// src/views/AgentChat/index.js
// 超炫酷的 AI 投研助手 - HeroUI v3 现代深色主题版本
// 使用 Framer Motion 物理动画引擎 + 毛玻璃效果

import React, { useState, useEffect, useRef } from 'react';
import { motion, AnimatePresence } from 'framer-motion';
import {
  Box,
  Button,
  Input,
  Avatar,
  Badge,
  Divider,
  Spinner,
  Tooltip,
  Checkbox,
  CheckboxGroup,
  Kbd,
  Accordion,
  AccordionItem,
  AccordionButton,
  AccordionPanel,
  AccordionIcon,
  Tabs,
  TabList,
  TabPanels,
  Tab,
  TabPanel,
  useToast,
  VStack,
  HStack,
  Text,
  Flex,
  IconButton,
  useColorMode,
  Card,
  CardBody,
  Tag,
  TagLabel,
  TagCloseButton,
} from '@chakra-ui/react';
import { useAuth } from '@contexts/AuthContext';
import { logger } from '@utils/logger';
import axios from 'axios';

// 图标 - 使用 Lucide Icons
import {
  Send,
  Plus,
  Search,
  MessageSquare,
  Trash2,
  MoreVertical,
  RefreshCw,
  Download,
  Cpu,
  User,
  Zap,
  Clock,
  Settings,
  ChevronLeft,
  ChevronRight,
  Activity,
  Code,
  Database,
  TrendingUp,
  FileText,
  BookOpen,
  Menu,
  X,
  Check,
  Circle,
  Maximize2,
  Minimize2,
  Copy,
  ThumbsUp,
  ThumbsDown,
  Sparkles,
  Brain,
  Rocket,
  Paperclip,
  Image as ImageIcon,
  File,
  Calendar,
  Globe,
  DollarSign,
  Newspaper,
  BarChart3,
  PieChart,
  LineChart,
  Briefcase,
  Users,
} from 'lucide-react';

/**
 * Framer Motion 动画变体配置
 */
const animations = {
  slideInLeft: {
    initial: { x: -320, opacity: 0 },
    animate: {
      x: 0,
      opacity: 1,
      transition: {
        type: 'spring',
        stiffness: 300,
        damping: 30,
      },
    },
    exit: {
      x: -320,
      opacity: 0,
      transition: { duration: 0.2 },
    },
  },
  slideInRight: {
    initial: { x: 320, opacity: 0 },
    animate: {
      x: 0,
      opacity: 1,
      transition: {
        type: 'spring',
        stiffness: 300,
        damping: 30,
      },
    },
    exit: {
      x: 320,
      opacity: 0,
      transition: { duration: 0.2 },
    },
  },
  fadeInUp: {
    initial: { opacity: 0, y: 20 },
    animate: {
      opacity: 1,
      y: 0,
      transition: {
        type: 'spring',
        stiffness: 400,
        damping: 25,
      },
    },
  },
  staggerItem: {
    initial: { opacity: 0, y: 10 },
    animate: { opacity: 1, y: 0 },
  },
  staggerContainer: {
    animate: {
      transition: {
        staggerChildren: 0.05,
      },
    },
  },
  pressScale: {
    whileTap: { scale: 0.95 },
    whileHover: { scale: 1.05 },
  },
};

/**
 * 消息类型
 */
const MessageTypes = {
  USER: 'user',
  AGENT_THINKING: 'agent_thinking',
  AGENT_PLAN: 'agent_plan',
  AGENT_EXECUTING: 'agent_executing',
  AGENT_RESPONSE: 'agent_response',
  ERROR: 'error',
};

/**
 * 可用模型配置
 */
const AVAILABLE_MODELS = [
  {
    id: 'kimi-k2-thinking',
    name: 'Kimi K2 Thinking',
    description: '深度思考模型,适合复杂分析',
    icon: <Brain className="w-5 h-5" />,
    color: 'purple',
  },
  {
    id: 'kimi-k2',
    name: 'Kimi K2',
    description: '快速响应模型,适合简单查询',
    icon: <Zap className="w-5 h-5" />,
    color: 'blue',
  },
  {
    id: 'deepmoney',
    name: 'DeepMoney',
    description: '金融专业模型',
    icon: <TrendingUp className="w-5 h-5" />,
    color: 'green',
  },
];

