IReadOnlyDictionary <CurrencyCode, SumState> CalculateAssetSums(
AssetISIN isin, IReadOnlyCollection <VirtualAsset> allAssets, DateTimeOffset date)
{
var assets = allAssets
.Where(a => a.Isin == isin)
.ToArray();
if (assets.Length == 0)
{
return(new Dictionary <CurrencyCode, SumState>());
}
var baseCurrency = assets[0].Currency;
var baseRealSum = assets.Sum(a => a.RealSum);
var baseVirtualSum = assets.Sum(a => a.VirtualSum);
return(_currencyConfig.GetAll()
.ToDictionary(
c => c,
c => {
if (c == baseCurrency)
{
return new SumState(baseRealSum, baseVirtualSum);
}
var realSum = _exchangeManager.Exchange(baseCurrency, c, baseRealSum, date);
var virtualSum = _exchangeManager.Exchange(baseCurrency, c, baseRealSum, date);
return new SumState(realSum, virtualSum);
}
));
}