layout: add commands section

layout/example.yml

@@ -3,6 +3,10 @@ settings:
   parse_mode: html
   long_poller: {}
 
+commands:
+  /start: Start the bot
+  /help: How to use the bot
+
 config:
   str: string
   num: 123

layout/layout.go

@@ -21,10 +21,11 @@ type (
 		ctxs  map[tele.Context]string
 		funcs template.FuncMap
 
-		buttons map[string]Button
-		markups map[string]Markup
-		results map[string]Result
-		locales map[string]*template.Template
+		commands map[string]string
+		buttons  map[string]Button
+		markups  map[string]Markup
+		results  map[string]Result
+		locales  map[string]*template.Template
 
 		*Config
 	}
@@ -156,6 +157,18 @@ func (lt *Layout) SetLocale(c tele.Context, locale string) {
 	lt.mu.Unlock()
 }
 
+// Commands returns a list of telebot commands, which can be
+// used in b.SetCommands later.
+func (lt *Layout) Commands() (cmds []tele.Command) {
+	for k, v := range lt.commands {
+		cmds = append(cmds, tele.Command{
+			Text:        k,
+			Description: v,
+		})
+	}
+	return
+}
+
 // Text returns a text, which locale is dependent on the context.
 // The given optional argument will be passed to the template engine.
 //

layout/layout_test.go

@@ -22,6 +22,14 @@ func TestLayout(t *testing.T) {
 	assert.Equal(t, "html", pref.ParseMode)
 	assert.Equal(t, &tele.LongPoller{}, pref.Poller)
 
+	assert.Equal(t, []tele.Command{{
+		Text:        "/start",
+		Description: "Start the bot",
+	}, {
+		Text:        "/help",
+		Description: "How to use the bot",
+	}}, lt.Commands())
+
 	assert.Equal(t, "string", lt.String("str"))
 	assert.Equal(t, 123, lt.Int("num"))
 	assert.Equal(t, int64(123), lt.Int64("num"))

layout/parser.go

@@ -29,6 +29,7 @@ func (lt *Layout) UnmarshalYAML(data []byte) error {
 	var aux struct {
 		Settings *Settings
 		Config   map[string]interface{}
+		Commands map[string]string
 		Buttons  yaml.MapSlice
 		Markups  yaml.MapSlice
 		Results  yaml.MapSlice
@@ -38,9 +39,8 @@ func (lt *Layout) UnmarshalYAML(data []byte) error {
 		return err
 	}
 
-	lt.Config = &Config{
-		v: aux.Config,
-	}
+	lt.Config = &Config{v: aux.Config}
+	lt.commands = aux.Commands
 
 	if pref := aux.Settings; pref != nil {
 		lt.pref = &tele.Settings{