/* 系统设置页 */
let curSettings = null;

async function loadSettings() {
  try {
    curSettings = await api('/api/settings');
    const mail = curSettings.mail, mono = curSettings.monitor, llm = curSettings.llm;
    $('#emailEnabled').checked = !!mail.email_enabled;
    $('#smtpHost').value = mail.smtp_host;
    $('#smtpPort').value = mail.smtp_port;
    $('#smtpMode').value = mail.smtp_mode || 'plain';
    $('#smtpUser').value = mail.smtp_user;
    $('#smtpPass').value = mail.smtp_pass;
    $('#senderName').value = mail.sender_name;
    $('#emailTo').value = mail.email_to;
    $('#llmBaseUrl').value = llm.base_url;
    $('#llmApiKey').value = llm.api_key;
    $('#llmModel').value = llm.model;
    $('#monitorEnabled').checked = !!mono.enabled;
    $('#monitorInterval').value = mono.interval_min;
    $('#monitorImportance').value = mono.importance_threshold;
    $('#monitorSentiment').value = mono.sentiment_weight;
    $('#monitorKeywords').value = (mono.keywords || []).join(',');
    // 分类勾选
    const cats = mono.categories || [];
    $$('#monitorCats input').forEach(c => c.checked = cats.includes(c.value));
    renderState(curSettings.state);
    // 持仓跟踪
    const tr = curSettings.tracking || {};
    $('#trackingEnabled').checked = !!tr.enabled;
    $('#trackingInterval').value = tr.interval_min;
    $('#trackingImpact').value = tr.impact_threshold;
    $('#trackingNotify').checked = !!tr.notify;
    renderTrackingState(tr);
    loadLog();
  } catch (e) {
    toast('设置加载失败');
  }
}

function renderState(state) {
  $('#monitorState').innerHTML = `
    <div class="mini-stat"><div class="ms-label">已处理新闻水位</div><div class="ms-value num">#${state.last_news_id || 0}</div></div>
    <div class="mini-stat"><div class="ms-label">上次扫描</div><div class="ms-value">${state.last_scan || '—'}</div></div>
    <div class="mini-stat"><div class="ms-label">上次通知</div><div class="ms-value num">${state.last_sent_count || 0} 条</div></div>`;
}

function renderTrackingState(tr) {
  $('#trackingState').innerHTML = `
    <div class="mini-stat"><div class="ms-label">上次运行</div><div class="ms-value">${tr.last_run || '—'}</div></div>
    <div class="mini-stat"><div class="ms-label">最近跟踪</div><div class="ms-value">${tr.last_stock || '—'}</div></div>
    <div class="mini-stat"><div class="ms-label">最近告警影响度</div><div class="ms-value num">${tr.last_alert ? tr.last_alert + '/100' : '—'}</div></div>`;
}

function collectMail() {
  return {
    smtp_host: $('#smtpHost').value.trim(), smtp_port: $('#smtpPort').value,
    smtp_mode: $('#smtpMode').value, smtp_user: $('#smtpUser').value.trim(),
    smtp_pass: $('#smtpPass').value, sender_name: $('#senderName').value.trim(),
    email_to: $('#emailTo').value.trim(), email_enabled: $('#emailEnabled').checked
  };
}

function collectMonitor() {
  const cats = $$('#monitorCats input:checked').map(c => c.value);
  return {
    monitor_enabled: $('#monitorEnabled').checked,
    monitor_interval: $('#monitorInterval').value,
    monitor_importance: $('#monitorImportance').value,
    monitor_sentiment: $('#monitorSentiment').value,
    monitor_categories: cats.join(','),
    monitor_keywords: $('#monitorKeywords').value
  };
}

async function save(which) {
  try {
    const body = {};
    if (which === 'mail') body.mail = collectMail();
    if (which === 'llm') body.llm = {
      llm_base_url: $('#llmBaseUrl').value.trim(),
      llm_api_key: $('#llmApiKey').value.trim(),
      llm_model: $('#llmModel').value.trim()
    };
    if (which === 'monitor') body.monitor = collectMonitor();
    if (which === 'tracking') body.tracking = {
      tracking_enabled: $('#trackingEnabled').checked,
      tracking_interval: $('#trackingInterval').value,
      tracking_impact_threshold: $('#trackingImpact').value,
      tracking_notify: $('#trackingNotify').checked
    };
    const r = await api('/api/settings', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(body) });
    toast(r.msg || '已保存');
  } catch (e) { toast('保存失败：' + e.message); }
}

async function testEmail() {
  const btn = event.target; btn.disabled = true; btn.textContent = '发送中…';
  try {
    await api('/api/settings', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ mail: collectMail() }) });
    const r = await api('/api/settings/test-email', { method: 'POST' });
    toast(r.msg || '发送成功');
  } catch (e) { toast('发送失败：' + e.message); }
  btn.disabled = false; btn.textContent = '📨 发送测试邮件';
}

async function testLlm() {
  const btn = event.target; btn.disabled = true; btn.textContent = '测试中…';
  try {
    await api('/api/settings', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ llm: {
      llm_base_url: $('#llmBaseUrl').value.trim(), llm_api_key: $('#llmApiKey').value.trim(), llm_model: $('#llmModel').value.trim()
    } }) });
    const r = await api('/api/settings/test-llm', { method: 'POST' });
    toast(r.msg || '连接正常');
  } catch (e) { toast('连接失败：' + e.message); }
  btn.disabled = false; btn.textContent = '🔌 测试连接';
}

async function scanNow() {
  const btn = event.target; btn.disabled = true;
  try {
    const r = await api('/api/monitor/scan', { method: 'POST' });
    toast(`扫描完成：检查 ${r.checked} 条，重要 ${r.important} 条，发送 ${r.sent} 条` + (r.error ? '（' + r.error + '）' : ''));
    loadSettings();
  } catch (e) { toast('扫描失败：' + e.message); }
  btn.disabled = false;
}

async function loadLog() {
  try {
    const d = await api('/api/monitor/log');
    const items = d.items || [];
    if (!items.length) return;
    $('#logTb').innerHTML = items.map(n => `
      <tr>
        <td style="color:var(--muted)">${n.sent_at}</td>
        <td style="max-width:300px;white-space:normal">${escapeHtml(n.title)}</td>
        <td><span class="cat-tag ${n.category}">${n.category}</span></td>
        <td class="num ${pctClass(n.sentiment)}">${n.sentiment > 0 ? '利好' : n.sentiment < 0 ? '利空' : '中性'} (${Number(n.sentiment).toFixed(2)})</td>
        <td class="num"><b>${n.importance}</b></td>
        <td><span class="tag ${n.status === 'sent' ? 'tag-推荐' : n.status === 'skipped' ? 'tag-关注' : 'tag-负'}">${n.status}</span></td>
      </tr>`).join('');
  } catch (e) {}
}

loadSettings();