package miner

import (
	"github.com/libp2p/go-libp2p-core/peer"
	"golang.org/x/xerrors"

	"github.com/filecoin-project/go-address"
	"github.com/filecoin-project/go-bitfield"
	"github.com/filecoin-project/go-state-types/abi"
	"github.com/filecoin-project/go-state-types/cbor"
	v0builtin "github.com/filecoin-project/specs-actors/actors/builtin"

	"github.com/filecoin-project/lotus/chain/actors/adt"
	"github.com/filecoin-project/lotus/chain/types"
)

var Address = v0builtin.InitActorAddr

func Load(store adt.Store, act *types.Actor) (st State, err error) {
	switch act.Code {
	case v0builtin.StorageMinerActorCodeID:
		out := v0State{store: store}
		err := store.Get(store.Context(), act.Head, &out)
		if err != nil {
			return nil, err
		}
		return &out, nil
	}
	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
}

type State interface {
	cbor.Marshaler

	LoadDeadline(idx uint64) (Deadline, error)
	ForEachDeadline(cb func(idx uint64, dl Deadline) error) error
	NumDeadlines() (uint64, error)
	Info() (MinerInfo, error)
}

type Deadline interface {
	LoadPartition(idx uint64) (Partition, error)
	ForEachPartition(cb func(idx uint64, part Partition) error) error
}

type Partition interface {
	AllSectors() (bitfield.BitField, error)
	FaultySectors() (bitfield.BitField, error)
	RecoveringSectors() (bitfield.BitField, error)
	LiveSectors() (bitfield.BitField, error)
	ActiveSectors() (bitfield.BitField, error)
}

type MinerInfo struct {
	Owner                      address.Address   // Must be an ID-address.
	Worker                     address.Address   // Must be an ID-address.
	NewWorker                  address.Address   // Must be an ID-address.
	ControlAddresses           []address.Address // Must be an ID-addresses.
	WorkerChangeEpoch          abi.ChainEpoch
	PeerId                     *peer.ID
	Multiaddrs                 []abi.Multiaddrs
	SealProofType              abi.RegisteredSealProof
	SectorSize                 abi.SectorSize
	WindowPoStPartitionSectors uint64
}