/** @type {import('next').NextConfig} */
const nextConfig = {
  output: 'standalone', // Enable standalone output for optimized Docker builds
  
  // Optimize build performance with swcMinify
  swcMinify: true,
  
  // Limit the number of CPU cores used during production build
  experimental: {
    cpus: Math.max(1, Math.min(4, require('os').cpus().length - 1)),
  },
  
  // Configure images for Supabase Storage URLs
  images: {
    domains: [
      // Extract domain from NEXT_PUBLIC_SUPABASE_URL if available
      process.env.NEXT_PUBLIC_SUPABASE_URL ? new URL(process.env.NEXT_PUBLIC_SUPABASE_URL).hostname : '',
    ].filter(Boolean), // Remove empty entries
    // Optimize image formats for better performance
    formats: ['image/webp'],
  },

  serverActions: {
    bodySizeLimit: '10mb',
  },

  // Enable better caching for production builds
  poweredByHeader: false,
  reactStrictMode: true,
  
  // Optimize Webpack
  webpack: (config, { dev, isServer }) => {
    // Only enable cache during development
    if (dev) {
      config.cache = true;
    }
    
    // Optimize production build
    if (!dev) {
      config.optimization = {
        ...config.optimization,
        // Minimize hashing calculation time
        moduleIds: 'deterministic',
        // Minimize concurrent processing
        sideEffects: true,
      };
    }
    
    return config;
  },
};

module.exports = nextConfig;