const express = require('express');
const bodyParser = require('body-parser');
const low = require('lowdb');
const FileAsync = require('lowdb/adapters/FileAsync');
const app = express(); // app is an instance of express

app.use(bodyParser.urlencoded({ extended: false })) // parse application/x-www-form-urlencoded
app.use(bodyParser.json()) // parse application/json
app.use(express.static(__dirname + '/build')); // serve static build site
app.post('/test',(req,res)=>{
	res.send(req.body);
})

// Create database instance and start server
// const adapter = new FileAsync(__dirname + '/db.json');
low(new FileAsync(__dirname + '/db.json'))
	.then(db => {
		// DATABASE ROUTES 

		// GET /videolog
		app.get('/videolog', (req, res) => {
			const post = db
				.get('videos')
				// .find({ id: req.params.id })
				.value();
			res.send(post);
		});

		// POST /videolog
		app.post('/videolog', (req, res) => {
			db.get('videos')
				.push(req.body)
				.last()
				.update('timesWatched', n => n + 1 )
				.write()
				.then(post => res.send(post)); // non funziona minimamente lol
		});

		// Set db default values
		return db
			.defaults({
				videos: [
					// {
					// 	videoId: '',
					// 	timesWatched: 0,
					// 	prevalentReason: '',
					// 	lastSelected: new Date()
					// }
				]
			})
			.write();
	})
	.then(() => {
		app.listen(8000, () => console.log('listen on 8000')); // bind to port 8000 as required from specs
	});