static void Main(string[] args)
{
Buy(new MoneyAmount(12, "EUR"),
new MoneyAmount(10, "EUR"));
Buy(new MoneyAmount(7, "EUR"),
new MoneyAmount(10, "EUR"));
IsHappyHour = true;
Buy(new MoneyAmount(7, "EUR"),
new MoneyAmount(10, "EUR"));
var x = new MoneyAmount(2, "EUR");
var y = new MoneyAmount(4, "EUR");
if (x.Equals(y))
{
Console.WriteLine("Are equal");
}
if (x.Scale(2).Equals(y))
{
Console.WriteLine("Equal after scaling");
}
HashSet <MoneyAmount> set = new HashSet <MoneyAmount> {
x.Scale(2), y
};
Console.WriteLine(set.Count);
Console.ReadLine();
}
static MoneyAmount Reserve(MoneyAmount cost)
{
decimal factor = 1.0M;
if (IsHappyHour)
{
factor = 0.5M;
}
Console.WriteLine($"Reserving and item that costs {cost}");
return(cost.Scale(factor));
}
private static void Buy(MoneyAmount wallet, MoneyAmount cost)
{
var enoughMoney = wallet.Amount > cost.Amount;
var finalCost = Reserve(cost);
var finalEnough = wallet.Amount > finalCost.Amount;
if (enoughMoney)
{
Console.WriteLine($"You will pay {cost} from your total of {wallet}");
}
else if (finalEnough)
{
Console.WriteLine($"This time, you will pay {finalCost} from your total of {wallet}");
}
else
{
Console.WriteLine($"You cannot pay {cost} from your total of {wallet}");
}
}