feat(www): locale specific urls (#12508)

packages/console/app/src/middleware.ts

@@ -1,5 +1,16 @@
 import { createMiddleware } from "@solidjs/start/middleware"
+import { LOCALE_HEADER, cookie, fromPathname, strip } from "~/lib/language"
 
 export default createMiddleware({
-  onBeforeResponse() {},
+  onRequest(event) {
+    const url = new URL(event.request.url)
+    const locale = fromPathname(url.pathname)
+    if (!locale) return
+
+    event.request.headers.set(LOCALE_HEADER, locale)
+    event.response.headers.append("set-cookie", cookie(locale))
+
+    url.pathname = strip(url.pathname)
+    event.request = new Request(url, event.request)
+  },
 })