static void Main(string[] args)
{
var modifyPrice = new ModifyPrice();
var product = new Product("Phone", 500);
Execute(modifyPrice, new ProductCommand(product, PriceAction.Increase, 50));
Execute(modifyPrice, new ProductCommand(product, PriceAction.Increase, 100));
Execute(modifyPrice, new ProductCommand(product, PriceAction.Decrease, 50));
Console.WriteLine(product);
}
private static void Execute(ModifyPrice modifyPrice, ICommand productCommand)
{
modifyPrice.SetCommand(productCommand);
modifyPrice.Invoke();
}