adapter

type Adapter interface {
	// Info return the information of this adapter
	Info() (*model.RegistryInfo, error)
	// PrepareForPush does the prepare work that needed for pushing/uploading the resources
	// eg: create the namespace or repository
	PrepareForPush([]*model.Resource) error
	// HealthCheck checks health status of registry
	HealthCheck() (string, error)
}

type ArtifactRegistry interface {
	FetchArtifacts(filters []*model.Filter) ([]*model.Resource, error)
	ManifestExist(repository, reference string) (exist bool, desc *distribution.Descriptor, err error)
	PullManifest(repository, reference string, accepttedMediaTypes ...string) (manifest distribution.Manifest, digest string, err error)
	PushManifest(repository, reference, mediaType string, payload []byte) (string, error)
	DeleteManifest(repository, reference string) error // the "reference" can be "tag" or "digest", the function needs to handle both
	BlobExist(repository, digest string) (exist bool, err error)
	PullBlob(repository, digest string) (size int64, blob io.ReadCloser, err error)
	PullBlobChunk(repository, digest string, blobSize, start, end int64) (size int64, blob io.ReadCloser, err error)
	PushBlobChunk(repository, digest string, size int64, chunk io.Reader, start, end int64, location string) (nextUploadLocation string, endRange int64, err error)
	PushBlob(repository, digest string, size int64, blob io.Reader) error
	MountBlob(srcRepository, digest, dstRepository string) (err error)
	CanBeMount(digest string) (mount bool, repository string, err error) // check whether the blob can be mounted from the remote registry
	DeleteTag(repository, tag string) error
	ListTags(repository string) (tags []string, err error)
}

type Factory interface {
	Create(*model.Registry) (Adapter, error)
	AdapterPattern() *model.AdapterPattern
}