feat: add logging and notification creation in NotificationService

- Implement logging for notification sending process.
- Create a new message entry in the database when a notification is sent, specifying recipient, content, type, and context. This enhances the notification handling capabilities of the service.

src/Notification/notification.service.ts

@@ -2,7 +2,8 @@ import { Injectable } from '@nestjs/common'
 import { PubSubEvent } from 'src/common/pubsub/pubsub-event'
 import { PrismaService } from 'src/Prisma/prisma.service'
 import { PubSubService } from 'src/PubSub/pubsub.service'
-
+import { Logger } from '@nestjs/common'
+import { MessageContextType, MessageType } from '@prisma/client'
 @Injectable()
 export class NotificationService {
   constructor(
@@ -11,6 +12,15 @@ export class NotificationService {
   ) {}
 
   async sendNotification(userId: string, title: string, content: string) {
+    Logger.log(`Send notification to ${userId}`, 'NotificationService')
+    await this.prisma.message.create({
+      data: {
+        recipientId: userId,
+        content,
+        type: MessageType.TEXT,
+        context: MessageContextType.NOTIFICATION,
+      },
+    })
     await this.pubSub.publish(`${PubSubEvent.NOTIFICATION}.${userId}`, {
       title,
       content,