public List <(byte deliveryPeriod, RequiredPayment payment)> RefundLearningAim(List <Payment> historicPayments)
{
return(historicPayments
.GroupBy(payment => payment.DeliveryPeriod)
.SelectMany(group =>
{
var historicPaymentsPerPeriod = group.ToList();
var payments = refundService.GetRefund(paymentDueProcessor.CalculateRequiredPaymentAmount(0, historicPaymentsPerPeriod), historicPaymentsPerPeriod);
return payments.Select(payment => (group.Key, payment));
})
.ToList());
}
public List <RequiredPayment> GetRequiredPayments(Earning earning, List <Payment> paymentHistory)
{
var result = new List <RequiredPayment>();
if (earning.EarningType != EarningType.Incentive && earning.SfaContributionPercentage.HasValue)
{
result.AddRange(RefundPaymentsWithDifferentSfaContribution(earning.SfaContributionPercentage.Value, paymentHistory));
}
var validPaymentHistory = paymentHistory
.Where(p => earning.EarningType == EarningType.Incentive ||
!earning.SfaContributionPercentage.HasValue ||
p.SfaContributionPercentage == earning.SfaContributionPercentage)
.ToList();
var amount = paymentsDue.CalculateRequiredPaymentAmount(earning.Amount, validPaymentHistory);
if (amount < 0)
{
result.AddRange(refundService.GetRefund(amount, validPaymentHistory));
return(result);
}
if (amount == 0)
{
return(result);
}
if (!earning.SfaContributionPercentage.HasValue)
{
throw new ArgumentException("Trying to use a null SFA Contribution % for a positive earning");
}
result.Add(new RequiredPayment
{
Amount = amount,
EarningType = earning.EarningType,
SfaContributionPercentage = earning.SfaContributionPercentage.Value,
PriceEpisodeIdentifier = earning.PriceEpisodeIdentifier,
AccountId = earning.AccountId,
TransferSenderAccountId = earning.TransferSenderAccountId
});
return(result);
}