import { describe, expect, it } from "vitest";

import { isInteractiveDesktopDragTarget } from "./desktop-window";

function createTarget(input: { matchesSelector: (selector: string) => boolean }): EventTarget {
  return {
    closest: (selector: string) => (input.matchesSelector(selector) ? ({} as Element) : null),
  } as unknown as EventTarget;
}

describe("isInteractiveDesktopDragTarget", () => {
  it("treats focusable pressables as interactive drag exemptions", () => {
    const target = createTarget({
      matchesSelector: (selector) => selector.includes("[tabindex]"),
    });

    expect(isInteractiveDesktopDragTarget(target)).toBe(true);
  });

  it("treats semantic button targets as interactive drag exemptions", () => {
    const target = createTarget({
      matchesSelector: (selector) => selector.includes("[role='button']"),
    });

    expect(isInteractiveDesktopDragTarget(target)).toBe(true);
  });

  it("returns false for non-interactive targets", () => {
    const target = createTarget({
      matchesSelector: () => false,
    });

    expect(isInteractiveDesktopDragTarget(target)).toBe(false);
  });

  it("returns false when the target does not support closest()", () => {
    expect(isInteractiveDesktopDragTarget(null)).toBe(false);
    expect(isInteractiveDesktopDragTarget({} as EventTarget)).toBe(false);
  });
});