import React, { useState, useEffect } from 'react';
import { Table, Button, Modal, Form, Input, Select, DatePicker, message, Card, Space, InputNumber, Switch, Upload, Progress, Checkbox } from 'antd';
import { PlusOutlined, EditOutlined, DeleteOutlined, SearchOutlined, UploadOutlined, DownloadOutlined, SettingOutlined } from '@ant-design/icons';
import axios from 'axios';
import dayjs from 'dayjs';

const { Option } = Select;
const { RangePicker } = DatePicker;

function DeviceManagement() {
  const [devices, setDevices] = useState([]);
  const [racks, setRacks] = useState([]);
  const [loading, setLoading] = useState(true);
  const [modalVisible, setModalVisible] = useState(false);
  const [editingDevice, setEditingDevice] = useState(null);
  const [form] = Form.useForm();
  // 搜索和筛选状态
  const [keyword, setKeyword] = useState('');
  const [status, setStatus] = useState('all');
  const [type, setType] = useState('all');
  const [searchForm] = Form.useForm();
  // 分页状态
  const [pagination, setPagination] = useState({ 
    current: 1, 
    pageSize: 10, 
    total: 0,
    pageSizeOptions: ['10', '20', '30', '50', '100'],
    showSizeChanger: true,
    showTotal: (total) => `共 ${total} 条记录`
  });
  // 自定义字段状态
  const [customFieldName, setCustomFieldName] = useState('');
  const [customFieldValue, setCustomFieldValue] = useState('');
  // 设备字段配置
  const [deviceFields, setDeviceFields] = useState([]);
  const [loadingFields, setLoadingFields] = useState(true);
  // 导入导出状态
  const [importModalVisible, setImportModalVisible] = useState(false);
  const [importProgress, setImportProgress] = useState(0);
  const [isImporting, setIsImporting] = useState(false);
  const [importResult, setImportResult] = useState(null);
  const [selectedDevices, setSelectedDevices] = useState([]);
  const [selectAll, setSelectAll] = useState(false);
  // 字段配置模态框
  const [fieldConfigModalVisible, setFieldConfigModalVisible] = useState(false);

  // 获取所有设备（支持搜索、筛选和分页）
  const fetchDevices = async (page = 1, pageSize = 10, searchParams = {}) => {
    try {
      setLoading(true);
      
      // 构建查询参数
      const params = {
        page,
        pageSize,
        keyword: searchParams.keyword || keyword,
        status: searchParams.status || status,
        type: searchParams.type || type
      };
      
      const response = await axios.get('/api/devices', { params });
      const { devices, total } = response.data;
      
      // 将customFields中的字段值映射为设备对象的直接属性
      const processedDevices = devices.map(device => {
        const deviceWithFields = { ...device };
        
        // 如果有自定义字段，将其展开为设备对象的直接属性
        if (device.customFields && typeof device.customFields === 'object') {
          Object.entries(device.customFields).forEach(([fieldName, value]) => {
            deviceWithFields[fieldName] = value;
          });
        }
        
        return deviceWithFields;
      });
      
      setDevices(processedDevices);
      setPagination(prev => ({ ...prev, current: page, pageSize, total }));
    } catch (error) {
      message.error('获取设备列表失败');
      console.error('获取设备列表失败:', error);
    } finally {
      setLoading(false);
    }
  };

  // 获取设备字段配置
  const fetchDeviceFields = async () => {
    try {
      setLoadingFields(true);
      const response = await axios.get('/api/deviceFields');
      // 按顺序排序字段
      const sortedFields = response.data.sort((a, b) => a.order - b.order);
      setDeviceFields(sortedFields);
    } catch (error) {
      message.error('获取字段配置失败');
      console.error('获取字段配置失败:', error);
      // 如果获取失败，使用默认字段配置
      setDeviceFields(defaultDeviceFields);
    } finally {
      setLoadingFields(false);
    }
  };

