/// <summary>
/// Calculates the tax for the last item.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>The response.</returns>
private static CalculateTaxServiceResponse CalculateTax(CalculateTaxServiceRequest request)
{
ThrowIf.Null(request, "request");
TaxHelpers.SetSalesTaxGroup(request.RequestContext, request.Transaction);
SalesTaxOverrideHelper.CalculateTaxOverrides(request.RequestContext, request.Transaction);
// Consider active (non-void) lines for tax.
// Need to recalculate tax on return-by-receipt lines because we cannot reconstruct tax lines from return transaction lines alone.
// A few key information like IsExempt, IsTaxInclusive, TaxCode are not available on return transaction line.
foreach (var saleItem in request.Transaction.ActiveSalesLines)
{
saleItem.TaxRatePercent = 0;
saleItem.TaxLines.Clear();
}
var totaler = new SalesTransactionTotaler(request.Transaction);
totaler.CalculateTotals(request.RequestContext);
ClearChargeTaxLines(request.Transaction);
TaxContext taxContext = new TaxContext(request.RequestContext);
TaxCodeProvider defaultProvider = GetTaxProvider(request.RequestContext, taxContext);
defaultProvider.CalculateTax(request.RequestContext, request.Transaction);
return(new CalculateTaxServiceResponse(request.Transaction));
}
private static void OnCalculateTaxExecuting(CalculateTaxServiceRequest request)
{
if (!string.IsNullOrWhiteSpace(request.Transaction.TaxOverrideCode))
{
request.RequestContext.Execute <NullResponse>(new CheckAccessServiceRequest(RetailOperation.OverrideTaxTransactionList));
}
}
async Task <CalculateTaxServiceResponse> CalculateTax(CalculateTaxServiceRequest cartItem)
{
try
{
var taxJarToken = await SecureStorage.GetAsync("taxjar_token");
var service = new CalculateTaxService(new Uri("https://api.taxjar.com/v2"), taxJarToken);
return(_cartItemResponse = await service.GetTaxCalculation(cartItem));
}
catch (Exception ex)
{
await _dialogService.DisplayAlertAsync("Service Error", ex.Message, "OK");
}
return(null);
}
public CalculateTaxServiceRequest GetTaxRequestByZip(string zip)
{
CalculateTaxServiceRequest tax = null;
if (zip == "92093")
{
tax = new CalculateTaxServiceRequest()
{
FromCountry = "US",
FromZip = "92093",
FromState = "CA",
FromCity = "La Jolla",
FromStreet = "9500 Gilman Drive",
ToCountry = "US",
ToZip = "90002",
ToState = "CA",
ToCity = "Los Angeles",
ToStreet = "1335 E 103rd St",
Amount = 15,
Shipping = 2,
NexusAddresses = new[] {
new NexusAddress {
Id = "Main Location",
Country = "US",
Zip = "92093",
State = "CA",
City = "La Jolla",
Street = "9500 Gilman Drive"
}
},
LineItems = new[] {
new LineItem {
Id = "1",
Quantity = "1",
ProductTaxCode = "20010",
UnitPrice = 15,
Discount = 0
}
}
};
}
else if (zip == "32561")
{
tax = new CalculateTaxServiceRequest()
{
FromCountry = "US",
FromZip = "32561",
FromState = "FL",
FromCity = "Pensacola",
FromStreet = "9500 Gilman Drive",
ToCountry = "US",
ToZip = "32561",
ToState = "FL",
ToCity = "Pensacola",
ToStreet = "1335 E 103rd St",
Amount = 15,
Shipping = 2,
NexusAddresses = new[] {
new NexusAddress {
Id = "Main Location",
Country = "US",
Zip = "32561",
State = "FL",
City = "Pensacola",
Street = "9500 Gilman Drive"
}
},
LineItems = new[] {
new LineItem {
Id = "1",
Quantity = "1",
ProductTaxCode = "20010",
UnitPrice = 15,
Discount = 0
}
}
};
}
else
{
//default
}
return(tax);
}
private void Prepare()
{
_cartItem = PopulateCart();
Amount = _cartItem.Amount;
}
public async Task <CalculateTaxServiceResponse> GetTaxCalculation(CalculateTaxServiceRequest req)
{
return(await _calculateTaxService.CalculateTax(req).ConfigureAwait(false));
}
