public BookingValidator(IClientsRepository clientsRepository, IRoomsRepository roomsRepository, IBookingsRepository bookingsRepository)
{
_clientsRepository = clientsRepository;
_roomsRepository = roomsRepository;
_bookingsRepository = bookingsRepository;
RuleFor(booking => booking.ClientId)
.Cascade(CascadeMode.Stop)
.NotEmpty()
.MustAsync(async(clientId, cancellation) => { return(await _clientsRepository.IsClientExistsAsync(clientId)); })
.WithMessage("Client with this id doesn't exists.");
RuleFor(booking => booking.RoomId)
.Cascade(CascadeMode.Stop)
.NotEmpty()
.MustAsync(async(roomId, cancellation) => { return(await _roomsRepository.IsRoomExistsAsync(roomId)); })
.WithMessage("Room with this id doesn't exists.");
RuleFor(booking => booking.BookingDates)
.NotNull()
.Must(BeAValidDates)
.WithMessage("Dates are incorrect");
RuleFor(booking => booking.NumberOfPerson)
.NotEmpty()
.LessThanOrEqualTo(booking => GetMaxNumberOfPersonInRoom(booking.RoomId))
.GreaterThan(0);
}