private void AdjustPeriodsForUnderPayment(int variationPointerIndex,
decimal latestPeriodAmount,
IExistingProfilePeriod[] orderedExistingProfilePeriods,
IProfilePeriod[] orderRefreshProfilePeriods)
{
decimal amountAlreadyPaid = orderedExistingProfilePeriods.Take(variationPointerIndex).Sum(_ => _.GetProfileValue());
decimal amountThatShouldHaveBeenPaid = latestPeriodAmount * variationPointerIndex;
decimal amountUnderPaid = Math.Abs(amountAlreadyPaid - amountThatShouldHaveBeenPaid);
IProfilePeriod periodToAdjust = orderRefreshProfilePeriods[variationPointerIndex];
periodToAdjust.SetProfiledValue(periodToAdjust.GetProfileValue() + amountUnderPaid);
}
private bool AdjustingPeriodsForOverPaymentLeavesRemainder(int variationPointerIndex,
decimal latestPeriodAmount,
IExistingProfilePeriod[] orderedSnapShotProfilePeriods,
IProfilePeriod[] orderRefreshProfilePeriods,
out decimal remainingOverPayment)
{
decimal amountAlreadyPaid = orderedSnapShotProfilePeriods.Take(variationPointerIndex).Sum(_ => _.GetProfileValue());
decimal amountThatShouldHaveBeenPaid = latestPeriodAmount * (variationPointerIndex);
remainingOverPayment = amountAlreadyPaid - amountThatShouldHaveBeenPaid;
for (int profilePeriod = variationPointerIndex; profilePeriod < orderRefreshProfilePeriods.Length; profilePeriod++)
{
if (remainingOverPayment <= 0)
{
break;
}
IProfilePeriod periodToAdjust = orderRefreshProfilePeriods[profilePeriod];
decimal adjustedProfileValue = periodToAdjust.GetProfileValue() - remainingOverPayment;
if (adjustedProfileValue < 0)
{
remainingOverPayment = Math.Abs(adjustedProfileValue);
adjustedProfileValue = 0;
}
else
{
remainingOverPayment = 0;
}
periodToAdjust.SetProfiledValue(adjustedProfileValue);
}
return(remainingOverPayment != 0);
}