// popup.js — 控制面板逻辑
const btnStart = document.getElementById('btnStart');
const btnPause = document.getElementById('btnPause');
const btnExport = document.getElementById('btnExport');
const btnClear = document.getElementById('btnClear');
const statusText = document.getElementById('statusText');
const progressFill = document.getElementById('progressFill');
const logBox = document.getElementById('logBox');
const modeSelect = document.getElementById('modeSelect');
const optDedup = document.getElementById('optDedup');
const optChat = document.getElementById('optChat');
const limitSelect = document.getElementById('limitSelect');
const chatTimeRangeSelect = document.getElementById('chatTimeRange');
const chatCustomDates = document.getElementById('chatCustomDates');
const chatSinceDate = document.getElementById('chatSinceDate');
const chatUntilDate = document.getElementById('chatUntilDate');
const chatLimitHint = document.getElementById('chatLimitHint');

function addLog(msg, type = '') {
  const p = document.createElement('p');
  p.className = type;
  p.textContent = `[${new Date().toLocaleTimeString()}] ${msg}`;
  logBox.appendChild(p);
  logBox.scrollTop = logBox.scrollHeight;
}

function setProgress(current, total) {
  const pct = total > 0 ? Math.round((current / total) * 100) : 0;
  progressFill.style.width = pct + '%';
  statusText.textContent = `${current} / ${total} (${pct}%)`;
}

function updateButtons(phase) {
  const running = phase === 'list' || phase === 'detail';
  const paused = phase === 'paused';

  btnStart.disabled = running || paused;
  btnPause.disabled = !running && !paused;
  btnPause.textContent = paused ? '恢复' : '暂停';
  btnExport.disabled = running || paused;
}

// 带重试的 send，content script 注入需要时间
function send(action, data = {}, retries = 3) {
  return new Promise(resolve => {
    function attempt(remaining) {
      chrome.tabs.query({ active: true, currentWindow: true }, tabs => {
        if (!tabs[0]) { addLog('未找到活动标签页', 'error'); resolve(); return; }

        // 检查是否在正确的域名
        if (!tabs[0].url || !tabs[0].url.includes('message.alibaba.com')) {
          addLog('请在 message.alibaba.com 页面操作', 'error');
          resolve();
          return;
        }

        chrome.tabs.sendMessage(tabs[0].id, { action, ...data }, resp => {
          if (chrome.runtime.lastError) {
            // content script 未注入(扩展重载后旧页面失效/新标签注入慢)→ 程序化注入兜底。
            // content.js 自带 __alibabaScraperInit 防重复注入,重复执行安全。
            chrome.scripting.executeScript({ target: { tabId: tabs[0].id }, files: ['content.js'] }, () => {
              if (chrome.runtime.lastError) {
                addLog('自动注入失败: ' + chrome.runtime.lastError.message, 'error');
                resolve();
                return;
              }
              if (remaining > 0) {
                setTimeout(() => attempt(remaining - 1), 800);  // 注入完成后再试
              } else {
                addLog('连接失败，请刷新页面后重试', 'error');
                resolve();
              }
            });
          } else {
            resolve(resp);
          }
        });
      });
    }
    attempt(retries);
  });
}

// 检查当前状态
send('getState').then(resp => {
  if (resp) {
    if (resp.running) {
      addLog(`有进行中的任务 (列表${resp.listCount}条, 详情${resp.detailCount}条, 队列${resp.queueIndex}/${resp.queueTotal})`, 'info');
      statusText.textContent = `运行中 (${resp.queueIndex}/${resp.queueTotal})`;
      updateButtons(resp.phase);
    } else if (resp.phase === 'paused') {
      addLog('有暂停的任务，点击"恢复"继续', 'info');
      statusText.textContent = '已暂停';
      updateButtons('paused');
    }
  }
});

btnStart.addEventListener('click', async () => {
  const range = computeChatRange(chatTimeRangeSelect.value, chatSinceDate.value, chatUntilDate.value);
  if (range.error) { addLog(range.error, 'error'); statusText.textContent = '就绪'; updateButtons('idle'); return; }
  // 与 range 同步快照:导航等待 5s 内用户仍可改下拉,不能让部分参数冻结、部分活读(参数漂移)
  const chatLimitSnap = chatTimeRangeSelect.value === 'all' ? (parseInt(document.getElementById('chatLimitInput').value, 10) || 0) : 0;
  updateButtons('list');
  hideRiskBanner();  // 开始新任务时隐藏风控红条
  addLog('开始抓取...', 'info');
  statusText.textContent = '启动中...';
  chrome.tabs.query({ active: true, currentWindow: true }, async (tabs) => {
    const tab = tabs && tabs[0];
    // 不在消息页 → 自动跳转，等 content.js 注入后再发 start
    if (tab && !(tab.url && tab.url.includes('message.alibaba.com'))) {
      addLog('当前不在消息页，自动跳转...', 'info');
      statusText.textContent = '跳转消息页...';
      await chrome.tabs.update(tab.id, { url: 'https://message.alibaba.com/message/default.htm#feedback/all' });
      await new Promise(r => setTimeout(r, 5000));   // 等 document_idle + content 注入
      addLog('消息页就绪，开始抓取', 'info');
    }
    await send('start', {
      mode: modeSelect.value,
      dedup: optDedup.checked,
      chat: optChat.checked,
      limit: parseInt(limitSelect.value, 10),
      chatLimit: chatLimitSnap,
      chatSince: range.since,
      chatUntil: range.until,
    });
  });
});

