package modules

import (
	"bytes"
	"context"
	"errors"
	"fmt"
	"net/http"
	"os"
	"path/filepath"
	"strings"
	"time"

	"go.uber.org/fx"
	"go.uber.org/multierr"
	"golang.org/x/xerrors"

	"github.com/filecoin-project/go-address"
	dtimpl "github.com/filecoin-project/go-data-transfer/impl"
	dtnet "github.com/filecoin-project/go-data-transfer/network"
	dtgstransport "github.com/filecoin-project/go-data-transfer/transport/graphsync"
	piecefilestore "github.com/filecoin-project/go-fil-markets/filestore"
	piecestoreimpl "github.com/filecoin-project/go-fil-markets/piecestore/impl"
	"github.com/filecoin-project/go-fil-markets/retrievalmarket"
	retrievalimpl "github.com/filecoin-project/go-fil-markets/retrievalmarket/impl"
	rmnet "github.com/filecoin-project/go-fil-markets/retrievalmarket/network"
	"github.com/filecoin-project/go-fil-markets/shared"
	"github.com/filecoin-project/go-fil-markets/storagemarket"
	storageimpl "github.com/filecoin-project/go-fil-markets/storagemarket/impl"
	"github.com/filecoin-project/go-fil-markets/storagemarket/impl/storedask"
	smnet "github.com/filecoin-project/go-fil-markets/storagemarket/network"
	"github.com/filecoin-project/go-jsonrpc/auth"
	"github.com/filecoin-project/go-paramfetch"
	"github.com/filecoin-project/go-state-types/abi"
	"github.com/filecoin-project/go-statestore"
	"github.com/filecoin-project/go-storedcounter"
	"github.com/ipfs/go-cid"
	"github.com/ipfs/go-datastore"
	"github.com/ipfs/go-datastore/namespace"
	graphsync "github.com/ipfs/go-graphsync/impl"
	gsnet "github.com/ipfs/go-graphsync/network"
	"github.com/ipfs/go-graphsync/storeutil"
	"github.com/libp2p/go-libp2p-core/host"

	sectorstorage "github.com/filecoin-project/lotus/extern/sector-storage"
	"github.com/filecoin-project/lotus/extern/sector-storage/ffiwrapper"
	"github.com/filecoin-project/lotus/extern/sector-storage/stores"
	sealing "github.com/filecoin-project/lotus/extern/storage-sealing"
	"github.com/filecoin-project/lotus/extern/storage-sealing/sealiface"

	"github.com/filecoin-project/lotus/api"
	"github.com/filecoin-project/lotus/api/v0api"
	"github.com/filecoin-project/lotus/api/v1api"
	"github.com/filecoin-project/lotus/blockstore"
	"github.com/filecoin-project/lotus/build"
	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
	"github.com/filecoin-project/lotus/chain/gen"
	"github.com/filecoin-project/lotus/chain/gen/slashfilter"
	"github.com/filecoin-project/lotus/chain/types"
	"github.com/filecoin-project/lotus/journal"
	"github.com/filecoin-project/lotus/markets"
	"github.com/filecoin-project/lotus/markets/dagstore"
	marketevents "github.com/filecoin-project/lotus/markets/loggers"
	"github.com/filecoin-project/lotus/markets/pricing"
	lotusminer "github.com/filecoin-project/lotus/miner"
	"github.com/filecoin-project/lotus/node/config"
	"github.com/filecoin-project/lotus/node/modules/dtypes"
	"github.com/filecoin-project/lotus/node/modules/helpers"
	"github.com/filecoin-project/lotus/node/repo"
	"github.com/filecoin-project/lotus/storage"
)

var StorageCounterDSPrefix = "/storage/nextid"

func minerAddrFromDS(ds dtypes.MetadataDS) (address.Address, error) {
	maddrb, err := ds.Get(datastore.NewKey("miner-address"))
	if err != nil {
		return address.Undef, err
	}

	return address.NewFromBytes(maddrb)
}

func GetParams(spt abi.RegisteredSealProof) error {
	ssize, err := spt.SectorSize()
	if err != nil {
		return err
	}

	// If built-in assets are disabled, we expect the user to have placed the right
	// parameters in the right location on the filesystem (/var/tmp/filecoin-proof-parameters).
	if build.DisableBuiltinAssets {
		return nil
	}

	// TODO: We should fetch the params for the actual proof type, not just based on the size.
	if err := paramfetch.GetParams(context.TODO(), build.ParametersJSON(), build.SrsJSON(), uint64(ssize)); err != nil {
		return xerrors.Errorf("fetching proof parameters: %w", err)
	}

	return nil
}

func MinerAddress(ds dtypes.MetadataDS) (dtypes.MinerAddress, error) {
	ma, err := minerAddrFromDS(ds)
	return dtypes.MinerAddress(ma), err
}

func MinerID(ma dtypes.MinerAddress) (dtypes.MinerID, error) {
	id, err := address.IDFromAddress(address.Address(ma))
	return dtypes.MinerID(id), err
}

func StorageNetworkName(ctx helpers.MetricsCtx, a v1api.FullNode) (dtypes.NetworkName, error) {
	if !build.Devnet {
		return "testnetnet", nil
	}
	return a.StateNetworkName(ctx)
}

func SealProofType(maddr dtypes.MinerAddress, fnapi v1api.FullNode) (abi.RegisteredSealProof, error) {
	mi, err := fnapi.StateMinerInfo(context.TODO(), address.Address(maddr), types.EmptyTSK)
	if err != nil {
		return 0, err
	}
	networkVersion, err := fnapi.StateNetworkVersion(context.TODO(), types.EmptyTSK)
	if err != nil {
		return 0, err
	}

