function switchRecordType(type) {
  currentType = type;
  document.querySelectorAll('.type-btn').forEach((b, i) => {
    b.classList.toggle('active', (type === 'income' && i === 0) || (type === 'expense' && i === 1));
  });
  document.getElementById('incomeCats').style.display = type === 'income' ? 'grid' : 'none';
  document.getElementById('expenseCats').style.display = type === 'expense' ? 'grid' : 'none';
  const firstCat = type === 'income'
    ? document.querySelector('#incomeCats .category-item')
    : document.querySelector('#expenseCats .category-item');
  const catName = type === 'income' ? '接单' : '红包支出';
  selectCategory(firstCat, catName);
}

function selectCategory(el, cat) {
  currentCategory = cat;
  el.parentElement.querySelectorAll('.category-item').forEach(c => c.classList.remove('active'));
  el.classList.add('active');
  renderForm();
}

function renderForm() {
  const form = document.getElementById('recordForm');
  const now = new Date();
  const defaultTime = new Date(now.getTime() - now.getTimezoneOffset() * 60000).toISOString().slice(0, 16);
  let html = '';

  if (currentCategory === '接单') {
    html = `
      <div class="form-group"><label>单数</label><input type="number" id="fQuantity" placeholder="请输入单数" oninput="calcAmount()"></div>
      <div class="form-group"><label>单价（元）</label><input type="number" step="0.01" id="fPrice" placeholder="请输入单价" oninput="calcAmount()"></div>
      <div class="form-group"><label>老板</label><input type="text" id="fBoss" placeholder="请输入老板名称"></div>
      <div class="form-group"><label>一起的陪玩（可选）</label><input type="text" id="fPartner" placeholder="请输入陪玩名称"></div>
      <div class="form-group"><label>时间</label><input type="datetime-local" id="fTime" value="${defaultTime}"></div>
      <div class="computed-amount">预计收入<div class="total" id="calcTotal">0.00</div></div>
      <button class="submit-btn" onclick="submitRecord()">保存记录</button>
    `;
  } else if (currentCategory === '派单') {
    html = `
      <div class="form-group"><label>单数</label><input type="number" id="fQuantity" placeholder="请输入单数" oninput="calcAmount()"></div>
      <div class="form-group"><label>单价（元）</label><input type="number" step="0.01" id="fPrice" placeholder="请输入单价"></div>
      <div class="form-group"><label>返点（元）</label><input type="number" step="0.01" id="fRebate" placeholder="请输入返点" oninput="calcAmount()"></div>
      <div class="form-group"><label>老板</label><input type="text" id="fBoss" placeholder="请输入老板名称"></div>
      <div class="form-group"><label>负责打单的陪玩</label><input type="text" id="fPartner" placeholder="请输入陪玩名称"></div>
      <div class="form-group"><label>时间</label><input type="datetime-local" id="fTime" value="${defaultTime}"></div>
      <div class="computed-amount">预计收入<div class="total" id="calcTotal">0.00</div></div>
      <button class="submit-btn" onclick="submitRecord()">保存记录</button>
    `;
  } else if (currentCategory === '红包收入') {
    html = `
      <div class="form-group"><label>红包金额（元）</label><input type="number" step="0.01" id="fAmount" placeholder="请输入金额"></div>
      <div class="form-group"><label>红包来源</label><input type="text" id="fSource" placeholder="发红包人的名称"></div>
      <div class="form-group"><label>时间</label><input type="datetime-local" id="fTime" value="${defaultTime}"></div>
      <button class="submit-btn" onclick="submitRecord()">保存记录</button>
    `;
  } else if (currentCategory === '红包支出') {
    html = `
      <div class="form-group"><label>红包金额（元）</label><input type="number" step="0.01" id="fAmount" placeholder="请输入金额"></div>
      <div class="form-group"><label>红包目的地</label><input type="text" id="fDest" placeholder="收红包人的名称"></div>
      <div class="form-group"><label>时间</label><input type="datetime-local" id="fTime" value="${defaultTime}"></div>
      <button class="submit-btn" onclick="submitRecord()">保存记录</button>
    `;
  } else if (currentCategory === '其他支出') {
    html = `
      <div class="form-group"><label>金额（元）</label><input type="number" step="0.01" id="fAmount" placeholder="请输入金额"></div>
      <div class="form-group"><label>支出目的地</label><input type="text" id="fDest" placeholder="收款人名称"></div>
      <div class="form-group"><label>备注（可选）</label><input type="text" id="fNote" placeholder="备注信息"></div>
      <div class="form-group"><label>时间</label><input type="datetime-local" id="fTime" value="${defaultTime}"></div>
      <button class="submit-btn" onclick="submitRecord()">保存记录</button>
    `;
  } else if (currentCategory === '奶茶') {
    html = `
      <div class="form-group"><label>金额（元）</label><input type="number" step="0.01" id="fAmount" placeholder="请输入金额"></div>
      <div class="form-group"><label>来源</label><input type="text" id="fSource" placeholder="奶茶来源"></div>
      <div class="form-group"><label>时间</label><input type="datetime-local" id="fTime" value="${defaultTime}"></div>
      <button class="submit-btn" onclick="submitRecord()">保存记录</button>
    `;
  } else if (currentCategory === '比心') {
    html = `
      <div class="form-group"><label>金额（元）</label><input type="number" step="0.01" id="fAmount" placeholder="请输入金额"></div>
      <div class="form-group"><label>用途</label><input type="text" id="fDest" placeholder="请输入用途"></div>
      <div class="form-group"><label>时间</label><input type="datetime-local" id="fTime" value="${defaultTime}"></div>
      <button class="submit-btn" onclick="submitRecord()">保存记录</button>
    `;
  }

