package policy

import (
	"github.com/golang/glog"
	"k8s.io/apimachinery/pkg/labels"
)

func (pc *PolicyController) removeResourceWebhookConfiguration() error {
	var err error
	// get all existing policies
	policies, err := pc.pLister.List(labels.NewSelector())
	if err != nil {
		glog.V(4).Infof("failed to list policies: %v", err)
		return err
	}

	if len(policies) == 0 {
		glog.V(4).Info("no policies loaded, removing resource webhook configuration if one exists")
		return pc.resourceWebhookWatcher.RemoveResourceWebhookConfiguration()
	}

	glog.V(4).Info("no policies with mutating or validating webhook configurations, remove resource webhook configuration if one exists")

	return pc.resourceWebhookWatcher.RemoveResourceWebhookConfiguration()
}

func (pc *PolicyController) registerResourceWebhookConfiguration() {
	pc.resourceWebhookWatcher.RegisterResourceWebhook()
}