listener "github.com/envoyproxy/go-control-plane/envoy/config/listener/v3"

	v3 "istio.io/istio/pilot/pkg/xds/v3"
)

// GetDynamicListenerDump retrieves a listener dump with just dynamic active listeners in it
func (w *Wrapper) GetDynamicListenerDump(stripVersions bool) (*admin.ListenersConfigDump, error) {
	listenerDump, err := w.GetListenerConfigDump()
	if err != nil {
		return nil, err
	}

package proto

import (
	"bytes"

	"google.golang.org/protobuf/proto"

	"istio.io/istio/pkg/util/protomarshal"
)

// MessageSlice allows us to marshal slices of protobuf messages like clusters/listeners/routes/endpoints correctly
type MessageSlice []proto.Message

// MarshalJSON handles marshaling of slices of proto messages
func (pSlice MessageSlice) MarshalJSON() ([]byte, error) {
	buffer := bytes.NewBufferString("[")

)

type configTypeURL string

// See https://www.envoyproxy.io/docs/envoy/latest/api-v3/admin/v3/config_dump.proto
const (
	bootstrap configTypeURL = "type.googleapis.com/envoy.admin.v3.BootstrapConfigDump"
	listeners configTypeURL = "type.googleapis.com/envoy.admin.v3.ListenersConfigDump"
	endpoints configTypeURL = "type.googleapis.com/envoy.admin.v3.EndpointsConfigDump"

func NewAnalyzer(envoyConfig *configdump.Wrapper) (*Analyzer, error) {
	listeners, err := envoyConfig.GetDynamicListenerDump(true)
	if err != nil {
		return nil, fmt.Errorf("failed to get dynamic listener dump: %s", err)
	}

	return &Analyzer{listenerDump: listeners}, nil
}

// Print print the analysis results.
func (a *Analyzer) Print(writer io.Writer) {
	var listeners []*listener.Listener
	for _, l := range a.listenerDump.DynamicListeners {

	case *hcm.HttpFilter_TypedConfig:
		if err := c.TypedConfig.UnmarshalTo(out); err != nil {
			return err
		}
	}
	return nil
}

func parse(listeners []*listener.Listener) []*parsedListener {
	var parsedListeners []*parsedListener
	for _, l := range listeners {
		parsed := &parsedListener{}
		for _, fc := range l.FilterChains {
			parsedFC := &filterChain{}
			for _, filter := range fc.Filters {
				switch filter.Name {

	}
	diff := difflib.UnifiedDiff{
		FromFile: "Istiod Listeners",
		A:        difflib.SplitLines(istiodBytes.String()),
		ToFile:   "Envoy Listeners",
		B:        difflib.SplitLines(envoyBytes.String()),
		Context:  c.context,
	}
	text, err := difflib.GetUnifiedDiffString(diff)
	if err != nil {
		return err
	}
	if text != "" {
		fmt.Fprintln(c.w, "Listeners Don't Match")
		fmt.Fprintln(c.w, text)
	} else {

		}
		if !find {
			return false
		}
	}
	if wf.Node != "" && !strings.EqualFold(workload.Node, wf.Node) {
		return false
	}
	return true
}

// PrintWorkloadSummary prints a summary of the relevant listeners in the config dump to the ConfigWriter stdout
func (c *ConfigWriter) PrintWorkloadSummary(filter WorkloadFilter) error {
	w := c.tabwriter()
	zDump := c.ztunnelDump

			wantException:  true, // "istioctl proxy-config clusters invalid" should fail
		},
		{ // listeners invalid
			args:           strings.Split("listeners invalid", " "),
			expectedString: "unable to retrieve Pod: pods \"invalid\" not found",
			wantException:  true, // "istioctl proxy-config listeners invalid" should fail
		},
		{ // logging empty
			args:           strings.Split("log", " "),

	if err != nil {
		t.Fatalf("Failed to create Comparator: %v", err)
	}
	err = comparator.Diff()
	if err != nil {
		t.Errorf("Unexpected error during diff: %v", err)
	}

	expected := []string{"Clusters Match", "Listeners Match", "Routes Match"}
	for _, exp := range expected {
		if !bytes.Contains(outputBuffer.Bytes(), []byte(exp)) {
			t.Errorf("Expected %s, but it was not found", exp)
		}
	}
}