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

void getFlag();
void output_line(FILE *outfile, unsigned long line, char *s);
// int gets(char *s);

int main(int argc, char **argv)
{
    setbuf(stdout, NULL); // turn off output buffering

    FILE *outfile = fopen("/tmp/prog.bas", "w");
    unsigned long line_no;
    struct
    {
        char buffer[32];
        unsigned long *line_pointer;
    } locals;
    line_no = 100;
    locals.buffer[0] = ' ';
    locals.line_pointer = &line_no;

    printf("Ready for some BASIC programming?\n");

    while (locals.buffer[0] != '\0')
    {
        printf("%lu ", *locals.line_pointer);

        if(!gets(locals.buffer)) // reads line, with newline replaced by '\0'
            break;

        output_line(outfile, line_no, locals.buffer);
        line_no = line_no + 10;
    }

    if (outfile) {
        fclose(outfile);
        system("python ctf.py run /tmp/prog.bas");
    }

    return 0;
}

void output_line(FILE *outfile, unsigned long line, char *s)
{
    static int state = 1;
    if (outfile && state)
    {
        fprintf(outfile, "%lu ", line);
        if (*s < ' ' || strncmp(s, "END", 4) == 0 || strncmp(s, "end", 4) == 0)
        {
            fprintf(outfile, "END\n");
            *s = '\0';
            state = 0;
        }
        else
        {
            while (*s >= ' ')
                fputc(toupper(*(s++)), outfile);
            fputc('\n', outfile);
        }
    }
}
void getFlag()
{
    if (getenv("TASK_NAME"))
    {
        system("python ctf.py success");
        exit(0);
    }
    else
    {
        printf("Success!");
        exit(0);
    }
}