private static DownloaderResult Download(Downloader downloader, Uri url, ICredentials credentials)
{
var progressState = new ProgresState {
LastPercent = -1.0,
LastRemainingTimeString = null,
LastBytesPerSecondString = null
};
var result = downloader.Download(url, new DownloaderOptions {
Credentials = credentials,
ReportProgress = p => ReportDownloadProgress(p, progressState)
});
SetTaskBarProgress(TaskbarProgressBarState.NoProgress);
return result;
}
private static void ReportDownloadProgress(DownloaderProgress progress, ProgresState progressState)
{
if (progress.BytesTotal <= 0) { // length is unknown
SetTaskBarProgress(TaskbarProgressBarState.Indeterminate);
return;
}
var indent = ConsoleIndent.Length;
var percent = 100 * (double)(progress.BytesDownloadedBefore + progress.BytesDownloaded) / progress.BytesTotal;
if (Math.Abs(percent - progressState.LastPercent) >= 0.1) {
Console.SetCursorPosition(indent, Console.CursorTop);
Console.Write("{0,4:F1}% |", percent);
progressState.LastPercent = percent;
SetTaskBarProgress(TaskbarProgressBarState.Normal);
SetTaskBarProgress(percent);
}
indent += "99.9% | ".Length;
var bps = progress.BytesDownloaded/progress.TimeElapsed.TotalSeconds;
var bpsString = FormatBytesPerSecond(bps);
if (bpsString != progressState.LastBytesPerSecondString) {
Console.SetCursorPosition(indent, Console.CursorTop);
Console.Write(bpsString.PadRight("999 TB/s".Length));
Console.Write(" |");
progressState.LastBytesPerSecondString = bpsString;
}
indent += "999 TB/s | ".Length;
var msRemaining = progress.BytesRemaining * (progress.TimeElapsed.TotalMilliseconds / progress.BytesDownloaded);
var timeRemaining = TimeSpan.FromMilliseconds(msRemaining);
var timeRemainingString = FormatRemainingTime(timeRemaining);
if (timeRemainingString != progressState.LastRemainingTimeString) {
Console.SetCursorPosition(indent, Console.CursorTop);
Console.Write("Remaining: {0}.".PadRight(40), timeRemainingString);
progressState.LastRemainingTimeString = timeRemainingString;
Console.Title = string.Format("{0}: {1}", Regex.Replace(timeRemainingString, @"(\d)\s(\w)\w*", "$1$2"), progress.File.Name);
}
}