	return miner.PreferredSealProofTypeFromWindowPoStType(networkVersion, mi.WindowPoStProofType)
}

type sidsc struct {
	sc *storedcounter.StoredCounter
}

func (s *sidsc) Next() (abi.SectorNumber, error) {
	i, err := s.sc.Next()
	return abi.SectorNumber(i), err
}

func SectorIDCounter(ds dtypes.MetadataDS) sealing.SectorIDCounter {
	sc := storedcounter.New(ds, datastore.NewKey(StorageCounterDSPrefix))
	return &sidsc{sc}
}

func AddressSelector(addrConf *config.MinerAddressConfig) func() (*storage.AddressSelector, error) {
	return func() (*storage.AddressSelector, error) {
		as := &storage.AddressSelector{}
		if addrConf == nil {
			return as, nil
		}

		as.DisableOwnerFallback = addrConf.DisableOwnerFallback
		as.DisableWorkerFallback = addrConf.DisableWorkerFallback

		for _, s := range addrConf.PreCommitControl {
			addr, err := address.NewFromString(s)
			if err != nil {
				return nil, xerrors.Errorf("parsing precommit control address: %w", err)
			}

			as.PreCommitControl = append(as.PreCommitControl, addr)
		}

		for _, s := range addrConf.CommitControl {
			addr, err := address.NewFromString(s)
			if err != nil {
				return nil, xerrors.Errorf("parsing commit control address: %w", err)
			}

			as.CommitControl = append(as.CommitControl, addr)
		}

		for _, s := range addrConf.TerminateControl {
			addr, err := address.NewFromString(s)
			if err != nil {
				return nil, xerrors.Errorf("parsing terminate control address: %w", err)
			}

			as.TerminateControl = append(as.TerminateControl, addr)
		}

		for _, s := range addrConf.DealPublishControl {
			addr, err := address.NewFromString(s)
			if err != nil {
				return nil, xerrors.Errorf("parsing deal publishing control address: %w", err)
			}

			as.DealPublishControl = append(as.DealPublishControl, addr)
		}

		return as, nil
	}
}

type StorageMinerParams struct {
	fx.In

	Lifecycle          fx.Lifecycle
	MetricsCtx         helpers.MetricsCtx
	API                v1api.FullNode
	MetadataDS         dtypes.MetadataDS
	Sealer             sectorstorage.SectorManager
	SectorIDCounter    sealing.SectorIDCounter
	Verifier           ffiwrapper.Verifier
	Prover             ffiwrapper.Prover
	GetSealingConfigFn dtypes.GetSealingConfigFunc
	Journal            journal.Journal
	AddrSel            *storage.AddressSelector
}

func StorageMiner(fc config.MinerFeeConfig) func(params StorageMinerParams) (*storage.Miner, error) {
	return func(params StorageMinerParams) (*storage.Miner, error) {
		var (
			ds     = params.MetadataDS
			mctx   = params.MetricsCtx
			lc     = params.Lifecycle
			api    = params.API
			sealer = params.Sealer
			sc     = params.SectorIDCounter
			verif  = params.Verifier
			prover = params.Prover
			gsd    = params.GetSealingConfigFn
			j      = params.Journal
			as     = params.AddrSel
		)

		maddr, err := minerAddrFromDS(ds)
		if err != nil {
			return nil, err
		}

		ctx := helpers.LifecycleCtx(mctx, lc)

		fps, err := storage.NewWindowedPoStScheduler(api, fc, as, sealer, verif, sealer, j, maddr)
		if err != nil {
			return nil, err
		}

		sm, err := storage.NewMiner(api, maddr, ds, sealer, sc, verif, prover, gsd, fc, j, as)
		if err != nil {
			return nil, err
		}

		lc.Append(fx.Hook{
			OnStart: func(context.Context) error {
				go fps.Run(ctx)
				return sm.Run(ctx)
			},
			OnStop: sm.Stop,
		})

		return sm, nil
	}
}

func HandleRetrieval(host host.Host, lc fx.Lifecycle, m retrievalmarket.RetrievalProvider, j journal.Journal) {
	m.OnReady(marketevents.ReadyLogger("retrieval provider"))
	lc.Append(fx.Hook{

		OnStart: func(ctx context.Context) error {
			m.SubscribeToEvents(marketevents.RetrievalProviderLogger)

			evtType := j.RegisterEventType("markets/retrieval/provider", "state_change")
			m.SubscribeToEvents(markets.RetrievalProviderJournaler(j, evtType))

			return m.Start(ctx)
		},
		OnStop: func(context.Context) error {
			return m.Stop()
		},
	})
}

func HandleDeals(mctx helpers.MetricsCtx, lc fx.Lifecycle, host host.Host, h storagemarket.StorageProvider, j journal.Journal) {
	ctx := helpers.LifecycleCtx(mctx, lc)
	h.OnReady(marketevents.ReadyLogger("storage provider"))
	lc.Append(fx.Hook{
		OnStart: func(context.Context) error {
			h.SubscribeToEvents(marketevents.StorageProviderLogger)

			evtType := j.RegisterEventType("markets/storage/provider", "state_change")
			h.SubscribeToEvents(markets.StorageProviderJournaler(j, evtType))

			return h.Start(ctx)
		},
		OnStop: func(context.Context) error {
			return h.Stop()
		},
	})
}

func HandleMigrateProviderFunds(lc fx.Lifecycle, ds dtypes.MetadataDS, node api.FullNode, minerAddress dtypes.MinerAddress) {
	lc.Append(fx.Hook{
		OnStart: func(ctx context.Context) error {
			b, err := ds.Get(datastore.NewKey("/marketfunds/provider"))
			if err != nil {
				if xerrors.Is(err, datastore.ErrNotFound) {
					return nil
				}
				return err
			}

			var value abi.TokenAmount
			if err = value.UnmarshalCBOR(bytes.NewReader(b)); err != nil {
				return err
			}
			ts, err := node.ChainHead(ctx)
			if err != nil {
				log.Errorf("provider funds migration - getting chain head: %v", err)
				return nil
			}

			mi, err := node.StateMinerInfo(ctx, address.Address(minerAddress), ts.Key())
			if err != nil {
				log.Errorf("provider funds migration - getting miner info %s: %v", minerAddress, err)
				return nil
			}

