add features

frontend/src/services/notifications.ts

@@ -0,0 +1,31 @@
+import { api } from './api';
+import type { Notification } from '../types/notification.types';
+
+async function unwrap<T>(
+  promise: ReturnType<typeof api.get<{ success: boolean; data: T }>>
+): Promise<T> {
+  const response = await promise;
+  if (response.data?.data === undefined || response.data?.data === null) {
+    throw new Error('Invalid API response');
+  }
+  return response.data.data;
+}
+
+export const notificationsApi = {
+  async getNotifications(): Promise<Notification[]> {
+    return unwrap(api.get<{ success: boolean; data: Notification[] }>('/api/notifications'));
+  },
+
+  async getUnreadCount(): Promise<number> {
+    const data = await unwrap(api.get<{ success: boolean; data: { count: number } }>('/api/notifications/count'));
+    return data.count;
+  },
+
+  async markRead(id: string): Promise<void> {
+    await api.patch(`/api/notifications/${id}/read`);
+  },
+
+  async markAllRead(): Promise<void> {
+    await api.post('/api/notifications/mark-all-read');
+  },
+};