/**
 * MCP 工具配置（完整列表）
 */
const MCP_TOOLS = [
  // 新闻搜索类
  {
    id: 'search_news',
    name: '全球新闻搜索',
    icon: <Globe className="w-4 h-4" />,
    category: '新闻资讯',
    description: '搜索全球新闻,支持关键词和日期过滤'
  },
  {
    id: 'search_china_news',
    name: '中国新闻搜索',
    icon: <Newspaper className="w-4 h-4" />,
    category: '新闻资讯',
    description: 'KNN语义搜索中国新闻'
  },
  {
    id: 'search_medical_news',
    name: '医疗健康新闻',
    icon: <Activity className="w-4 h-4" />,
    category: '新闻资讯',
    description: '医药、医疗设备、生物技术新闻'
  },

  // 概念板块类
  {
    id: 'search_concepts',
    name: '概念板块搜索',
    icon: <PieChart className="w-4 h-4" />,
    category: '概念板块',
    description: '搜索股票概念板块及相关股票'
  },
  {
    id: 'get_concept_details',
    name: '概念详情',
    icon: <FileText className="w-4 h-4" />,
    category: '概念板块',
    description: '获取概念板块详细信息'
  },
  {
    id: 'get_stock_concepts',
    name: '股票概念',
    icon: <BarChart3 className="w-4 h-4" />,
    category: '概念板块',
    description: '查询股票相关概念板块'
  },
  {
    id: 'get_concept_statistics',
    name: '概念统计',
    icon: <LineChart className="w-4 h-4" />,
    category: '概念板块',
    description: '涨幅榜、跌幅榜、活跃榜等'
  },

  // 涨停分析类
  {
    id: 'search_limit_up_stocks',
    name: '涨停股票搜索',
    icon: <TrendingUp className="w-4 h-4" />,
    category: '涨停分析',
    description: '搜索涨停股票,支持多条件筛选'
  },
  {
    id: 'get_daily_stock_analysis',
    name: '涨停日报',
    icon: <Calendar className="w-4 h-4" />,
    category: '涨停分析',
    description: '每日涨停股票分析报告'
  },

  // 研报路演类
  {
    id: 'search_research_reports',
    name: '研报搜索',
    icon: <BookOpen className="w-4 h-4" />,
    category: '研报路演',
    description: '搜索研究报告,支持语义搜索'
  },
  {
    id: 'search_roadshows',
    name: '路演活动',
    icon: <Briefcase className="w-4 h-4" />,
    category: '研报路演',
    description: '上市公司路演、投资者交流活动'
  },

  // 股票数据类
  {
    id: 'get_stock_basic_info',
    name: '股票基本信息',
    icon: <FileText className="w-4 h-4" />,
    category: '股票数据',
    description: '公司名称、行业、主营业务等'
  },
  {
    id: 'get_stock_financial_index',
    name: '财务指标',
    icon: <DollarSign className="w-4 h-4" />,
    category: '股票数据',
    description: 'EPS、ROE、营收增长率等'
  },
  {
    id: 'get_stock_trade_data',
    name: '交易数据',
    icon: <BarChart3 className="w-4 h-4" />,
    category: '股票数据',
    description: '价格、成交量、涨跌幅等'
  },
  {
    id: 'get_stock_balance_sheet',
    name: '资产负债表',
    icon: <PieChart className="w-4 h-4" />,
    category: '股票数据',
    description: '资产、负债、所有者权益'
  },
  {
    id: 'get_stock_cashflow',
    name: '现金流量表',
    icon: <LineChart className="w-4 h-4" />,
    category: '股票数据',
    description: '经营、投资、筹资现金流'
  },
  {
    id: 'search_stocks_by_criteria',
    name: '条件选股',
    icon: <Search className="w-4 h-4" />,
    category: '股票数据',
    description: '按行业、地区、市值筛选'
  },
  {
    id: 'get_stock_comparison',
    name: '股票对比',
    icon: <BarChart3 className="w-4 h-4" />,
    category: '股票数据',
    description: '多只股票财务指标对比'
  },