			_, err = node.MarketReserveFunds(ctx, mi.Worker, address.Address(minerAddress), value)
			if err != nil {
				log.Errorf("provider funds migration - reserving funds (wallet %s, addr %s, funds %d): %v",
					mi.Worker, minerAddress, value, err)
				return nil
			}

			return ds.Delete(datastore.NewKey("/marketfunds/provider"))
		},
	})
}

// NewProviderDAGServiceDataTransfer returns a data transfer manager that just
// uses the provider's Staging DAG service for transfers
func NewProviderDAGServiceDataTransfer(lc fx.Lifecycle, h host.Host, gs dtypes.StagingGraphsync, ds dtypes.MetadataDS, r repo.LockedRepo) (dtypes.ProviderDataTransfer, error) {
	net := dtnet.NewFromLibp2pHost(h)

	dtDs := namespace.Wrap(ds, datastore.NewKey("/datatransfer/provider/transfers"))
	transport := dtgstransport.NewTransport(h.ID(), gs)
	err := os.MkdirAll(filepath.Join(r.Path(), "data-transfer"), 0755) //nolint: gosec
	if err != nil && !os.IsExist(err) {
		return nil, err
	}

	dt, err := dtimpl.NewDataTransfer(dtDs, filepath.Join(r.Path(), "data-transfer"), net, transport)
	if err != nil {
		return nil, err
	}

	dt.OnReady(marketevents.ReadyLogger("provider data transfer"))
	lc.Append(fx.Hook{
		OnStart: func(ctx context.Context) error {
			dt.SubscribeToEvents(marketevents.DataTransferLogger)
			return dt.Start(ctx)
		},
		OnStop: func(ctx context.Context) error {
			return dt.Stop(ctx)
		},
	})
	return dt, nil
}

// NewProviderPieceStore creates a statestore for storing metadata about pieces
// shared by the storage and retrieval providers
func NewProviderPieceStore(lc fx.Lifecycle, ds dtypes.MetadataDS) (dtypes.ProviderPieceStore, error) {
	ps, err := piecestoreimpl.NewPieceStore(namespace.Wrap(ds, datastore.NewKey("/storagemarket")))
	if err != nil {
		return nil, err
	}
	ps.OnReady(marketevents.ReadyLogger("piecestore"))
	lc.Append(fx.Hook{
		OnStart: func(ctx context.Context) error {
			return ps.Start(ctx)
		},
	})
	return ps, nil
}

// StagingBlockstore creates a blockstore for staging blocks for a miner
// in a storage deal, prior to sealing
func StagingBlockstore(lc fx.Lifecycle, mctx helpers.MetricsCtx, r repo.LockedRepo) (dtypes.StagingBlockstore, error) {
	ctx := helpers.LifecycleCtx(mctx, lc)
	stagingds, err := r.Datastore(ctx, "/staging")
	if err != nil {
		return nil, err
	}

	return blockstore.FromDatastore(stagingds), nil
}

// StagingGraphsync creates a graphsync instance which reads and writes blocks
// to the StagingBlockstore
func StagingGraphsync(parallelTransfers uint64) func(mctx helpers.MetricsCtx, lc fx.Lifecycle, ibs dtypes.StagingBlockstore, h host.Host) dtypes.StagingGraphsync {
	return func(mctx helpers.MetricsCtx, lc fx.Lifecycle, ibs dtypes.StagingBlockstore, h host.Host) dtypes.StagingGraphsync {
		graphsyncNetwork := gsnet.NewFromLibp2pHost(h)
		loader := storeutil.LoaderForBlockstore(ibs)
		storer := storeutil.StorerForBlockstore(ibs)
		gs := graphsync.New(helpers.LifecycleCtx(mctx, lc), graphsyncNetwork, loader, storer, graphsync.RejectAllRequestsByDefault(), graphsync.MaxInProgressRequests(parallelTransfers))

		return gs
	}
}

func SetupBlockProducer(lc fx.Lifecycle, ds dtypes.MetadataDS, api v1api.FullNode, epp gen.WinningPoStProver, sf *slashfilter.SlashFilter, j journal.Journal) (*lotusminer.Miner, error) {
	minerAddr, err := minerAddrFromDS(ds)
	if err != nil {
		return nil, err
	}

	m := lotusminer.NewMiner(api, epp, minerAddr, sf, j)

	lc.Append(fx.Hook{
		OnStart: func(ctx context.Context) error {
			if err := m.Start(ctx); err != nil {
				return err
			}
			return nil
		},
		OnStop: func(ctx context.Context) error {
			return m.Stop(ctx)
		},
	})

	return m, nil
}

func NewStorageAsk(ctx helpers.MetricsCtx, fapi v1api.FullNode, ds dtypes.MetadataDS, minerAddress dtypes.MinerAddress, spn storagemarket.StorageProviderNode) (*storedask.StoredAsk, error) {