btnPause.addEventListener('click', async () => {
  const phase = btnPause.textContent === '恢复' ? 'resume' : 'pause';
  await send(phase);
  if (phase === 'pause') {
    updateButtons('paused');
    statusText.textContent = '已暂停';
    btnPause.textContent = '恢复';
    addLog('已暂停（支持跨页面恢复）', 'info');
  } else {
    updateButtons('list');
    hideRiskBanner();  // 恢复时隐藏风控红条(用户已处理验证码)
    statusText.textContent = '恢复中...';
    btnPause.textContent = '暂停';
    addLog('恢复抓取...', 'info');
  }
});

btnExport.addEventListener('click', async () => {
  addLog('生成 CSV...', 'info');
  const resp = await send('export');
  if (resp && resp.success) {
    addLog(`导出 ${resp.count} 条数据`, 'success');
    const blob = new Blob(['\uFEFF' + resp.csv], { type: 'text/csv;charset=utf-8' });
    const url = URL.createObjectURL(blob);
    const a = document.createElement('a');
    a.href = url;
    a.download = `alibaba_inquiry_${new Date().toISOString().slice(0, 10)}.csv`;
    a.click();
    URL.revokeObjectURL(url);
  }
});

btnClear.addEventListener('click', async () => {
  await send('clear');
  hideRiskBanner();  // 清空时隐藏风控红条
  logBox.innerHTML = '';
  statusText.textContent = '就绪';
  progressFill.style.width = '0%';
  btnPause.textContent = '暂停';
  updateButtons('idle');
  addLog('数据已清空', 'info');
});

// 监听 content script 推送
chrome.runtime.onMessage.addListener(msg => {
  if (msg.type === 'log') addLog(msg.text, msg.level || '');
  if (msg.type === 'progress') setProgress(msg.current, msg.total);
  if (msg.type === 'done') { updateButtons('done'); btnExport.disabled = false; statusText.textContent = '完成'; }
  if (msg.type === 'error') { updateButtons('idle'); statusText.textContent = '出错'; }
  // 安全层 #6:风控报警 —— 顶部红条 + 日志,按钮切到 paused 态
  if (msg.type === 'risk') {
    const banner = document.getElementById('riskBanner');
    if (banner) banner.style.display = 'block';
    addLog('⚠️ 疑似触发风控: ' + (msg.msg || ''), 'error');
    updateButtons('paused');
    statusText.textContent = '风控暂停';
  }
});

// 隐藏风控红条(开始新任务/恢复时调用)
function hideRiskBanner() {
  const banner = document.getElementById('riskBanner');
  if (banner) banner.style.display = 'none';
}

// ==== 聊天时间范围(spec 2026-08-25 §4.1)====
// minusMonths/computeChatRange 与 scripts/verify-chat-range.mjs 基准实现逐字同步
// 自然月回退:直接 setMonth(-n) 月末溢出(3-31−1月→"2-31"→3-02),先退月初再钳制天数
function minusMonths(base, n) {
  const d = new Date(base.getFullYear(), base.getMonth(), 1,
    base.getHours(), base.getMinutes(), base.getSeconds(), base.getMilliseconds());
  d.setMonth(d.getMonth() - n);
  const lastDay = new Date(d.getFullYear(), d.getMonth() + 1, 0).getDate();
  d.setDate(Math.min(base.getDate(), lastDay));
  return d;
}
// popup 范围计算:mode=all|1m|2m|3m|custom → {since,until}(ISO|null) 或 {error}
function computeChatRange(mode, sinceStr, untilStr) {
  if (mode === 'all') return { since: null, until: null };
  if (mode === '1m' || mode === '2m' || mode === '3m') {
    // 整天边界:since=起始日 00:00:00(完整自然月天数),until=今日 23:59:59.999("至今"取今天整天,与 custom 止=今天一致)
    const dayStart = new Date(); dayStart.setHours(0, 0, 0, 0);
    const dayEnd = new Date(); dayEnd.setHours(23, 59, 59, 999);
    return { since: minusMonths(dayStart, Number(mode[0])).toISOString(), until: dayEnd.toISOString() };
  }
  if (mode === 'custom') {
    if (!sinceStr || !untilStr) return { error: '请填写自定义起止日期' };
    const s = new Date(sinceStr + 'T00:00:00.000');   // ⚠️ 必须拼时间:裸 date-only 按 UTC 解析差 8h
    const u = new Date(untilStr + 'T23:59:59.999');
    if (isNaN(s.getTime()) || isNaN(u.getTime())) return { error: '日期格式错误' };
    if (s.getTime() > u.getTime()) return { error: '起始日期不能晚于截止日期' };
    const uDay = new Date(untilStr + 'T00:00:00.000');
    const t0 = new Date(); t0.setHours(0, 0, 0, 0);
    if (uDay.getTime() > t0.getTime()) return { error: '截止日期不能晚于今天' };
    return { since: s.toISOString(), until: u.toISOString() };
  }
  return { error: '未知时间范围模式' };
}

