Algorithm-complexity-visualizer/next.config.js at main · InfinityZero3000/Algorithm-complexity-visualizer · GitHub

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/** @type {import('next').NextConfig} */
const nextConfig = {
  reactStrictMode: true,

  // Optimization for production
  swcMinify: true,

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

  // Image optimization
  images: {
    domains: [],
    formats: ['image/webp', 'image/avif'],
  },

  // Compression
  compress: true,

  // PoweredByHeader
  poweredByHeader: false,

  // Trailing slash
  trailingSlash: false,

  // Environment variables
  env: {
    CUSTOM_KEY: process.env.CUSTOM_KEY,
  },

  // Webpack optimizations for better performance
  webpack: (config, { dev, isServer }) => {
    // Split chunks for better caching
    if (!dev && !isServer) {
      config.optimization.splitChunks = {
        chunks: 'all',
        cacheGroups: {
          animations: {
            name: 'animations',
            test: /[\\/]node_modules[\\/](framer-motion|animejs)[\\/]/,
            chunks: 'all',
            priority: 20,
          },
          ui: {
            name: 'ui',
            test: /[\\/]node_modules[\\/](lucide-react)[\\/]/,
            chunks: 'all',
            priority: 15,
          },
          vendor: {
            name: 'vendor',
            test: /[\\/]node_modules[\\/]/,
            chunks: 'all',
            priority: 10,
          },
        },
      };
    }

    return config;
  },

  // Headers for security and performance
  async headers() {
    return [
      {
        source: '/(.*)',
        headers: [
          {
            key: 'X-Frame-Options',
            value: 'DENY',
          },
          {
            key: 'X-Content-Type-Options',
            value: 'nosniff',
          },
          {
            key: 'Referrer-Policy',
            value: 'origin-when-cross-origin',
          },
          {
            key: 'Cache-Control',
            value: 'public, max-age=31536000, immutable',
          },
        ],
      },
    ];
  },

  // Experimental features
  experimental: {
    // Enable if needed
    // appDir: true,
  },
}

module.exports = nextConfig