  // 用户数据类
  {
    id: 'get_user_watchlist',
    name: '自选股列表',
    icon: <Users className="w-4 h-4" />,
    category: '用户数据',
    description: '用户关注的股票及行情'
  },
  {
    id: 'get_user_following_events',
    name: '关注事件',
    icon: <Activity className="w-4 h-4" />,
    category: '用户数据',
    description: '用户关注的重大事件'
  },
];

// 按类别分组工具
const TOOL_CATEGORIES = {
  '新闻资讯': MCP_TOOLS.filter(t => t.category === '新闻资讯'),
  '概念板块': MCP_TOOLS.filter(t => t.category === '概念板块'),
  '涨停分析': MCP_TOOLS.filter(t => t.category === '涨停分析'),
  '研报路演': MCP_TOOLS.filter(t => t.category === '研报路演'),
  '股票数据': MCP_TOOLS.filter(t => t.category === '股票数据'),
  '用户数据': MCP_TOOLS.filter(t => t.category === '用户数据'),
};

/**
 * Agent Chat - 主组件（HeroUI v3 深色主题）
 */
const AgentChat = () => {
  const { user } = useAuth();
  const toast = useToast();
  const { setColorMode } = useColorMode();

  // 会话管理
  const [sessions, setSessions] = useState([]);
  const [currentSessionId, setCurrentSessionId] = useState(null);
  const [isLoadingSessions, setIsLoadingSessions] = useState(false);

  // 消息管理
  const [messages, setMessages] = useState([]);
  const [inputValue, setInputValue] = useState('');
  const [isProcessing, setIsProcessing] = useState(false);

  // UI 状态
  const [searchQuery, setSearchQuery] = useState('');
  const [selectedModel, setSelectedModel] = useState('kimi-k2-thinking');
  const [selectedTools, setSelectedTools] = useState([
    'search_news',
    'search_china_news',
    'search_concepts',
    'search_limit_up_stocks',
    'search_research_reports',
  ]);
  const [isLeftSidebarOpen, setIsLeftSidebarOpen] = useState(true);
  const [isRightSidebarOpen, setIsRightSidebarOpen] = useState(true);

  // 文件上传
  const [uploadedFiles, setUploadedFiles] = useState([]);
  const fileInputRef = useRef(null);

  // Refs
  const messagesEndRef = useRef(null);
  const inputRef = useRef(null);

  // ==================== 启用深色模式 ====================
  useEffect(() => {
    // 为 AgentChat 页面强制启用深色模式
    setColorMode('dark');
    document.documentElement.classList.add('dark');

    return () => {
      // 组件卸载时不移除,让其他页面自己控制
      // document.documentElement.classList.remove('dark');
    };
  }, [setColorMode]);

  // ==================== API 调用函数 ====================

  const loadSessions = async () => {
    if (!user?.id) return;
    setIsLoadingSessions(true);
    try {
      const response = await axios.get('/mcp/agent/sessions', {
        params: { user_id: user.id, limit: 50 },
      });
      if (response.data.success) {
        setSessions(response.data.data);
      }
    } catch (error) {
      logger.error('加载会话列表失败', error);
    } finally {
      setIsLoadingSessions(false);
    }
  };

  const loadSessionHistory = async (sessionId) => {
    if (!sessionId) return;
    try {
      const response = await axios.get(`/mcp/agent/history/${sessionId}`, {
        params: { limit: 100 },
      });
      if (response.data.success) {
        const history = response.data.data;
        const formattedMessages = history.map((msg, idx) => ({
          id: `${sessionId}-${idx}`,
          type: msg.message_type === 'user' ? MessageTypes.USER : MessageTypes.AGENT_RESPONSE,
          content: msg.message,
          plan: msg.plan ? JSON.parse(msg.plan) : null,
          stepResults: msg.steps ? JSON.parse(msg.steps) : null,
          timestamp: msg.timestamp,
        }));
        setMessages(formattedMessages);
      }
    } catch (error) {
      logger.error('加载会话历史失败', error);
    }
  };

