/* webtest-agent 前端逻辑 */
const $ = s => document.querySelector(s);
const API = '';

async function refreshHealth() {
  try {
    const r = await fetch(API + '/health');
    const d = await r.json();
    $('#health').textContent = `服务正常 | 模型: ${d.llm_model} | 运行中任务: ${d.concurrent}`;
    $('#health').classList.add('ok');
  } catch (e) {
    $('#health').textContent = '服务异常';
    $('#health').classList.remove('ok');
  }
}

const STATUS_MAP = {
  queued: '排队中', running: '测试中', finished: '已完成', stopped: '已停止'
};
const RESULT_MAP = {
  pending: '待定', pass: '✅ 通过', fail: '❌ 失败', error: '⚠️ 错误', stopped: '⏹️ 停止'
};

function esc(s) {
  return String(s ?? '').replace(/[&<>"']/g, c => (
    {'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;',"'":'&#39;'}[c]));
}

async function loadTasks() {
  try {
    const r = await fetch(API + '/api/tasks');
    const d = await r.json();
    const tb = $('#task-table tbody');
    if (!d.tasks.length) {
      tb.innerHTML = '<tr><td colspan="8" class="empty">暂无任务，先发起一个吧</td></tr>';
      return;
    }
    tb.innerHTML = d.tasks.map(t => {
      const ops = t.status === 'running' || t.status === 'queued'
        ? `<button class="btn small" onclick="stopTask('${t.id}')">停止</button> `
        : '';
      const report = t.status === 'finished'
        ? `<a class="report-link" href="#" onclick="openReport('${t.id}');return false;">报告</a>`
        : '';
      return `<tr>
        <td>${esc(t.id)}</td>
        <td>${esc(t.url)}</td>
        <td><div class="goal-cell" title="${esc(t.goal)}">${esc(t.goal)}</div></td>
        <td><span class="status ${esc(t.status)}">${STATUS_MAP[t.status] || esc(t.status)}</span></td>
        <td><span class="result ${esc(t.result)}">${RESULT_MAP[t.result] || esc(t.result)}</span></td>
        <td>${t.steps || 0}</td>
        <td>${esc(t.created)}</td>
        <td><button class="btn small" onclick="openDetail('${t.id}')">详情</button> ${ops}${report}</td>
      </tr>`;
    }).join('');
  } catch (e) {
    $('#task-table tbody').innerHTML = '<tr><td colspan="8" class="empty">加载失败</td></tr>';
  }
}

async function stopTask(tid) {
  if (!confirm('确定停止该任务？')) return;
  await fetch(API + `/api/tasks/${tid}/stop`, { method: 'POST' });
  setTimeout(loadTasks, 500);
}

function openReport(tid) {
  $('#report-frame').src = API + `/api/tasks/${tid}/report`;
  $('#modal-title').textContent = `测试报告 - ${tid}`;
  $('#report-modal').classList.remove('hidden');
}

/* ========== 任务详情 ========== */
let detailTid = null;
let detailTimer = null;

function openDetail(tid) {
  detailTid = tid;
  $('#detail-title').textContent = `任务详情 - ${tid}`;
  $('#detail-steps').innerHTML = '<div class="empty">加载中...</div>';
  $('#detail-modal').classList.remove('hidden');
  refreshDetail();
  detailTimer = setInterval(refreshDetail, 2500);
}

function closeDetail() {
  detailTid = null;
  if (detailTimer) { clearInterval(detailTimer); detailTimer = null; }
  $('#detail-modal').classList.add('hidden');
}

const ACTION_LABEL = { click: '点击', fill: '填表', select: '选择', press: '按键',
  wait: '等待', scroll: '滚动', assert: '断言', screenshot: '截图', done: '完成', fail: '失败' };

async function refreshDetail() {
  if (!detailTid) return;
  let t;
  try {
    const r = await fetch(API + `/api/tasks/${detailTid}`);
    t = await r.json();
  } catch (e) { return; }

  // 元信息
  const done = t.status === 'finished' || t.status === 'stopped';
  $('#detail-meta').innerHTML = `
    <div class="m-item"><b>目标网址</b><span>${esc(t.url)}</span></div>
    <div class="m-item"><b>测试目标</b><span>${esc(t.goal)}</span></div>
    <div class="m-item"><b>状态</b><span><span class="status ${esc(t.status)}">${STATUS_MAP[t.status] || esc(t.status)}</span> / <span class="result ${esc(t.result)}">${RESULT_MAP[t.result] || esc(t.result)}</span></span></div>
    <div class="m-item"><b>步骤</b><span>${t.steps || 0} / ${t.max_steps}</span></div>
    <div class="m-item"><b>创建时间</b><span>${esc(t.created)}</span></div>
    ${t.finished ? `<div class="m-item"><b>结束时间</b><span>${esc(t.finished)}</span></div>` : ''}
  `;

