public Voucher CalculateVouchers(int workingDaysThisMonth, IEnumerable<string> outOfOfficeOperations)
{
var daysEligibleForVouchers = Math.Min(workingDaysThisMonth, TimeSheetEntries.DaysOnPayroll());
var daysOutOfOffice = TimeSheetEntries.DaysOutOfOffice(outOfOfficeOperations);
var daysOnTrips = BusinessTrips.DaysOnTrips();
return new Voucher
(
this,
daysEligibleForVouchers - daysOutOfOffice - daysOnTrips
);
}
