const express = require("express");
const fs = require("fs");
const path = require("path");
const config = require("./config");
const cookieParser = require("cookie-parser");
const cors = require("cors");
const rateLimit = require("express-rate-limit");
const slowDown = require("express-slow-down");
require("dotenv").config();

const app = express();
var expressWs = require('express-ws')(app);
const port = config.port || 3000;

const limiter = rateLimit({
  windowMs: 3 * 1000,
  max: 20,
});

const speedLimiter = slowDown({
  windowMs: 3 * 1000,
  delayAfter: 20,
  delayMs: () => 5000,
});

app.use(speedLimiter);
app.use(limiter);
app.use(express.json());
app.use(cookieParser());
app.use(cors());

const { router, socketsMiddleware } = require("./libs/middlewares");
app.use("/api/ws", router);
app.use(socketsMiddleware);

function loadRoutes(folderName) {
  const routesPath = path.join(__dirname, folderName);
  const files = fs.readdirSync(routesPath);
  files.forEach((file) => {
    if (fs.lstatSync(path.join(routesPath, file)).isDirectory()) {
      loadRoutes(`${folderName}/${file}`);
      return;
    }
    const filePath = path.join(routesPath, file);
    const route = require(filePath);
    app.use(`/${folderName}/${file.split(".")[0]}`, route);
  });
}

loadRoutes("api");

app.use(express.static("public"));
app.get("*", (req, res) => {
  res.sendFile(path.join(__dirname, "public", "index.html"));
});

app.listen(port, () => {
  console.log(`Server listening on port ${port}`);
});