/// <summary>
/// Calculates the price for the rental period after the "flat period" - period with a fixed price
/// independent on the number of days in the period. The price for the "trailing days" depends on the
/// day count.
/// </summary>
/// <param name="rentalDays">the whole duration of the rental period in days,</param>
/// <param name="terms">the set of rental terms for the chosen video title type.</param>
/// <returns>The price for the "trailing days" of the rental period.</returns>
private decimal GetTrailingDaysPrice(int rentalDays, RentalTerms terms)
{
if (rentalDays > terms.FlatPeriodDays)
{
return((rentalDays - terms.FlatPeriodDays) * terms.TrailingFee);
}
return(0);
}
private static int GetPriceInPoints(int rentalDays, RentalTerms terms)
{
return(rentalDays * terms.RentalDayPriceInPoints);
}
private bool IsPaymentByPointsPossible(int rentalDays, int bonusPoints, RentalTerms terms)
{
int priceInPoints = GetPriceInPoints(rentalDays, terms);
return(terms.IsPaymentByPointsAllowed && (bonusPoints >= priceInPoints));
}
