/** @type {import('next').NextConfig} */

const securityHeaders = [
  {
    key: "Content-Security-Policy",
    value: [
      "default-src 'self'",
      "script-src 'self' 'unsafe-eval' 'unsafe-inline'",  
      "style-src 'self' 'unsafe-inline' https://fonts.googleapis.com",
      "font-src 'self' https://fonts.gstatic.com",
      "img-src 'self' data: blob: https:", 
      `connect-src 'self' ${process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8000'}`,
      "frame-src 'none'",
      "object-src 'none'",
      "base-uri 'self'",
      "form-action 'self'",
    ].join("; ")
  },
  { key: "X-DNS-Prefetch-Control", value: "on" },
  { key: "X-Frame-Options", value: "SAMEORIGIN" },
  { key: "X-Content-Type-Options", value: "nosniff" },
  { key: "Referrer-Policy", value: "strict-origin-when-cross-origin" },
];

const nextConfig = {
  output: "standalone",
  experimental: {
    serverActions: true,
  },
  images: {
    domains: [(process.env.NEXT_PUBLIC_API_URL || 'localhost').replace(/^https?:\/\//, '').split(':')[0]],
  },
  async headers() {
    return [
      {
        source: "/(.*)",
        headers: securityHeaders,
      },
    ];
  },
};

module.exports = nextConfig;