public decimal GetExchangeRate(CurrencyPair currencyPair)
{
if (currencyPair.HaveSameCurrency())
{
return(1);
}
return(_exchangeRateProvider.GetExchangeRate(currencyPair.FromCurrency, currencyPair.ToCurrency));
}
public decimal Convert(decimal amount, CurrencyPair currencyPair)
{
if (currencyPair.HaveSameCurrency())
{
return(amount);
}
if (amount != 0)
{
var exchangeRate = GetExchangeRate(currencyPair);
return(amount * exchangeRate);
}
return(amount);
}