  // 默认设备字段配置
  const defaultDeviceFields = [
    { fieldName: 'deviceId', displayName: '设备ID', fieldType: 'string', required: true, order: 1, visible: true },
    { fieldName: 'name', displayName: '设备名称', fieldType: 'string', required: true, order: 2, visible: true },
    { fieldName: 'type', displayName: '设备类型', fieldType: 'select', required: true, order: 3, visible: true, 
      options: [{ value: 'server', label: '服务器' }, { value: 'switch', label: '交换机' }, { value: 'router', label: '路由器' }, { value: 'storage', label: '存储设备' }, { value: 'other', label: '其他设备' }] },
    { fieldName: 'model', displayName: '型号', fieldType: 'string', required: true, order: 4, visible: true },
    { fieldName: 'serialNumber', displayName: '序列号', fieldType: 'string', required: true, order: 5, visible: true },
    { fieldName: 'rackId', displayName: '所在机柜', fieldType: 'select', required: true, order: 6, visible: true },
    { fieldName: 'position', displayName: '位置(U)', fieldType: 'number', required: true, order: 7, visible: true },
    { fieldName: 'height', displayName: '高度(U)', fieldType: 'number', required: true, order: 8, visible: true },
    { fieldName: 'powerConsumption', displayName: '功率(W)', fieldType: 'number', required: true, order: 9, visible: true },
    { fieldName: 'status', displayName: '状态', fieldType: 'select', required: true, order: 10, visible: true, 
      options: [{ value: 'running', label: '运行中' }, { value: 'maintenance', label: '维护中' }, { value: 'offline', label: '离线' }, { value: 'fault', label: '故障' }] },
    { fieldName: 'purchaseDate', displayName: '购买日期', fieldType: 'date', required: true, order: 11, visible: true },
    { fieldName: 'warrantyExpiry', displayName: '保修到期', fieldType: 'date', required: true, order: 12, visible: true },
    { fieldName: 'ipAddress', displayName: 'IP地址', fieldType: 'string', required: false, order: 13, visible: true },
    { fieldName: 'description', displayName: '描述', fieldType: 'textarea', required: false, order: 14, visible: true }
  ];


  // 获取所有机柜
  const fetchRacks = async () => {
    try {
      const response = await axios.get('/api/racks');
      setRacks(response.data);
    } catch (error) {
      message.error('获取机柜列表失败');
      console.error('获取机柜列表失败:', error);
    }
  };

  useEffect(() => {
    fetchDevices();
    fetchRacks();
    fetchDeviceFields();
  }, []);

  // 打开模态框
  const showModal = (device = null) => {
    setEditingDevice(device);
    if (device) {
      // 转换日期字段为dayjs格式
      const deviceData = { ...device };
      if (deviceData.purchaseDate) deviceData.purchaseDate = dayjs(deviceData.purchaseDate);
      if (deviceData.warrantyExpiry) deviceData.warrantyExpiry = dayjs(deviceData.warrantyExpiry);
      if (!deviceData.customFields) deviceData.customFields = {};
      
      // 将customFields中的字段值合并到deviceData中，以便动态表单控件能正确显示
      Object.entries(deviceData.customFields).forEach(([fieldName, value]) => {
        deviceData[fieldName] = value;
      });
      
      form.setFieldsValue(deviceData);
    } else {
      form.resetFields();
    }
    setModalVisible(true);
  };

  // 关闭模态框
  const handleCancel = () => {
    setModalVisible(false);
    setEditingDevice(null);
  };

  // 提交表单
  const handleSubmit = async (values) => {
    try {
      // 定义设备模型的固定字段
      const fixedFields = [
        'deviceId', 'name', 'type', 'model', 'serialNumber', 'rackId',
        'position', 'height', 'powerConsumption', 'status', 'purchaseDate',
        'warrantyExpiry', 'ipAddress', 'description'
      ];
      
      // 分离固定字段和动态字段
      const fixedFieldValues = {};
      const dynamicFieldValues = {};
      
      Object.entries(values).forEach(([key, value]) => {
        if (fixedFields.includes(key)) {
          fixedFieldValues[key] = value;
        } else if (key !== 'customFields') {
          dynamicFieldValues[key] = value;
        }
      });
      
      // 合并原有的自定义字段和新的动态字段
      const allCustomFields = {
        ...(values.customFields || {}),
        ...dynamicFieldValues
      };
      
