public static RatesResponse MapToResponse(this RatesResultModel resultModel)
{
return(new RatesResponse
{
AverageRate = resultModel.AverageRate,
DateOfMaxRate = resultModel.DateOfMaxRate,
DateOfMinRate = resultModel.DateOfMinRate,
MaxRate = resultModel.MaxRate,
MinRate = resultModel.MinRate
});
}
public RatesResultModel FilterAndCompute(RatesInputModel input)
{
var result = new RatesResultModel
{
MaxRate = (double)0,
MinRate = Double.MaxValue
};
GetHistoryByCurrency(input.BaseCurrency);
double ratesSum = 0;
int existingDates = 0;
foreach (var date in input.Dates)
{
if (!_rates.ContainsKey(input.BaseCurrency))
{
continue;
}
if (_rates[input.BaseCurrency].Rates.TryGetValue(date, out var currencies))
{
existingDates++;
if (currencies.ContainsKey(input.TargetCurrency))
{
if (currencies.TryGetValue(input.TargetCurrency, out var rate))
{
if (result.MaxRate < rate)
{
result.MaxRate = rate;
result.DateOfMaxRate = date;
}
if (result.MinRate > rate)
{
result.MinRate = rate;
result.DateOfMinRate = date;
}
ratesSum += rate;
}
}
}
}
if (existingDates > 0)
{
result.AverageRate = ratesSum / existingDates;
}
return(result);
}