	mi, err := fapi.StateMinerInfo(ctx, address.Address(minerAddress), types.EmptyTSK)
	if err != nil {
		return nil, err
	}

	providerDs := namespace.Wrap(ds, datastore.NewKey("/deals/provider"))
	// legacy this was mistake where this key was place -- so we move the legacy key if need be
	err = shared.MoveKey(providerDs, "/latest-ask", "/storage-ask/latest")
	if err != nil {
		return nil, err
	}
	return storedask.NewStoredAsk(namespace.Wrap(providerDs, datastore.NewKey("/storage-ask")), datastore.NewKey("latest"), spn, address.Address(minerAddress),
		storagemarket.MaxPieceSize(abi.PaddedPieceSize(mi.SectorSize)))
}

func BasicDealFilter(user dtypes.StorageDealFilter) func(onlineOk dtypes.ConsiderOnlineStorageDealsConfigFunc,
	offlineOk dtypes.ConsiderOfflineStorageDealsConfigFunc,
	verifiedOk dtypes.ConsiderVerifiedStorageDealsConfigFunc,
	unverifiedOk dtypes.ConsiderUnverifiedStorageDealsConfigFunc,
	blocklistFunc dtypes.StorageDealPieceCidBlocklistConfigFunc,
	expectedSealTimeFunc dtypes.GetExpectedSealDurationFunc,
	startDelay dtypes.GetMaxDealStartDelayFunc,
	spn storagemarket.StorageProviderNode) dtypes.StorageDealFilter {
	return func(onlineOk dtypes.ConsiderOnlineStorageDealsConfigFunc,
		offlineOk dtypes.ConsiderOfflineStorageDealsConfigFunc,
		verifiedOk dtypes.ConsiderVerifiedStorageDealsConfigFunc,
		unverifiedOk dtypes.ConsiderUnverifiedStorageDealsConfigFunc,
		blocklistFunc dtypes.StorageDealPieceCidBlocklistConfigFunc,
		expectedSealTimeFunc dtypes.GetExpectedSealDurationFunc,
		startDelay dtypes.GetMaxDealStartDelayFunc,
		spn storagemarket.StorageProviderNode) dtypes.StorageDealFilter {

		return func(ctx context.Context, deal storagemarket.MinerDeal) (bool, string, error) {
			b, err := onlineOk()
			if err != nil {
				return false, "miner error", err
			}

			if deal.Ref != nil && deal.Ref.TransferType != storagemarket.TTManual && !b {
				log.Warnf("online storage deal consideration disabled; rejecting storage deal proposal from client: %s", deal.Client.String())
				return false, "miner is not considering online storage deals", nil
			}

			b, err = offlineOk()
			if err != nil {
				return false, "miner error", err
			}

			if deal.Ref != nil && deal.Ref.TransferType == storagemarket.TTManual && !b {
				log.Warnf("offline storage deal consideration disabled; rejecting storage deal proposal from client: %s", deal.Client.String())
				return false, "miner is not accepting offline storage deals", nil
			}

			b, err = verifiedOk()
			if err != nil {
				return false, "miner error", err
			}

			if deal.Proposal.VerifiedDeal && !b {
				log.Warnf("verified storage deal consideration disabled; rejecting storage deal proposal from client: %s", deal.Client.String())
				return false, "miner is not accepting verified storage deals", nil
			}

			b, err = unverifiedOk()
			if err != nil {
				return false, "miner error", err
			}

			if !deal.Proposal.VerifiedDeal && !b {
				log.Warnf("unverified storage deal consideration disabled; rejecting storage deal proposal from client: %s", deal.Client.String())
				return false, "miner is not accepting unverified storage deals", nil
			}

			blocklist, err := blocklistFunc()
			if err != nil {
				return false, "miner error", err
			}

			for idx := range blocklist {
				if deal.Proposal.PieceCID.Equals(blocklist[idx]) {
					log.Warnf("piece CID in proposal %s is blocklisted; rejecting storage deal proposal from client: %s", deal.Proposal.PieceCID, deal.Client.String())
					return false, fmt.Sprintf("miner has blocklisted piece CID %s", deal.Proposal.PieceCID), nil
				}
			}

			sealDuration, err := expectedSealTimeFunc()
			if err != nil {
				return false, "miner error", err
			}

			sealEpochs := sealDuration / (time.Duration(build.BlockDelaySecs) * time.Second)
			_, ht, err := spn.GetChainHead(ctx)
			if err != nil {
				return false, "failed to get chain head", err
			}
			earliest := abi.ChainEpoch(sealEpochs) + ht
			if deal.Proposal.StartEpoch < earliest {
				log.Warnw("proposed deal would start before sealing can be completed; rejecting storage deal proposal from client", "piece_cid", deal.Proposal.PieceCID, "client", deal.Client.String(), "seal_duration", sealDuration, "earliest", earliest, "curepoch", ht)
				return false, fmt.Sprintf("proposed deal start epoch %s too early, cannot seal a sector before %s", deal.Proposal.StartEpoch, earliest), nil
			}

			sd, err := startDelay()
			if err != nil {
				return false, "miner error", err
			}

