1// @ts-ignore - totp-generator lacks type declarations
2import totp from 'totp-generator'
3import base32 from 'hi-base32'
4import * as _ from 'lodash-es'
5import { getPlainMappedSec } from '../secretsF/getReqJsonSecretHF.mts'
6import { tsSecs } from '../secretsF/tsSecF.mts'
7
8export const genEmailOtp = ({email, appSecret = getPlainMappedSec(tsSecs.appSecret)}: {email: string, appSecret?: string}) => {
9
10  const stripped = base32.encode(appSecret + email)
11
12  const token = totp(stripped, {
13    timestamp: _.now(),
14    period: 60 * 60 * 12,
15    digits: 9,
16  })
17
18  return token
19}
20