package nodeagent

import (
	"context"
	"embed"
	"io/fs"
	"sync/atomic"
	"syscall"

	corev1 "k8s.io/api/core/v1"

	"istio.io/istio/cni/pkg/iptables"
)

//go:embed testdata/cgroupns
var fakeProc embed.FS

type fakeZtunnel struct {
	deletedPods atomic.Int32
	addedPods   atomic.Int32
	addError    error
}

func (f *fakeZtunnel) Run(ctx context.Context) {
}

		expectMsg         string
	}{
		{
			name:              "no cgroups",
			cgroupPaths:       []string{},
			expectPodUID:      "",
			expectContainerID: "",
		},
		{
			name: "no container ID in cgroups",
			cgroupPaths: []string{
				"/user.slice",
			},
			expectPodUID:      "",
			expectContainerID: "",
		},
		{
			name: "one container ID in cgroups",
			cgroupPaths: []string{
				"/user.slice",

	reader := bytes.NewReader(procCgroupData.Bytes())
	var cgroups []Cgroup
	scanner := bufio.NewScanner(reader)

	for scanner.Scan() {
		token := scanner.Text()
		substrings := strings.SplitN(token, ":", 3)
		if len(substrings) < 3 {
			return nil, fmt.Errorf("cgroup entry contains %v colons, but expected at least 2 colons: %q", len(substrings), token)
		}
		cgroups = append(cgroups, Cgroup{

				}
			}
			if len(grps) > 0 {
				args["groups"] = grps
			}
		}
	}

	// if not claim groups are available use the one with auth.Credentials
	if _, ok := args["groups"]; !ok {
		if len(groups) > 0 {
			args["groups"] = groups
		}
	}

	return args
}

// PolicyToBucketAccessPolicy converts a MinIO policy into a minio-go policy data structure.

	defer cancel()

	r, err := ies.client.Get(cctx, iamConfigGroupsPrefix, etcd.WithPrefix(), etcd.WithKeysOnly())
	if err != nil {
		return err
	}

	groups := etcdKvsToSet(iamConfigGroupsPrefix, r.Kvs)

	// Reload config for all groups.
	for _, group := range groups.ToSlice() {
		if err = ies.loadGroup(ctx, group, m); err != nil && err != errNoSuchGroup {
			return err
		}
	}
	return nil
}

				return errSRIAMError(err)
			}
		}
	}

	// Next should be Groups for some of these users, LDAP might have some Group
	// DNs here
	{
		groups := make(map[string]GroupInfo)
		err := globalIAMSys.store.loadGroups(ctx, groups)
		if err != nil {
			return errSRBackendIssue(err)
		}

		for gname, group := range groups {
			if err := c.IAMChangeHook(ctx, madmin.SRIAMItem{

	// first add all the pods as empty:
	for uid := range ambientPodUIDs {
		s.currentPodSnapshot.Ensure(string(uid))
	}

	// populate full pod snapshot from cgroups
	return s.scanProcForPodsAndCache(ambientPodUIDs)
}

func (s *NetServer) scanProcForPodsAndCache(pods map[types.UID]*corev1.Pod) error {
	// TODO: maybe remove existing uids in s.currentPodSnapshot from the filter set.

		// Get Group
		adminRouter.Methods(http.MethodGet).Path(adminVersion+"/group").HandlerFunc(adminMiddleware(adminAPI.GetGroup)).Queries("group", "{group:.*}")

		// List Groups
		adminRouter.Methods(http.MethodGet).Path(adminVersion + "/groups").HandlerFunc(adminMiddleware(adminAPI.ListGroups))

		// Set Group Status

		// return that info. Otherwise we return error.
		var groups []string
		for _, v := range cache.iamUsersMap {
			if v.Credentials.ParentUser == name {
				groups = v.Credentials.Groups
				break
			}
		}
		for _, v := range cache.iamSTSAccountsMap {
			if v.Credentials.ParentUser == name {
				groups = v.Credentials.Groups
				break
			}
		}

	"aaa": {
		User:               "Alice",
		MaxValiditySeconds: 3600,
		Claims: map[string]interface{}{
			"groups": []string{"data-science"},
		},
	},
	"bbb": {
		User:               "Bart",
		MaxValiditySeconds: 3600,
		Claims: map[string]interface{}{
			"groups": []string{"databases"},
		},
	},
}

func mainHandler(w http.ResponseWriter, r *http.Request) {
	token := r.FormValue("token")