/**
 * 热点概览组件 - 科技感设计
 * 展示大盘分时走势 + 概念异动标注
 *
 * 布局设计：
 * - 顶部：统计摘要（指数信息 + 异动统计）
 * - 中部：大尺寸分时图（主要展示区域）
 * - 底部：异动列表（横向滚动卡片）
 */
import React, { useState, useCallback } from 'react';
import {
  Box,
  Heading,
  Text,
  HStack,
  VStack,
  Spinner,
  Center,
  Icon,
  Flex,
  Spacer,
  Tooltip,
  useColorModeValue,
  IconButton,
  Collapse,
  SimpleGrid,
} from '@chakra-ui/react';
import { keyframes } from '@emotion/react';
import {
  Flame,
  List,
  LineChart,
  ChevronDown,
  ChevronUp,
  Info,
  Zap,
  AlertCircle,
  TrendingUp,
  TrendingDown,
} from 'lucide-react';

import { useHotspotData } from './hooks';
import { IndexMinuteChart, ConceptAlertList, AlertSummary } from './components';
import { ALERT_TYPE_CONFIG, getAlertTypeLabel } from './utils/chartHelpers';

// 动画效果
const gradientShift = keyframes`
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
`;

const pulseGlow = keyframes`
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
`;

/**
 * 紧凑型异动卡片（用于横向滚动）
 */
const CompactAlertCard = ({ alert, onClick, isSelected }) => {
  const cardBg = useColorModeValue('white', '#0d0d0d');
  const borderColor = useColorModeValue('gray.200', '#2d2d2d');
  const textColor = useColorModeValue('gray.800', 'white');
  const subTextColor = useColorModeValue('gray.500', 'gray.400');

  const config = ALERT_TYPE_CONFIG[alert.alert_type] || ALERT_TYPE_CONFIG.surge;
  const isUp = alert.alert_type !== 'surge_down';

  return (
    <Box
      bg={cardBg}
      borderRadius="xl"
      borderWidth="2px"
      borderColor={isSelected ? config.color : borderColor}
      p={3}
      minW="180px"
      maxW="200px"
      cursor="pointer"
      onClick={() => onClick?.(alert)}
      transition="all 0.2s"
      _hover={{
        borderColor: config.color,
        transform: 'translateY(-2px)',
        boxShadow: `0 4px 15px ${config.color}25`,
      }}
      position="relative"
      overflow="hidden"
    >
      {/* 顶部渐变条 */}
      <Box
        position="absolute"
        top={0}
        left={0}
        right={0}
        h="3px"
        bgGradient={`linear(to-r, ${config.gradient[0]}, ${config.gradient[1]})`}
      />

      {/* 时间 + 类型 */}
      <HStack justify="space-between" mb={1}>
        <Text fontSize="xs" color={subTextColor} fontFamily="mono">
          {alert.time}
        </Text>
        <HStack
          spacing={1}
          px={1.5}
          py={0.5}
          borderRadius="md"
          bg={`${config.color}15`}
        >
          <Icon
            as={isUp ? TrendingUp : TrendingDown}
            boxSize={3}
            color={config.color}
          />
          <Text fontSize="10px" fontWeight="bold" color={config.color}>
            {getAlertTypeLabel(alert.alert_type)}
          </Text>
        </HStack>
      </HStack>

      {/* 概念名称 */}
      <Text
        fontWeight="bold"
        fontSize="sm"
        color={textColor}
        noOfLines={1}
        mb={1}
      >
        {alert.concept_name}
      </Text>

      {/* 分数 + Alpha */}
      <HStack justify="space-between" fontSize="xs">
        <HStack spacing={1}>
          <Text color={subTextColor}>评分</Text>
          <Text fontWeight="bold" color={config.color}>
            {Math.round(alert.final_score || 0)}
          </Text>
        </HStack>
        {alert.alpha != null && (
          <Text
            fontWeight="bold"
            color={alert.alpha >= 0 ? '#ff4d4f' : '#52c41a'}
          >
            α {alert.alpha >= 0 ? '+' : ''}{alert.alpha.toFixed(1)}%
          </Text>
        )}
      </HStack>
    </Box>
  );
};

