#pragma once
#include <stdio.h>
#include <memory.h>
#include <cstdint>

#include "Engine/Graphics/Texture.h"

class Sprite;


#define MAX_LOD_TEXTURES 1000
#define MAX_LOD_SPRITES  1500

/*  354 */
enum TEXTURE_TYPE
{
  TEXTURE_DEFAULT = 0,
  TEXTURE_24BIT_PALETTE = 0x1,
  TEXTURE_16BIT_PALETTE = 0x2,
};

namespace LOD
{
  #pragma pack(push, 1)
  struct FileHeader
  {
    //----- (004617B6) --------------------------------------------------------
    inline FileHeader()
    {
      memset(pSignature, 0, 4);
	  memset(LodVersion, 0, 80);
      memset(LodDescription, 0, 80);
      memset(array_0000B0, 0, 28);
      memset(array_0000CC, 0, 52);

      pSignature[0] = 0;
      LodVersion[0] = 0;
      LodDescription[0] = 0;
      LODSize = 0;
      dword_0000A8 = 0;
      uNumIndices = 0;
    }

    char pSignature[4];
    char LodVersion[80];
    //char field_C[32];
    //char field_2C[40];
    char LodDescription[80];
    int LODSize;
    int dword_0000A8;
    unsigned int uNumIndices;
    char array_0000B0[28];
    char array_0000CC[52];
  };
  #pragma pack(pop)


  #pragma pack(push, 1)
  struct Directory
  {
    Directory();

    char pFilename[15];
    char field_F;
    unsigned int uOfsetFromSubindicesStart;
    unsigned int uDataSize;
    int dword_000018;
    unsigned __int16 uNumSubIndices;
    __int16 word_00001E;
  };
  #pragma pack(pop)


  #pragma pack(push, 1)
  struct File
  {
    File();
    virtual ~File();
    void *LoadRaw(const char *pContainer, int a3);
    FILE *FindContainer(const char *pContainerName, bool bLinearSearch);
    bool DoesContainerExist(const char *pContainer);
    int CalcIndexFast(int startIndex, int maxIndex, const char *pContainerName);
    bool LoadHeader(const char *pFilename, bool bWriting);
    int LoadSubIndices(const char *pContainer);
    void AllocSubIndicesAndIO(unsigned int uNumSubIndices, unsigned int uBufferSize);
    void FreeSubIndexAndIO();
    bool AppendDirectory(LOD::Directory *pDir, const void *pData);
    void ResetSubIndices();
    void Close();

    FILE *pFile;
    char pLODName[256];
    bool isFileOpened;
    unsigned __int8 *pIOBuffer;
    unsigned int uIOBufferSize;
    struct FileHeader header;
    struct Directory *pRoot;
    char pContainerName[16];
    unsigned int uCurrentIndexDir;
    unsigned int uLODDataSize;
    unsigned int uNumSubDirs;
    struct Directory *pSubIndices;
    unsigned int uOffsetToSubIndex;
    FILE *pOutputFileHandle;
  };
  #pragma pack(pop)
};






/*    6 */
#pragma pack(push, 1)
struct LODWriteableFile: public LOD::File
{
  bool LoadFile(const char *pFilename, bool bWriting);
  unsigned int Write(const LOD::Directory *pDir, const void *pDirData, int a4);
  void CloseWriteFile();
  int CreateTempFile();
  int FixDirectoryOffsets();
  bool _4621A7();
  int CreateNewLod(LOD::FileHeader *pHeader, LOD::Directory *pDir, const char *Source);

  /*FILE *pFile;
  char pLODName[256];
  unsigned int isFileOpened;
  unsigned __int8 *pIOBuffer;
  unsigned int uIOBufferSize;
  struct LOD::FileHeader header;
  struct LOD::Directory *pRoot;
  unsigned __int8 pContainerName[16];
  unsigned int uCurrentIndexDir;
  unsigned int uLODDataSize;
  unsigned int uNumSubIndices;
  struct LOD::Directory *pSubIndices;
  unsigned int uOffsetToSubIndex;
  FILE *pOutputFileHandle;*/
};
#pragma pack(pop)




#pragma pack(push, 1)
struct LODFile_IconsBitmaps: public LOD::File
{
  LODFile_IconsBitmaps();
  virtual ~LODFile_IconsBitmaps();
  void SyncLoadedFilesCount();
  unsigned int FindTextureByName(const char *pName);
  bool Load(const char *pFilename, const char *pFolderName);
  void ReleaseAll();
  unsigned int LoadTexture(const char *pContainer, enum TEXTURE_TYPE uTextureType = TEXTURE_DEFAULT);
  struct Texture *LoadTexturePtr(const char *pContainer, enum TEXTURE_TYPE uTextureType = TEXTURE_DEFAULT);
  int LoadTextureFromLOD(struct Texture *pOutTex, const char *pContainer, enum TEXTURE_TYPE eTextureType);
  int ReloadTexture(struct Texture *pDst, const char *pContainer, int mode);
  void ReleaseHardwareTextures();
  void ReleaseLostHardwareTextures();
  void _410423_move_textures_to_device();
  int _410522(struct Texture *pDst, const char *pContainer, unsigned int uTextureType);
  void SetupPalettes(unsigned int uTargetRBits, unsigned int uTargetGBits, unsigned int uTargetBBits);
  void ReleaseAll2();
  void RemoveTexturesPackFromTextureList();
  void RemoveTexturesFromTextureList();
  void _inlined_sub0();
  void _inlined_sub1();
  void _inlined_sub2();

  inline int LoadDummyTexture()
  {
    for (unsigned int i = 0; i < uNumLoadedFiles; ++i)
      if (!strcmp(pTextures[i].pName, "pending"))
        return i;
    return LoadTextureFromLOD(&pTextures[uNumLoadedFiles], "pending", TEXTURE_16BIT_PALETTE);
  }

