var createError = require('http-errors');
var express = require('express');

var exphbs  = require('express-handlebars');
var helpers = require('./helper.js');

var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var session = require('express-session');
var MemoryStore = require('memorystore')(session);




var indexRouter = require('../routes/index');

var app = express();

var hbs = exphbs.create({
    defaultLayout: 'main',
    helpers      : helpers,

    // Uses multiple partials dirs, templates in "shared/templates/" are shared
    // with the client-side of the app (see below).
    partialsDir: [        
        'views/partials/'
    ]
});

// view engine setup
app.engine('handlebars', hbs.engine);
app.set('view engine', 'handlebars');





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')));

app.use(session({
    key: 'user_sid',
    secret: 'secret',
    resave: false,
    store: new MemoryStore({
      checkPeriod: 86400000 // prune expired entries every 24h
    }),
    saveUninitialized: false,
    cookie: {
        expires: 300000
    }
}));

app.use((req, res, next) => {
    if (req.cookies.user_sid && !req.session.user) {
        res.clearCookie('user_sid');        
    }
    next();
});

app.use(function(req, res, next) {
  res.set('Cache-Control', 'no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0');
  next();
});


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',{errorMessage : err});
});



module.exports = app;