			// Reject if it's more than 7 days in the future
			// TODO: read from cfg
			maxStartEpoch := earliest + abi.ChainEpoch(uint64(sd.Seconds())/build.BlockDelaySecs)
			if deal.Proposal.StartEpoch > maxStartEpoch {
				return false, fmt.Sprintf("deal start epoch is too far in the future: %s > %s", deal.Proposal.StartEpoch, maxStartEpoch), nil
			}

			if user != nil {
				return user(ctx, deal)
			}

			return true, "", nil
		}
	}
}

func StorageProvider(minerAddress dtypes.MinerAddress,
	storedAsk *storedask.StoredAsk,
	h host.Host, ds dtypes.MetadataDS,
	r repo.LockedRepo,
	pieceStore dtypes.ProviderPieceStore,
	dataTransfer dtypes.ProviderDataTransfer,
	spn storagemarket.StorageProviderNode,
	df dtypes.StorageDealFilter,
	dsw *dagstore.Wrapper,
) (storagemarket.StorageProvider, error) {
	net := smnet.NewFromLibp2pHost(h)

	dir := filepath.Join(r.Path(), "deal-staging")

	// migrate temporary files that were created directly under the repo, by
	// moving them to the new directory and symlinking them.
	oldDir := r.Path()
	if err := migrateDealStaging(oldDir, dir); err != nil {
		return nil, xerrors.Errorf("failed to make deal staging directory %w", err)
	}

	store, err := piecefilestore.NewLocalFileStore(piecefilestore.OsPath(dir))
	if err != nil {
		return nil, err
	}

	opt := storageimpl.CustomDealDecisionLogic(storageimpl.DealDeciderFunc(df))

	return storageimpl.NewProvider(
		net,
		namespace.Wrap(ds, datastore.NewKey("/deals/provider")),
		store,
		dsw,
		pieceStore,
		dataTransfer,
		spn,
		address.Address(minerAddress),
		storedAsk,
		opt,
	)
}

func RetrievalDealFilter(userFilter dtypes.RetrievalDealFilter) func(onlineOk dtypes.ConsiderOnlineRetrievalDealsConfigFunc,
	offlineOk dtypes.ConsiderOfflineRetrievalDealsConfigFunc) dtypes.RetrievalDealFilter {
	return func(onlineOk dtypes.ConsiderOnlineRetrievalDealsConfigFunc,
		offlineOk dtypes.ConsiderOfflineRetrievalDealsConfigFunc) dtypes.RetrievalDealFilter {
		return func(ctx context.Context, state retrievalmarket.ProviderDealState) (bool, string, error) {
			b, err := onlineOk()
			if err != nil {
				return false, "miner error", err
			}

			if !b {
				log.Warn("online retrieval deal consideration disabled; rejecting retrieval deal proposal from client")
				return false, "miner is not accepting online retrieval deals", nil
			}

			b, err = offlineOk()
			if err != nil {
				return false, "miner error", err
			}

			if !b {
				log.Info("offline retrieval has not been implemented yet")
			}

			if userFilter != nil {
				return userFilter(ctx, state)
			}

			return true, "", nil
		}
	}
}

func RetrievalNetwork(h host.Host) rmnet.RetrievalMarketNetwork {
	return rmnet.NewFromLibp2pHost(h)
}

// RetrievalPricingFunc configures the pricing function to use for retrieval deals.
func RetrievalPricingFunc(cfg config.DealmakingConfig) func(_ dtypes.ConsiderOnlineRetrievalDealsConfigFunc,
	_ dtypes.ConsiderOfflineRetrievalDealsConfigFunc) dtypes.RetrievalPricingFunc {

	return func(_ dtypes.ConsiderOnlineRetrievalDealsConfigFunc,
		_ dtypes.ConsiderOfflineRetrievalDealsConfigFunc) dtypes.RetrievalPricingFunc {
		if cfg.RetrievalPricing.Strategy == config.RetrievalPricingExternalMode {
			return pricing.ExternalRetrievalPricingFunc(cfg.RetrievalPricing.External.Path)
		}

		return retrievalimpl.DefaultPricingFunc(cfg.RetrievalPricing.Default.VerifiedDealsFreeTransfer)
	}
}

// RetrievalProvider creates a new retrieval provider attached to the provider blockstore
func RetrievalProvider(
	maddr dtypes.MinerAddress,
	adapter retrievalmarket.RetrievalProviderNode,
	sa retrievalmarket.SectorAccessor,
	netwk rmnet.RetrievalMarketNetwork,
	ds dtypes.MetadataDS,
	pieceStore dtypes.ProviderPieceStore,
	dt dtypes.ProviderDataTransfer,
	pricingFnc dtypes.RetrievalPricingFunc,
	userFilter dtypes.RetrievalDealFilter,
	dagStore *dagstore.Wrapper,
) (retrievalmarket.RetrievalProvider, error) {
	opt := retrievalimpl.DealDeciderOpt(retrievalimpl.DealDecider(userFilter))
	return retrievalimpl.NewProvider(
		address.Address(maddr),
		adapter,
		sa,
		netwk,
		pieceStore,
		dagStore,
		dt,
		namespace.Wrap(ds, datastore.NewKey("/retrievals/provider")),
		retrievalimpl.RetrievalPricingFunc(pricingFnc),
		opt,
	)
}

var WorkerCallsPrefix = datastore.NewKey("/worker/calls")
var ManagerWorkPrefix = datastore.NewKey("/stmgr/calls")

func LocalStorage(mctx helpers.MetricsCtx, lc fx.Lifecycle, ls stores.LocalStorage, si stores.SectorIndex, urls stores.URLs) (*stores.Local, error) {
	ctx := helpers.LifecycleCtx(mctx, lc)
	return stores.NewLocal(ctx, ls, si, urls)
}

func RemoteStorage(lstor *stores.Local, si stores.SectorIndex, sa sectorstorage.StorageAuth, sc sectorstorage.SealerConfig) *stores.Remote {
	return stores.NewRemote(lstor, si, http.Header(sa), sc.ParallelFetchLimit, &stores.DefaultPartialFileHandler{})
}

