const express = require('express');

const bodyParser = require('body-parser');

const FileApi = require('./api/FileApi');

const RunnerManager = require('./compiler/RunnerManager');

const PORT = process.env.PORT || 8080;

const app = express();

// Here we are configuring express to use body-parser as middle-ware.

app.use(bodyParser.urlencoded({ extended: false }));

app.use(bodyParser.json());

// serve static files

app.use(express.static('dist'));

// Add headers

app.use((req, res, next) => {

// Website you wish to allow to connect

res.setHeader('Access-Control-Allow-Origin', '*');

// Request methods you wish to allow

res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');

// Request headers you wish to allow

res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,content-type');

// Set to true if you need the website to include cookies in the requests sent

// to the API (e.g. in case you use sessions)

res.setHeader('Access-Control-Allow-Credentials', true);

// Pass to next layer of middleware

next();

});

// test to make sure everything is working (accessed at GET http://localhost:8080/api)

app.get('/api', (req, res) => {

res.json({ message: 'Hello! welcome to our api!' });

});

app.get('/api/file/:lang', (req, res) => {

const language = req.params.lang;

console.log(language);

FileApi.getFile(language, (content) => {

const file = {

lang: language,

code: content,

};

res.send(JSON.stringify(file));

});

});

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

const file = req.body;

console.log(`file.lang: ${file.lang}`, `file.code:${file.code}`);

RunnerManager.run(file.lang, file.code, res);

});

app.listen(PORT, () => console.log(`Listening on port ${PORT}!`));