77 lines
2.5 KiB
TypeScript
77 lines
2.5 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 { Logger, UseCaseOutputPort } from '@core/shared/application';
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import { Result } from '@core/shared/application/Result';
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import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';
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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 type GetUnreadNotificationsInput = {
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recipientId: string;
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};
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export interface GetUnreadNotificationsResult {
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notifications: Notification[];
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totalCount: number;
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}
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export type GetUnreadNotificationsErrorCode = 'REPOSITORY_ERROR';
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export class GetUnreadNotificationsUseCase {
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constructor(
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private readonly notificationRepository: INotificationRepository,
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private readonly output: UseCaseOutputPort<GetUnreadNotificationsResult>,
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private readonly logger: Logger,
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) {}
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async execute(
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input: GetUnreadNotificationsInput,
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): Promise<Result<void, ApplicationErrorCode<GetUnreadNotificationsErrorCode, { message: string }>>> {
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const { recipientId } = input;
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this.logger.debug(
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`Attempting to retrieve unread notifications for recipient ID: ${recipientId}`,
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);
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try {
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const notifications = await this.notificationRepository.findUnreadByRecipientId(
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recipientId,
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);
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this.logger.info(
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`Successfully retrieved ${notifications.length} unread notifications for recipient ID: ${recipientId}`,
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);
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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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this.output.present({
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notifications,
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totalCount: notifications.length,
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});
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return Result.ok<void, ApplicationErrorCode<GetUnreadNotificationsErrorCode, { message: string }>>(
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undefined,
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);
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} catch (error) {
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const err = error instanceof Error ? error : new Error(String(error));
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this.logger.error(
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`Failed to retrieve unread notifications for recipient ID: ${recipientId}`,
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err,
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);
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return Result.err<void, ApplicationErrorCode<GetUnreadNotificationsErrorCode, { message: string }>>({
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code: 'REPOSITORY_ERROR',
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details: { message: err.message },
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});
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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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*/ |