/**

 * vim: set ts=4 :

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

 * SourceMod

 * Copyright (C) 2004-2008 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: $Id$

 */

#ifndef _INCLUDE_SOURCEMOD_GAMEDATAFETCHER_H_

#define _INCLUDE_SOURCEMOD_GAMEDATAFETCHER_H_

#include "sourcemod.h"

#include "TextParsers.h"

#include "IThreader.h"

#include "Logger.h"

#include "LibrarySys.h"

#include "ThreadSupport.h"

#include "sm_memtable.h"

#include <sh_string.h>

#include <sh_list.h>

enum UpdateStatus

{ 

	Update_Unknown = 0,				/* Version wasn't recognised or version querying is unsupported */

	Update_Current = 1,				/* Server is running latest version */

	Update_NewBuild = 2,			/* Server is on a svn release and a newer version is available */

	Update_MinorAvailable = 3,		/* Server is on a release and a minor release has superceeded it */

	Update_MajorAvailable = 4,		/* Server is on a release and a major release has superceeded it */

	Update_CriticalAvailable = 5,	/* A critical update has been released (security fixes etc) */

};

class MD5;

class BuildMD5ableBuffer : public ITextListener_SMC

{

public:

	BuildMD5ableBuffer();

	~BuildMD5ableBuffer();

	void ReadSMC_ParseStart();

	SMCResult ReadSMC_KeyValue(const SMCStates *states, const char *key, const char *value);

	SMCResult ReadSMC_NewSection(const SMCStates *states, const char *name);

	void ReadSMC_ParseEnd(bool halted, bool failed);

public:

	MD5 *checksum;

private:

	BaseStringTable *stringTable;

};

struct FileData

{

	SourceHook::String *filename;

	char checksum[33];

};

class FetcherThread : public IThread

{

public:

	FetcherThread();

	~FetcherThread();

public:

	void RunThread(IThreadHandle *pHandle);

	void OnTerminate(IThreadHandle *pHandle, bool cancel);

private:

	int BuildGameDataQuery(char *buffer, int maxlen);

	void ProcessGameDataQuery(int SocketDescriptor);

	int RecvData(int socketDescriptor, char *buffer, int len);

	int SendData(int socketDescriptor, char *buffer, int len);

	int ConnectSocket();

	void HandleUpdateStatus(UpdateStatus status, short version[4]);

public:

	SourceHook::CVector<FileData *> filenames;

	bool needsRestart;

	bool wasSuccess;

private:

	UpdateStatus updateStatus;

	BaseMemTable *memtable;

	short build[4];

};

extern bool g_blockGameDataLoad;

#endif // _INCLUDE_SOURCEMOD_GAMEDATAFETCHER_H_