/// <summary>
/// Gets the information about the message and sends this information to the class <c>CountdowmEventArgs</c>.
/// </summary>
/// <param name="sec">Waiting time in seconds.</param>
/// <param name="msg">Message that will be printed to subscribers after the event happen.</param>
public void SimulateCountdownClock(int sec, string msg)
{
if (sec <= 0)
{
throw new ArgumentException("Waiting time should be above zero!");
}
else
{
Thread.Sleep(sec * 1000);
var e = new CountdownEventArgs(sec, msg);
this.OnTimeEnded(this, e);
}
}
/// <summary>
/// Prints message for the subscriber after the event happening.
/// </summary>
/// <param name="sender">Event sender.</param>
/// <param name="e">Contains information about the event.</param>
public void PrintMessage(object sender, CountdownEventArgs e)
{
Console.WriteLine($"{this.Name}, countdown ended.");
Console.WriteLine(e.Message);
}
/// <summary>
/// Notificates the subscribers with the event happening.
/// </summary>
/// <param name="sender">Event sender.</param>
/// <param name="e">Contains information about the event.</param>
protected virtual void OnTimeEnded(object sender, CountdownEventArgs e)
{
_ = e ?? throw new ArgumentNullException(nameof(e));
this.TimeEnded?.Invoke(sender, e);
}