feat: creating package module

Author: Stringsaeed

src/index.tsx renamed to src/NotificationsUtilsModule.ts

@@ -6,7 +6,7 @@ const LINKING_ERROR =
   '- You rebuilt the app after installing the package\n' +
   '- You are not using Expo Go\n';
 
-const NotificationsUtils = NativeModules.NotificationsUtils
+const NotificationsUtilsModule = NativeModules.NotificationsUtils
   ? NativeModules.NotificationsUtils
   : new Proxy(
       {},
@@ -17,6 +17,4 @@ const NotificationsUtils = NativeModules.NotificationsUtils
       }
     );
 
-export function multiply(a: number, b: number): Promise<number> {
-  return NotificationsUtils.multiply(a, b);
-}
+export default NotificationsUtilsModule;

src/index.ts

@@ -0,0 +1,47 @@
+import { Platform } from 'react-native';
+import NotificationsUtilsModule from './NotificationsUtilsModule';
+
+type OpenSettingsOptions = {
+  channelId?: string;
+};
+
+interface INotificationsUtils {
+  /**
+   * API used to open the Platform specific System settings for the application.
+   *
+   * If the API version is >= 26:
+   * - With no `channelId`, the notification settings screen is displayed.
+   * - With a `channelId`, the notification settings screen for the specific channel is displayed.
+   *
+   * If the API version is < 26, the application settings screen is displayed. The `channelId`
+   * is ignored.
+   *
+   * If an invalid `channelId` is provided (e.g. does not exist), the settings screen will redirect
+   * back to your application.
+   *
+   * On iOS, this is a no-op & instantly resolves.
+   *
+   * @platform android
+   * @param channelId The ID of the channel which will be opened. Can be ignored/omitted to display the
+   * overall notification settings.
+   */
+  openSettings(options?: OpenSettingsOptions): Promise<void>;
+}
+
+const NotificationsUtils: INotificationsUtils = {
+  openSettings: (options) => {
+    if (Platform.OS === 'android') {
+      if (typeof options?.channelId !== 'string') {
+        throw new Error(
+          `NotificationsUtils.openSettings: Expected 'channelId' to be a string, got ${typeof options?.channelId}.`
+        );
+      }
+      const { channelId } = options;
+
+      return NotificationsUtilsModule.openAppNotificationsSettings(channelId);
+    }
+    return NotificationsUtilsModule.openAppNotificationsSettings();
+  },
+};
+
+export default NotificationsUtils;