private IPort CancelNotStartedCall(IPort portRejectedCall, RejectedCallEvent e)
{
IPort portWhichNeedToSendNotification;
string senderPhoneNumber;
string receiverPhoneNumber;
if (CallsWaitingToBeAnswered.ContainsKey(portRejectedCall))
{
portWhichNeedToSendNotification = CallsWaitingToBeAnswered[portRejectedCall];
senderPhoneNumber = portRejectedCall.PhoneNumber;
receiverPhoneNumber = portWhichNeedToSendNotification.PhoneNumber;
CallsWaitingToBeAnswered.Remove(portRejectedCall);
}
else
{
portWhichNeedToSendNotification = CallsWaitingToBeAnswered.FirstOrDefault(x => x.Value == portRejectedCall).Key;
senderPhoneNumber = portWhichNeedToSendNotification.PhoneNumber;
receiverPhoneNumber = portRejectedCall.PhoneNumber;
CallsWaitingToBeAnswered.Remove(portWhichNeedToSendNotification);
}
DisposeTimer(portRejectedCall);
OnNotifyBillingSystemAboutCallEnd(new UnansweredCallEvent(senderPhoneNumber, receiverPhoneNumber,
e.CallRejectionTime));
Logger.WriteLine(
$"{portRejectedCall.PhoneNumber} rejected call from {portWhichNeedToSendNotification.PhoneNumber}");
return(portWhichNeedToSendNotification);
}
private Timer SetTimer(IPort senderPort, IPort receiverPort)
{
var timer = new Timer(CancellationTime);
timer.Elapsed += (sender, eventArgs) =>
{
Logger.WriteLine($"{receiverPort.PhoneNumber} Did not answered call from {senderPort.PhoneNumber}");
OnNotifyPortOfFailure(
new FailureEvent(receiverPort.PhoneNumber, FailureType.AbonentIsNotResponding),
senderPort);
OnNotifyPortOfFailure(
new FailureEvent(receiverPort.PhoneNumber, FailureType.AbonentIsNotResponding),
receiverPort);
CallsWaitingToBeAnswered.Remove(senderPort);
DisposeTimer(senderPort);
Logger.WriteLine("Base Station Notifies Billing System about Failed Call " +
$"from {senderPort.PhoneNumber} to {receiverPort.PhoneNumber}");
OnNotifyBillingSystemAboutCallEnd(new UnansweredCallEvent(senderPort.PhoneNumber,
receiverPort.PhoneNumber, DateTime.Now));
}; // creating logic wich will track time and perform certain actions if time expires
timer.AutoReset = false; // switch off timer reset
timer.Enabled = true; // enable set timer
return(timer);
}
public void AnswerCall(object sender, AnsweredCallEvent e)
{
if (!(sender is IPort receiverPort))
{
return;
}
var senderPort = CallsWaitingToBeAnswered.FirstOrDefault(x => x.Value == receiverPort).Key;
if (senderPort == null)
{
return;
}
DisposeTimer(senderPort); // dispose timer because call was answered
CallsWaitingToBeAnswered.Remove(senderPort); // remove information about call from this specified list
CallsInProgress.Add(new HeldCallEvent(senderPort.PhoneNumber, receiverPort.PhoneNumber)
{
CallStartTime = e.CallStartTime
}); //
Logger.WriteLine($"{receiverPort.PhoneNumber} answered call from {senderPort.PhoneNumber}");
}