app.js

//Packages
const express = require("express"),
	  app = express(),
	  bodyParser = require("body-parser"),
	  mongoose = require("mongoose"),
	  methodOverride = require("method-override"),
	  flash = require("connect-flash"),
	  moment = require("moment"),
	  session = require("express-session"),
	  passport = require("passport"),
	  LocalStrategy = require("passport-local"),
	  passportLocalMongoose = require("passport-local-mongoose");

//Models
const Piece = require("./models/piece"),
	  Comment = require("./models/comment"),
	  User = require("./models/user"),
	  Notification = require("./models/notification");	

//Routes
const piecesRoutes = require("./routes/pieces"),
	  commentRoutes = require("./routes/comments"),
	  userRoutes = require("./routes/users"),
	  notificationRoutes = require("./routes/notifications"),
	  indexRoutes = require("./routes/index"),
	  seedDB = require("./seeds");

//App Config
require("dotenv").config();
mongoose.connect(process.env.DatabaseUrl || "mongodb://localhost/literary", {useNewUrlParser: true, useUnifiedTopology: true});
mongoose.set("useFindAndModify", false);
app.set("view engine", "ejs");
app.use(express.static(__dirname + "/public"));
app.use(bodyParser.urlencoded({extended: true}));
app.use(methodOverride("_method"));
app.use(flash());
app.locals.moment = moment;

//Authentication Config
app.use(session({
	secret: "Leveling Skill",
	resave: false,
	saveUninitialized: true
}));
app.use(passport.initialize());
app.use(passport.session());
passport.use(new LocalStrategy(User.authenticate()));
passport.serializeUser(User.serializeUser());
passport.deserializeUser(User.deserializeUser());
app.use(async (req, res, next) => {
	res.locals.error = req.flash("error");
	res.locals.success = req.flash("success");
	res.locals.currentUser = req.user;
	if(req.user) {
		let foundUser = await User.findById(req.user._id).populate("notifications", null, {isRead: false}).exec();
		res.locals.notifications = foundUser.notifications.reverse();
	};
	next();
})

//Routes
app.use("/pieces", piecesRoutes);
app.use("/pieces/:id/comments", commentRoutes);
app.use("/users/:user_id", userRoutes);
app.use("/notifications", notificationRoutes);
app.use("/", indexRoutes);

//SeedDB
// seedDB();

//Start Server
app.listen(process.env.PORT || 3000, () => {
	console.log("Server Started!");
});