async function loadStats() {
  try {
    // 并行加载所有数据
    const [monthlyRes, bossRankRes, partnerRankRes, weeklyRes] = await Promise.all([
      fetch(API + '/api/stats/monthly?year=' + currentYear + '&month=' + currentMonth, { headers: headers() }),
      fetch(API + '/api/stats/boss-ranking/preview?year=' + currentYear + '&month=' + currentMonth, { headers: headers() }),
      fetch(API + '/api/stats/partner-ranking/preview?year=' + currentYear + '&month=' + currentMonth, { headers: headers() }),
      fetch(API + '/api/stats/daily-income', { headers: headers() })
    ]);

    if (monthlyRes.ok) {
      const s = await monthlyRes.json();
      document.getElementById('takeCount').textContent = s.take_order_count;
      document.getElementById('dispatchCount').textContent = s.dispatch_order_count;
      document.getElementById('takeIncome').textContent = '' + s.take_order_income.toFixed(2);
      document.getElementById('dispatchIncome').textContent = '' + s.dispatch_order_income.toFixed(2);
      document.getElementById('redEnvelopeCount').textContent = s.redEnvelope_count || 0;
      document.getElementById('redEnvelopeIncome').textContent = '' + (s.redEnvelope_income || 0).toFixed(2);
      document.getElementById('milkTeaCount').textContent = s.milkTea_count || 0;
      document.getElementById('milkTeaIncome').textContent = '' + (s.milkTea_income || 0).toFixed(2);
      document.getElementById('totalIncome').textContent = '' + s.total_income.toFixed(2);
      document.getElementById('totalExpense').textContent = '' + s.total_expense.toFixed(2);
      document.getElementById('netIncome').textContent = '' + (s.total_income - s.total_expense).toFixed(2);
    }

    if (bossRankRes.ok) {
      const data = await bossRankRes.json();
      renderBossRankingPreview(data || []);
    }

    if (partnerRankRes.ok) {
      const data = await partnerRankRes.json();
      renderPartnerRankingPreview(data || []);
    }

    if (weeklyRes.ok) {
      const days = await weeklyRes.json();
      renderWeeklyChart(days);
    }
  } catch (e) { console.error(e); }
}

async function loadWeeklyChart() {
  try {
    const res = await fetch(API + '/api/stats/daily-income', { headers: headers() });
    if (!res.ok) return;
    const days = await res.json();
    renderWeeklyChart(days);
  } catch (e) { console.error(e); }
}

function renderWeeklyChart(days) {
  const container = document.getElementById('weeklyChartBars');
  if (!days || days.length === 0) {
    container.innerHTML = '<div class="ranking-empty">暂无数据</div>';
    return;
  }
  const max = Math.max(...days.map(d => d.income), 1);
  container.innerHTML = days.map(d => {
    const pct = Math.max((d.income / max) * 100, 3);
    const label = d.date.slice(5).replace('-', '/');
    const amount = d.income > 0 ? '' + d.income.toFixed(0) : '0';
    return `<div class="weekly-bar-col" onclick="openDailyDetail('${d.date}')">
      <span class="weekly-bar-amount">${amount}</span>
      <div class="weekly-bar" style="height:${pct}%"></div>
      <span class="weekly-bar-date">${label}</span>
    </div>`;
  }).join('');
}

let currentDailyDate = '';

