import * as OTPAuth from 'otpauth';

/**
 * Generate a TOTP code from a secret
 * @param secret - The base32 encoded secret
 * @returns The 6-digit OTP code
 */
export function generateOTP(secret: string): string {
  const totp = new OTPAuth.TOTP({
    issuer: 'Truck Wash',
    label: 'User',
    algorithm: 'SHA1',
    digits: 6,
    period: 30,
    secret: secret,
  });

  return totp.generate();
}