package apperr

import (
	"context"
	"errors"
	"testing"

	"github.com/carlosframework/platform/internal/applog"
	"github.com/carlosframework/platform/internal/release"
)

// TestErrorsKeysRefuseEmptyApp: the errors family's own builders refuse
// the empty app an app-less route is filed under, and a read for it fails
// rather than listing apps/<sqid>//errors/.
func TestErrorsKeysRefuseEmptyApp(t *testing.T) {
	if k, err := Prefix("bab", ""); !errors.Is(err, applog.ErrBadKeySegment) || k != "" {
		t.Fatalf("Prefix = (%q, %v)", k, err)
	}
	if k, err := BoxPrefix("bab", "", "leo-climbing"); !errors.Is(err, applog.ErrBadKeySegment) || k != "" {
		t.Fatalf("BoxPrefix = (%q, %v)", k, err)
	}
	if k, err := ChunkKey("bab", "", "leo-climbing", "2026-10-16-06", 1, 2); !errors.Is(err, applog.ErrBadKeySegment) || k != "" {
		t.Fatalf("ChunkKey = (%q, %v)", k, err)
	}
	if _, _, err := ReadWindow(context.Background(), release.NewDirStore(t.TempDir()), "bab", "", Filter{}, 10); !errors.Is(err, applog.ErrBadKeySegment) {
		t.Fatalf("ReadWindow = %v", err)
	}
	if got := must(t)(ChunkKey("bab", "web", "leo-climbing", "2026-10-16-06", 1792015319229, 257)); got != "apps/bab/web/errors/leo-climbing/2026-10-16-06/0001792015319229-257.jsonl.gz" {
		t.Fatalf("valid ChunkKey moved: %q", got)
	}
}