func SectorStorage(mctx helpers.MetricsCtx, lc fx.Lifecycle, lstor *stores.Local, stor *stores.Remote, ls stores.LocalStorage, si stores.SectorIndex, sc sectorstorage.SealerConfig, ds dtypes.MetadataDS) (*sectorstorage.Manager, error) {
	ctx := helpers.LifecycleCtx(mctx, lc)

	wsts := statestore.New(namespace.Wrap(ds, WorkerCallsPrefix))
	smsts := statestore.New(namespace.Wrap(ds, ManagerWorkPrefix))

	sst, err := sectorstorage.New(ctx, lstor, stor, ls, si, sc, wsts, smsts)
	if err != nil {
		return nil, err
	}

	lc.Append(fx.Hook{
		OnStop: sst.Close,
	})

	return sst, nil
}

func StorageAuth(ctx helpers.MetricsCtx, ca v0api.Common) (sectorstorage.StorageAuth, error) {
	token, err := ca.AuthNew(ctx, []auth.Permission{"admin"})
	if err != nil {
		return nil, xerrors.Errorf("creating storage auth header: %w", err)
	}

	headers := http.Header{}
	headers.Add("Authorization", "Bearer "+string(token))
	return sectorstorage.StorageAuth(headers), nil
}

func StorageAuthWithURL(apiInfo string) func(ctx helpers.MetricsCtx, ca v0api.Common) (sectorstorage.StorageAuth, error) {
	return func(ctx helpers.MetricsCtx, ca v0api.Common) (sectorstorage.StorageAuth, error) {
		s := strings.Split(apiInfo, ":")
		if len(s) != 2 {
			return nil, errors.New("unexpected format of `apiInfo`")
		}
		headers := http.Header{}
		headers.Add("Authorization", "Bearer "+s[0])
		return sectorstorage.StorageAuth(headers), nil
	}
}

func NewConsiderOnlineStorageDealsConfigFunc(r repo.LockedRepo) (dtypes.ConsiderOnlineStorageDealsConfigFunc, error) {
	return func() (out bool, err error) {
		err = readCfg(r, func(cfg *config.StorageMiner) {
			out = cfg.Dealmaking.ConsiderOnlineStorageDeals
		})
		return
	}, nil
}

func NewSetConsideringOnlineStorageDealsFunc(r repo.LockedRepo) (dtypes.SetConsiderOnlineStorageDealsConfigFunc, error) {
	return func(b bool) (err error) {
		err = mutateCfg(r, func(cfg *config.StorageMiner) {
			cfg.Dealmaking.ConsiderOnlineStorageDeals = b
		})
		return
	}, nil
}

func NewConsiderOnlineRetrievalDealsConfigFunc(r repo.LockedRepo) (dtypes.ConsiderOnlineRetrievalDealsConfigFunc, error) {
	return func() (out bool, err error) {
		err = readCfg(r, func(cfg *config.StorageMiner) {
			out = cfg.Dealmaking.ConsiderOnlineRetrievalDeals
		})
		return
	}, nil
}

func NewSetConsiderOnlineRetrievalDealsConfigFunc(r repo.LockedRepo) (dtypes.SetConsiderOnlineRetrievalDealsConfigFunc, error) {
	return func(b bool) (err error) {
		err = mutateCfg(r, func(cfg *config.StorageMiner) {
			cfg.Dealmaking.ConsiderOnlineRetrievalDeals = b
		})
		return
	}, nil
}

func NewStorageDealPieceCidBlocklistConfigFunc(r repo.LockedRepo) (dtypes.StorageDealPieceCidBlocklistConfigFunc, error) {
	return func() (out []cid.Cid, err error) {
		err = readCfg(r, func(cfg *config.StorageMiner) {
			out = cfg.Dealmaking.PieceCidBlocklist
		})
		return
	}, nil
}

func NewSetStorageDealPieceCidBlocklistConfigFunc(r repo.LockedRepo) (dtypes.SetStorageDealPieceCidBlocklistConfigFunc, error) {
	return func(blocklist []cid.Cid) (err error) {
		err = mutateCfg(r, func(cfg *config.StorageMiner) {
			cfg.Dealmaking.PieceCidBlocklist = blocklist
		})
		return
	}, nil
}

func NewConsiderOfflineStorageDealsConfigFunc(r repo.LockedRepo) (dtypes.ConsiderOfflineStorageDealsConfigFunc, error) {
	return func() (out bool, err error) {
		err = readCfg(r, func(cfg *config.StorageMiner) {
			out = cfg.Dealmaking.ConsiderOfflineStorageDeals
		})
		return
	}, nil
}

func NewSetConsideringOfflineStorageDealsFunc(r repo.LockedRepo) (dtypes.SetConsiderOfflineStorageDealsConfigFunc, error) {
	return func(b bool) (err error) {
		err = mutateCfg(r, func(cfg *config.StorageMiner) {
			cfg.Dealmaking.ConsiderOfflineStorageDeals = b
		})
		return
	}, nil
}

func NewConsiderOfflineRetrievalDealsConfigFunc(r repo.LockedRepo) (dtypes.ConsiderOfflineRetrievalDealsConfigFunc, error) {
	return func() (out bool, err error) {
		err = readCfg(r, func(cfg *config.StorageMiner) {
			out = cfg.Dealmaking.ConsiderOfflineRetrievalDeals
		})
		return
	}, nil
}

