moved middleware to proxy according to new changes in Nextjs

web/src/proxy.ts

@@ -0,0 +1,36 @@
+import { NextRequest, NextResponse } from 'next/server';
+
+export function proxy(req: NextRequest) {
+    const mode = process.env.STORE_MODE;
+    const { pathname } = req.nextUrl;
+
+    // skip rewrites for api routes, admin routes, static files, and next internals
+    if (
+        pathname.startsWith('/api') ||
+        pathname.startsWith('/admin') ||
+        pathname.startsWith('/_next') ||
+        pathname.startsWith('/static') ||
+        pathname.includes('.')
+        // TODO: add robots.txt and sitemap.xml if needed here
+    ) {
+        return NextResponse.next();
+    }
+
+    // already prefixed with mode
+    if (pathname.startsWith(`/${mode}`)) {
+        return NextResponse.next();
+    }
+
+    // rewrite root and unprefixed paths to mode-specific route group
+    const url = req.nextUrl.clone();
+    url.pathname = `/${mode}${pathname === '/' ? '' : pathname}`;
+
+    return NextResponse.rewrite(url);
+}
+
+export const config = {
+    matcher: [
+        // match all paths except those starting with _next/static, _next/image, favicon.ico
+        '/((?!_next/static|_next/image|favicon.ico).*)',
+    ],
+};