import { shouldHydrateInlineImageForVisibility, shouldHydratePlayableMediaForVisibility } from './attachment-hydration-visibility.rules';

const diskBackedImage = {
  available: false,
  filename: 'photo.png',
  id: 'att-1',
  isImage: true,
  mime: 'image/png',
  savedPath: '/appdata/photo.png'
};
const diskBackedVideo = {
  available: false,
  mime: 'video/mp4',
  savedPath: '/appdata/clip.mp4'
};

describe('attachment hydration visibility rules', () => {
  it('hydrates a disk-backed image only when the message is visible', () => {
    expect(shouldHydrateInlineImageForVisibility(diskBackedImage, true)).toBe(true);
    expect(shouldHydrateInlineImageForVisibility(diskBackedImage, false)).toBe(false);
  });

  it('never hydrates an image that is already displayable', () => {
    const displayable = {
      ...diskBackedImage,
      available: true,
      objectUrl: 'blob:http://localhost/abc'
    };

    expect(shouldHydrateInlineImageForVisibility(displayable, true)).toBe(false);
  });

  it('hydrates disk-backed playable media only when the message is visible', () => {
    expect(shouldHydratePlayableMediaForVisibility(diskBackedVideo, true)).toBe(true);
    expect(shouldHydratePlayableMediaForVisibility(diskBackedVideo, false)).toBe(false);
  });

  it('never hydrates media that already has an object URL', () => {
    const hydrated = {
      ...diskBackedVideo,
      objectUrl: 'blob:http://localhost/def'
    };

    expect(shouldHydratePlayableMediaForVisibility(hydrated, true)).toBe(false);
  });
});