feat: settings

utils/atoms/settings.ts

@@ -0,0 +1,54 @@
+import { atom, useAtom } from "jotai";
+import AsyncStorage from "@react-native-async-storage/async-storage";
+import { useEffect } from "react";
+
+type Settings = {
+  autoRotate?: boolean;
+  forceLandscapeInVideoPlayer?: boolean;
+};
+
+/**
+ *
+ * The settings atom is a Jotai atom that stores the user's settings.
+ * It is initialized with a default value of null, which indicates that the settings have not been loaded yet.
+ * The settings are loaded from AsyncStorage when the atom is read for the first time.
+ *
+ */
+
+// Utility function to load settings from AsyncStorage
+const loadSettings = async (): Promise<Settings> => {
+  const jsonValue = await AsyncStorage.getItem("settings");
+  return jsonValue != null
+    ? JSON.parse(jsonValue)
+    : { theme: "light", notificationsEnabled: true, language: "en" };
+};
+
+// Utility function to save settings to AsyncStorage
+const saveSettings = async (settings: Settings) => {
+  const jsonValue = JSON.stringify(settings);
+  await AsyncStorage.setItem("settings", jsonValue);
+};
+
+// Create an atom to store the settings in memory
+const settingsAtom = atom<Settings | null>(null);
+
+// A hook to manage settings, loading them on initial mount and providing a way to update them
+export const useSettings = () => {
+  const [settings, setSettings] = useAtom(settingsAtom);
+
+  useEffect(() => {
+    if (settings === null) {
+      loadSettings().then(setSettings);
+    }
+  }, [settings, setSettings]);
+
+  const updateSettings = async (update: Partial<Settings>) => {
+    if (settings) {
+      const newSettings = { ...settings, ...update };
+      setSettings(newSettings);
+      await saveSettings(newSettings);
+    }
+  };
+
+  return [settings, updateSettings] as const;
+};