public FacadeBase Login(string username, string pwd, out ILoginToken loginToken)
{
LoginService LS = new LoginService();
if (LS.TryAdminLogin(username, pwd, out LoginToken <Administrator> adminToken))
{
loginToken = adminToken;
return(new LoggedInAdministratorFacade());
}
if (LS.TryAirlineLogin(username, pwd, out LoginToken <AirlineCompany> airlineToken))
{
loginToken = airlineToken;
return(new LoggedInAirlineFacade());
}
if (LS.TryCustomerLogin(username, pwd, out LoginToken <Customer> customerToken))
{
loginToken = customerToken;
return(new LoggedInCustomerFacade());
}
loginToken = null;
return(null);
}