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#include "package.h"

#define PERIOD_4 (4 * 365 + 1)

#define PERIOD_100 (PERIOD_4 * 25 - 1)

#define PERIOD_400 (PERIOD_100 * 4 + 1)

#define _UTF8_START(n) (0x100 - (1 << (7 - (n))))

#define _UTF8_RANGE(n) (((UInt32)1) << ((n) * 5 + 6))

#define _UTF8_HEAD(n, val) ((Byte)(_UTF8_START(n) + (val >> (6 * (n)))))

#define _UTF8_CHAR(n, val) ((Byte)(0x80 + (((val) >> (6 * (n))) & 0x3F)))

#define MY_FILE_CODE_PAGE_PARAM

static ISzAlloc g_Alloc = { SzAlloc, SzFree };

static int Buf_EnsureSize(CBuf *dest, size_t size)

{

    if (dest->size >= size)

        return 1;

    Buf_Free(dest, &g_Alloc);

    return Buf_Create(dest, size, &g_Alloc);

}

};

static size_t Utf16_To_Utf8_Calc(const UInt16 *src, const UInt16 *srcLim)

{

    size_t size = 0;

    for (;;)

    {

        UInt32 val;

        if (src == srcLim)

            return size;

        size++;

        val = *src++;

        if (val < 0x80)

            continue;

        if (val < _UTF8_RANGE(1))

        {

            size++;

            continue;

        }

        if (val >= 0xD800 && val < 0xDC00 && src != srcLim)

        {

            UInt32 c2 = *src;

            if (c2 >= 0xDC00 && c2 < 0xE000)

            {

                src++;

                size += 3;

                continue;

            }

        }

        size += 2;

    }

}

static Byte *Utf16_To_Utf8(Byte *dest, const UInt16 *src, const UInt16 *srcLim)

{

    for (;;)

    {

        UInt32 val;

        if (src == srcLim)

            return dest;

        val = *src++;

        if (val < 0x80)

        {

            *dest++ = (char)val;

            continue;

        }

        if (val < _UTF8_RANGE(1))

        {

            dest[0] = _UTF8_HEAD(1, val);

            dest[1] = _UTF8_CHAR(0, val);

            dest += 2;

            continue;

        }

        if (val >= 0xD800 && val < 0xDC00 && src != srcLim)

        {

            UInt32 c2 = *src;

            if (c2 >= 0xDC00 && c2 < 0xE000)

            {

                src++;

                val = (((val - 0xD800) << 10) | (c2 - 0xDC00)) + 0x10000;

                dest[0] = _UTF8_HEAD(3, val);

                dest[1] = _UTF8_CHAR(2, val);

                dest[2] = _UTF8_CHAR(1, val);

                dest[3] = _UTF8_CHAR(0, val);

                dest += 4;

                continue;

            }

        }

        dest[0] = _UTF8_HEAD(2, val);

        dest[1] = _UTF8_CHAR(1, val);

        dest[2] = _UTF8_CHAR(0, val);

        dest += 3;

    }

}

static SRes Utf16_To_Utf8Buf(CBuf *dest, const UInt16 *src, size_t srcLen)

{

    size_t destLen = Utf16_To_Utf8_Calc(src, src + srcLen);

    destLen += 1;

    if (!Buf_EnsureSize(dest, destLen))

        return SZ_ERROR_MEM;

    *Utf16_To_Utf8(dest->data, src, src + srcLen) = 0;

    return SZ_OK;

}

static void GetAttribString(UInt32 wa, Bool isDir, char *s)

{

    s[0] = (char)(((wa & (1 << 4)) != 0 || isDir) ? 'D' : '.');

    s[1] = 0;

}

static void UInt64ToStr(UInt64 value, char *s)

{

    char temp[32];

    int pos = 0;

    do

    {

        temp[pos++] = (char)('0' + (unsigned)(value % 10));

        value /= 10;

    }

    while (value != 0);

    do

        *s++ = temp[--pos];

    while (pos);

    *s = '\0';

}

static SRes Utf16_To_Char(CBuf *buf, const UInt16 *s)

