/**
 * 帖子卡片组件 - 类似小红书风格
 * 用于论坛主页的帖子展示
 */

import React from 'react';
import {
  Box,
  Image,
  Text,
  HStack,
  VStack,
  Avatar,
  Badge,
  IconButton,
  Flex,
  useColorModeValue,
} from '@chakra-ui/react';
import { motion } from 'framer-motion';
import { Heart, MessageCircle, Eye, TrendingUp } from 'lucide-react';
import { useNavigate } from 'react-router-dom';
import { forumColors } from '@theme/forumTheme';

const MotionBox = motion(Box);

const PostCard = ({ post }) => {
  const navigate = useNavigate();

  // 处理卡片点击
  const handleCardClick = () => {
    navigate(`/value-forum/post/${post.id}`);
  };

  // 格式化数字（1000 -> 1k）
  const formatNumber = (num) => {
    if (num >= 1000000) return `${(num / 1000000).toFixed(1)}M`;
    if (num >= 1000) return `${(num / 1000).toFixed(1)}K`;
    return num;
  };

  // 格式化时间
  const formatTime = (dateString) => {
    const date = new Date(dateString);
    const now = new Date();
    const diff = now - date;

    const minutes = Math.floor(diff / 60000);
    const hours = Math.floor(diff / 3600000);
    const days = Math.floor(diff / 86400000);

    if (minutes < 1) return '刚刚';
    if (minutes < 60) return `${minutes}分钟前`;
    if (hours < 24) return `${hours}小时前`;
    if (days < 7) return `${days}天前`;

    return date.toLocaleDateString('zh-CN', { month: '2-digit', day: '2-digit' });
  };

  return (
    <MotionBox
      bg={forumColors.background.card}
      borderRadius="xl"
      overflow="hidden"
      border="1px solid"
      borderColor={forumColors.border.default}
      cursor="pointer"
      onClick={handleCardClick}
      whileHover={{ y: -8, scale: 1.02 }}
      transition={{ duration: 0.3 }}
      _hover={{
        borderColor: forumColors.border.gold,
        boxShadow: forumColors.shadows.gold,
      }}
    >
      {/* 封面图片区域 */}
      {post.images && post.images.length > 0 && (
        <Box position="relative" overflow="hidden" h="200px">
          <Image
            src={post.images[0]}
            alt={post.title}
            w="100%"
            h="100%"
            objectFit="cover"
            transition="transform 0.3s"
            _groupHover={{ transform: 'scale(1.1)' }}
          />

          {/* 置顶标签 */}
          {post.is_pinned && (
            <Badge
              position="absolute"
              top="12px"
              right="12px"
              bg={forumColors.gradients.goldPrimary}
              color={forumColors.background.main}
              px="3"
              py="1"
              borderRadius="full"
              fontWeight="bold"
              fontSize="xs"
              display="flex"
              alignItems="center"
              gap="1"
            >
              <TrendingUp size={12} />
              置顶
            </Badge>
          )}
        </Box>
      )}

      {/* 内容区域 */}
      <VStack align="stretch" p="4" spacing="3">
        {/* 标题 */}
        <Text
          fontSize="md"
          fontWeight="600"
          color={forumColors.text.primary}
          noOfLines={2}
          lineHeight="1.4"
        >
          {post.title}
        </Text>

        {/* 内容预览 */}
        {post.content && (
          <Text
            fontSize="sm"
            color={forumColors.text.secondary}
            noOfLines={2}
            lineHeight="1.6"
          >
            {post.content}
          </Text>
        )}

        {/* 标签 */}
        {post.tags && post.tags.length > 0 && (
          <HStack spacing="2" flexWrap="wrap">
            {post.tags.slice(0, 3).map((tag, index) => (
              <Badge
                key={index}
                bg={forumColors.gradients.goldSubtle}
                color={forumColors.primary[500]}
                border="1px solid"
                borderColor={forumColors.border.gold}
                borderRadius="full"
                px="3"
                py="1"
                fontSize="xs"
                fontWeight="500"
              >
                #{tag}
              </Badge>
            ))}
          </HStack>
        )}

        {/* 底部信息栏 */}
        <Flex justify="space-between" align="center" pt="2">
          {/* 作者信息 */}
          <HStack spacing="2">
            <Avatar
              size="xs"
              name={post.author_name}
              src={post.author_avatar}
              bg={forumColors.gradients.goldPrimary}
              color={forumColors.background.main}
            />
            <Text fontSize="xs" color={forumColors.text.tertiary}>
              {post.author_name}
            </Text>
          </HStack>

          {/* 互动数据 */}
          <HStack spacing="4" fontSize="xs" color={forumColors.text.tertiary}>
            <HStack spacing="1">
              <Heart size={14} />
              <Text>{formatNumber(post.likes_count || 0)}</Text>
            </HStack>

            <HStack spacing="1">
              <MessageCircle size={14} />
              <Text>{formatNumber(post.comments_count || 0)}</Text>
            </HStack>

            <HStack spacing="1">
              <Eye size={14} />
              <Text>{formatNumber(post.views_count || 0)}</Text>
            </HStack>
          </HStack>
        </Flex>

        {/* 时间 */}
        <Text fontSize="xs" color={forumColors.text.muted} textAlign="right">
          {formatTime(post.created_at)}
        </Text>
      </VStack>
    </MotionBox>
  );
};

export default PostCard;