/**
 * 热点概览主组件
 * @param {Object} props
 * @param {Date|null} props.selectedDate - 选中的交易日期
 */
const HotspotOverview = ({ selectedDate }) => {
  const [selectedAlert, setSelectedAlert] = useState(null);
  const [showDetailList, setShowDetailList] = useState(false);

  // 获取数据
  const { loading, error, data } = useHotspotData(selectedDate);

  // 颜色主题
  const cardBg = useColorModeValue('white', '#0a0a0a');
  const borderColor = useColorModeValue('gray.200', '#1f1f1f');
  const textColor = useColorModeValue('gray.800', 'white');
  const subTextColor = useColorModeValue('gray.600', 'gray.400');
  const sectionBg = useColorModeValue('gray.50', '#0d0d0d');
  const scrollbarColor = useColorModeValue('#ddd', '#333');

  // 点击异动标注
  const handleAlertClick = useCallback((alert) => {
    setSelectedAlert(alert);
  }, []);

  // 渲染加载状态
  if (loading) {
    return (
      <Box
        bg={cardBg}
        borderRadius="2xl"
        borderWidth="1px"
        borderColor={borderColor}
        overflow="hidden"
      >
        <Box
          h="4px"
          bgGradient="linear(to-r, orange.400, red.500, pink.500)"
          backgroundSize="200% 200%"
          css={{ animation: `${gradientShift} 3s ease infinite` }}
        />
        <Center h="500px" p={6}>
          <VStack spacing={4}>
            <Box position="relative">
              <Spinner size="xl" color="orange.400" thickness="3px" speed="0.8s" />
              <Box
                position="absolute"
                inset={0}
                borderRadius="full"
                css={{ animation: `${pulseGlow} 2s ease-in-out infinite` }}
                boxShadow="0 0 30px rgba(251, 146, 60, 0.3)"
              />
            </Box>
            <VStack spacing={1}>
              <Text color={textColor} fontWeight="medium">加载热点概览数据</Text>
              <Text color={subTextColor} fontSize="sm">正在获取市场异动信息...</Text>
            </VStack>
          </VStack>
        </Center>
      </Box>
    );
  }

  // 渲染错误状态
  if (error) {
    return (
      <Box
        bg={cardBg}
        borderRadius="2xl"
        borderWidth="1px"
        borderColor={borderColor}
        overflow="hidden"
      >
        <Box h="4px" bg="red.500" />
        <Center h="400px" p={6}>
          <VStack spacing={4}>
            <Box p={4} borderRadius="full" bg="red.50">
              <Icon as={AlertCircle} boxSize={10} color="red.400" />
            </Box>
            <VStack spacing={1}>
              <Text color="red.400" fontWeight="medium">数据加载失败</Text>
              <Text color={subTextColor} fontSize="sm" textAlign="center">{error}</Text>
            </VStack>
          </VStack>
        </Center>
      </Box>
    );
  }

  if (!data) return null;

  const { index, alerts, alert_summary } = data;

  return (
    <Box
      bg={cardBg}
      borderRadius="2xl"
      borderWidth="1px"
      borderColor={borderColor}
      overflow="hidden"
      transition="all 0.3s"
    >
      {/* 顶部装饰条 */}
      <Box
        h="4px"
        bgGradient="linear(to-r, orange.400, red.500, pink.500)"
        backgroundSize="200% 200%"
        css={{ animation: `${gradientShift} 3s ease infinite` }}
      />

