notification

src/modules/notifications/services/notification-queue.service.ts

@@ -0,0 +1,63 @@
+import { Injectable, Logger } from '@nestjs/common';
+import { InjectQueue } from '@nestjs/bullmq';
+import { Queue } from 'bullmq';
+import { NotificationQueueJob } from '../interfaces/notification-queue.interface';
+import { NotificationChannel } from '../entities/notification.entity';
+
+@Injectable()
+export class NotificationQueueService {
+  private readonly logger = new Logger(NotificationQueueService.name);
+
+  constructor(@InjectQueue('notification-queue') private readonly notificationQueue: Queue) {}
+
+  async addNotification(job: NotificationQueueJob): Promise<void> {
+    try {
+      const jobId = job.idempotencyKey || `${job.restaurantId}-${job.notificationType}-${job.channel}-${Date.now()}`;
+
+      await this.notificationQueue.add('send-notification', job, {
+        jobId,
+        attempts: 3,
+        backoff: {
+          type: 'exponential',
+          delay: 2000,
+        },
+        removeOnComplete: {
+          age: 24 * 3600, // Keep completed jobs for 24 hours
+          count: 1000,
+        },
+        removeOnFail: {
+          age: 7 * 24 * 3600, // Keep failed jobs for 7 days
+        },
+      });
+
+      this.logger.log(`Notification job added to queue: ${jobId}`);
+    } catch (error) {
+      this.logger.error(`Failed to add notification to queue:`, error);
+      throw error;
+    }
+  }
+
+  async addBulkNotifications(jobs: NotificationQueueJob[]): Promise<void> {
+    try {
+      const queueJobs = jobs.map(job => ({
+        name: 'send-notification',
+        data: job,
+        opts: {
+          jobId: job.idempotencyKey || `${job.restaurantId}-${job.notificationType}-${job.channel}-${Date.now()}`,
+          attempts: 3,
+          backoff: {
+            type: 'exponential',
+            delay: 2000,
+          },
+        },
+      }));
+
+      await this.notificationQueue.addBulk(queueJobs);
+      this.logger.log(`Added ${jobs.length} notification jobs to queue`);
+    } catch (error) {
+      this.logger.error(`Failed to add bulk notifications to queue:`, error);
+      throw error;
+    }
+  }
+}
+