server.bak

var express = require('express');
const app = express();
const http = require('http').Server(app);
const io = require('socket.io')(http);
const fs = require('fs');
const port = 8080;

var altitude = "nope";
var temperature = "nope";
var pressure = "nope";

app.use(express.static('web'))

const getData = function (type, callback) {
	fs.readFile('data/readable.json', function (err, data) {
		if (err) throw err;
		var parsedData = JSON.parse(data);
		var returnValue;
		for (var i = 0; i < parsedData.length; i++) {
			if (parsedData[i][type]) {
				returnValue = parsedData[i][type];
			}
		}
		callback(null, returnValue);
	});
}


setInterval(function () {
	getData("altitude", function (err, alt) {
		if (err) throw err;
		altitude = alt;
	})
}, 200);

setInterval(function () {
	getData("temperature", function (err, temp) {
		if (err) throw err;
		temperature = temp;
	})
}, 200);

setInterval(function () {
	getData("pressure", function (err, pres) {
		if (err) throw err;
		pressure = pres;
	})
}, 200);

io.on('connection', function (socket) {
	//if (err) throw err;
	console.log("connected")
	setInterval(function () {
		io.emit('temperature', Math.round(temperature));
		io.emit('altitude', Math.round(altitude));
		io.emit('pressure', Math.round(pressure));
	}, 200);

});

//Dit gedeelte moet ALTIJD onderaan staan
http.listen(port, function () {
	console.log("Server running at 0.0.0.0:8080")
});