/// <summary>
/// Method CallEvent
/// Calls delegate passed.
/// </summary>
private void CallEvent(CatalogEventArgs e, CatalogStateHandler handler)
{
if ((handler != null) && (e != null))
{
handler(this, e);
}
}
/// <summary>
/// Method CountTypeHandler
/// A method that handles a car counting type event.
/// </summary>
public void CountTypeHandler(object sender, CatalogEventArgs e)
{
ConsoleColor color = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.DarkGray;
Console.WriteLine($"Number of brands : {(int)e.ResultOfOperation}\n");
Console.ForegroundColor = color;
}
/// <summary>
/// Method AverageCarPriceHandler
/// The method that handles the event of calculating the average price of cars.
/// </summary>
public void AveragePriceHandler(object sender, CatalogEventArgs e)
{
ConsoleColor color = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.DarkGray;
Console.WriteLine($"Average cost of the machine : {e.ResultOfOperation}\n");
Console.ForegroundColor = color;
}
/// <summary>
/// Method CountCarHandler
/// A method that handles a car counting event.
/// </summary>
public void CountMachineHandler(object sender, CatalogEventArgs e)
{
ConsoleColor color = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.DarkGray;
Console.WriteLine($"{sender.GetType()}\n");
Console.WriteLine($"Total number of machine : {(int)e.ResultOfOperation}\n");
Console.ForegroundColor = color;
}