  const createNewSession = () => {
    setCurrentSessionId(null);
    setMessages([
      {
        id: Date.now(),
        type: MessageTypes.AGENT_RESPONSE,
        content: `你好${user?.nickname || ''}！👋\n\n我是**价小前**,你的 AI 投研助手。\n\n**我能做什么？**\n• 📊 全面分析股票基本面和技术面\n• 🔥 追踪市场热点和涨停板块\n• 📈 研究行业趋势和投资机会\n• 📰 汇总最新财经新闻和研报\n\n直接输入你的问题开始探索！`,
        timestamp: new Date().toISOString(),
      },
    ]);
  };

  const switchSession = (sessionId) => {
    setCurrentSessionId(sessionId);
    loadSessionHistory(sessionId);
  };

  const handleSendMessage = async () => {
    if (!inputValue.trim() || isProcessing) return;

    const userMessage = {
      type: MessageTypes.USER,
      content: inputValue,
      timestamp: new Date().toISOString(),
      files: uploadedFiles.length > 0 ? uploadedFiles : undefined,
    };

    addMessage(userMessage);
    const userInput = inputValue;
    setInputValue('');
    setUploadedFiles([]);
    setIsProcessing(true);

    try {
      addMessage({
        type: MessageTypes.AGENT_THINKING,
        content: '正在分析你的问题...',
        timestamp: new Date().toISOString(),
      });

      const response = await axios.post('/mcp/agent/chat', {
        message: userInput,
        conversation_history: messages
          .filter((m) => m.type === MessageTypes.USER || m.type === MessageTypes.AGENT_RESPONSE)
          .map((m) => ({
            isUser: m.type === MessageTypes.USER,
            content: m.content,
          })),
        user_id: user?.id || 'anonymous',
        user_nickname: user?.nickname || '匿名用户',
        user_avatar: user?.avatar || '',
        subscription_type: user?.subscription_type || 'free',
        session_id: currentSessionId,
        model: selectedModel,
        tools: selectedTools,
        files: uploadedFiles.length > 0 ? uploadedFiles : undefined,
      });

      setMessages((prev) => prev.filter((m) => m.type !== MessageTypes.AGENT_THINKING));

      if (response.data.success) {
        const data = response.data;
        if (data.session_id && !currentSessionId) {
          setCurrentSessionId(data.session_id);
        }

        if (data.plan) {
          addMessage({
            type: MessageTypes.AGENT_PLAN,
            content: '已制定执行计划',
            plan: data.plan,
            timestamp: new Date().toISOString(),
          });
        }

        if (data.steps && data.steps.length > 0) {
          addMessage({
            type: MessageTypes.AGENT_EXECUTING,
            content: '正在执行步骤...',
            plan: data.plan,
            stepResults: data.steps,
            timestamp: new Date().toISOString(),
          });
        }

        setMessages((prev) => prev.filter((m) => m.type !== MessageTypes.AGENT_EXECUTING));

        addMessage({
          type: MessageTypes.AGENT_RESPONSE,
          content: data.final_answer || data.message || '处理完成',
          plan: data.plan,
          stepResults: data.steps,
          metadata: data.metadata,
          timestamp: new Date().toISOString(),
        });

        loadSessions();
      }
    } catch (error) {
      logger.error('Agent chat error', error);
      setMessages((prev) =>
        prev.filter(
          (m) => m.type !== MessageTypes.AGENT_THINKING && m.type !== MessageTypes.AGENT_EXECUTING
        )
      );

      const errorMessage = error.response?.data?.error || error.message || '处理失败';
      addMessage({
        type: MessageTypes.ERROR,
        content: `处理失败：${errorMessage}`,
        timestamp: new Date().toISOString(),
      });

      toast({
        title: '处理失败',
        description: errorMessage,
        status: 'error',
        duration: 5000,
      });
    } finally {
      setIsProcessing(false);
    }
  };

