const http = require("http");
const fs = require("fs");
const path = require("path");

const root = path.resolve(__dirname, "..", "outputs");
const port = 8088;

const types = {
  ".html": "text/html; charset=utf-8",
  ".css": "text/css; charset=utf-8",
  ".js": "application/javascript; charset=utf-8",
  ".json": "application/json; charset=utf-8",
};

const server = http.createServer((req, res) => {
  const url = new URL(req.url, `http://${req.headers.host}`);
  let pathname = decodeURIComponent(url.pathname);
  if (pathname === "/") pathname = "/sales_crm_demo.html";
  const file = path.resolve(root, `.${pathname}`);

  if (!file.startsWith(root)) {
    res.writeHead(403);
    res.end("Forbidden");
    return;
  }

  fs.readFile(file, (err, data) => {
    if (err) {
      res.writeHead(404, { "Content-Type": "text/plain; charset=utf-8" });
      res.end("Not found");
      return;
    }
    res.writeHead(200, { "Content-Type": types[path.extname(file)] || "application/octet-stream" });
    res.end(data);
  });
});

server.listen(port, "0.0.0.0", () => {
  console.log(`Sales CRM demo is running at http://0.0.0.0:${port}/`);
});