/**
 * @file useSpin.test.ts
 * @description Tests the Refresh-button hook: the reload runs with no
 * arguments, a click while it is in flight is dropped, and the spin lasts at
 * least the floor even when the reload answers at once — also under StrictMode's
 * mount → unmount → mount, which once left it spinning for good.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */

import { describe, it, expect, vi, afterEach } from "vitest";
import { StrictMode } from "react";
import { act, renderHook } from "@testing-library/react";
import { useSpin } from "../useSpin";

afterEach(() => vi.useRealTimers());

describe("useSpin", () => {
  it("drops a click while the reload is in flight, and spins for the floor after it answers", async () => {
    vi.useFakeTimers();
    let answer!: () => void;
    const load = vi.fn(() => new Promise<void>((r) => (answer = r)));
    const { result } = renderHook(() => useSpin(load, 600));

    act(() => {
      void result.current[1]();
    });
    expect(result.current[0]).toBe(true);
    expect(load).toHaveBeenCalledWith();
    act(() => {
      void result.current[1]();
    });
    expect(load).toHaveBeenCalledTimes(1);

    // Answered at once: still spinning until the floor, but a new click reloads.
    await act(async () => answer());
    expect(result.current[0]).toBe(true);
    act(() => {
      void result.current[1]();
    });
    expect(load).toHaveBeenCalledTimes(2);
    await act(async () => {
      answer();
      await vi.advanceTimersByTimeAsync(600);
    });
    expect(result.current[0]).toBe(false);
  });

  it("stops spinning under StrictMode's double mount", async () => {
    vi.useFakeTimers();
    const { result } = renderHook(() => useSpin(() => undefined, 600), { wrapper: StrictMode });
    await act(async () => {
      void result.current[1]();
      await vi.advanceTimersByTimeAsync(600);
    });
    expect(result.current[0]).toBe(false);
  });
});