fix : dedupe code

components/admin/admin-header.tsx

@@ -1,6 +1,5 @@
 "use client";
 
-import Image from "@/components/ui/resilient-image";
 import Link from "next/link";
 import { usePathname } from "next/navigation";
 import {
@@ -15,24 +14,13 @@ import {
 } from "lucide-react";
 
 import { Button } from "@/components/ui/button";
-import { PublicAccountMenu } from "@/components/public/public-account-menu";
-import { NotificationBell } from "@/components/notifications/notification-bell";
-import { ThemeSwitcher } from "@/components/theme-switcher";
+import { HeaderShell } from "@/components/header-shell";
 
 export function AdminHeader() {
   const pathname = usePathname();
 
-  return (<>
-    <header className="border-b bg-background/95 supports-backdrop-filter:backdrop-blur">
-      <div className="mx-auto flex min-h-16 w-full max-w-7xl flex-nowrap items-center gap-2 px-4 py-2 sm:px-6">
-        <Link
-          href="/admin"
-          aria-label="หน้าแอดมิน ไกด์เกนชินไม่ใช่เกมมือถือ"
-          className="mr-auto flex min-h-11 shrink-0 items-center gap-3 rounded-lg font-heading font-semibold focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
-        >
-          <Image src="/icon.png" alt="" width={36} height={36} className="size-9 object-contain" />
-          <span className="hidden lg:inline">ไกด์เกนชินไม่ใช่เกมมือถือ</span>
-        </Link>
+  return (
+    <HeaderShell homeHref="/admin" homeLabel="หน้าแอดมิน ไกด์เกนชินไม่ใช่เกมมือถือ">
       <nav aria-label="เมนูแอดมิน" className="flex min-w-0 flex-1 items-center gap-1 overflow-x-auto sm:justify-end">
         <Button variant={pathname.startsWith("/admin/comments") ? "secondary" : "ghost"} size="sm" nativeButton={false}
           render={<Link href="/admin/comments" prefetch={false} />} aria-label="ความคิดเห็น">
@@ -105,11 +93,6 @@ export function AdminHeader() {
           <ExternalLinkIcon />
         </Button>
       </nav>
-        <ThemeSwitcher />
-        <NotificationBell />
-        <PublicAccountMenu />
-      </div>
-    </header>
-    </>
+    </HeaderShell>
   );
 }

components/header-shell.tsx

@@ -0,0 +1,32 @@
+import type { ReactNode } from "react";
+import Link from "next/link";
+
+import Image from "@/components/ui/resilient-image";
+import { PublicAccountMenu } from "@/components/public/public-account-menu";
+import { NotificationBell } from "@/components/notifications/notification-bell";
+import { ThemeSwitcher } from "@/components/theme-switcher";
+
+export function HeaderShell({ homeHref, homeLabel, children }: {
+  homeHref: string;
+  homeLabel: string;
+  children: ReactNode;
+}) {
+  return (
+    <header className="border-b bg-background/95 supports-backdrop-filter:backdrop-blur">
+      <div className="mx-auto flex min-h-16 w-full max-w-7xl flex-nowrap items-center gap-2 px-4 py-2 sm:px-6">
+        <Link
+          href={homeHref}
+          aria-label={homeLabel}
+          className="mr-auto flex min-h-11 shrink-0 items-center gap-3 rounded-lg font-heading font-semibold focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
+        >
+          <Image src="/icon.png" alt="" width={36} height={36} className="size-9 object-contain" />
+          <span className="hidden lg:inline">ไกด์เกนชินไม่ใช่เกมมือถือ</span>
+        </Link>
+        {children}
+        <ThemeSwitcher />
+        <NotificationBell />
+        <PublicAccountMenu />
+      </div>
+    </header>
+  );
+}

components/public/site-header.tsx

@@ -1,4 +1,3 @@
-import Image from "@/components/ui/resilient-image";
 import Link from "next/link";
 import { Suspense } from "react";
 import { PencilIcon } from "lucide-react";
@@ -6,9 +5,7 @@ import { PencilIcon } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { VisitorPresence } from "@/components/public/visitor-presence";
 import { PublicNavigation } from "@/components/public/public-navigation";
-import { PublicAccountMenu } from "@/components/public/public-account-menu";
-import { NotificationBell } from "@/components/notifications/notification-bell";
-import { ThemeSwitcher } from "@/components/theme-switcher";
+import { HeaderShell } from "@/components/header-shell";
 import { getAdminSession } from "@/lib/auth/server";
 import { HttpError } from "@/lib/security/http";
 
@@ -30,16 +27,7 @@ async function AdminEditLink({ editHref }: { editHref: string }) {
 
 export function SiteHeader({ editHref = "/admin", guideId }: { editHref?: string; guideId?: string } = {}) {
   return (
-    <header className="border-b bg-background/95 supports-backdrop-filter:backdrop-blur">
-      <div className="mx-auto flex min-h-16 w-full max-w-7xl flex-nowrap items-center gap-2 px-4 py-2 sm:px-6">
-        <Link
-          href="/"
-          aria-label="หน้าแรก ไกด์เกนชินไม่ใช่เกมมือถือ"
-          className="mr-auto flex min-h-11 shrink-0 items-center gap-3 rounded-lg font-heading font-semibold focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
-        >
-          <Image src="/icon.png" alt="" width={36} height={36} className="size-9 object-contain" />
-          <span className="hidden lg:inline">ไกด์เกนชินไม่ใช่เกมมือถือ</span>
-        </Link>
+    <HeaderShell homeHref="/" homeLabel="หน้าแรก ไกด์เกนชินไม่ใช่เกมมือถือ">
       <PublicNavigation />
       <div className="hidden lg:block">
         <VisitorPresence guideId={guideId} />
@@ -47,10 +35,6 @@ export function SiteHeader({ editHref = "/admin", guideId }: { editHref?: string
       <Suspense fallback={null}>
         <AdminEditLink editHref={editHref} />
       </Suspense>
-        <ThemeSwitcher />
-        <NotificationBell />
-        <PublicAccountMenu />
-      </div>
-    </header>
+    </HeaderShell>
   );
 }