async Task Stage1CertFee(IList <BillLineItem> container, TransactionCode code,
BillRequestLineItem item)
{
var duration = item.SubScheme == SubScheme.ShortTerm
? (item.ExpiresOn - item.StartsFrom).Days + 1
: BillingUtils.CalculateNoOfMonths(item.StartsFrom.Date, item.ExpiresOn.Date);
var factor = await _context.Stage1Factor();
// Full payment for stage 1
if (item.Scheme == Scheme.Endorsement ||
item.SubScheme == SubScheme.Canteen ||
item.SubScheme == SubScheme.ShortTerm)
{
factor = 1M;
}
// Short term billed per 7 days
else if (item.SubScheme == SubScheme.ShortTerm)
{
factor = Math.Ceiling(duration / 7M);
}
else
{
factor = Math.Min(factor, duration / 12M);
}
// For case where the pro-rated value is less than stage 1 expected factor.
factor = Math.Min(duration / 12, factor);
var unitPrice = code.GetLatestPriceAmount();
var gst = await _context.GST();
var qty = factor;
var fee = qty * unitPrice;
var gstAmount = fee * gst;
var section = BillingUtils.LineItemSection(BillType.Stage1);
var yearPrefix = duration > 12 ? " - Year 1" : "";
string prorateText = duration < 12 ? $" ({duration} of 12 months)" : "";
container.Add(new BillLineItem
{
SectionIndex = section.Item1,
Section = section.Item2,
Qty = qty,
CodeID = code.ID,
Code = code.Code,
Descr = $"{code.Text}{yearPrefix}{prorateText}",
UnitPrice = code.GetLatestPriceAmount(),
Amount = decimal.Round(fee, 2),
GSTAmount = decimal.Round(gstAmount, 2),
GST = gst,
WillRecord = true
});
}