const token = '816620384:AAG9hiCDppW5chOGnq4nxcdMZwgZr3rxvPQ';
const PROXY_SOCKS5_HOST = '162.243.108.161';
const PROXY_SOCKS5_PORT = '1080';

const TelegramBot = require('node-telegram-bot-api')
const Agent = require('socks5-https-client/lib/Agent')

const bot = new TelegramBot(process.env.token, {
  polling: true,
  request: {
    agentClass: Agent,
    agentOptions: {
      socksHost: process.env.PROXY_SOCKS5_HOST,
      socksPort: parseInt(process.env.PROXY_SOCKS5_PORT),
      // If authorization is needed:
      // socksUsername: process.env.PROXY_SOCKS5_USERNAME,
      // socksPassword: process.env.PROXY_SOCKS5_PASSWORD
    }
  }
})

// Matches "/echo [whatever]"
bot.onText(/\/echo (.+)/, (msg, match) => {
  // 'msg' is the received Message from Telegram
  // 'match' is the result of executing the regexp above on the text content
  // of the message

  const chatId = msg.chat.id;
  const resp = match[1]; // the captured "whatever"

  // send back the matched "whatever" to the chat
  bot.sendMessage(chatId, resp);
});