public static int addReservation(int petNumber, DateTime startDate, DateTime endDate) { Search check = new Search(); //return -10 Invalid Pet Number if (check.validatePetNumber(petNumber) == false) { return(-10); } //return -11 Start Date In the past if (startDate < DateTime.Now) { return(-11); } //return -12 Start Date After end date if (startDate > endDate) { return(-12); } //return -13 Dog has reservation for all or part of period if (check.validateConflictingReservations(petNumber, startDate, endDate) == false) { return(-13); } //return -14 No Run Available if (Run.checkRunAvailability(startDate, endDate, check.getPetSize(petNumber)) <= 0) { return(-14); } //return -15 Insert Failed ReservationDB reservation = new ReservationDB(); if (reservation.addReservation(petNumber, startDate, endDate) == -1) { return(-15); } //return -1 if expired or missing Vaccinations int count = PetVaccination.checkVaccinations(petNumber, endDate); if (count == -1) { return(-1); } else { return(0); } }