/**
 * Company 页面顶部搜索栏组件 - FUI 科幻风格
 */

import React, { memo, useMemo, useCallback, useState } from 'react';
import { Box, Flex, HStack, VStack, Text } from '@chakra-ui/react';
import { AutoComplete, Input, Spin } from 'antd';
import { SearchOutlined } from '@ant-design/icons';
import { useStockSearch } from '@hooks/useStockSearch';
import { LAYOUT_PADDING } from '@/layouts/config/layoutConfig';
import { THEME } from '../../config';
import { FUI_COLORS, FUI_GLOW } from '../../theme/fui';
import type { CompanyHeaderProps, StockSearchResult } from '../../types';
import {
  DROPDOWN_STYLE,
  SEARCH_ICON_STYLE,
  INPUT_STYLE,
  AUTOCOMPLETE_STYLE,
  SEARCH_BOX_SX,
} from './constants';

// ============================================
// SearchBox 子组件
// ============================================

const SearchBox = memo<{
  onStockChange: (value: string) => void;
}>(({ onStockChange }) => {
  const [inputCode, setInputCode] = useState('');

  const {
    searchResults,
    isSearching,
    handleSearch: doSearch,
    clearSearch,
  } = useStockSearch({
    limit: 10,
    debounceMs: 300,
    onSearch: () => {},
  }) as {
    searchResults: StockSearchResult[];
    isSearching: boolean;
    handleSearch: (query: string) => void;
    clearSearch: () => void;
  };

  const stockOptions = useMemo(() => (
    searchResults.map((stock: StockSearchResult) => ({
      value: stock.stock_code,
      label: (
        <Flex justify="space-between" align="center" py={1}>
          <HStack spacing={2}>
            <Text fontWeight="bold" color={THEME.gold}>{stock.stock_code}</Text>
            <Text color={THEME.textPrimary}>{stock.stock_name}</Text>
          </HStack>
          {stock.pinyin_abbr && (
            <Text fontSize="xs" color={THEME.textMuted}>
              {stock.pinyin_abbr.toUpperCase()}
            </Text>
          )}
        </Flex>
      ),
    }))
  ), [searchResults]);

  const handleSearch = useCallback(() => {
    if (inputCode) {
      onStockChange(inputCode);
    }
  }, [inputCode, onStockChange]);

  const handleSelect = useCallback((value: string) => {
    clearSearch();
    setInputCode(value);
    onStockChange(value);
  }, [clearSearch, onStockChange]);

  const handleKeyDown = useCallback((e: React.KeyboardEvent) => {
    if (e.key === 'Enter') handleSearch();
  }, [handleSearch]);

  const searchIcon = useMemo(() => (
    <SearchOutlined style={SEARCH_ICON_STYLE} onClick={handleSearch} />
  ), [handleSearch]);

  return (
    <Box sx={SEARCH_BOX_SX}>
      <AutoComplete
        classNames={{ popup: { root: 'fui-autocomplete-dropdown' } }}
        styles={{ popup: { root: DROPDOWN_STYLE } }}
        value={inputCode}
        options={stockOptions}
        onSearch={doSearch}
        onSelect={handleSelect}
        onChange={setInputCode}
        style={AUTOCOMPLETE_STYLE}
        notFoundContent={isSearching ? <Spin size="small" /> : null}
      >
        <Input
          placeholder="输入股票代码或名称"
          prefix={searchIcon}
          onKeyDown={handleKeyDown}
          style={INPUT_STYLE}
        />
      </AutoComplete>
    </Box>
  );
});

SearchBox.displayName = 'SearchBox';

// ============================================
// CompanyHeader 主组件
// ============================================

const CompanyHeader: React.FC<CompanyHeaderProps> = memo(({ onStockChange }) => (
  <Box
    position="relative"
    border="1px solid"
    borderRadius="8px"
    sx={{
      bg: FUI_COLORS.bg.primary,
      borderColor: FUI_COLORS.line.default,
      padding: '20px 20px',
    }}
  >
    <Flex
      position="relative"
      zIndex={1}
      justify="space-between"
      align="center"
    >
      <VStack align="start" spacing={1}>
        <Text
          fontSize="2xl"
          fontWeight="bold"
          color={FUI_COLORS.gold[400]}
          letterSpacing="wider"
          textShadow={FUI_GLOW.text.gold}
        >
          个股详情
        </Text>
        <Text fontSize="sm" color={FUI_COLORS.text.muted} letterSpacing="wide">
          查看股票实时行情、财务数据和盈利预测
        </Text>
      </VStack>
      <SearchBox onStockChange={onStockChange} />
    </Flex>
  </Box>
));

CompanyHeader.displayName = 'CompanyHeader';

export default CompanyHeader;