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/*

 * Programme name: Backy

 * Description: The programme for backing up a file.

 *

 * Backy.c

 * Author: JohnXenox aka Aleksandr Igorevich.

 * Port to GCC: maxcodehack

 *

 * Works from command line, only!

 */

#define CREATION_DATE "2020.05.27"

#include 

#include 

#include 

#include 

#include "Backy_lib.h"

int date = 0;

int time = 0;

char years = 0;

char months = 0;

char days = 0;

char hours = 0;

char minutes = 0;

char seconds = 0;

char *data = 0;

int length = 0;

char path_in[4096] = {0};

char path_out[4096] = {0};

char num[3] = {0};

char full_date[25] = {0};

char ext[] = ".bak";

char flag = 0;

char state;

int main(int argc, char** argv)

{

// ============================================================ //

// preprocessing arguments from the command line. ============= //

//

// 0 argument - name of the programme.

// 1 argument - path to the file with name that need to be backup.

// 2 argument - the key (-o).

// 3 argument - path to the output directory without the name of the file.

// printf("Number of args: %d\n", argc);

// printf("Argv 0: %s\n", argv[0]);

// sprintf("Argv 1: %s\n\n", argv[1]);

// ============================================================ //

// process the command line arguments. ======================== //

    if (argc > 1)

    {

        for (int i = 1; i < argc; i++)

        {

            // if found the key "-o", then copy output path into the array "path_out".

            if (*argv[i] == '-') // && (*(argv[i] + 1) == 'o'))

            {

                // printf("Key -o is found!\n");

                i++;

                flag = 1;

                if (i <= argc)

                {

                    // copying of a current path into the array "path_out".

                    strcpy(path_out, argv[i]);

                    // printf("Path output is copyed!\n");

                    i++;

                    break;

                }

            }

            // if input path is found, then copy it into the array "path_in".

            if (*argv[i] == '/')

            {

                flag = 2;

                // copying of a current path into the buffer.

                strcpy(path_in, argv[i]);

                if (flag != 1)

                {

                    int idx = strlen(path_in);

                    while (path_in[idx]  !=  '/')

                    {

                        idx--;

                    }

                    strncpy(path_out, path_in, idx);

                }

                // printf("Path input is copyed!\n");

            }

            // if found characters.

            if ( (*argv[i] > '0') && (*argv[i] < '9') || \

                 (*argv[i] > 'A') && (*argv[i] < 'Z') || \

                 (*argv[i] > 'a') && (*argv[i] < 'z') )

            {

                 flag = 3;

                 strcpy(path_in, argv[0]);

                 // printf("Arg 0 is copyed!\n");

                 int idx = strlen(path_in);

                 while (path_in[idx]  !=  '/')

                 {

                     path_in[idx]  =  0;

                     idx--;

                 }

                 idx++;

                 strcpy(path_out, path_in);

                 strcpy(&path_in[idx], argv[1]);

                 // printf("Arg 1 is added!\n");

            }

        }

        // if not found the flag, then copy path from "path_in" into "path_out".

        if ((flag == 0) && (flag != 2)  && (flag != 3))

        {

            // copying the input path into the output path,

            strcpy(path_out, path_in);

            //printf("Path input is copyed into the path output!\n");

        }

    }

    else

    {

   	    load_console();

        con_set_title("Useful info!");

        #if defined (lang_en)

            con_printf("\n Name: Backy");

            con_printf("\n Date: %s", CREATION_DATE);

            con_printf("\n Description: The programme for backing up a file.\n");

            con_printf("\n Author: JohnXenox\n");

            con_printf("\n Usage: backy  <-o path2>\n");

            con_printf("  path1 - path to a file to be backuped.\n");

            con_printf("  -o path2 - path to the output directory without the name of a file.\n\n");

            con_printf(" Examples:\n");

            con_printf("  backy test.c\n");

            con_printf("  backy test.c -o /tmp0/1/\n");

            con_printf("  backy /hd0/1/test.c\n");

            con_printf("  backy /hd0/1/test.c -o /tmp0/1/\n");

