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

import {
  DEFAULT_VIDEO_CLIP_RANGE,
  getVideoClipDuration,
  normalizeVideoClipRange,
  snapVideoClipRatio,
} from "../../lib/video-canvas/video-clip";

test.describe("video canvas clip tools", () => {
  test("defaults the clip selection to the first third", () => {
    expect(normalizeVideoClipRange(undefined)).toEqual(DEFAULT_VIDEO_CLIP_RANGE);
    expect(getVideoClipDuration(DEFAULT_VIDEO_CLIP_RANGE, 5)).toBeCloseTo(5 / 3, 8);
  });

  test("keeps clip handles ordered and inside the source", () => {
    expect(normalizeVideoClipRange({ start: -2, end: 4 })).toEqual({ start: 0, end: 1 });
    expect(normalizeVideoClipRange({ start: 0.8, end: 0.8 })).toEqual({ start: 0.8, end: 0.84 });
  });

  test("snaps drag positions to integer seconds", () => {
    expect(snapVideoClipRatio(0.34, 5)).toBe(0.4);
    expect(snapVideoClipRatio(0.99, 5)).toBe(1);
  });
});