app.ts

import Express, { Request, Response } from 'express';
import MongoStore from 'connect-mongo';
import session from 'express-session';
import bodyParser from 'body-parser';
import mongoose from 'mongoose';
import path from 'path';
import dotenv from 'dotenv';
import multer from 'multer';

import passwordResetRoute from './routes/auth/password-reset';
import attendanceTokenRoute from './routes/attendance/attendanceToken';
import submitAttendanceRoute from './routes/attendance/submitAttendance';
import attendanceRoute from './routes/attendance/attendance';
import registerRoute from './routes/auth/register';
import loginRoute from './routes/auth/login';
import homeRoute from './routes/secure/home';

import authenticateSession from './middleware/authenticateSession';

declare module 'express-session' {
  interface Session {
    tentativeClient: object | string;
    client: object | null;
  }
}

const app = Express();

dotenv.config({ path: path.join(__dirname, './env', '.env') });

const clientP = mongoose
  .connect(process.env.MONGODB_URI!, {
    useNewUrlParser: true,
    useUnifiedTopology: true,
    useFindAndModify: false,
  })
  .then((m) => m.connection.getClient());

const fileStorage = multer.diskStorage({
  destination: (_req: Request, _file: File, cb: Function): void =>
    cb(null, 'images'),
  filename: (_req: Request, file: File, cb: Function): void =>
    cb(null, new Date().toISOString() + '-' + file.originalname),
});

const fileFilter = (_req: Request, file: File, cb: Function): void => {
  if (
    file.mimetype === 'image/png' ||
    file.mimetype === 'image/jpg' ||
    file.mimetype === 'image/jpeg'
  ) {
    cb(null, true);
  } else {
    cb(null, false);
  }
};

app.set('view engine', 'ejs');
app.set('views', 'views');
app.use(Express.static(path.join(__dirname, './public')));
app.use(
  multer({ storage: fileStorage, fileFilter: fileFilter }).single('image')
);
app.use(bodyParser.urlencoded({ extended: false }));
app.use(
  session({
    secret: process.env.CLIENT_SECRET!,
    resave: false,
    saveUninitialized: false,
    store: MongoStore.create({
      clientPromise: clientP,
      stringify: false,
      autoRemove: 'interval',
      autoRemoveInterval: 1,
      ttl: 1 * 24 * 60 * 60,
    }),
  })
);

app.get('/', (_req: Request, res: Response): void => {
  res.redirect('/register');
});

app.use('/password-reset', passwordResetRoute);
app.use('/register', registerRoute);
app.use('/login', loginRoute);
app.use('/submit-attendance', submitAttendanceRoute);
app.use('/attendance-token', attendanceTokenRoute);
app.use('/attendance', attendanceRoute);

app.use('/', authenticateSession);

app.use('/home', homeRoute);

export default app;