/// <summary>
/// Executes the workflow associated with retrieving list of supported channel currencies.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>The response.</returns>
protected override GetChannelCurrencyAmountResponse Process(GetChannelCurrencyAmountRequest request)
{
ThrowIf.Null(request, "request");
ThrowIf.Null(request.CurrenciesToConvert, "request.CurrencyToConvert");
if (!request.CurrenciesToConvert.Any())
{
throw new DataValidationException(DataValidationErrors.Microsoft_Dynamics_Commerce_Runtime_CurrencyNotFound);
}
GetChannelCurrencyAmountResponse response;
if (!request.IsTotalToBeCalculated)
{
CurrencyRequest currencyToConvert = request.CurrenciesToConvert.Single();
// Set default store currency if the currency Iso code is not set.
if (string.IsNullOrWhiteSpace(currencyToConvert.CurrencyCode))
{
var channelConfiguration = this.Context.GetChannelConfiguration();
currencyToConvert.CurrencyCode = channelConfiguration.Currency;
}
var serviceRequest = new GetChannelCurrencyServiceRequest(currencyToConvert.CurrencyCode, currencyToConvert.AmountToConvert, request.QueryResultSettings);
var serviceResponse = this.Context.Execute <GetChannelCurrencyServiceResponse>(serviceRequest);
response = new GetChannelCurrencyAmountResponse(serviceResponse.ChannelCurrencies);
}
else
{
var serviceRequest = new CalculateTotalAmountServiceRequest(request.CurrenciesToConvert);
var serviceResponse = this.Context.Execute <CalculateTotalAmountServiceResponse>(serviceRequest);
response = new GetChannelCurrencyAmountResponse(new ReadOnlyCollection <CurrencyAmount>(new[] { serviceResponse.TotalCurrencyAmount }).AsPagedResult());
}
return(response);
}
/// <summary>
/// Calculate the total currency amount after converting to channel currency for the given list of currencies.
/// </summary>
/// <param name="request">The list of currencies that requires to be summed.</param>
/// <returns>Returns the response that contains the sum of currencies amount.</returns>
private static CalculateTotalAmountServiceResponse CalculateTotalCurrencyAmount(CalculateTotalAmountServiceRequest request)
{
var channelConfiguration = request.RequestContext.GetChannelConfiguration();
decimal totalAmount = 0m;
foreach (var currency in request.CurrenciesToConvert)
{
var getCurrencyValueRequest = new GetCurrencyValueServiceRequest(currency.CurrencyCode, channelConfiguration.Currency, currency.AmountToConvert);
GetCurrencyValueServiceResponse response = request.RequestContext.Execute <GetCurrencyValueServiceResponse>(getCurrencyValueRequest);
totalAmount += response.RoundedConvertedAmount;
}
return(new CalculateTotalAmountServiceResponse(new CurrencyAmount {
RoundedConvertedAmount = totalAmount, CurrencyCode = channelConfiguration.Currency
}));
}
