import bundleAnalyzer from '@next/bundle-analyzer';

const withBundleAnalyzer = bundleAnalyzer({ enabled: process.env.ANALYZE === 'true' });

/** @type {import('next').NextConfig} */
const baseConfig = {
  output: 'standalone',
  reactStrictMode: false,
  compress: process.env.NODE_ENV === 'production',
  images: {
    remotePatterns: [
      {
        protocol: "https",
        hostname: "api.telegram.org",
      },
      {
        protocol: "https",
        hostname: "telegram.org",
      },
      ...(process.env.API_HOSTNAME ? [{
        protocol: "https",
        hostname: process.env.API_HOSTNAME,
      }] : []),
    ],
  },
  async rewrites() {
    const apiBaseUrl = process.env.API_BASE_URL;
    
    if (!apiBaseUrl || apiBaseUrl === 'undefined') {
      console.warn('⚠️  API_BASE_URL not set! Set it to your backend domain');
      console.warn('⚠️  Using localhost fallback - this will fail in production!');
      return [
        {
          source: '/api/:path*',
          destination: 'http://localhost:3001/api/:path*',
        },
      ];
    }
    
    console.log(`🔗 API rewrites pointing to: ${apiBaseUrl}`);
    return [
      {
        source: '/api/:path*',
        destination: `${apiBaseUrl}/api/:path*`,
      },
    ];
  },
  compiler: {
    removeConsole: process.env.NODE_ENV === 'production' ? {
      exclude: ['error', 'warn'],
    } : false,
  },
  poweredByHeader: false,
  webpack: (config, { isServer, dev }) => {
    if (!isServer && !dev) {
      // Only apply aggressive code splitting in production
      config.optimization = {
        ...config.optimization,
        moduleIds: 'deterministic',
        splitChunks: {
          chunks: 'all',
          cacheGroups: {
            default: false,
            vendors: false,
            recharts: {
              test: /[\\/]node_modules[\\/]recharts[\\/]/,
              name: 'recharts',
              chunks: 'all',
              priority: 30,
            },
            radix: {
              test: /[\\/]node_modules[\\/]@radix-ui[\\/]/,
              name: 'radix-ui',
              chunks: 'all',
              priority: 25,
            },
            reactMarkdown: {
              test: /[\\/]node_modules[\\/]react-markdown[\\/]/,
              name: 'react-markdown',
              chunks: 'all',
              priority: 20,
            },
            dateFns: {
              test: /[\\/]node_modules[\\/]date-fns[\\/]/,
              name: 'date-fns',
              chunks: 'all',
              priority: 15,
            },
            framework: {
              name: 'framework',
              chunks: 'all',
              test: /[\\/]node_modules[\\/](react|react-dom|scheduler)[\\/]/,
              priority: 40,
              enforce: true,
            },
            commons: {
              name: 'commons',
              minChunks: 2,
              priority: 10,
            },
          },
        },
      };
    }
    return config;
  },
  onDemandEntries: {
    maxInactiveAge: 15 * 1000,
    pagesBufferLength: 2,
  },
  productionBrowserSourceMaps: false,
  typescript: {
    ignoreBuildErrors: true,
  },
  eslint: {
    ignoreDuringBuilds: true,
  },
};

const nextConfig = withBundleAnalyzer(baseConfig);

export default nextConfig;