const express = require("express");
const path = require("path");
const cors = require("cors");
const mongoose = require("mongoose");
const cookieParser = require("cookie-parser");
require("dotenv").config();

const indexRouter = require("./routes/index.js");
const postRouter = require("./routes/post.js");
const userRouter = require("./routes/user.js");

const app = express();

// get db
const mongoDB = `mongodb+srv://${process.env.USER}:${process.env.PASS}@odin.eftl02o.mongodb.net/blogAPI?retryWrites=true&w=majority`;
// or throw error
main().catch((err) => console.log(err));
async function main() {
  await mongoose.connect(mongoDB);
}

// set paths
app.use(
  "/styles/css",
  express.static(path.join(__dirname, "node_modules/bootstrap/dist/css"))
);
app.use(express.static(path.join(__dirname, "public")));

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

// parsing
app.use(cookieParser());
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(express.static(path.join(__dirname, "public")));

// cors
app.use(
  cors({
    origin: true,
    credentials: true,
    methods: ["GET", "PUT", "POST", "DELETE"],
    allowedHeaders: [
      "Access-Control-Allow-Headers",
      "Origin, X-Requested-With, Content-Type, Accept",
    ],
    preflightContinue: true,
  })
);

// routing
app.use("/", indexRouter);
app.use("/post", postRouter);
app.use("/user", userRouter);

module.exports = app;