package lane

import (
	"context"
	"sort"
	"testing"
)

// TestRegistry_PreCreateMakesLanesVisible is the lane-level anchor for
// hotfix-5 Bug 4. The mort.go boot path now pre-creates the well-known
// lanes (skill-default, webhook-default, etc.) so they appear on
// `/skills/admin/queues` and pass set-lane validation BEFORE any run
// has ever hit them.
//
// Why this test (vs the existing GetOrCreate idempotency test): the
// production bug was specifically about the registry's lazy-creation
// behaviour combined with the queues page only listing materialised
// lanes. This test asserts the missing piece: after pre-creation, both
// Get and List return the lane immediately, regardless of whether a
// job ever touched it.
func TestRegistry_PreCreateMakesLanesVisible(t *testing.T) {
	r := NewRegistry(nil)
	wellKnown := []string{
		"ollama", "anthropic-thinking", "anthropic-default", "llm-default",
		"skill-default", "skill-heavy", "webhook-default",
	}
	ctx := context.Background()
	for _, name := range wellKnown {
		_ = r.GetOrCreate(ctx, name)
	}
	// Get must return non-nil for every lane WITHOUT going through
	// GetOrCreate again — that's the pre-creation guarantee.
	for _, name := range wellKnown {
		if l := r.Get(name); l == nil {
			t.Errorf("lane %q not registered after pre-create; admin "+
				"queues page would be missing it (Bug 4 regression)", name)
		}
	}
	// List must enumerate every pre-created lane.
	got := make([]string, 0)
	for _, l := range r.List() {
		got = append(got, l.Name())
	}
	sort.Strings(got)
	want := append([]string{}, wellKnown...)
	sort.Strings(want)
	if len(got) != len(want) {
		t.Fatalf("List length: got %d, want %d (got=%v, want=%v)", len(got), len(want), got, want)
	}
	for i := range want {
		if got[i] != want[i] {
			t.Errorf("List[%d]: got %q, want %q", i, got[i], want[i])
		}
	}
}