app.js

const path = require("path");

const express = require("express");
const bodyParser = require("body-parser");
const mongoose = require("mongoose");
const multer = require("multer");

const feedRoutes = require("./routes/feed");
const authRoutes = require("./routes/auth");

const compression = require("compression");

const app = express();

require("dotenv").config();

console.log(process.env.Node_ENV || "development");

const MONGODB_URI = `mongodb+srv://${process.env.MONGO_USER}:${process.env.MONGO_PASSWORD}@cluster0.3kahrkm.mongodb.net/${process.env.MONGO_DEFAULT_DATABASE}?retryWrites=true&w=majority`;

const fileStorage = multer.diskStorage({
  destination: (req, file, cb) => {
    cb(null, "images");
  },
  filename: (req, file, cb) => {
    const datePart = new Date()
      .toISOString()
      .replace(/:/g, "-")
      .replace(/\./g, "-");
    cb(null, datePart + "-" + file.originalname);
  },
});

const fileFilter = (req, file, cb) => {
  if (
    file.mimetype === "image/png" ||
    file.mimetype === "image/jpg" ||
    file.mimetype === "image/jpeg"
  ) {
    cb(null, true);
  } else {
    cb(null, false);
  }
};

app.use(compression());

// app.use(bodyParser.urlencoded()); // x-www-form-urlencoded <form>
app.use(bodyParser.json()); // application/json
app.use(
  multer({ storage: fileStorage, fileFilter: fileFilter }).single("image")
);
app.use("/images", express.static(path.join(__dirname, "images")));

// CORS
app.use((req, res, next) => {
  res.setHeader("Access-Control-Allow-Origin", "*"); // * or domain
  res.setHeader(
    "Access-Control-Allow-Methods",
    "GET, POST, PUT, PATCH, DELETE, OPTIONS"
  );
  res.setHeader("Access-Control-Allow-Headers", "Content-Type, Authorization");
  next();
});

app.use("/feed", feedRoutes);
app.use("/auth", authRoutes);

app.use((error, req, res, next) => {
  console.log(error);
  const status = error.statusCode || 500;
  const message = error.message;
  const data = error.data;
  res.status(status).json({ message: message, data: data });
});


mongoose
  .connect(MONGODB_URI)
  .then((result) => {
    const server = app.listen(process.env.PORT || 8080);
    const io = require("./socket").init(server);
    io.on("connection", (socket) => {
      console.log("Client connected");
    });
  })
  .catch((err) => console.log(err));