      <Box p={5}>
        {/* 头部 */}
        <Flex align="center" mb={4}>
          <HStack spacing={3}>
            <Box
              p={2}
              borderRadius="xl"
              bgGradient="linear(to-br, orange.400, red.500)"
              boxShadow="0 4px 15px rgba(251, 146, 60, 0.4)"
            >
              <Icon as={Flame} boxSize={5} color="white" />
            </Box>
            <VStack align="flex-start" spacing={0}>
              <Heading size="md" color={textColor} fontWeight="bold">热点概览</Heading>
              <Text fontSize="xs" color={subTextColor}>实时概念异动监控</Text>
            </VStack>
          </HStack>
          <Spacer />
          <HStack spacing={2}>
            {alerts.length > 0 && (
              <HStack spacing={1} px={3} py={1.5} borderRadius="full" bg="orange.50">
                <Icon as={Zap} boxSize={3.5} color="orange.500" />
                <Text fontSize="sm" fontWeight="bold" color="orange.500">{alerts.length}</Text>
              </HStack>
            )}
            <Tooltip label="展示大盘走势与概念异动的关联" hasArrow maxW="200px">
              <Box cursor="help">
                <Icon as={Info} color={subTextColor} boxSize={4} />
              </Box>
            </Tooltip>
          </HStack>
        </Flex>

        {/* 统计摘要 - 简化版 */}
        <SimpleGrid columns={{ base: 1, md: 2 }} spacing={4} mb={4}>
          {/* 指数信息 */}
          <Box bg={sectionBg} borderRadius="xl" p={4} borderWidth="1px" borderColor={borderColor}>
            <HStack justify="space-between" align="flex-start">
              <VStack align="flex-start" spacing={0}>
                <Text fontSize="xs" color={subTextColor}>{index?.name || '上证指数'}</Text>
                <Text
                  fontSize="2xl"
                  fontWeight="bold"
                  color={(index?.change_pct || 0) >= 0 ? '#ff4d4f' : '#52c41a'}
                >
                  {index?.latest_price?.toFixed(2) || '-'}
                </Text>
              </VStack>
              <VStack align="flex-end" spacing={0}>
                <HStack
                  spacing={1}
                  px={2}
                  py={1}
                  borderRadius="full"
                  bg={(index?.change_pct || 0) >= 0 ? 'red.50' : 'green.50'}
                >
                  <Icon
                    as={(index?.change_pct || 0) >= 0 ? TrendingUp : TrendingDown}
                    boxSize={3}
                    color={(index?.change_pct || 0) >= 0 ? '#ff4d4f' : '#52c41a'}
                  />
                  <Text
                    fontSize="sm"
                    fontWeight="bold"
                    color={(index?.change_pct || 0) >= 0 ? '#ff4d4f' : '#52c41a'}
                  >
                    {(index?.change_pct || 0) >= 0 ? '+' : ''}{(index?.change_pct || 0).toFixed(2)}%
                  </Text>
                </HStack>
                <HStack spacing={3} mt={1} fontSize="xs" color={subTextColor}>
                  <Text>高 <Text as="span" color="#ff4d4f" fontWeight="bold">{index?.high?.toFixed(2)}</Text></Text>
                  <Text>低 <Text as="span" color="#52c41a" fontWeight="bold">{index?.low?.toFixed(2)}</Text></Text>
                </HStack>
              </VStack>
            </HStack>
          </Box>

          {/* 异动统计 */}
          <Box bg={sectionBg} borderRadius="xl" p={4} borderWidth="1px" borderColor={borderColor}>
            <HStack justify="space-between" mb={2}>
              <Text fontSize="sm" fontWeight="medium" color={textColor}>今日异动</Text>
              <Text fontSize="xs" color="orange.500" fontWeight="bold">{alerts.length} 次</Text>
            </HStack>
            <Flex gap={2} flexWrap="wrap">
              {Object.entries(alert_summary || {})
                .filter(([_, count]) => count > 0)
                .slice(0, 4)
                .map(([type, count]) => {
                  const config = ALERT_TYPE_CONFIG[type];
                  if (!config) return null;
                  return (
                    <HStack
                      key={type}
                      spacing={1}
                      px={2}
                      py={1}
                      borderRadius="md"
                      bg={`${config.color}10`}
                    >
                      <Text fontSize="xs" color={config.color}>{config.label}</Text>
                      <Text fontSize="xs" fontWeight="bold" color={config.color}>{count}</Text>
                    </HStack>
                  );
                })}
            </Flex>
          </Box>
        </SimpleGrid>

