import { apiClient } from './api-client';

// ─── Types ──────────────────────────────────────────────

export interface NotificationDto {
  id: string;
  type: string;
  title: string;
  body: string;
  link: string | null;
  isRead: boolean;
  createdAt: string;
}

export interface PaginatedNotifications {
  data: NotificationDto[];
  total: number;
  page: number;
  limit: number;
  totalPages: number;
}

export interface UnreadCountDto {
  count: number;
}

// ─── API Functions ──────────────────────────────────────

export const notificationsApi = {
  /** Get paginated notifications for the current user */
  list: (params: { page?: number; limit?: number } = {}) => {
    const query = new URLSearchParams();
    if (params.page) query.append('page', String(params.page));
    if (params.limit) query.append('limit', String(params.limit));
    const qs = query.toString();
    return apiClient.get<PaginatedNotifications>(
      `/notifications${qs ? `?${qs}` : ''}`,
    );
  },

  /** Get unread notification count */
  unreadCount: () =>
    apiClient.get<UnreadCountDto>('/notifications/unread-count'),

  /** Mark a single notification as read */
  markAsRead: (id: string) =>
    apiClient.patch<{ success: boolean }>(`/notifications/${id}/read`),

  /** Mark all notifications as read */
  markAllAsRead: () =>
    apiClient.patch<{ success: boolean }>('/notifications/read-all'),
};