fix: now command description and name cannot be empty making the program

panicing before the bot starts.

cmd/test/main.go

@@ -271,51 +271,45 @@ WithUsage(tg.Func(func(c *tg.Context){
 })).WithPreStart(tg.Func(func(c *tg.Context){
 	c.Sendf("Please, use /start ")
 })).WithCommands(
-	tg.NewCommand("info").
+	tg.NewCommand("info", "info desc").
 		ActionFunc(func(c *tg.Context){
 			c.SendfHTML(`<a href="https://res.cloudinary.com/demo/image/upload/v1312461204/sample.jpg">cock</a><strong>cock</strong> die`)
 		}),
-	tg.NewCommand("start").
+	tg.NewCommand(
-		Desc(
+		"start",
-			"start or restart the bot or move to the start screen",
+		"start or restart the bot or move to the start screen",
-		).Go("/"),
+	).Go("/"),
-	tg.NewCommand("hello").
+	tg.NewCommand("hello", "sends the 'Hello, World!' message back").
-		Desc("sends the 'Hello, World!' message back").
 		ActionFunc(func(c *tg.Context) {
 			c.Sendf("Hello, World!")
 		}),
-	tg.NewCommand("read").
+	tg.NewCommand("read", "reads a string and sends it back").
-		Desc("reads a string and sends it back").
 		WithWidget(
 			tg.Func(func(c *tg.Context){
 				str := c.ReadString("Type a string and I will send it back")
 				c.Sendf2("You typed `%s`", str)
 			}),
 		),
-	tg.NewCommand("image").
+	tg.NewCommand("image", "sends a sample image").
-		Desc("sends a sample image").
 		ActionFunc(func(c *tg.Context) {
 			img := tg.NewFile("media/cat.jpg").Image().Caption("A cat!")
 			c.Send(img)
 		}),
-	tg.NewCommand("botname").
+	tg.NewCommand("botname", "get the bot name").
-		Desc("get the bot name").
 		WithAction(tg.Func(func(c *tg.Context) {
 			bd := c.Bot.Data.(*BotData)
 			c.Sendf("My name is %q", bd.Name)
 		})),
-	tg.NewCommand("dynamic").
+	tg.NewCommand("dynamic", "check of the dynamic work").
-		Desc("check of the dynamic work").
 		WithWidget(tg.Func(func(c *tg.Context){
 		})),
-	tg.NewCommand("history").
+	tg.NewCommand("history", "print go history").
-		Desc("print go history").
 		WithAction(tg.Func(func(c *tg.Context){
 			c.Sendf("%q", c.History())
 		})),
-	tg.NewCommand("washington").
+	tg.NewCommand("washington", "send location of the Washington").
-		Desc("Send location of the Washington").
 		WithAction(tg.Func(func(c *tg.Context){
+			c.Sendf("Washington location")
 			c.Send(
 				tg.NewMessage("").Location(
 					47.751076, -120.740135,

tg/bot.go

@@ -117,13 +117,13 @@ func (bot *Bot) DeleteCommands() {
 func (bot *Bot) SetCommands(
 	scope tgbotapi.BotCommandScope,
 	cmdMap CommandMap,
-) {
+) error {
 	// First the private commands.
 	names := []string{}
 	for name := range cmdMap {
 		names = append(names, string(name))
 	}
-	sort.Strings([]string(names))
+	sort.Strings(names)
 
 	cmds := []*Command{}
 	for _, name := range names {
@@ -144,7 +144,11 @@ func (bot *Bot) SetCommands(
 		botCmds...,
 	)
 
-	bot.Api.Request(cfg)
+	_, err := bot.Api.Request(cfg)
+	if err != nil {
+		return err
+	}
+	return nil
 }
 
 // Run the bot with the Behaviour.

tg/command.go

@@ -24,9 +24,13 @@ type Command struct {
 }
 type CommandMap map[CommandName]*Command
 
-func NewCommand(name CommandName) *Command {
+func NewCommand(name CommandName, desc string) *Command {
+	if name == "" || desc == "" {
+		panic("name and description cannot be an empty string")
+	}
 	return &Command{
 		Name: name,
+		Description: desc,
 	}
 }
 
@@ -55,11 +59,6 @@ func (c *Command) ToApi() tgbotapi.BotCommand {
 	return ret
 }
 
-func (c *Command) Desc(desc string) *Command {
-	c.Description = desc
-	return c
-}
-
 func (c *Command) Go(pth Path, args ...any) *Command {
 	return c.WithAction(ScreenGo{
 		Path: pth,
@@ -139,10 +138,13 @@ func (compo *CommandCompo) Serve(c *Context) {
 		commanders[k] = v
 	}*/
 	c.Bot.DeleteCommands()
-	c.Bot.SetCommands(
+	err := c.Bot.SetCommands(
-		tgbotapi.NewBotCommandScopeAllPrivateChats(),
+		tgbotapi.NewBotCommandScopeChat(c.Session.Id.ToApi()),
 		compo.Commands,
 	)
+	if err != nil {
+		c.Sendf("error: %q", err)
+	}
 
 	var cmdUpdates *UpdateChan
 	for u := range c.Input() {