function syncChatModeUI() {
  const mode = chatTimeRangeSelect.value;
  const custom = mode === 'custom';
  chatCustomDates.style.display = custom ? 'block' : 'none';
  if (custom && !chatUntilDate.value) {
    const t = new Date();
    chatUntilDate.value = `${t.getFullYear()}-${String(t.getMonth() + 1).padStart(2, '0')}-${String(t.getDate()).padStart(2, '0')}`;
  }
  const timeMode = mode !== 'all';
  document.getElementById('chatLimitInput').disabled = timeMode;  // D1: 时间替代条数
  chatLimitHint.textContent = timeMode ? '(时间模式下忽略)' : '';
}
chatTimeRangeSelect.addEventListener('change', syncChatModeUI);
syncChatModeUI();

// === 后端推送配置 ===
const cfgServerUrl = document.getElementById('cfgServerUrl');
const cfgToken = document.getElementById('cfgToken');
const cfgEnabled = document.getElementById('cfgEnabled');

// 加载现有配置（background 返回 { ok, config }）
chrome.runtime.sendMessage({ type: 'getPushConfig' }, resp => {
  if (chrome.runtime.lastError) { addLog('读取推送配置失败: ' + chrome.runtime.lastError.message, 'error'); return; }
  const cfg = resp && resp.ok ? resp.config : null;
  cfgServerUrl.value = (cfg && cfg.serverUrl) || 'http://219.157.255.213:23010';
  cfgToken.value = (cfg && cfg.token) || '688cbb4b6e880b340b2360559c4ad29d01a39ccbb3c31c4d';
  cfgEnabled.checked = cfg ? !!cfg.enabled : true;  // 默认勾「启用推送」(首次未配置时)
});

// 授权域名（chrome.permissions.request 必须在用户手势内）
document.getElementById('btnAuthorize').addEventListener('click', () => {
  const url = cfgServerUrl.value.trim();
  if (!url) { addLog('请先填写服务器 URL', 'error'); return; }
  let origin;
  try { const u = new URL(url); origin = `${u.origin}/*`; }
  catch { addLog('URL 格式错误', 'error'); return; }
  chrome.permissions.request({ origins: [origin] }, granted => {
    if (chrome.runtime.lastError) { addLog('授权请求失败: ' + chrome.runtime.lastError.message, 'error'); return; }
    if (granted) addLog('已授权 ' + origin, 'success');
    else addLog('授权被拒绝', 'error');
  });
});

// 保存设置
document.getElementById('btnSaveConfig').addEventListener('click', () => {
  const config = {
    serverUrl: cfgServerUrl.value.trim().replace(/\/+$/, ''),  // 去尾斜杠
    token: cfgToken.value.trim(),
    enabled: cfgEnabled.checked,
  };
  chrome.runtime.sendMessage({ type: 'setPushConfig', config }, resp => {
    if (chrome.runtime.lastError) { addLog('保存失败: ' + chrome.runtime.lastError.message, 'error'); return; }
    if (resp && resp.ok) addLog('推送设置已保存' + (config.enabled ? '(已启用)' : ''), 'success');
    else addLog('保存失败', 'error');
  });
});

// === 推送状态显示 ===
const pushStatus = document.getElementById('pushStatus');
function refreshPushStatus() {
  chrome.runtime.sendMessage({ type: 'getPushStats' }, resp => {
    if (chrome.runtime.lastError || !resp || !resp.ok || !resp.stats) {
      pushStatus.style.color = '#999';
      pushStatus.textContent = '推送:未启用';
      return;
    }
    const stats = resp.stats;
    const pending = stats.pending || 0;
    const failed = stats.failed || 0;
    const sent = stats.sent || 0;
    pushStatus.style.color = failed > 0 ? '#f5222d' : '#666';
    pushStatus.textContent = `推送:已推 ${sent} / 待推 ${pending} / 失败 ${failed}`;
  });
}
refreshPushStatus();
const statusTimer = setInterval(refreshPushStatus, 2000);
window.addEventListener('unload', () => clearInterval(statusTimer));

// 失败时点击查看提示
pushStatus.addEventListener('click', () => {
  if (pushStatus.textContent.includes('失败 0')) return;
  alert('有推送失败项。可在扩展后台日志查看错误,或检查后端是否在线。');
});