// src/views/Community/components/MarketReviewCard.js
// 市场复盘组件（左右布局：事件列表 | 事件详情）

import React, { forwardRef, useState } from 'react';
import {
  Card,
  CardHeader,
  CardBody,
  Box,
  Flex,
  VStack,
  HStack,
  Heading,
  Text,
  Badge,
  Center,
  Spinner,
  useColorModeValue,
  Grid,
  GridItem,
} from '@chakra-ui/react';
import { TimeIcon, InfoIcon } from '@chakra-ui/icons';
import dayjs from 'dayjs';
import CompactEventCard from './EventCard/CompactEventCard';
import EventHeader from './EventCard/EventHeader';
import EventStats from './EventCard/EventStats';
import EventFollowButton from './EventCard/EventFollowButton';
import EventPriceDisplay from './EventCard/EventPriceDisplay';
import EventDescription from './EventCard/EventDescription';
import { getImportanceConfig } from '../../../constants/importanceLevels';

/**
 * 市场复盘 - 左右布局卡片组件
 * @param {Array} events - 事件列表
 * @param {boolean} loading - 加载状态
 * @param {Date} lastUpdateTime - 最后更新时间
 * @param {Function} onEventClick - 事件点击回调
 * @param {Function} onViewDetail - 查看详情回调
 * @param {Function} onToggleFollow - 切换关注回调
 * @param {Object} ref - 用于滚动的ref
 */
const MarketReviewCard = forwardRef(({
  events,
  loading,
  lastUpdateTime,
  onEventClick,
  onViewDetail,
  onToggleFollow,
  ...rest
}, ref) => {
  const cardBg = useColorModeValue('white', 'gray.800');
  const borderColor = useColorModeValue('gray.200', 'gray.700');
  const linkColor = useColorModeValue('blue.600', 'blue.400');
  const mutedColor = useColorModeValue('gray.500', 'gray.400');
  const textColor = useColorModeValue('gray.700', 'gray.200');
  const selectedBg = useColorModeValue('blue.50', 'blue.900');

  // 选中的事件
  const [selectedEvent, setSelectedEvent] = useState(null);

  // 时间轴样式配置
  const getTimelineBoxStyle = () => {
    return {
      bg: useColorModeValue('gray.50', 'gray.700'),
      borderColor: useColorModeValue('gray.400', 'gray.500'),
      borderWidth: '2px',
      textColor: useColorModeValue('blue.600', 'blue.400'),
      boxShadow: 'sm',
    };
  };

  // 处理事件点击
  const handleEventClick = (event) => {
    setSelectedEvent(event);
    if (onEventClick) {
      onEventClick(event);
    }
  };

  // 渲染右侧事件详情
  const renderEventDetail = () => {
    if (!selectedEvent) {
      return (
        <Center h="full" minH="400px">
          <VStack spacing={4}>
            <InfoIcon boxSize={12} color={mutedColor} />
            <Text color={mutedColor} fontSize="lg">
              请从左侧选择事件查看详情
            </Text>
          </VStack>
        </Center>
      );
    }

    const importance = getImportanceConfig(selectedEvent.importance);

    return (
      <Card
        bg={cardBg}
        borderWidth="1px"
        borderColor={borderColor}
        borderRadius="md"
        boxShadow="md"
        h="full"
      >
        <CardBody p={6}>
          <VStack align="stretch" spacing={4}>
            {/* 第一行：标题+优先级 | 统计+关注 */}
            <Flex align="center" justify="space-between" gap={3}>
              {/* 左侧：标题 + 优先级标签 */}
              <EventHeader
                title={selectedEvent.title}
                importance={selectedEvent.importance}
                onTitleClick={(e) => {
                  e.preventDefault();
                  e.stopPropagation();
                  if (onViewDetail) {
                    onViewDetail(e, selectedEvent.id);
                  }
                }}
                linkColor={linkColor}
                compact={false}
                size="lg"
              />

              {/* 右侧：统计数据 + 关注按钮 */}
              <HStack spacing={4} flexShrink={0}>
                {/* 统计数据 */}
                <EventStats
                  viewCount={selectedEvent.view_count}
                  postCount={selectedEvent.post_count}
                  followerCount={selectedEvent.follower_count}
                  size="md"
                  spacing={4}
                  display="flex"
                  mutedColor={mutedColor}
                />

                {/* 关注按钮 */}
                <EventFollowButton
                  isFollowing={false}
                  followerCount={selectedEvent.follower_count}
                  onToggle={() => onToggleFollow && onToggleFollow(selectedEvent.id)}
                  size="sm"
                  showCount={false}
                />
              </HStack>
            </Flex>

