private async Task CatchupAsync(Candle lastDbCandle)
{
var maxPoints = _exchange.ExchangeConfig.UserConfig.MaxDataPoints;
var now = _exchange.Now;
var dataPoints = lastDbCandle != null
? ExchangeUtils.GetDataPointsFromTimeSpan(_period, now - lastDbCandle.Timestamp.ToUniversalTime())
: maxPoints;
if (dataPoints <= 0)
{
return;
}
if (dataPoints > maxPoints)
{
dataPoints = maxPoints;
}
var candles = await _exchange.GetCandlesAsync(_instrument, _period, ExchangeUtils.GetTimeOffsetFromDataPoints(_period, now, dataPoints), now);
if (candles != null)
{
await InsertCandlesAsync(candles.ToArray());
}
var lastEntryLogText = (lastDbCandle != null ? $"was last seen at {lastDbCandle.Timestamp.ToUniversalTime()}" : "has no pevious records");
_logger.Log(LogLevel.Info, $"{_exchangeName} {_instrument} {_period} {lastEntryLogText}");
var syncStatusText = (dataPoints > 0 ? $"{dataPoints} data points behind" : "up to date");
_logger.Log(LogLevel.Info, $"{_exchangeName} {_instrument} {_period} is {syncStatusText}");
}
private void ResetCurrentCandle(CandleDto latest)
{
CurrentCandle.Open = latest.Close;
CurrentCandle.High = latest.Close;
CurrentCandle.Low = latest.Close;
CurrentCandle.Trades = 0;
CurrentCandle.Volume = 0;
CurrentCandle.Timestamp = ExchangeUtils.GetTimeOffsetFromDataPoints(latest.Period, CurrentCandle.Timestamp, -1);
}