{

    unsigned len = 0;

    for (len = 0; s[len] != 0; len++);

    return Utf16_To_Utf8Buf(buf, s, len);

}

static char *UIntToStr(char *s, unsigned value, int numDigits)

{

    char temp[16];

    int pos = 0;

    do

        temp[pos++] = (char)('0' + (value % 10));

    while (value /= 10);

    for (numDigits -= pos; numDigits > 0; numDigits--)

        *s++ = '0';

    do

        *s++ = temp[--pos];

    while (pos);

    *s = '\0';

    return s;

}

static void UIntToStr_2(char *s, unsigned value)

{

    s[0] = (char)('0' + (value / 10));

    s[1] = (char)('0' + (value % 10));

}

static WRes OutFile_OpenUtf16(CSzFile *p, const UInt16 *name)

{

  CBuf buf;

  WRes res;

  Buf_Init(&buf);

  RINOK(Utf16_To_Char(&buf, name MY_FILE_CODE_PAGE_PARAM));

  printf("open file %s\n", (const char *)buf.data);

  res = OutFile_Open(p, (const char *)buf.data);

  Buf_Free(&buf, &g_Alloc);

  return res;

}

int create_dir(const char *path)

{

     int retval;

     __asm__ __volatile__ (

     "pushl $0 \n\t"

     "pushl $0 \n\t"

     "movl %1, 1(%%esp) \n\t"

     "pushl $0 \n\t"

     "pushl $0 \n\t"

     "pushl $0 \n\t"

     "pushl $0 \n\t"

     "pushl $9 \n\t"

     "movl %%esp, %%ebx \n\t"

     "movl $70, %%eax \n\t"

     "int $0x40 \n\t"

     "addl $28, %%esp \n\t"

     :"=a" (retval)

     :"r" (path)

     :"ebx");

  return retval;

};

static WRes MyCreateDir(const UInt16 *name)

{

  CBuf buf;

  WRes res;

  Buf_Init(&buf);

  RINOK(Utf16_To_Char(&buf, name MY_FILE_CODE_PAGE_PARAM));

  res = create_dir((const char *)buf.data) == 0 ? 0 : -1;

  Buf_Free(&buf, &g_Alloc);

  return res;

}

static SRes PrintString(const UInt16 *s)

{

    CBuf buf;

    SRes res;

    Buf_Init(&buf);

    res = Utf16_To_Char(&buf, s);

    if (res == SZ_OK)

        fputs((const char *)buf.data, stdout);

    Buf_Free(&buf, &g_Alloc);

    return res;

}

void PrintError(char *sz)

{

    printf("\nERROR: %s\n", sz);

}

static void ConvertFileTimeToString(const CNtfsFileTime *nt, char *s)

{

    unsigned year, mon, hour, min, sec;

    Byte ms[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

    unsigned t;

    UInt32 v;

    UInt64 v64 = nt->Low | ((UInt64)nt->High << 32);

    v64 /= 10000000;

    sec = (unsigned)(v64 % 60); v64 /= 60;

    min = (unsigned)(v64 % 60); v64 /= 60;

    hour = (unsigned)(v64 % 24); v64 /= 24;

    v = (UInt32)v64;

    year = (unsigned)(1601 + v / PERIOD_400 * 400);

    v %= PERIOD_400;

    t = v / PERIOD_100; if (t ==  4) t =  3; year += t * 100; v -= t * PERIOD_100;

    t = v / PERIOD_4;   if (t == 25) t = 24; year += t * 4;   v -= t * PERIOD_4;

    t = v / 365;        if (t ==  4) t =  3; year += t;       v -= t * 365;

    if (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0))

        ms[1] = 29;

    for (mon = 0;; mon++)

    {

        unsigned s = ms[mon];

        if (v < s)

            break;

        v -= s;

    }

    s = UIntToStr(s, year, 4); *s++ = '-';

    UIntToStr_2(s, mon + 1); s[2] = '-'; s += 3;

    UIntToStr_2(s, (unsigned)v + 1); s[2] = ' '; s += 3;

    UIntToStr_2(s, hour); s[2] = ':'; s += 3;

