common

type DeletePrm struct {
	Address   oid.Address
	StorageID []byte
}

type DeleteRes struct{}

type ExistsPrm struct {
	Address   oid.Address
	StorageID []byte
}

type ExistsRes struct {
	Exists bool
}

type GetPrm struct {
	Address   oid.Address
	StorageID []byte
	Raw       bool
}

type GetRangePrm struct {
	Address   oid.Address
	Range     objectSDK.Range
	StorageID []byte
}

type GetRangeRes struct {
	Data []byte
}

type GetRes struct {
	Object  *objectSDK.Object
	RawData []byte
}

type IteratePrm struct {
	Handler      IterationHandler
	LazyHandler  func(oid.Address, func() ([]byte, error)) error
	IgnoreErrors bool
	ErrorHandler func(oid.Address, error) error
}

type IterateRes struct{}

type IterationElement struct {
	ObjectData []byte
	Address    oid.Address
	StorageID  []byte
}

type IterationHandler func(IterationElement) error

type PutPrm struct {
	Address      oid.Address
	Object       *objectSDK.Object
	RawData      []byte
	DontCompress bool
}

type PutRes struct {
	StorageID []byte
}

type Storage interface {
	Open(readOnly bool) error
	Init() error
	Close() error

	Type() string
	Path() string
	SetCompressor(cc *compression.Config)
	// SetReportErrorFunc allows to provide a function to be called on disk errors.
	// This function MUST be called before Open.
	SetReportErrorFunc(f func(string, error))

	Get(context.Context, GetPrm) (GetRes, error)
	GetRange(context.Context, GetRangePrm) (GetRangeRes, error)
	Exists(context.Context, ExistsPrm) (ExistsRes, error)
	Put(PutPrm) (PutRes, error)
	Delete(DeletePrm) (DeleteRes, error)
	Iterate(IteratePrm) (IterateRes, error)
}