  // 文件上传处理
  const handleFileSelect = (event) => {
    const files = Array.from(event.target.files || []);
    const fileData = files.map(file => ({
      name: file.name,
      size: file.size,
      type: file.type,
      // 实际上传时需要转换为 base64 或上传到服务器
      url: URL.createObjectURL(file),
    }));
    setUploadedFiles(prev => [...prev, ...fileData]);
  };

  const removeFile = (index) => {
    setUploadedFiles(prev => prev.filter((_, i) => i !== index));
  };

  const addMessage = (message) => {
    setMessages((prev) => [
      ...prev,
      {
        id: Date.now() + Math.random(),
        ...message,
      },
    ]);
  };

  const handleKeyPress = (e) => {
    if (e.key === 'Enter' && !e.shiftKey) {
      e.preventDefault();
      handleSendMessage();
    }
  };

  useEffect(() => {
    loadSessions();
    createNewSession();
  }, [user]);

  useEffect(() => {
    messagesEndRef.current?.scrollIntoView({ behavior: 'smooth' });
  }, [messages]);

  // ==================== 按日期分组会话 ====================
  const groupSessionsByDate = (sessions) => {
    const today = new Date();
    const yesterday = new Date(today);
    yesterday.setDate(yesterday.getDate() - 1);
    const weekAgo = new Date(today);
    weekAgo.setDate(weekAgo.getDate() - 7);

    const groups = {
      today: [],
      yesterday: [],
      thisWeek: [],
      older: [],
    };

    sessions.forEach(session => {
      const sessionDate = new Date(session.created_at || session.timestamp);
      const daysDiff = Math.floor((today - sessionDate) / (1000 * 60 * 60 * 24));

      if (daysDiff === 0) {
        groups.today.push(session);
      } else if (daysDiff === 1) {
        groups.yesterday.push(session);
      } else if (daysDiff <= 7) {
        groups.thisWeek.push(session);
      } else {
        groups.older.push(session);
      }
    });

    return groups;
  };

  const sessionGroups = groupSessionsByDate(sessions);
  const filteredSessions = searchQuery
    ? sessions.filter((s) =>
        s.title?.toLowerCase().includes(searchQuery.toLowerCase()) ||
        s.session_id?.toLowerCase().includes(searchQuery.toLowerCase())
      )
    : sessions;

  const quickQuestions = [
    { text: '今日涨停板块分析', emoji: '🔥' },
    { text: '新能源概念机会', emoji: '⚡' },
    { text: '半导体行业动态', emoji: '💾' },
    { text: '本周热门研报', emoji: '📊' },
  ];

  return (
    <Box h="100%" position="relative" overflow="hidden" zIndex={0}>
      {/* 背景渐变层 */}
      <Box
        position="absolute"
        top={0}
        left={0}
        right={0}
        bottom={0}
        bgGradient="linear(to-br, gray.900, gray.800, purple.900)"
        zIndex={0}
      />

      {/* 背景装饰光效 */}
      <Box
        position="absolute"
        top="0"
        right="-20%"
        width="600px"
        height="600px"
        bgGradient="radial(circle, purple.600, transparent)"
        opacity="0.15"
        filter="blur(100px)"
        pointerEvents="none"
        zIndex={0}
      />
      <Box
        position="absolute"
        bottom="-30%"
        left="-10%"
        width="500px"
        height="500px"
        bgGradient="radial(circle, blue.600, transparent)"
        opacity="0.1"
        filter="blur(100px)"
        pointerEvents="none"
        zIndex={0}
      />

