Enhance domain handling by adding "sites" to the reserved subdomains …

app/services/site/domain-request-service.test.ts

@@ -4,7 +4,7 @@ import * as domainRequestService from "./domain-request-service";
 
 // Mock the domain import
 vi.mock("@/lib/domain", () => ({
-  RESERVED_SUBDOMAINS: ["app", "www", "blog", "api"]
+  RESERVED_SUBDOMAINS: ["app", "www", "blog", "api", "sites"]
 }));
 
 describe("DomainRequestService", () => {

lib/domain.ts

@@ -26,7 +26,8 @@ export const RESERVED_SUBDOMAINS = [
   "settings",
   "legal",
   "admin",
-  "studio"
+  "studio",
+  "sites"
 ];
 
 /**

middleware.ts

@@ -3,6 +3,7 @@ import { NextResponse } from "next/server";
 import { isHomePagePath, isPublicPath } from "./app/services/public-path-service";
 import {
   getGhUsernameFromRequest,
+  getHostnameFromRequest,
   getReservedSubdomainFromRequest,
   isVercelPreview
 } from "./app/services/site/domain-request-service";
@@ -31,12 +32,35 @@ export const config = {
 export default withAuth(
   async function middleware(req: NextRequestWithAuth) {
     const path = req.nextUrl.pathname;
+    const host = (await getHostnameFromRequest(req))?.toLowerCase();
     const sessionUser = req.nextauth.token?.user as SessionUser | undefined;
 
     // Helper constants for domain names, makes it easy to change later
     const isDevelopment = process.env.NODE_ENV === "development";
     const APP_HOST = isDevelopment ? "app.market.local:3000" : "app.market.dev";
     const HOMEPAGE_HOST = isDevelopment ? "studio.market.local:3000" : "studio.market.dev";
+    const SITES_HOST = isDevelopment ? "sites.market.local:3000" : "sites.market.dev";
+
+    if (host === SITES_HOST) {
+      if (path.startsWith("/api")) {
+        return NextResponse.next();
+      }
+
+      const segments = path.split("/").filter(Boolean);
+      const [handle, ...rest] = segments;
+
+      if (!handle) {
+        const redirectUrl = new URL(req.url);
+        redirectUrl.host = HOMEPAGE_HOST;
+        redirectUrl.pathname = "/";
+        return NextResponse.redirect(redirectUrl);
+      }
+
+      const remainingPath = rest.length > 0 ? `/${rest.join("/")}` : "";
+      const rewritePath = `/maintainer-site/${handle}${remainingPath}${req.nextUrl.search}`;
+
+      return NextResponse.rewrite(new URL(rewritePath, req.url));
+    }
 
     // --- Decision 1: Is this the main "app" subdomain? ---
     const reservedSubdomain = await getReservedSubdomainFromRequest(req);
@@ -135,6 +159,13 @@ export default withAuth(
           return true;
         }
 
+        const currentHost = (await getHostnameFromRequest(req))?.toLowerCase();
+        const isDevelopment = process.env.NODE_ENV === "development";
+        const sitesHost = isDevelopment ? "sites.market.local:3000" : "sites.market.dev";
+        if (currentHost === sitesHost) {
+          return true;
+        }
+
         // Check if the path is in the public paths list
         if (await isPublicPath(req.nextUrl.pathname)) {
           return true;