import { beforeEach, describe, expect, it, vi } from 'vitest';
import type { ICommentRepository } from '../../domain/repositories/comment.repository.interface.js';
import type { IIssueRepository } from '../../../issue/domain/repositories/issue.repository.interface.js';
import { FileOwnerRegistry } from '../../../file/application/services/file-owner.registry.js';
import { CommentAttachmentFileOwnerService } from './comment-attachment-file-owner.service.js';
import { buildIssue, mockCommentRepository, mockIssueRepository } from '../use-cases/test-helpers.js';

describe('CommentAttachmentFileOwnerService', () => {
  let commentRepository: ICommentRepository;
  let issueRepository: IIssueRepository;
  let registry: FileOwnerRegistry;

  beforeEach(() => {
    commentRepository = mockCommentRepository();
    issueRepository = mockIssueRepository();
    registry = new FileOwnerRegistry();
    new CommentAttachmentFileOwnerService(commentRepository, issueRepository, registry).onModuleInit();
  });

  it('registers itself, so GC keeps files attached to comments', async () => {
    vi.mocked(commentRepository.findReferencedFileIds).mockResolvedValue(['a']);

    expect(await registry.findReferenced(['a', 'b'])).toEqual(new Set(['a']));
  });

  it('makes a file visible to users who see the issue of its comment', async () => {
    vi.mocked(commentRepository.findIssueIdsByAttachedFile).mockResolvedValue([1]);
    vi.mocked(issueRepository.findById).mockResolvedValue(buildIssue());

    expect(await registry.isVisibleThroughAnyOwner('file-1', 'user-2')).toBe(true);
    expect(issueRepository.findById).toHaveBeenCalledWith(1, 'user-2');
  });

  it('hides a file when the issue is not visible', async () => {
    vi.mocked(commentRepository.findIssueIdsByAttachedFile).mockResolvedValue([1]);
    vi.mocked(issueRepository.findById).mockResolvedValue(null);

    expect(await registry.isVisibleThroughAnyOwner('file-1', 'user-3')).toBe(false);
  });
});