// doesn't support creating `list:set` types yet (is in main branch tho).
// So this will actually create 2 underlying ipsets, one for v4 and one for v6
func NewIPSet(name string, v6 bool, deps NetlinkIpsetDeps) (IPSet, error) {
	var err error
	set := IPSet{
		V4Name: fmt.Sprintf(V4Name, name),
		Deps:   deps,
		Prefix: name,
	}
	err = deps.ipsetIPHashCreate(set.V4Name, false)
	if v6 {

	fakeClientSet := fake.NewClientset(pod)

	fakeIPSetDeps := ipset.FakeNLDeps()
	set := ipset.IPSet{V4Name: "foo-v4", Prefix: "foo", Deps: fakeIPSetDeps}

	m := getFakeDPWithIPSet(server, fakeClientSet, set)

	err := m.AddPodToMesh(fakeCtx, pod, podIPs, "")
	assert.Error(t, err)

	// as this is a partial add error we should NOT have added to the ipset
	fakeIPSetDeps.AssertExpectations(t)

}

// createHostsideProbeIpset creates an ipset. This is designed to be called from the host netns.
// Note that if the ipset already exist by name, Create will not return an error.
//
// We will unconditionally flush our set before use here, so it shouldn't matter.
func createHostsideProbeIpset(isV6 bool) (ipset.IPSet, error) {
	linDeps := ipset.RealNlDeps()
	probeSet, err := ipset.NewIPSet(iptables.ProbeIPSet, isV6, linDeps)

	err := netlink.IpsetFlush(name)
	if err != nil {
		return fmt.Errorf("failed to flush ipset %s: %w", name, err)
	}
	return nil
}

// Alpine and some distros struggles with this - ipset CLI utilities support this, but
// the kernel can be out of sync with the CLI utility, leading to errors like:
//
// ipset v7.10: Argument `comment' is supported in the kernel module of the set type hash:ip

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package ipset

import (
	"net/netip"

	"github.com/stretchr/testify/mock"
)

type MockedIpsetDeps struct {
	mock.Mock
}

func FakeNLDeps() *MockedIpsetDeps {
	return &MockedIpsetDeps{}
}

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package ipset

import (
	"errors"
	"net/netip"
)

func RealNlDeps() NetlinkIpsetDeps {
	return &realDeps{}
}

type realDeps struct{}

func (m *realDeps) ipsetIPHashCreate(name string, v6 bool) error {

// See the License for the specific language governing permissions and
// limitations under the License.

package iptables

import (
	"errors"
	"fmt"
	"net/netip"
	"strings"

	"istio.io/istio/cni/pkg/ipset"
	"istio.io/istio/cni/pkg/scopes"
	istiolog "istio.io/istio/pkg/log"
	"istio.io/istio/pkg/ptr"
	"istio.io/istio/tools/istio-iptables/pkg/builder"
	iptablesconfig "istio.io/istio/tools/istio-iptables/pkg/config"

	return s.ztunnelServer.PodAdded(ctx, pod, netns)
}

// ConstructInitialSnapshot takes a "snapshot" of current ambient pods and
//
// 1. Constructs a ztunnel state message to initialize ztunnel
// 2. Syncs the host ipset
func (s *NetServer) ConstructInitialSnapshot(ambientPods []*corev1.Pod) error {
	var consErr []error

	podsByUID := slices.GroupUnique(ambientPods, (*corev1.Pod).GetUID)

						hostIPCache[host] = hostIPSet
					}
				}
				if IPSet, ok := pathIPMap[endpoint.Path]; ok {
					if !IPSet.Intersection(hostIPSet).IsEmpty() {
						return nil, setupType,
							config.ErrInvalidErasureEndpoints(nil).Msg(fmt.Sprintf("same path '%s' can not be served by different port on same address", endpoint.Path))
					}
					pathIPMap[endpoint.Path] = IPSet.Union(hostIPSet)
				} else {

	//nolint:gocritic
	if !env.IsSet(config.EnvRootUser) && env.IsSet(config.EnvRootPassword) {
		logger.Fatal(config.ErrMissingEnvCredentialRootUser(nil), "Unable to start MinIO")
	} else if env.IsSet(config.EnvRootUser) && !env.IsSet(config.EnvRootPassword) {
		logger.Fatal(config.ErrMissingEnvCredentialRootPassword(nil), "Unable to start MinIO")
	} else if !env.IsSet(config.EnvRootUser) && !env.IsSet(config.EnvRootPassword) {