server.js

const path = require("path");
const routes = require("./routes");
const express = require("express");
const session = require("express-session");
const exphbs = require("express-handlebars");
const helpers = require("./utils/helpers");

// server | runs the server & listens through the port
const app = express();
const PORT = process.env.PORT || 3001;

// orm | connects to & auto stores sessions in db
const sequelize = require("./config/connection");
const SequelizeStore = require("connect-session-sequelize")(session.Store);

// session | property information
const sess = {
  secret: "the secret",
  cookie: {},
  resave: false,
  saveUninitialized: true,
  store: new SequelizeStore({ db: sequelize }),
};

// middle ware | expression session
app.use(session(sess));

// server uses the handlebars template engine with custom formatting helpers
const hbs = exphbs.create({ helpers });

// configures view | `.handlebars` file extension
app.engine("handlebars", hbs.engine);
app.set("view engine", "handlebars");

// middleware | express | faciliates front & backend data communication; setting the public folder contents to static allows views to load frontend javascript & css.
app.use(express.json());
app.use(express.urlencoded({ extended: true }));
app.use(express.static(path.join(__dirname, "public")));

// turn on routes
app.use(routes);

// turn on database and server connection
// - force: true | DROP DATABASE IF EXISTS;
sequelize.sync({ force: false }).then(() => {
  app.listen(PORT, () => console.log(`Now listening http://localhost:${PORT}`));
});