// 客户订单管理
(() => {
  Router.register('/plan-mgmt/customer-order', async () => {
    // 先返回 HTML
    const html = `
        <div class="page-header">
          <h1>客户订单管理</h1>
          <div class="page-actions">
            <button id="add-order-btn" class="btn btn-primary">新增订单</button>
          </div>
        </div>
        
        <div class="card">
          <div class="card-body">
            <div class="table-container">
              <table class="data-table">
                <thead>
                  <tr>
                    <th>下单时间</th>
                    <th>订单编号</th>
                    <th>客户名称</th>
                    <th>物料</th>
                    <th>订单数量</th>
                    <th>单价</th>
                    <th>操作</th>
                  </tr>
                </thead>
                <tbody id="order-list">
                  <tr>
                    <td colspan="7" class="text-center">加载中...</td>
                  </tr>
                </tbody>
              </table>
            </div>
          </div>
        </div>
        
        <!-- 新增订单弹窗 -->
        <div id="order-modal" class="modal" style="display:none;">
          <div class="modal-content" style="max-width: 900px; max-height: 90vh; overflow-y: auto;">
            <div class="modal-header">
              <h2 id="modal-title">新增订单</h2>
              <button class="modal-close" onclick="window.CustomerOrder.closeModal()">&times;</button>
            </div>
            <div class="modal-body">
              <form id="order-form">
                <!-- 订单基本信息 -->
                <div style="background: var(--surface); padding: 20px; border-radius: 8px; margin-bottom: 20px; border: 1px solid var(--border);">
                  <h3 style="margin: 0 0 15px 0; font-size: 16px; color: var(--text); font-weight: 600;">订单基本信息</h3>
                  <div style="display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 15px;">
                    <div class="field" style="margin: 0;">
                      <label>下单时间 <span style="color: var(--danger);">*</span></label>
                      <input type="date" id="order-date" class="input" required />
                    </div>
                    <div class="field" style="margin: 0;">
                      <label>订单编号 <span style="color: var(--danger);">*</span></label>
                      <input type="text" id="order-no" class="input" placeholder="如：CGDD001695" required />
                    </div>
                    <div class="field" style="margin: 0;">
                      <label>客户名称 <span style="color: var(--danger);">*</span></label>
                      <input type="text" id="customer-name" class="input" placeholder="如：易泰勒" required />
                    </div>
                  </div>
                </div>
                
                <!-- 物料列表 -->
                <div style="background: var(--surface); padding: 20px; border-radius: 8px; border: 1px solid var(--border);">
                  <div style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px;">
                    <h3 style="margin: 0; font-size: 16px; color: var(--text); font-weight: 600;">物料清单</h3>
                    <button type="button" class="btn btn-primary" onclick="window.CustomerOrder.addMaterialRow()">
                      ➕ 添加物料
                    </button>
                  </div>
                  
                  <div id="materials-container">
                    <!-- 物料行将动态添加到这里 -->
                  </div>
                </div>
              </form>
            </div>
            <div class="modal-footer">
              <button class="btn btn-secondary" onclick="window.CustomerOrder.closeModal()">取消</button>
              <button class="btn btn-primary" onclick="window.CustomerOrder.saveOrder()">保存订单</button>
            </div>
          </div>
        </div>
    `;
    
    // DOM 渲染后初始化
    setTimeout(() => {
      const addBtn = document.getElementById('add-order-btn');
      if (addBtn) {
        addBtn.addEventListener('click', () => {
          openModal();
        });
      }
      loadOrders();
    }, 100);
    
    return html;
  });
  
  async function loadOrders() {
      try {
        console.log('开始加载订单列表...');
        const res = await fetch('/api/customer-orders');
        console.log('API响应状态:', res.status);
        const data = await res.json();
        console.log('订单数据:', data);
        
        const tbody = document.getElementById('order-list');
        if (!tbody) {
          console.error('找不到 order-list 元素');
          return;
        }
        
        if (!data.list || data.list.length === 0) {
          tbody.innerHTML = '<tr><td colspan="7" class="text-center">暂无数据</td></tr>';
          return;
        }
        
