public override void FixtureSetup()
        {
            base.FixtureSetup();

            SqlSyntaxProviderTestHelper.EstablishSqlSyntax();

            var cacheProvider = new Mock<IRuntimeCacheProvider>();

            GatewayProviderService = new GatewayProviderService();

            var providers =
                GatewayProviderService.GetAllGatewayProviders()
                    .Where(x => x.GatewayProviderType == GatewayProviderType.Taxation);

            GatewayProviderSettings = providers.FirstOrDefault(x => x.Key == new Guid("DBC48C38-0617-44EA-989A-18AAD8D5DE52"));

            if (GatewayProviderSettings != null)
            {
                GatewayProviderService.Delete(GatewayProviderSettings);
            }

            var petaPoco = new PetaPocoUnitOfWorkProvider();


            var accountNumber = ConfigurationManager.AppSettings["AvaTax:AccountNumber"];
            var licenseKey = ConfigurationManager.AppSettings["AvaTax:LicenseKey"];
            var companyCode = ConfigurationManager.AppSettings["AvaTax:CompanyCode"];

            var sql = new Sql();

            var dto = new GatewayProviderSettingsDto()
            {
                Key = new Guid("DBC48C38-0617-44EA-989A-18AAD8D5DE52"),
                Name = "Avalara AvaTax Provider",
                Description = "Avalara AvaTax Provider",
                ExtendedData = "<extendedData />",
                EncryptExtendedData = false,
                ProviderTfKey = Constants.TypeFieldKeys.GatewayProvider.TaxationProviderKey,
                CreateDate = DateTime.Now,
                UpdateDate = DateTime.Now
            };


            petaPoco.GetUnitOfWork().Database.Insert(dto);

            GatewayProviderSettings =
                GatewayProviderService.GetGatewayProviderByKey(new Guid("DBC48C38-0617-44EA-989A-18AAD8D5DE52"));

            var providerSettings = new AvaTaxProviderSettings()
            {
                LicenseKey = licenseKey,
                AccountNumber = accountNumber,
                CompanyCode = companyCode,
                DefaultStoreAddress = (new Core.Models.Address()
                {
                    Name = "Mindfly, Inc.",
                    Address1 = "114 W. Magnolia St. Suite 300",
                    Locality = "Bellingham",
                    Region = "WA",
                    PostalCode = "98225",
                    CountryCode = "US"
                }).ToTaxAddress() as TaxAddress,
                UseSandBox = true
            };

            GatewayProviderSettings.ExtendedData.SaveProviderSettings(providerSettings);

            GatewayProviderService.Save(GatewayProviderSettings);

            Provider = new AvaTaxTaxationGatewayProvider(GatewayProviderService, GatewayProviderSettings, cacheProvider.Object);

            // ShipCountry
            DataWorker.DeleteAllShipCountries();
            var shipCountryDto = new ShipCountryDto()
            {
                CatalogKey = Core.Constants.DefaultKeys.Warehouse.DefaultWarehouseCatalogKey,
                CountryCode = "US",
                Name = "United States",
                Key = Guid.NewGuid(),
                CreateDate = DateTime.Now,
                UpdateDate = DateTime.Now
            };
            petaPoco.GetUnitOfWork().Database.Insert(shipCountryDto);
        }
        /// <summary>
        /// Processes the Authorize and AuthorizeAndCapture transactions
        /// </summary>
        /// <param name="invoice">The <see cref="IInvoice"/> to be paid</param>
        /// <param name="payment">The <see cref="Core.Models.IPayment"/> record</param>
        /// <param name="args"></param>
        /// <returns>The <see cref="Core.Gateways.Payment.IPaymentResult"/></returns>
        public IPaymentResult InitializePayment(IInvoice invoice, IPayment payment, ProcessorArgumentCollection args)
        {
            try
            {            
                var sagePayDirectIntegration = new SagePayAPIIntegration(Settings);
                var request = sagePayDirectIntegration.DirectPaymentRequest();

                var creditCard = args.AsCreditCard();
                 
                SetSagePayApiData(request, invoice, payment, creditCard);                

                // Incredibly frustratingly, the sagepay integration kit provided by sagepay does not support paypal integration with sagepay direct so if this is a paypal transaction, we have to build the post manually.

                if (request.CardType == CardType.PAYPAL)
                {
                    using (var client = new HttpClient())
                    {
                        var values = new Dictionary<string, string> { };

                        // Build the post and fix the values that the integration kit breaks...
                        foreach (var property in request.GetType().GetAllProperties())
                        {
                            if (property.CanRead && property.GetValue(request) != null)
                            {
                                if (property.Name == "VpsProtocol")
                                {
                                    values.Add(property.Name, "3.00");
                                }
                                else if (property.Name == "TransactionType")
                                {
                                    values.Add("TxType", "PAYMENT");
                                }
                                else
                                {
                                    values.Add(property.Name, property.GetValue(request).ToString());
                                }
                            }
                        }

                        var content = new FormUrlEncodedContent(values);

                        var response = client.PostAsync(string.Format("https://{0}.sagepay.com/gateway/service/vspdirect-register.vsp", Settings.Environment), content).Result;

