const express = require('express')
const mysql = require('mysql-await');
const app = express()
const cors = require('cors');

app.use(cors());
app.use(express.json());

const mysqlConnection = mysql.createConnection({
	host: process.env.DB_HOST,
	user: process.env.DB_USER,
	password: process.env.DB_PWD,
	database: process.env.DB_NAME
});
mysqlConnection.connect()

app.get('/songs', async (req, res)=>{
	const results = await mysqlConnection.awaitQuery("SELECT * FROM songs WHERE learned=True ORDER BY title ASC");
	res.json(results)
})

app.get('/instruments', async (req, res)=>{
	const results = await mysqlConnection.awaitQuery("SELECT * FROM instruments");
	res.json(results)
})

app.get('/categories', async (req, res)=>{
	const results = await mysqlConnection.awaitQuery("SELECT practice_categories.id, practice_categories.name AS category, instruments.name AS instrument FROM practice_categories JOIN instruments ON practice_categories.instrument_id = instruments.id ORDER BY practice_categories.id ASC");
	res.json(results)
})

app.get('/summary', async (req, res)=>{
	const results = await mysqlConnection.awaitQuery("SELECT * FROM summary ORDER BY chunks_practiced ASC");
	res.json(results)
})


app.listen(18080)