    UIntToStr_2(s, min); s[2] = ':'; s += 3;

    UIntToStr_2(s, sec); s[2] = 0;

}

void do_install(list_t *install)

{

    CFileInStream archiveStream;

    CLookToRead lookStream;

    CSzArEx db;

    SRes res;

    ISzAlloc allocImp;

    ISzAlloc allocTempImp;

    UInt16 *temp = NULL;

    size_t tempSize = 0;

    package_t   *pkg, *tmp;

    char        *cache_path;

    allocImp.Alloc = SzAlloc;

    allocImp.Free = SzFree;

    allocTempImp.Alloc = SzAllocTemp;

    allocTempImp.Free = SzFreeTemp;

    list_for_each_entry_safe(pkg, tmp, install, list)

    {

        cache_path = make_cache_path(pkg->filename);

        if (InFile_Open(&archiveStream.file, cache_path))

            continue;

        FileInStream_CreateVTable(&archiveStream);

        LookToRead_CreateVTable(&lookStream, False);

        lookStream.realStream = &archiveStream.s;

        LookToRead_Init(&lookStream);

        SzArEx_Init(&db);

        res = SzArEx_Open(&db, &lookStream.s, &allocImp, &allocTempImp);

        if (res == SZ_OK)

        {

            UInt32 i;

            UInt32 blockIndex    = 0xFFFFFFFF;  /* it can have any value before first call (if outBuffer = 0) */

            Byte *outBuffer      = 0;           /* it must be 0 before first call for each new archive. */

            size_t outBufferSize = 0;           /* it can have any value before first call (if outBuffer = 0) */

            for (i = 0; i < db.NumFiles; i++)

            {

                size_t offset = 0;

                size_t outSizeProcessed = 0;

                size_t len;

                unsigned isDir = SzArEx_IsDir(&db, i);

                if ( isDir )

                    continue;

                len = SzArEx_GetFileNameUtf16(&db, i, NULL);

                if (len > tempSize)

                {

                    SzFree(NULL, temp);

                    tempSize = len;

                    temp = (UInt16 *)SzAlloc(NULL, tempSize * sizeof(temp[0]));

                    if (!temp)

                    {

                        res = SZ_ERROR_MEM;

                        break;

                    }

                }

                SzArEx_GetFileNameUtf16(&db, i, temp);

                res = PrintString(temp);

                if (res != SZ_OK)

                    break;

                printf("\n");

                if (isDir)

                    printf("/");

                else

                {

                    res = SzArEx_Extract(&db, &lookStream.s, i,

                          &blockIndex, &outBuffer, &outBufferSize,

                          &offset, &outSizeProcessed,

                           &allocImp, &allocTempImp);

                    if (res != SZ_OK)

                        break;

                }

                if (1)

                {

                    CSzFile outFile;

                    size_t processedSize;

                    size_t j;

                    UInt16 *name = (UInt16 *)temp;

                    const UInt16 *destPath = (const UInt16 *)name;

                    for (j = 0; name[j] != 0; j++)

                        if (name[j] == '/')

                    {

                        if (1)

                        {

                            name[j] = 0;

                            MyCreateDir(name);

                            name[j] = CHAR_PATH_SEPARATOR;

                        }

                        else

                            destPath = name + j + 1;

                    }

                    if (isDir)

                    {

                        MyCreateDir(destPath);

                        printf("\n");

                        continue;

                    }

                    else if (OutFile_OpenUtf16(&outFile, destPath))

                    {

                        PrintError("can not open output file");

                        res = SZ_ERROR_FAIL;

                        break;

                    }

                    processedSize = outSizeProcessed;

                    if (File_Write(&outFile, outBuffer + offset, &processedSize) != 0 || processedSize != outSizeProcessed)

                    {

                        PrintError("can not write output file");

                        res = SZ_ERROR_FAIL;

                        break;

                    }

                    if (File_Close(&outFile))

                    {

                        PrintError("can not close output file");

                        res = SZ_ERROR_FAIL;

                        break;

                    }

                };

                continue;

            };

        };

    };

};