//
// Copyright 2021 The Sigstore Authors.
//
// 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 oci

import v1 "github.com/google/go-containerregistry/pkg/v1"

// SignedIndex represents an OCI ImageIndex, complemented with accessors
// for retrieving signed metadata associated with that ImageIndex.
type SignedImageIndex interface {
	v1.ImageIndex
	SignedEntity

	// SignedImage is the same as Image, but provides accessors for the nested
	// image's signed metadata.
	SignedImage(v1.Hash) (SignedImage, error)

	// SignedImageIndex is the same as ImageIndex, but provides accessors for
	// the nested image index's signed metadata.
	SignedImageIndex(v1.Hash) (SignedImageIndex, error)
}