private static Order GetOrder(ColaType colaType, int quantity)
{
Console.WriteLine(MessageLookup.ENTER_USERNAME);
string username = Console.ReadLine();
Console.WriteLine(MessageLookup.ENTER_PASSWORD);
string password = Console.ReadLine();
var colasOrdered = Colas.Take(quantity).ToList();
var totalColaCount = Colas.Count(c => c.ColaType == colaType);
//Contract.Requires<InvalidOperationException>(colasOrdered.Count < totalColaCount, ErrorMessageLookup.LOW_COLA);
if (colasOrdered.Count > totalColaCount)
{
throw new InvalidOperationException(ErrorMessageLookup.LOW_COLA);
}
var money = new Money(0);
foreach (var cola in colasOrdered)
{
money = money + cola.Price;
}
var order = new Order(Gateway.Pay(username, password, money), colasOrdered);
foreach (var item in colasOrdered)
{
Colas.Remove(item);
}
return(order);
}
public Cola(Money price, ColaType colaType)
{
this.ColaType = colaType;
this.Price = price;
}
