import type { NextConfig } from 'next';
import createNextIntlPlugin from 'next-intl/plugin';

const withNextIntl = createNextIntlPlugin('./i18n/request.ts');

const isExport = process.env.NEXT_STANDALONE_EXPORT === 'true';

const nextConfig: NextConfig = {
  reactCompiler: true,
  // Prevent 308 redirects on /api/* trailing slashes; dev rewrites proxy legacy APIs as-is.
  skipTrailingSlashRedirect: true,
  experimental: {
    turbopackFileSystemCacheForBuild: true,
  },
  ...(isExport
    ? { output: 'export' }
    : {
        async redirects() {
          return [
            { source: '/openflare', destination: '/', permanent: true },
            {
              source: '/openflare/:path*',
              destination: '/:path*',
              permanent: true,
            },
            { source: '/home', destination: '/', permanent: true },
          ];
        },
        async rewrites() {
          const backendUrl =
            process.env.WAVELET_BACKEND_URL || 'http://localhost:3000';
          return [
            // 上传文件静态资源
            {
              source: '/f/:id',
              destination: `${backendUrl}/f/:id`,
            },
            // robots.txt 路由代理到后端动态接口
            {
              source: '/robots.txt',
              destination: `${backendUrl}/robots.txt`,
            },
            // 标准 RESTful API 接口
            {
              source: '/api/:path*',
              destination: `${backendUrl}/api/:path*`,
            },
          ];
        },
      }),
};

export default withNextIntl(nextConfig);