package main

import (
	"os"

	logging "github.com/ipfs/go-log/v2"
	"gopkg.in/urfave/cli.v2"

	"github.com/filecoin-project/lotus/build"
	"github.com/filecoin-project/lotus/lib/lotuslog"
	"github.com/filecoin-project/lotus/node/repo"
)

var log = logging.Logger("main")

const (
	workers   = 1 // TODO: Configurability
	transfers = 1
)

func main() {
	lotuslog.SetupLogLevels()

	log.Info("Starting lotus worker")

	local := []*cli.Command{
		runCmd,
	}

	app := &cli.App{
		Name:    "lotus-seal-worker",
		Usage:   "Remote storage miner worker",
		Version: build.UserVersion,
		Flags: []cli.Flag{
			&cli.StringFlag{
				Name:    "repo",
				EnvVars: []string{"WORKER_PATH"},
				Value:   "~/.lotusworker", // TODO: Consider XDG_DATA_HOME
			},
			&cli.StringFlag{
				Name:    "storagerepo",
				EnvVars: []string{"LOTUS_STORAGE_PATH"},
				Value:   "~/.lotusstorage", // TODO: Consider XDG_DATA_HOME
			},
			&cli.BoolFlag{
				Name:  "enable-gpu-proving",
				Usage: "enable use of GPU for mining operations",
				Value: true,
			},
			&cli.BoolFlag{
				Name: "no-precommit",
			},
			&cli.BoolFlag{
				Name: "no-commit",
			},
		},

		Commands: local,
	}
	app.Setup()
	app.Metadata["repoType"] = repo.StorageMiner

	if err := app.Run(os.Args); err != nil {
		log.Warnf("%+v", err)
		return
	}
}

type limits struct {
	workLimit     chan struct{}
	transferLimit chan struct{}
}

var runCmd = &cli.Command{
	Name:  "run",
	Usage: "Start lotus worker",
	Action: func(cctx *cli.Context) error {
		/*	if !cctx.Bool("enable-gpu-proving") {
				os.Setenv("BELLMAN_NO_GPU", "true")
			}

			nodeApi, closer, err := lcli.GetStorageMinerAPI(cctx)
			if err != nil {
				return xerrors.Errorf("getting miner api: %w", err)
			}
			defer closer()
			ctx := lcli.ReqContext(cctx)

			ainfo, err := lcli.GetAPIInfo(cctx, repo.StorageMiner)
			if err != nil {
				return xerrors.Errorf("could not get api info: %w", err)
			}
			_, storageAddr, err := manet.DialArgs(ainfo.Addr)

			r, err := homedir.Expand(cctx.String("repo"))
			if err != nil {
				return err
			}

			v, err := nodeApi.Version(ctx)
			if err != nil {
				return err
			}
			if v.APIVersion != build.APIVersion {
				return xerrors.Errorf("lotus-storage-miner API version doesn't match: local: ", api.Version{APIVersion: build.APIVersion})
			}

			go func() {
				<-ctx.Done()
				log.Warn("Shutting down..")
			}()

			limiter := &limits{
				workLimit:     make(chan struct{}, workers),
				transferLimit: make(chan struct{}, transfers),
			}

			act, err := nodeApi.ActorAddress(ctx)
			if err != nil {
				return err
			}
			ssize, err := nodeApi.ActorSectorSize(ctx, act)
			if err != nil {
				return err
			}

			if err := paramfetch.GetParams(build.ParametersJson(), uint64(ssize)); err != nil {
				return xerrors.Errorf("get params: %w", err)
			}

			/*ppt, spt, err := api.ProofTypeFromSectorSize(ssize)
			if err != nil {
				return err
			}

			/*sb, err := sectorbuilder.NewStandalone(&sectorbuilder.Config{
				SealProofType: spt,
				PoStProofType: ppt,
				Miner:         act,
				WorkerThreads: workers,
				Paths:         sectorbuilder.SimplePath(r),
			})
			if err != nil {
				return err
			}

			nQueues := workers + transfers
			var wg sync.WaitGroup
			wg.Add(nQueues)

			for i := 0; i < nQueues; i++ {
				go func() {
					defer wg.Done()

				/*	if err := acceptJobs(ctx, nodeApi, sb, limiter, "http://"+storageAddr, ainfo.AuthHeader(), r, cctx.Bool("no-precommit"), cctx.Bool("no-commit")); err != nil {
						log.Warnf("%+v", err)
						return
					}
				}()
			}

			wg.Wait()*/
		return nil
	},
}