sendOtp method

Future<void> sendOtp(String email)

Send an OTP challenge for email. On success, transitions to CrossmintEmailSignInStep.otpInput and starts the resend cooldown. On failure, stores the error message on error and stays on the email-input step.

A blank email is treated as a validation error (no network call).

Implementation

Future<void> sendOtp(String email) async {
  final String trimmed = email.trim();
  if (trimmed.isEmpty) {
    _error = 'Please enter your email address.';
    _safeNotify();
    return;
  }

  _isLoading = true;
  _error = null;
  _safeNotify();
  try {
    final CrossmintEmailOtpChallenge challenge = await _auth.sendEmailOtp(
      trimmed,
    );
    if (_disposed) {
      return;
    }
    _submittedEmail = trimmed;
    _emailId = challenge.state;
    _step = CrossmintEmailSignInStep.otpInput;
    _startCooldown();
  } on Exception catch (e) {
    if (_disposed) {
      return;
    }
    _error = e.toString();
  } finally {
    if (!_disposed) {
      _isLoading = false;
      _safeNotify();
    }
  }
}