/**

 * vim: set ts=4 sw=4 tw=99 noet:

 * =============================================================================

 * SourceMod

 * Copyright (C) 2004-2010 AlliedModders LLC.  All rights reserved.

 * =============================================================================

 *

 * This program is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, version 3.0, as published by the

 * Free Software Foundation.

 * 

 * 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/>.

 *

 * As a special exception, AlliedModders LLC gives you permission to link the

 * code of this program (as well as its derivative works) to "Half-Life 2," the

 * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software

 * by the Valve Corporation.  You must obey the GNU General Public License in

 * all respects for all other code used.  Additionally, AlliedModders LLC grants

 * this exception to all derivative works.  AlliedModders LLC defines further

 * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),

 * or <http://www.sourcemod.net/license.php>.

 *

 * Version: $Id$

 */

#include <stdio.h>

#include <assert.h>

#include "sourcemod.h"

#include "sourcemm_api.h"

#include "sm_globals.h"

#include "sm_autonatives.h"

#include "logic/intercom.h"

#include "LibrarySys.h"

#include "sm_stringutil.h"

#include "Logger.h"

#include "sm_srvcmds.h"

#include "TimerSys.h"

#include "logic_bridge.h"

#include "PlayerManager.h"

#include "AdminCache.h"

#include "HalfLife2.h"

#include "CoreConfig.h"

#include "IDBDriver.h"

#if SOURCE_ENGINE == SE_DOTA

#include "convar_sm_dota.h"

#elif SOURCE_ENGINE >= SE_ALIENSWARM

#include "convar_sm_swarm.h"

#elif SOURCE_ENGINE >= SE_LEFT4DEAD

#include "convar_sm_l4d.h"

#elif SOURCE_ENGINE >= SE_ORANGEBOX

#include "convar_sm_ob.h"

#else

#include "convar_sm.h"

#endif

#if defined _WIN32

	#define MATCHMAKINGDS_SUFFIX	""

	#define MATCHMAKINGDS_EXT	"dll"

#elif defined __APPLE__

	#define MATCHMAKINGDS_SUFFIX	""

	#define MATCHMAKINGDS_EXT	"dylib"

#elif defined __linux__

#if SOURCE_ENGINE < SE_LEFT4DEAD2

	#define MATCHMAKINGDS_SUFFIX	"_i486"

#else

	#define MATCHMAKINGDS_SUFFIX	""

#endif

	#define MATCHMAKINGDS_EXT	"so"

#endif

static ILibrary *g_pLogic = NULL;

static LogicInitFunction logic_init_fn;

IThreader *g_pThreader;

ITextParsers *textparsers;

sm_logic_t logicore;

ITranslator *translator;

IScriptManager *scripts;

IShareSys *sharesys;

IExtensionSys *extsys;

IHandleSys *handlesys;

IForwardManager *forwardsys;

class VEngineServer_Logic : public IVEngineServer_Logic

{

public:

	virtual bool IsMapValid(const char *map)

	{

		return !!engine->IsMapValid(map);

	}

	virtual void ServerCommand(const char *cmd)

	{

		engine->ServerCommand(cmd);

	}

};

static VEngineServer_Logic logic_engine;

class VFileSystem_Logic : public IFileSystem_Logic

{

public:

	const char *FindFirstEx(const char *pWildCard, const char *pPathID, FileFindHandle_t *pHandle)

	{

		return filesystem->FindFirstEx(pWildCard, pPathID, pHandle);

	}

	const char *FindNext(FileFindHandle_t handle)

	{

		return filesystem->FindNext(handle);

	}

	void FindClose(FileFindHandle_t handle)

	{

		filesystem->FindClose(handle);

	}

	FileHandle_t Open(const char *pFileName, const char *pOptions, const char *pathID = 0)

	{

		return filesystem->Open(pFileName, pOptions, pathID);

	}

	void Close(FileHandle_t file)

	{

		filesystem->Close(file);

	}

	char *ReadLine(char *pOutput, int maxChars, FileHandle_t file)

	{

		return filesystem->ReadLine(pOutput, maxChars, file);

	}

	bool EndOfFile(FileHandle_t file)

	{

		return filesystem->EndOfFile(file);

	}

	bool FileExists(const char *pFileName, const char *pPathID = 0)

	{

		return filesystem->FileExists(pFileName, pPathID);

	}

	unsigned int Size(const char *pFileName, const char *pPathID = 0)

	{

		return filesystem->Size(pFileName, pPathID);

	}

};

static VFileSystem_Logic logic_filesystem;

static ConVar *find_convar(const char *name)

{

	return icvar->FindVar(name);

}

static void log_error(const char *fmt, ...)

