/*
*
*    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 "maintypes.h"
#include "custom.h"
#include "FileSystem.h"

#define HASHPAK_EXTENSION	".hpk"
#define HASHPAK_VERSION		0x0001

#define MAX_FILE_SIZE		0x20000
#define MAX_FILE_ENTRIES	0x8000

typedef struct hash_pack_queue_s
{
	char *pakname;
	resource_t resource;
	int datasize;
	void *data;
	hash_pack_queue_s *next;
} hash_pack_queue_t;

typedef struct hash_pack_entry_s
{
	resource_t resource;
	int nOffset;
	int nFileLength;
} hash_pack_entry_t;

typedef struct hash_pack_directory_s
{
	int nEntries;
	hash_pack_entry_t *p_rgEntries;
} hash_pack_directory_t;

typedef struct hash_pack_header_s
{
	char szFileStamp[4];
	int version;
	int nDirectoryOffset;
} hash_pack_header_t;

EXTERN_VAR(hash_pack_queue_t*, gp_hpak_queue);
EXTERN_VAR(hash_pack_header_t, hash_pack_header);

// TODO: used only in hashpak
extern hash_pack_directory_t hash_pack_dir;

qboolean HPAK_GetDataPointer(char *pakname, struct resource_s *pResource, unsigned char **pbuffer, int *bufsize);
qboolean HPAK_FindResource(hash_pack_directory_t *pDir, unsigned char *hash, struct resource_s *pResourceEntry);
void HPAK_AddToQueue(char *pakname, struct resource_s *pResource, void *pData, FileHandle_t fpSource);
void HPAK_FlushHostQueue(void);
void HPAK_AddLump(qboolean bUseQueue, char *pakname, struct resource_s *pResource, void *pData, FileHandle_t fpSource);
void HPAK_RemoveLump(char *pakname, struct resource_s *pResource);
qboolean HPAK_ResourceForIndex(char *pakname, int nIndex, struct resource_s *pResource);
qboolean HPAK_ResourceForHash(char *pakname, unsigned char *hash, struct resource_s *pResourceEntry);
void HPAK_List_f(void);
void HPAK_CreatePak(char *pakname, struct resource_s *pResource, void *pData, FileHandle_t fpSource);
void HPAK_Remove_f(void);
void HPAK_Validate_f(void);
void HPAK_Extract_f(void);
void HPAK_Init(void);
NOXREF char *HPAK_GetItem(int item);
void HPAK_CheckSize(char *pakname);
void HPAK_ValidatePak(char *fullpakname);
void HPAK_CheckIntegrity(char *pakname);
