Merged in feature/warmup (pull request #1887)

* unified warmup function

Approved-by: Linus Flood

apps/scandic-web/services/dataCache/cacheOrGetOptions.ts

@@ -0,0 +1,27 @@
+/**
+ * Options to control cache behavior when retrieving or storing data.
+ *
+ * - "cache-first": Default behaviour, check if the needed data is available in the cache first. If the data is found, it is returned immediately. Otherwise, the data is fetched and then cached.
+ * - "fetch-then-cache": Always fetch the data first, and then update the cache with the freshly fetched data.
+ */
+export type CacheStrategy = "cache-first" | "fetch-then-cache"
+export type CacheOrGetOptions = {
+  cacheStrategy?: CacheStrategy
+}
+
+export function defaultCacheOrGetOptions(
+  opts: CacheOrGetOptions = {}
+): CacheOrGetOptions {
+  return {
+    cacheStrategy: "cache-first",
+    ...opts,
+  }
+}
+
+export function shouldGetFromCache(
+  opts: CacheOrGetOptions | undefined
+): boolean {
+  opts = defaultCacheOrGetOptions(opts)
+
+  return opts.cacheStrategy === "cache-first"
+}