signup1 method

Implementation

Future signup1()async{
  if (!validateSignupFields()) {
    return;
  }

    //user does not exist
    var result = await checkReferralCode(referralCodeTxtController.text);
    if (!result) {
      CustomFlashWidget.showFlashMessage(
        type: FlashType.error,
        title: "Invalid Invitation Code",
        duration: Duration(seconds: 10),
        message:
        "The invitation code you entered is invalid. Please try again.",
        actions: [
          FlashAction(
            label: 'Contact Support',
            onPressed: () {
              launchEmail();
            },
          ),
          FlashAction(
            label: 'Try Again',
          ),
        ],
      );
      return;
    }
    try {
      openDialog(LoadingDialog());
      UserCredential credential = await FirebaseAuth.instance
          .createUserWithEmailAndPassword(
          email: emailTxtController.text.trim(),
          password: passTxtController.text);
      credential.user?.updateDisplayName("${firstNameTxtController.text} ${lastNameTxtController.text}");
      handleSignup();
    }

    on FirebaseAuthException catch (e) {
      closeDialog();
      switch (e.code) {
        case 'email-already-in-use':
          CustomFlashWidget.showFlashMessage(
            type: FlashType.error,
            title: "Error",
            message: 'This email is already associated with an account.',
          );
          print('This email is already associated with an account.');
          break;
        case 'invalid-email':
          CustomFlashWidget.showFlashMessage(
            type: FlashType.error,
            title: "Error",
            message: 'The email address is badly formatted.',
          );
          print('The email address is badly formatted.');
          break;
        case 'operation-not-allowed':
          CustomFlashWidget.showFlashMessage(
            type: FlashType.error,
            title: "Error",
            message: 'An Error occurred. Please contact support',
          );
          print('Email/password accounts are not enabled. Please enable them in Firebase Console.');
          break;
        case 'weak-password':
          CustomFlashWidget.showFlashMessage(
            type: FlashType.error,
            title: "Error",
            message: 'Password is weak. Please try a stronger password',
          );
          break;
        default:

          CustomFlashWidget.showFlashMessage(
            type: FlashType.error,
            title: "Error",
            message: 'An error occurred. Please contact support',
          );
          print('Firebase Auth Error: ${e.code} - ${e.message}');
      }
    } catch (e) {
      CustomFlashWidget.showFlashMessage(
        type: FlashType.error,
        title: "Error",
        message: 'An error occurred. Please contact support',
      );
      print('Unexpected error: $e');
    }


}