{

	va_list ap;

	va_start(ap, fmt);

	g_Logger.LogErrorEx(fmt, ap);

	va_end(ap);

}

static void log_fatal(const char *fmt, ...)

{

	va_list ap;

	va_start(ap, fmt);

	g_Logger.LogFatalEx(fmt, ap);

	va_end(ap);

}

static void log_message(const char *fmt, ...)

{

	va_list ap;

	va_start(ap, fmt);

	g_Logger.LogMessageEx(fmt, ap);

	va_end(ap);

}

static void log_to_file(FILE *fp, const char *fmt, ...)

{

	va_list ap;

	va_start(ap, fmt);

	g_Logger.LogToOpenFileEx(fp, fmt, ap);

	va_end(ap);

}

static void log_to_game(const char *message)

{

	Engine_LogPrintWrapper(message);

}

static const char *get_cvar_string(ConVar* cvar)

{

	return cvar->GetString();

}

static bool get_game_name(char *buffer, size_t maxlength)

{

	KeyValues *pGameInfo = new KeyValues("GameInfo");

	if (g_HL2.KVLoadFromFile(pGameInfo, basefilesystem, "gameinfo.txt"))

	{

		const char *str;

		if ((str = pGameInfo->GetString("game", NULL)) != NULL)

		{

			strncopy(buffer, str, maxlength);

			pGameInfo->deleteThis();

			return true;

		}

	}

	pGameInfo->deleteThis();

	return false;

}

static const char *get_game_description()

{

	return SERVER_CALL(GetGameDescription)();

}

static const char *get_source_engine_name()

{

#if !defined SOURCE_ENGINE

# error "Unknown engine type"

#endif

#if SOURCE_ENGINE == SE_EPISODEONE

	return "original";

#elif SOURCE_ENGINE == SE_DARKMESSIAH

	return "darkmessiah";

#elif SOURCE_ENGINE == SE_ORANGEBOX

	return "orangebox";

#elif SOURCE_ENGINE == SE_BLOODYGOODTIME

	return "bloodygoodtime";

#elif SOURCE_ENGINE == SE_EYE

	return "eye";

#elif SOURCE_ENGINE == SE_CSS

	return "css";

#elif SOURCE_ENGINE == SE_HL2DM

	return "hl2dm";

#elif SOURCE_ENGINE == SE_DODS

	return "dods";

#elif SOURCE_ENGINE == SE_SDK2013

	return "sdk2013";

#elif SOURCE_ENGINE == SE_TF2

	return "tf2";

#elif SOURCE_ENGINE == SE_LEFT4DEAD

	return "left4dead";

#elif SOURCE_ENGINE == SE_NUCLEARDAWN

	return "nucleardawn";

#elif SOURCE_ENGINE == SE_LEFT4DEAD2

	return "left4dead2";

#elif SOURCE_ENGINE == SE_ALIENSWARM

	return "alienswarm";

#elif SOURCE_ENGINE == SE_PORTAL2

	return "portal2";

#elif SOURCE_ENGINE == SE_BLADE

	return "blade";

#elif SOURCE_ENGINE == SE_INSURGENCY

	return "insurgency";

#elif SOURCE_ENGINE == SE_CSGO

	return "csgo";

#elif SOURCE_ENGINE == SE_DOTA

	return "dota";

#endif

}

static bool symbols_are_hidden()

{

#if (SOURCE_ENGINE == SE_CSS)            \

	|| (SOURCE_ENGINE == SE_HL2DM)       \

	|| (SOURCE_ENGINE == SE_DODS)        \

	|| (SOURCE_ENGINE == SE_SDK2013)     \

	|| (SOURCE_ENGINE == SE_TF2)         \

	|| (SOURCE_ENGINE == SE_LEFT4DEAD)   \

	|| (SOURCE_ENGINE == SE_NUCLEARDAWN) \

	|| (SOURCE_ENGINE == SE_LEFT4DEAD2)  \

	|| (SOURCE_ENGINE == SE_INSURGENCY)  \

	|| (SOURCE_ENGINE == SE_BLADE)       \

	|| (SOURCE_ENGINE == SE_CSGO)        \

	|| (SOURCE_ENGINE == SE_DOTA)

	return true;

