app.js

const path = require('path');
const express = require('express');
const morgan = require('morgan');
const rateLimit = require('express-rate-limit');
const helmet = require('helmet');
//const mongoSanitize = require('express-mongo-sanitize');
const xss = require('xss-clean');
const hpp = require('hpp');
const session = require('express-session');
const cookieParser = require('cookie-parser');
const bodyParser = require('body-parser');
const compression = require('compression');

const cors = require('cors');
const AppError = require('./utils/appError');
const globalErrorHandler = require('./controllers/errorController');
const tourRouter = require('./routes/tourRoutes');
const userRouter = require('./routes/userRoutes');
const reviewRouter = require('./routes/reviewRoutes');
const viewRouter = require('./routes/viewRoutes');
const bookingRouter = require('./routes/bookingRoutes');
const bookingController = require('./controllers/bookingController');

const app = express();

app.enable('trust proxy');

app.use(
  cors({
    origin: '*',
    method: ['GET', 'POST'],
    credentials: true,
  })
);

app.options('*', cors());

app.set('view engine', 'pug');
app.set('views', path.join(__dirname, 'views'));

// 1) GLOBAL MIDDLEWARE
// Serving static files
app.use(express.static(path.join(__dirname, 'public')));

// Set security HTTP headers
app.use(helmet());

// Development logging0
if (process.env.NODE_ENV === 'development') {
  //console.log(process.env.NODE_ENV)
  app.use(morgan('dev'));
}

// Limit request from same API
const limiter = rateLimit({
  max: 100,
  windowMs: 60 * 60 * 1000,
  message: 'Too many request from this IP, please try again in an hour!',
});
app.use('/api', limiter);

app.post(
  '/webhook-checkout',
  bodyParser.raw({ type: 'application/json' }),
  bookingController.webhookCheckout
);

// app.post(
//   '/webhook-checkout',
//   express.raw({ type: 'application/json' }),
//   bookingController.webhookCheckout
// );

// Body parer, reading data from body info req.body
app.use(express.json({ limit: '10kb' }));
app.use(express.urlencoded({ extended: true, limit: '10kb' }));
app.use(cookieParser());

const sessionConfig = {
  secret: process.env.JWT_SECRET,
  name: 'natours',
  saveUninitialized: false,
  resave: false,
  cookie: {
    sameSite: 'none',
    secure: true,
  },
};

if (process.env.NODE_ENV === 'production') {
  app.set('trust proxy', 1);
  sessionConfig.cookie.secure = true;
}

app.use(session(sessionConfig));

// Data sanitization against NoSQL query injection
//app.use(mongoSanitize());

// Data sanitization against XSS
app.use(
  xss({
    whitelist: [
      'duration',
      'ratingsAverage',
      'ratingsQuantity',
      'maxGroupSize',
      'difficulty',
      'price',
    ],
  })
);

app.use(compression());

// Prevent paramter pollution
app.use(hpp());

// Test middleware
app.use((req, res, next) => {
  req.requestTime = new Date().toISOString();
  //console.log(req.headers);
  //console.log(req.cookies);
  next();
});

// 3) ROUTES

app.use('/', viewRouter);
app.use('/api/v1/tours', tourRouter);
app.use('/api/v1/users', userRouter);
app.use('/api/v1/reviews', reviewRouter);
app.use('/api/v1/bookings', bookingRouter);

app.all('*', (req, res, next) => {
  next(new AppError(`Can't find ${req.originalUrl} on this server!`, 404));
  // res.status(404).json({
  //   status: 'fail',
  //   message: `Can't find ${req.originalUrl} on this server!`,
  // });
  // next();
  // const err = new Error(`Can't find ${req.originalUrl} on this server!`);
  // err.status = 'fail';
  // err.statusCode = 404;
  // next(err);
});

app.use(globalErrorHandler);

// 4) SERVER
module.exports = app;

// app.get('/api/v1/tours', getAllTours);
// app.get('/api/v1/tours/:id', getTour);
// app.get('/api/v1/tours', createTour);
// app.patch('/api/v1/tours/:id', updateTour)
// app.delete('/api/v1/tours/:id', deleteTour)