        tbody.innerHTML = data.list.map(order => `
          <tr>
            <td>${order.order_date || '—'}</td>
            <td>${order.order_no || '—'}</td>
            <td>${order.customer_name || '—'}</td>
            <td style="white-space: pre-wrap;">${order.material || '—'}</td>
            <td>${order.quantity || 0}</td>
            <td>${order.unit_price || 0}</td>
            <td>
              <button class="btn-text" onclick="window.CustomerOrder.editOrder(${order.id})">编辑</button>
              <button class="btn-text btn-danger" onclick="window.CustomerOrder.deleteOrder(${order.id})">删除</button>
            </td>
          </tr>
        `).join('');
        console.log('订单列表加载完成');
      } catch (err) {
        console.error('加载订单失败:', err);
        const tbody = document.getElementById('order-list');
        if (tbody) {
          tbody.innerHTML = '<tr><td colspan="7" class="text-center" style="color: red;">加载失败，请刷新重试</td></tr>';
        }
        API.toast('加载订单失败', 'error');
      }
  }
  
  let materialRowIndex = 0;
  
  function addMaterialRow(material = '', quantity = '', unitPrice = '') {
      const container = document.getElementById('materials-container');
      const index = materialRowIndex++;
      
      const row = document.createElement('div');
      row.className = 'material-row';
      row.id = `material-row-${index}`;
      row.style.cssText = 'display: grid; grid-template-columns: 2fr 1fr 1fr auto; gap: 12px; margin-bottom: 12px; padding: 16px; background: var(--surface-2); border-radius: 8px; border: 1px solid var(--border);';
      
      row.innerHTML = `
        <div class="field" style="margin: 0;">
          <label>物料名称 <span style="color: var(--danger);">*</span></label>
          <input type="text" class="input material-name" placeholder="如：ETAP05 基站-5.0" value="${material}" required />
        </div>
        <div class="field" style="margin: 0;">
          <label>数量 <span style="color: var(--danger);">*</span></label>
          <input type="number" class="input material-quantity" placeholder="数量" value="${quantity}" min="1" required />
        </div>
        <div class="field" style="margin: 0;">
          <label>单价 <span style="color: var(--danger);">*</span></label>
          <input type="number" class="input material-price" placeholder="单价" value="${unitPrice}" step="0.01" min="0" required />
        </div>
        <div style="display: flex; align-items: flex-end; padding-bottom: 2px;">
          <button type="button" class="btn btn-danger" onclick="window.CustomerOrder.removeMaterialRow(${index})" style="white-space: nowrap;">
            🗑️ 删除
          </button>
        </div>
      `;
      
      container.appendChild(row);
  }
  
  function removeMaterialRow(index) {
      const row = document.getElementById(`material-row-${index}`);
      if (row) {
        row.remove();
      }
      
      // 如果没有物料行了，至少保留一行
      const container = document.getElementById('materials-container');
      if (container.children.length === 0) {
        addMaterialRow();
      }
  }
  
  let currentEditId = null;
  
  function openModal(order = null) {
      const modal = document.getElementById('order-modal');
      const title = document.getElementById('modal-title');
      
      // 清空物料列表
      const container = document.getElementById('materials-container');
      container.innerHTML = '';
      materialRowIndex = 0;
      
      if (order) {
        // 编辑模式
        title.textContent = '编辑订单';
        currentEditId = order.id;
        
        document.getElementById('order-date').value = order.order_date || '';
        document.getElementById('order-no').value = order.order_no || '';
        document.getElementById('customer-name').value = order.customer_name || '';
        
        // 添加物料信息
        addMaterialRow(order.material || '', order.quantity || '', order.unit_price || '');
      } else {
        // 新增模式
        title.textContent = '新增订单';
        currentEditId = null;
        document.getElementById('order-form').reset();
        
        // 设置默认日期为今天
        const today = new Date().toISOString().split('T')[0];
        document.getElementById('order-date').value = today;
        
        // 添加一行空物料
        addMaterialRow();
      }
      
      modal.style.display = 'flex';
  }
  
  function closeModal() {
      const modal = document.getElementById('order-modal');
      modal.style.display = 'none';
      document.getElementById('order-form').reset();
      
      // 清空物料列表
      const container = document.getElementById('materials-container');
      if (container) {
        container.innerHTML = '';
      }
      materialRowIndex = 0;
  }
  
  async function saveOrder() {
      const orderDate = document.getElementById('order-date').value.trim();
      const orderNo = document.getElementById('order-no').value.trim();
      const customerName = document.getElementById('customer-name').value.trim();
      
      if (!orderDate || !orderNo || !customerName) {
        API.toast('请填写订单基本信息', 'error');
        return;
      }
      
