Untitled

@startuml
!include <CSharpskin>

namespace Models {
  class User {
    - UserID : int <<primaryKey>>
    - Username : string
    - Password : string
    - FirstName : string
    - LastName : string
    - Email : string
    - ContactNumber : string
    - UserType : string 

    + Login() : bool
    + Logout() : void
    + ViewProfile() : void
    + EditProfile() : void
  }

  class Customer extends User {
    + SearchFlights() : List<Flight>
    + SelectSeat(flight : Flight) : void
    + MakeBooking(flight : Flight, schedule : Schedule, seat : Seat) : Booking
    + ViewBookings() : List<Booking>
    + CancelBooking(booking : Booking) : void
  }

  class Admin extends User {
    + AddFlight(flight : Flight) : void
    + UpdateFlight(flight : Flight) : void
    + DeleteFlight(flight : Flight) : void
    + ManageSchedules(flight : Flight) : void
    + ViewUsers() : List<User>
    + ViewBookings() : List<Booking>
  }

  class Flight {
    - FlightNumber : string <<primaryKey>>
    - Airline : string
    - Origin : string
    - Destination : string
    - DepartureTime : datetime
    - ArrivalTime : datetime
    - AircraftType : string
    - Status : string

    + GetFlightDetails() : string
    + UpdateStatus(status : string) : void
  }

  class Schedule {
    - ScheduleID : int <<primaryKey>>
    - FlightNumber : string
    - DepartureDate : date
    - ArrivalDate : date
    - Price : decimal

    + GetScheduleDetails() : string
  }

  class Seat {
    - SeatID : int <<primaryKey>>
    - FlightNumber : string
    - SeatNumber : string
    - Class : string
    - Availability : bool

    + ReserveSeat() : void
    + ReleaseSeat() : void
  }

  class Booking {
    - BookingID : int <<primaryKey>>
    - UserID : int
    - FlightNumber : string
    - ScheduleID : int
    - SeatID : int
    - BookingDate : datetime
    - TotalPrice : decimal
    - PaymentStatus : string

    + ConfirmBooking() : void
    + CancelBooking() : void
    + GenerateEticket() : void
  }
}

namespace ViewModels {
  class UserViewModel {
    + User : Models.User
    + LoginCommand : ICommand
    + // Other commands and properties for user interactions
  }

  class CustomerViewModel {
    + SearchFlightsCommand : ICommand
    + SelectSeatCommand : ICommand
    + MakeBookingCommand : ICommand
    + // Other commands and properties for customer interactions
  }

  class AdminViewModel {
    + AddFlightCommand : ICommand
    + UpdateFlightCommand : ICommand 
    + // Other commands and properties for admin interactions
  }

  class FlightSearchViewModel {
    + SearchCriteria : FlightSearchCriteria 
    + SearchResults : ObservableCollection<Models.Flight>
    + SearchCommand : ICommand
  }

  class BookingViewModel {
    + CurrentBooking : Models.Booking
    + ConfirmBookingCommand : ICommand
    + CancelBookingCommand : ICommand
  }
  // ... other ViewModels as needed
}

namespace Views {
  class MainWindow {
    // WPF Window for main application UI
  }

  class LoginWindow {
    - ViewModel : ViewModels.UserViewModel 
  }

  class FlightSearchView {
    // WPF UserControl for searching flights
  }

  class SeatSelectionView {
    // WPF UserControl for selecting seats
  }
  // ... other Views as needed
}


Models.User "1" -- "*" Models.Booking
Models.Flight "1" -- "*" Models.Schedule
Models.Flight "1" -- "*" Models.Seat
Models.Schedule "1" -- "*" Models.Booking
Models.Seat "1" -- "*" Models.Booking

Views.LoginWindow --> ViewModels.UserViewModel : Uses
ViewModels.UserViewModel --> Models.User : Accesses/Updates

@enduml