// /pages/api/gis-proxy.js
// Importieren der erforderlichen Module
import httpProxy from "http-proxy";
import Cookies from "cookies";

// Erstellen eines Proxy-Servers
const proxy = httpProxy.createProxyServer();

export default (req, res) => {
  return new Promise((resolve) => {
    // CORS-Headers einstellen
    res.setHeader("Access-Control-Allow-Credentials", true);
    res.setHeader("Access-Control-Allow-Origin", "*");

    // Cookies initialisieren
    const cookies = new Cookies(req, res);
    const targetUrl = `${process.env.NEXT_PUBLIC_SERVER_URL}/talas5/ClientData/WebserviceMap.asmx/GisSystemStatic`;

    // Proxy-Konfiguration und Event-Listener
    req.on("data", () => {});
    req.on("end", () => {
      proxy.web(req, res, { target: targetUrl, changeOrigin: true, selfHandleResponse: false }, (e) => {
        if (e) {
          console.error(e);
          res.status(500).json({ error: "Proxy-Fehler", e });
        }
        resolve();
      });
    });

    // Weiterleitung der Headers
    req.headers.cookie = cookies.get("cookie-name") || "";
  });
};