"istio.io/istio/pkg/monitoring"
)

var (
	eventTypeTag = monitoring.CreateLabel("type")
	EventTotals  = monitoring.NewSum(
		"nodeagent_reconcile_events_total",
		"The total number of node agent reconcile events.",
	)
)

type K8sHandlers interface {
	GetPodIfAmbient(podName, podNamespace string) (*corev1.Pod, error)
	GetActiveAmbientPodSnapshot() []*corev1.Pod
	Start()
}

type InformerHandlers struct {

		types.MergePatchType, labelsPatch, metav1.PatchOptions{})
	assert.NoError(t, err)

	// wait for another two update events
	// total 3 update at before unlabel point: 1. init ns reconcile 2. ns label reconcile 3. pod annotation update
	mt.Assert(EventTotals.Name(), map[string]string{"type": "update"}, monitortest.AtLeast(5))

	waitForMockCalls()

	assertPodNotAnnotated(t, client, pod)

		// If status is not changed, no reconcile should be triggered
		channel <- CreatePodUpdate(op, TestSource, pods...)
		expectNoPodUpdate(t, ch)

		// If the pod status is changed and not updated, a reconcile should be triggered
		pods, podWithStatusChange = newTestPods(true, false)
		channel <- CreatePodUpdate(op, TestSource, pods...)
		expectPodUpdate(t, ch, CreatePodUpdate(kubetypes.RECONCILE, TestSource, podWithStatusChange))

		// Add a new pod between DSW ppoulator and reconciler run
		_, err = adc.kubeClient.CoreV1().Pods(newPod.ObjectMeta.Namespace).Create(tCtx, newPod, metav1.CreateOptions{})
		if err != nil {
			t.Fatalf("Run failed with error. Failed to create a new pod: <%v>", err)
		}
		extraPodsNum++
		podInformer.GetIndexer().Add(newPod)
	}

	go adc.reconciler.Run(tCtx)
	go adc.desiredStateOfWorldPopulator.Run(tCtx)

	}
}

// tryRegisterWithAPIServer makes an attempt to register the given node with
// the API server, returning a boolean indicating whether the attempt was
// successful.  If a node with the same name already exists, it reconciles the
// value of the annotation for controller-managed attach-detach of attachable
// persistent volumes for the node.
func (kl *Kubelet) tryRegisterWithAPIServer(node *v1.Node) bool {

	}
	dc.queue = controllers.NewQueue("gateway deployment",
		controllers.WithReconciler(dc.Reconcile),
		controllers.WithMaxAttempts(5))

	// Set up a handler that will add the parent Gateway object onto the queue.
	// The queue will only handle Gateway objects; if child resources (Service, etc) are updated we re-add
	// the Gateway to the queue and reconcile the state of the world.

		}
		s.GenericAPIServer.AddPostStartHookOrDie("peer-endpoint-reconciler-controller",
			func(hookContext genericapiserver.PostStartHookContext) error {
				peerEndpointCtrl.Start(hookContext.StopCh)
				return nil
			})
		s.GenericAPIServer.AddPreShutdownHookOrDie("peer-endpoint-reconciler-controller",
			func() error {
				peerEndpointCtrl.Stop()
				return nil
			})

// The bidirectional relation is achieved using the following fields:
// Service.Spec.Cluster == IPAddress.Name AND IPAddress.ParentRef == Service
//
// The controller use two reconcile loops, one for Services and other for IPAddress.
// The Service reconcile loop verifies the bidirectional relation exists and is correct.
// 1. Service_X [ClusterIP_X]  <------>  IPAddress_X [Ref:Service_X]   ok

		"--egress-selector-config-file=/var/run/kubernetes/egress-selector/connectivity.yaml",
		"--enable-aggregator-routing=true",
		"--enable-priority-and-fairness=false",
		"--enable-logs-handler=false",
		"--endpoint-reconciler-type=" + string(reconcilers.LeaseEndpointReconcilerType),
		"--etcd-keyfile=/var/run/kubernetes/etcd.key",
		"--etcd-certfile=/var/run/kubernetes/etcdce.crt",
		"--etcd-cafile=/var/run/kubernetes/etcdca.crt",

	// that signal whether any of the pods covered by the PDB can be disrupted.
	DisruptionAllowedCondition = "DisruptionAllowed"

	// SyncFailedReason is set on the DisruptionAllowed condition if reconcile
	// of the PDB failed and therefore disruption of pods are not allowed.
	SyncFailedReason = "SyncFailed"
	// SufficientPodsReason is set on the DisruptionAllowed condition if there are