      <Flex h="calc(100vh - 72px)" overflow="hidden" position="relative" zIndex={1}>
        {/* 左侧栏 - 深色毛玻璃 */}
        <AnimatePresence>
          {isLeftSidebarOpen && (
            <motion.div
              style={{ width: '320px', display: 'flex', flexDirection: 'column' }}
              initial="initial"
              animate="animate"
              exit="exit"
              variants={animations.slideInLeft}
            >
              <Box
                w="320px"
                display="flex"
                flexDirection="column"
                bg="rgba(17, 24, 39, 0.8)"
                backdropFilter="blur(20px) saturate(180%)"
                borderRight="1px solid"
                borderColor="rgba(255, 255, 255, 0.1)"
                boxShadow="4px 0 24px rgba(0, 0, 0, 0.3)"
              >
                <Box p={4} borderBottom="1px solid" borderColor="rgba(255, 255, 255, 0.1)">
                  <HStack justify="space-between" mb={3}>
                    <HStack spacing={2}>
                      <MessageSquare className="w-5 h-5" color="#60A5FA" />
                      <Text
                        fontWeight="semibold"
                        bgGradient="linear(to-r, blue.300, purple.300)"
                        bgClip="text"
                        fontSize="md"
                      >
                        对话历史
                      </Text>
                    </HStack>
                    <HStack spacing={2}>
                      <Tooltip label="新建对话">
                        <motion.div whileHover={{ scale: 1.1 }} whileTap={{ scale: 0.9 }}>
                          <IconButton
                            size="sm"
                            variant="ghost"
                            icon={<Plus className="w-4 h-4" />}
                            onClick={createNewSession}
                            bg="rgba(255, 255, 255, 0.05)"
                            color="gray.300"
                            backdropFilter="blur(10px)"
                            border="1px solid"
                            borderColor="rgba(255, 255, 255, 0.1)"
                            _hover={{
                              bg: "rgba(59, 130, 246, 0.2)",
                              borderColor: "blue.400",
                              color: "blue.300",
                              boxShadow: "0 0 12px rgba(59, 130, 246, 0.3)"
                            }}
                          />
                        </motion.div>
                      </Tooltip>
                      <Tooltip label="收起侧边栏">
                        <motion.div whileHover={{ scale: 1.1 }} whileTap={{ scale: 0.9 }}>
                          <IconButton
                            size="sm"
                            variant="ghost"
                            icon={<ChevronLeft className="w-4 h-4" />}
                            onClick={() => setIsLeftSidebarOpen(false)}
                            bg="rgba(255, 255, 255, 0.05)"
                            color="gray.300"
                            backdropFilter="blur(10px)"
                            border="1px solid"
                            borderColor="rgba(255, 255, 255, 0.1)"
                            _hover={{
                              bg: "rgba(255, 255, 255, 0.1)",
                              borderColor: "purple.400",
                              color: "white"
                            }}
                          />
                        </motion.div>
                      </Tooltip>
                    </HStack>
                  </HStack>

                  <Box position="relative">
                    <Box position="absolute" left={3} top="50%" transform="translateY(-50%)" zIndex={1}>
                      <Search className="w-4 h-4" color="#9CA3AF" />
                    </Box>
                    <Input
                      placeholder="搜索对话..."
                      value={searchQuery}
                      onChange={(e) => setSearchQuery(e.target.value)}
                      size="sm"
                      variant="outline"
                      pl={10}
                      bg="rgba(255, 255, 255, 0.05)"
                      backdropFilter="blur(10px)"
                      border="1px solid"
                      borderColor="rgba(255, 255, 255, 0.1)"
                      color="white"
                      _placeholder={{ color: "gray.500" }}
                      _hover={{
                        borderColor: "rgba(255, 255, 255, 0.2)"
                      }}
                      _focus={{
                        borderColor: "purple.400",
                        boxShadow: "0 0 0 1px var(--chakra-colors-purple-400), 0 0 12px rgba(139, 92, 246, 0.3)",
                        bg: "rgba(255, 255, 255, 0.08)"
                      }}
                    />
                  </Box>
                </Box>

                <Box flex={1} p={3} overflowY="auto">
                  {/* 按日期分组显示会话 */}
                  {sessionGroups.today.length > 0 && (
                    <Box mb={4}>
                      <Text fontSize="xs" fontWeight="semibold" color="gray.500" mb={2} px={2}>今天</Text>
                      <VStack spacing={2} align="stretch">
                        {sessionGroups.today.map((session, idx) => (
                          <motion.div
                            key={session.session_id}
                            custom={idx}
                            initial={{ opacity: 0, x: -20 }}
                            animate={{ opacity: 1, x: 0 }}
                            transition={{ delay: idx * 0.05 }}
                          >
                            <SessionCard
                              session={session}
                              isActive={currentSessionId === session.session_id}
                              onPress={() => switchSession(session.session_id)}
                            />
                          </motion.div>
                        ))}
                      </VStack>
                    </Box>
                  )}

