public async Task ManagePaymentInstrument()

in src/Web/Controllers/ManageController.cs [223:304]
70 lines of code
3 McCabe index (conditional complexity)

        public async Task<IActionResult> ManagePaymentInstrument(ManagePaymentInstrumentViewModel model)
        {
            var user = await _userManager.GetUserAsync(User);
            if (user == null)
            {
                throw new ApplicationException($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
            }

            // Set card info
            user.DefaultCardType = model.CreditCard.CardType;
            user.DefaultCardNumber = model.CreditCard.CardNumber;
            user.DefaultCardName = model.CreditCard.CardName;
            user.DefaultCVV = model.CreditCard.CVV;
            user.DefaultExpirationMonth = model.CreditCard.ExpirationMonth;
            user.DefaultExpirationYear = model.CreditCard.ExpirationYear;

            // Set billing address info
            user.BillingAddress1 = model.BillingAddress.Address1;
            user.BillingAddress2 = model.BillingAddress.Address2;
            user.BillingCity = model.BillingAddress.City;
            user.BillingState = model.BillingAddress.State;
            user.BillingZipCode = model.BillingAddress.ZipCode;
            user.BillingCountryRegion = model.BillingAddress.CountryRegion;

            var updateResult = await _userManager.UpdateAsync(user);

            #region Fraud Protection Service
            // If storing the user's payment information succeeds, update Fraud Protection.
            if (updateResult.Succeeded)
            {
                var billingAddress = new AddressDetails
                {
                    FirstName = user.FirstName,
                    LastName = user.LastName,
                    Street1 = user.BillingAddress1,
                    Street2 = user.BillingAddress2,
                    City = user.BillingCity,
                    State = user.BillingState,
                    ZipCode = user.BillingZipCode,
                    Country = user.BillingCountryRegion
                };

                var userId = user.Email;

                var fraudProtectionUser = new User
                {
                    UserId = userId,
                    PaymentInstrumentList = new List<PaymentInstrument>
                    {
                        new PaymentInstrument
                        {
                            MerchantPaymentInstrumentId = $"{userId}-CreditCard",
                            Type = PaymentInstrumentType.CreditCard.ToString(),
                            CardType = model.CreditCard.CardType,
                            HolderName = model.CreditCard.CardName,
                            BIN = model.CreditCard.BIN,
                            ExpirationDate = model.CreditCard.ExpirationDate,
                            LastFourDigits = model.CreditCard.LastFourDigits,
                            BillingAddress = billingAddress,
                            CreationDate = DateTimeOffset.Now,
                            State = PaymentInstrumentState.Active.ToString(),
                        }
                    },
                    DeviceContext = new DeviceContext
                    {
                        DeviceContextId = _contextAccessor.GetSessionId(),
                        IPAddress = _contextAccessor.HttpContext.Connection.RemoteIpAddress.ToString(),
                        Provider = DeviceContextProvider.DFPFingerPrinting.ToString()
                    }
                };

                var correlationId = _fraudProtectionService.NewCorrelationId;
                var response = await _fraudProtectionService.PostUser(fraudProtectionUser, correlationId);

                var fraudProtectionIO = new FraudProtectionIOModel(correlationId, fraudProtectionUser, response, "UpdateAccount");
                TempData.Put(FraudProtectionIOModel.TempDataKey, fraudProtectionIO);
            }
            #endregion

            StatusMessage = "Your payment information has been updated";
            return RedirectToAction(nameof(ManagePaymentInstrument));
        }