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/*
	This program adds an user to account.txt
	Don't usr it When login-sever is working.
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

char *account_txt = "../save/account.txt";

//-----------------------------------------------------
// Function to suppress control characters in a string.
//-----------------------------------------------------
int remove_control_chars (unsigned char *str)
{
    int  i;
    int  change = 0;

    for (i = 0; str[i]; i++)
    {
        if (str[i] < 32)
        {
            str[i] = '_';
            change = 1;
        }
    }

    return change;
}

int main (int argc, char *argv[])
{

    char username[24];
    char password[24];
    char sex[2];

    int  next_id, id;
    char line[1024];

    // Check to see if account.txt exists.
    printf ("Checking if '%s' file exists...\n", account_txt);
    FILE *FPaccin = fopen (account_txt, "r");
    if (FPaccin == NULL)
    {
        printf ("'%s' file not found!\n", account_txt);
        printf ("Run the setup wizard please.\n");
        exit (0);
    }

    next_id = 2000000;
    while (fgets (line, sizeof (line) - 1, FPaccin))
    {
        if (line[0] == '/' && line[1] == '/')
        {
            continue;
        }
        if (sscanf (line, "%d\t%%newid%%\n", &id) == 1)
        {
            if (next_id < id)
            {
                next_id = id;
            }
        }
        else
        {
            sscanf (line, "%i%[^	]", &id);
            if (next_id <= id)
            {
                next_id = id + 1;
            }
        }
    }
    fclose (FPaccin);
    printf ("File exists.\n");

    printf ("Don't create an account if the login-server is online!!!\n");
    printf
        ("If the login-server is online, press ctrl+C now to stop this software.\n");
    printf ("\n");

    strcpy (username, "");
    while (strlen (username) < 4 || strlen (username) > 23)
    {
        printf ("Enter an username (4-23 characters): ");
        scanf ("%s", &username);
        username[23] = 0;
        remove_control_chars (username);
    }

    strcpy (password, "");
    while (strlen (password) < 4 || strlen (password) > 23)
    {
        printf ("Enter a password (4-23 characters): ");
        scanf ("%s", &password);
        password[23] = 0;
        remove_control_chars (password);
    }

    strcpy (sex, "");
    while (strcmp (sex, "F") != 0 && strcmp (sex, "M") != 0)
    {
        printf ("Enter a gender (M for male, F for female): ");
        scanf ("%s", &sex);
    }

    FILE *FPaccout = fopen (account_txt, "r+");
    fseek (FPaccout, 0, SEEK_END);
    fprintf (FPaccout, "%i	%s	%s	-	%s	-\r\n", next_id, username,
             password, sex);
    fclose (FPaccout);

    printf ("Account added.\n");
}