package telegram

import (
	"bufio"
	"fmt"
	"io"
	"log"
	"os"
	"time"

	tg "github.com/go-telegram-bot-api/telegram-bot-api/v5"
)

const (
	modsecLogFile  = "/tmp/host-fs-auditlog.log"
	telegramToken  = "7215466800:AAGwjZnXEfbbjQiA0y7qtSzbSZNUWQJnyjo"
	telegramChatID = 622943829
)

func TelegramBotInit() {
	bot, err := tg.NewBotAPI(telegramToken)
	if err != nil {
		log.Fatal("Failed to create Telegram bot:", err)
	}

	log.Println("Telegram bot connected")

	// send init message on startup
	testMsg := tg.NewMessage(telegramChatID, "I'm in")
	_, err = bot.Send(testMsg)
	if err != nil {
		log.Fatal("Failed to send test message:", err)
	}

	// open the log file
	logFile, err := os.Open(modsecLogFile)
	if err != nil {
		log.Fatal("Failed to open log file:", err)
	}
	defer logFile.Close()

	// seek to the end of the file to read only new entries
	logFile.Seek(0, io.SeekEnd)

	reader := bufio.NewReader(logFile)
	for {
		line, err := reader.ReadString('\n')
		if err == nil {
			sendTelegramAlert(bot, line)
		}
		// maybe change this logic? interrupt vs polling??????
		time.Sleep(1 * time.Second)
	}
}

func sendTelegramAlert(bot *tg.BotAPI, message string) {
	msg := tg.NewMessage(telegramChatID, fmt.Sprintf("*WEEWOO ALERT*\n%s", message))
	bot.Send(msg)
}