251123:0200 T6.1 to DO

backend/src/modules/notification/notification-cleanup.service.ts

@@ -0,0 +1,39 @@
+import { Injectable, Logger } from '@nestjs/common';
+import { Cron, CronExpression } from '@nestjs/schedule';
+import { InjectRepository } from '@nestjs/typeorm';
+import { Repository, LessThan } from 'typeorm';
+import { Notification } from './entities/notification.entity';
+
+@Injectable()
+export class NotificationCleanupService {
+  private readonly logger = new Logger(NotificationCleanupService.name);
+
+  constructor(
+    @InjectRepository(Notification)
+    private notificationRepo: Repository<Notification>,
+  ) {}
+
+  /**
+   * ลบแจ้งเตือนที่ "อ่านแล้ว" และเก่ากว่า 30 วัน
+   * รันทุกวันเวลาเที่ยงคืน
+   */
+  @Cron(CronExpression.EVERY_DAY_AT_MIDNIGHT)
+  async handleCleanup() {
+    this.logger.log('Running notification cleanup...');
+
+    const daysAgo = 30;
+    const dateThreshold = new Date();
+    dateThreshold.setDate(dateThreshold.getDate() - daysAgo);
+
+    try {
+      const result = await this.notificationRepo.delete({
+        isRead: true,
+        createdAt: LessThan(dateThreshold),
+      });
+
+      this.logger.log(`Deleted ${result.affected} old read notifications.`);
+    } catch (error) {
+      this.logger.error('Failed to cleanup notifications', error);
+    }
+  }
+}