Main.py

def main():
    while True:
        print("\nDoctor Appointment App")
        print("1. Book Appointment")
        print("2. View Appointments")
        print("3. Cancel Appointment")
        print("4. Exit")
        choice = input("Enter your choice: ")

        if choice == '1':
            patient_name = input("Enter patient name: ")
            doctor_name = input("Enter doctor name: ")
            date = input("Enter date (YYYY-MM-DD): ")
            time = input("Enter time (HH:MM): ")
            appointment = Appointment(patient_name, doctor_name, date, time)
            appointment.save()
            print("Appointment booked successfully!")

        elif choice == '2':
            appointments = Appointment.get_all()
            if appointments:
                print("\nAppointments:")
                for appt in appointments:
                    print(f"ID: {appt[0]}, Patient: {appt[1]}, Doctor: {appt[2]}, Date: {appt[3]}, Time: {appt[4]}")
            else:
                print("No appointments found.")

        elif choice == '3':
            appointment_id = input("Enter appointment ID to cancel: ")
            Appointment.cancel(appointment_id)
            print("Appointment canceled successfully!")

        elif choice == '4':
            print("Exiting...")
            break

        else:
            print("Invalid choice. Please try again.")

if __name__ == "__main__":
    main()