private (decimal?NInSystem, decimal?highestPriceInSystem, decimal?lowestPriceInSystem) DailyPriceCalculationSystem(BuySellStrategyType type, IReadOnlyList <IStockPriceHistory> recentStockPriceHistory, decimal todayATR, IStockQuoteFromDataSource todayPriceDataFromDataSource)
{
decimal[] lowPrices = null;
decimal[] highPrices = null;
decimal?[] ATRs = null;
decimal? lowestPrice = null;
decimal? highestPrice = null;
decimal? todayN = null;
if (recentStockPriceHistory.Count >= type.GetSellIntValue())
{
lowPrices = recentStockPriceHistory.Take(type.GetSellIntValue()).Select(a => a.LowPrice).ToArray();
ATRs = recentStockPriceHistory.Take(type.GetSellIntValue() - 1).Select(a => a.ATR).ToArray();
}
if (recentStockPriceHistory.Count() >= type.GetBuyIntValue())
{
highPrices = recentStockPriceHistory.Take(type.GetBuyIntValue()).Select(a => a.HighPrice).ToArray();
ATRs = recentStockPriceHistory.Take(type.GetBuyIntValue() - 1).Select(a => a.ATR).ToArray();
}
if (lowPrices != null)
{
lowestPrice = _baseData.CalculateLowestPrice(lowPrices, todayPriceDataFromDataSource.LowPrice);
}
if (highPrices != null)
{
highestPrice = _baseData.CalculateHighestPrice(highPrices, todayPriceDataFromDataSource.HighPrice);
}
if (ATRs != null)
{
List <decimal> validATRList = new List <decimal>();
foreach (decimal?item in ATRs)
{
if (item.HasValue)
{
validATRList.Add(item.Value);
}
}
if (validATRList.Count() == type.GetBuyIntValue() - 1)
{
todayN = _baseData.CalculateTodayN(validATRList.ToArray(), todayATR);
}
}
return(todayN, highestPrice, lowestPrice);
}