  Texture *GetTexture(int idx);


  /*FILE *pFile;
  unsigned __int8 pLODName[256];
  unsigned int isFileOpened;
  unsigned __int8 *pIOBuffer;
  unsigned int uIOBufferSize;
  struct LOD::FileHeader header;
  struct LOD::Directory *pRoot;
  unsigned __int8 pContainerName[16];
  unsigned int uCurrentIndexDir;
  unsigned int uLODDataSize;
  unsigned int uNumSubIndices;
  struct LOD::Directory *pSubIndices;
  unsigned int uOffsetToSubIndex;
  FILE *pOutputFileHandle;*/
  Texture pTextures[MAX_LOD_TEXTURES];
  unsigned int uNumLoadedFiles;
  int dword_11B80;
  int dword_11B84;
  int dword_11B88;
  int uTextureRedBits;
  int uTextureGreenBits;
  int uTextureBlueBits;
  int uNumPrevLoadedFiles;
  int uTexturePacksCount;
  int pFacesLock;
  int dword_011BA4;
  //int can_load_hardware_sprites;
  struct IDirectDrawSurface **pHardwareSurfaces;
  struct IDirect3DTexture2 **pHardwareTextures;
  char *ptr_011BB4;
};
#pragma pack(pop)






#pragma pack(push, 1)
struct LODSprite
{
  //----- (0046244C) --------------------------------------------------------
  inline LODSprite()
  {
    uHeight = 0;
    uPaletteId = 0;
    word_1A = 0;
    pSpriteLines = nullptr;
    pDecompressedBytes = nullptr;
  }
  ~LODSprite();

  void Release();
  int DrawSprite_sw(struct RenderBillboardTransform_local0 *a2, char a3);
  int _4AD2D1(struct RenderBillboardTransform_local0 *a2, int a3);
  
  char pName[12]; //0
  int uSpriteSize; //C
  __int16 uWidth; //10
  __int16 uHeight; //12
  __int16 uPaletteId; //14
  __int16 word_16;  //16
  __int16 uTexturePitch; //18
  __int16 word_1A; //1a
  int uDecompressedSize;  //1c
  struct LODSprite_stru0 *pSpriteLines; //20
  void *pDecompressedBytes;  //24
};
#pragma pack(pop)

/*   15 */
#pragma pack(push, 1)
struct LODFile_Sprites: public LOD::File
{
  LODFile_Sprites();
  virtual ~LODFile_Sprites();

  void DeleteSomeSprites();
  void DeleteSpritesRange(int uStartIndex, int uStopIndex);
  int _461397();
  void DeleteSomeOtherSprites();
  int LoadSpriteFromFile(LODSprite *pSpriteHeader, const char *pContainer);
  bool LoadSprites(const char *pFilename);
  int LoadSprite(const char *pContainerName, unsigned int uPaletteID);
  void ReleaseLostHardwareSprites();
  void ReleaseAll();
  void MoveSpritesToVideoMemory();
  void _inlined_sub0();
  void _inlined_sub1();


  /*FILE *pFile;
  unsigned __int8 pLODName[256];
  unsigned int isFileOpened;
  unsigned __int8 *pIOBuffer;
  unsigned int uIOBufferSize;
  struct LOD::FileHeader header;
  struct LOD::Directory *pRoot;
  unsigned __int8 pContainerName[16];
  unsigned int uCurrentIndexDir;
  unsigned int uLODDataSize;
  unsigned int uNumSubIndices;
  struct LOD::Directory *pSubIndices;
  unsigned int uOffsetToSubIndex;
  FILE *pOutputFileHandle;*/
  struct LODSprite pSpriteHeaders[MAX_LOD_SPRITES];
  signed int uNumLoadedSprites;
  int field_ECA0;
  int field_ECA4;
  int field_ECA8;
  //int can_load_hardware_sprites;
  Sprite *pHardwareSprites;
  int field_ECB4;
};
#pragma pack(pop)

/*   17 */
#pragma pack(push, 1)
struct LODSprite_stru0
{
  int16_t a1;
  int16_t a2;
  char* pos;
};
#pragma pack(pop)




extern LODFile_IconsBitmaps *pEvents_LOD;

extern LODFile_IconsBitmaps *pIcons_LOD;
extern LODFile_IconsBitmaps *pIcons_LOD_mm6;
extern LODFile_IconsBitmaps *pIcons_LOD_mm8;

extern LODFile_IconsBitmaps *pBitmaps_LOD;
extern LODFile_IconsBitmaps *pBitmaps_LOD_mm6;
extern LODFile_IconsBitmaps *pBitmaps_LOD_mm8;

extern LODFile_Sprites *pSprites_LOD;
extern LODFile_Sprites *pSprites_LOD_mm6;
extern LODFile_Sprites *pSprites_LOD_mm8;

extern LODWriteableFile *pNew_LOD;
extern LODWriteableFile *pGames_LOD;




extern int _6A0CA4_lod_binary_search; // weak
extern int _6A0CA8_lod_unused; // weak