import { Query } from '@nestjs/cqrs';
import { AttachmentReadModel } from '@task-stream/api/tracker/domain';
import type { Readable } from 'node:stream';

export interface AttachmentDownload {
  attachment: AttachmentReadModel;
  content: Readable;
}

/** A ticket's file, for whoever can read the ticket. */
export class GetAttachmentQuery extends Query<AttachmentDownload> {
  constructor(
    /** Null: anonymous (public projects only). */
    public readonly viewerId: string | null,
    public readonly issueId: string,
    public readonly attachmentId: string,
  ) {
    super();
  }
}