'use strict';

const assert = require('assert');
const fs = require('fs');
const path = require('path');
const {
  acceptGoogleWorkspaceWelcome,
  isGoogleWorkspaceTwoStepEnrollmentPrompt,
  dismissGoogleWorkspaceTwoStepEnrollmentPrompt,
  _private,
} = require('../src/services/google_workspace_welcome_service');

function makePage({ body, buttonText = 'I understand', url = 'https://accounts.google.com/signin/welcome', clickUrl = 'https://myaccount.google.com/' }) {
  let currentUrl = url;
  let clicked = false;
  let scrolled = false;
  const button = {
    isVisible: async () => true,
    scrollIntoViewIfNeeded: async () => { scrolled = true; },
    click: async () => {
      clicked = true;
      currentUrl = clickUrl;
    },
  };
  return {
    page: {
      url: () => currentUrl,
      locator: selector => {
        if (selector === 'body') return { innerText: async () => body };
        const matches = selector.includes(buttonText);
        return {
          count: async () => matches ? 1 : 0,
          nth: () => button,
        };
      },
      waitForLoadState: async () => {},
      waitForTimeout: async () => {},
    },
    state: () => ({ clicked, scrolled, currentUrl }),
  };
}

(async () => {
  const english = makePage({
    body: 'Welcome to your new account\nYour organization administrator manages this account\nI understand',
  });
  assert.strictEqual(await acceptGoogleWorkspaceWelcome(english.page), true);
  assert.deepStrictEqual(english.state(), {
    clicked: true,
    scrolled: true,
    currentUrl: 'https://myaccount.google.com/',
  });

  const chinese = makePage({
    body: '欢迎使用您的新账号\n您的组织管理员会管理此账号\n我明白了',
    buttonText: '我明白了',
  });
  assert.strictEqual(await acceptGoogleWorkspaceWelcome(chinese.page), true);
  assert.strictEqual(chinese.state().clicked, true);

  const unrelated = makePage({ body: 'Google OAuth consent\nI understand' });
  assert.strictEqual(await acceptGoogleWorkspaceWelcome(unrelated.page), false, '普通授权页不得误点');
  assert.strictEqual(unrelated.state().clicked, false);

  const nonGoogle = makePage({
    body: 'Welcome to your new account\nI understand',
    url: 'https://example.com/welcome',
  });
  assert.strictEqual(await acceptGoogleWorkspaceWelcome(nonGoogle.page), false, '非 Google 页面不得处理');

  const twoStepPrompt = makePage({
    body: 'Đừng để tài khoản bị khóa\nXác minh 2 bước\nĐĂNG KÝ',
    buttonText: 'ĐĂNG KÝ',
  });
  assert.strictEqual(await isGoogleWorkspaceTwoStepEnrollmentPrompt(twoStepPrompt.page), true);
  assert.strictEqual(twoStepPrompt.state().clicked, false, '两步验证提醒页只识别，不得点击注册');

  const twoStepInterstitial = makePage({
    body: '',
    url: 'https://myaccount.google.com/interstitials/twosvrequired?hl=vi&continue=https://accounts.google.com/',
  });
  assert.strictEqual(
    await isGoogleWorkspaceTwoStepEnrollmentPrompt(twoStepInterstitial.page),
    true,
    'myaccount twosvrequired 应按 URL 直接识别，不依赖正文是否已加载',
  );
  assert.strictEqual(twoStepInterstitial.state().clicked, false, 'twosvrequired 页面不得点击注册');

  const vietnameseLater = makePage({
    body: 'Đừng để tài khoản bị khóa\nXác minh 2 bước\nĐĂNG KÝ\nThực hiện sau',
    buttonText: 'Thực hiện sau',
    url: 'https://myaccount.google.com/interstitials/twosvrequired?hl=vi&continue=https://accounts.google.com/',
    clickUrl: 'https://accounts.google.com/o/oauth2/v2/auth',
  });
  assert.deepStrictEqual(
    await dismissGoogleWorkspaceTwoStepEnrollmentPrompt(vietnameseLater.page),
    { detected: true, dismissed: true },
  );
  assert.strictEqual(vietnameseLater.state().clicked, true, '必须点击“Thực hiện sau”，不能反复打开 OAuth 链接');
  assert.strictEqual(vietnameseLater.state().currentUrl, 'https://accounts.google.com/o/oauth2/v2/auth');

  const englishThisLater = makePage({
    body: 'Your domain will soon enforce 2-Step Verification\nENROLL\nDo this later',
    buttonText: 'Do this later',
    url: 'https://myaccount.google.com/interstitials/twosvrequired?hl=en&continue=https://accounts.google.com/',
    clickUrl: 'https://accounts.google.com/o/oauth2/v2/auth',
  });
  assert.deepStrictEqual(
    await dismissGoogleWorkspaceTwoStepEnrollmentPrompt(englishThisLater.page),
    { detected: true, dismissed: true },
  );
  assert.strictEqual(englishThisLater.state().clicked, true, '英文页面必须点击“Do this later”，不得点击 ENROLL');

  assert(_private.WELCOME_TEXT_PATTERN.test('Welcome to your new account'));
  const root = path.join(__dirname, '..');
  const loginSource = fs.readFileSync(path.join(root, 'src', 'services', 'login_service.js'), 'utf8');
  const oauthSource = fs.readFileSync(path.join(root, 'src', 'services', 'ag_verify_service.js'), 'utf8');
  assert.match(loginSource, /acceptGoogleWorkspaceWelcome\(page, logCallback\)/);
  assert.match(oauthSource, /acceptGoogleWorkspaceWelcome\(page, _log\)/);
  assert.match(loginSource, /dismissGoogleWorkspaceTwoStepEnrollmentPrompt\(page, logCallback\)/);
  assert.match(oauthSource, /dismissGoogleWorkspaceTwoStepEnrollmentPrompt\(page, _log\)/);
  assert.doesNotMatch(oauthSource, /acceptGoogleWorkspaceTwoStepEnrollment/);

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