private List <YahooAPIResult> CreateYahooAPIResultList(string webResult)
{
var yahooResultList = new List <YahooAPIResult>();
//string fixedResponse = Regex.Replace(webResult, @"\r\n?|\n", string.Empty);
var lines = webResult.Split(new char[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
foreach (var line in lines)
{
var yahooResult = new YahooAPIResult(line);
if (yahooResult.PeRatioIsNA)
{
yahooResult.PeRatio = 0;
}
if (yahooResult.YieldIsNA)
{
yahooResult.Yield = 0;
}
if (yahooResult.DescriptionIsNA)
{
yahooResult.Description = "Unknown Ticker";
}
if (yahooResult.LastPriceIsNA)
{
yahooResult.LastPrice = 0;
}
yahooResult.MarketCap = yahooResult.MarketCap.Substring(0, yahooResult.MarketCap.Length - 1); //removed the amount suffix, e.g. "B"
yahooResultList.Add(yahooResult);
}
return(yahooResultList);
}
/// <summary>
/// Determine based on N/A results if a yahoo result is not known
/// Bid/Ask and BidSize/AskSize can be N/A after market hours
/// so they are not used in this determination.
/// </summary>
/// <param name="yahooResult"></param>
/// <returns></returns>
private bool IsSecurityUnknown(YahooAPIResult yahooResult)
{
if (yahooResult.Description == @"N/A")
{
return(true);
}
return(false);
}
private string DetermineIfStockOrFund(YahooAPIResult yahooResult)
{
if (yahooResult.MarketCapIsNA && yahooResult.PeRatioIsNA && yahooResult.Ticker.Length == 5)
{
return("Mutual Fund");
}
return("Stock");
}
private Security CreateNewSecurity(YahooAPIResult yahooResult)
{
var determinedType = DetermineIfStockOrFund(yahooResult);
if (determinedType == "Stock")
{
yahooResult.MarketCap = yahooResult.MarketCap.Substring(0, yahooResult.MarketCap.Length - 1);
var newStock = new Stock(yahooResult);
return(newStock);
}
if (determinedType == "Mutual Fund")
{
var newFund = new MutualFund(yahooResult);
return(newFund);
}
return(new Security("", "N/A", "Unknown Ticker", 0, 0.00));
}
/// <summary>
/// Lookup ticker and refer to securityDBList for info if needed
/// </summary>
/// <param name="tickerToLookUp"></param>
/// <param name="securityDBList"></param>
/// <returns></returns>
public Security GetSingleSecurity(string tickerToLookUp, List <Security> securityDBList)
{
Security securityBeingUpdated;
var yahooRequestUrl = _baseUrl.Replace("@", tickerToLookUp);
var response = GetWebResponse(yahooRequestUrl);
var yahooResult = new YahooAPIResult(response);
//Ticker is unknown, return blank security.
if (IsSecurityUnknown(yahooResult))
{
return(new Security("", @"N/A", @"Unknown Ticker", 0, 0));
}
//If security database doesn't know the ticker, add it, then return.
if (!securityDBList.Any(s => s.Ticker == tickerToLookUp))
{
Security newSecurity = CreateNewSecurity(yahooResult);
securityDBList.Add(newSecurity);
return(newSecurity);
}
//If security is known, update its pricing.
var resultSecurity = securityDBList.Find(s => s.Ticker == yahooResult.Ticker);
if (resultSecurity is Stock)
{
securityBeingUpdated = (Stock)securityDBList.Find(s => s.Ticker == yahooResult.Ticker);
}
else
{
securityBeingUpdated = (MutualFund)securityDBList.Find(s => s.Ticker == yahooResult.Ticker);
}
//If securityBeingUpdated is not null then it is known to the DB
//and its info should be updated.
if (securityBeingUpdated != null && resultSecurity is Stock)
{
//Fix properties is they came back as NA
if (yahooResult.PeRatioIsNA)
{
yahooResult.PeRatio = 0;
}
if (yahooResult.YieldIsNA)
{
yahooResult.Yield = 0;
}
if (yahooResult.LastPriceIsNA)
{
yahooResult.LastPrice = 0;
}
yahooResult.MarketCap = yahooResult.MarketCap.Substring(0, yahooResult.MarketCap.Length - 1);
var stockBeingUpdated = (Stock)securityBeingUpdated;
stockBeingUpdated.UpdateData(yahooResult);
return(stockBeingUpdated);
}
else if (securityBeingUpdated != null && resultSecurity is MutualFund)
{
var updatedFund = (MutualFund)securityDBList.Find(s => s.Ticker == yahooResult.Ticker);
updatedFund.UpdateData(yahooResult);
return(updatedFund);
}
else
{
throw new NotImplementedException();
}
}
/// <summary>
/// Determine based on N/A results if a yahoo result is not known
/// Bid/Ask and BidSize/AskSize can be N/A after market hours
/// so they are not used in this determination.
/// </summary>
/// <param name="yahooResult"></param>
/// <returns></returns>
private bool IsSecurityUnknown(YahooAPIResult yahooResult)
{
return(yahooResult.Description == @"N/A");
}
