app.js

// Imports
const express = require("express");
const handlebars = require("express-handlebars");
const bodyParser = require("body-parser");
const app = express();
const admin = require("./routes/admin");
const user = require("./routes/user");
const path = require("path");
const mongoose = require("mongoose");
const session = require("express-session");
const flash = require("connect-flash");
require("./models/Post");
const Post = mongoose.model("posts");
require("./models/Category");
const Category = mongoose.model("categories");
const passport = require("passport");
require("./config/auth")(passport);
const db = require("./config/db");
const version = require("./package.json").version;
// const i18n = require('./i18n')

// Config
// i18n
// app.use(i18n)
// Session
app.use(
  session({
    secret: "mydearsecret",
    resave: true,
    saveUninitialized: true
  })
  );
  app.use(passport.initialize());
  app.use(passport.session());
  app.use(flash());
  // Middleware
  app.use((req, res, next) => {
    res.locals.success_message = req.flash("success_message");
    res.locals.error_message = req.flash("error_message");
    res.locals.error = req.flash("error");
  res.locals.user = req.user || null;
  next();
});
// Body Parser
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
// Handlebars
app.engine("handlebars", handlebars({ defaultLayout: "main" }));
app.set("view engine", "handlebars");
// Mongoose
mongoose.Promise = global.Promise;
mongoose
  .connect(db.mongoURI, { useNewUrlParser: true, useUnifiedTopology: true })
  .then(() => {
    console.log("Mongonected!");
  })
  .catch(error => {
    console.log(
      "OH NO DATABASE HAS EXPLODED! because of\n============================================\n" +
        error +
        "\n============================================"
    );
  });
// Public
app.use(express.static(path.join(__dirname, "public")));

// Routes
app.get("/", (req, res) => {
  Post.find()
    .populate("category")
    .populate("user")
    .sort({ date: "DESC" })
    .then(posts => {
      res.render("index", { posts: posts });
    })
    .catch(error => {
      req.flash("error_message", "Whoops, Something gone wrong..." + error);
      res.redirect("/404");
    });
});

app.get("/post/:slug", (req, res) => {
  Post.findOne({ slug: req.params.slug })
    .populate("user")
    .then(post => {
      if (post) {
        res.render("post/index", { post: post });
      } else {
        req.flash("error_message", "Are you sure that post exists?");
        res.redirect("/");
      }
    })
    .catch(error => {
      req.flash(
        "error_msg",
        "The world is changing... and something gone wrong! "
      );
      res.redirect("/");
    });
});

app.get("/404", (req, res) => {
  res.send("Oh! you found a 404!");
});

app.use("/admin", admin);
app.use("/user", user);

app.get("/categories", (req, res) => {
  Category.find()
    .then(categories => {
      res.render("categories/index", { categories: categories });
    })
    .catch(error => {
      req.flash("error_message", "Thank you for this beautiful ERROR!");
      res.redirect("/");
    });
});

app.get("/categories/:slug", (req, res) => {
  Category.findOne({ slug: req.params.slug })
    .then(category => {
      if (category) {
        Post.find({ category: category._id })
          .then(posts => {
            res.render("categories/posts", {
              posts: posts,
              category: category
            });
          })
          .catch(error => {
            req.flash("error_message", "Error when listing posts...");
            res.redirect("/");
          });
      } else {
        req.flash("error_message", "This category doesn't exist");
        res.redirect("/");
      }
    })
    .catch(error => {
      req.flash("error_message", "Another one to the account!");
      console.log(error);
      res.redirect("/");
    });
});

app.get("posts", (req, res) => {
  res.send("Posts");
});

// Other
const PORT = process.env.PORT || 8080;
app.listen(PORT, () => {
  console.log("Server Up!");
});