      // 构建最终的设备数据
      const deviceData = {
        ...fixedFieldValues,
        purchaseDate: fixedFieldValues.purchaseDate ? fixedFieldValues.purchaseDate.format('YYYY-MM-DD') : null,
        warrantyExpiry: fixedFieldValues.warrantyExpiry ? fixedFieldValues.warrantyExpiry.format('YYYY-MM-DD') : null,
        customFields: allCustomFields
      };

      if (editingDevice) {
        // 更新设备
        await axios.put(`/api/devices/${editingDevice.deviceId}`, deviceData);
        message.success('设备更新成功');
      } else {
        // 创建设备
        await axios.post('/api/devices', deviceData);
        message.success('设备创建成功');
      }

      setModalVisible(false);
      fetchDevices();
      setEditingDevice(null);
    } catch (error) {
      message.error(editingDevice ? '设备更新失败' : '设备创建失败');
      console.error(editingDevice ? '设备更新失败:' : '设备创建失败:', error);
    }
  };

  // 搜索处理函数
  const handleSearch = (values) => {
    fetchDevices(1, 10, values);
  };

  // 重置筛选条件
  const handleReset = () => {
    setKeyword('');
    setStatus('all');
    setType('all');
    searchForm.resetFields();
    fetchDevices(1, pagination.pageSize, { keyword: '', status: 'all', type: 'all' });
  };

  // 表格分页变化处理
  const handleTableChange = (pagination) => {
    setPagination(pagination);
    fetchDevices(pagination.current, pagination.pageSize);
  };

  // 批量下线设备
  const handleBatchOffline = async () => {
    Modal.confirm({
      title: '批量下线确认',
      content: `确定要将选中的 ${selectedDevices.length} 个设备下线吗？`,
      okText: '确认下线',
      okType: 'primary',
      cancelText: '取消',
      onOk: async () => {
        try {
          const response = await axios.put('/api/devices/batch-offline', {
            deviceIds: selectedDevices
          });
          message.success(response.data.message || '批量下线成功');
          setSelectedDevices([]);
          setSelectAll(false);
          fetchDevices();
        } catch (error) {
          message.error('批量下线失败');
          console.error('批量下线设备失败:', error);
        }
      }
    });
  };

  // 批量删除设备
  const handleBatchDelete = async () => {
    Modal.confirm({
      title: '批量删除确认',
      content: `确定要删除选中的 ${selectedDevices.length} 个设备吗？此操作不可恢复！`,
      okText: '确认删除',
      okType: 'danger',
      cancelText: '取消',
      onOk: async () => {
        try {
          const response = await axios.delete('/api/devices/batch-delete', {
            data: { deviceIds: selectedDevices }
          });
          message.success(response.data.message || '批量删除成功');
          setSelectedDevices([]);
          setSelectAll(false);
          fetchDevices();
        } catch (error) {
          message.error('批量删除失败');
          console.error('批量删除设备失败:', error);
        }
      }
    });
  };

  // 删除设备
  const handleDelete = async (deviceId) => {
    Modal.confirm({
      title: '确认删除',
      content: '确定要删除这个设备吗？',
      okText: '删除',
      okType: 'danger',
      cancelText: '取消',
      onOk: async () => {
        try {
          await axios.delete(`/api/devices/${deviceId}`);
          message.success('设备删除成功');
          fetchDevices();
        } catch (error) {
          message.error('设备删除失败');
          console.error('设备删除失败:', error);
        }
      }
    });
  };

  // 导出设备数据
  const handleExport = async () => {
    try {
      if (selectedDevices.length === 0) {
        message.warning('请先选择要导出的设备');
        return;
      }
      
      const params = new URLSearchParams();
      selectedDevices.forEach(id => params.append('deviceIds', id));
      
      const response = await axios.get(`/api/devices/export?${params.toString()}`, { responseType: 'blob' });
      const blob = new Blob([response.data], { type: 'text/csv; charset=gbk' });
      const url = window.URL.createObjectURL(blob);
      const link = document.createElement('a');
      link.href = url;
      link.download = `devices_export_${new Date().toISOString().split('T')[0]}.csv`;
      document.body.appendChild(link);
      link.click();
      document.body.removeChild(link);
      window.URL.revokeObjectURL(url);
      message.success('导出成功');
    } catch (error) {
      message.error('导出失败');
      console.error('导出设备失败:', error);
    }
  };

