Access requests implement ResourceWithLabels. (#19838)

Access requests now implement ResourceWithLabels and a few utility functions
have been added. These are all for making access requests easier to work with
for the new access request watcher introduced in
https://github.com/gravitational/teleport/pull/19626.

api/types/access_request.go

@@ -30,7 +30,7 @@ import (
 
 // AccessRequest is a request for temporarily granted roles
 type AccessRequest interface {
-	Resource
+	ResourceWithLabels
 	// GetUser gets the name of the requesting user
 	GetUser() string
 	// GetRoles gets the roles being requested by the user
@@ -412,6 +412,38 @@ func (r *AccessRequestV3) SetDryRun(dryRun bool) {
 	r.Spec.DryRun = dryRun
 }
 
+// GetStaticLabels returns the access request static labels.
+func (r *AccessRequestV3) GetStaticLabels() map[string]string {
+	return r.Metadata.Labels
+}
+
+// SetStaticLabels sets the access request static labels.
+func (r *AccessRequestV3) SetStaticLabels(sl map[string]string) {
+	r.Metadata.Labels = sl
+}
+
+// GetAllLabels returns the access request static labels.
+func (r *AccessRequestV3) GetAllLabels() map[string]string {
+	return r.Metadata.Labels
+}
+
+// MatchSearch goes through select field values and tries to
+// match against the list of search values.
+func (r *AccessRequestV3) MatchSearch(values []string) bool {
+	fieldVals := append(utils.MapToStrings(r.GetAllLabels()), r.GetName())
+	return MatchSearch(fieldVals, values, nil)
+}
+
+// Origin returns the origin value of the resource.
+func (r *AccessRequestV3) Origin() string {
+	return r.Metadata.Origin()
+}
+
+// SetOrigin sets the origin value of the resource.
+func (r *AccessRequestV3) SetOrigin(origin string) {
+	r.Metadata.SetOrigin(origin)
+}
+
 // String returns a text representation of this AccessRequest
 func (r *AccessRequestV3) String() string {
 	return fmt.Sprintf("AccessRequest(user=%v,roles=%+v)", r.Spec.User, r.Spec.Roles)
@@ -625,6 +657,14 @@ func (a AccessRequests) ToMap() map[string]AccessRequest {
 	return m
 }
 
+// AsResources returns these access requests as resources with labels.
+func (a AccessRequests) AsResources() (resources ResourcesWithLabels) {
+	for _, accessRequest := range a {
+		resources = append(resources, accessRequest)
+	}
+	return resources
+}
+
 // Len returns the slice length.
 func (a AccessRequests) Len() int { return len(a) }
 

api/types/access_request_test.go

@@ -0,0 +1,29 @@
+/*
+Copyright 2023 Gravitational, Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+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 types
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestAssertAccessRequestImplementsResourceWithLabels(t *testing.T) {
+	ar, err := NewAccessRequest("test", "test", "test")
+	require.NoError(t, err)
+	require.Implements(t, (*ResourceWithLabels)(nil), ar)
+}