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from .Constant import Constant
class Reservation:
NR = -1
_reservationPool = {}
def __init__(self, day: int, time: int, room: int):
self.Day = day
self.Time = time
self.Room = room
@staticmethod
def parse(hashCode):
reservation = Reservation._reservationPool.get(hashCode)
if reservation is None:
day = hashCode // (Constant.DAY_HOURS * Reservation.NR)
hashCode2 = hashCode - (day * Constant.DAY_HOURS * Reservation.NR)
room = hashCode2 // Constant.DAY_HOURS
time = hashCode2 % Constant.DAY_HOURS
reservation = Reservation(day, time, room)
Reservation._reservationPool[hashCode] = reservation
return reservation
@staticmethod
def getHashCode(day: int, time: int, room: int) -> int:
return day * Reservation.NR * Constant.DAY_HOURS + room * Constant.DAY_HOURS + time
@staticmethod
def getReservation(nr: int, day: int, time: int, room: int):
if nr != Reservation.NR and nr > 0:
Reservation.NR = nr
Reservation._reservationPool.clear()
hashCode = Reservation.getHashCode(day, time, room)
reservation = Reservation.parse(hashCode)
if reservation is None:
reservation = Reservation(day, time, room)
Reservation._reservationPool[hashCode] = reservation
return reservation
def __hash__(self) -> int:
return Reservation.getHashCode(self.Day, self.Time, self.Room)
def __eq__(self, other):
if not isinstance(other, self.__class__):
return False
return hash(self) == hash(other)
def __ne__(self, other):
return not self.__eq__(other)
def __str__(self):
return "Day: " + str(self.Day) + ", " + "Room: " + str(self.Room) + ", Time: " + str(self.Time)
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