  // 处理单个设备选择
  const handleDeviceSelect = (deviceId) => {
    setSelectedDevices(prev => {
      if (prev.includes(deviceId)) {
        return prev.filter(id => id !== deviceId);
      } else {
        return [...prev, deviceId];
      }
    });
  };

  // 处理全选/取消全选
  const handleSelectAll = (e) => {
    setSelectAll(e.target.checked);
    if (e.target.checked) {
      setSelectedDevices(devices.map(device => device.deviceId));
    } else {
      setSelectedDevices([]);
    }
  };



  // 导入设备数据
  const handleImport = async (file) => {
    try {
      setIsImporting(true);
      setImportProgress(0);
      setImportResult(null);
      
      const formData = new FormData();
      formData.append('csvFile', file);
      
      // 模拟进度
      const progressInterval = setInterval(() => {
        setImportProgress(prev => {
          if (prev >= 90) {
            clearInterval(progressInterval);
            return prev;
          }
          return prev + 10;
        });
      }, 500);
      
      const response = await axios.post('/api/devices/import', formData, {
        headers: {
          'Content-Type': 'multipart/form-data'
        }
      });
      
      clearInterval(progressInterval);
      setImportProgress(100);
      setImportResult(response.data);
      setIsImporting(false);
      message.success('导入完成');
      
      // 重新加载设备列表
      setTimeout(() => {
        fetchDevices();
      }, 1000);
      
    } catch (error) {
      setIsImporting(false);
      message.error('导入失败');
      console.error('导入设备失败:', error);
    }
    
    // 阻止默认上传行为
    return false;
  };

  // 状态标签映射
  const statusMap = {
    running: { text: '运行中', color: 'green' },
    maintenance: { text: '维护中', color: 'orange' },
    offline: { text: '离线', color: 'gray' },
    fault: { text: '故障', color: 'red' }
  };

  // 设备类型映射
  const typeMap = {
    server: '服务器',
    switch: '交换机',
    router: '路由器',
    storage: '存储设备',
    other: '其他设备'
  };

  // 动态生成表格列配置
  const columns = React.useMemo(() => {
    const generatedColumns = [];
    
    // 根据字段配置动态生成列，只显示visible为true的字段
    deviceFields.forEach(field => {
      // 只处理可见字段
      if (!field.visible) return;
      
      // 特殊处理机柜字段
      if (field.fieldName === 'rackId') {
        // 添加机房信息列
        generatedColumns.push({
          title: '所在机房',
          dataIndex: ['Rack', 'Room', 'name'],
          key: 'roomName',
        });
        // 添加机柜信息列
        generatedColumns.push({
          title: field.displayName,
          dataIndex: ['Rack', 'name'],
          key: field.fieldName,
        });
      } 
      // 特殊处理设备类型
      else if (field.fieldName === 'type') {
        generatedColumns.push({
          title: field.displayName,
          dataIndex: field.fieldName,
          key: field.fieldName,
          render: (type) => typeMap[type],
        });
      }
      // 特殊处理状态字段
      else if (field.fieldName === 'status') {
        generatedColumns.push({
          title: field.displayName,
          dataIndex: field.fieldName,
          key: field.fieldName,
          render: (status) => (
            <span style={{ color: statusMap[status]?.color || 'black' }}>
              {statusMap[status]?.text || status}
            </span>
          ),
        });
      }
      // 特殊处理日期字段
      else if (field.fieldType === 'date') {
        generatedColumns.push({
          title: field.displayName,
          dataIndex: field.fieldName,
          key: field.fieldName,
          render: (date) => date ? new Date(date).toLocaleDateString('zh-CN') : '',
        });
      }
      // 普通字段
      else {
        generatedColumns.push({
          title: field.displayName,
          dataIndex: field.fieldName,
          key: field.fieldName,
        });
      }
    });
    
    // 添加操作列
    generatedColumns.push({
      title: '操作',
      key: 'action',
      render: (_, record) => (
        <Space size="middle">
          <Button type="primary" icon={<EditOutlined />} onClick={() => showModal(record)} size="small">
            编辑
          </Button>
          <Button danger icon={<DeleteOutlined />} onClick={() => handleDelete(record.deviceId)} size="small">
            删除
          </Button>
        </Space>
      ),
    });
    
    return generatedColumns;
  }, [deviceFields]);

