const createError = require('http-errors');
const express = require('express');
const path = require('path');
const logger = require('morgan');
const cors = require('cors');
const session = require('express-session');
const cookieParser = require('cookie-parser');

const indexRouter = require('./routes/index');
const mongodbConfig = require('./db/mongodb.config');

const app = express();

// 导入env
require("dotenv").config();
const dbAccount = process.env.DB_ACCOUNT;
const dbPassword = process.env.DB_PASSWORD;
const loginSecret = process.env.SESSION_SECRET;
mongodbConfig.connectMongoDB(dbAccount, dbPassword);

app.use(cors());
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(express.static(path.join(__dirname, 'public')));
app.use(cookieParser());
app.use(session({
  name: 'identityKey',
  secret: loginSecret,
  resave: false,
  saveUninitialized: false,
  cookie: {
    secure: false,
    maxAge: 1000 * 60 * 10,
  },
}));

app.use('/', indexRouter);

// 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');
});

module.exports = app;