sysrot-hub/template/next.config.js

CLI de nueva generación para proyectos Next.js 14+ con IA multi-modelo, Web3 integration, internacionalización completa y roadmap realista 2025-2026

/** @type {import('next').NextConfig} */
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer');

const nextConfig = {
  reactStrictMode: true,
  swcMinify: true,
  
  // Enhanced i18n configuration
  i18n: {
    locales: ['es', 'en'],
    defaultLocale: 'es',
    localeDetection: false,
  },

  // Advanced image optimization
  images: {
    remotePatterns: [
      {
        protocol: 'https',
        hostname: 'res.cloudinary.com',
        port: '',
        pathname: '/**',
      },
      {
        protocol: 'https',
        hostname: 'images.unsplash.com',
        port: '',
        pathname: '/**',
      },
    ],
    deviceSizes: [640, 750, 828, 1080, 1200, 1920, 2048, 3840],
    imageSizes: [16, 32, 48, 64, 96, 128, 256, 384],
    formats: ['image/webp', 'image/avif'],
    minimumCacheTTL: 86400, // 24 hours
    dangerouslyAllowSVG: true,
    contentSecurityPolicy: "default-src 'self'; script-src 'none'; sandbox;",
  },

  // Performance optimizations
  experimental: {
    optimizePackageImports: ['lucide-react', 'framer-motion'],
    optimizeCss: true,
    webVitalsAttribution: ['CLS', 'LCP'],
  },

  // Compression and optimization
  compress: true,
  poweredByHeader: false,
  
  // PWA and Service Worker preparation
  pageExtensions: ['js', 'jsx', 'ts', 'tsx', 'md', 'mdx'],

  // Webpack configuration
  webpack: (config, { buildId, dev, isServer, defaultLoaders, webpack }) => {
    // Bundle analyzer
    if (process.env.ANALYZE === 'true') {
      config.plugins.push(
        new BundleAnalyzerPlugin({
          analyzerMode: 'server',
          analyzerPort: isServer ? 8888 : 8889,
          openAnalyzer: true,
        })
      );
    }

    // Performance optimizations
    if (!dev && !isServer) {
      config.optimization = {
        ...config.optimization,
        splitChunks: {
          chunks: 'all',
          minSize: 20000,
          maxSize: 244000,
          cacheGroups: {
            vendor: {
              test: /[\\/]node_modules[\\/]/,
              name: 'vendors',
              chunks: 'all',
            },
            common: {
              name: 'common',
              minChunks: 2,
              chunks: 'all',
              enforce: true,
            },
          },
        },
      };
    }

    // Critical CSS and resource hints will be handled by custom _document
    return config;
  },

  // Headers for performance and security
  async headers() {
    return [
      {
        source: '/(.*)',
        headers: [
          {
            key: 'X-DNS-Prefetch-Control',
            value: 'on'
          },
          {
            key: 'X-XSS-Protection',
            value: '1; mode=block'
          },
          {
            key: 'X-Frame-Options',
            value: 'SAMEORIGIN'
          },
          {
            key: 'X-Content-Type-Options',
            value: 'nosniff'
          },
          {
            key: 'Referrer-Policy',
            value: 'origin-when-cross-origin'
          },
        ],
      },
      {
        source: '/sw.js',
        headers: [
          {
            key: 'Cache-Control',
            value: 'public, max-age=0, must-revalidate',
          },
        ],
      },
    ];
  },
}

module.exports = nextConfig