  // 保存字段配置
  const handleSaveFieldConfig = async (values) => {
    try {
      // 更新设备字段配置的可见性
      const updatedFields = deviceFields.map(field => ({
        ...field,
        visible: values[field.fieldName]
      }));
      
      // 保存到后端
      await axios.post('/api/deviceFields/config', updatedFields);
      
      // 更新本地状态
      setDeviceFields(updatedFields);
      message.success('字段配置保存成功');
      setFieldConfigModalVisible(false);
    } catch (error) {
      message.error('字段配置保存失败');
      console.error('保存字段配置失败:', error);
    }
  };

  // 重置字段配置为默认值
  const handleResetFieldConfig = () => {
    const defaultFields = defaultDeviceFields;
    setDeviceFields(defaultFields);
    message.success('字段配置已重置为默认值');
  };

  return (
    <div>
      <Card title="设备管理" extra={
        <Space>
          <Button type="primary" icon={<PlusOutlined />} onClick={() => showModal()}>添加设备</Button>
          <Button icon={<DownloadOutlined />} onClick={handleExport}>导出设备</Button>
          <Button icon={<UploadOutlined />} onClick={() => setImportModalVisible(true)}>导入设备</Button>
          <Button icon={<SettingOutlined />} onClick={() => setFieldConfigModalVisible(true)}>字段配置</Button>
        </Space>
      }>

        {/* 搜索和筛选区域 */}
        <Card size="small" style={{ marginBottom: 16 }}>
          <Form
            form={searchForm}
            layout="inline"
            onFinish={handleSearch}
            style={{ width: '100%' }}
          >
            <Form.Item name="keyword">
              <Input
                placeholder="搜索设备ID、名称、类型、型号、序列号、IP、描述..."
                prefix={<SearchOutlined />}
                style={{ width: 300 }}
                value={keyword}
                onChange={(e) => setKeyword(e.target.value)}
              />
            </Form.Item>
            
            <Form.Item name="status">
              <Select
                value={status}
                onChange={setStatus}
                style={{ width: 150 }}
              >
                <Option value="all">所有状态</Option>
                <Option value="running">运行中</Option>
                <Option value="maintenance">维护中</Option>
                <Option value="offline">离线</Option>
                <Option value="fault">故障</Option>
              </Select>
            </Form.Item>
            
            <Form.Item name="type">
              <Select
                value={type}
                onChange={setType}
                style={{ width: 150 }}
              >
                <Option value="all">所有类型</Option>
                <Option value="server">服务器</Option>
                <Option value="switch">交换机</Option>
                <Option value="router">路由器</Option>
                <Option value="storage">存储设备</Option>
                <Option value="other">其他设备</Option>
              </Select>
            </Form.Item>
            
            <Form.Item>
              <Space>
                <Button type="primary" htmlType="submit" icon={<SearchOutlined />}>
                  搜索
                </Button>
                <Button onClick={handleReset}>
                  重置
                </Button>
              </Space>
            </Form.Item>
          </Form>
        </Card>
        


        <Table
          columns={[
            {
              title: (
                <Checkbox
                  checked={selectAll && devices.length > 0}
                  onChange={handleSelectAll}
                  indeterminate={selectedDevices.length > 0 && selectedDevices.length < devices.length}
                />
              ),
              key: 'selection',
              width: 60,
              render: (_, record) => (
                <Checkbox
                  checked={selectedDevices.includes(record.deviceId)}
                  onChange={() => handleDeviceSelect(record.deviceId)}
                />
              )
            },
            ...columns
          ]}
          dataSource={devices}
          rowKey="deviceId"
          loading={loading}
          pagination={pagination}
          onChange={handleTableChange}
        />
      </Card>

