feat(server): register command menu on startup

cmd/server/command_menu.go

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"github.com/go-telegram/bot"
+	"github.com/go-telegram/bot/models"
+
+	"github.com/tiennm99/miti99bot/internal/modules"
+)
+
+const commandMenuTimeout = 8 * time.Second
+
+// botCommandMenu builds the Telegram command menu from the loaded public
+// commands. It intentionally follows registry module order so MODULES controls
+// both enabled commands and their menu grouping.
+func botCommandMenu(reg *modules.Registry) []models.BotCommand {
+	if reg == nil {
+		return nil
+	}
+	var out []models.BotCommand
+	for _, mod := range reg.Modules {
+		for _, cmd := range mod.Commands {
+			if cmd.Visibility != modules.VisibilityPublic {
+				continue
+			}
+			out = append(out, models.BotCommand{
+				Command:     cmd.Name,
+				Description: cmd.Description,
+			})
+		}
+	}
+	return out
+}
+
+// registerCommandMenu publishes the menu to Telegram. It is best-effort at
+// startup: callers should log failures and keep the bot running.
+func registerCommandMenu(ctx context.Context, b *bot.Bot, reg *modules.Registry) (int, error) {
+	cmds := botCommandMenu(reg)
+	menuCtx, cancel := context.WithTimeout(ctx, commandMenuTimeout)
+	defer cancel()
+
+	ok, err := b.SetMyCommands(menuCtx, &bot.SetMyCommandsParams{Commands: cmds})
+	if err != nil {
+		return len(cmds), err
+	}
+	if !ok {
+		return len(cmds), errors.New("telegram setMyCommands returned false")
+	}
+	return len(cmds), nil
+}

cmd/server/command_menu_test.go

@@ -0,0 +1,81 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"testing"
+
+	"github.com/go-telegram/bot/models"
+
+	"github.com/tiennm99/miti99bot/internal/modules"
+	"github.com/tiennm99/miti99bot/internal/testutil"
+)
+
+func TestBotCommandMenu_UsesLoadedPublicCommandsInModuleOrder(t *testing.T) {
+	reg := &modules.Registry{
+		Modules: []modules.Module{
+			{
+				Name: "beta",
+				Commands: []modules.Command{
+					{Name: "beta_public", Description: "Beta public", Visibility: modules.VisibilityPublic},
+					{Name: "beta_private", Description: "Beta private", Visibility: modules.VisibilityPrivate},
+				},
+			},
+			{
+				Name: "alpha",
+				Commands: []modules.Command{
+					{Name: "alpha_public", Description: "Alpha public", Visibility: modules.VisibilityPublic},
+					{Name: "alpha_protected", Description: "Alpha protected", Visibility: modules.VisibilityProtected},
+				},
+			},
+		},
+	}
+
+	got := botCommandMenu(reg)
+	want := []models.BotCommand{
+		{Command: "beta_public", Description: "Beta public"},
+		{Command: "alpha_public", Description: "Alpha public"},
+	}
+	if len(got) != len(want) {
+		t.Fatalf("commands = %v, want %v", got, want)
+	}
+	for i := range want {
+		if got[i] != want[i] {
+			t.Fatalf("commands[%d] = %+v, want %+v", i, got[i], want[i])
+		}
+	}
+}
+
+func TestRegisterCommandMenu_CallsTelegramSetMyCommands(t *testing.T) {
+	reg := &modules.Registry{
+		Modules: []modules.Module{{
+			Name: "demo",
+			Commands: []modules.Command{{
+				Name:        "demo",
+				Description: "Demo command",
+				Visibility:  modules.VisibilityPublic,
+			}},
+		}},
+	}
+	rb := testutil.NewRecordingBot(t)
+
+	n, err := registerCommandMenu(context.Background(), rb.Bot, reg)
+	if err != nil {
+		t.Fatalf("registerCommandMenu: %v", err)
+	}
+	if n != 1 {
+		t.Fatalf("registered count = %d, want 1", n)
+	}
+
+	call := rb.LastSent()
+	if call.Method != "setMyCommands" {
+		t.Fatalf("method = %q, want setMyCommands", call.Method)
+	}
+	var cmds []models.BotCommand
+	if err := json.Unmarshal([]byte(call.Form["commands"]), &cmds); err != nil {
+		t.Fatalf("decode commands form field: %v; raw=%q", err, call.Form["commands"])
+	}
+	if len(cmds) != 1 || cmds[0].Command != "demo" || cmds[0].Description != "Demo command" {
+		t.Fatalf("commands payload = %+v, want demo command", cmds)
+	}
+}

cmd/server/main.go

@@ -135,6 +135,11 @@ func main() {
 		"modules", len(reg.Modules),
 		"commands", len(reg.AllCommands),
 		"crons", len(reg.Crons()))
+	if n, err := registerCommandMenu(rootCtx, b, reg); err != nil {
+		log.Warn("telegram command menu registration failed", "commands", n, "err", err)
+	} else {
+		log.Info("telegram command menu registered", "commands", n)
+	}
 
 	// In-process cron scheduler runs unconditionally so the long-lived container
 	// fires module crons (e.g. the lolschedule daily push) on their Schedule.