import type { NextConfig } from "next";

const securityHeaders = [
  {
    key: "X-DNS-Prefetch-Control",
    value: "on",
  },
  {
    key: "Strict-Transport-Security",
    value: "max-age=63072000; includeSubDomains; preload",
  },
  {
    key: "X-Content-Type-Options",
    value: "nosniff",
  },
  {
    key: "X-Frame-Options",
    value: "DENY",
  },
  {
    key: "X-XSS-Protection",
    value: "1; mode=block",
  },
  {
    key: "Referrer-Policy",
    value: "strict-origin-when-cross-origin",
  },
  {
    key: "Permissions-Policy",
    value: "camera=(), microphone=(), geolocation=()",
  },
];

const nextConfig: NextConfig = {
  serverExternalPackages: ["@copilotkit/runtime"],

  // Enable standalone output for Docker
  output: "standalone",

  async headers() {
    return [
      {
        source: "/(.*)",
        headers: securityHeaders,
      },
    ];
  },

  // Production optimizations
  poweredByHeader: false,
  reactStrictMode: true,

  // Compress responses
  compress: true,
};

export default nextConfig;