  form.innerHTML = html;

  // 绑定自动补全
  if (currentCategory === '接单' || currentCategory === '派单') {
    acSetup('fBoss', 'boss');
    acSetup('fPartner', 'partner');
  } else if (currentCategory === '红包收入' || currentCategory === '奶茶') {
    acSetup('fSource', 'source');
  } else if (currentCategory === '红包支出' || currentCategory === '其他支出') {
    acSetup('fDest', 'destination');
  } else if (currentCategory === '比心') {
    acSetup('fDest', 'destination');
  }
}

function calcAmount() {
  const q = parseFloat(document.getElementById('fQuantity')?.value) || 0;
  let price;
  if (currentCategory === '派单') {
    price = parseFloat(document.getElementById('fRebate')?.value) || 0;
  } else {
    price = parseFloat(document.getElementById('fPrice')?.value) || 0;
  }
  const el = document.getElementById('calcTotal');
  if (el) el.textContent = '' + (q * price).toFixed(2);
}

async function submitRecord() {
  let body = { type: currentType, category: currentCategory };
  const fTime = document.getElementById('fTime')?.value;
  if (fTime) body.created_at = new Date(fTime).toISOString();

  if (currentCategory === '接单' || currentCategory === '派单') {
    const quantity = parseInt(document.getElementById('fQuantity').value);
    const unit_price = parseFloat(document.getElementById('fPrice').value);
    const boss = document.getElementById('fBoss').value.trim();
    const partner = document.getElementById('fPartner')?.value.trim() || '';
    if (currentCategory === '派单') {
      const rebate = parseFloat(document.getElementById('fRebate').value);
      if (!quantity || !unit_price || !rebate || !boss || !partner) { showToast('请填写完整信息（包括负责打单的陪玩）'); return; }
      body.quantity = quantity;
      body.unit_price = unit_price;
      body.rebate = rebate;
      body.amount = quantity * rebate;
      body.partner = partner;
    } else {
      if (!quantity || !unit_price || !boss) { showToast('请填写完整信息'); return; }
      body.quantity = quantity;
      body.unit_price = unit_price;
      body.amount = quantity * unit_price;
    }
    body.boss = boss;
  } else if (currentCategory === '红包收入' || currentCategory === '奶茶') {
    const amount = parseFloat(document.getElementById('fAmount').value);
    const source = document.getElementById('fSource').value.trim();
    if (!amount || !source) { showToast('请填写完整信息'); return; }
    body.amount = amount;
    body.source = source;
    body.boss = source; // 红包来源就是老板，同步设置 boss 字段
  } else if (currentCategory === '红包支出' || currentCategory === '其他支出' || currentCategory === '比心') {
    const amount = parseFloat(document.getElementById('fAmount').value);
    if (!amount) { showToast('请填写完整信息'); return; }
    body.amount = amount;
    if (currentCategory === '比心') {
      const dest = document.getElementById('fDest').value.trim();
      body.destination = dest || '比心';
    } else {
      const dest = document.getElementById('fDest').value.trim();
      if (!dest) { showToast('请填写完整信息'); return; }
      body.destination = dest;
    }
    body.note = document.getElementById('fNote')?.value.trim() || '';
  }

  try {
    const res = await apiFetch(API + '/api/records', {
      method: 'POST',
      body: JSON.stringify(body)
    });
    if (!res.ok) { showToast('保存失败'); return; }
    showToast('保存成功');
    acInvalidateCache();
    setTimeout(() => showPage('homePage'), 1000);
  } catch (e) {
    showToast('网络错误');
  }
}