      <Modal
        title={editingDevice ? '编辑设备' : '添加设备'}
        open={modalVisible}
        onCancel={handleCancel}
        footer={null}
        width={800}
      >
        <Form
          form={form}
          layout="vertical"
          onFinish={handleSubmit}
        >
          {/* 动态生成表单字段 */}
          {deviceFields.map(field => {
            // 根据字段类型生成表单控件
            let control = null;
            
            switch (field.fieldType) {
              case 'text':
              case 'string':
                control = <Input placeholder={`请输入${field.displayName}`} />;
                break;
              case 'number':
                control = <InputNumber placeholder={`请输入${field.displayName}`} min={0} style={{ width: '100%' }} />;
                break;
              case 'boolean':
                control = <Switch />;
                break;
              case 'date':
                control = <DatePicker style={{ width: '100%' }} placeholder={`请选择${field.displayName}`} />;
                break;
              case 'textarea':
                control = <Input.TextArea placeholder={`请输入${field.displayName}`} rows={3} />;
                break;
              case 'select':
                // 特殊处理机柜选择
                if (field.fieldName === 'rackId') {
                  control = (
                    <Select placeholder={`请选择${field.displayName}`}>
                      {racks.map(rack => (
                        <Option key={rack.rackId} value={rack.rackId}>
                          {rack.name} ({rack.rackId})
                        </Option>
                      ))}
                    </Select>
                  );
                } else {
                  control = (
                    <Select placeholder={`请选择${field.displayName}`}>
                      {field.options && field.options.map(option => (
                        <Option key={option.value} value={option.value}>
                          {option.label}
                        </Option>
                      ))}
                    </Select>
                  );
                }
                break;
              default:
                control = <Input placeholder={`请输入${field.displayName}`} />;
            }

            return (
              <Form.Item
                key={field.fieldName}
                name={field.fieldName}
                label={field.displayName}
                rules={field.required ? [{ required: true, message: `请输入${field.displayName}` }] : []}
              >
                {control}
              </Form.Item>
            );
          })}

          {/* 自定义字段区域 */}
          <Form.Item label="自定义字段">
            <div>
              {/* 添加自定义字段 */}
              <Space style={{ marginBottom: 16 }}>
                <Input 
                  placeholder="字段名称" 
                  value={customFieldName}
                  onChange={(e) => setCustomFieldName(e.target.value)}
                  style={{ width: 150 }}
                />
                <Input 
                  placeholder="字段值" 
                  value={customFieldValue}
                  onChange={(e) => setCustomFieldValue(e.target.value)}
                  style={{ width: 150 }}
                />
                <Button 
                  type="primary"
                  onClick={() => {
                    if (customFieldName && customFieldValue) {
                      const currentCustomFields = form.getFieldValue('customFields') || {};
                      form.setFieldValue('customFields', {
                        ...currentCustomFields,
                        [customFieldName]: customFieldValue
                      });
                      setCustomFieldName('');
                      setCustomFieldValue('');
                    }
                  }}
                >
                  添加字段
                </Button>
              </Space>
              
              {/* 显示自定义字段 */}
              <div>
                {Object.entries(form.getFieldValue('customFields') || {}).map(([key, value]) => (
                  <div key={key} style={{ marginBottom: 8, display: 'flex', alignItems: 'center' }}>
                    <span style={{ marginRight: 8, fontWeight: 'bold' }}>{key}:</span>
                    <span style={{ marginRight: 16 }}>{value}</span>
                    <Button 
                      danger 
                      size="small"
                      onClick={() => {
                        const currentCustomFields = { ...form.getFieldValue('customFields') };
                        delete currentCustomFields[key];
                        form.setFieldValue('customFields', currentCustomFields);
                      }}
                    >
                      删除
                    </Button>
                  </div>
                ))}
              </div>
            </div>
          </Form.Item>

          <Form.Item style={{ textAlign: 'right' }}>
            <Space>
              <Button onClick={handleCancel}>取消</Button>
              <Button type="primary" htmlType="submit">
                确定
              </Button>
            </Space>
          </Form.Item>
        </Form>
      </Modal>

