app.js

const express = require('express');
const session = require('express-session');
const multer = require('multer');

const utils = require('./utils');
const geolocation = require('./js5/1/geolocation');
const commands = require('./js5/2/commands');
const memegen = require('./js5/3/memegen');
const assets = require('./js5/4/assets');
const chatroom = require('./js5/5/chatroom');
const auth = require('./js5/6/jwt_auth');
const ocr = require('./js5/7/ocr');
const webcam = require('./js5/8/webcam');
const memechat = require('./js5/9/memechat');

const app = express();
const upload = multer({ dest: 'public/files/' });
const port = process.env.PORT || 8123;

app.use(session({
  secret: 'keyboard cat', resave: false, saveUninitialized: false, cookie: { maxAge: 1000 * 60 * 60, sameSite: true },
})); // cookie
app.use(express.static('public')); // generate static link to files in /public
app.use(express.json({ limit: '10mb' })); // parse json body in the requests
app.use(express.urlencoded({ extended: true }));
utils.createFolder();
utils.cleanFolder();

// 1. IP GEOLOCATION
app.get('/visitors', (req, res) => {
  geolocation.visitorsRoute(req, res);
});

app.get('/api/visitors', (req, res) => {
  geolocation.findAll(req, res);
});

// 2. COMMANDS
app.post('/commands', (req, res) => {
  commands.runCommand(req, res);
});

// 3. Meme Gen
app.get('/memegen/api/:text', (req, res) => {
  memegen.genMeme(req, res);
});

// 4. Asset Creation
app.get('/api/files', (req, res) => {
  assets.findAll(req, res);
});

app.get('/api/files/:filename', (req, res) => {
  assets.findFile(req, res);
});

app.post('/api/files', (req, res) => {
  assets.createFile(req, res);
});
assets.initialize();

// 5. Chatroom using JWT Auth
app.get('/chatroom/:room?', (req, res) => {
  res.sendFile(`${__dirname}/public/js5/5/chatroom.html`);
});

app.use('/chatroom/api/*', (req, res, next) => {
  chatroom.getUserMiddleware(req, res, next);
});

app.get('/chatroom/api/session', (req, res) => {
  chatroom.getSession(req, res);
});

app.get('/chatroom/api/:room/messages', (req, res) => {
  chatroom.getMessages(req, res);
});

app.post('/chatroom/api/:room/messages', (req, res) => {
  chatroom.postMessage(req, res);
});

// 6. Authentication
app.get('/auth', (req, res) => {
  res.sendFile(`${__dirname}/public/js5/6/auth.html`);
});

app.post('/auth/api/users', (req, res) => {
  auth.postUser(req, res);
});

app.post('/auth/api/session', (req, res) => {
  auth.postSession(req, res);
});

app.get('/auth/api/session', (req, res) => {
  auth.getSession(req, res);
});

// 7. Image Text Extraction
app.post('/ocr/files', upload.single('userFile'), (req, res) => {
  ocr.postJob(req, res);
});

app.get('/ocr/job/:jobid', (req, res) => {
  res.sendFile(`${__dirname}/public/js5/7/ocr_job.html`);
});

app.get('/ocr/api/job/:jobid', (req, res) => {
  ocr.getJob(req, res);
});
ocr.deleteOldFiles();

// 8. Selfie Queen
app.post('/webcam/files', (req, res) => {
  webcam.postImage(req, res);
});
webcam.deleteOldFiles();

// 9. MemeChat
app.get('/memechat/', (req, res) => {
  res.sendFile(`${__dirname}/public/js5/9/login.html`);
});

app.get('/memechat/room', (req, res) => {
  res.sendFile(`${__dirname}/public/js5/9/room.html`);
});

app.get('/memechat/api/session', (req, res) => {
  if (!req.session.username) {
    return res.status(403).json({ error: 'Invalid session' });
  }
  return res.sendStatus(200);
});

app.post('/memechat/api/session', (req, res) => {
  if (!req.session.username) {
    req.session.username = req.body.username;
  }
  res.status(201).redirect('/memechat/room');
});

app.get('/memechat/api/room/', (req, res) => {
  memechat.getUsers(req, res);
});

app.post('/memechat/api/files', (req, res) => {
  memechat.postImage(req, res);
});

// Start server
app.listen(port, () => {
  if (!process.env.PORT) {
    console.log(`Server running at http://localhost:${port}`);
  }
});