/*
*
*    This program is free software; you can redistribute it and/or modify it
*    under the terms of the GNU General Public License as published by the
*    Free Software Foundation; either version 2 of the License, or (at
*    your option) any later version.
*
*    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, write to the Free Software Foundation,
*    Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*
*    In addition, as a special exception, the author gives permission to
*    link the code of this program with the Half-Life Game Engine ("HL
*    Engine") and Modified Game Libraries ("MODs") developed by Valve,
*    L.L.C ("Valve").  You must obey the GNU General Public License in all
*    respects for all of the code used other than the HL Engine and MODs
*    from Valve.  If you modify this file, you may extend this exception
*    to your version of the file, but you are not obligated to do so.  If
*    you do not wish to do so, delete this exception statement from your
*    version.
*
*/

#pragma once

#include "const.h"
#include "qlimits.h"
#include "bspfile.h"
#include "FileSystem.h"
#include "quakedef.h"
#include "usercmd.h"
#include "info.h"
#include "com_model.h"

#define COM_TOKEN_LEN	1024

// Don't allow overflow
#define SIZEBUF_CHECK_OVERFLOW	0
#define SIZEBUF_ALLOW_OVERFLOW	BIT(0)
#define SIZEBUF_OVERFLOWED		BIT(1)

#define MAX_NUM_ARGVS			50
#define NUM_SAFE_ARGVS			7

#define COM_COPY_CHUNK_SIZE		1024
#define COM_MAX_CMD_LINE		256

typedef struct sizebuf_s
{
	const char *buffername;
	uint16 flags;
	byte *data;
	int maxsize;
	int cursize;
} sizebuf_t;

typedef struct downloadtime_s
{
	qboolean bUsed;
	float fTime;
	int nBytesRemaining;
} downloadtime_t;

typedef struct incomingtransfer_s
{
	qboolean doneregistering;
	int percent;
	qboolean downloadrequested;
	downloadtime_t rgStats[8];
	int nCurStat;
	int nTotalSize;
	int nTotalToTransfer;
	int nRemainingToTransfer;
	float fLastStatusUpdate;
	qboolean custom;
} incomingtransfer_t;

extern char serverinfo[MAX_INFO_STRING];

extern char gpszVersionString[32];
extern char gpszProductString[32];

typedef struct bf_read_s bf_read_t;
typedef struct bf_write_s bf_write_t;

extern bf_read_t bfread;
extern bf_write_t bfwrite;

extern int msg_badread;
extern int msg_readcount;

extern qboolean bigendien;

extern short(*BigShort)(short l);
extern short(*LittleShort)(short l);
extern int(*BigLong)(int l);
extern int(*LittleLong)(int l);
extern float(*BigFloat)(float l);
extern float(*LittleFloat)(float l);

extern int com_argc;
extern char **com_argv;

extern char com_token[COM_TOKEN_LEN];

extern qboolean com_ignorecolons;
extern qboolean s_com_token_unget;
extern char com_clientfallback[MAX_PATH];
extern char com_gamedir[MAX_PATH];
extern char com_cmdline[COM_MAX_CMD_LINE];

extern cache_user_t *loadcache;
extern unsigned char *loadbuf;
extern int loadsize;

int build_number(void);
char *Info_Serverinfo(void);

unsigned char COM_Nibble(char c);
void COM_HexConvert(const char *pszInput, int nInputLength, unsigned char *pOutput);
NOXREF char *COM_BinPrintf(unsigned char *buf, int nLen);
void COM_ExplainDisconnection(qboolean bPrint, char *fmt, ...);
NOXREF void COM_ExtendedExplainDisconnection(qboolean bPrint, char *fmt, ...);

int LongSwap(int l);
short ShortSwap(short l);
short ShortNoSwap(short l);
int LongNoSwap(int l);
float FloatSwap(float f);
float FloatNoSwap(float f);

