}

// jsonMergePatchFunc defines the interface for functions that construct json merge patches that manipulate
// owner reference array.
type jsonMergePatchFunc func(*node) ([]byte, error)

// patch tries strategic merge patch on item first, and if SMP is not supported, it fallbacks to JSON merge
// patch.
func (gc *GarbageCollector) patch(item *node, smp []byte, jmp jsonMergePatchFunc) (*metav1.PartialObjectMetadata, error) {

			}
			if diff := cmp.Diff(sets.List(patchedPodNames), sets.List(deletedPodNames)); diff != "" {
				t.Errorf("unexpected difference in the set of patched and deleted pods: %s", diff)
			}
			for victimName := range deletedPodNames {
				found := false
				for _, expPod := range test.expectedPods {
					if expPod == victimName {
						found = true

	})

	go c.Run(stop)

	// Ensure the ConfigMap is initially loaded if present.
	if !client.WaitForCacheSync("configmap watcher", stop, c.HasSynced) {
		log.Error("failed to wait for cache sync")
	}
	return w
}

func AddUserMeshConfig(client kube.Client, watcher mesh.Watcher, namespace, key, userMeshConfig string, stop <-chan struct{}) {

}

// Matcher decides if a request is exempted by the NamespaceSelector of a
// webhook configuration.
type Matcher struct {
	NamespaceLister corelisters.NamespaceLister
	Client          clientset.Interface
}

func (m *Matcher) GetNamespace(name string) (*v1.Namespace, error) {
	return m.NamespaceLister.Get(name)
}

// Validate checks if the Matcher has a NamespaceLister and Client.

#
# Given an RPM spec file $1, apply its patches.

SPEC="$1"
grep '%patch' "${SPEC}" |while read cmd ; do
  N=$(echo "${cmd}" |sed 's,%patch\([0-9]\+\).*,\1,')
  file=$(grep "Patch$N:" "${SPEC}" |sed 's,.*: ,,')
  parg=$(echo "${cmd}" |sed 's,.*\(-p[0-9]\).*,\1,')
  if [[ ! "${file}" =~ doxygen && "${cmd}" != \#* ]]; then
    echo "patch ${parg} -s < ${file}"
    patch ${parg} -s < "${file}"
  fi

*/

package jsonmergepatch

import (
	"fmt"
	"reflect"

	"gopkg.in/evanphx/json-patch.v4"
	"k8s.io/apimachinery/pkg/util/json"
	"k8s.io/apimachinery/pkg/util/mergepatch"
)

// Create a 3-way merge patch based-on JSON merge patch.
// Calculate addition-and-change patch between current and modified.
// Calculate deletion patch between original and modified.

			merge.Merge(lis, lp.Value)
		}
	}
	patchListenerFilters(patchContext, patches[networking.EnvoyFilter_LISTENER_FILTER], lis)
	patchFilterChains(patchContext, patches, lis)
}

// patchListenerFilters patches passed in listener filters with listener filter patches.
func patchListenerFilters(patchContext networking.EnvoyFilter_PatchContext,
	patches []*model.EnvoyFilterConfigPatchWrapper,
	lis *listener.Listener,
) {

func NewFixedWatcher(mesh *meshconfig.MeshConfig) Watcher {
	iw := internalWatcher{}
	iw.MeshConfig.Store(mesh)
	return &iw
}

// NewFileWatcher creates a new Watcher for changes to the given mesh config file. Returns an error
// if the given file does not exist or failed during parsing.
func NewFileWatcher(fileWatcher filewatcher.FileWatcher, filename string, multiWatch bool) (Watcher, error) {

// GetServiceMatches returns the subset of echo.Services that match this Matcher.
func (m Matcher) GetServiceMatches(services echo.Services) echo.Services {
	out := make(echo.Services, 0)
	for _, s := range services {
		if len(s) > 0 && m(s[0]) {
			out = append(out, s)
		}
	}
	return out
}

// First finds the first Instance that matches the Matcher.
func (m Matcher) First(i echo.Instances) (echo.Instance, error) {
	for _, i := range i {

	return v.Expression
}

func (v *MatchCondition) ReturnTypes() []*cel.Type {
	return []*cel.Type{cel.BoolType}
}

var _ Matcher = &matcher{}

// matcher evaluates compiled cel expressions and determines if they match the given request or not
type matcher struct {
	filter      celplugin.Filter
	failPolicy  v1.FailurePolicyType
	matcherType string
	matcherKind string
	objectName  string
}