push notification implemented

need testing

backend/src/modules/live-blog.service.ts

@@ -5,6 +5,7 @@ import {
   OnModuleInit,
   Inject,
   forwardRef,
+  Optional,
 } from '@nestjs/common';
 import { InjectRepository } from '@nestjs/typeorm';
 import { Repository, In } from 'typeorm';
@@ -19,6 +20,7 @@ import {
   CreateLiveBlogUpdateDto,
   UpdateLiveBlogUpdateDto,
 } from './articles.dto';
+import { PushService } from './push/push.service';
 
 interface SseClient {
   id: string;
@@ -55,6 +57,9 @@ export class LiveBlogService implements OnModuleInit {
     private readonly eventEmitter: EventEmitter2,
     @Inject(forwardRef(() => StrapiService))
     private readonly strapiService: StrapiService,
+    @Optional()
+    @Inject(forwardRef(() => PushService))
+    private readonly pushService?: PushService,
   ) {}
 
   onModuleInit() {
@@ -364,6 +369,22 @@ export class LiveBlogService implements OnModuleInit {
       update: savedUpdate,
     });
 
+    // Send push notification for live blog updates (only for live blogs)
+    if (liveBlogEntity.status === LiveBlogStatus.LIVE && this.pushService) {
+      try {
+        await this.pushService.notifyLiveBlogUpdate(
+          liveBlogEntity.title,
+          liveBlogEntity.slug,
+          savedUpdate.content,
+        );
+        this.logger.debug(
+          `Push notification sent for live blog update: ${liveBlogEntity.title}`,
+        );
+      } catch (error) {
+        this.logger.error('Failed to send push notification:', error);
+      }
+    }
+
     return savedUpdate;
   }