From 7394a1c94ce16aa3b4c3a2ff9b95e7f1aed72fb2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=CA=9C=C9=AA=C9=B4=E1=B4=87=C9=AA=20N=E1=B4=8F=E1=B4=9C?=
 =?UTF-8?q?=E1=B4=A2=E1=B4=87=C9=B4?=
 <157171073+Shineii86@users.noreply.github.com>
Date: Thu, 25 Jun 2026 10:00:28 +0530
Subject: [PATCH] Improve random entropy with multi-source seed

---
 src/routes/apiRoutes.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/routes/apiRoutes.js b/src/routes/apiRoutes.js
index 5c4ebaf..325a3a3 100644
--- a/src/routes/apiRoutes.js
+++ b/src/routes/apiRoutes.js
@@ -320,10 +320,11 @@ const createApiRoutes = (jsonResponse, jsonError, startTime) => {
   // ---- FEATURE: Random anime of the day ----
   router.get("/random", async (req, res) => {
     try {
-      // NOTE: Use Date.now() + process.hrtime for randomness in serverless
+      // NOTE: Use multiple entropy sources for randomness in serverless
+      const now = Date.now();
       const hrtime = process.hrtime();
-      const seed = Date.now() ^ (hrtime[0] * 1000 + hrtime[1]);
-      const randomPage = (Math.abs(seed) % 499) + 1;
+      const entropy = (now * 31 + hrtime[0] * 17 + hrtime[1] * 13) ^ (process.pid * 7);
+      const randomPage = (Math.abs(entropy) % 499) + 1;
       const data = await anilist.getCollection("POPULARITY_DESC", null, randomPage, 1);
       const anime = data.results[0];