From 9784694e949ec1f9c3040e2e6c29f221685b848c Mon Sep 17 00:00:00 2001
From: multipleof4 <planetrenox@protonmail.com>
Date: Sat, 11 Oct 2025 08:50:43 -0700
Subject: [PATCH] Refactor: Use atomic upsert for efficient analytics

---
 functions/[slug].js | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/functions/[slug].js b/functions/[slug].js
index 23d5311..08bc470 100644
--- a/functions/[slug].js
+++ b/functions/[slug].js
@@ -1,7 +1,18 @@
-export async function onRequestGet({ request, params, env, next }) {
+export async function onRequestGet({ request, params, env, next, waitUntil }) {
   if (['abuse', 'admin', 'api', 'dash', 'acceptable-use'].includes(params.slug)) return next();
   try {
     const dest = await env.KV_EV.get(params.slug);
+    if (dest) {
+      waitUntil((async () => {
+        let ref = 'direct';
+        try { ref = new URL(request.headers.get('Referer')).hostname } catch {}
+        const stmt = `
+          INSERT INTO analytics (slug, referrer, count) VALUES (?, ?, 1)
+          ON CONFLICT(slug, referrer) DO UPDATE SET count = count + 1;
+        `;
+        await env.D1_EV.prepare(stmt).bind(params.slug, ref).run().catch(console.error);
+      })());
+    }
     const url = dest ? `https://${dest}` : new URL('/', request.url).href;
     return Response.redirect(url, dest ? 301 : 302);
   } catch (e) {