/*       +------------------------------------+
 *       | Inspire Internet Relay Chat Daemon |
 *       +------------------------------------+
 *
 *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
 * See: http://wiki.inspircd.org/Credits
 *
 * This program is free but copyrighted software; see
 *            the file COPYING for details.
 *
 * ---------------------------------------------------
 */

#include "inspircd.h"

/* $ModDesc: Provides the SWHOIS command which allows setting of arbitary WHOIS lines */

/** Handle /SWHOIS
 */
class CommandSwhois : public Command
{
 public:
	StringExtItem swhois;
	CommandSwhois(Module* Creator) : Command(Creator,"SWHOIS", 2,2), swhois("swhois", Creator)
	{
		flags_needed = 'o'; syntax = "<nick> :<swhois>";
		ServerInstance->Extensions.Register(&swhois);
		TRANSLATE3(TR_NICK, TR_TEXT, TR_END);
	}

	CmdResult Handle(const std::vector<std::string> &parameters, User* user)
	{
		User* dest = ServerInstance->FindNick(parameters[0]);

		if (!dest)
		{
			user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel", user->nick.c_str(), parameters[0].c_str());
			return CMD_FAILURE;
		}

		std::string* text = swhois.get(dest);
		if (text)
		{
			// We already had it set...
			if (!ServerInstance->ULine(user->server))
				// Ulines set SWHOISes silently
				ServerInstance->SNO->WriteGlobalSno('a', "%s used SWHOIS to set %s's extra whois from '%s' to '%s'", user->nick.c_str(), dest->nick.c_str(), text->c_str(), parameters[1].c_str());
		}
		else if (!ServerInstance->ULine(user->server))
		{
			// Ulines set SWHOISes silently
			ServerInstance->SNO->WriteGlobalSno('a', "%s used SWHOIS to set %s's extra whois to '%s'", user->nick.c_str(), dest->nick.c_str(), parameters[1].c_str());
		}

		if (parameters[1].empty())
			swhois.unset(dest);
		else
			swhois.set(dest, parameters[1]);

		/* Bug #376 - feature request -
		 * To cut down on the amount of commands services etc have to recognise, this only sends METADATA across the network now
		 * not an actual SWHOIS command. Any SWHOIS command sent from services will be automatically translated to METADATA by this.
		 * Sorry w00t i know this was your fix, but i got bored and wanted to clear down the tracker :)
		 * -- Brain
		 */
		ServerInstance->PI->SendMetaData(dest, "swhois", parameters[1]);

		return CMD_SUCCESS;
	}

};

class ModuleSWhois : public Module
{
	CommandSwhois cmd;

 public:
	ModuleSWhois() : cmd(this)
	{
		ServerInstance->AddCommand(&cmd);
		Implementation eventlist[] = { I_OnWhoisLine, I_OnPostCommand };
		ServerInstance->Modules->Attach(eventlist, this, 2);
	}

	// :kenny.chatspike.net 320 Brain Azhrarn :is getting paid to play games.
	ModResult OnWhoisLine(User* user, User* dest, int &numeric, std::string &text)
	{
		/* We use this and not OnWhois because this triggers for remote, too */
		if (numeric == 312)
		{
			/* Insert our numeric before 312 */
			std::string* swhois = cmd.swhois.get(dest);
			if (swhois)
			{
				ServerInstance->SendWhoisLine(user, dest, 320, "%s %s :%s",user->nick.c_str(), dest->nick.c_str(), swhois->c_str());
			}
		}

		/* Dont block anything */
		return MOD_RES_PASSTHRU;
	}

	void OnPostCommand(const std::string &command, const std::vector<std::string> &params, User *user, CmdResult result, const std::string &original_line)
	{
		if ((command != "OPER") || (result != CMD_SUCCESS))
			return;
		ConfigReader Conf;

		std::string swhois;

		for (int i = 0; i < Conf.Enumerate("oper"); i++)
		{
			std::string name = Conf.ReadValue("oper", "name", i);

			if (name == params[0])
			{
				swhois = Conf.ReadValue("oper", "swhois", i);
				break;
			}
		}

		if (!swhois.length())
		{
			for (int i = 0; i < Conf.Enumerate("type"); i++)
			{
				std::string type = Conf.ReadValue("type", "name", i);

				if (type == user->oper)
				{
					swhois = Conf.ReadValue("type", "swhois", i);
					break;
				}
			}
		}

		if (!swhois.length())
			return;

		cmd.swhois.set(user, swhois);
		ServerInstance->PI->SendMetaData(user, "swhois", swhois);
	}

	~ModuleSWhois()
	{
	}

	Version GetVersion()
	{
		return Version("Provides the SWHOIS command which allows setting of arbitary WHOIS lines", VF_OPTCOMMON | VF_VENDOR, API_VERSION);
	}
};

MODULE_INIT(ModuleSWhois)