'use strict';

const assert = require('assert');
const fs = require('fs');
const path = require('path');
const { _private } = require('../src/utils/os_mouse');

(async () => {
  let active = 0;
  let maxActive = 0;
  const timeline = [];
  const logs = [];

  const results = await Promise.all([0, 1, 2, 3].map(index => (
    _private.withOsMouseLock(async () => {
      active++;
      maxActive = Math.max(maxActive, active);
      timeline.push(`start-${index}`);
      await new Promise(resolve => setTimeout(resolve, 5));
      timeline.push(`end-${index}`);
      active--;
      return index;
    }, message => logs.push(message))
  )));

  assert.deepStrictEqual(results, [0, 1, 2, 3]);
  assert.strictEqual(maxActive, 1, '真实鼠标临界区不得并行执行');
  assert.deepStrictEqual(timeline, [
    'start-0', 'end-0',
    'start-1', 'end-1',
    'start-2', 'end-2',
    'start-3', 'end-3',
  ], '真实鼠标操作应按进入顺序串行执行');
  assert(logs.some(message => message.includes('等待其它窗口')),
    '出现并发等待时应写入可观测日志');

  const source = fs.readFileSync(path.join(__dirname, '..', 'src', 'utils', 'os_mouse.js'), 'utf8');
  assert(source.includes('[WKeyboard]::keybd_event(0x1B'),
    '必须用系统级 Escape 关闭网页 DOM 无法控制的浏览器保存密码弹窗');

  console.log('os_mouse_concurrency_lock.test.js: PASS');
})().catch(error => {
  console.error(error);
  process.exitCode = 1;
});