public void AddChocolate()
        {
            Chocolate milkaChocolate = new ChocolateBuilder()
                                       .SetChocolateType(ChocolateType.Milk)
                                       .SetName("Spartak")
                                       .SetManufacturerName("Spartak")
                                       .SetNutritionalValue(10, 20, 30)
                                       .SetPricePerKilogram(100)
                                       .SetStartDate(new DateTime(2020, 3, 4))
                                       .SetSugarContent(50)
                                       .SetWeight(200)
                                       .Build();

            Gift.Add(milkaChocolate);
        }
        private static HotDrinkBuilder GetBuilderForSelectedHotDrink(string selectedDrink)
        {
            HotDrinkBuilder builder = null;

            if (selectedDrink == DrinksNames.LemonTea)
            {
                builder = new LemonTeaBuilder();
            }
            else if (selectedDrink == DrinksNames.Coffee)
            {
                builder = new CoffeeBuilder();
            }
            else if (selectedDrink == DrinksNames.Chocolate)
            {
                builder = new ChocolateBuilder();
            }

            return(builder);
        }