text: var createError = require('http-errors');
  var express = require('express');
  var path = require('path');
  var cookieParser = require('cookie-parser');
  var logger = require('morgan');
  
  //routes
  var usersRouter = require('./routes/users');
  var adminRouter = require('./routes/admin');
  var staffRouter = require('./routes/staff');
  
  //npm install express-handlebars
  var hbs=require('express-handlebars')
  
  //fileUpload
  var fileUpload=require('express-fileupload')
  var app = express()
  
  //connection
  var db=require('./config/connection')
  
  //npm i express-session
  var session=require('express-session')
  
  
  // view engine setup
  app.set('views', path.join(__dirname, 'views'));
  app.set('view engine', 'hbs');
  app.engine('hbs',hbs({extname:'hbs',defaultLayout:'layout',layoutsDir:__dirname+'/views/layout/',partialsDir:__dirname+'/views/partials/'}))
  
  
  app.use(logger('dev'));
  app.use(express.json());
  app.use(express.urlencoded({ extended: false }));
  app.use(cookieParser());
  app.use(express.static(path.join(__dirname, 'public')));
  
  //fileupload
  app.use(fileUpload())
  
  
  //npm i express-session
  app.use(session({secret:"Key", cookie:{maxAge:600000}}))
  
  
  //connection
  db.connect((err)=>{
    if(err) console.log("Database error"+err);
    else console.log("Database conncetd")
  })
  
  //routes
  
  
  
  app.use('/', usersRouter);
  
  app.use('/admin', adminRouter );
  app.use('/staff', staffRouter );
  
  
  // 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');
  });
  
  app.use(8000, (req,res) => {
    console.log("Server is running on local port 80")
  })
  
  module.exports = app;
   