feat: improve structure and error handling

server/context.ts

@@ -1,7 +1,15 @@
+import { headers } from "next/headers"
+
+import { Lang } from "@/constants/languages"
+
 import { auth } from "@/auth"
 
 type CreateContextOptions = {
   auth: typeof auth
+  lang: Lang
+  pathname: string
+  uid?: string | null
+  url: string
 }
 
 /** Use this helper for:
@@ -11,6 +19,10 @@ type CreateContextOptions = {
 export function createContextInner(opts: CreateContextOptions) {
   return {
     auth: opts.auth,
+    lang: opts.lang,
+    pathname: opts.pathname,
+    uid: opts.uid,
+    url: opts.url,
   }
 }
 
@@ -19,8 +31,14 @@ export function createContextInner(opts: CreateContextOptions) {
  * @link https://trpc.io/docs/context
  **/
 export function createContext() {
+  const h = headers()
+
   return createContextInner({
     auth,
+    lang: h.get("x-lang") as Lang,
+    pathname: h.get("x-pathname")!,
+    uid: h.get("x-uid"),
+    url: h.get("x-url")!,
   })
 }