signUp method

Implementation

Future<void> signUp() async {
  print('subscriptionType-AAA: ${subscriptionType.value}');
  try {
    if (!validateSignupFields()) {
      return;
    }
    bool userExists = await checkUserExistence(
      emailTxtController.text,
      phoneNumberController.text.trim(),
    );

    if (userExists) return;


    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;
    }
    loadingDialog();
    try {
      isEmailAuth.value = true;
      PhoneAuthCredential? phoneAuthCredential = await verifyPhoneNumber();
      print("PhoneAuthCredential${phoneAuthCredential.toString()}");
      if (phoneAuthCredential == null) {
        closeDialog();
        return;
      }
      UserCredential phoneVerificationResult;
      try {
        phoneVerificationResult = await FirebaseAuth.instance
            .signInWithCredential(phoneAuthCredential);
        if (phoneVerificationResult.user == null) {
          closeDialog();
          CustomFlashWidget.showFlashMessage(
            type: FlashType.error,
            title: "Invalid OTP",
            message: "The OTP you entered is not valid. Please enter the correct one",
          );
          return;
        }
      } catch (e) {
        closeDialog();
        CustomFlashWidget.showFlashMessage(
          type: FlashType.error,
          title: "Invalid OTP",
          message: "The OTP you entered is not valid. Please enter the correct one",
        );
        return;
      }
      AuthCredential emailAuthCredential = EmailAuthProvider.credential(
        email: emailTxtController.text.trim(),
        password: passTxtController.text.trim(),
      );

      User? user = phoneVerificationResult.user;
      if (user == null) {
        closeDialog();
        return;
      }
      try {
        await user.linkWithCredential(emailAuthCredential);
        await user.updateDisplayName(
            '${firstNameTxtController.text} ${lastNameTxtController.text}');
        print("countryCode: ${countryCodeController.text}");
        print("phoneNumber: ${phoneNumberController.text}");

      }
      catch(e){
        print(e.toString());
        CustomFlashWidget.showFlashMessage(
          type: FlashType.error,
          title: "Unable to Register",
          message: "We were unable to Register you at the moment. Please try again Later",
        );
        await user.delete();
        return ;
      }
        final loginResult = await Requests.createUser(
          user.uid,
          firstName: firstNameTxtController.text,
          email: emailTxtController.text,
          lastName: lastNameTxtController.text,
          phoneNo: phoneNumberController.text.isEmpty
              ? mobileNumTxtController.text
              : phoneNumberController.text,
          countryCode: countryCodeController.text,
          referralCode: referralCodeTxtController.text,
          type:
          subscriptionType.value == "Business" ? "CORPORATE" : "INDIVIDUAL",
        );

      if (loginResult?['statusCode'] == 200) {
        await linkEmailPassword(user, loginResult?['referrerCode']);
        await linkEmailPassword(user, loginResult?['referrerCode']);
      } else {
        closeDialog();
        CustomFlashWidget.showFlashMessage(
          type: FlashType.error,
          title: "Error",
          message:
              "Unable to sign up. Please make sure you are not already signed up!",
        );
        userExists = await checkUserExistence(
          emailTxtController.text,
          phoneNumberController.text.trim(),
        );
        if(!userExists){
          await user.delete();
        }

      }
    } on FirebaseAuthException catch (e) {
      closeDialog();

      if (e.code == 'email-already-in-use') {
        CustomFlashWidget.showFlashMessage(
          type: FlashType.error,
          title: "Error",
          message:
              "The account with this email address already exsist, please continue with login.",
        );
        signinSignupTab.value == 'SIGN-IN';
      } else if (e.code == 'account-exists-with-different-credential') {
        CustomFlashWidget.showFlashMessage(
          type: FlashType.error,
          title: "Error",
          message:
              "An account already exists with the same email address but different sign-in credentials. Try signing in with Google, Facebook, or another method you used before.",
        );
      } else if (e.code == 'too-many-requests') {
        CustomFlashWidget.showFlashMessage(
          type: FlashType.error,
          title: "Too Many Requests",
          message:
              "Too many attempts have been made. To protect your account, requests from this device have been temporarily blocked. Please try again later.",
        );
      } else if (e.code == 'invalid-email') {
        CustomFlashWidget.showFlashMessage(
          type: FlashType.error,
          title: "Invalid Email",
          message:
              "The email address format is invalid. Please check and try again.",
        );
      } else if (e.code == 'weak-password') {
        CustomFlashWidget.showFlashMessage(
          type: FlashType.error,
          title: "Weak Password",
          message:
              "Your password is too weak. Please use a stronger password.",
        );
      } else if (e.code == 'operation-not-allowed') {
        CustomFlashWidget.showFlashMessage(
          type: FlashType.error,
          title: "Operation Not Allowed",
          message:
              "This sign-in method is currently disabled. Please contact support.",
        );
      } else {
        CustomFlashWidget.showFlashMessage(
          type: FlashType.error,
          title: "Authentication Error",
          message: e.message ?? "Something went wrong. Please try again.",
        );

      }
      print('Error: ${e.message}');
    } catch (e) {
      closeDialog();
      showRefinedErrorMessage(e);
    }
  } catch (e) {
    closeDialog();
    showRefinedErrorMessage(e);
  }
}