import type { NextConfig } from "next";

const nextConfig: NextConfig = {
  // Enable standalone output for Docker
  output: 'standalone',

  // These server-side packages use Node.js internals (buffers, native modules, etc.)
  // and must not be bundled by Turbopack — they are required directly by Node.js at runtime.
  serverExternalPackages: ['pptxgenjs', 'dagre', 'elkjs'],

  // Serve dynamically uploaded files via API route (public/ is read-only in production)
  async rewrites() {
    return [
      {
        source: '/uploads/:path*',
        destination: '/api/uploads/:path*',
      },
    ]
  },

  // Image optimization (enabled for better performance)
  images: {
    formats: ['image/avif', 'image/webp'],
  },

  // Hide the "compiling" indicator
  devIndicators: false,

  // Disable strict mode: React 19 strict mode can cause double-invocation of render
  // functions during concurrent transitions, amplifying timing issues.
  reactStrictMode: false,

  // Allow development origins for HMR and Dev Server access
  // @ts-ignore - Some NextConfig versions might require this in experimental
  allowedDevOrigins: ['192.168.1.83'],
};

export default nextConfig;