const crypto = require('crypto')

/** @type {import('next').NextConfig} */
const nextConfig = {
  reactStrictMode: true,
  swcMinify: true,
  output: 'standalone',
  env: {
    NEXT_PUBLIC_API_URL: process.env.NEXT_PUBLIC_API_URL || 'http://localhost:12011',
  },
  webpack: (config, { dev, isServer }) => {
    // 在生產環境中禁用 HMR 相關功能
    if (!dev && !isServer) {
      config.optimization = {
        ...config.optimization,
        splitChunks: {
          chunks: 'all',
          cacheGroups: {
            default: false,
            vendors: false,
            framework: {
              chunks: 'all',
              name: 'framework',
              test: /(?<!node_modules.*)[\\/]node_modules[\\/](react|react-dom|scheduler|prop-types|use-subscription)[\\/]/,
              priority: 40,
              enforce: true,
            },
            lib: {
              test(module) {
                return module.size() > 160000 && /node_modules[/\\]/.test(module.identifier())
              },
              name(module) {
                const hash = crypto.createHash('sha1')
                hash.update(module.identifier())
                return hash.digest('hex').substring(0, 8)
              },
              priority: 30,
              minChunks: 1,
              reuseExistingChunk: true,
            },
            commons: {
              name: 'commons',
              minChunks: 2,
              priority: 20,
            },
          },
        },
      }
    }
    return config
  },
  async rewrites() {
    return [
      {
        source: '/api/:path*',
        destination: `${process.env.NEXT_PUBLIC_API_URL || 'http://localhost:12011'}/api/:path*`,
      },
    ]
  },
  images: {
    domains: ['localhost'],
  },
}

module.exports = nextConfig