                  {sessionGroups.yesterday.length > 0 && (
                    <Box mb={4}>
                      <Text fontSize="xs" fontWeight="semibold" color="gray.500" mb={2} px={2}>昨天</Text>
                      <VStack spacing={2} align="stretch">
                        {sessionGroups.yesterday.map((session) => (
                          <SessionCard
                            key={session.session_id}
                            session={session}
                            isActive={currentSessionId === session.session_id}
                            onPress={() => switchSession(session.session_id)}
                          />
                        ))}
                      </VStack>
                    </Box>
                  )}

                  {sessionGroups.thisWeek.length > 0 && (
                    <Box mb={4}>
                      <Text fontSize="xs" fontWeight="semibold" color="gray.500" mb={2} px={2}>本周</Text>
                      <VStack spacing={2} align="stretch">
                        {sessionGroups.thisWeek.map((session) => (
                          <SessionCard
                            key={session.session_id}
                            session={session}
                            isActive={currentSessionId === session.session_id}
                            onPress={() => switchSession(session.session_id)}
                          />
                        ))}
                      </VStack>
                    </Box>
                  )}

                  {sessionGroups.older.length > 0 && (
                    <Box mb={4}>
                      <Text fontSize="xs" fontWeight="semibold" color="gray.500" mb={2} px={2}>更早</Text>
                      <VStack spacing={2} align="stretch">
                        {sessionGroups.older.map((session) => (
                          <SessionCard
                            key={session.session_id}
                            session={session}
                            isActive={currentSessionId === session.session_id}
                            onPress={() => switchSession(session.session_id)}
                          />
                        ))}
                      </VStack>
                    </Box>
                  )}

                  {isLoadingSessions && (
                    <Flex justify="center" p={4}>
                      <Spinner size="md" color="purple.500" emptyColor="gray.700" thickness="3px" speed="0.65s" />
                    </Flex>
                  )}

                  {sessions.length === 0 && !isLoadingSessions && (
                    <VStack textAlign="center" py={8} color="gray.500" fontSize="sm" spacing={2}>
                      <MessageSquare className="w-8 h-8" style={{ opacity: 0.5, margin: '0 auto' }} />
                      <Text>还没有对话历史</Text>
                      <Text fontSize="xs">开始一个新对话吧！</Text>
                    </VStack>
                  )}
                </Box>

                <Box p={4} borderTop="1px solid" borderColor="rgba(255, 255, 255, 0.1)">
                  <HStack spacing={3}>
                    <Avatar
                      src={user?.avatar}
                      name={user?.nickname}
                      size="sm"
                      bgGradient="linear(to-br, blue.500, purple.600)"
                      boxShadow="0 0 12px rgba(139, 92, 246, 0.4)"
                    />
                    <Box flex={1} minW={0}>
                      <Text fontSize="sm" fontWeight="medium" color="gray.100" noOfLines={1}>
                        {user?.nickname || '未登录'}
                      </Text>
                      <Badge
                        bgGradient="linear(to-r, blue.500, purple.500)"
                        color="white"
                        px={2}
                        py={0.5}
                        borderRadius="full"
                        fontSize="xs"
                        fontWeight="semibold"
                        textTransform="none"
                      >
                        {user?.subscription_type || 'free'}
                      </Badge>
                    </Box>
                  </HStack>
                </Box>
              </Box>
            </motion.div>
          )}
        </AnimatePresence>

