/*
 * InspIRCd -- Internet Relay Chat Daemon
 *
 *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
 *   Copyright (C) 2006-2009 Robin Burchell <robin+git@viroteck.net>
 *   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
 *   Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
 *   Copyright (C) 2004-2008 Craig Edwards <craigedwards@brainbox.cc>
 *   Copyright (C) 2007 John Brooks <john.brooks@dereferenced.net>
 *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
 *
 * 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"

/* $ModDesc: Provides channel modes +a and +q */

#define PROTECT_VALUE 40000
#define FOUNDER_VALUE 50000

/** Abstraction of FounderProtectBase for channel mode +q
 */
class ChanFounder : public PrefixModeHandler
{
 public:
	ChanFounder(Module* Creator) : PrefixModeHandler(Creator, "founder", 'q')
	{
		levelrequired = FOUNDER_VALUE;
		fixed_letter = false;
	}

	void setPrefix(int pfx)
	{
		prefix = pfx;
	}

	void setLevel(bool selfmanip)
	{
		levelrequired = selfmanip ? FOUNDER_VALUE : FOUNDER_VALUE + 1;
	}

	unsigned int GetPrefixRank()
	{
		return FOUNDER_VALUE;
	}

	ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding)
	{
		return MODEACTION_ALLOW;
	}

	void DisplayList(User* user, Channel* channel)
	{
		const UserMembList* cl = channel->GetUsers();
		for (UserMembCIter i = cl->begin(); i != cl->end(); ++i)
		{
			if (i->second->hasMode(mode))
			{
				user->WriteServ("386 %s %s %s", user->nick.c_str(), channel->name.c_str(), i->first->nick.c_str());
			}
		}
		user->WriteServ("387 %s %s :End of channel founder list", user->nick.c_str(), channel->name.c_str());
	}
};

/** Abstraction of FounderProtectBase for channel mode +a
 */
class ChanProtect : public PrefixModeHandler
{
 public:
	ChanProtect(Module* Creator) : PrefixModeHandler(Creator, "admin", 'a')
	{
		levelrequired = PROTECT_VALUE;
		fixed_letter = false;
	}

	void setPrefix(int pfx)
	{
		prefix = pfx;
	}

	unsigned int GetPrefixRank()
	{
		return PROTECT_VALUE;
	}

	void setLevel(bool selfmanip)
	{
		levelrequired = selfmanip ? PROTECT_VALUE : PROTECT_VALUE + 1;
	}

	ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding)
	{
		return MODEACTION_ALLOW;
	}

	void DisplayList(User* user, Channel* channel)
	{
		const UserMembList* cl = channel->GetUsers();
		for (UserMembCIter i = cl->begin(); i != cl->end(); ++i)
		{
			if (i->second->hasMode(mode))
			{
				user->WriteServ("388 %s %s %s", user->nick.c_str(), channel->name.c_str(), i->first->nick.c_str());
			}
		}
		user->WriteServ("389 %s %s :End of channel protected user list", user->nick.c_str(), channel->name.c_str());
	}
};

class ModuleChanProtect : public Module
{
	ChanProtect cp;
	ChanFounder cf;
 public:
	ModuleChanProtect() : cp(this), cf(this)
	{
	}

	void init()
	{
		ServerInstance->Logs->Log("m_chanprotect", DEFAULT, "m_chanprotect is deprecated as of 2.1 in favour of m_customprefix, please consider switching");
		ConfigTag* tag = ServerInstance->Config->GetTag("chanprotect");

		std::string qpre = tag->getString("qprefix");
		std::string apre = tag->getString("aprefix");
		cf.setPrefix(qpre.empty() ? 0 : qpre[0]);
		cp.setPrefix(apre.empty() ? 0 : apre[0]);

		ServerInstance->Modules->AddService(cf);
		ServerInstance->Modules->AddService(cp);
	}

	void ReadConfig(ConfigReadStatus&)
	{
		ConfigTag* tag = ServerInstance->Config->GetTag("chanprotect");
		cp.setLevel(tag->getBool("grantadmin", false));
		cf.setLevel(tag->getBool("grantfounder", true));
	}

	Version GetVersion()
	{
		return Version("Founder and Protect modes (+qa)", VF_VENDOR);
	}
};

MODULE_INIT(ModuleChanProtect)