movie-ticket-booking-system.md

Designing a Movie Ticket Booking System like BookMyShow

Requirements

1. The system should allow users to view the list of movies playing in different theaters.
2. Users should be able to select a movie, theater, and show timing to book tickets.
3. The system should display the seating arrangement of the selected show and allow users to choose seats.
4. Users should be able to make payments and confirm their booking.
5. The system should handle concurrent bookings and ensure seat availability is updated in real-time.
6. The system should support different types of seats (e.g., normal, premium) and pricing.
7. The system should allow theater administrators to add, update, and remove movies, shows, and seating arrangements.
8. The system should be scalable to handle a large number of concurrent users and bookings.

Implementations

Java Implementation

Python Implementation

Classes, Interfaces and Enumerations

1. The Movie class represents a movie with properties such as ID, title, description, and duration.
2. The Theater class represents a theater with properties such as ID, name, location, and a list of shows.
3. The Show class represents a movie show in a theater, with properties such as ID, movie, theater, start time, end time, and a map of seats.
4. The Seat class represents a seat in a show, with properties such as ID, row, column, type, price, and status.
5. The SeatType enum defines the different types of seats (normal or premium).
6. The SeatStatus enum defines the different statuses of a seat (available or booked).
7. The Booking class represents a booking made by a user, with properties such as ID, user, show, selected seats, total price, and status.
8. The BookingStatus enum defines the different statuses of a booking (pending, confirmed, or cancelled).
9. The User class represents a user of the booking system, with properties such as ID, name, and email.
10. The MovieTicketBookingSystem class is the main class that manages the movie ticket booking system. It follows the Singleton pattern to ensure only one instance of the system exists.
11. The MovieTicketBookingSystem class provides methods for adding movies, theaters, and shows, as well as booking tickets, confirming bookings, and cancelling bookings.
12. Multi-threading is achieved using concurrent data structures such as ConcurrentHashMap to handle concurrent access to shared resources like shows and bookings.
13. The MovieTicketBookingDemo class demonstrates the usage of the movie ticket booking system by adding movies, theaters, shows, booking tickets, and confirming or cancelling bookings.