package auth

type User interface {
	GetUsername() string
	GetName() string
	GetSurname() string
	GetFullName() string
}

type Session interface {
	GetUsername() string
	GetToken() string
}

type AuthenticatorService interface {
	GetUser(username string) (User, error)
	GetUsers() ([]User, error)
	GetSession(token string) (Session, error)
	Login(username, password string) (Session, error)
}

func UserForSession(as AuthenticatorService, token string) (User, error) {
	session, err := as.GetSession(token)
	if err != nil {
		return nil, err
	}

	user, err := as.GetUser(session.GetUsername())
	if err != nil {
		return nil, err
	}

	return user, nil
}

func New(host string) AuthenticatorService {
	if host == ":memory:" {
		return exampleMemoryUsers
	}

	return &LDAPAuthService{host}
}