import { expect, test } from "@playwright/test";

import {
  getVideoFrameExtractionCopy,
  getVideoFrameExtractionTarget,
} from "../../lib/video-canvas/video-frame-extraction";

test.describe("video frame extraction tools", () => {
  test("selects deterministic first, last, and current frame timestamps", () => {
    expect(getVideoFrameExtractionTarget("first", 2.5, 5)).toBe(0);
    expect(getVideoFrameExtractionTarget("last", 0, 5)).toBeCloseTo(4.95);
    expect(getVideoFrameExtractionTarget("current", 2.5, 5)).toBe(2.5);
    expect(getVideoFrameExtractionTarget("current", 20, 5)).toBeCloseTo(4.95);
    expect(getVideoFrameExtractionTarget("last", 0, 0.02)).toBe(0);
  });

  test("matches competitor frame result titles and image labels", () => {
    expect(getVideoFrameExtractionCopy("first")).toEqual({ alt: "视频首帧", title: "首帧" });
    expect(getVideoFrameExtractionCopy("last")).toEqual({ alt: "视频尾帧", title: "尾帧" });
    expect(getVideoFrameExtractionCopy("current")).toEqual({ alt: "视频截图", title: "截图" });
  });
});