next.config.mjs

import nextPWA from '@ducanh2912/next-pwa';
import analyzer from '@next/bundle-analyzer';
import { withSentryConfig } from '@sentry/nextjs';

const isProd = process.env.NODE_ENV === 'production';
const buildWithDocker = process.env.DOCKER === 'true';

// if you need to proxy the api endpoint to remote server
const API_PROXY_ENDPOINT = process.env.API_PROXY_ENDPOINT || '';

const basePath = process.env.NEXT_PUBLIC_BASE_PATH;

/** @type {import('next').NextConfig} */
const nextConfig = {
  compress: isProd,
  basePath,
  experimental: {
    optimizePackageImports: [
      'emoji-mart',
      '@emoji-mart/react',
      '@emoji-mart/data',
      '@icons-pack/react-simple-icons',
      '@lobehub/ui',
      'gpt-tokenizer',
      'chroma-js',
      'shiki',
    ],
    webVitalsAttribution: ['CLS', 'LCP'],
  },

  output: buildWithDocker ? 'standalone' : undefined,

  redirects: async () => [
    {
      source: '/settings',
      permanent: true,
      destination: '/settings/common',
    },
  ],
  rewrites: async () => [
    // due to google api not work correct in some countries
    // we need a proxy to bypass the restriction
    { source: '/api/chat/google', destination: `${API_PROXY_ENDPOINT}/api/chat/google` },
  ],
  reactStrictMode: true,

  webpack(config) {
    config.experiments = {
      asyncWebAssembly: true,
      layers: true,
    };

    // to fix shikiji compile error
    // refs: https://github.com/antfu/shikiji/issues/23
    config.module.rules.push({
      test: /\.m?js$/,
      type: 'javascript/auto',
      resolve: {
        fullySpecified: false,
      },
    });

    // https://github.com/pinojs/pino/issues/688#issuecomment-637763276
    config.externals.push('pino-pretty');

    return config;
  },

  async headers() {
    return [
      {
        source: '/icons/(.*).(png|jpe?g|gif|svg|ico|webp)',
        headers: [
          {
            key: 'Cache-Control',
            value: 'public, max-age=31536000, immutable',
          },
        ],
      },
      {
        source: '/images/(.*).(png|jpe?g|gif|svg|ico|webp)',
        headers: [
          {
            key: 'Cache-Control',
            value: 'public, max-age=31536000, immutable',
          },
        ],
      },
      {
        source: '/videos/(.*).(mp4|webm|ogg|avi|mov|wmv|flv|mkv)',
        headers: [
          {
            key: 'Cache-Control',
            value: 'public, max-age=31536000, immutable',
          },
        ],
      },
      {
        source: '/screenshots/(.*).(png|jpe?g|gif|svg|ico|webp)',
        headers: [
          {
            key: 'Cache-Control',
            value: 'public, max-age=31536000, immutable',
          },
        ],
      },
      {
        source: '/og/(.*).(png|jpe?g|gif|svg|ico|webp)',
        headers: [
          {
            key: 'Cache-Control',
            value: 'public, max-age=31536000, immutable',
          },
        ],
      },
      {
        source: '/favicon.ico',
        headers: [
          {
            key: 'Cache-Control',
            value: 'public, max-age=31536000, immutable',
          },
        ],
      },
      {
        source: '/favicon-32x32.ico',
        headers: [
          {
            key: 'Cache-Control',
            value: 'public, max-age=31536000, immutable',
          },
        ],
      },
      {
        source: '/apple-touch-icon.png',
        headers: [
          {
            key: 'Cache-Control',
            value: 'public, max-age=31536000, immutable',
          },
        ],
      },
    ];
  },
};

const noWrapper = (config) => config;

const withBundleAnalyzer = process.env.ANALYZE === 'true' ? analyzer() : noWrapper;

const withPWA = isProd
  ? nextPWA({
      dest: 'public',
      register: true,
      workboxOptions: {
        skipWaiting: true,
      },
    })
  : noWrapper;

const hasSentry = !!process.env.NEXT_PUBLIC_SENTRY_DSN;
const withSentry =
  isProd && hasSentry
    ? (c) =>
        withSentryConfig(
          c,
          {
            // For all available options, see:
            // https://github.com/getsentry/sentry-webpack-plugin#options

            // Suppresses source map uploading logs during build
            silent: true,
            org: process.env.SENTRY_ORG,
            project: process.env.SENTRY_PROJECT,
          },
          {
            // For all available options, see:
            // https://docs.sentry.io/platforms/javascript/guides/nextjs/manual-setup/

            // Upload a larger set of source maps for prettier stack traces (increases build time)
            widenClientFileUpload: true,

            // Transpiles SDK to be compatible with IE11 (increases bundle size)
            transpileClientSDK: true,

            // Routes browser requests to Sentry through a Next.js rewrite to circumvent ad-blockers. (increases server load)
            // Note: Check that the configured route will not match with your Next.js middleware, otherwise reporting of client-
            // side errors will fail.
            tunnelRoute: '/monitoring',

            // Hides source maps from generated client bundles
            hideSourceMaps: true,

            // Automatically tree-shake Sentry logger statements to reduce bundle size
            disableLogger: true,

            // Enables automatic instrumentation of Vercel Cron Monitors.
            // See the following for more information:
            // https://docs.sentry.io/product/crons/
            // https://vercel.com/docs/cron-jobs
            automaticVercelMonitors: true,
          },
        )
    : noWrapper;

export default withBundleAnalyzer(withPWA(withSentry(nextConfig)));