Config.L2WALKER_PROTECTION && _type == TELL && checkBot(_text))
		{
			Util.handleIllegalPlayerAction(activeChar, "Client Emulator Detect: Player " + activeChar.getName() + " using l2walker.", Config.DEFAULT_PUNISH);
			return;
		}

		if (activeChar.isCursedWeaponEquipped() && (_type == TRADE || _type == SHOUT))
		{
			activeChar.sendPacket(new SystemMessage(SystemMessageId.SHOUT_AND_TRADE_CHAT_CANNOT_BE_USED_WHILE_POSSESSING_CURSED_WEAPON));
			return;
		}

		if (activeChar.isChatBanned())
		{
			if (_type == ALL || _type == SHOUT || _type == TRADE || _type == HERO_VOICE)
			{
				activeChar.sendPacket(new SystemMessage(SystemMessageId.CHATTING_IS_CURRENTLY_PROHIBITED));
				return;
			}
		}

		if (activeChar.isInJail() && Config.JAIL_DISABLE_CHAT)
		{
			if (_type == TELL || _type == SHOUT || _type == TRADE || _type == HERO_VOICE)
			{
				activeChar.sendMessage("You can not chat with players outside of the jail.");
				return;
			}
		}

		if (_type == PETITION_PLAYER && activeChar.isGM())
			_type = PETITION_GM;

		if (Config.LOG_CHAT)
		{
			LogRecord record = new LogRecord(Level.INFO, _text);
			record.setLoggerName("chat");

			if (_type == TELL)
				record.setParameters(new Object[]{CHAT_NAMES[_type], "[" + activeChar.getName() + " to "+_target+"]"});
			else
				record.setParameters(new Object[]{CHAT_NAMES[_type], "[" + activeChar.getName() + "]"});

			_logChat.log(record);
		}
		

		if (_text.indexOf(8) >= 0)
			if (!parseAndPublishItem(activeChar))
				return;
		
		// Say Filter implementation
		if (Config.USE_SAY_FILTER)
			checkText();

		IChatHandler handler = ChatHandler.getInstance().getChatHandler(_type);
		if (handler != null)
			handler.handleChat(_type, activeChar, _target, _text);
	}
	
	private boolean checkBot(String text)
	{
		for (String botCommand : WALKER_COMMAND_LIST)
		{
			if (text.startsWith(botCommand))
				return true;
		}
		return false;
	}
	
	private void checkText()
	{
		String filteredText = _text;
		for (String pattern : Config.FILTER_LIST)
			filteredText = filteredText.replaceAll("(?i)" + pattern, Config.CHAT_FILTER_CHARS);
		_text = filteredText;
	}
	
	private boolean parseAndPublishItem(L2PcInstance owner)
	{
		int pos1 = -1;
		while ((pos1 = _text.indexOf(8, pos1)) > -1)
		{
			int pos = _text.indexOf("ID=", pos1);
			if (pos == -1)
				return false;
			StringBuilder result = new StringBuilder(9);
			pos += 3;
			while (Character.isDigit(_text.charAt(pos)))
				result.append(_text.charAt(pos++));
			int id = Integer.parseInt(result.toString());
			L2Object item = L2World.getInstance().findObject(id);
			if (item instanceof L2ItemInstance)
			{
				if (owner.getInventory().getItemByObjectId(id) == null)
				{
					_log.info(getClient() + " trying publish item which doesnt own! ID:" + id);
					return false;
				}
				((L2ItemInstance) item).publish();
			}
			else
			{
				_log.info(getClient() + " trying publish object which is not item! ID:" + id);
				return false;
			}
			pos1 = _text.indexOf(8, pos) + 1;
			if (pos1 == 0) // missing ending tag
			{
				_log.info(getClient() + " sent invalid publish item msg! ID:" + id);
				return false;
			}
		}
		return true;
	}

	/* (non-Javadoc)
	 * @see com.l2jserver.gameserver.clientpackets.ClientBasePacket#getType()
	 */
	@Override
	public String getType()
	{
		return _C__38_SAY2;
	}
}