        {/* 大尺寸分时图 */}
        <Box
          bg={sectionBg}
          borderRadius="xl"
          borderWidth="1px"
          borderColor={borderColor}
          p={4}
          mb={4}
        >
          <HStack spacing={2} mb={3}>
            <Box p={1.5} borderRadius="lg" bg="purple.50">
              <Icon as={LineChart} boxSize={4} color="purple.500" />
            </Box>
            <Text fontSize="sm" fontWeight="bold" color={textColor}>大盘分时走势</Text>
            <Tooltip label="图表上的标记点表示概念异动时刻，点击可查看详情" hasArrow>
              <Icon as={Info} boxSize={3} color={subTextColor} cursor="help" />
            </Tooltip>
          </HStack>
          <IndexMinuteChart
            indexData={index}
            alerts={alerts}
            onAlertClick={handleAlertClick}
            height="420px"
          />
        </Box>

        {/* 异动列表 - 横向滚动 */}
        {alerts.length > 0 && (
          <Box>
            <Flex justify="space-between" align="center" mb={3}>
              <HStack spacing={2}>
                <Box p={1.5} borderRadius="lg" bg="orange.50">
                  <Icon as={List} boxSize={4} color="orange.500" />
                </Box>
                <Text fontSize="sm" fontWeight="bold" color={textColor}>异动记录</Text>
                <Text fontSize="xs" color={subTextColor}>（横向滚动查看更多）</Text>
              </HStack>
              <Tooltip label={showDetailList ? '收起详细列表' : '展开详细列表'} hasArrow>
                <IconButton
                  icon={<Icon as={showDetailList ? ChevronUp : ChevronDown} boxSize={4} />}
                  size="sm"
                  variant="ghost"
                  borderRadius="lg"
                  onClick={() => setShowDetailList(!showDetailList)}
                  aria-label="切换详细列表"
                />
              </Tooltip>
            </Flex>

            {/* 横向滚动卡片 */}
            <Box
              overflowX="auto"
              pb={2}
              sx={{
                '&::-webkit-scrollbar': { height: '6px' },
                '&::-webkit-scrollbar-track': { background: 'transparent' },
                '&::-webkit-scrollbar-thumb': {
                  background: scrollbarColor,
                  borderRadius: '3px',
                },
              }}
            >
              <HStack spacing={3} pb={1}>
                {[...alerts]
                  .sort((a, b) => (b.time || '').localeCompare(a.time || ''))
                  .map((alert, idx) => (
                    <CompactAlertCard
                      key={`${alert.concept_id}-${alert.time}-${idx}`}
                      alert={alert}
                      onClick={handleAlertClick}
                      isSelected={selectedAlert?.concept_id === alert.concept_id && selectedAlert?.time === alert.time}
                    />
                  ))}
              </HStack>
            </Box>

            {/* 详细列表（可展开） */}
            <Collapse in={showDetailList} animateOpacity>
              <Box
                mt={4}
                bg={sectionBg}
                borderRadius="xl"
                borderWidth="1px"
                borderColor={borderColor}
                p={4}
              >
                <ConceptAlertList
                  alerts={alerts}
                  onAlertClick={handleAlertClick}
                  selectedAlert={selectedAlert}
                  maxHeight="400px"
                />
              </Box>
            </Collapse>
          </Box>
        )}

        {/* 无异动提示 */}
        {alerts.length === 0 && (
          <Center py={8} bg={sectionBg} borderRadius="xl">
            <VStack spacing={2}>
              <Icon as={Zap} boxSize={8} color={subTextColor} opacity={0.5} />
              <Text color={subTextColor} fontSize="sm">当日暂无概念异动数据</Text>
            </VStack>
          </Center>
        )}
      </Box>
    </Box>
  );
};

export default HotspotOverview;