index.js

const express = require("express");
const app = express();
const port = 8000;

const env = require("./config/environment");
const logger = require("morgan");

//for view-helper
require("./config/view-helper")(app);

const path = require("path");

//importing cookie parser
const cookieParser = require("cookie-parser");

//passport setup
const session = require("express-session");
const passport = require("passport");
const passportLocal = require("./config/passport-local-strategy");

//passport-jwt-setup
const passportJwt = require("./config/passport-jwt-strategy");

//passport google auth
const passportGoogle = require("./config/passport-google-oauth2-strategy");

//for github auth
const passportGithub = require("./config/passport-oauth-github");

//for facebook auth
const passportFacebook = require("./config/passport-oauth-facebook");

//configuring the database
const db = require("./config/mongoose");
const MongoStore = require("connect-mongo")(session);

//importing express-ejs-layout for same layout in each page install express-ejs-layouts for this
const expressLayouts = require("express-ejs-layouts");

//importing sass middleware
const sassMiddleware = require("node-sass-middleware");
const flash = require("connect-flash");
const customMware = require("./config/middleware");

//setting chat engine
const chatServer = require("http").Server(app);
const chatSockets = require("./config/chat_sockets").chatSockets(chatServer);
chatServer.listen(5000);
console.log("chat server is listening on port 5000");

//---------------------------------------------------------------------middleware--------------------------------------------------------------------
//middleware for sass
app.use(
  sassMiddleware({
    src: path.join(__dirname, env.asset_path, "scss"),
    dest: path.join(__dirname, env.asset_path, "css"),
    debug: true,
    outputStyle: "extended",
    prefix: "/css",
  })
);

//middleware for form parser
app.use(express.urlencoded({ extended: false }));

//middleware for cookie parser install cookie-parser for this
app.use(cookieParser());

//importing the assets folder----above than ./routes file
app.use(express.static(env.asset_path));

//importing for profile pic for multer
app.use("/uploads", express.static(__dirname + "/uploads"));
//or
// app.use('/uploads',express.static('./uploads'));
// app.use('/uploads',express.static(path.join(__dirname , '/uploads')));

//morga use for production
app.use(logger(env.morgan.mode, env.morgan.options));

//using expressLayouts
app.use(expressLayouts);

//these are used so that css file links goes into header after page reload
app.set("layout extractStyles", true);
app.set("layout extractScripts", true);

//setup view engine
app.set("view engine", "ejs");
app.set("views", "./views");

//middleware for passport
app.use(
  session({
    name: "codeial",
    //TODO change this in production
    secret: env.session_cookie_key,
    saveUninitialized: false,
    resave: false,
    cookie: {
      maxAge: 100 * 240 * 100,
    },
    store: new MongoStore(
      {
        mongooseConnection: db,
        autoRemove: "disabled",
      },
      function (err) {
        console.log(err || "connect mongo db setup ok");
      }
    ),
  })
);

app.use(passport.initialize());
app.use(passport.session());

//made in config file
app.use(passportLocal.setAuthenticatedUser);

//import flash should be after session
app.use(flash());
app.use(customMware.setFlash);

//use express router-----below assets
app.use("/", require("./routes/index"));

app.listen(port, function (err) {
  if (err) {
    console.log(`error in running server : ${err}`);
  }
  console.log(`server is running on port : ${port}`);
});