import { describe, expect, it } from "vitest";
import { parseVideoElements } from "./videoFrameExtractor.js";

describe("parseVideoElements", () => {
  it("parses videos without an id or data-start attribute", () => {
    const videos = parseVideoElements('<video src="clip.mp4"></video>');

    expect(videos).toHaveLength(1);
    expect(videos[0]).toMatchObject({
      id: "hf-video-0",
      src: "clip.mp4",
      start: 0,
      end: Infinity,
      mediaStart: 0,
      hasAudio: false,
    });
  });

  it("preserves explicit ids and derives end from data-duration", () => {
    const videos = parseVideoElements(
      '<video id="hero" src="clip.mp4" data-start="2" data-duration="5" data-media-start="1.5" data-has-audio="true"></video>',
    );

    expect(videos).toHaveLength(1);
    expect(videos[0]).toEqual({
      id: "hero",
      src: "clip.mp4",
      start: 2,
      end: 7,
      mediaStart: 1.5,
      hasAudio: true,
    });
  });
});