cache queries and revalidate with incremental static regeneration

web/src/lib/openinghours.ts

@@ -8,6 +8,7 @@ import {
 } from "date-fns";
 
 import { getClient } from "@/app/client";
+import { cachedUntilOsloMidnight } from "@/lib/revalidation";
 import { graphql, unmaskFragment } from "@/gql";
 import type {
   OpeningHoursRangeBlockFragment as OpeningHoursRangeBlock,
@@ -50,7 +51,13 @@ const openingHoursQuery = graphql(`
 `);
 
 export async function fetchOpeningHoursSets() {
-  const { data, error } = await getClient().query(openingHoursQuery, {});
+  const { data, error } = await getClient().query(
+    openingHoursQuery,
+    {},
+    // The footer renders today's hours on every page, so this TTL doubles as
+    // the sitewide midnight refresh for futureEvents rollover
+    cachedUntilOsloMidnight()
+  );
   const sets = (data?.openingHoursSets ?? []) as OpeningHoursSet[];
   return sets;
 }