47 lines
1.7 KiB
TypeScript
47 lines
1.7 KiB
TypeScript
/**
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* Application Use Case: GetUnreadNotificationsUseCase
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*
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* Retrieves unread notifications for a recipient.
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*/
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import type { AsyncUseCase } from '@core/shared/application';
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import type { Logger } from '@core/shared/application';
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import type { Notification } from '../../domain/entities/Notification';
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import type { INotificationRepository } from '../../domain/repositories/INotificationRepository';
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export interface UnreadNotificationsResult {
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notifications: Notification[];
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totalCount: number;
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}
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export class GetUnreadNotificationsUseCase implements AsyncUseCase<string, UnreadNotificationsResult> {
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constructor(
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private readonly notificationRepository: INotificationRepository,
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private readonly logger: Logger,
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) {}
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async execute(recipientId: string): Promise<UnreadNotificationsResult> {
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this.logger.debug(`Attempting to retrieve unread notifications for recipient ID: ${recipientId}`);
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try {
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const notifications = await this.notificationRepository.findUnreadByRecipientId(recipientId);
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this.logger.info(`Successfully retrieved ${notifications.length} unread notifications for recipient ID: ${recipientId}`);
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if (notifications.length === 0) {
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this.logger.warn(`No unread notifications found for recipient ID: ${recipientId}`);
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}
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return {
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notifications,
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totalCount: notifications.length,
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};
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} catch (error) {
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this.logger.error(`Failed to retrieve unread notifications for recipient ID: ${recipientId}`, error instanceof Error ? error : new Error(String(error)));
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throw error;
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}
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}
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}
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/**
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* Additional notification query/use case types (e.g., listing or counting notifications)
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* can be added here in the future as needed.
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*/ |