async function openDailyDetail(date) {
  currentDailyDate = date;
  document.getElementById('dailyDetailTitle').textContent = date + ' 收入';
  document.getElementById('dailyNavDate').textContent = date;
  document.getElementById('dailySummary').innerHTML = '<div class="ranking-empty">加载中...</div>';
  document.getElementById('dailyDetailList').innerHTML = '';
  if (!document.getElementById('dailyDetailPage').classList.contains('active')) {
    showPage('dailyDetailPage');
  }
  try {
    const res = await fetch(API + '/api/stats/daily-detail?date=' + date, { headers: headers() });
    if (!res.ok) return;
    const data = await res.json();
    document.getElementById('dailySummary').innerHTML = `
      <div class="daily-summary-amount">${data.total_income.toFixed(2)}</div>
      <div class="daily-summary-label">当日总收入</div>
    `;
    const container = document.getElementById('dailyDetailList');
    if (data.records.length === 0) {
      container.innerHTML = '<div class="ranking-empty">当日暂无收入记录</div>';
      return;
    }
    container.innerHTML = data.records.map(r => {
      const time = formatLocalTime(r.created_at);
      const displayCategory = r.category === '红包收入' ? '红包' : (r.category || '-');
      return `<div class="order-item" onclick='openEditModal(${JSON.stringify(r).replace(/'/g, "&#39;")})'>
        <div class="order-item-top">
          <span class="order-item-boss">${displayCategory}${r.boss ? ' · ' + r.boss : ''}</span>
          <span class="order-item-amount">${(r.amount || 0).toFixed(2)}</span>
        </div>
        <div class="order-item-bottom">
          <span>${r.quantity ? r.quantity + '单 × ' + (r.category === '派单' ? (r.rebate || r.amount / r.quantity).toFixed(2) + '（单价' + (r.unit_price || 0).toFixed(2) + '）' : (r.unit_price || 0).toFixed(2)) : (r.source || '')}</span>
          <span>${time}${r.partner ? ' · ' + r.partner : ''}</span>
        </div>
      </div>`;
    }).join('');
  } catch (e) { console.error(e); }
}

function switchDailyDate(offset) {
  const d = new Date(currentDailyDate);
  d.setDate(d.getDate() + offset);
  openDailyDetail(formatLocalDate(d));
}

let monthlyDetailYear, monthlyDetailMonth;

function openMonthlyDetail(type) {
  monthlyDetailYear = currentYear;
  monthlyDetailMonth = currentMonth;
  loadMonthlyDetail(type);
}

function switchMonthlyDetail(type, offset) {
  monthlyDetailMonth += offset;
  if (monthlyDetailMonth > 12) { monthlyDetailMonth = 1; monthlyDetailYear++; }
  if (monthlyDetailMonth < 1) { monthlyDetailMonth = 12; monthlyDetailYear--; }
  loadMonthlyDetail(type);
}

function openYearlyIncome() {
  loadYearlyNetIncome();
}

async function loadYearlyNetIncome() {
  document.getElementById('yearlyNetIncomeSummary').innerHTML = '<div class="ranking-empty">加载中...</div>';
  document.getElementById('yearlyNetIncomeList').innerHTML = '';

  if (!document.getElementById('yearlyNetIncomePage').classList.contains('active')) {
    showPage('yearlyNetIncomePage');
  }

  try {
    const res = await fetch(API + '/api/stats/yearly-net-income', { headers: headers() });
    if (!res.ok) return;
    const data = await res.json();

    const grandNetIncome = (data.grandTotal.total_income || 0) - (data.grandTotal.total_expense || 0);
    const grandColor = grandNetIncome >= 0 ? '#27ae60' : '#e74c3c';
    document.getElementById('yearlyNetIncomeSummary').innerHTML = `
      <div class="daily-summary-amount" style="color:${grandColor}">${grandNetIncome.toFixed(2)}</div>
      <div class="daily-summary-label">累计净收入</div>
    `;

    const container = document.getElementById('yearlyNetIncomeList');
    const monthNames = ['1月', '2月', '3月', '4月', '5月', '6月', '7月', '8月', '9月', '10月', '11月', '12月'];

    if (data.yearlyStats.length === 0) {
      container.innerHTML = '<div class="ranking-empty">暂无数据</div>';
      return;
    }

    container.innerHTML = data.yearlyStats.map(y => {
      const year = y.year;
      const income = y.total_income || 0;
      const expense = y.total_expense || 0;
      const net = income - expense;
      const netColor = net >= 0 ? '#27ae60' : '#e74c3c';

      const monthlyData = data.monthlyData[year] || [];
      const monthlyHtml = monthlyData.map(m => {
        const mIncome = m.total_income || 0;
        const mExpense = m.total_expense || 0;
        const mNet = mIncome - mExpense;
        const mColor = mNet >= 0 ? '#27ae60' : '#e74c3c';
        return `<div style="display:flex;justify-content:space-between;padding:12px 16px;border-bottom:1px solid #f0f0f0;font-size:14px;">
          <span>${monthNames[parseInt(m.month) - 1]}</span>
          <span style="color:${mColor}">${mNet.toFixed(2)}</span>
        </div>`;
      }).join('');

