// vim: set ts=4 sw=4 tw=99 noet:
//
// AMX Mod X, based on AMX Mod by Aleksander Naszko ("OLO").
// Copyright (C) The AMX Mod X Development Team.
//
// This software is licensed under the GNU General Public License, version 3 or higher.
// Additional exceptions apply. For full license details, see LICENSE.txt or visit:
//     https://alliedmods.net/amxmodx-license

//
// Counter-Strike Module
//

#ifndef CSTRIKE_UTILS_H
#define CSTRIKE_UTILS_H

bool UTIL_IsPlayer(AMX* amx, edict_t* pPlayer);
void UTIL_TextMsg_Generic(edict_t* pPlayer, const char* message);
void *UTIL_FindAddressFromEntry(const char *entry, bool isHidden = false, const char *library = "mod");
bool UTIL_CheckForPublic(const char *publicname);
char *UTIL_StringToLower(char *str);

#define GETINFOKEYBUFFER	(*g_engfuncs.pfnGetInfoKeyBuffer)
#define	SETCLIENTKEYVALUE	(*g_engfuncs.pfnSetClientKeyValue)
#define GETCLIENTKEYVALUE	(*g_engfuncs.pfnInfoKeyValue)
#define CREATENAMEDENTITY	(*g_engfuncs.pfnCreateNamedEntity)

#define CHECK_ENTITY(x) \
	if (x < 0 || x > gpGlobals->maxEntities) { \
		MF_LogError(amx, AMX_ERR_NATIVE, "Entity out of range (%d)", x); \
		return 0; \
	} else { \
		if (x <= gpGlobals->maxClients) { \
			if (!MF_IsPlayerIngame(x)) { \
				MF_LogError(amx, AMX_ERR_NATIVE, "Invalid player %d (not in-game)", x); \
				return 0; \
			} \
		} else { \
			if (x != 0 && FNullEnt(INDEXENT(x))) { \
				MF_LogError(amx, AMX_ERR_NATIVE, "Invalid entity %d", x); \
				return 0; \
			} \
		} \
	}

#define CHECK_PLAYER(x) \
	if (x < 1 || x > gpGlobals->maxClients) { \
		MF_LogError(amx, AMX_ERR_NATIVE, "Player out of range (%d)", x); \
		return 0; \
	} else { \
		if (!MF_IsPlayerIngame(x) || FNullEnt(MF_GetPlayerEdict(x))) { \
			MF_LogError(amx, AMX_ERR_NATIVE, "Invalid player %d", x); \
			return 0; \
		} \
	}

#define CHECK_NONPLAYER(x) \
	if (x < 1 || x <= gpGlobals->maxClients || x > gpGlobals->maxEntities) { \
		MF_LogError(amx, AMX_ERR_NATIVE, "Non-player entity %d out of range", x); \
		return 0; \
	} else { \
		if (FNullEnt(INDEXENT(x))) { \
			MF_LogError(amx, AMX_ERR_NATIVE, "Invalid non-player entity %d", x); \
			return 0; \
		} \
	}

#define GETEDICT(n) \
	((n >= 1 && n <= gpGlobals->maxClients) ? MF_GetPlayerEdict(n) : INDEXENT(n))


inline edict_t *PrivateToEdict(const void *pdata)
{
	if (!pdata)
	{
		return NULL;
	}

	char *ptr = (char*)pdata;
	ptr += 4;
	entvars_t *pev = *(entvars_t **)ptr;

	if (!pev)
	{
		return NULL;
	}

	return pev->pContainingEntity;
};

inline int PrivateToIndex(const void *pdata)
{
	edict_t *pEntity = PrivateToEdict(pdata);

	if (!pEntity)
	{
		return -1;
	}

	return ENTINDEX(pEntity);
};

#endif // CSTRIKE_UTILS_H