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src/app/sitemap.ts

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+import { MetadataRoute } from 'next';
+
+const SITE_URL = process.env.NEXT_PUBLIC_SITE_URL ?? 'https://antiplagiat.uz';
+const LOCALES = ['uz', 'ru', 'en'] as const;
+
+// Add your static page slugs here
+const STATIC_ROUTES = ['', '/about', '/history', '/contact'];
+
+export default function sitemap(): MetadataRoute.Sitemap {
+  const entries: MetadataRoute.Sitemap = [];
+
+  for (const locale of LOCALES) {
+    for (const route of STATIC_ROUTES) {
+      entries.push({
+        url: `${SITE_URL}/${locale}${route}`,
+        lastModified: new Date(),
+        changeFrequency: route === '' ? 'daily' : 'weekly',
+        priority: route === '' ? 1.0 : 0.8,
+        alternates: {
+          languages: Object.fromEntries(
+            LOCALES.map((l) => [l, `${SITE_URL}/${l}${route}`]),
+          ),
+        },
+      });
+    }
+  }
+
+  return entries;
+}