#!/usr/bin/env python3

from os.path import exists
from random import randrange

LETTERS = "abcdefghijklmnopqrstuvwxyz0123456789"
letter_len = len(LETTERS)

def spacebar(length: int):
    picked = ""
    while len(picked) < length:
        pick = LETTERS[randrange(0, letter_len)]
        if pick in picked:
            continue
        picked += pick
    return picked

def card():
    picked = ""
    while len(picked) < letter_len:
        pick = LETTERS[randrange(0, letter_len)]
        if pick in picked:
            continue
        picked += pick
    return picked

def modify_skript(spacebar, card):
    old = []
    if not exists("skript.js"):
        return False
    with open("skript.js", "r") as f:
        for line in f:
            if line.startswith("let spacebar"):
                old.append(f"let spacebar = \"{spacebar}\";\n")
            elif line.startswith("let keys"):
                old.append(f"let keys = \"{card}\".split(\"\");\n")
            else:
                old.append(line)
    with open(".user.js", "w") as f:
        for line in old:
            f.write(line)
    return True

if __name__ == "__main__":
    sb = spacebar(6)
    c = card()
    print(f"SpaceBar: {sb}")
    print(f"Letters:  {LETTERS}")
    print(f"Card:     {c}")
    modify_skript(sb, c)