package main

import (
	"fmt"
	"log"
	"net/http"

	"github.com/joho/godotenv"
	"github.com/namsral/flag"
)

var (
	ChatId   int
	BotToken string
)

func init() {
	err := godotenv.Load()
	if err != nil {
		log.Fatal("error loading .env file")
	}
	flag.IntVar(&ChatId, "TELEGRAM_CHAT_ID", 0, "Chat id of telegram channel")
	flag.StringVar(&BotToken, "TELEGRAM_BOT_TOKEN", "", "Telegram bot token")
	flag.Parse()
	if ChatId == 0 {
		log.Fatal("TELEGRAM_CHAT_ID not set")
	}
	if BotToken == "" {
		log.Fatal("TELEGRAM_BOT_TOKEN not set")
	}
}

func SendTextToTelegram(text string) {
	url := fmt.Sprintf("https://api.telegram.org/bot%s/sendMessage?chat_id=%d&text=%s", BotToken, ChatId, text)
	resp, err := http.Get(url)
	if err != nil {
		err = fmt.Errorf("error during GET %s: %w", url, err)
		log.Println(err)
		return
	}
	defer resp.Body.Close()
	log.Printf("GET %s: %d\n", url, resp.StatusCode)
}