import { describe, expect, it } from 'vitest';
import { Comment } from '../../domain/entities/comment.entity.js';
import { CommentApplicationMapper } from './comment-application.mapper.js';
import { UserDto } from '../../../user/application/dto/user.dto.js';

const author: UserDto = {
  id: 'user-1',
  name: 'User 1',
  email: 'user-1@example.com',
  emailVerified: true,
  image: null,
  createdAt: new Date('2026-01-01T00:00:00.000Z'),
  updatedAt: new Date('2026-01-01T00:00:00.000Z'),
};

const buildComment = (deletedAt: Date | null = null, authorId: string | null = 'user-1') =>
  Comment.reconstitute({
    id: 'comment-1',
    content: 'Secret',
    issueId: 1,
    authorId,
    editedAt: null,
    deletedAt,
    createdAt: new Date('2026-01-01T00:00:00.000Z'),
    updatedAt: new Date('2026-01-01T00:00:00.000Z'),
  });

describe('CommentApplicationMapper', () => {
  it('expands the author', () => {
    const dto = CommentApplicationMapper.toDto(buildComment(), new Map([[author.id, author]]));

    expect(dto.author).toEqual(author);
    expect(dto.content).toBe('Secret');
  });

  it('hides content of a deleted comment', () => {
    const dto = CommentApplicationMapper.toDto(buildComment(new Date()), new Map([[author.id, author]]));

    expect(dto.content).toBeNull();
    expect(dto.deletedAt).toBeInstanceOf(Date);
  });

  it('returns null author when the author account is deleted', () => {
    const dto = CommentApplicationMapper.toDto(buildComment(null, null), new Map());

    expect(dto.authorId).toBeNull();
    expect(dto.author).toBeNull();
  });
});