fix(auth): clean up

app/[lang]/(live)/(public)/login/route.ts

@@ -1,11 +1,9 @@
-import { createActionURL } from "@auth/core"
-import { headers as nextHeaders } from "next/headers"
 import { NextRequest, NextResponse } from "next/server"
 import { AuthError } from "next-auth"
 
 import { Lang } from "@/constants/languages"
 import { env } from "@/env/server"
-import { badRequest } from "@/server/errors/next"
+import { badRequest, internalServerError } from "@/server/errors/next"
 
 import { signIn } from "@/auth"
 
@@ -26,17 +24,14 @@ export async function GET(
       request.cookies.get("redirectTo")?.value || // Cookie gets set by authRequired middleware
       request.headers.get("x-redirect-to") ||
       request.nextUrl.searchParams.get("redirectTo") ||
-      request.headers.get("Referer") ||
       ""
 
     // If above fails, always redirect to startpage
     if (!redirectTo) {
-      const proto = request.headers.get("x-forwarded-proto") ?? "http"
-      const host =
-        request.headers.get("x-forwarded-host") ??
-        request.headers.get("host") ??
-        env.URL
-      redirectTo = `${proto}://${host}/`
+      if (!env.PUBLIC_URL) {
+        throw internalServerError("No value for env.PUBLIC_URL")
+      }
+      redirectTo = env.PUBLIC_URL
       console.log({ login_fallback: redirectTo })
     }
 
@@ -87,20 +82,9 @@ export async function GET(
      * automatically redirecting to it inside of `signIn`.
      * https://github.com/nextauthjs/next-auth/blob/3c035ec/packages/next-auth/src/lib/actions.ts#L76
      */
-    console.log({ login_AUTH_URL: process.env.AUTH_URL })
     console.log({ login_NEXTAUTH_URL: process.env.NEXTAUTH_URL })
     console.log({ login_env: process.env })
 
-    const headers = new Headers(nextHeaders())
-    const signInURL = createActionURL(
-      "signin",
-      // @ts-expect-error `x-forwarded-proto` is not nullable, next.js sets it by default
-      headers.get("x-forwarded-proto"),
-      headers,
-      process.env
-    )
-    console.log({ login_signInURL: signInURL })
-
     console.log({ login_redirectTo: redirectTo })
     const redirectUrl = await signIn(
       "curity",