public static BusinessRule <ShoppingCart> CanSetShippingAddress()
{
return(new BusinessRule <ShoppingCart>(
"Cannot set shipping address!",
rule =>
{
rule.AddCheck(ShoppingCartSpecifications.IsActive, "Shopping cart is deactivated!");
rule.AddCheck(ShoppingCartSpecifications.IsInStatus(ShoppingCartStatus.Open), "Shipping address cannot be set anymore!");
}));
}
public static BusinessRule <ShoppingCart> CanCancel()
{
return(new BusinessRule <ShoppingCart>(
"Shopping cart cannot be cancelled!",
rule =>
{
rule.AddCheck(ShoppingCartSpecifications.IsActive, "Shopping cart is deactivated!");
rule.AddCheck(ShoppingCartSpecifications.IsInStatus(ShoppingCartStatus.Cancelled), "Shopping cart is already cancelled!");
rule.AddCheck(
ShoppingCartSpecifications.IsInStatus(ShoppingCartStatus.Ordered)
.Or(ShoppingCartSpecifications.IsInStatus(ShoppingCartStatus.Open)),
$"Cannot cancel shopping cart in current status!");
}));
}