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

const spawnMock = vi.hoisted(() => vi.fn());
const unrefMock = vi.hoisted(() => vi.fn());

vi.mock("node:child_process", () => ({
  spawn: (...args: unknown[]) => spawnMock(...args),
}));

import { scheduleDetachedLaunchdRestartHandoff } from "./launchd-restart-handoff.js";

afterEach(() => {
  spawnMock.mockReset();
  unrefMock.mockReset();
  spawnMock.mockReturnValue({ pid: 4242, unref: unrefMock });
});

describe("scheduleDetachedLaunchdRestartHandoff", () => {
  it("waits for the caller pid before kickstarting launchd", () => {
    const env = {
      HOME: "/Users/test",
      OPENCLAW_PROFILE: "default",
    };
    spawnMock.mockReturnValue({ pid: 4242, unref: unrefMock });

    const result = scheduleDetachedLaunchdRestartHandoff({
      env,
      mode: "kickstart",
      waitForPid: 9876,
    });

    expect(result).toEqual({ ok: true, pid: 4242 });
    expect(spawnMock).toHaveBeenCalledTimes(1);
    const [, args] = spawnMock.mock.calls[0] as [string, string[]];
    expect(args[0]).toBe("-c");
    expect(args[2]).toBe("openclaw-launchd-restart-handoff");
    expect(args[6]).toBe("9876");
    expect(args[1]).toContain('while kill -0 "$wait_pid" >/dev/null 2>&1; do');
    expect(args[1]).toContain('launchctl kickstart -k "$service_target" >/dev/null 2>&1');
    expect(args[1]).not.toContain("sleep 1");
    expect(unrefMock).toHaveBeenCalledTimes(1);
  });
});
