private async Task UpdateTicker(MarketTicker marketTicker, DateTime updateDate)
{
var frames = await framesManager.GetPriceHistory(0, marketTicker.Market, period);
var fromDate = DateTime.UtcNow.AddDays(-1);
var framesFor24Hours = frames.frames.TakeWhile(f => f.StartTime >= fromDate);
if (framesFor24Hours.Count() < 1)
{
return;
}
marketTicker.Open = framesFor24Hours.Last().Open;
marketTicker.Close = framesFor24Hours.First().Close;
marketTicker.High = framesFor24Hours.Select(f => f.High).Max();
marketTicker.Low = framesFor24Hours.Select(f => f.Low).Min();
marketTicker.BaseVolume = framesFor24Hours.Sum(f => f.BaseVolume);
marketTicker.CounterVolume = framesFor24Hours.Sum(f => f.CounterVolume);
marketTicker.UpdatedAt = updateDate;
}
public async Task Update()
{
try
{
var updateDate = DateTime.UtcNow;
await syncRoot.WaitAsync();
foreach (var market in markets)
{
if (!tickers.TryGetValue(market, out var currentTicker))
{
currentTicker = new MarketTicker(market);
tickers.Add(market, currentTicker);
}
await UpdateTicker(currentTicker, updateDate);
}
}
finally
{
syncRoot.Release();
}
}
