public Invoice CreateInvoice(InvoiceForCreationDto inputInvoice)
{
// determine current New Zealand time
TimeZoneInfo tz = TimeZoneInfo.FindSystemTimeZoneById("New Zealand Standard Time");
DateTime localNow = TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, tz);
// copy information provided by the client
Invoice invoice = mapper.Map <Invoice>(inputInvoice);
invoice.InvoiceNumber = GenerateOrganisationInvoiceNumber(inputInvoice.LoginId);
invoice.CharitiesNumber = options.CharitiesNumber;
invoice.GstNumber = options.GSTNumber;
invoice.GstRate = options.GSTRate;
invoice.DateCreated = localNow;
invoice.Status = InvoiceStatus.Draft;
invoice.Creator = context.User.FirstOrDefault(u => u.Email == inputInvoice.LoginId);
Validate(invoice);
context.Add <Invoice>(invoice);
int count = context.SaveChanges();
if (count > 0)
{
return(invoice);
}
else
{
return(null);
}
}