public static IEnumerable <QuickBookInvoice> MergeInvoices(IEnumerable <Invoice> invoices)
{
var lst = new List <QuickBookInvoice>();
var customers = invoices.Select((x) => x.CustomerName).Distinct();
foreach (var customer in customers)
{
var qbInv = new QuickBookInvoice()
{
CustomerName = customer
};
foreach (var inv in invoices.Where((x) => x.CustomerName == customer))
{
var itm = new QuickBookInvoiceItem()
{
NewspaperNumber = inv.NewspaperNumber, Price = inv.Price
};
qbInv.Items.Add(itm);
}
lst.Add(qbInv);
}
return(lst);
}
public QuickBookCreateInvoice(QuickBookInvoice invoice)
{
Invoice = invoice;
}