Før aleggsbilde-interface

frontend/src/app/golfbaner/[slug]/opengraph-image.tsx

@@ -1,5 +1,6 @@
 import { ImageResponse } from "next/og";
 import { API_URL } from "@/config/constants";
+import { resolveFacilityAlias } from "@/app/facilityAliases";
 import { buildAbsoluteUrl } from "@/app/seo";
 
 export const size = {
@@ -13,14 +14,44 @@ type OpenGraphImageProps = {
   params: Promise<{ slug: string }>;
 };
 
+type OpenGraphFacility = {
+  name: string;
+  city?: string | null;
+  county?: string | null;
+  image_url?: string | null;
+};
+
 async function getFacility(slug: string) {
   const res = await fetch(`${API_URL}/facilities/${slug}`, { cache: "no-store" });
-  return res.json();
+  if (!res.ok) {
+    return null;
+  }
+
+  const facility = (await res.json()) as Partial<OpenGraphFacility> | null;
+  if (!facility?.name) {
+    return null;
+  }
+
+  return facility as OpenGraphFacility;
+}
+
+async function getFacilityForSlug(slug: string) {
+  const facility = await getFacility(slug);
+  if (facility) {
+    return facility;
+  }
+
+  const canonicalSlug = await resolveFacilityAlias(slug);
+  if (!canonicalSlug || canonicalSlug === slug) {
+    return null;
+  }
+
+  return getFacility(canonicalSlug);
 }
 
 export default async function OpenGraphImage({ params }: OpenGraphImageProps) {
   const { slug } = await params;
-  const facility = await getFacility(slug);
+  const facility = await getFacilityForSlug(slug);
 
   const title = facility?.name || "TeeOff";
   const location = [facility?.city, facility?.county].filter(Boolean).join(" · ") || "Norske golfbaner";

frontend/src/app/golfbaner/[slug]/page.tsx

@@ -1,5 +1,8 @@
 import type { Metadata } from "next";
+import { notFound, permanentRedirect } from "next/navigation";
 import { API_URL } from "@/config/constants";
+import { resolveFacilityAlias } from "@/app/facilityAliases";
+import type { FacilityRecord } from "@/app/facilityData";
 import {
   createBreadcrumbJsonLd,
   createFacilityJsonLd,
@@ -13,17 +16,47 @@ type GolfCoursePageProps = {
   params: Promise<{ slug: string }>;
 };
 
+type FacilityPageData = FacilityRecord & {
+  address?: string | null;
+  [key: string]: unknown;
+};
+
 async function getFacility(slug: string) {
   const res = await fetch(`${API_URL}/facilities/${slug}`, { cache: "no-store" });
-  return res.json();
+  if (!res.ok) {
+    return null;
+  }
+
+  const facility = (await res.json()) as Partial<FacilityPageData> | null;
+  if (typeof facility?.id !== "number" || !facility?.name || !facility?.slug) {
+    return null;
+  }
+
+  return facility as FacilityPageData;
+}
+
+async function getCanonicalSlug(slug: string) {
+  const canonicalSlug = await resolveFacilityAlias(slug);
+  if (!canonicalSlug || canonicalSlug === slug) {
+    return null;
+  }
+
+  return canonicalSlug;
 }
 
 export async function generateMetadata({ params }: GolfCoursePageProps): Promise<Metadata> {
   const { slug } = await params;
 
   try {
-    const facility = await getFacility(slug);
+    let facility = await getFacility(slug);
-    if (!facility || facility.error) {
+    if (!facility) {
+      const canonicalSlug = await getCanonicalSlug(slug);
+      if (canonicalSlug) {
+        facility = await getFacility(canonicalSlug);
+      }
+    }
+
+    if (!facility) {
       return createPageMetadata({
         title: "Golfbane ikke funnet",
         description: "Golfbanen du prøvde å åpne finnes ikke på TeeOff.",
@@ -37,8 +70,8 @@ export async function generateMetadata({ params }: GolfCoursePageProps): Promise
     return createPageMetadata({
       title,
       description: trimDescription(facility.description) || fallbackDescription,
-      path: `/golfbaner/${slug}`,
+      path: `/golfbaner/${facility.slug}`,
-      image: `/golfbaner/${slug}/opengraph-image`,
+      image: `/golfbaner/${facility.slug}/opengraph-image`,
     });
   } catch {
     return createPageMetadata({
@@ -53,8 +86,13 @@ export default async function GolfCoursePage({ params }: GolfCoursePageProps) {
   const { slug } = await params;
   const facility = await getFacility(slug);
 
-  if (!facility || facility.error) {
+  if (!facility) {
-    return <div className="p-20 text-center font-bold text-2xl">Fant ikke golfbanen...</div>;
+    const canonicalSlug = await getCanonicalSlug(slug);
+    if (canonicalSlug) {
+      permanentRedirect(`/golfbaner/${canonicalSlug}`);
+    }
+
+    notFound();
   }
 
   const facilityJsonLd = createFacilityJsonLd(facility);