func NewSetConsiderOfflineRetrievalDealsConfigFunc(r repo.LockedRepo) (dtypes.SetConsiderOfflineRetrievalDealsConfigFunc, error) {
	return func(b bool) (err error) {
		err = mutateCfg(r, func(cfg *config.StorageMiner) {
			cfg.Dealmaking.ConsiderOfflineRetrievalDeals = b
		})
		return
	}, nil
}

func NewConsiderVerifiedStorageDealsConfigFunc(r repo.LockedRepo) (dtypes.ConsiderVerifiedStorageDealsConfigFunc, error) {
	return func() (out bool, err error) {
		err = readCfg(r, func(cfg *config.StorageMiner) {
			out = cfg.Dealmaking.ConsiderVerifiedStorageDeals
		})
		return
	}, nil
}

func NewSetConsideringVerifiedStorageDealsFunc(r repo.LockedRepo) (dtypes.SetConsiderVerifiedStorageDealsConfigFunc, error) {
	return func(b bool) (err error) {
		err = mutateCfg(r, func(cfg *config.StorageMiner) {
			cfg.Dealmaking.ConsiderVerifiedStorageDeals = b
		})
		return
	}, nil
}

func NewConsiderUnverifiedStorageDealsConfigFunc(r repo.LockedRepo) (dtypes.ConsiderUnverifiedStorageDealsConfigFunc, error) {
	return func() (out bool, err error) {
		err = readCfg(r, func(cfg *config.StorageMiner) {
			out = cfg.Dealmaking.ConsiderUnverifiedStorageDeals
		})
		return
	}, nil
}

func NewSetConsideringUnverifiedStorageDealsFunc(r repo.LockedRepo) (dtypes.SetConsiderUnverifiedStorageDealsConfigFunc, error) {
	return func(b bool) (err error) {
		err = mutateCfg(r, func(cfg *config.StorageMiner) {
			cfg.Dealmaking.ConsiderUnverifiedStorageDeals = b
		})
		return
	}, nil
}

func NewSetSealConfigFunc(r repo.LockedRepo) (dtypes.SetSealingConfigFunc, error) {
	return func(cfg sealiface.Config) (err error) {
		err = mutateCfg(r, func(c *config.StorageMiner) {
			c.Sealing = config.SealingConfig{
				MaxWaitDealsSectors:       cfg.MaxWaitDealsSectors,
				MaxSealingSectors:         cfg.MaxSealingSectors,
				MaxSealingSectorsForDeals: cfg.MaxSealingSectorsForDeals,
				WaitDealsDelay:            config.Duration(cfg.WaitDealsDelay),
				AlwaysKeepUnsealedCopy:    cfg.AlwaysKeepUnsealedCopy,
				FinalizeEarly:             cfg.FinalizeEarly,

				CollateralFromMinerBalance: cfg.CollateralFromMinerBalance,
				AvailableBalanceBuffer:     types.FIL(cfg.AvailableBalanceBuffer),
				DisableCollateralFallback:  cfg.DisableCollateralFallback,

				BatchPreCommits:     cfg.BatchPreCommits,
				MaxPreCommitBatch:   cfg.MaxPreCommitBatch,
				PreCommitBatchWait:  config.Duration(cfg.PreCommitBatchWait),
				PreCommitBatchSlack: config.Duration(cfg.PreCommitBatchSlack),

				AggregateCommits:      cfg.AggregateCommits,
				MinCommitBatch:        cfg.MinCommitBatch,
				MaxCommitBatch:        cfg.MaxCommitBatch,
				CommitBatchWait:       config.Duration(cfg.CommitBatchWait),
				CommitBatchSlack:      config.Duration(cfg.CommitBatchSlack),
				AggregateAboveBaseFee: types.FIL(cfg.AggregateAboveBaseFee),

				TerminateBatchMax:  cfg.TerminateBatchMax,
				TerminateBatchMin:  cfg.TerminateBatchMin,
				TerminateBatchWait: config.Duration(cfg.TerminateBatchWait),
			}
		})
		return
	}, nil
}

func ToSealingConfig(cfg *config.StorageMiner) sealiface.Config {
	return sealiface.Config{
		MaxWaitDealsSectors:       cfg.Sealing.MaxWaitDealsSectors,
		MaxSealingSectors:         cfg.Sealing.MaxSealingSectors,
		MaxSealingSectorsForDeals: cfg.Sealing.MaxSealingSectorsForDeals,
		WaitDealsDelay:            time.Duration(cfg.Sealing.WaitDealsDelay),
		AlwaysKeepUnsealedCopy:    cfg.Sealing.AlwaysKeepUnsealedCopy,
		FinalizeEarly:             cfg.Sealing.FinalizeEarly,

		CollateralFromMinerBalance: cfg.Sealing.CollateralFromMinerBalance,
		AvailableBalanceBuffer:     types.BigInt(cfg.Sealing.AvailableBalanceBuffer),
		DisableCollateralFallback:  cfg.Sealing.DisableCollateralFallback,

		BatchPreCommits:     cfg.Sealing.BatchPreCommits,
		MaxPreCommitBatch:   cfg.Sealing.MaxPreCommitBatch,
		PreCommitBatchWait:  time.Duration(cfg.Sealing.PreCommitBatchWait),
		PreCommitBatchSlack: time.Duration(cfg.Sealing.PreCommitBatchSlack),

		AggregateCommits:      cfg.Sealing.AggregateCommits,
		MinCommitBatch:        cfg.Sealing.MinCommitBatch,
		MaxCommitBatch:        cfg.Sealing.MaxCommitBatch,
		CommitBatchWait:       time.Duration(cfg.Sealing.CommitBatchWait),
		CommitBatchSlack:      time.Duration(cfg.Sealing.CommitBatchSlack),
		AggregateAboveBaseFee: types.BigInt(cfg.Sealing.AggregateAboveBaseFee),

