# All files / modules/notifications notifications.service.ts

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     import { prisma } from '../../models';

    /**
     * 通知服务
     */
    export class NotificationsService {
      /**
       * 获取用户通知列表
       */
      async getNotifications(userId: string) {
        const uid = parseInt(userId);
        if (isNaN(uid)) return [];
        return await prisma.notification.findMany({
          where: { userId: uid },
          orderBy: { createdAt: 'desc' },
          take: 50,
        });
      }

      /**
       * 标记通知为已读
       */
      async markAsRead(id: string) {
        return await prisma.notification.update({
          where: { id },
          data: { isRead: true },
        });
      }
    }

    export const notificationsService = new NotificationsService();