/**

 * 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_CHALFLIFE2_H_

#define _INCLUDE_SOURCEMOD_CHALFLIFE2_H_

#include <sh_list.h>

#include <sh_string.h>

#include <sh_tinyhash.h>

#include <sm_trie_tpl.h>

#include "sm_trie.h"

#include "sm_globals.h"

#include "sm_queue.h"

#include <IGameHelpers.h>

#include <KeyValues.h>

#include <server_class.h>

#include <datamap.h>

#include <ihandleentity.h>

#include <tier0/icommandline.h>

#if SOURCE_ENGINE >= SE_PORTAL2

#include <string_t.h>

#endif

class CCommand;

using namespace SourceHook;

using namespace SourceMod;

#define HUD_PRINTTALK		3

#define HUD_PRINTCENTER		4

struct DataTableInfo

{

	ServerClass *sc;

	KTrie<sm_sendprop_info_t> lookup;

};

struct DataMapTrie

{

	DataMapTrie() : trie(NULL) {}

	KTrie<sm_datatable_info_t> *trie;

};

struct DelayedFakeCliCmd

{

	String cmd;

	int client;

	int userid;

};

struct CachedCommandInfo

{

	const CCommand *args;

#if SOURCE_ENGINE <= SE_DARKMESSIAH

	char cmd[300];

#endif

};

struct DelayedKickInfo

{

	int userid;

	int client;

	char buffer[384];

};

// copy from game/shared/entitylist_base.h

class CEntInfo

{

public:

	IHandleEntity	*m_pEntity;

	int				m_SerialNumber;

	CEntInfo		*m_pPrev;

	CEntInfo		*m_pNext;

#if (SOURCE_ENGINE >= SE_PORTAL2) && (SOURCE_ENGINE != SE_DOTA)

	string_t		m_iName;

	string_t		m_iClassName;

#endif

};

class CHalfLife2 : 

	public SMGlobalClass,

	public IGameHelpers

{

public:

	CHalfLife2();

	~CHalfLife2();

public:

	void OnSourceModStartup(bool late);

	void OnSourceModAllInitialized();

	void OnSourceModAllInitialized_Post();

	/*void OnSourceModAllShutdown();*/

public: //IGameHelpers

	SendProp *FindInSendTable(const char *classname, const char *offset);

	bool FindSendPropInfo(const char *classname, const char *offset, sm_sendprop_info_t *info);

	datamap_t *GetDataMap(CBaseEntity *pEntity);

	ServerClass *FindServerClass(const char *classname);

	typedescription_t *FindInDataMap(datamap_t *pMap, const char *offset);

	bool FindDataMapInfo(datamap_t *pMap, const char *offset, sm_datatable_info_t *pDataTable);

	void SetEdictStateChanged(edict_t *pEdict, unsigned short offset);

	bool TextMsg(int client, int dest, const char *msg);

	bool HintTextMsg(int client, const char *msg);

	bool HintTextMsg(cell_t *players, int count, const char *msg);

	bool ShowVGUIMenu(int client, const char *name, KeyValues *data, bool show);

	bool IsLANServer();

	bool KVLoadFromFile(KeyValues *kv, IBaseFileSystem *filesystem, const char *resourceName, const char *pathID = NULL);

	edict_t *EdictOfIndex(int index);

	int IndexOfEdict(edict_t *pEnt);

	edict_t *GetHandleEntity(CBaseHandle &hndl);

	void SetHandleEntity(CBaseHandle &hndl, edict_t *pEnt);

	const char *GetCurrentMap();

	void ServerCommand(const char *buffer);

	CBaseEntity *ReferenceToEntity(cell_t entRef);

	cell_t EntityToReference(CBaseEntity *pEntity);

	cell_t IndexToReference(int entIndex);

	int ReferenceToIndex(cell_t entRef);

	cell_t ReferenceToBCompatRef(cell_t entRef);

	CEntInfo *LookupEntity(int entIndex);

	cell_t EntityToBCompatRef(CBaseEntity *pEntity);

	void *GetGlobalEntityList();

	int GetSendPropOffset(SendProp *prop);

	ICommandLine *GetValveCommandLine();

	const char *GetEntityClassname(edict_t *pEdict);

	const char *GetEntityClassname(CBaseEntity *pEntity);

	bool IsMapValid(const char *map);

public:

	void AddToFakeCliCmdQueue(int client, int userid, const char *cmd);

	void ProcessFakeCliCmdQueue();

public:

	void PushCommandStack(const CCommand *cmd);

	void PopCommandStack();

	const CCommand *PeekCommandStack();

	const char *CurrentCommandName();

	void AddDelayedKick(int client, int userid, const char *msg);

	void ProcessDelayedKicks();

#if !defined METAMOD_PLAPI_VERSION || PLAPI_VERSION < 11

	bool IsOriginalEngine();

#endif

private:

	DataTableInfo *_FindServerClass(const char *classname);

private:

	void InitLogicalEntData();

	void InitCommandLine();

private:

	Trie *m_pClasses;

	List<DataTableInfo *> m_Tables;

	THash<datamap_t *, DataMapTrie> m_Maps;

	int m_MsgTextMsg;

	int m_HinTextMsg;

	int m_SayTextMsg;

	int m_VGUIMenu;

	Queue<DelayedFakeCliCmd *> m_CmdQueue;

	CStack<DelayedFakeCliCmd *> m_FreeCmds;

	CStack<CachedCommandInfo> m_CommandStack;

	Queue<DelayedKickInfo> m_DelayedKicks;

	void *m_pGetCommandLine;

};

extern CHalfLife2 g_HL2;

bool IndexToAThings(cell_t, CBaseEntity **pEntData, edict_t **pEdictData);

#endif //_INCLUDE_SOURCEMOD_CHALFLIFE2_H_