/**
 * 🎓 考试组织者脚本
 *
 * 场景: 我是考试组织者
 * 1. 添加考生信息（创建考生账号）
 * 2. 考生自行登录系统完成考核
 * 3. 查看考核结果
 */
import { chromium } from 'playwright';

const API = 'http://localhost:3001';
const BASE = 'http://localhost:13001';
const TENANT_ID = 'a140a68e-f70a-44d3-b753-fa33d48cf234';

let pass = 0, fail = 0;
function assert(label, ok, detail='') {
  if (ok) { pass++; console.log(`  ✅ ${label}`); }
  else { fail++; console.log(`  ❌ ${label}${detail?' — '+detail:''}`); }
}

async function loginApi(u, p) {
  const r = await fetch(`${API}/api/auth/login`,{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({username:u,password:p})});
  return r.ok ? (await r.json()).access_token : null;
}

async function call(token, method, path, body=null) {
  const opts = {method,headers:{Authorization:`Bearer ${token}`,'Content-Type':'application/json'}};
  if(body)opts.body=JSON.stringify(body);
  const r = await fetch(`${API}/api${path}`,opts);
  return {status:r.status,data:await r.json().catch(()=>null)};
}

/** Fill textarea via native setter + input event */
async function fillSA(page, text) {
  await page.waitForFunction(() => {
    const ta = document.querySelector('textarea');
    return ta !== null && ta.offsetParent !== null;
  }, { timeout: 15000 }).catch(() => {});
  // Double-check existence
  const exists = await page.evaluate(() => {
    const ta = document.querySelector('textarea');
    return ta !== null && ta.offsetParent !== null;
  });
  if (!exists) return false;
  await page.evaluate((t) => {
    const ta = document.querySelector('textarea');
    if (!ta) return;
    Object.getOwnPropertyDescriptor(HTMLTextAreaElement.prototype, 'value')?.set?.call(ta, t);
    ta.dispatchEvent(new Event('input', { bubbles: true }));
  }, text);
  await new Promise(r => setTimeout(r, 400));
  return true;
}

/** Click send button */
async function clickSend(page) {
  await page.waitForFunction(() => {
    const btn = document.querySelector('button:has(svg.lucide-send)');
    return btn && !btn.disabled;
  }, { timeout: 10000 }).catch(() => {});
  await page.locator('button:has(svg.lucide-send)').last().click({ timeout: 5000 }).catch(() => {
    page.locator('button:has(svg.lucide-send)').last().click({ force: true, timeout: 3000 }).catch(() => {});
  });
}

/** Wait for spinner to clear */
async function waitIdle(page, ms = 1500) {
  await page.waitForFunction(() => !document.querySelector('.animate-spin'), { timeout: 60000 }).catch(() => {});
  await new Promise(r => setTimeout(r, ms));
}

/** Extract last assistant message */
async function getQuestion(page) {
  return await page.evaluate(() => {
    const bubbles = Array.from(document.querySelectorAll('.px-5.py-4'));
    for (let i = bubbles.length - 1; i >= 0; i--) {
      const el = bubbles[i];
      const text = el.textContent || '';
      if (text.length > 25 && !(el.getAttribute('class') || '').includes('bg-indigo')) {
        return text.substring(0, 140).replace(/\s+/g, ' ');
      }
    }
    return '';
  });
}

/** Detect if assessment is done */
async function isDone(page) {
  const text = await page.textContent('body').catch(() => '');
  return text.includes('合格') || text.includes('VERIFIED') || text.includes('LEVEL:');
}

// ─────────────────────────────────────
// ACT 1: 创建考生
// ─────────────────────────────────────
console.log('\n' + '█'.repeat(70));
console.log('  🎓 场景: 考试组织者添加考生');
console.log('█'.repeat(70));

const adminT = await loginApi('admin', 'admin123');
assert('组织者登录', !!adminT);

const CANDIDATES = [
  { name: '考生小明', username: 'student1', password: 'exam123', level: '初级' },
  { name: '考生小红', username: 'student2', password: 'exam123', level: '中级' },
  { name: '考生小华', username: 'student3', password: 'exam123', level: '高级' },
  { name: '考生小李', username: 'student4', password: 'exam123', level: '初级' },
];

console.log('\n─── 1. 创建考生账号 ───');
for (const s of CANDIDATES) {
  const r = await call(adminT, 'POST', '/users', {
    username: s.username, password: s.password, displayName: s.name,
  });
  s.id = r.data?.user?.id || r.data?.id;
  assert(`创建 ${s.name}(${s.username})`, r.status === 200 || r.status === 201, `status=${r.status} id=${s.id?.substring(0,8)}`);
  if (s.id) {
    await call(adminT, 'POST', `/v1/tenants/${TENANT_ID}/members`, { userId: s.id, role: 'USER' });
  }
  const t = await loginApi(s.username, s.password);
  assert(` ${s.name} 登录验证`, !!t);
}

console.log('\n  考生就绪: ' + CANDIDATES.map(s => s.name).join('、'));

