u

src/proxy.ts

+import { NextRequest, NextResponse } from "next/server";
+
+import { LEGACY_ID_MAP, LEGACY_SLUG_MAP } from "@/lib/legacy-redirect-map";
+
+/**
+ * Redirect cac link cu cua site WordPress ve slug hien tai trong CMS moi:
+ *   - ?p=<id>  (link kieu ?p=11051)
+ *   - .../ten-bai.html  (permalink cu co duoi .html)
+ *   - /ten-bai  (slug cu bi doi)
+ * Map tu dong tao boi migration/scripts/build-redirect-map.mjs.
+ *
+ * Next.js 16: middleware.ts -> proxy.ts (cu), ham export 'proxy'.
+ */
+export default function proxy(req: NextRequest) {
+	// 1. ?p=<id>
+	const p = req.nextUrl.searchParams.get("p");
+	if (p) {
+		const slug = LEGACY_ID_MAP[p];
+		if (slug) {
+			return NextResponse.redirect(new URL("/" + slug, req.nextUrl.origin), 308);
+		}
+	}
+
+	// 2. duoi .html
+	const pathname = req.nextUrl.pathname;
+	if (pathname.toLowerCase().endsWith(".html")) {
+		const trimmed = pathname.slice(0, -5);
+		const last = trimmed.split("/").filter(Boolean).pop();
+		if (last) {
+			const target = LEGACY_SLUG_MAP[last] ?? last;
+			return NextResponse.redirect(new URL("/" + target + req.nextUrl.search, req.nextUrl.origin), 308);
+		}
+	}
+
+	// 3. slug cu bi doi
+	const clean = pathname.replace(/\/+$/, "").replace(/^\//, "");
+	const mapped = LEGACY_SLUG_MAP[clean];
+	if (mapped) {
+		return NextResponse.redirect(new URL("/" + mapped + req.nextUrl.search, req.nextUrl.origin), 308);
+	}
+
+	return NextResponse.next();
+}
+
+export const config = {
+	matcher: [
+		"/((?!api|admin|uploads|_next/static|_next/image|images/|public/|favicon.ico|thumbnail.png|robots.txt|sitemap.xml|ads.txt).*)",
+	],
+};