package api

import (
	"context"
	"io"

	"github.com/ipfs/go-cid"

	"github.com/filecoin-project/sector-storage/sealtasks"
	"github.com/filecoin-project/sector-storage/stores"
	"github.com/filecoin-project/sector-storage/storiface"
	"github.com/filecoin-project/specs-actors/actors/abi"
	"github.com/filecoin-project/specs-storage/storage"

	"github.com/filecoin-project/lotus/build"
)

type WorkerAPI interface {
	Version(context.Context) (build.Version, error)
	// TODO: Info() (name, ...) ?

	TaskTypes(context.Context) (map[sealtasks.TaskType]struct{}, error) // TaskType -> Weight
	Paths(context.Context) ([]stores.StoragePath, error)
	Info(context.Context) (storiface.WorkerInfo, error)

	storage.Sealer

	UnsealPiece(context.Context, abi.SectorID, storiface.UnpaddedByteIndex, abi.UnpaddedPieceSize, abi.SealRandomness, cid.Cid) error
	ReadPiece(context.Context, io.Writer, abi.SectorID, storiface.UnpaddedByteIndex, abi.UnpaddedPieceSize) error

	Fetch(context.Context, abi.SectorID, stores.SectorFileType, bool, stores.AcquireMode) error

	Closing(context.Context) (<-chan struct{}, error)
}