server.js

const express = require('express');
const bodyParser = require('body-parser');
const robot = require("robotjs");

let app = express();
app.use(bodyParser.urlencoded({extended: false}));
let active = false; //the round (or voting) is open or not
// CONTROLS: To add more controls just change these arrays properly
let counter = [0,0,0,0]  //up down left right  keep track of the respective votes
let counterMap = ['UP','DOWN','LEFT','RIGHT'] //the text message hotword to trigger those actions
let keyPressMap = ['up','down','left','right']  //the value that is passed into the keyboard interfacer library check https://robotjs.io/docs/syntax#keyboard
//END CONTROLSc
let highest = -1 //highest value in counter
let highestIndex = -1 //the index in which (highest) is stored
var timeCount = 5;

var intervalObj = setInterval(() => intervalNode() , 1000);

function intervalNode(params) {
  {
    console.log(timeCount)
    active = true
    timeCount--
    console.log("Count:" + timeCount)
    if (timeCount <= 0)
    {
       active = false
       for (let i = 0; i < counter.length; i++) { //loop to find the most voted (largest int) int array

        const ele = counter[i];
        if(ele > highest){
           highest = ele
           highestIndex = i
        }
        else if(ele == highest){ //handle ties
          if (Math.random() >= 0.5)
              highestIndex = i
        }
      }
      console.log(`Most of y'all chose to move : ${counterMap[highestIndex]}`)
      robot.keyTap(keyPressMap[highestIndex])
      counter = [0,0,0,0]
      active = true
      timeCount = 5
    }
  }
}



app.post("/message", function (req, res) {
  if(active){

  console.log(req.body);
   const msg = req.body.Body.toUpperCase()
   const succMsg = () => { res.send(`<Response><Message>Your Command "${msg}" was successfully interpreted </Message></Response>`)}
  if(counterMap.includes(msg)){
     succMsg()
     let index = counterMap.indexOf(msg)
     counter[index]++
  }else{
    res.send(`<Response><Message>Your Command "${req.body.Body}" is not valid </Message></Response>`)
  }

}else{
  res.send(`<Response><Message>Sorry, the round didn't start yet.</Message></Response>`)
}
});

app.get("/", function (req, res) {
  res.send("Server Working!");
});


let listener = app.listen(56451, function () {
  console.log('Your app is listening on port ' + listener.address().port);
});