void MSG_WriteChar(sizebuf_t *sb, int c);
void MSG_WriteByte(sizebuf_t *sb, int c);
void MSG_WriteShort(sizebuf_t *sb, int c);
void MSG_WriteWord(sizebuf_t *sb, int c);
void MSG_WriteLong(sizebuf_t *sb, int c);
void MSG_WriteFloat(sizebuf_t *sb, float f);
void MSG_WriteString(sizebuf_t *sb, const char *s);
void MSG_WriteBuf(sizebuf_t *sb, int iSize, void *buf);
void MSG_WriteAngle(sizebuf_t *sb, float f);
void MSG_WriteHiresAngle(sizebuf_t *sb, float f);
void MSG_WriteUsercmd(sizebuf_t *buf, usercmd_t *to, usercmd_t *from);
void COM_BitOpsInit(void);
void MSG_WriteOneBit(int nValue);
void MSG_StartBitWriting(sizebuf_t *buf);
NOXREF qboolean MSG_IsBitWriting(void);
void MSG_EndBitWriting(sizebuf_t *buf);
void MSG_WriteBits(uint32 data, int numbits);
void MSG_WriteSBits(int data, int numbits);
void MSG_WriteBitString(const char *p);
void MSG_WriteBitData(void *src, int length);
void MSG_WriteBitAngle(float fAngle, int numbits);
float MSG_ReadBitAngle(int numbits);
int MSG_CurrentBit(void);
NOXREF qboolean MSG_IsBitReading(void);
void MSG_StartBitReading(sizebuf_t *buf);
void MSG_EndBitReading(sizebuf_t *buf);
int MSG_ReadOneBit(void);
uint32 MSG_ReadBits(int numbits);
NOXREF uint32 MSG_PeekBits(int numbits);
int MSG_ReadSBits(int numbits);
NOXREF char *MSG_ReadBitString(void);
int MSG_ReadBitData(void *dest, int length);
NOXREF float MSG_ReadBitCoord(void);
void MSG_WriteBitCoord(const float f);
NOXREF void MSG_ReadBitVec3Coord(vec3_t fa);
void MSG_WriteBitVec3Coord(const vec3_t fa);
NOXREF float MSG_ReadCoord(void);
void MSG_WriteCoord(sizebuf_t *sb, const float f);
NOXREF void MSG_ReadVec3Coord(sizebuf_t *sb, vec3_t fa);
NOXREF void MSG_WriteVec3Coord(sizebuf_t *sb, const vec3_t fa);
void MSG_BeginReading(void);
int MSG_ReadChar(void);
int MSG_ReadByte(void);
int MSG_ReadShort(void);
NOXREF int MSG_ReadWord(void);
int MSG_ReadLong(void);
NOXREF float MSG_ReadFloat(void);
int MSG_ReadBuf(int iSize, void *pbuf);
char *MSG_ReadString(void);
char *MSG_ReadStringLine(void);
NOXREF float MSG_ReadAngle(void);
NOXREF float MSG_ReadHiresAngle(void);
void MSG_ReadUsercmd(usercmd_t *to, usercmd_t *from);

void SZ_Alloc(const char *name, sizebuf_t *buf, int startsize);
void SZ_Clear(sizebuf_t *buf);
void *SZ_GetSpace(sizebuf_t *buf, int length);
void SZ_Write(sizebuf_t *buf, const void *data, int length);
void SZ_Print(sizebuf_t *buf, const char *data);

NOXREF char *COM_SkipPath(char *pathname);
void COM_StripExtension(char *in, char *out);
char *COM_FileExtension(char *in);
void COM_FileBase(const char *in, char *out);
void COM_DefaultExtension(char *path, char *extension);
void COM_UngetToken(void);
char *COM_Parse(char *data);
char *COM_ParseLine(char *data);
int COM_TokenWaiting(char *buffer);
int COM_CheckParm(const char *parm);
void COM_InitArgv(int argc, char *argv[]);
void COM_Init(char *basedir);
char *va(char *format, ...);
char *vstr(vec_t *v);
NOXREF int memsearch(unsigned char *start, int count, int search);
NOXREF void COM_WriteFile(char *filename, void *data, int len);
void COM_FixSlashes(char *pname);
void COM_CreatePath(char *path);
NOXREF void COM_CopyFile(char *netpath, char *cachepath);
NOXREF int COM_ExpandFilename(char *filename);
int COM_FileSize(const char *filename);
unsigned char *COM_LoadFile(const char *path, int usehunk, int *pLength);
void COM_FreeFile(void *buffer);
void COM_CopyFileChunk(FileHandle_t dst, FileHandle_t src, int nSize);
NOXREF unsigned char *COM_LoadFileLimit(char *path, int pos, int cbmax, int *pcbread, FileHandle_t *phFile);
unsigned char *COM_LoadHunkFile(char *path);
unsigned char *COM_LoadTempFile(char *path, int *pLength);
void COM_LoadCacheFile(char *path, struct cache_user_s *cu);
NOXREF unsigned char *COM_LoadStackFile(char *path, void *buffer, int bufsize, int *length);
void COM_Shutdown(void);
NOXREF void COM_AddAppDirectory(char *pszBaseDir, const char *appName);
void COM_AddDefaultDir(char *pszDir);
void COM_StripTrailingSlash(char *ppath);
void COM_ParseDirectoryFromCmd(const char *pCmdName, char *pDirName, const char *pDefault);
qboolean COM_SetupDirectories(void);
void COM_CheckPrintMap(dheader_t *header, const char *mapname, qboolean bShowOutdated);
void COM_ListMaps(char *pszSubString);
void COM_Log(char *pszFile, char *fmt, ...);
unsigned char *COM_LoadFileForMe(const char *filename, int *pLength);
int COM_CompareFileTime(char *filename1, char *filename2, int *iCompare);
void COM_GetGameDir(char *szGameDir);
int COM_EntsForPlayerSlots(int nPlayers);
void COM_NormalizeAngles(vec_t *angles);
void COM_Munge(unsigned char *data, int len, int seq);
void COM_UnMunge(unsigned char *data, int len, int seq);
void COM_Munge2(unsigned char *data, int len, int seq);
void COM_UnMunge2(unsigned char *data, int len, int seq);
void COM_Munge3(unsigned char *data, int len, int seq);
NOXREF void COM_UnMunge3(unsigned char *data, int len, int seq);
unsigned int COM_GetApproxWavePlayLength(const char *filepath);