Add dynamic sitemap

src/app/sitemap.ts

@@ -0,0 +1,25 @@
+import { createClient } from "@/utils/supabase/server";
+import { MetadataRoute } from "next";
+
+export default async function Sitemap(): Promise<MetadataRoute.Sitemap> {
+  let routes: MetadataRoute.Sitemap = [
+    { url: "/", lastModified: new Date().toISOString() },
+    { url: "/discover", lastModified: new Date().toISOString(), changeFrequency: "daily" as const },
+  ];
+
+  const supabase = await createClient();
+
+  const { data: hacks } = await supabase.from("hacks").select("slug,updated_at");
+  if (hacks) {
+    routes.push(...hacks.map((hack) => ({
+      url: `/hack/${hack.slug}`,
+      changeFrequency: "weekly" as const,
+      lastModified: hack.updated_at || new Date().toISOString(),
+    })));
+  }
+
+  return routes.map((route) => ({
+    ...route,
+    url: `${process.env.NEXT_PUBLIC_SITE_URL!}/${route.url}`,
+  }));
+}