public void Approve(Invoice invoice)
{
decimal discount = _discounters
.Aggregate(0m, (previous, discounter)
=> discounter.Calculate(invoice) + previous);
invoice.ApprovedAmount = invoice.Total - discount;
_emailSender.Send("Approved " + invoice.ApprovedAmount + " for " + invoice.Customer);
}
static void Main(string[] args)
{
var container = new Container(cfg =>
{
cfg.Scan(scanner =>
{
scanner.AddAllTypesOf<IDiscountApplier>();
scanner.AssemblyContainingType<Program>();
scanner.WithDefaultConventions();
});
cfg.For<IInvoiceApprover>()
.DecorateAllWith<LoggingApprover>();
});
var approver = container.GetInstance<IInvoiceApprover>();
var invoice = new Invoice
{
Total = 2000m,
Customer = "Joe",
State = "KC"
};
approver.Approve(invoice);
}
public decimal Calculate(Invoice invoice)
{
if (invoice.Total > 1000m)
{
return 50m;
}
return 0m;
}
public void Approve(Invoice invoice)
{
Console.WriteLine("Starting approval for " + invoice.Customer);
_inner.Approve(invoice);
Console.WriteLine("Finished approval for " + invoice.Customer);
}
public decimal Calculate(Invoice invoice)
{
if (invoice.State == "KC")
{
return invoice.Total * 0.1m;
}
return 0m;
}
public decimal Calculate(Invoice invoice)
{
if (invoice.Customer == "Joe")
{
return 10m;
}
return 0m;
}