#else

	return false;

#endif

}

static const char* get_core_config_value(const char* key)

{

	return g_CoreConfig.GetCoreConfigValue(key);

}

static bool is_map_loading()

{

	return g_SourceMod.IsMapLoading();

}

static bool is_map_running()

{

	return g_SourceMod.IsMapRunning();

}

static DatabaseInfo keyvalues_to_dbinfo(KeyValues *kv)

{

	DatabaseInfo info;

	info.database = kv->GetString("database", "");

	info.driver = kv->GetString("driver", "default");

	info.host = kv->GetString("host", "");

	info.maxTimeout = kv->GetInt("timeout", 0);

	info.pass = kv->GetString("pass", "");

	info.port = kv->GetInt("port", 0);

	info.user = kv->GetString("user", "");

	return info;

}

int read_cmd_argc(const CCommand &args)

{

	return args.ArgC();

}

static const char *read_cmd_arg(const CCommand &args, int arg)

{

	return args.Arg(arg);

}

static int load_mms_plugin(const char *file, bool *ok, char *error, size_t maxlength)

{

	bool ignore_already;

	PluginId id = g_pMMPlugins->Load(file, g_PLID, ignore_already, error, maxlength);

	Pl_Status status;

#ifndef METAMOD_PLAPI_VERSION

	const char *filep;

	PluginId source;

#endif

	if (!id || (

#ifndef METAMOD_PLAPI_VERSION

		g_pMMPlugins->Query(id, filep, status, source)

#else

		g_pMMPlugins->Query(id, NULL, &status, NULL)

#endif

		&& status < Pl_Paused))

	{

		*ok = false;

	}

	else

	{

		*ok = true;

	}

	return id;

}

static void unload_mms_plugin(int id)

{

	char ignore[255];

	g_pMMPlugins->Unload(id, true, ignore, sizeof(ignore));

}

void do_global_plugin_loads()

{

	g_SourceMod.DoGlobalPluginLoads();

}

#if defined METAMOD_PLAPI_VERSION

#if SOURCE_ENGINE == SE_LEFT4DEAD

#define GAMEFIX "2.l4d"

#elif SOURCE_ENGINE == SE_LEFT4DEAD2

#define GAMEFIX "2.l4d2"

#elif SOURCE_ENGINE == SE_ALIENSWARM

#define GAMEFIX "2.swarm"

#elif SOURCE_ENGINE == SE_ORANGEBOX

#define GAMEFIX "2.ep2"

#elif SOURCE_ENGINE == SE_BLOODYGOODTIME

#define GAMEFIX "2.bgt"

#elif SOURCE_ENGINE == SE_EYE

#define GAMEFIX "2.eye"

#elif SOURCE_ENGINE == SE_CSS

#define GAMEFIX "2.css"

#elif SOURCE_ENGINE == SE_HL2DM

#define GAMEFIX "2.hl2dm"

#elif SOURCE_ENGINE == SE_DODS

#define GAMEFIX "2.dods"

#elif SOURCE_ENGINE == SE_SDK2013

#define GAMEFIX "2.sdk2013"

#elif SOURCE_ENGINE == SE_TF2

#define GAMEFIX "2.tf2"

#elif SOURCE_ENGINE == SE_DARKMESSIAH

#define GAMEFIX "2.darkm"

#elif SOURCE_ENGINE == SE_PORTAL2

#define GAMEFIX "2.portal2"

#elif SOURCE_ENGINE == SE_BLADE

#define GAMEFIX "2.blade"

#elif SOURCE_ENGINE == SE_INSURGENCY

#define GAMEFIX "2.insurgency"

#elif SOURCE_ENGINE == SE_CSGO

#define GAMEFIX "2.csgo"

#elif SOURCE_ENGINE == SE_DOTA

#define GAMEFIX "2.dota"

#else

#define GAMEFIX "2.ep1"

#endif //(SOURCE_ENGINE == SE_LEFT4DEAD) || (SOURCE_ENGINE == SE_LEFT4DEAD2)

#else  //METAMOD_PLAPI_VERSION

#define GAMEFIX "1.ep1"

