public async Task <IActionResult> BidHistoryHolder(string assetPair)
{
if (histHolder != null)
{
try
{
List <Price> retval = await Task.Run(() => histHolder.GetHistory(assetPair).ToList());
return(Ok(retval));
}
catch (Exception ex)
{
return(StatusCode(500, ex.Message));
}
}
else
{
return(StatusCode(500, "History Not Available"));
}
}
private async Task Initialize()
{
_grids = new Dictionary <string, OptionsGrid>();
_activities = new Dictionary <string, List <double> >();
Dictionary <string, DateTime> lastreport = new Dictionary <string, DateTime>();
foreach (var instrument in _settings.Instruments)
{
lastreport.Add(instrument.Name, DateTime.UtcNow);
var activity = await _activityManager.GetActivityByName(instrument.Name, instrument.ActivityFileName);
_activities.Add(instrument.Name, activity.ActivityArray.ToList());
var grid = new OptionsGrid(instrument.TimeToFirstOption, instrument.OptionLen, instrument.PriceSize, instrument.NPriceIndex, instrument.NTimeIndex,
instrument.MarginHit, instrument.MarginMiss, instrument.MaxPayoutCoeff, instrument.BookingFee, instrument.HasWeekend);
var history = _historyHolder.GetHistory(instrument.Name);
if (history != null && history.Length > 0)
{
var currentPrice = history.Last();
await _logger.WriteInfoAsync("Calculator.Initialize", null, $"Current Price[{instrument.Name}] Date: {currentPrice.Date.ToDateTimeString()}");
grid.InitiateGrid(_activities[instrument.Name], history.ToList(), instrument.Delta, instrument.MovingWindow, currentPrice, instrument.SmileVar);
_grids.Add(instrument.Name, grid);
Timer instrumentTimer = new Timer(instrument.Period);
instrumentTimer.Elapsed += (sender, args) =>
{
instrumentTimer.Stop();
if (isDisposing)
{
return;
}
var now = DateTime.UtcNow;
var newPrices = _priceCache.GetPrices(instrument.Name);
Price newPrice;
if (newPrices.Length > 0)
{
var lastPrice = newPrices.Last();
newPrice = new Price
{
Date = now,
Ask = lastPrice.Ask,
Bid = lastPrice.Bid
};
}
else
{
var lastHistoryPrice = _historyHolder.GetHistory(instrument.Name).Last();
newPrice = new Price
{
Date = now,
Ask = lastHistoryPrice.Ask,
Bid = lastHistoryPrice.Bid
};
}
_grids[instrument.Name].UpdateCoefficients(newPrices.ToList(), newPrice, instrument.SmileVar);
if (newPrices.Length > 0 && DateTime.UtcNow > lastreport[instrument.Name].AddMinutes(30))
{
string msg = $"{DateTime.UtcNow.ToTimeString()}[{instrument.Name}] Updated. New prices size:{newPrices.Length}. Current Price:{newPrice.Date.ToDateTimeString()}";
Console.WriteLine(msg);
_logger.WriteInfoAsync("Calculator.instrumentTimer.Elapsed", null, msg);
lastreport[instrument.Name] = DateTime.UtcNow;
}
instrumentTimer.Start();
};
instrumentTimer.Start();
}
}
StartSubscriber();
}