private void DownloadUpdates()
{
try
{
var updates = _telegramMethods.GetUpdates(LastUpdateId + 1, null, null, AllowedUpdates).Result;
if (updates.Count == 0)
{
return;
}
updates.ForEach(update =>
{
Update = update;
LastUpdateId = update.UpdateId;
UpdatesArrivedEvent?.Invoke(this);
});
}
catch (TelegramMethodsException ex)
{
var message = "An error occurred while receiving the update";
UpdatesTracingStoppedEvent?.Invoke(this, new BotRequestErrorEventArgs(message, ex));
}
finally
{
DownloadBotRequestsSemaphore.Release();
}
}
private void RequestMonitorTimer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
//если образовалась очередь, выдать ошибку задержки ответа сервера
if (!DownloadBotRequestsSemaphore.WaitOne(0))
{
var message = "Telegram server response timeout. Can't download content.";
_requestMonitorTimer.Stop();
UpdatesTracingStoppedEvent?.Invoke(this, new BotRequestErrorEventArgs(message));
return;
}
DownloadUpdates();
}
/// <summary>
/// Stops monitoring of new updates from Telegram server.
/// </summary>
/// <param name="triggerStoppedEvent"></param>
/// <param name="message"></param>
public void Stop(bool triggerStoppedEvent = false, string message = null)
{
_requestMonitorTimer.Stop();
if (!triggerStoppedEvent)
{
return;
}
if (message == null)
{
message = "Monitoring of new updates was stopped manually";
}
UpdatesTracingStoppedEvent?.Invoke(this, new BotRequestErrorEventArgs(message));
}