      // 收集所有物料信息
      const materials = [];
      const materialRows = document.querySelectorAll('.material-row');
      
      if (materialRows.length === 0) {
        API.toast('请至少添加一个物料', 'error');
        return;
      }
      
      for (const row of materialRows) {
        const materialName = row.querySelector('.material-name').value.trim();
        const quantity = parseInt(row.querySelector('.material-quantity').value);
        const unitPrice = parseFloat(row.querySelector('.material-price').value);
        
        if (!materialName || !quantity || isNaN(unitPrice)) {
          API.toast('请填写所有物料信息', 'error');
          return;
        }
        
        if (quantity <= 0) {
          API.toast('物料数量必须大于0', 'error');
          return;
        }
        
        if (unitPrice < 0) {
          API.toast('单价不能为负数', 'error');
          return;
        }
        
        materials.push({
          material: materialName,
          quantity: quantity,
          unit_price: unitPrice
        });
      }
      
      try {
        if (currentEditId) {
          // 编辑模式：只能编辑单条记录
          if (materials.length !== 1) {
            API.toast('编辑模式下只能有一个物料', 'error');
            return;
          }
          
          const mat = materials[0];
          const res = await fetch(`/api/customer-orders/${currentEditId}`, {
            method: 'PUT',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({
              order_date: orderDate,
              order_no: orderNo,
              customer_name: customerName,
              material: mat.material,
              quantity: mat.quantity,
              unit_price: mat.unit_price
            })
          });
          
          const data = await res.json();
          
          if (res.ok && data.ok) {
            API.toast('更新成功', 'success');
            closeModal();
            await loadOrders();
          } else {
            API.toast(data.error || '更新失败', 'error');
          }
        } else {
          // 新增模式：为每个物料创建一条订单记录
          let successCount = 0;
          for (const mat of materials) {
            const res = await fetch('/api/customer-orders', {
              method: 'POST',
              headers: { 'Content-Type': 'application/json' },
              body: JSON.stringify({
                order_date: orderDate,
                order_no: orderNo,
                customer_name: customerName,
                material: mat.material,
                quantity: mat.quantity,
                unit_price: mat.unit_price
              })
            });
            
            const data = await res.json();
            
            if (res.ok && data.ok) {
              successCount++;
            } else {
              console.error('保存物料失败:', mat.material, data.error);
            }
          }
          
          if (successCount === materials.length) {
            API.toast(`订单保存成功，共 ${successCount} 个物料`, 'success');
            closeModal();
            await loadOrders();
          } else if (successCount > 0) {
            API.toast(`部分保存成功（${successCount}/${materials.length}）`, 'warning');
            closeModal();
            await loadOrders();
          } else {
            API.toast('保存失败', 'error');
          }
        }
      } catch (err) {
        console.error('保存订单失败:', err);
        API.toast('保存失败', 'error');
      }
  }
  
  async function deleteOrder(id) {
      if (!confirm('确定要删除这条订单吗？')) {
        return;
      }
      
      try {
        const res = await fetch(`/api/customer-orders/${id}`, {
          method: 'DELETE'
        });
        
        const data = await res.json();
        
        if (res.ok && data.ok) {
          API.toast('删除成功', 'success');
          await loadOrders();
        } else {
          API.toast(data.error || '删除失败', 'error');
        }
      } catch (err) {
        console.error('删除订单失败:', err);
        API.toast('删除失败', 'error');
      }
  }
  
  async function editOrder(id) {
      try {
        const res = await fetch('/api/customer-orders');
        const data = await res.json();
        
        const order = data.list.find(o => o.id === id);
        if (!order) {
          API.toast('订单不存在', 'error');
          return;
        }
        
        openModal(order);
      } catch (err) {
        console.error('加载订单失败:', err);
        API.toast('加载失败', 'error');
      }
  }
  
  // 暴露给全局
  window.CustomerOrder = {
    openModal,
    closeModal,
    saveOrder,
    editOrder,
    deleteOrder,
    addMaterialRow,
    removeMaterialRow
  };
})();