package multicluster

import (
	"context"

	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/types"
	"k8s.io/client-go/kubernetes"
)

// Use UUID of kube-system Namespace as unique identifier for cluster.
// (see https://docs.google.com/document/d/1F__vEKeI41P7PPUCMM9PVPYY34pyrvQI5rbTJVnS5c4)
func clusterUID(client kubernetes.Interface) (types.UID, error) {

	// istioctl install
	cmdApply cmdType = "istioctl install"
	// in-cluster controller
	cmdController cmdType = "operator controller"
)

// Golden output files add a lot of noise to pull requests. Use a unique suffix so
// we can hide them by default. This should match one of the `linuguist-generated=true`
// lines in istio.io/istio/.gitattributes.
const (
	goldenFileSuffixHideChangesInReview = ".golden.yaml"

}

func unexpandDomains(domains []string) []string {
	unique := sets.New(domains...)
	shouldDelete := sets.New[string]()
	for _, h := range domains {
		stripFull := strings.TrimSuffix(h, ".svc.cluster.local")
		if unique.Contains(stripFull) && stripFull != h {
			shouldDelete.Insert(h)
		}
		stripPartial := strings.TrimSuffix(h, ".svc")
		if unique.Contains(stripPartial) && stripPartial != h {
			shouldDelete.Insert(h)