}

func runInHost[T any](f func() (T, error)) (T, error) {
	var res T
	ns := getPidNamespace(1)
	err := netns.WithNetNSPath(ns, func(_ netns.NetNS) error {
		var err error
		res, err = f()
		return err
	})
	if err != nil {
		return res, fmt.Errorf("in network namespace %v: %v", ns, err)
	}

	return res, nil
}

func checkInterfacesForMatchingAddr(targetAddr net.IP) (match bool, err error) {

	cfg.CaptureAllDNS = rdrct.dnsRedirect
	cfg.DropInvalid = rdrct.invalidDrop
	cfg.DualStack = rdrct.dualStack

	netNs, err := getNs(netns)
	if err != nil {
		err = fmt.Errorf("failed to open netns %q: %s", netns, err)
		return err
	}
	defer netNs.Close()

	return netNs.Do(func(_ ns.NetNS) error {
		// Important: run within the pod network namespace since some attributes are namespace specific

	path string
}

func (ns *mockNetNs) Do(toRun func(ns.NetNS) error) error {
	return toRun(ns)
}

func (*mockNetNs) Set() error {
	return nil
}

func (ns *mockNetNs) Path() string {
	return ns.path
}

func (*mockNetNs) Fd() uintptr {
	return 0
}

func (*mockNetNs) Close() error {
	return nil
}

type netNsFunc func(nspath string) (ns.NetNS, error)

	// in that case, try finding the netns using procfs.
	filter := map[types.UID]*corev1.Pod{
		pod.UID: pod,
	}
	return s.scanProcForPodsAndCache(filter)
}

func (s *NetServer) getOrOpenNetns(pod *corev1.Pod, netNs string) (Netns, error) {
	if netNs == "" {
		return s.getNetns(pod)
	}
	return s.openNetns(pod, netNs)
}

func (s *NetServer) openNetns(pod *corev1.Pod, netNs string) (Netns, error) {

	valid := CNIPluginAddEvent{
		Netns:        "/var/netns/foo",
		PodName:      "pod-bingo",
		PodNamespace: "funkyns",
	}

	payload, _ := json.Marshal(valid)

	addEvent, err := processAddEvent(payload)

	assert.NoError(t, err)
	assert.Equal(t, valid, addEvent)
}

func TestProcessAddEventBadPayload(t *testing.T) {
	valid := CNIPluginAddEvent{
		Netns:        "/var/netns/foo",
		PodName:      "pod-bingo",

	if existing := p.currentPodCache[uid]; existing.Netns != nil {
		if existing.Netns.Inode() == workload.Netns.Inode() {
			workload.Netns.Close()
			// Replace the workload, but keep the old Netns
			p.currentPodCache[uid] = WorkloadInfo{
				Workload: workload.Workload,
				Netns:    existing.Netns,
			}
			// already in cache
			return existing.Netns
		}
		log.Debug("netns inode mismatch, using the new one")
	}

	nspath1 := "/path/to/netns/1"
	nspath2 := "/path/to/netns/2"

	netns1, err := p.UpsertPodCache(pod, nspath1)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	netns2, err := p.UpsertPodCache(pod, nspath2)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	if !reflect.DeepEqual(netns1, netns2) {
		t.Fatalf("Expected the same Netns for the same uid, got %v and %v", netns1, netns2)

	return msg, nil
}

func (s *CniPluginServer) ReconcileCNIAddEvent(ctx context.Context, addCmd CNIPluginAddEvent) error {
	log := log.WithLabels("cni-event", addCmd)

	log.Debugf("netns: %s", addCmd.Netns)

	// The CNI node plugin should have already checked the pod against the k8s API before forwarding us the event,

	assert.Equal(t, nlDeps.DelLoopbackRoutesCnt.Load(), 1)
	// make sure the uid was taken from cache and netns closed
	netns := fixture.podNsMap.Take(string(pod.UID))
	assert.Equal(t, nil, netns)

	// run gc to clean up ns:

	//revive:disable-next-line:call-to-gc Just a test that we are cleaning up the netns
	runtime.GC()
	assertNSClosed(t, closed)
}

	for _, ipc := range prevResIps {
		ncconfigs = append(ncconfigs, nodeagent.IPConfig{Interface: ipc.Interface, Address: ipc.Address, Gateway: ipc.Gateway})
	}
	// Currently we only use the netns from the original CNI event
	addEvent := nodeagent.CNIPluginAddEvent{Netns: event.Netns, PodName: podName, PodNamespace: podNamespace, IPs: ncconfigs}
	eventData, err := json.Marshal(addEvent)
	if err != nil {
		return err
	}