From 2e7d98420900e1d6749729ea2a94c334e7d65754 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Mon, 27 Apr 2026 07:12:51 +0000
Subject: fix: guard generateMetadata against NaN and sub-1 page numbers

Agent-Logs-Url: https://github.com/bertyuan/next-blog/sessions/a183ee36-4a5d-49b3-a43d-dba5985217dd

Co-authored-by: bertyuan <189593334+bertyuan@users.noreply.github.com>
---
 src/app/(main)/(home)/posts/page.tsx | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

(limited to 'src/app/(main)/(home)/posts/page.tsx')

diff --git a/src/app/(main)/(home)/posts/page.tsx b/src/app/(main)/(home)/posts/page.tsx
index 376f5c1..45016a4 100644
--- a/src/app/(main)/(home)/posts/page.tsx
+++ b/src/app/(main)/(home)/posts/page.tsx
@@ -128,7 +128,7 @@ export async function generateMetadata(
 ): Promise<Metadata> {
   const searchParams = await props.searchParams;
 
-  const pageIndex = searchParams.page
+  const rawPage = searchParams.page
     ? Number.parseInt(
         Array.isArray(searchParams.page)
           ? (searchParams.page[0] ?? '')
@@ -137,13 +137,15 @@ export async function generateMetadata(
       )
     : 1;
 
-  const isFirstPage = pageIndex === 1 || !searchParams.page;
-  const pageTitle = isFirstPage ? 'Posts' : `Posts - Page ${pageIndex}`;
-  const canonicalUrl = isFirstPage ? '/posts' : `/posts?page=${pageIndex}`;
+  if (Number.isNaN(rawPage) || rawPage < 1) notFound();
+
+  const isFirstPage = rawPage === 1 || !searchParams.page;
+  const pageTitle = isFirstPage ? 'Posts' : `Posts - Page ${rawPage}`;
+  const canonicalUrl = isFirstPage ? '/posts' : `/posts?page=${rawPage}`;
 
   return createMetadata({
     title: pageTitle,
-    description: `Posts${!isFirstPage ? ` - Page ${pageIndex}` : ''}`,
+    description: `Posts${!isFirstPage ? ` - Page ${rawPage}` : ''}`,
     openGraph: {
       url: canonicalUrl,
     },
-- 
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