feat: add middleware setup (#36)

Author: IgboPharaoh

.gitignore

@@ -18,6 +18,7 @@
 /public/categories.json
 /public/types-data.json
 /public/tag-data.json
+/public/aliases.json
 
 # misc
 .DS_Store

contentlayer.config.ts

@@ -46,6 +46,22 @@ function createTagCount(allTranscripts: ContentTranscriptType[]): { tagCounts: R
   return { tagCounts };
 }
 
+const getTranscriptAliases = (allTranscripts: ContentTranscriptType[]) => {
+  const aliases: Record<string, string> = {};
+
+  for (const transcript of allTranscripts) {
+    if (!transcript.aliases) continue;
+
+    if (transcript.aliases) {
+      transcript.aliases.forEach((alias) => {
+        aliases[alias] = transcript.url;
+      });
+    }
+  }
+
+  writeFileSync("./public/aliases.json", JSON.stringify(aliases));
+};
+
 const getCategories = () => {
   const filePath = path.join(process.cwd(), "public", "categories.json");
   const fileContents = fs.readFileSync(filePath, "utf8");
@@ -205,5 +221,6 @@ export default makeSource({
     const { allDocuments } = await importData();
     organizeTags(allDocuments);
     createTypesCount(allDocuments);
+    getTranscriptAliases(allDocuments);
   },
 });

src/middleware.ts

@@ -0,0 +1,23 @@
+import { NextResponse } from "next/server";
+import type { NextRequest } from "next/server";
+import aliasesJson from "../public/aliases.json";
+
+const aliases = aliasesJson as { [key: string]: string };
+
+export function middleware(req: NextRequest) {
+  const { pathname } = req.nextUrl;
+  const alias = aliases[pathname];
+
+  if (alias) {
+    return NextResponse.redirect(new URL(alias, req.url));
+  }
+  return NextResponse.next();
+}
+
+export const config = {
+  matcher: [
+    "/:path/:subpath*", // Matches any path with at least one subdirectory
+    "/:path*/:file((?!.*\\.).*)", // Exclude paths with file extensions
+    "/((?!api|_next/static|_next/image|favicon.ico|sitemap.xml|robots.txt|plugins).*)", // Exclude specific Next.js paths and API routes
+  ],
+};