"use strict";
//import the express app
const express = require('express');
const bodyParser = require('body-parser');

//create the express application
const app = express();
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended:true}));//localhost:3000/music/?a=1&b=2

const music = [
    {
        id: 1,
        title: 'Maps',
        Writer: 'Adam Levine Ryan Tedder Benjamin Levin Ammar Malik Noel Zancanella',
        Producer: 'Benny Blanco Tedder Zancanella Noah Passovoy',
        Length: '3:10'
    },
    {
        id: 2,
        title: 'Animals',
        Writer: 'Adam Levine Ryan Tedder Benjamin Levin Ammar Malik Noel Zancanella',
        Producer: 'Benny Blanco Tedder Zancanella Noah Passovoy',
        Length: '3:10'
    },
    {
        id: 3,
        title: 'It Was Always You',
        Writer: 'Levine Sam Martin Jason Evigan Marcus Lomax Jordan Johnson Stefan Johnson',
        Producer: 'Evigan The Monsters and Strangerz S. Johnson',
        Length: '4:00'
    }
];


//set the root route
app.get('/', (req, res) => {
    return res.send('Hello World!!');
});

app.get('/random', (req, res) => {
    // Math.random() * (max - min) + min;
    return  res.json(Math.random() * (10 - 0) + 0);
});

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

app.post('/music', (req, res) => {

        //get the parameter from the request body
        let id = req.body.id;
        let title = req.body.title;
        let Writer = req.body.Writer;
        let Producer = req.body.Producer;
        let Length = req.body.Length;

        //create new music  object
        let json_music = {
            id,
            title,
            Writer,
            Producer,
            Length

        };
        //add the job object to music  array
        music.push(json_music);

        //return the music  array to server
        return res.json(music);
    });


//listen the express app to port 3000
app.listen('3000',() => {
    console.log('Application is running on PORT 3000');
});