import * as IconPark from '@icon-park/react';

import { Input, List, Modal, Pagination } from 'antd';
import { useState } from 'react';

const allIcons = Object.keys(IconPark);

// 动态构造 iconMap
const iconMap: Record<string, React.ReactNode> = {};

allIcons.forEach((iconName) => {
  // 排除不需要的属性（如默认导出等）
  if (
    iconName !== 'default' &&
    typeof IconPark[iconName as keyof typeof IconPark] === 'function'
  ) {
    const IconComponent = IconPark[
      iconName as keyof typeof IconPark
    ] as React.ComponentType<any>;
    iconMap[iconName] = <IconComponent theme="outline" size="16" />;
  }
});

// 图标选项列表
const iconOptions = Object.keys(iconMap).map((key) => ({
  label: (
    <span>
      {iconMap[key]} {key}
    </span>
  ),
  value: key,
}));

interface IconSelectorProps {
  value?: string;
  onChange?: (value: string) => void;
}

const IconSelector: React.FC<IconSelectorProps> = ({ value, onChange }) => {
  const [open, setOpen] = useState(false);
  const [searchValue, setSearchValue] = useState('');
  const [currentPage, setCurrentPage] = useState(1);
  const pageSize = 48;

  // 过滤图标
  const filteredIcons = iconOptions.filter(
    (option) =>
      option.value.toLowerCase().includes(searchValue.toLowerCase()) ||
      option.value.toLowerCase().includes(searchValue.toLowerCase()),
  );

  // 分页数据
  const paginatedIcons = filteredIcons.slice(
    (currentPage - 1) * pageSize,
    currentPage * pageSize,
  );

  const handleSelect = (iconName: string) => {
    onChange?.(iconName);
    setOpen(false);
    setCurrentPage(1);
    setSearchValue('');
  };

  const handleClear = () => {
    onChange?.('');
    setOpen(false);
  };

  return (
    <>
      <div
        onClick={() => setOpen(true)}
        style={{
          border: '1px solid #d9d9d9',
          borderRadius: 6,
          padding: '4px 11px',
          cursor: 'pointer',
          minHeight: 32,
          display: 'flex',
          alignItems: 'center',
        }}
      >
        {value ? (
          <span>
            {iconMap[value as keyof typeof iconMap]}
            <span style={{ marginLeft: 8 }}>{value}</span>
          </span>
        ) : (
          <span style={{ color: '#bfbfbf' }}>请选择图标</span>
        )}
      </div>

      <Modal
        title="选择图标"
        open={open}
        onCancel={() => {
          setOpen(false);
          setCurrentPage(1);
          setSearchValue('');
        }}
        onOk={() => setOpen(false)}
        width={800}
        styles={{ body: { padding: 0 } }}
        okText="确定"
        cancelText="取消"
      >
        <div style={{ padding: 16 }}>
          <Input.Search
            placeholder="搜索图标..."
            value={searchValue}
            onChange={(e) => {
              setSearchValue(e.target.value);
              setCurrentPage(1);
            }}
            style={{ marginBottom: 16 }}
          />

          {filteredIcons.length === 0 ? (
            <IconPark.Empty title="未找到相关图标" />
          ) : (
            <>
              <List
                grid={{ gutter: 16, column: 8 }}
                dataSource={paginatedIcons}
                renderItem={(item) => (
                  <List.Item
                    onClick={() => handleSelect(item.value)}
                    style={{
                      cursor: 'pointer',
                      textAlign: 'center',
                      border:
                        value === item.value
                          ? '1px solid #1890ff'
                          : '1px solid transparent',
                      borderRadius: 6,
                      padding: 8,
                    }}
                  >
                    <div>
                      <div style={{ fontSize: 20, marginBottom: 4 }}>
                        {iconMap[item.value as keyof typeof iconMap]}
                      </div>
                      <div
                        style={{
                          fontSize: 12,
                          overflow: 'hidden',
                          textOverflow: 'ellipsis',
                        }}
                      >
                        {item.value}
                      </div>
                    </div>
                  </List.Item>
                )}
              />

              <div
                style={{
                  display: 'flex',
                  justifyContent: 'space-between',
                  marginTop: 16,
                }}
              >
                <Pagination
                  current={currentPage}
                  pageSize={pageSize}
                  total={filteredIcons.length}
                  onChange={setCurrentPage}
                  showSizeChanger={false}
                  size="small"
                />
                <div>
                  <a onClick={handleClear} style={{ marginRight: 16 }}>
                    清除选择
                  </a>
                </div>
              </div>
            </>
          )}
        </div>
      </Modal>
    </>
  );
};

export default IconSelector;