                        var responseString = response.Content.ReadAsStringAsync().Result.Replace("\r\n", "&");

                        NameValueCollection sagePayResponseValues = HttpUtility.ParseQueryString(responseString);
                        if (sagePayResponseValues["Status"] == "PPREDIRECT")
                        {
                            var redirectUrl = sagePayResponseValues["PayPalRedirectURL"] + "&token=" + sagePayResponseValues["token"];
                            payment.ExtendedData.SetValue(Constants.ExtendedDataKeys.SagePayPaymentUrl, redirectUrl);

                            var returnUrl = GetWebsiteUrl() + Settings.ReturnUrl;
                            payment.ExtendedData.SetValue(Constants.ExtendedDataKeys.ReturnUrl, returnUrl);

                            var cancelUrl = GetWebsiteUrl() + Settings.CancelUrl;
                            payment.ExtendedData.SetValue(Constants.ExtendedDataKeys.CancelUrl, cancelUrl);

                            payment.ExtendedData.SetValue(Constants.ExtendedDataKeys.SagePayTransactionCode, sagePayResponseValues["VPSTxId"]);

                            return new PaymentResult(Attempt<IPayment>.Succeed(payment), invoice, true);

                        }
                        else
                        {
                            return new PaymentResult(Attempt<IPayment>.Fail(payment, new Exception(sagePayResponseValues["StatusDetail"])), invoice, true);
                        }


                    }

                }

                IDirectPaymentResult result = sagePayDirectIntegration.ProcessDirectPaymentRequest(request, string.Format("https://{0}.sagepay.com/gateway/service/vspdirect-register.vsp", Settings.Environment));
                

                
                if (result.Status == ResponseStatus.OK)
                {
                    payment.Collected = true;
                    payment.Authorized = true;
                    GatewayProviderService service = new GatewayProviderService();
                    service.ApplyPaymentToInvoice(payment.Key, invoice.Key, Core.AppliedPaymentType.Debit, "SagePay: capture authorized", invoice.Total);
                    return new PaymentResult(Attempt<IPayment>.Succeed(payment), invoice, true);
                }
                else if (result.Status == ResponseStatus.THREEDAUTH)
                {
                    
                    // For 3D Secure we have to show a client side form which posts to the ACS url. 
                      Func<string, string> adjustUrl = (url) =>
                {
                    if (!url.StartsWith("http")) url = GetWebsiteUrl() + (url[0] == '/' ? "" : "/") + url;
                    url = url.Replace("{invoiceKey}", invoice.Key.ToString(), StringComparison.InvariantCultureIgnoreCase);
                    url = url.Replace("{paymentKey}", payment.Key.ToString(), StringComparison.InvariantCultureIgnoreCase);
                    return url;
                };

                    var redirectUrl = adjustUrl("/App_Plugins/Merchello.SagePay/3dsecureRedirect.aspx?");
                    redirectUrl += "acsurl=" + Base64Encode(result.AcsUrl);
                    redirectUrl += "&PaReq=" + Base64Encode(result.PaReq);
                    redirectUrl += "&MD=" + Base64Encode(result.Md);
                    redirectUrl += "&TermUrl=" + Base64Encode(adjustUrl("/umbraco/MerchelloSagePay/SagePayApi/ThreeDSecureCallback?InvoiceKey={invoiceKey}&PaymentKey={paymentKey}"));
                    payment.ExtendedData.SetValue(Constants.ExtendedDataKeys.ThreeDSecureUrl, redirectUrl);

                    var returnUrl = GetWebsiteUrl() + Settings.ReturnUrl;
                    payment.ExtendedData.SetValue(Constants.ExtendedDataKeys.ReturnUrl, returnUrl);

                    var cancelUrl = GetWebsiteUrl() + Settings.CancelUrl;
                    payment.ExtendedData.SetValue(Constants.ExtendedDataKeys.CancelUrl, cancelUrl);

                    return new PaymentResult(Attempt<IPayment>.Succeed(payment), invoice, true);

                }
                //else if (result.Status == ResponseStatus.PPREDIRECT)
                //{
                //    var redirectUrl = result.PayPalRedirectUrl + "&token=" + result.Token;
                //    payment.ExtendedData.SetValue(Constants.ExtendedDataKeys.SagePayPaymentUrl, redirectUrl);

                //    var returnUrl = GetWebsiteUrl() + Settings.ReturnUrl;
                //    payment.ExtendedData.SetValue(Constants.ExtendedDataKeys.ReturnUrl, returnUrl);

                //    var cancelUrl = GetWebsiteUrl() + Settings.CancelUrl;
                //    payment.ExtendedData.SetValue(Constants.ExtendedDataKeys.CancelUrl, cancelUrl);

                //    return new PaymentResult(Attempt<IPayment>.Succeed(payment), invoice, true);
                //}
                else
                {
                    return new PaymentResult(Attempt<IPayment>.Fail(payment, new Exception(result.StatusDetail)), invoice, true);
                }

            }
            catch (Exception ex)
            {
                return new PaymentResult(Attempt<IPayment>.Fail(payment, ex), invoice, true);
            }

        }