🔧 Adding LLD Example for Parking Garage

Author: raj713335

07 LLD Interview Questions/Parking_Garage/PakingLot.py renamed to 07 LLD Interview Questions/Parking_Garage/ParkingLot.py

@@ -1,12 +1,13 @@
-import ParkingSpot
-import Ticket
-import SpotType
-import Vehicle
+from ParkingSpot import ParkingSpot
+from Ticket import Ticket
+from SpotType import SpotType
+from Vehicle import Vehicle
 
-class parkingLot:
+
+class ParkingLot:
     def __init__(self):
         self.spots: list[ParkingSpot] = []
-        self.active_tickets: dict[str, Ticket] ={}
+        self.active_tickets: dict[str, Ticket] = {}
 
     def add_spot(self, spot: ParkingSpot):
         self.spots.append(spot)
@@ -26,13 +27,14 @@ def park_vehicle(self, vehicle: Vehicle, spot_type: SpotType) -> Ticket:
         spot.assign_vehicle(vehicle)
         ticket = Ticket(vehicle, spot)
         self.active_tickets[ticket.ticket_id] = ticket
+        return ticket
 
     def unpark_vehicle(self, ticket_id: str):
         ticket = self.active_tickets.get(ticket_id)
         if not ticket:
             raise Exception("Invalid ticket Id")
         ticket.close()
-        free = ticket.get_fee()
-        ticket.spot_remove_vehicle()
+        free = ticket.get_fees()
+        ticket.spot.remove_vehicle()
         del self.active_tickets[ticket_id]
         return free

07 LLD Interview Questions/Parking_Garage/ParkingSpot.py

@@ -1,5 +1,5 @@
-import SpotType
-import Vehicle
+from SpotType import SpotType
+from Vehicle import Vehicle
 
 class ParkingSpot:
     def __init__(self, spot_id: str, spot_type: SpotType):

07 LLD Interview Questions/Parking_Garage/Parking_Garage.py

@@ -0,0 +1,24 @@
+from ParkingLot import ParkingLot
+from ParkingSpot import ParkingSpot
+from Vehicle import Vehicle
+from Ticket import Ticket
+from SpotType import SpotType
+
+if __name__ == "__main__":
+
+    # create lot and add spots
+    lot = ParkingLot()
+    lot.add_spot(ParkingSpot("S1", SpotType.COMPACT))
+    lot.add_spot(ParkingSpot("S1", SpotType.LARGE))
+    lot.add_spot(ParkingSpot("S1", SpotType.REGULAR))
+
+    # Park Vehicle
+
+    vehicle = Vehicle("KA-01-AB-1234")
+    ticket = lot.park_vehicle(vehicle, SpotType.REGULAR)
+    print(f"Vehicle parked. Ticket ID: {ticket.ticket_id}")
+
+    # Unpark a vehicle
+
+    fee = lot.unpark_vehicle(ticket.ticket_id)
+    print(f"Vehicle unparked. Fee: {fee}")

07 LLD Interview Questions/Parking_Garage/Ticket.py

@@ -1,5 +1,5 @@
 import Vehicle
-import ParkingSpot
+from ParkingSpot import ParkingSpot
 import uuid
 from datetime import datetime
 

07 LLD Interview Questions/Parking_Garage/__init__.py

@@ -0,0 +1,5 @@
+from ParkingLot import ParkingLot
+from ParkingSpot import ParkingSpot
+from Vehicle import Vehicle
+from Ticket import Ticket
+from SpotType import SpotType