private async Task <StockPerformanceData> TryGetData(string symbol)
{
var stockData = await _stockDataService.GetLastWeekDailyStockData(symbol);
var spyData = await _stockDataService.GetLastWeekDailyStockData(SpySymbol);
if (!stockData.Any() || !spyData.Any())
{
return(StockPerformanceData.Invalid("No data."));
}
var orderedStockData = stockData.OrderBy(d => d.Date);
var data = new StockPerformanceData();
foreach (var stockDay in orderedStockData)
{
if (!spyData.Any(d => d.Date == stockDay.Date))
{
return(StockPerformanceData.Invalid($"Inconsistent {symbol} / SPY data."));
}
var spyDay = spyData.First(d => d.Date == stockDay.Date);
data.AddDay(stockDay, spyDay);
}
data.Calculate();
return(data);
}
public async Task <StockPerformanceData> GetData(string symbol)
{
try
{
return(await TryGetData(symbol));
}
catch (Exception ex)
{
return(StockPerformanceData.Invalid(ex.Message));
}
}