      {/* 导入设备模态框 */}
      {/* 字段配置模态框 */}
      <Modal
        title="字段配置"
        open={fieldConfigModalVisible}
        onCancel={() => setFieldConfigModalVisible(false)}
        footer={null}
        width={600}
      >
        <Form
          layout="vertical"
          onFinish={handleSaveFieldConfig}
          initialValues={deviceFields.reduce((acc, field) => ({
            ...acc,
            [field.fieldName]: field.visible
          }), {})}
        >
          <div style={{ maxHeight: 400, overflowY: 'auto' }}>
            {/* 将字段分为多列显示 */}
            <div style={{ display: 'grid', gridTemplateColumns: 'repeat(3, 1fr)', gap: '12px' }}>
              {deviceFields.map(field => (
                <Form.Item
                  key={field.fieldName}
                  name={field.fieldName}
                  valuePropName="checked"
                  noStyle
                >
                  <Checkbox style={{ marginBottom: '8px' }}>
                    {field.displayName}
                  </Checkbox>
                </Form.Item>
              ))}
            </div>
          </div>
          
          <Form.Item style={{ textAlign: 'right', marginTop: '20px' }}>
            <Space>
              <Button onClick={() => setFieldConfigModalVisible(false)}>取消</Button>
              <Button onClick={handleResetFieldConfig}>重置默认</Button>
              <Button type="primary" htmlType="submit">保存</Button>
            </Space>
          </Form.Item>
        </Form>
      </Modal>

      <Modal
        title="导入设备"
        open={importModalVisible}
        onCancel={() => {
          setImportModalVisible(false);
          setImportProgress(0);
          setImportResult(null);
          setIsImporting(false);
        }}
        footer={null}
        width={600}
        destroyOnClose
      >
        {!isImporting ? (
          <div>
            <p>请上传CSV格式的设备数据文件</p>
            <p style={{ color: '#999', fontSize: '12px', marginBottom: 20 }}>支持的编码格式：GBK</p>
            
            <div style={{ marginBottom: 20 }}>
              <p style={{ fontWeight: 'bold', marginBottom: 8 }}>CSV文件格式要求：</p>
              <ul style={{ paddingLeft: 20, marginBottom: 10 }}>
                <li>必填字段：设备ID、设备名称、设备类型、型号、序列号、所在机柜ID、位置(U)、高度(U)、功率(W)、状态、购买日期、保修到期</li>
                <li>可选字段：IP地址、描述</li>
                <li>设备类型：server(服务器)、switch(交换机)、router(路由器)、storage(存储设备)</li>
                <li>状态值：running(运行中)、maintenance(维护中)、offline(离线)、fault(故障)</li>
                <li>日期格式：YYYY-MM-DD (例如：2023-01-01)</li>
              </ul>
            </div>
            
            <div style={{ marginBottom: 20 }}>
              <a href="/api/devices/import-template" download="设备导入模板.csv">
                <Button icon={<DownloadOutlined />} style={{ marginRight: 10 }}>
                  下载导入模板
                </Button>
              </a>
              <span style={{ color: '#999', fontSize: '12px' }}>包含示例数据的CSV模板文件</span>
            </div>
            
            <Upload
              name="csvFile"
              accept=".csv"
              showUploadList={false}
              beforeUpload={handleImport}
              maxCount={1}
            >
              <Button type="primary" icon={<UploadOutlined />} block>
                选择CSV文件
              </Button>
            </Upload>
          </div>
        ) : (
          <div>
            <p>正在导入数据...</p>
            <Progress percent={importProgress} status="active" style={{ marginBottom: 20 }} />
            {importResult && (
              <div>
                <p style={{ marginBottom: 10 }}>导入完成：</p>
                <p>总记录数：{importResult.statistics.total}</p>
                <p>成功：{importResult.statistics.success}</p>
                <p>失败：{importResult.statistics.failed}</p>
                {importResult.statistics.errors.length > 0 && (
                  <div style={{ marginTop: 20, maxHeight: 300, overflowY: 'auto' }}>
                    <h4>失败记录：</h4>
                    <ul>
                      {importResult.statistics.errors.map((item, index) => (
                        <li key={index} style={{ color: 'red', fontSize: '12px', marginBottom: 5 }}>
                          行{item.row}：{item.error}
                        </li>
                      ))}
                    </ul>
                  </div>
                )}
                <Button type="primary" onClick={() => {
                  setImportModalVisible(false);
                  setImportProgress(0);
                  setImportResult(null);
                  setIsImporting(false);
                  fetchDevices();
                }} style={{ marginTop: 20 }}>
                  确定
                </Button>
              </div>
            )}
          </div>
        )}
      </Modal>
    </div>
  );
}

export default DeviceManagement;