name

var Dms3NsCmd = &cmds.Command{
	Helptext: cmds.HelpText{
		Tagline: "Resolve DMS3NS names.",
		ShortDescription: `
DMS3NS is a PKI namespace, where names are the hashes of public keys, and
the private key enables publishing new (signed) values. In both publish
and resolve, the default name used is the node's own PeerID,
which is the hash of its public key.
`,
		LongDescription: `
DMS3NS is a PKI namespace, where names are the hashes of public keys, and
the private key enables publishing new (signed) values. In both publish
and resolve, the default name used is the node's own PeerID,
which is the hash of its public key.

You can use the 'dms3 key' commands to list and generate more names and their
respective keys.

Examples:

Resolve the value of your name:

  > dms3 name resolve
  /dms3/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy

Resolve the value of another name:

  > dms3 name resolve QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ
  /dms3/QmSiTko9JZyabH56y2fussEt1A5oDqsFXB3CkvAqraFryz

Resolve the value of a dnslink:

  > dms3 name resolve dms3.io
  /dms3/QmaBvfZooxWkrv7D3r8LS9moNjzD2o525XMZze69hhoxf5

`,
	},

	Arguments: []cmds.Argument{
		cmds.StringArg("name", false, false, "The DMS3NS name to resolve. Defaults to your node's peerID."),
	},
	Options: []cmds.Option{
		cmds.BoolOption(recursiveOptionName, "r", "Resolve until the result is not an DMS3NS name.").WithDefault(true),
		cmds.BoolOption(nocacheOptionName, "n", "Do not use cached entries."),
		cmds.UintOption(dhtRecordCountOptionName, "dhtrc", "Number of records to request for DHT resolution."),
		cmds.StringOption(dhtTimeoutOptionName, "dhtt", "Max time to collect values during DHT resolution eg \"30s\". Pass 0 for no timeout."),
		cmds.BoolOption(streamOptionName, "s", "Stream entries as they are found."),
	},
	Run: func(req *cmds.Request, res cmds.ResponseEmitter, env cmds.Environment) error {
		api, err := cmdenv.GetApi(env, req)
		if err != nil {
			return err
		}

		nocache, _ := req.Options["nocache"].(bool)

		var name string
		if len(req.Arguments) == 0 {
			self, err := api.Key().Self(req.Context)
			if err != nil {
				return err
			}
			name = self.ID().Pretty()
		} else {
			name = req.Arguments[0]
		}

		recursive, _ := req.Options[recursiveOptionName].(bool)
		rc, rcok := req.Options[dhtRecordCountOptionName].(uint)
		dhtt, dhttok := req.Options[dhtTimeoutOptionName].(string)
		stream, _ := req.Options[streamOptionName].(bool)

		opts := []options.NameResolveOption{
			options.Name.Cache(!nocache),
		}

		if !recursive {
			opts = append(opts, options.Name.ResolveOption(nsopts.Depth(1)))
		}
		if rcok {
			opts = append(opts, options.Name.ResolveOption(nsopts.DhtRecordCount(rc)))
		}
		if dhttok {
			d, err := time.ParseDuration(dhtt)
			if err != nil {
				return err
			}
			if d < 0 {
				return errors.New("DHT timeout value must be >= 0")
			}
			opts = append(opts, options.Name.ResolveOption(nsopts.DhtTimeout(d)))
		}

		if !strings.HasPrefix(name, "/dms3ns/") {
			name = "/dms3ns/" + name
		}

		if !stream {
			output, err := api.Name().Resolve(req.Context, name, opts...)
			if err != nil && (recursive || err != namesys.ErrResolveRecursion) {
				return err
			}

			return cmds.EmitOnce(res, &ResolvedPath{path.FromString(output.String())})
		}

		output, err := api.Name().Search(req.Context, name, opts...)
		if err != nil {
			return err
		}

		for v := range output {
			if v.Err != nil && (recursive || v.Err != namesys.ErrResolveRecursion) {
				return v.Err
			}
			if err := res.Emit(&ResolvedPath{path.FromString(v.Path.String())}); err != nil {
				return err
			}

		}

		return nil
	},
	Encoders: cmds.EncoderMap{
		cmds.Text: cmds.MakeTypedEncoder(func(req *cmds.Request, w io.Writer, rp *ResolvedPath) error {
			_, err := fmt.Fprintln(w, rp.Path)
			return err
		}),
	},
	Type: ResolvedPath{},
}

var Dms3NsPubsubCmd = &cmds.Command{
	Helptext: cmds.HelpText{
		Tagline: "DMS3NS pubsub management",
		ShortDescription: `
Manage and inspect the state of the DMS3NS pubsub resolver.