		TerminateBatchMax:  cfg.Sealing.TerminateBatchMax,
		TerminateBatchMin:  cfg.Sealing.TerminateBatchMin,
		TerminateBatchWait: time.Duration(cfg.Sealing.TerminateBatchWait),
	}
}

func NewGetSealConfigFunc(r repo.LockedRepo) (dtypes.GetSealingConfigFunc, error) {
	return func() (out sealiface.Config, err error) {
		err = readCfg(r, func(cfg *config.StorageMiner) {
			out = ToSealingConfig(cfg)
		})
		return
	}, nil
}

func NewSetExpectedSealDurationFunc(r repo.LockedRepo) (dtypes.SetExpectedSealDurationFunc, error) {
	return func(delay time.Duration) (err error) {
		err = mutateCfg(r, func(cfg *config.StorageMiner) {
			cfg.Dealmaking.ExpectedSealDuration = config.Duration(delay)
		})
		return
	}, nil
}

func NewGetExpectedSealDurationFunc(r repo.LockedRepo) (dtypes.GetExpectedSealDurationFunc, error) {
	return func() (out time.Duration, err error) {
		err = readCfg(r, func(cfg *config.StorageMiner) {
			out = time.Duration(cfg.Dealmaking.ExpectedSealDuration)
		})
		return
	}, nil
}

func NewSetMaxDealStartDelayFunc(r repo.LockedRepo) (dtypes.SetMaxDealStartDelayFunc, error) {
	return func(delay time.Duration) (err error) {
		err = mutateCfg(r, func(cfg *config.StorageMiner) {
			cfg.Dealmaking.MaxDealStartDelay = config.Duration(delay)
		})
		return
	}, nil
}

func NewGetMaxDealStartDelayFunc(r repo.LockedRepo) (dtypes.GetMaxDealStartDelayFunc, error) {
	return func() (out time.Duration, err error) {
		err = readCfg(r, func(cfg *config.StorageMiner) {
			out = time.Duration(cfg.Dealmaking.MaxDealStartDelay)
		})
		return
	}, nil
}

func readCfg(r repo.LockedRepo, accessor func(*config.StorageMiner)) error {
	raw, err := r.Config()
	if err != nil {
		return err
	}

	cfg, ok := raw.(*config.StorageMiner)
	if !ok {
		return xerrors.New("expected address of config.StorageMiner")
	}

	accessor(cfg)

	return nil
}

func mutateCfg(r repo.LockedRepo, mutator func(*config.StorageMiner)) error {
	var typeErr error

	setConfigErr := r.SetConfig(func(raw interface{}) {
		cfg, ok := raw.(*config.StorageMiner)
		if !ok {
			typeErr = errors.New("expected miner config")
			return
		}

		mutator(cfg)
	})

	return multierr.Combine(typeErr, setConfigErr)
}

func migrateDealStaging(oldPath, newPath string) error {
	dirInfo, err := os.Stat(newPath)
	if err == nil {
		if !dirInfo.IsDir() {
			return xerrors.Errorf("%s is not a directory", newPath)
		}
		// The newPath exists already, below migration has already occurred.
		return nil
	}

	// if the directory doesn't exist, create it
	if os.IsNotExist(err) {
		if err := os.MkdirAll(newPath, 0755); err != nil {
			return xerrors.Errorf("failed to mk directory %s for deal staging: %w", newPath, err)
		}
	} else { // if we failed for other reasons, abort.
		return err
	}

	// if this is the first time we created the directory, symlink all staged deals into it. "Migration"
	// get a list of files in the miner repo
	dirEntries, err := os.ReadDir(oldPath)
	if err != nil {
		return xerrors.Errorf("failed to list directory %s for deal staging: %w", oldPath, err)
	}

	for _, entry := range dirEntries {
		// ignore directories, they are not the deals.
		if entry.IsDir() {
			continue
		}
		// the FileStore from fil-storage-market creates temporary staged deal files with the pattern "fstmp"
		// https://github.com/filecoin-project/go-fil-markets/blob/00ff81e477d846ac0cb58a0c7d1c2e9afb5ee1db/filestore/filestore.go#L69
		name := entry.Name()
		if strings.Contains(name, "fstmp") {
			// from the miner repo
			oldPath := filepath.Join(oldPath, name)
			// to its subdir "deal-staging"
			newPath := filepath.Join(newPath, name)
			// create a symbolic link in the new deal staging directory to preserve existing staged deals.
			// all future staged deals will be created here.
			if err := os.Rename(oldPath, newPath); err != nil {
				return xerrors.Errorf("failed to move %s to %s: %w", oldPath, newPath, err)
			}
			if err := os.Symlink(newPath, oldPath); err != nil {
				return xerrors.Errorf("failed to symlink %s to %s: %w", oldPath, newPath, err)
			}
			log.Infow("symlinked staged deal", "from", oldPath, "to", newPath)
		}
	}
	return nil
}

func ExtractEnabledMinerSubsystems(cfg config.MinerSubsystemConfig) (res api.MinerSubsystems) {
	if cfg.EnableMining {
		res = append(res, api.SubsystemMining)
	}
	if cfg.EnableSealing {
		res = append(res, api.SubsystemSealing)
	}
	if cfg.EnableSectorStorage {
		res = append(res, api.SubsystemSectorStorage)
	}
	if cfg.EnableMarkets {
		res = append(res, api.SubsystemMarkets)
	}
	return res
}