feat: prerender public site pages

frontend/scripts/write-public-seo.mjs

@@ -0,0 +1,61 @@
+import { mkdir, writeFile } from 'node:fs/promises';
+import { resolve } from 'node:path';
+
+const publicRoutes = [
+  { path: '/', changefreq: 'weekly', priority: '1.0' },
+  { path: '/product', changefreq: 'weekly', priority: '0.8' },
+  { path: '/pricing', changefreq: 'monthly', priority: '0.7' },
+  { path: '/blogs', changefreq: 'weekly', priority: '0.6' },
+  { path: '/guides', changefreq: 'weekly', priority: '0.6' },
+];
+
+const disallowedRoutes = [
+  '/app/',
+  '/login',
+  '/register',
+  '/forgot-password',
+  '/reset-password',
+  '/verify-email',
+];
+
+const siteUrl = (process.env.VITE_PUBLIC_SITE_URL ?? process.env.SITE_URL ?? 'http://localhost:5173')
+  .replace(/\/$/, '');
+
+const distDir = resolve(process.cwd(), 'dist');
+
+function absoluteUrl(path) {
+  return new URL(path, `${siteUrl}/`).toString();
+}
+
+const robots = [
+  'User-agent: *',
+  'Allow: /',
+  ...disallowedRoutes.map(route => `Disallow: ${route}`),
+  '',
+  `Sitemap: ${absoluteUrl('/sitemap.xml')}`,
+  '',
+].join('\n');
+
+const sitemapEntries = publicRoutes
+  .map(route => [
+    '  <url>',
+    `    <loc>${absoluteUrl(route.path)}</loc>`,
+    `    <changefreq>${route.changefreq}</changefreq>`,
+    `    <priority>${route.priority}</priority>`,
+    '  </url>',
+  ].join('\n'))
+  .join('\n');
+
+const sitemap = [
+  '<?xml version="1.0" encoding="UTF-8"?>',
+  '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">',
+  sitemapEntries,
+  '</urlset>',
+  '',
+].join('\n');
+
+await mkdir(distDir, { recursive: true });
+await writeFile(resolve(distDir, 'robots.txt'), robots);
+await writeFile(resolve(distDir, 'sitemap.xml'), sitemap);
+
+console.log(`Wrote public SEO files for ${siteUrl}`);