Note: this command is experimental and subject to change as the system is refined
`,
	},
	Subcommands: map[string]*cmds.Command{
		"state":  dms3nspsStateCmd,
		"subs":   dms3nspsSubsCmd,
		"cancel": dms3nspsCancelCmd,
	},
}

var NameCmd = &cmds.Command{
	Helptext: cmds.HelpText{
		Tagline: "Publish and resolve DMS3NS names.",
		ShortDescription: `
DMS3NS is a PKI namespace, where names are the hashes of public keys, and
the private key enables publishing new (signed) values. In both publish
and resolve, the default name used is the node's own PeerID,
which is the hash of its public key.
`,
		LongDescription: `
DMS3NS is a PKI namespace, where names are the hashes of public keys, and
the private key enables publishing new (signed) values. In both publish
and resolve, the default name used is the node's own PeerID,
which is the hash of its public key.

You can use the 'dms3 key' commands to list and generate more names and their
respective keys.

Examples:

Publish an <dms3-path> with your default name:

  > dms3 name publish /dms3/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy
  Published to QmbCMUZw6JFeZ7Wp9jkzbye3Fzp2GGcPgC3nmeUjfVF87n: /dms3/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy

Publish an <dms3-path> with another name, added by an 'dms3 key' command:

  > dms3 key gen --type=rsa --size=2048 mykey
  > dms3 name publish --key=mykey /dms3/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy
  Published to QmSrPmbaUKA3ZodhzPWZnpFgcPMFWF4QsxXbkWfEptTBJd: /dms3/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy

Resolve the value of your name:

  > dms3 name resolve
  /dms3/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy

Resolve the value of another name:

  > dms3 name resolve QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ
  /dms3/QmSiTko9JZyabH56y2fussEt1A5oDqsFXB3CkvAqraFryz

Resolve the value of a dnslink:

  > dms3 name resolve dms3.io
  /dms3/QmaBvfZooxWkrv7D3r8LS9moNjzD2o525XMZze69hhoxf5

`,
	},

	Subcommands: map[string]*cmds.Command{
		"publish": PublishCmd,
		"resolve": Dms3NsCmd,
		"pubsub":  Dms3NsPubsubCmd,
	},
}

var PublishCmd = &cmds.Command{
	Helptext: cmds.HelpText{
		Tagline: "Publish DMS3NS names.",
		ShortDescription: `
DMS3NS is a PKI namespace, where names are the hashes of public keys, and
the private key enables publishing new (signed) values. In both publish
and resolve, the default name used is the node's own PeerID,
which is the hash of its public key.
`,
		LongDescription: `
DMS3NS is a PKI namespace, where names are the hashes of public keys, and
the private key enables publishing new (signed) values. In both publish
and resolve, the default name used is the node's own PeerID,
which is the hash of its public key.

You can use the 'dms3 key' commands to list and generate more names and their
respective keys.

