#include "../include/syscalls.h"

#define STDOUT 1

unsigned strlen(const char* str)
{
    unsigned len = 0;
    while (*str)
    {
        ++len;
        ++str;
    }
    return len;
}

void main()
{
    const char* path = "/qwerty.txt";
    const char* msg  = "Suki Suki Daisuki Kekkon Shiyo, my honey!";

    char buf[128];

    // ── open file ─────────────────────────────
    long fd = syscall(SYS_OPEN, (long)path, 0, 0);

    // ── write message ─────────────────────────
    syscall(SYS_WRITE, fd, (long)msg, strlen(msg));

    // ── close ────────────────────────────────
    syscall(SYS_CLOSE, fd, 0, 0);

    // ── reopen ───────────────────────────────
    fd = syscall(SYS_OPEN, (long)path, 0, 0);

    // ── read into buffer ─────────────────────
    long n = syscall(SYS_READ, fd, (long)buf, sizeof(buf));

    // ── close ────────────────────────────────
    syscall(SYS_CLOSE, fd, 0, 0);

    // ── print buffer to stdout ───────────────
    syscall(SYS_WRITE, STDOUT, (long)buf, n);

    // ── done ────────────────────────────────
    while (1);
}