// ─────────────────────────────────────
// ACT 2: 考生参加考核
// ─────────────────────────────────────
console.log('\n' + '█'.repeat(70));
console.log('  📝 场景: 考生参加考核');
console.log('█'.repeat(70));

const browser = await chromium.launch({ headless: true });

const ANSWERS_POOL = {
  primary: [
    '检查代码有没有bug和错误，看看能不能正常运行。还要关注安全性，不能有漏洞。',
    '还要看代码的性能和可读性，让别人也能看懂。要思考AI生成的内容是否正确。',
    '用清晰的提示词告诉AI具体要求，给例子说明。复杂任务让AI一步一步思考。',
    '不能把敏感信息给AI，要注意保密。AI只是工具，最终要自己做判断。',
  ],
  mid: [
    '代码审查要关注功能正确性、安全漏洞、性能瓶颈和代码风格一致性。AI生成的代码需要人工验证逻辑完整性。',
    '和AI协作要明确分工: AI负责生成和总结，人负责决策和验证。分步骤沟通可以减少误解。',
    '优化Prompt的关键是具体化: 限定范围、给出示例、明确输出格式。',
    'AI可能产生幻觉，输出看似合理但实际错误的内容。需要交叉验证关键事实。',
  ],
  advanced: [
    '代码审查需要系统性检查: 功能完整性、安全漏洞(OWASP Top 10)、性能复杂度、可维护性。',
    'AI协作的成熟模式是"人在回路中": AI做快速原型和批量处理，人做架构决策和质量把关。',
    'Prompt Engineering的核心: 角色设定、上下文锚定、分步推理(Chain-of-Thought)、约束边界。',
    'AI安全使用: 输入边界(不泄露敏感信息)、输出验证(防注入和幻觉)、权限控制。',
  ],
};

for (const s of CANDIDATES) {
  console.log(`\n─── ${s.name}(${s.level}) 开始考核 ───`);
  const levelKey = s.level === '初级' ? 'primary' : s.level === '中级' ? 'mid' : 'advanced';
  const answers = ANSWERS_POOL[levelKey];
  let ansIdx = 0, saCount = 0, choiceCount = 0, followUpCount = 0;

  const page = await browser.newPage({ viewport: { width: 1440, height: 900 } });

  try {
    // Login
    await page.goto(`${BASE}/login`, { waitUntil: 'networkidle' });
    await page.waitForTimeout(1000);
    await page.locator('input[type="text"]').first().fill(s.username);
    await page.locator('input[type="password"]').first().fill(s.password);
    await page.locator('button[type="submit"]').click();
    await page.waitForURL('**/');

    // Enter assessment
    await page.goto(`${BASE}/assessment`, { waitUntil: 'networkidle' });
    await page.waitForTimeout(2000);
    await page.locator('button:has-text("AI协作技巧")').first().click();
    await page.waitForTimeout(500);
    await page.locator('button:has-text("开始专业评估")').first().click();

    // Wait for first question
    for (let i = 0; i < 120; i++) {
      const text = await page.textContent('body').catch(() => '');
      if (text.includes('问题 ') || text.includes('Question ')) break;
      await new Promise(r => setTimeout(r, 2000));
    }
    await waitIdle(page);

    // Answer questions (up to 4)
    for (let q = 1; q <= 4; q++) {
      if (await isDone(page)) { console.log('  📋 考核已结束'); break; }

      const qText = await getQuestion(page);
      console.log(`  第${q}/4题: ${qText || '(题型检测中)'}...`);

      // Wait for either choice or textarea
      for (let w = 0; w < 20; w++) {
        const t = await page.evaluate(() => {
          const opts = Array.from(document.querySelectorAll('button.w-full.text-left.px-5.py-4'))
            .filter(b => /^[A-D]/.test(b.textContent || ''));
          const ta = document.querySelector('textarea');
          return { c: opts.length, sa: ta && ta.offsetParent !== null };
        });
        if (t.c > 0 || t.sa) break;
        await new Promise(r => setTimeout(r, 1500));
      }

      if (await isDone(page)) break;

