feat: use swr

src/core/blitzkrieg/getArchivedLatestSeasonNumberAPI.ts

@@ -1,18 +0,0 @@
-let cachedLatestArchivedSeasonNumber: number | null = null;
-
-/**
- * The first every season that Blitzkrieg tracked :)
- */
-export const FIRST_ARCHIVED_RATINGS_SEASON = 49;
-
-export async function getArchivedLatestSeasonNumberAPI() {
-  if (cachedLatestArchivedSeasonNumber) {
-    return cachedLatestArchivedSeasonNumber;
-  }
-
-  const response = await fetch(`/api/ratings/latest-archived-season-number`);
-  const number = parseInt(await response.text());
-  cachedLatestArchivedSeasonNumber = number;
-
-  return cachedLatestArchivedSeasonNumber;
-}

src/core/blitzkrieg/numberFetcher.ts

@@ -0,0 +1,6 @@
+import { Fetcher } from 'swr';
+
+export const numberFetcher: Fetcher<number, string> = (url) =>
+  fetch(url)
+    .then((res) => res.text())
+    .then(parseInt);