      return `<div class="order-item" style="padding:0;">
        <div class="order-item-top" style="padding:12px;">
          <span class="order-item-boss">${year}年</span>
          <span class="order-item-amount" style="color:${netColor}">${net.toFixed(2)}</span>
        </div>
        <div class="order-item-bottom" style="padding:0 12px 12px;">
          <span>收入: ${income.toFixed(2)} | 支出: ${expense.toFixed(2)}</span>
        </div>
        <div style="border-top:1px solid #eee;">${monthlyHtml}</div>
      </div>`;
    }).join('');
  } catch (e) { console.error(e); }
}

async function loadMonthlyDetail(type) {
  const pageId = type === 'income' ? 'monthlyIncomeDetailPage' : 'monthlyExpenseDetailPage';
  const titleId = type === 'income' ? 'monthlyIncomeTitle' : 'monthlyExpenseTitle';
  const navId = type === 'income' ? 'monthlyIncomeNav' : 'monthlyExpenseNav';
  const summaryId = type === 'income' ? 'monthlyIncomeSummary' : 'monthlyExpenseSummary';
  const listId = type === 'income' ? 'monthlyIncomeList' : 'monthlyExpenseList';
  const label = type === 'income' ? '收入' : '支出';

  document.getElementById(titleId).textContent = `${monthlyDetailYear}年${monthlyDetailMonth}月${label}`;
  document.getElementById(navId).textContent = `${monthlyDetailYear}年${monthlyDetailMonth}月`;
  document.getElementById(summaryId).innerHTML = '<div class="ranking-empty">加载中...</div>';
  document.getElementById(listId).innerHTML = '';

  if (!document.getElementById(pageId).classList.contains('active')) {
    showPage(pageId);
  }

  try {
    const res = await fetch(API + '/api/stats/monthly-records?type=' + type + '&year=' + monthlyDetailYear + '&month=' + monthlyDetailMonth, { headers: headers() });
    if (!res.ok) return;
    const data = await res.json();
    const color = type === 'income' ? '#27ae60' : '#e74c3c';
    document.getElementById(summaryId).innerHTML = `
      <div class="daily-summary-amount" style="color:${color}">${data.total.toFixed(2)}</div>
      <div class="daily-summary-label">当月总${label}</div>
    `;
    const container = document.getElementById(listId);
    if (data.records.length === 0) {
      container.innerHTML = '<div class="ranking-empty">当月暂无' + label + '记录</div>';
      return;
    }
    const grouped = {};
    data.records.forEach(r => {
      const date = formatLocalDate(r.created_at);
      if (!grouped[date]) grouped[date] = [];
      grouped[date].push(r);
    });
    let html = '';
    for (const [date, records] of Object.entries(grouped)) {
      html += `<div class="order-date-group"><div class="order-date-label">${date}</div>`;
      records.forEach(r => {
        const time = formatLocalTime(r.created_at);
        const displayCategory = r.category === '红包收入' ? '红包' : (r.category || '-');
        html += `<div class="order-item" onclick='openEditModal(${JSON.stringify(r).replace(/'/g, "&#39;")})'>
          <div class="order-item-top">
            <span class="order-item-boss">${displayCategory}${r.boss ? ' · ' + r.boss : r.source ? ' · ' + r.source : r.destination ? ' · ' + r.destination : ''}</span>
            <span class="order-item-amount">${type === 'expense' ? '-' : ''}${(r.amount || 0).toFixed(2)}</span>
          </div>
          <div class="order-item-bottom">
            <span>${r.quantity ? r.quantity + '单 × ' + (r.category === '派单' ? (r.rebate || r.amount / r.quantity).toFixed(2) + '（单价' + (r.unit_price || 0).toFixed(2) + '）' : (r.unit_price || 0).toFixed(2)) : (r.note || '')}</span>
            <span>${time}${r.partner ? ' · ' + r.partner : ''}</span>
          </div>
        </div>`;
      });
      html += '</div>';
    }
    container.innerHTML = html;
  } catch (e) { console.error(e); }
}

