private static void Main()
{
try
{
//// Create a customer object.
var p1 = new[] { new Purchase(3342), new Purchase(5648), new Purchase(7577) };
var customer1 = new Customer("Oleg", 1111, p1);
WriteJson(customer1);
//// Change a property by creating a new object.
////customer1.CustomerNumber = 555;
////customer1 = new Customer(customer1.Name, 555, customer1.Purchases);
//// Use With pattern.
customer1 = customer1
.WithCustomerNumber(555);
WriteJson(customer1);
//// Modify a immutable list.
var customer2 = customer1
.WithPurchases(customer1.Purchases.Add(new Purchase(9000)));
WriteJson(customer2);
//// Replace an item inside a immutable list.
var p3 = customer2.Purchases[3];
var customer3 = customer2
.WithPurchases(customer2.Purchases.Replace(p3, p3.WithPurchaseId(9999)));
WriteJson(customer3);
// Violate requirement at object creation.
var customer4 = new Customer(null, -2, null);
}
catch (ObjectRequirementException ex)
{
Console.WriteLine(ex.ToString());
}
finally
{
Console.ReadKey();
}
}