Examples:

Publish an <dms3-path> with your default name:

  > dms3 name publish /dms3/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy
  Published to QmbCMUZw6JFeZ7Wp9jkzbye3Fzp2GGcPgC3nmeUjfVF87n: /dms3/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy

Publish an <dms3-path> with another name, added by an 'dms3 key' command:

  > dms3 key gen --type=rsa --size=2048 mykey
  > dms3 name publish --key=mykey /dms3/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy
  Published to QmSrPmbaUKA3ZodhzPWZnpFgcPMFWF4QsxXbkWfEptTBJd: /dms3/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy

Alternatively, publish an <dms3-path> using a valid PeerID (as listed by
'dms3 key list -l'):

 > dms3 name publish --key=QmbCMUZw6JFeZ7Wp9jkzbye3Fzp2GGcPgC3nmeUjfVF87n /dms3/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy
  Published to QmbCMUZw6JFeZ7Wp9jkzbye3Fzp2GGcPgC3nmeUjfVF87n: /dms3/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy

`,
	},

	Arguments: []cmds.Argument{
		cmds.StringArg(dms3PathOptionName, true, false, "dms3 path of the object to be published.").EnableStdin(),
	},
	Options: []cmds.Option{
		cmds.BoolOption(resolveOptionName, "Check if the given path can be resolved before publishing.").WithDefault(true),
		cmds.StringOption(lifeTimeOptionName, "t",
			`Time duration that the record will be valid for. <<default>>
    This accepts durations such as "300s", "1.5h" or "2h45m". Valid time units are
    "ns", "us" (or "µs"), "ms", "s", "m", "h".`).WithDefault("24h"),
		cmds.BoolOption(allowOfflineOptionName, "When offline, save the DMS3NS record to the the local datastore without broadcasting to the network instead of simply failing."),
		cmds.StringOption(ttlOptionName, "Time duration this record should be cached for. Uses the same syntax as the lifetime option. (caution: experimental)"),
		cmds.StringOption(keyOptionName, "k", "Name of the key to be used or a valid PeerID, as listed by 'dms3 key list -l'.").WithDefault("self"),
		cmds.BoolOption(quieterOptionName, "Q", "Write only final hash."),
		ke.OptionDMS3NSBase,
	},
	Run: func(req *cmds.Request, res cmds.ResponseEmitter, env cmds.Environment) error {
		api, err := cmdenv.GetApi(env, req)
		if err != nil {
			return err
		}
		keyEnc, err := ke.KeyEncoderFromString(req.Options[ke.OptionDMS3NSBase.Name()].(string))
		if err != nil {
			return err
		}

		allowOffline, _ := req.Options[allowOfflineOptionName].(bool)
		kname, _ := req.Options[keyOptionName].(string)

		validTimeOpt, _ := req.Options[lifeTimeOptionName].(string)
		validTime, err := time.ParseDuration(validTimeOpt)
		if err != nil {
			return fmt.Errorf("error parsing lifetime option: %s", err)
		}

		opts := []options.NamePublishOption{
			options.Name.AllowOffline(allowOffline),
			options.Name.Key(kname),
			options.Name.ValidTime(validTime),
		}

		if ttl, found := req.Options[ttlOptionName].(string); found {
			d, err := time.ParseDuration(ttl)
			if err != nil {
				return err
			}

			opts = append(opts, options.Name.TTL(d))
		}

		p := path.New(req.Arguments[0])

		if verifyExists, _ := req.Options[resolveOptionName].(bool); verifyExists {
			_, err := api.ResolveNode(req.Context, p)
			if err != nil {
				return err
			}
		}

		out, err := api.Name().Publish(req.Context, p, opts...)
		if err != nil {
			if err == iface.ErrOffline {
				err = errAllowOffline
			}
			return err
		}

		pid, err := peer.Decode(out.Name())
		if err != nil {
			return err
		}

		return cmds.EmitOnce(res, &Dms3NsEntry{
			Name:  keyEnc.FormatID(pid),
			Value: out.Value().String(),
		})
	},
	Encoders: cmds.EncoderMap{
		cmds.Text: cmds.MakeTypedEncoder(func(req *cmds.Request, w io.Writer, ie *Dms3NsEntry) error {
			var err error
			quieter, _ := req.Options[quieterOptionName].(bool)
			if quieter {
				_, err = fmt.Fprintln(w, cmdenv.EscNonPrint(ie.Name))
			} else {
				_, err = fmt.Fprintf(w, "Published to %s: %s\n", cmdenv.EscNonPrint(ie.Name), cmdenv.EscNonPrint(ie.Value))
			}
			return err
		}),
	},
	Type: Dms3NsEntry{},
}