package link

import (
	"errors"
	"strings"
	"testing"
	"time"
)

// What one reply means to a node enrolling (novox/hq issue 083): accepted is done; "try again" is
// asked again, until the node's patience runs out and it says the token was not spent; anything
// else is a refusal.
func TestAnEnrollingNodeAsksAgainWhileTheMeshSaysNotNow(t *testing.T) {
	if again, err := answered(EnrolReply{Accepted: true}, 0); again || err != nil {
		t.Fatalf("an accepted enrolment was not done: again=%v err=%v", again, err)
	}
	if again, err := answered(EnrolReply{TryAgain: true}, time.Second); !again || err != nil {
		t.Fatalf("a mesh saying not now was not asked again: again=%v err=%v", again, err)
	}
	again, err := answered(EnrolReply{TryAgain: true, Refusal: "restarting"}, EnrolPatience)
	if again || !errors.Is(err, ErrNotNow) {
		t.Fatalf("a mesh saying not now past the node's patience did not stop it: again=%v err=%v", again, err)
	}
	if !errorsMention(err, "not spent") {
		t.Errorf("giving up did not say the token can be used again: %v", err)
	}
	if again, err := answered(EnrolReply{Refusal: "that token cannot be used"}, 0); again || !errors.Is(err, ErrRefused) {
		t.Fatalf("a refusal was not a refusal: again=%v err=%v", again, err)
	}
}

func errorsMention(err error, what string) bool {
	return err != nil && strings.Contains(err.Error(), what)
}