wip

packages/notifications/application/use-cases/MarkNotificationReadUseCase.ts

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+/**
+ * Application Use Case: MarkNotificationReadUseCase
+ * 
+ * Marks a notification as read.
+ */
+
+import type { INotificationRepository } from '../../domain/repositories/INotificationRepository';
+
+export interface MarkNotificationReadCommand {
+  notificationId: string;
+  recipientId: string; // For validation
+}
+
+export class MarkNotificationReadUseCase {
+  constructor(
+    private readonly notificationRepository: INotificationRepository,
+  ) {}
+
+  async execute(command: MarkNotificationReadCommand): Promise<void> {
+    const notification = await this.notificationRepository.findById(command.notificationId);
+    
+    if (!notification) {
+      throw new Error('Notification not found');
+    }
+
+    if (notification.recipientId !== command.recipientId) {
+      throw new Error('Cannot mark another user\'s notification as read');
+    }
+
+    if (!notification.isUnread()) {
+      return; // Already read, nothing to do
+    }
+
+    const updatedNotification = notification.markAsRead();
+    await this.notificationRepository.update(updatedNotification);
+  }
+}
+
+/**
+ * Application Use Case: MarkAllNotificationsReadUseCase
+ * 
+ * Marks all notifications as read for a recipient.
+ */
+export class MarkAllNotificationsReadUseCase {
+  constructor(
+    private readonly notificationRepository: INotificationRepository,
+  ) {}
+
+  async execute(recipientId: string): Promise<void> {
+    await this.notificationRepository.markAllAsReadByRecipientId(recipientId);
+  }
+}
+
+/**
+ * Application Use Case: DismissNotificationUseCase
+ * 
+ * Dismisses a notification.
+ */
+export interface DismissNotificationCommand {
+  notificationId: string;
+  recipientId: string;
+}
+
+export class DismissNotificationUseCase {
+  constructor(
+    private readonly notificationRepository: INotificationRepository,
+  ) {}
+
+  async execute(command: DismissNotificationCommand): Promise<void> {
+    const notification = await this.notificationRepository.findById(command.notificationId);
+    
+    if (!notification) {
+      throw new Error('Notification not found');
+    }
+
+    if (notification.recipientId !== command.recipientId) {
+      throw new Error('Cannot dismiss another user\'s notification');
+    }
+
+    if (notification.isDismissed()) {
+      return; // Already dismissed
+    }
+
+    const updatedNotification = notification.dismiss();
+    await this.notificationRepository.update(updatedNotification);
+  }
+}