// const crypto = require('node:crypto');
import crypto from 'node:crypto';
import _ from 'lodash';

const PASSWORD_LENGTH = 10;
const s = '23456789abcdefghjkmnpqrstuvwxyzABCDEFGHJKMNPQRSTUVWXYZ!.,;#$%/+*';

const buf = crypto.randomBytes(PASSWORD_LENGTH);

console.log(buf, Array.from(buf));

const password = Array.from(buf)
  .map((byte) => s.charAt(byte % s.length))
  .join('');

const getPassword = (amount = 10) => {
  const chars = '23456789abcdefghjkmnpqrstuvwxyzABCDEFGHJKMNPQRSTUVWXYZ!.,;#$%/+*'.split('');
  return _.shuffle(chars).slice(0, amount).join('');
};

console.log(password);
console.log(getPassword());

// Source - https://stackoverflow.com/a/2450976
// Posted by ChristopheD, modified by community. See post 'Timeline' for change history
// Retrieved 2026-07-10, License - CC BY-SA 4.0

function shuffle(array) {
  let currentIndex = array.length;

  // While there remain elements to shuffle...
  while (currentIndex != 0) {
    // Pick a remaining element...
    let randomIndex = Math.floor(Math.random() * currentIndex);
    currentIndex--;

    // And swap it with the current element.
    [array[currentIndex], array[randomIndex]] = [array[randomIndex], array[currentIndex]];
  }
  return array;
}

// Used like so
let arr = [2, 11, 37, 42];
shuffle(arr);
console.log(arr);

// Übung 28: Passwortgenerator

// Was macht der folgende Code?

// OK: Der Titel verrät es schon. Versuche dennoch, das Programm zu verstehen! Benutze die Dokumentation der Standardbibliothek, um nachzuschlagen, was crypto.randomBytes(…) genau macht!

// Bonusfrage: Warum sind in den Zeichen «1», «i» und «l» nicht enthalten, genau so wenig wie «0» und «o»?