public async Task <double> CalculateTotalCostAsync(GetTotalCostArgs request, CancellationToken cancellationToken = default)
{
var apartment = await context.Apartments
.SingleOrDefaultAsync(a => a.Id == request.ApartmentId && !a.IsDeleted, cancellationToken)
.ConfigureAwait(false);
if (apartment is null)
{
throw new NotFoundException($"Apartment {request.ApartmentId} could not be found!");
}
var holidays = await holidayService.GetHolidaysAsync(cancellationToken).ConfigureAwait(false);
double totalCost = 0;
for (int nightCount = 0; nightCount < request.NumberOfNights; ++nightCount)
{
var currDate = request.StartDate.AddDays(nightCount);
double currPrice = apartment.PricePerNight;
if (DateTimeHelpers.IsWeekend(currDate))
{
currPrice -= apartment.PricePerNight * WeekendRate;
}
if (holidays.Any(h => h.Day == currDate.Day && h.Month == currDate.Month))
{
currPrice += apartment.PricePerNight * HolidayRate;
}
totalCost += currPrice;
}
return(totalCost);
}