/**

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

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

 * 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_CGAMECONFIGS_H_

#define _INCLUDE_SOURCEMOD_CGAMECONFIGS_H_

#include "common_logic.h"

#include <IGameConfigs.h>

#include <ITextParsers.h>

#include <am-refcounting.h>

#include <sm_stringhashmap.h>

#include <sm_namehashset.h>

using namespace SourceMod;

using namespace SourceHook;

class SendProp;

class CGameConfig : 

	public ITextListener_SMC,

	public IGameConfig,

	public ke::Refcounted<CGameConfig>

{

	friend class GameConfigManager;

public:

	CGameConfig(const char *file, const char *engine = NULL);

	~CGameConfig();

public:

	bool Reparse(char *error, size_t maxlength);

	bool EnterFile(const char *file, char *error, size_t maxlength);

	void SetBaseEngine(const char *engine);

	void SetParseEngine(const char *engine);

public: //ITextListener_SMC

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

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

	SMCResult ReadSMC_LeavingSection(const SMCStates *states);

public: //IGameConfig

	const char *GetKeyValue(const char *key);

	bool GetOffset(const char *key, int *value);

	SendProp *GetSendProp(const char *key);

	bool GetMemSig(const char *key, void **addr);

	bool GetAddress(const char *key, void **addr);

public: //NameHashSet

	static inline bool matches(const char *key, const CGameConfig *value)

	{

		return strcmp(key, value->m_File) == 0;

	}

private:

	char m_File[PLATFORM_MAX_PATH];

	char m_CurFile[PLATFORM_MAX_PATH];

	StringHashMap<int> m_Offsets;

	StringHashMap<SendProp *> m_Props;

	StringHashMap<ke::AString> m_Keys;

	StringHashMap<void *> m_Sigs;

	/* Parse states */

	int m_ParseState;

	unsigned int m_IgnoreLevel;

	char m_Class[64];

	char m_Prop[64];

	char m_offset[64];

	char m_Game[256];

	bool bShouldBeReadingDefault;

	bool had_game;

	bool matched_game;

	bool had_engine;

	bool matched_engine;

	bool matched_platform;

	/* Custom Sections */

	unsigned int m_CustomLevel;

	ITextListener_SMC *m_CustomHandler;

	/* Support for reading Addresses */

	struct AddressConf

	{

		char signatureName[64];

		int readCount;

		int read[8];

		AddressConf(char *sigName, unsigned sigLength, unsigned readCount, int *read);

		AddressConf() {}

	};

	char m_Address[64];

	char m_AddressSignature[64];

	int m_AddressReadCount;

	int m_AddressRead[8];

	StringHashMap<AddressConf> m_Addresses;

	const char *m_pEngine;

	const char *m_pBaseEngine;

};

class GameConfigManager : 

	public IGameConfigManager,

	public SMGlobalClass

{

public:

	GameConfigManager();

	~GameConfigManager();

public: //IGameConfigManager

	bool LoadGameConfigFile(const char *file, IGameConfig **pConfig, char *error, size_t maxlength);

	void CloseGameConfigFile(IGameConfig *cfg);

	IGameConfig *ReadHandle(Handle_t hndl,

		IdentityToken_t *ident,

		HandleError *err);

	void AddUserConfigHook(const char *sectionname, ITextListener_SMC *listener);

	void RemoveUserConfigHook(const char *sectionname, ITextListener_SMC *listener);

	void AcquireLock();

	void ReleaseLock();

public: //SMGlobalClass

	void OnSourceModStartup(bool late);

	void OnSourceModAllInitialized();

	void OnSourceModAllShutdown();

public:

	void RemoveCachedConfig(CGameConfig *config);

private:

	NameHashSet<CGameConfig *> m_Lookup;

public:

	StringHashMap<ITextListener_SMC *> m_customHandlers;

};

extern GameConfigManager g_GameConfigs;

extern IGameConfig *g_pGameConf;

#endif //_INCLUDE_SOURCEMOD_CGAMECONFIGS_H_