const createError = require('http-errors');
const express = require('express');
const bodyParser = require('body-parser');
const path = require('path');
const cookieParser = require('cookie-parser');
const logger = require('morgan');
const MongoClient = require('mongodb').MongoClient;
const assert = require('assert');
const cookieSession = require('cookie-session');

const apiRouter = require('./app/routes/api');
const authRouter = require('./app/routes/auth');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(bodyParser.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use(cookieSession({
  name: 'session',
  secret: 'flkasjgoeeovneogsfafjasdjfslkjlgjs',
  maxAge: 365 * 24 * 60 * 60 * 1000 // 1 year
}));

app.use('/api', apiRouter);
app.use('/api/auth', authRouter);
app.get('*', (req, res) => {
  res.sendFile(path.join(__dirname + '/client/build/index.html'));
});

// catch 404 and forward to error handler
app.use(function (req, res, next) {
  next(createError(404));
});

// error handler
app.use(function (err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

function main() {
  console.log('startup dgdg');

  const dbUrl = 'mongodb://localhost:27017';
  const dbName = 'dgdg-dev';
  let client = new MongoClient(dbUrl, { useUnifiedTopology: true });
  client.connect(function (err) {
    assert.equal(null, err);
    app.locals.database = client.db(dbName);
  });
};

main();

module.exports = app;