const express = require('express');
const app = express();
const cors = require('cors');
const fs = require('fs');

const expressPort = 3000;

app.use(express.json({ limit: '2mb' }));
app.use(express.urlencoded({ extended: true }));
app.use(express.static('public'));
app.use(cors());

let temperature = '';
let departures = [];

app.post('/settemperature', (req, res) => {
	//console.log('setTemperature: ', req.body);
	temperature = req.body.temperature;
    res.status(200).send(req.body);
})

app.get('/gettemperature', (req,res) => {
	res.status(200).send(temperature);
})

app.post('/setdepartures', (req, res) => {
	//console.log('depparturess: ',req.body, typeof req.body, Array.isArray(req.body));
	departures = req.body;
  res.status(200).send('ok');
})

app.get('/getdepartures', (req,res) => {
	//console.log('dep ----- ',departures)
	res.status(200).send(departures);
})

app.get('/get_rssfeed_data', (req,res) => {
	let rssData = fs.readFileSync('rss_feed_data');
	try {
		rssData = JSON.parse(rssData);
		res.status(200).send(rssData);
	} catch(e){
		res.send('error parsing rssfeeddata');
	}
})

app.post('/set_RssFeed_Data', (req,res) => {
	//console.log(req.body);
	try {
		fs.writeFileSync('rss_feed_data', JSON.stringify(req.body));
		res.status(200).send('rssfeed data saved to file');
	} catch(e) { 
		res.send('rssfeed data not saved!');
	}
})

app.listen(expressPort, () => {
    console.log(`Express web server listening on port ${expressPort}`);
})