async function loadBossRankingPreview() {
  try {
    const res = await fetch(API + '/api/stats/boss-ranking/preview?year=' + currentYear + '&month=' + currentMonth, { headers: headers() });
    if (!res.ok) return;
    const rows = await res.json();
    renderBossRankingPreview(rows);
  } catch (e) { console.error(e); }
}

function renderBossRankingPreview(rows) {
  const container = document.getElementById('rankingPreviewList');
  if (!rows || rows.length === 0) {
    container.innerHTML = '<div class="ranking-empty">暂无数据</div>';
    return;
  }
  const max = Math.max(...rows.map(r => r.total_income), 1);
  container.innerHTML = rows.map((r, i) => {
    const pct = Math.max((r.total_income / max) * 100, 2);
    return `<div class="hbar-row" onclick="openBossDetail('${r.boss.replace(/'/g, "\\'")}', 'homePage')">
      <div class="hbar-index ${i < 3 ? 'top' : ''}">${i + 1}</div>
      <div class="hbar-label" title="${r.boss}">${r.boss}</div>
      <div class="hbar-track"><div class="hbar-fill" style="width:${pct}%"></div></div>
      <div class="hbar-value">${r.total_income.toFixed(2)}</div>
    </div>`;
  }).join('');
}

let currentBossName = '';
let bossDetailFrom = 'homePage';

function openBossDetail(boss, from) {
  currentBossName = boss;
  bossDetailFrom = from || 'homePage';
  loadBossDetail();
}

function bossDetailGoBack() {
  showPage(bossDetailFrom);
}

async function loadBossDetail() {
  document.getElementById('bossDetailTitle').textContent = currentBossName + ' 交易记录';
  document.getElementById('bossDetailSummary').innerHTML = '<div class="ranking-empty">加载中...</div>';
  document.getElementById('bossDetailList').innerHTML = '';
  showPage('bossDetailPage');

  try {
    const res = await fetch(API + '/api/stats/boss-records?boss=' + encodeURIComponent(currentBossName), { headers: headers() });
    if (!res.ok) return;
    const data = await res.json();
    document.getElementById('bossDetailSummary').innerHTML = `
      <div style="display:flex;justify-content:space-around;flex-wrap:wrap;gap:8px">
        <div style="text-align:center">
          <div class="daily-summary-amount" style="font-size:24px;color:#e74c3c">${data.boss_total_expense.toFixed(2)}</div>
          <div class="daily-summary-label">老板总支出</div>
        </div>
        <div style="text-align:center">
          <div class="daily-summary-amount" style="font-size:24px;color:#27ae60">${data.my_income.toFixed(2)}</div>
          <div class="daily-summary-label">我的总收入</div>
        </div>
      </div>
    `;
    const container = document.getElementById('bossDetailList');
    if (data.records.length === 0) {
      container.innerHTML = '<div class="ranking-empty">暂无交易记录</div>';
      return;
    }
    const grouped = {};
    data.records.forEach(r => {
      const d = new Date(r.created_at);
      const key = d.getFullYear() + '-' + String(d.getMonth() + 1).padStart(2, '0');
      if (!grouped[key]) grouped[key] = { records: [], total: 0 };
      grouped[key].records.push(r);
      grouped[key].total += r.amount || 0;
    });
    let html = '';
    for (const [month, group] of Object.entries(grouped)) {
      html += `<div class="order-date-group"><div class="order-date-label">${month}　收入 ${group.total.toFixed(2)}</div>`;
      group.records.forEach(r => {
        const time = formatLocalDate(r.created_at) + ' ' + formatLocalTime(r.created_at);
        const displayCategory = r.category === '红包收入' ? '红包' : r.category;
        html += `<div class="order-item" onclick='openEditModal(${JSON.stringify(r).replace(/'/g, "&#39;")})'>
          <div class="order-item-top">
            <span class="order-item-boss">${displayCategory}${r.partner ? ' · ' + r.partner : ''}</span>
            <span class="order-item-amount">${(r.amount || 0).toFixed(2)}</span>
          </div>
          <div class="order-item-bottom">
            <span>${r.quantity ? r.quantity + '单 × ' + (r.category === '派单' ? (r.rebate || r.amount / r.quantity).toFixed(2) + '（单价' + (r.unit_price || 0).toFixed(2) + '）' : (r.unit_price || 0).toFixed(2)) : (r.note || '')}</span>
            <span>${time}</span>
          </div>
        </div>`;
      });
      html += '</div>';
    }
    container.innerHTML = html;
  } catch (e) { console.error(e); }
}

