/*
 * InspIRCd -- Internet Relay Chat Daemon
 *
 *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
 *   Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
 *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
 *   Copyright (C) 2006 Craig Edwards <craigedwards@brainbox.cc>
 *
 * This file is part of InspIRCd.  InspIRCd 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, version 2.
 *
 * 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/>.
 */


#include "inspircd.h"
#include "protocol.h"
#include <stdarg.h>

void SnomaskManager::FlushSnotices()
{
	for (int i=0; i < 26; i++)
		masks[i].Flush();
}

void SnomaskManager::EnableSnomask(char letter, const std::string &type)
{
	if (letter >= 'a' && letter <= 'z')
		masks[letter - 'a'].Description = type;
}

void SnomaskManager::WriteToSnoMask(char letter, const std::string &text)
{
	if (letter >= 'a' && letter <= 'z')
		masks[letter - 'a'].SendMessage(text, letter);
	if (letter >= 'A' && letter <= 'Z')
		masks[letter - 'A'].SendMessage(text, letter);
}

void SnomaskManager::WriteGlobalSno(char letter, const std::string& text)
{
	WriteToSnoMask(letter, text);
	letter = toupper(letter);
	ServerInstance->PI->SendSNONotice(std::string(1, letter), text);
}

void SnomaskManager::WriteToSnoMask(char letter, const char* text, ...)
{
	char textbuffer[MAXBUF];
	va_list argsPtr;

	va_start(argsPtr, text);
	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
	va_end(argsPtr);

	this->WriteToSnoMask(letter, std::string(textbuffer));
}

void SnomaskManager::WriteGlobalSno(char letter, const char* text, ...)
{
	char textbuffer[MAXBUF];
	va_list argsPtr;

	va_start(argsPtr, text);
	vsnprintf(textbuffer, MAXBUF, text, argsPtr);
	va_end(argsPtr);

	this->WriteGlobalSno(letter, std::string(textbuffer));
}

SnomaskManager::SnomaskManager()
{
	EnableSnomask('c',"CONNECT");			/* Local connect notices */
	EnableSnomask('q',"QUIT");			/* Local quit notices */
	EnableSnomask('k',"KILL");			/* Kill notices */
	EnableSnomask('l',"LINK");			/* Linking notices */
	EnableSnomask('o',"OPER");			/* Oper up/down notices */
	EnableSnomask('a',"ANNOUNCEMENT");	/* formerly WriteOpers() - generic notices to all opers */
	EnableSnomask('d',"DEBUG");			/* Debug notices */
	EnableSnomask('x',"XLINE");			/* Xline notice (g/z/q/k/e) */
	EnableSnomask('t',"STATS");			/* Local or remote stats request */
	EnableSnomask('f',"FLOOD");			/* Flooding notices */
}

/*************************************************************************************/

void Snomask::SendMessage(const std::string &message, char mysnomask)
{
	/* I thought it better to just add the Config check here instead of adding a whole
		new if to do this job. Since as long as the config returns true every time
		'Count' will never get above 1, and when it does Flush() it wont print the
		stack line. - Shawn */
	if (ServerInstance->Config->NoSnoticeStack || message != LastMessage || mysnomask != LastLetter)
	{
		this->Flush();
		LastMessage = message;
		LastLetter = mysnomask;

		std::string desc = Description;
		if (desc.empty())
			desc = "SNO-" + tolower(mysnomask);
		if (isupper(mysnomask))
			desc = "REMOTE" + desc;
		ModResult MOD_RESULT;
		ServerInstance->Logs->Log("snomask", DEFAULT, "%s: %s", desc.c_str(), message.c_str());

		FIRST_MOD_RESULT(OnSendSnotice, MOD_RESULT, (mysnomask, desc, message));

		LastBlocked = (MOD_RESULT == MOD_RES_DENY);

		if (!LastBlocked)
		{
			/* Only opers can receive snotices, so we iterate the oper list */
			std::list<User*>::iterator i = ServerInstance->Users->all_opers.begin();

			while (i != ServerInstance->Users->all_opers.end())
			{
				User* a = *i;
				if (IS_LOCAL(a) && a->IsModeSet('s') && a->IsNoticeMaskSet(mysnomask) && !a->quitting)
				{
					a->WriteServ("NOTICE %s :*** %s: %s", a->nick.c_str(), desc.c_str(), message.c_str());
				}

				i++;
			}
		}
	}
	Count++;
}

void Snomask::Flush()
{
	if (Count > 1)
	{
		std::string desc = Description;
		if (desc.empty())
			desc = "SNO-" + tolower(LastLetter);
		if (isupper(LastLetter))
			desc = "REMOTE" + desc;
		std::string mesg = "(last message repeated "+ConvToStr(Count)+" times)";

		ServerInstance->Logs->Log("snomask", DEFAULT, "%s: %s", desc.c_str(), mesg.c_str());

		FOREACH_MOD(I_OnSendSnotice, OnSendSnotice(LastLetter, desc, mesg));

		if (!LastBlocked)
		{
			/* Only opers can receive snotices, so we iterate the oper list */
			std::list<User*>::iterator i = ServerInstance->Users->all_opers.begin();

			while (i != ServerInstance->Users->all_opers.end())
			{
				User* a = *i;
				if (IS_LOCAL(a) && a->IsModeSet('s') && a->IsNoticeMaskSet(LastLetter) && !a->quitting)
				{
					a->WriteServ("NOTICE %s :*** %s: %s", a->nick.c_str(), desc.c_str(), mesg.c_str());
				}

				i++;
			}
		}

	}
	LastMessage = "";
	LastBlocked = false;
	Count = 0;
}