      // Detect final type
      const type = await page.evaluate(() => {
        const opts = Array.from(document.querySelectorAll('button.w-full.text-left.px-5.py-4'))
          .filter(b => /^[A-D]/.test(b.textContent || ''));
        const ta = document.querySelector('textarea');
        return { isChoice: opts.length > 0, isSA: ta && ta.offsetParent !== null };
      });

      if (type.isChoice) {
        // ── Choice ──
        choiceCount++;
        const opts = page.locator('button.w-full.text-left.px-5.py-4');
        const n = await opts.count();
        if (n > 0) {
          await opts.nth(Math.min(1, n - 1)).click();
          await new Promise(r => setTimeout(r, 300));
        }
        const confirm = page.locator('button:has-text("确认答案")');
        if (await confirm.isVisible().catch(() => false)) {
          await confirm.click();
        }
        console.log('    📋 选择题 → 已选');
        await waitIdle(page);
      } else if (type.isSA) {
        // ── Short Answer ──
        saCount++;
        const ans = answers[ansIdx % answers.length];
        ansIdx++;

        const filled = await fillSA(page, ans);
        if (!filled) {
          // textarea disappeared; check if done
          if (await isDone(page)) break;
          q--;
          continue;
        }
        await clickSend(page);
        console.log(`    ✏️ 简答 → "${ans.substring(0, 28)}..."`);
        await waitIdle(page, 2000);

        // Check for follow-up
        const stillTA = await page.evaluate(() => {
          const ta = document.querySelector('textarea');
          return ta && ta.offsetParent !== null;
        });
        if (stillTA) {
          followUpCount++;
          const followAns = ans.includes('安全')
            ? '还要注意权限管理和审计日志记录。'
            : '还有就是要考虑可维护性和团队协作规范。';
          await fillSA(page, followAns);
          await clickSend(page);
          console.log('    🔄 追问已答');
          await waitIdle(page);
        }
      } else {
        await new Promise(r => setTimeout(r, 2000));
        q--;
      }
    }

    // Wait for results
    console.log('  ⏳ 等待评分...');
    await new Promise(r => setTimeout(r, 5000));
    while (!(await isDone(page))) {
      await waitIdle(page, 3000);
    }

    const result = await page.evaluate(() => {
      const body = document.body.textContent || '';
      const scores = Array.from(body.matchAll(/(\d+\.?\d*)\/10/g)).map(m => m[1]);
      const level = body.match(/LEVEL:\s*(\w+)/i)?.[1] || body.match(/等级[：:]\s*(\w+)/)?.[1] || '?';
      const passed = body.includes('合格') || body.includes('VERIFIED');
      return { scores: scores.join(', '), level, passed };
    });

    s.result = result;
    s.saCount = saCount;
    s.choiceCount = choiceCount;
    s.followUp = followUpCount;

    console.log(`  📊 ${s.name}: ${result.passed ? '🎉 合格' : '📝 完成'} | 等级=${result.level} | 得分=${result.scores || '无'}`);

  } catch (err) {
    console.error(`  ❌ ${s.name} 异常: ${err.message}`);
    s.error = err.message;
    s.result = { level: 'ERR', passed: false, scores: '' };
  } finally {
    await page.close();
  }
}

// ─────────────────────────────────────
// ACT 3: 查看考核结果
// ─────────────────────────────────────
console.log('\n' + '█'.repeat(70));
console.log('  📊 场景: 查看考核结果');
console.log('█'.repeat(70));

console.log('');
console.log('  ┌──────────┬──────────┬──────┬────────┬─────────┬──────────────────┐');
console.log('  │ 准考证号 │ 姓名    │ 级别 │ 结果   │ 等级    │ 明细             │');
console.log('  ├──────────┼──────────┼──────┼────────┼─────────┼──────────────────┤');
for (const s of CANDIDATES) {
  const st = s.result?.passed ? '🎉合格' : '📝完成';
  const lv = s.result?.level || '?';
  const dt = `${s.choiceCount||0}选${s.saCount||0}简${s.followUp||0}追`;
  console.log(`  │ ${s.username.padEnd(8)} │ ${s.name.padEnd(6)}  │ ${s.level.padEnd(4)} │ ${st.padEnd(5)} │ ${lv.padEnd(7)} │ ${dt.padEnd(16)} │`);
}
console.log('  └──────────┴──────────┴──────┴────────┴─────────┴──────────────────┘');

const passed = CANDIDATES.filter(s => s.result?.passed).length;
console.log(`\n  📈 统计: 考生${CANDIDATES.length}人 | 合格${passed}人 | 不合格${CANDIDATES.length-passed}人\n`);

await browser.close();

console.log(`  🎓 考试组织完成: ${pass} ✅ / ${fail} ❌`);
if (fail > 0) process.exit(1);