/// <summary>
/// Gets tax total
/// </summary>
/// <param name="taxTotalRequest">Tax total request</param>
/// <returns>
/// A task that represents the asynchronous operation
/// The task result contains the ax total
/// </returns>
public async Task <TaxTotalResult> GetTaxTotalAsync(TaxTotalRequest taxTotalRequest)
{
//cache tax total within the request
var key = $"nop.TaxTotal-{taxTotalRequest.UsePaymentMethodAdditionalFee}";
if (!(_actionContextAccessor.ActionContext.HttpContext.Items.TryGetValue(key, out var result) &&
result is TaxTotalResult taxTotalResult))
{
//create a transaction
var transaction = await _avalaraTaxManager.CreateTaxTotalTransactionAsync(taxTotalRequest);
if (transaction?.totalTax == null)
{
return new TaxTotalResult {
Errors = new List <string> {
"No response from the service"
}
}
}
;
//and get tax details
taxTotalResult = new TaxTotalResult {
TaxTotal = transaction.totalTax.Value
};
transaction.summary?
.Where(summary => summary.rate.HasValue && summary.tax.HasValue)
.Select(summary => new { Rate = summary.rate.Value * 100, Value = summary.tax.Value })
.ToList().ForEach(taxRate =>
{
if (taxTotalResult.TaxRates.ContainsKey(taxRate.Rate))
{
taxTotalResult.TaxRates[taxRate.Rate] += taxRate.Value;
}
else
{
taxTotalResult.TaxRates.Add(taxRate.Rate, taxRate.Value);
}
});
_actionContextAccessor.ActionContext.HttpContext.Items.TryAdd(key, taxTotalResult);
}
return(taxTotalResult);
}