async function loadPartnerRankingPreview() {
  try {
    const res = await fetch(API + '/api/stats/partner-ranking/preview?year=' + currentYear + '&month=' + currentMonth, { headers: headers() });
    if (!res.ok) return;
    const rows = await res.json();
    renderPartnerRankingPreview(rows);
  } catch (e) { console.error(e); }
}

function renderPartnerRankingPreview(rows) {
  const container = document.getElementById('partnerRankingPreviewList');
  if (!rows || rows.length === 0) {
    container.innerHTML = '<div class="ranking-empty">暂无数据</div>';
    return;
  }
  const max = Math.max(...rows.map(r => r.dispatch_count), 1);
  container.innerHTML = rows.map((r, i) => {
    const pct = Math.max((r.dispatch_count / max) * 100, 2);
    return `<div class="hbar-row" onclick="openPartnerDetail('${r.partner.replace(/'/g, "\\'")}', 'homePage')">
      <div class="hbar-index ${i < 3 ? 'top' : ''}">${i + 1}</div>
      <div class="hbar-label" title="${r.partner}">${r.partner}</div>
      <div class="hbar-track"><div class="hbar-fill" style="width:${pct}%"></div></div>
      <div class="hbar-value">${r.dispatch_count}单</div>
    </div>`;
  }).join('');
}

function openPartnerRankingPage() {
  const now = new Date();
  const y = now.getFullYear();
  const m = String(now.getMonth() + 1).padStart(2, '0');
  document.getElementById('partnerRankStartDate').value = y + '-' + m + '-01';
  document.getElementById('partnerRankEndDate').value = y + '-' + m + '-' + String(now.getDate()).padStart(2, '0');
  showPage('partnerRankingPage');
  loadPartnerRankingDetail();
}

async function loadPartnerRankingDetail() {
  const startDate = document.getElementById('partnerRankStartDate').value;
  const endDate = document.getElementById('partnerRankEndDate').value;
  let url = API + '/api/stats/partner-ranking';
  const params = [];
  if (startDate) params.push('startDate=' + startDate);
  if (endDate) {
    const d = new Date(endDate);
    d.setDate(d.getDate() + 1);
    params.push('endDate=' + formatLocalDate(d));
  }
  if (params.length) url += '?' + params.join('&');
  console.log('partner-ranking url:', url);
  try {
    const res = await fetch(url, { headers: headers() });
    console.log('partner-ranking res.ok:', res.ok);
    if (!res.ok) return;
    const data = await res.json();
    console.log('partner-ranking data:', data);
    const rows = data.rows || [];
    console.log('rows:', rows);
    const summary = data.summary || { total_partner_income: 0, total_rebate_income: 0, total_milkTea_income: 0 };

    // 计算派单总数（从列表）
    const totalDispatch = rows.reduce((sum, r) => sum + (r.dispatch_count || 0), 0);
    console.log('totalDispatch:', totalDispatch);

    // 更新统计卡片
    document.getElementById('partnerTotalDispatchCount').textContent = totalDispatch;
    document.getElementById('totalPartnerIncome').textContent = (summary.total_partner_income || 0).toFixed(2);
    document.getElementById('totalRebateIncome').textContent = summary.total_rebate_income.toFixed(2);
    document.getElementById('totalMilkTeaIncome').textContent = (summary.total_milkTea_income || 0).toFixed(2);

    const container = document.getElementById('partnerRankingDetailList');
    if (rows.length === 0) {
      container.innerHTML = '<div class="ranking-empty">暂无数据</div>';
      return;
    }
    const max = Math.max(...rows.map(r => r.dispatch_count), 1);
    container.innerHTML = rows.map((r, i) => {
      const pct = Math.max((r.dispatch_count / max) * 100, 2);
      return `<div class="hbar-row" onclick="openPartnerDetail('${r.partner.replace(/'/g, "\\'")}', 'partnerRankingPage')">
        <div class="hbar-index ${i < 3 ? 'top' : ''}">${i + 1}</div>
        <div class="hbar-label" title="${r.partner}">${r.partner}</div>
        <div class="hbar-track"><div class="hbar-fill" style="width:${pct}%"></div></div>
        <div class="hbar-value">${r.dispatch_count}单</div>
      </div>`;
    }).join('');
  } catch (e) { console.error(e); }
}