  // 实时状态条
  const cur = t.current;
  const liveBar = $('#live-bar');
  if (!done && cur) {
    liveBar.classList.remove('hidden');
    $('#live-phase').textContent = `步骤 ${cur.step || '-'}: ${cur.phase || ''}` +
      (cur.elapsed ? `（已运行 ${cur.elapsed}s）` : '');
    let d = cur.detail || '';
    if (cur.reason) d += `<div class="live-reason">💡 ${esc(cur.reason)}</div>`;
    $('#live-detail').innerHTML = esc(d);
  } else {
    liveBar.classList.add('hidden');
  }

  // 按钮
  $('#detail-report-btn').classList.toggle('hidden', !done || t.result === 'error');
  $('#detail-stop-btn').classList.toggle('hidden', done);

  // 步骤列表
  const steps = t.steps_log || [];
  if (!steps.length) {
    $('#detail-steps').innerHTML = '<div class="empty">还没有步骤记录，AI 正在准备...</div>';
  } else {
    $('#detail-steps').innerHTML = steps.map(s => {
      const act = s.action || '';
      const actCls = ['assert','click','fill','fail'].includes(act) ? act : '';
      const shot = s.screenshot
        ? `<div class="step-shot"><img src="${API}/api/tasks/${detailTid}/screenshot/${esc(s.screenshot)}" loading="lazy" onclick="window.open(this.src)"></div>`
        : '';
      const resCls = s.result === 'ok' ? 'ok' : (s.result === 'fail' || s.result === 'error' ? 'bad' : '');
      return `<div class="step-card">
        <div class="step-top">
          <span class="step-num">#${s.n}</span>
          <span class="step-action ${actCls}">${ACTION_LABEL[act] || act}</span>
          ${s.target ? `<span class="step-target">${esc(s.target)}${s.value ? ' ' + esc(s.value) : ''}</span>` : ''}
          <span class="step-result ${resCls}">${esc(s.result)}</span>
          <span class="step-time">${esc(s.ts || '')}</span>
        </div>
        ${s.reason ? `<div class="step-reason">💡 ${esc(s.reason)}</div>` : ''}
        ${s.detail ? `<div class="step-detail">${esc(s.detail)}</div>` : ''}
        ${shot}
      </div>`;
    }).join('');
  }

  // 结束后停止轮询
  if (done) { if (detailTimer) { clearInterval(detailTimer); detailTimer = null; } }
}

$('#detail-close').onclick = closeDetail;
$('#detail-modal').onclick = e => { if (e.target === $('#detail-modal')) closeDetail(); };
$('#detail-stop-btn').onclick = async () => {
  if (!detailTid || !confirm('确定停止该任务？')) return;
  await fetch(API + `/api/tasks/${detailTid}/stop`, { method: 'POST' });
  refreshDetail(); loadTasks();
};
$('#detail-report-btn').onclick = () => { if (detailTid) openReport(detailTid); };

$('#modal-close').onclick = () => $('#report-modal').classList.add('hidden');
$('#report-modal').onclick = e => { if (e.target === $('#report-modal')) $('#report-modal').classList.add('hidden'); };

$('#submit').onclick = async () => {
  const url = $('#url').value.trim();
  const goal = $('#goal').value.trim();
  if (!url || !goal) { alert('请填写网址和测试目标'); return; }
  const btn = $('#submit');
  btn.disabled = true; btn.textContent = '提交中...';
  try {
    const r = await fetch(API + '/api/tasks', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({
        url, goal,
        max_steps: parseInt($('#max_steps').value) || 30,
        timeout: parseInt($('#timeout').value) || 600
      })
    });
    const d = await r.json();
    if (d.error) { alert('提交失败: ' + d.error); }
    else {
      $('#goal').value = '';
      loadTasks();
      // 轮询直到该任务结束
      pollTask(d.task_id);
    }
  } catch (e) { alert('提交失败: ' + e); }
  finally { btn.disabled = false; btn.textContent = '🚀 开始测试'; }
};

function pollTask(tid, count = 0) {
  if (count > 400) return;
  setTimeout(async () => {
    try {
      const r = await fetch(API + `/api/tasks/${tid}`);
      const t = await r.json();
      loadTasks();
      if (t.status === 'finished' || t.status === 'stopped') return;
      pollTask(tid, count + 1);
    } catch (e) { /* ignore */ }
  }, 3000);
}

$('#refresh').onclick = loadTasks;

refreshHealth();
loadTasks();
setInterval(refreshHealth, 30000);
setInterval(loadTasks, 5000);