Init barebones Go Telegram bot with commands folder similar to the JS bot

README.md

@@ -1,3 +1,3 @@
 # nignoggobot
 
-Rewrite of nignogbot in Go
+Rewrite of @nignogbot Telegram bot, but in Go

commands/command.go

@@ -0,0 +1,19 @@
+package commands
+
+import tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
+
+type Command interface {
+	Name() string
+	Help() string
+	Execute(update tgbotapi.Update, bot *tgbotapi.BotAPI)
+}
+
+var commandRegistry = make(map[string]Command)
+
+func Register(cmd Command) {
+	commandRegistry[cmd.Name()] = cmd
+}
+
+func All() map[string]Command {
+	return commandRegistry
+}

commands/help.go

@@ -0,0 +1,29 @@
+package commands
+
+import (
+	"strings"
+	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
+)
+
+type HelpCommand struct{}
+
+func (h HelpCommand) Name() string {
+	return "help"
+}
+
+func (h HelpCommand) Help() string {
+	return "Shows available commands."
+}
+
+func (h HelpCommand) Execute(update tgbotapi.Update, bot *tgbotapi.BotAPI) {
+	var helpText strings.Builder
+	for _, cmd := range All() {
+		helpText.WriteString("/" + cmd.Name() + " - " + cmd.Help() + "\n")
+	}
+	msg := tgbotapi.NewMessage(update.Message.Chat.ID, helpText.String())
+	bot.Send(msg)
+}
+
+func init() {
+	Register(HelpCommand{})
+}

commands/info.go

@@ -0,0 +1,28 @@
+package commands
+
+import (
+	"log"
+	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
+)
+
+type InfoCommand struct{}
+
+func (i InfoCommand) Name() string {
+	return "info"
+}
+
+func (i InfoCommand) Help() string {
+	return "Displays information about the bot."
+}
+
+func (i InfoCommand) Execute(update tgbotapi.Update, bot *tgbotapi.BotAPI) {
+	msg := tgbotapi.NewMessage(update.Message.Chat.ID, "This bot does XYZ.")
+	_, err := bot.Send(msg)
+	if err != nil {
+		log.Println("Failed to send info message:", err)
+	}
+}
+
+func init() {
+	Register(InfoCommand{})
+}

go.mod

@@ -0,0 +1,5 @@
+module nignoggobot
+
+go 1.24.3
+
+require github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1

go.sum

@@ -0,0 +1,2 @@
+github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1 h1:wG8n/XJQ07TmjbITcGiUaOtXxdrINDz1b0J1w0SzqDc=
+github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1/go.mod h1:A2S0CWkNylc2phvKXWBBdD3K0iGnDBGbzRpISP2zBl8=

main.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"log"
+	"os"
+
+	"nignoggobot/commands"
+
+	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
+
+	_ "nignoggobot/commands" // ensure init() is called
+)
+
+func main() {
+	bot, err := tgbotapi.NewBotAPI(os.Getenv("TELEGRAM_TOKEN"))
+	log.Println(os.Getenv("TELEGRAM_TOKEN"))
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	log.Printf("Authorized on account %s", bot.Self.UserName)
+
+	u := tgbotapi.NewUpdate(0)
+	u.Timeout = 60
+	updates := bot.GetUpdatesChan(u)
+
+	for update := range updates {
+		if update.Message == nil || !update.Message.IsCommand() {
+			continue
+		}
+
+		cmdName := update.Message.Command()
+		if cmd, ok := commands.All()[cmdName]; ok {
+			cmd.Execute(update, bot)
+		} else {
+			msg := tgbotapi.NewMessage(update.Message.Chat.ID, "Unknown command.")
+			bot.Send(msg)
+		}
+	}
+}