let currentPartnerName = '';
let partnerDetailFrom = 'homePage';

function openPartnerDetail(partner, from) {
  currentPartnerName = partner;
  partnerDetailFrom = from || 'homePage';
  loadPartnerDetail();
}

function partnerDetailGoBack() {
  showPage(partnerDetailFrom);
}

async function loadPartnerDetail() {
  document.getElementById('partnerDetailTitle').textContent = currentPartnerName + ' 交易记录';
  document.getElementById('partnerDetailSummary').innerHTML = '<div class="ranking-empty">加载中...</div>';
  document.getElementById('partnerDetailList').innerHTML = '';
  showPage('partnerDetailPage');

  try {
    const res = await fetch(API + '/api/stats/partner-records?partner=' + encodeURIComponent(currentPartnerName), { headers: headers() });
    if (!res.ok) return;
    const data = await res.json();
    document.getElementById('partnerDetailSummary').innerHTML = `
      <div style="display:flex;justify-content:space-around;flex-wrap:wrap;gap:8px">
        <div style="text-align:center">
          <div class="daily-summary-amount" style="font-size:24px">${data.dispatch_count}</div>
          <div class="daily-summary-label">总派单数</div>
        </div>
        <div style="text-align:center">
          <div class="daily-summary-amount" style="font-size:24px;color:#e67e22">${data.spread_income.toFixed(2)}</div>
          <div class="daily-summary-label">陪玩总收入</div>
        </div>
        <div style="text-align:center">
          <div class="daily-summary-amount" style="font-size:24px;color:#27ae60">${data.rebate_income.toFixed(2)}</div>
          <div class="daily-summary-label">总返点收入</div>
        </div>
        <div style="text-align:center">
          <div class="daily-summary-amount" style="font-size:24px;color:#3498db">${data.other_income.toFixed(2)}</div>
          <div class="daily-summary-label">红包及其他</div>
        </div>
      </div>
    `;
    const container = document.getElementById('partnerDetailList');
    if (data.records.length === 0) {
      container.innerHTML = '<div class="ranking-empty">暂无交易记录</div>';
      return;
    }
    const grouped = {};
    data.records.forEach(r => {
      const d = new Date(r.created_at);
      const key = d.getFullYear() + '-' + String(d.getMonth() + 1).padStart(2, '0');
      if (!grouped[key]) grouped[key] = { records: [], total: 0 };
      grouped[key].records.push(r);
      grouped[key].total += r.amount || 0;
    });
    let html = '';
    for (const [month, group] of Object.entries(grouped)) {
      html += `<div class="order-date-group"><div class="order-date-label">${month}　收入 ${group.total.toFixed(2)}</div>`;
      group.records.forEach(r => {
        const time = formatLocalDate(r.created_at) + ' ' + formatLocalTime(r.created_at);
        const displayCategory = r.category === '红包收入' ? '红包' : r.category;
        html += `<div class="order-item" onclick='openEditModal(${JSON.stringify(r).replace(/'/g, "&#39;")})'>
          <div class="order-item-top">
            <span class="order-item-boss">${displayCategory}${r.boss ? ' · ' + r.boss : ''}</span>
            <span class="order-item-amount">${(r.amount || 0).toFixed(2)}</span>
          </div>
          <div class="order-item-bottom">
            <span>${r.quantity ? r.quantity + '单 × ' + (r.category === '派单' ? (r.rebate || r.amount / r.quantity).toFixed(2) + '（单价' + (r.unit_price || 0).toFixed(2) + '）' : (r.unit_price || 0).toFixed(2)) : (r.source || '')}</span>
            <span>${time}</span>
          </div>
        </div>`;
      });
      html += '</div>';
    }
    container.innerHTML = html;
  } catch (e) { console.error(e); }
}