Extract automated update check into hook

src/util/useUpdateChecker.tsx

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { useEffect } from 'react';
+import { defaultPromiseErrorHandler } from '@/util/defaultPromiseErrorHandler.ts';
+import { useLocalStorage } from '@/util/useStorage.tsx';
+
+const UPDATE_CHECK_INTERVAL = 1000 * 60 * 60 * 24; // 1 day
+
+export const useUpdateChecker = (
+    storageKey: string,
+    checkForUpdate: () => Promise<unknown>,
+    interval: number = UPDATE_CHECK_INTERVAL,
+): void => {
+    const [lastUpdateCheck, setLastUpdateCheck] = useLocalStorage(`UpdateChecker::${storageKey}`, 0);
+
+    useEffect(() => {
+        const remainingTimeTillNextUpdateCheck = (interval - (Date.now() - lastUpdateCheck)) % interval;
+
+        let timeout: NodeJS.Timeout | undefined;
+        const scheduleUpdateCheck = (timeoutMS: number) => {
+            timeout = setTimeout(() => {
+                checkForUpdate().catch(defaultPromiseErrorHandler(`UpdateChecker(${storageKey})::checkForUpdate`));
+                setLastUpdateCheck(Date.now());
+                scheduleUpdateCheck(interval);
+            }, timeoutMS);
+        };
+
+        scheduleUpdateCheck(remainingTimeTillNextUpdateCheck);
+
+        return () => clearTimeout(timeout);
+    }, [storageKey, checkForUpdate, interval]);
+};