import type { NextConfig } from "next";
import { networkInterfaces } from "os";

const getLocalIPs = () => {
  const ips: string[] = ["localhost", "127.0.0.1"];
  const nets = networkInterfaces();
  for (const name of Object.keys(nets)) {
    for (const net of nets[name] || []) {
      if (net.family === "IPv4" && !net.internal) {
        ips.push(net.address);
      }
    }
  }
  return ips;
};

const nextConfig: NextConfig = {
  allowedDevOrigins: getLocalIPs(),
  async headers() {
    return [
      {
        source: "/api/:path*",
        headers: [
          { key: "Access-Control-Allow-Origin", value: "*" },
          { key: "Access-Control-Allow-Methods", value: "GET,POST,PUT,DELETE,OPTIONS" },
          { key: "Access-Control-Allow-Headers", value: "Content-Type, Authorization" },
        ],
      },
    ];
  },
};

export default nextConfig;