89 lines
2.1 KiB
TypeScript
89 lines
2.1 KiB
TypeScript
/**
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* Use Case: GetMediaUseCase
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*
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* Handles the business logic for retrieving media information.
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*/
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import type { IMediaRepository } from '../../domain/repositories/IMediaRepository';
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import type { Logger } from '@core/shared/application';
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import type { IGetMediaPresenter } from '../presenters/IGetMediaPresenter';
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export interface GetMediaInput {
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mediaId: string;
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}
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export interface GetMediaResult {
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success: boolean;
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media?: {
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id: string;
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filename: string;
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originalName: string;
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mimeType: string;
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size: number;
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url: string;
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type: string;
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uploadedBy: string;
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uploadedAt: Date;
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metadata?: Record<string, any>;
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};
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errorMessage?: string;
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}
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export interface IGetMediaPresenter {
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present(result: GetMediaResult): void;
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}
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export class GetMediaUseCase {
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constructor(
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private readonly mediaRepo: IMediaRepository,
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private readonly logger: Logger,
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) {}
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async execute(
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input: GetMediaInput,
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presenter: IGetMediaPresenter,
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): Promise<void> {
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try {
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this.logger.info('[GetMediaUseCase] Getting media', {
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mediaId: input.mediaId,
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});
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const media = await this.mediaRepo.findById(input.mediaId);
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if (!media) {
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presenter.present({
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success: false,
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errorMessage: 'Media not found',
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});
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return;
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}
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presenter.present({
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success: true,
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media: {
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id: media.id,
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filename: media.filename,
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originalName: media.originalName,
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mimeType: media.mimeType,
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size: media.size,
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url: media.url.value,
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type: media.type,
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uploadedBy: media.uploadedBy,
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uploadedAt: media.uploadedAt,
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metadata: media.metadata,
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},
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});
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} catch (error) {
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this.logger.error('[GetMediaUseCase] Error getting media', {
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error: error instanceof Error ? error.message : 'Unknown error',
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mediaId: input.mediaId,
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});
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presenter.present({
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success: false,
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errorMessage: 'Internal error occurred while retrieving media',
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});
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}
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}
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} |