index.js

// import telegram lib
const Telegraf = require('telegraf').Telegraf
require('dotenv').config()
// Am folosit .env pentru a pastra TOKEN-ul botului in siguranta (commit-uri)
// Instantierea botuluib de Telegram folosind TOKEN-ul (din aplicatie)
const bot = new Telegraf(process.env.BOT_TOKEN) 

// Mesajele de reply (initializare stringuri)
// pentru bot-ul de Telegram

// Mesaj de hello
const welcomeMessage = 'Welcome!🐱🐶 I am an Automatic Feeder Robot. Send me a command so I can feed your pet.'

// Mesaj de help
const helpMessage = 'You can control me by sending these commands:' +
'\n\n' +
'/start - short intro\n' +
'/help - show all the commands available\n' +
'/feed - feed my Kara\n' +
'/credits - and the 1st prize goes to ...\n'

// Mesaj de credits
const creditsMessage = 'UPB-ACS project made by:\n\n' +
'👩‍💻 Ciuciu Anca-Maria\n' +
'🏫 Facultatea de Automatică și Calculatoare\n' 


/* /start command   */
bot.start((ctx) => ctx.reply(welcomeMessage)) 

/* /help command  */
bot.help((ctx) => ctx.reply(helpMessage))

/* /credits command  */
bot.command('credits', ctx => {
    console.log(ctx.from)

    bot.telegram.sendMessage(ctx.chat.id, creditsMessage, {
    })
})

/* /feed command  */
bot.command('feed', ctx => {
    if (GLOBALSOCKET != undefined) {
        sendReply('f');
        ctx.reply("Ok, feeding cat now!");
    }
    else {
        ctx.reply("Bot not connected!");
    }
})


// Run the bot
bot.launch() // start

var net = require('net');

GLOBALSOCKET = undefined

function sendReply(data){
  GLOBALSOCKET.write(data);
}
var isPressed = false;
var server = net.createServer(function(socket) {
  socket.write('Echo server!!!\r\n');
    socket.on('error', function(err) {
        console.log("Error")
        GLOBALSOCKET = undefined
     })
    socket.on('close', function(){
        console.log("Socked closed")
        GLOBALSOCKET = undefined
    })
    socket.on('data', function(data) {
        var isPressed = false;
        for (const item of data) {
            if (item == 120) {
                isPressed = true;
            }
        }
        if (isPressed) {
            bot.telegram.sendMessage(process.env.TELEGRAM_ID, "Kara was fed by herself.")
        }
    });
    GLOBALSOCKET = socket;
});

server.listen(1337, '0.0.0.0');