public void CheckInTraveler(Traveler traveler)
{
if (traveler == null)
{
throw new ArgumentException(Constants.NoNullTravelers);
}
if (!IsRegisteredTraveler(traveler))
{
throw new ArgumentException(Constants.NotInRegisteredTravelers);
}
if (IsCheckedIn(traveler))
{
throw new ArgumentException(Constants.AlreadyCheckedIn);
}
_registeredTravelers[traveler.PassportId].IsCheckedIn = true;
}
private bool IsCheckedIn(Traveler traveler)
{
return(_registeredTravelers[traveler.PassportId].IsCheckedIn);
}
private bool IsRegisteredTraveler(Traveler traveler)
{
return(_registeredTravelers.ContainsKey(traveler.PassportId));
}
