import crypto from 'node:crypto';

// Unambiguous alphabet for human-shareable join codes: no 0/O or 1/I.
const CODE_ALPHABET = '23456789ABCDEFGHJKLMNPQRSTUVWXYZ';

export function randomId() {
  return crypto.randomUUID();
}

export function randomToken() {
  return crypto.randomBytes(24).toString('base64url');
}

export function randomJoinCode(length = 6) {
  let code = '';
  for (let i = 0; i < length; i++) {
    code += CODE_ALPHABET[crypto.randomInt(CODE_ALPHABET.length)];
  }
  return code;
}