/*
 * InspIRCd -- Internet Relay Chat Daemon
 *
 *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
 *   Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
 *
 * 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"

/** Handle /UNLOADMODULE. These command handlers can be reloaded by the core,
 * and handle basic RFC1459 commands. Commands within modules work
 * the same way, however, they can be fully unloaded, where these
 * may not.
 */
class CommandUnloadmodule : public Command
{
 public:
	/** Constructor for unloadmodule.
	 */
	CommandUnloadmodule ( Module* parent) : Command(parent,"UNLOADMODULE",1) { flags_needed = 'o'; syntax = "<modulename>"; }
	/** Handle command.
	 * @param parameters The parameters to the comamnd
	 * @param pcnt The number of parameters passed to teh command
	 * @param user The user issuing the command
	 * @return A value from CmdResult to indicate command success or failure.
	 */
	CmdResult Handle(const std::vector<std::string>& parameters, User *user);
};

CmdResult CommandUnloadmodule::Handle (const std::vector<std::string>& parameters, User *user)
{
	if (!ServerInstance->Config->ConfValue("security")->getBool("allowcoreunload") &&
		InspIRCd::Match(parameters[0], "cmd_*.so", ascii_case_insensitive_map))
	{
		user->WriteNumeric(972, "%s %s :You cannot unload core commands!", user->nick.c_str(), parameters[0].c_str());
		return CMD_FAILURE;
	}

	if (parameters[0] == "cmd_unloadmodule.so" || parameters[0] == "cmd_loadmodule.so")
	{
		user->WriteNumeric(972, "%s %s :You cannot unload module loading commands!", user->nick.c_str(), parameters[0].c_str());
		return CMD_FAILURE;
	}

	Module* m = ServerInstance->Modules->Find(parameters[0]);
	if (m && ServerInstance->Modules->Unload(m))
	{
		ServerInstance->SNO->WriteGlobalSno('a', "MODULE UNLOADED: %s unloaded %s", user->nick.c_str(), parameters[0].c_str());
		user->WriteNumeric(973, "%s %s :Module successfully unloaded.",user->nick.c_str(), parameters[0].c_str());
	}
	else
	{
		user->WriteNumeric(972, "%s %s :%s",user->nick.c_str(), parameters[0].c_str(),
			m ? ServerInstance->Modules->LastError().c_str() : "No such module");
		return CMD_FAILURE;
	}

	return CMD_SUCCESS;
}

COMMAND_INIT(CommandUnloadmodule)