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

package validation

import (
	"errors"
	"fmt"
	"strings"

	networking "istio.io/api/networking/v1alpha3"
	"istio.io/istio/pkg/config/labels"
	"istio.io/istio/pkg/config/validation/agent"
)

type HTTPRouteType int

const (
	IndependentRoute = iota
	RootRoute
	DelegateRoute
)

	"strings"

	corev1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"sigs.k8s.io/gateway-api/apis/v1beta1"

	"istio.io/api/annotation"
	"istio.io/api/label"
	meshconfig "istio.io/api/mesh/v1alpha1"
	"istio.io/istio/pilot/pkg/features"
	"istio.io/istio/pilot/pkg/model"
	"istio.io/istio/pilot/pkg/serviceregistry/provider"
	"istio.io/istio/pkg/cluster"
	"istio.io/istio/pkg/config/constants"

	case hasPrefix(key, attrDestLabel):
		return fmt.Errorf("attribute %s is replaced by the workload selector", key)
	case isEqual(key, attrDestName, attrDestUser):
		return fmt.Errorf("deprecated attribute %s: only supported in v1alpha1", key)
	default:
		return fmt.Errorf("unknown attribute: %s", key)
	}
	return nil
}

func isEqual(key string, values ...string) bool {
	for _, v := range values {
		if key == v {
			return true