import { registerOTel } from "@vercel/otel";

export function register() {
  registerOTel("myapp");

  // HINT: // https://github.com/vercel/next.js/issues/51404
  // Make sure commands gracefully respect termination signals (e.g. from Docker)
  // Allow the graceful termination to be manually configurable
  if (
    process.env.NEXT_RUNTIME === "nodejs" &&
    process.env.NEXT_MANUAL_SIG_HANDLE === "true"
  ) {
    process.on("SIGTERM", async () => {
      console.info("Received SIGTERM: ", "starting graceful shutdown");
      // TODO: gracefully shutdown any resources
      await shutdown();
    });
    process.on("SIGINT", async () => {
      console.info("Received SIGINT: ", "starting graceful shutdown");
      await shutdown();
    });
  }
}

async function shutdown() {
  const fs = await import("node:fs");
  fs.writeFileSync("/tmp/shutdown", "1");

  setTimeout(() => {
    process.exit(0);
  }, 20 * 1000); // 20 secs shutdown timeout
}

import { type NextRequest, NextResponse } from "next/server";

const publicRoutes = /^\/($|about$|terms$|privacy$|blog(\/.*)?$)/;
 
 
export async function proxy(request: NextRequest) {
  const { pathname, hostname, search } = request.nextUrl;

  // Do not implement middleware for the public path
  if (publicRoutes.test(pathname)) {
    return NextResponse.next();
  }

  // Check if the request is for the health endpoint and from localhost
  if (
    pathname.startsWith("/healthz") &&
    (hostname === "localhost" || hostname === "127.0.0.1")
  ) {
    return NextResponse.next(); // Skip authentication
  }

  ...