public void Update(string message, long processedItems, long totalItems)
{
var secondsSinceLastAverage = (DateTime.Now - _lastProgressEvent.Key).TotalSeconds;
if (secondsSinceLastAverage > 2)
{
if (_lastProgressEvent.Key != DateTime.MinValue)
{
var itemsSinceLastProgress = processedItems - _lastProgressEvent.Value;
var itemsPerSecond = itemsSinceLastProgress / secondsSinceLastAverage;
_perSecondAverages.Add(itemsPerSecond);
if (_perSecondAverages.Count() > 20)
{
_perSecondAverages.RemoveAt(0);
}
}
_lastProgressEvent = new KeyValuePair <DateTime, double>(DateTime.Now, processedItems);
}
var itemsRemaining = totalItems - processedItems;
var timeEstimate = _perSecondAverages.Count() < 1 ? "Estimating time left" :
string.Format("{0} left", TimeSpan
.FromSeconds(itemsRemaining / WeightedAverage(_perSecondAverages))
.GetHumanized());
var percentDone = (processedItems * 100) / totalItems;
lock (_lock)
{
ConsoleProgressBar.Render(percentDone, string.Format("{0} ({1}% of {2:0.0} {3}). {4}",
message, percentDone, _displayUnitConversion(totalItems), _displayUnit, timeEstimate));
}
}