            {/* 第二行：价格标签 | 时间+作者 */}
            <Flex justify="space-between" align="center" wrap="wrap" gap={3}>
              {/* 左侧：价格标签 */}
              <EventPriceDisplay
                avgChange={selectedEvent.related_avg_chg}
                maxChange={selectedEvent.related_max_chg}
                weekChange={selectedEvent.related_week_chg}
                compact={false}
              />

              {/* 右侧：时间 + 作者 */}
              <HStack spacing={2} fontSize="sm" flexShrink={0}>
                <Text fontWeight="bold" color={linkColor}>
                  {dayjs(selectedEvent.created_at).format('YYYY-MM-DD HH:mm')}
                </Text>
                <Text color={mutedColor}>•</Text>
                <Text color={mutedColor}>@{selectedEvent.creator?.username || 'Anonymous'}</Text>
              </HStack>
            </Flex>

            {/* 第三行：描述文字 */}
            <EventDescription
              description={selectedEvent.description}
              textColor={textColor}
              minLength={200}
              noOfLines={10}
            />
          </VStack>
        </CardBody>
      </Card>
    );
  };

  return (
    <Card ref={ref} {...rest} bg={cardBg} borderColor={borderColor} mb={4}>
      {/* 标题部分 */}
      <CardHeader>
        <Flex justify="space-between" align="center">
          <VStack align="start" spacing={1}>
            <Heading size="md">
              <HStack>
                <TimeIcon />
                <Text>市场复盘</Text>
              </HStack>
            </Heading>
            <HStack fontSize="sm" color="gray.500">
              <Badge colorScheme="orange">复盘</Badge>
              <Badge colorScheme="purple">总结</Badge>
              <Badge colorScheme="gray">完整</Badge>
            </HStack>
          </VStack>
          <Text fontSize="xs" color="gray.500">
            最后更新: {lastUpdateTime?.toLocaleTimeString() || '未知'}
          </Text>
        </Flex>
      </CardHeader>

      {/* 主体内容 */}
      <CardBody>
        {/* Loading 状态 */}
        {loading && (
          <Center py={10}>
            <VStack>
              <Spinner size="xl" color="blue.500" thickness="4px" />
              <Text color="gray.500">正在加载复盘数据...</Text>
            </VStack>
          </Center>
        )}

        {/* Empty 状态 */}
        {!loading && (!events || events.length === 0) && (
          <Center py={10}>
            <VStack>
              <Text fontSize="lg" color="gray.500">暂无复盘数据</Text>
            </VStack>
          </Center>
        )}

        {/* 左右布局：事件列表 | 事件详情 */}
        {!loading && events && events.length > 0 && (
          <Grid templateColumns="1fr 2fr" gap={6} minH="500px">
            {/* 左侧：事件列表 (33.3%) */}
            <GridItem>
              <Box
                overflowY="auto"
                maxH="600px"
                pr={2}
                css={{
                  '&::-webkit-scrollbar': {
                    width: '6px',
                  },
                  '&::-webkit-scrollbar-track': {
                    background: useColorModeValue('#f1f1f1', '#2D3748'),
                    borderRadius: '10px',
                  },
                  '&::-webkit-scrollbar-thumb': {
                    background: useColorModeValue('#888', '#4A5568'),
                    borderRadius: '10px',
                  },
                  '&::-webkit-scrollbar-thumb:hover': {
                    background: useColorModeValue('#555', '#718096'),
                  },
                }}
              >
                <VStack align="stretch" spacing={2}>
                  {events.map((event, index) => (
                    <Box
                      key={event.id}
                      onClick={() => handleEventClick(event)}
                      cursor="pointer"
                      bg={selectedEvent?.id === event.id ? selectedBg : 'transparent'}
                      borderRadius="md"
                      transition="all 0.2s"
                      _hover={{ bg: selectedBg }}
                    >
                      <CompactEventCard
                        event={event}
                        index={index}
                        isFollowing={false}
                        followerCount={event.follower_count || 0}
                        onEventClick={() => handleEventClick(event)}
                        onTitleClick={(e) => {
                          e.preventDefault();
                          e.stopPropagation();
                          handleEventClick(event);
                        }}
                        onViewDetail={onViewDetail}
                        onToggleFollow={() => {}}
                        timelineStyle={getTimelineBoxStyle()}
                        borderColor={borderColor}
                      />
                    </Box>
                  ))}
                </VStack>
              </Box>
            </GridItem>

            {/* 右侧：事件详情 (66.7%) */}
            <GridItem>
              {renderEventDetail()}
            </GridItem>
          </Grid>
        )}
      </CardBody>
    </Card>
  );
});

MarketReviewCard.displayName = 'MarketReviewCard';

export default MarketReviewCard;