all-tg-bot/main.go

package main

import (
	"errors"
	"git.user-penguin.space/vladimir/all_tg_bot/commands"
	tgbot "github.com/go-telegram-bot-api/telegram-bot-api"
	"github.com/umputun/go-flags"
	"log"
	"os"
	"strings"
)

const (
	tag      = "@all"
	allUsers = "@vo13crabs @disconecto @v9gel @KeyM_v2 @k_ukolov @iamembarrassed @freel_Fedorov_Kirill @butinmv"
)

type Opts struct {
	Token string `short:"t" long:"token" description:"Telegram api token"`
	Name  string `short:"n" long:"name" description:"Telegram bot name" default:"@butler_tg_bot"`
}

var opts Opts

func main() {
	run()
}

func run() {
	p := flags.NewParser(&opts, flags.PrintErrors|flags.PassDoubleDash|flags.HelpFlag)
	p.SubcommandsOptional = true
	if _, err := p.Parse(); err != nil {
		if err.(*flags.Error).Type != flags.ErrHelp {
			log.Println(errors.New("[ERROR] cli error: " + err.Error()))
		}
		os.Exit(2)
	}

	bot, err := tgbot.NewBotAPI(opts.Token)
	if err != nil {
		panic(err)
	}

	u := tgbot.NewUpdate(0)
	u.Timeout = 60

	updates, err := bot.GetUpdatesChan(u)
	if err != nil {
		panic(err)
	}

	for update := range updates {

		if update.Message == nil {
			continue
		}

		text := update.Message.Text
		chatID := update.Message.Chat.ID

		if strings.Contains(strings.ToLower(text), tag) {
			_, _ = bot.Send(tgbot.NewMessage(chatID, allUsers))
		}

		command := commands.Command(strings.Replace(text, opts.Name, "", 1))
		switch command {
		case commands.Start:
			_, _ = bot.Send(tgbot.NewMessage(chatID, "Здравствуйте, я ваш дворецкий."))
		case commands.Ping:
			_, _ = bot.Send(tgbot.NewMessage(chatID, "pong"))
		}
	}
}