        #elif defined (lang_ru)

            con_printf("\n ���: Backy");

            con_printf("\n ���: %s", CREATION_DATE);

            con_printf("\n ���ᠭ��: �ணࠬ�� ��� ᮧ����� १�ࢭ�� ����� 䠩��.\n");

            con_printf("\n ����: JohnXenox\n");

            con_printf("\n �ᯮ�짮�����: backy  <-o path2>\n");

            con_printf("  path1 - ���� � 䠩��, ����� ���� ᪮��஢���.\n");

            con_printf("  -o path2 - ���� � ��४�ਨ, � ������ �㤥� ᪮��஢��� १�ࢭ�� ����� 䠩��.\n\n");

            con_printf(" �ਬ���:\n");

            con_printf("  backy test.c\n");

            con_printf("  backy test.c -o /tmp0/1/\n");

            con_printf("  backy /hd0/1/test.c\n");

            con_printf("  backy /hd0/1/test.c -o /tmp0/1/\n");

        #endif

        return 0;

    }

    //printf("Path_in: %s\n", path_in);

    //printf("Path_out: %s\n", path_out);

// ============================================================ //

// getting the time in BCD. =================================== //

    time = getTime();  // time = 0x00SSMMHH.

    hours = (char)time;

    minutes = (char)(time >> 8);

    seconds = (char)(time >> 16);

// ============================================================ //

// getting the date in BCD. =================================== //

    date = getDate();  // date = 0x00DDMMYY.

    years = (char)date;

    months = (char)(date >> 8);

    days = (char)(date >> 16);

// ============================================================ //

// fills the array with the date in ASCII. ==================== //

    char ofs = 0;

    char *dta = 0;

    for (char i = 0; i < 3; i++)

    {

        if (i == 0)

        {

            dta = &years;

            full_date[ofs] = '2';

            ofs++;

            full_date[ofs] = '0';

            ofs++;

        }

        if (i == 1)

        {

            dta = &months;

        }

        if (i == 2)

        {

            dta = &days;

        }

        itoab(*dta, num, 16);

        if (num[1] == 0)

        {

            full_date[ofs] = '0';

            ofs++;

            full_date[ofs] = num[0];

        }

        else

        {

            full_date[ofs] = num[0];

            ofs++;

            full_date[ofs] = num[1];

        }

        ofs++;

        if (i != 2)

        {

            full_date[ofs] = '.';

            ofs++;

        }

    }

    full_date[ofs] = '_';

    ofs++;

// ============================================================ //

// fills the array with the time in ASCII. ==================== //

    ofs = 11;

    dta = 0;

    for (char i = 0; i < 3; i++)

    {

        if (i == 0)

            dta = &hours;

        if (i == 1)

            dta = &minutes;

        if (i == 2)

            dta = &seconds;

        itoab(*dta, num, 16);

        if (num[1] == 0)

        {

            full_date[ofs] = '0';

            ofs++;

            full_date[ofs] = num[0];

        }

        else

        {

            full_date[ofs] = num[0];

            ofs++;

            full_date[ofs] = num[1];

        }

        ofs++;

        if (i < 2)

        {

            full_date[ofs] = '.';

        }

        //else

        //{

        //    full_date[ofs] = '_';

        //}

        ofs++;

    }

// ============================================================ //

// adding the name of the input file to the output path. ====== //

    int i = 0;

    int y = 0;

    // searching for a zero terminator in the input path.

    while (path_in[i] != 0)

    {

        i++;

    }

    // searching for a slash in the input path.

    while (path_in[i] != '/')

    {

        i--;

    }

    // searching for a zero terminator in the output path.

    while (path_out[y] != 0)

    {

        y++;

    }

    // searching for a slash in the output path.

    if (path_out[y - 1] == '/')

    {

        y--;

    }

    // copying the input name of the file into the output path,

    strcpy(&path_out[y], &path_in[i]);

// ============================================================ //

// adding the extension and full date to the path. ============ //

    i = 0;

    // searching for a zero terminator in the output path.

    while (path_out[i] != 0)

    {

        i++;

    }

    path_out[i] = '_';

    i++;

    // adding full date.

    strcpy(&path_out[i], full_date);

    i += strlen(full_date);

    // adding the extension to a path.

    strncpy(&path_out[i], ext, 4);

    //printf("Path_in: %s\n", path_in);

    //printf("Path_out: %s\n", path_out);

    data = openFile(&length, path_in);

    if(data == 0)

    {

   	    load_console();

        con_set_title("Backy");

        #if defined (lang_en)

            con_printf("\nThe file isn't found!\n");

        #elif defined (lang_ru)

            con_printf("\n���� �� ������!\n");

        #endif

        return 13;

    }

    saveFile(length, data, 0, path_out);//return checkStateOnSave(saveFile(length, data, 0, path_out));

}