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

app.use(express.json());

const measurements = [];

const sensors = [
	{
		id: 'htu21d-01',
		model: 'HTU21D',
		quantities: ['temperature', 'humidity']
	},
	{
		id: 'htu21d-02',
		model: 'HTU21D',
		quantities: ['temperature', 'humidity']
	}
];

app.get('/', (req, res) => {
	res.send('<h1> TEST </h1>');
});

//Status//
app.get('/api/status', (req, res) => {
	res.json({ status: 'online', application: 'sensor-api' });
});

app.get('/api/info', (req, res) => {
	res.json({ author: 'Leonard', version: 'v0.0' });
});

//SENSORS//
app.get('/api/sensors', (req, res) => {
	res.json(sensors);
});

app.get('/api/sensors/:id', (req, res) => {
	const sensor = sensors.find(
		(item) => item.id === req.params.id
	);

	// if sensor not found
	if (!sensor) {
		return res.status(404).json({
			error: 'sensor not found',
		});
	}
	res.json(sensor);
});

app.post('/api/measurements', (req, res) => {
	//require json
	//receive measurements
	const measurement = req.body;
	//verify type
	// Content-type application/json
	
	//validate submitted fields
	

	//store in memory
	measurements.push(measurement);

	//show in terminal
	console.log('Received:', measurement);

	//confirm status and storing
	res.status(201).json(measurement);
});

app.get('/api/measurements', (req, res) => {
	res.json(measurements);
});

app.listen(3030, () => { 
	console.log('Listen on port 3030');
});