public decimal TryConvertToPrimaryCurrency(string sourceCurrencySymbol, decimal sourcePrice, Action <ICurrencyConversion> conversionCallback)
{
using (var tx = m_database.OpenTransaction())
{
var sourceCurrency = m_currencyRepository.GetCurrency(sourceCurrencySymbol);
if (sourceCurrency == null)
{
throw new InvalidOperationException($"Neznamy symbol meny '{sourceCurrencySymbol}'");
}
if (sourceCurrency.IsProjectMainCurrency)
{
tx.Commit();
return(sourcePrice);
}
var targetCurrency = m_currencyRepository.GetAllCurrencies()
.FirstOrDefault(c => c.IsProjectMainCurrency);
if (targetCurrency == null)
{
throw new InvalidOperationException("Není nastavena domácí měna projektu");
}
var rate = m_currencyRepository.GetCurrencyRate(sourceCurrency, targetCurrency);
if (rate == null)
{
throw new InvalidOperationException($"Není dostupná konverze {sourceCurrency.Symbol} -> {targetCurrency.Symbol}");
}
var conversion = m_currencyRepository.CreateCurrencyConversion(rate, sourcePrice);
if (conversion == null)
{
throw new InvalidOperationException("Konverze měny selhala");
}
conversionCallback(conversion);
tx.Commit();
return(conversion.TargetValue);
}
}