const withBundleAnalyzer = require('@next/bundle-analyzer')({
  enabled: process.env.BUNDLE_ANALYZER === 'true',
});

const withRoutes = require('nextjs-routes/config')({
  outDir: 'nextjs',
});

const headers = require('./nextjs/headers');
const redirects = require('./nextjs/redirects');
const rewrites = require('./nextjs/rewrites');

/** @type {import('next').NextConfig} */
const moduleExports = {
  transpilePackages: [
    'react-syntax-highlighter',
    '@luxfi/ui',
    '@hanzogui/core',
    '@hanzogui/tooltip',
    '@hanzogui/popover',
    '@hanzogui/text',
    '@hanzogui/dialog',
    '@hanzogui/web',
  ],
  reactStrictMode: true,
  webpack(config) {
    config.module.rules.push(
      {
        test: /\.svg$/,
        use: [ '@svgr/webpack' ],
      },
    );
    config.resolve.fallback = { fs: false, net: false, tls: false, async_hooks: false };
    config.resolve.alias = {
      ...config.resolve.alias,
      // MetaMask SDK tries to import this RN module; stub it out for web.
      '@react-native-async-storage/async-storage': false,
    };
    config.externals.push('pino-pretty', 'lokijs', 'encoding');

    config.experiments = { ...config.experiments, topLevelAwait: true };
    // Tell webpack the target supports async/await so it stops warning about top-level await
    // Top-level await is belong to ES2017 specification that is adopted by all major browsers and Node.js.
    config.output.environment = {
      ...config.output.environment,
      asyncFunction: true,
    };

    return config;
  },
  // NOTE: all config functions should be static and not depend on any environment variables
  // since all variables will be passed to the app only at runtime and there is now way to change Next.js config at this time
  // if you are stuck and strongly believe what you need some sort of flexibility here please fill free to join the discussion
  // https://github.com/blockscout/frontend/discussions/167
  rewrites,
  redirects,
  headers,
  typescript: {
    // @luxfi/ui + @hanzogui type mismatches with existing codebase.
    ignoreBuildErrors: true,
  },
  output: 'standalone',
  outputFileTracingRoot: __dirname,
  productionBrowserSourceMaps: false,
  serverExternalPackages: ["@opentelemetry/sdk-node", "@opentelemetry/auto-instrumentations-node"],
  experimental: {
    staleTimes: {
      dynamic: 30,
      'static': 180,
    },
  },
};

module.exports = withBundleAnalyzer(withRoutes(moduleExports));