#endif //METAMOD_PLAPI_VERSION

static ServerGlobals serverGlobals;

static sm_core_t core_bridge =

{

	/* Objects */

	&g_SourceMod,

	&g_LibSys,

	reinterpret_cast<IVEngineServer*>(&logic_engine),

	reinterpret_cast<IFileSystem*>(&logic_filesystem),

	&g_RootMenu,

	&g_Timers,

	&g_Players,

	&g_Admins,

	&g_HL2,

	&g_pSourcePawn,

	&g_pSourcePawn2,

	/* Functions */

	find_convar,

	strncopy,

	UTIL_TrimWhitespace,

	log_error,

	log_fatal,

	log_message,

	log_to_file,

	log_to_game,

	get_cvar_string,

	UTIL_Format,

	UTIL_FormatArgs,

	gnprintf,

	atcprintf,

	get_game_name,

	get_game_description,

	get_source_engine_name,

	symbols_are_hidden,

	get_core_config_value,

	is_map_loading,

	is_map_running,

	read_cmd_argc,

	read_cmd_arg,

	load_mms_plugin,

	unload_mms_plugin,

	do_global_plugin_loads,

	SM_AreConfigsExecuted,

	SM_ExecuteForPlugin,

	keyvalues_to_dbinfo,

	GAMEFIX,

	&serverGlobals

};

void InitLogicBridge()

{

	serverGlobals.universalTime = g_pUniversalTime;

	serverGlobals.frametime = &gpGlobals->frametime;

	serverGlobals.interval_per_tick = &gpGlobals->interval_per_tick;

	core_bridge.engineFactory = (void *)g_SMAPI->GetEngineFactory(false);

	core_bridge.serverFactory = (void *)g_SMAPI->GetServerFactory(false);

	core_bridge.listeners = SMGlobalClass::head;

	ILibrary *mmlib;

	char path[PLATFORM_MAX_PATH];

	g_LibSys.PathFormat(path, sizeof(path), "%s/bin/matchmaking_ds%s.%s", g_SMAPI->GetBaseDir(), MATCHMAKINGDS_SUFFIX, MATCHMAKINGDS_EXT);

	if ((mmlib = g_LibSys.OpenLibrary(path, NULL, 0)))

	{

		core_bridge.matchmakingDSFactory = mmlib->GetSymbolAddress("CreateInterface");

		mmlib->CloseLibrary();

	}

	logic_init_fn(&core_bridge, &logicore);

	/* Add SMGlobalClass instances */

	SMGlobalClass* glob = SMGlobalClass::head;

	while (glob->m_pGlobalClassNext != NULL)

	{

		glob = glob->m_pGlobalClassNext;

	}

	assert(glob->m_pGlobalClassNext == NULL);

	glob->m_pGlobalClassNext = logicore.head;

	g_pThreader = logicore.threader;

	g_pSourcePawn2->SetProfiler(logicore.profiler);

	translator = logicore.translator;

	scripts = logicore.scripts;

	sharesys = logicore.sharesys;

	extsys = logicore.extsys;

	g_pCoreIdent = logicore.core_ident;

	handlesys = logicore.handlesys;

	forwardsys = logicore.forwardsys;

}

bool StartLogicBridge(char *error, size_t maxlength)

{

	char file[PLATFORM_MAX_PATH];

	/* Now it's time to load the logic binary */

	g_SMAPI->PathFormat(file,

		sizeof(file),

		"%s/bin/sourcemod.logic." PLATFORM_LIB_EXT,

		g_SourceMod.GetSourceModPath());

	char myerror[255];

	g_pLogic = g_LibSys.OpenLibrary(file, myerror, sizeof(myerror));

	if (!g_pLogic)

	{

		if (error && maxlength)

		{

			UTIL_Format(error, maxlength, "failed to load %s: %s", file, myerror);

		}

		return false;

	}

	LogicLoadFunction llf = (LogicLoadFunction)g_pLogic->GetSymbolAddress("logic_load");

	if (llf == NULL)

	{

		g_pLogic->CloseLibrary();

		if (error && maxlength)

		{

			UTIL_Format(error, maxlength, "could not find logic_load function");

		}

		return false;

	}

	GetITextParsers getitxt = (GetITextParsers)g_pLogic->GetSymbolAddress("get_textparsers");

	textparsers = getitxt();

	logic_init_fn = llf(SM_LOGIC_MAGIC);

	return true;

}

void ShutdownLogicBridge()

{

	g_pLogic->CloseLibrary();

}