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() (model.HealthStatus, error)
}

type ArtifactRegistry interface {
	FetchArtifacts(filters []*model.Filter) ([]*model.Resource, error)
	ManifestExist(repository, reference string) (exist bool, digest string, 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)
	PushBlob(repository, digest string, size int64, blob io.Reader) error
	DeleteTag(repository, tag string) error
}

type ChartRegistry interface {
	FetchCharts(filters []*model.Filter) ([]*model.Resource, error)
	ChartExist(name, version string) (bool, error)
	DownloadChart(name, version string) (io.ReadCloser, error)
	UploadChart(name, version string, chart io.Reader) error
	DeleteChart(name, version string) error
}

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