public static void Main()
{
var modifyPrice = new ModifyPrice();
var product = new Product("Phone", 500);
Execute(product, modifyPrice, new ProductCommand(product, PriceAction.Increase, 100));
Console.WriteLine(product);
}
private static void Execute(Product product, ModifyPrice modifyPrice, ICommand command)
{
modifyPrice.SetCommand(command);
modifyPrice.Invoke();
}