        {/* 中间主聊天区域 */}
        <Flex flex={1} direction="column">
          {/* 顶部标题栏 - 深色毛玻璃 */}
          <Box
            bg="rgba(17, 24, 39, 0.8)"
            backdropFilter="blur(20px) saturate(180%)"
            borderBottom="1px solid"
            borderColor="rgba(255, 255, 255, 0.1)"
            px={6}
            py={4}
            boxShadow="0 8px 32px 0 rgba(31, 38, 135, 0.37)"
          >
            <Flex align="center" justify="space-between">
              <HStack spacing={4}>
                {!isLeftSidebarOpen && (
                  <motion.div whileHover={{ scale: 1.1 }} whileTap={{ scale: 0.9 }}>
                    <IconButton
                      size="sm"
                      variant="ghost"
                      icon={<Menu className="w-4 h-4" />}
                      onClick={() => setIsLeftSidebarOpen(true)}
                      bg="rgba(255, 255, 255, 0.05)"
                      color="gray.400"
                      backdropFilter="blur(10px)"
                      border="1px solid"
                      borderColor="rgba(255, 255, 255, 0.1)"
                      _hover={{
                        bg: "rgba(255, 255, 255, 0.1)",
                        color: "white"
                      }}
                    />
                  </motion.div>
                )}

                <motion.div
                  animate={{ rotate: 360 }}
                  transition={{ duration: 3, repeat: Infinity, ease: 'linear' }}
                >
                  <Avatar
                    icon={<Cpu className="w-6 h-6" />}
                    bgGradient="linear(to-br, purple.500, pink.500)"
                    boxShadow="0 0 20px rgba(236, 72, 153, 0.5)"
                  />
                </motion.div>

                <Box>
                  <Text
                    fontSize="xl"
                    fontWeight="bold"
                    bgGradient="linear(to-r, blue.400, purple.400)"
                    bgClip="text"
                    letterSpacing="tight"
                  >
                    价小前投研 AI
                  </Text>
                  <HStack spacing={2} mt={1}>
                    <Badge
                      bgGradient="linear(to-r, green.500, teal.500)"
                      color="white"
                      px={2}
                      py={1}
                      borderRadius="md"
                      display="flex"
                      alignItems="center"
                      gap={1}
                      boxShadow="0 2px 8px rgba(16, 185, 129, 0.3)"
                    >
                      <Zap className="w-3 h-3" />
                      智能分析
                    </Badge>
                    <Badge
                      bgGradient="linear(to-r, purple.500, pink.500)"
                      color="white"
                      px={2}
                      py={1}
                      borderRadius="md"
                      boxShadow="0 2px 8px rgba(139, 92, 246, 0.3)"
                    >
                      {AVAILABLE_MODELS.find((m) => m.id === selectedModel)?.name}
                    </Badge>
                  </HStack>
                </Box>
              </HStack>

              <HStack spacing={2}>
                <Tooltip label="清空对话">
                  <motion.div whileHover={{ scale: 1.1 }} whileTap={{ scale: 0.9 }}>
                    <IconButton
                      size="sm"
                      variant="ghost"
                      icon={<RefreshCw className="w-4 h-4" />}
                      onClick={createNewSession}
                      bg="rgba(255, 255, 255, 0.05)"
                      color="gray.400"
                      backdropFilter="blur(10px)"
                      border="1px solid"
                      borderColor="rgba(255, 255, 255, 0.1)"
                      _hover={{
                        bg: "rgba(255, 255, 255, 0.1)",
                        color: "white",
                        borderColor: "purple.400",
                        boxShadow: "0 0 12px rgba(139, 92, 246, 0.3)"
                      }}
                    />
                  </motion.div>
                </Tooltip>
                {!isRightSidebarOpen && (
                  <motion.div whileHover={{ scale: 1.1 }} whileTap={{ scale: 0.9 }}>
                    <IconButton
                      size="sm"
                      variant="ghost"
                      icon={<Settings className="w-4 h-4" />}
                      onClick={() => setIsRightSidebarOpen(true)}
                      bg="rgba(255, 255, 255, 0.05)"
                      color="gray.400"
                      backdropFilter="blur(10px)"
                      border="1px solid"
                      borderColor="rgba(255, 255, 255, 0.1)"
                      _hover={{
                        bg: "rgba(255, 255, 255, 0.1)",
                        color: "white"
                      }}
                    />
                  </motion.div>
                )}
              </HStack>
            </Flex>
          </Box>

          {/* 消息列表 */}
          <Box
            flex={1}
            p={6}
            bgGradient="linear(to-b, rgba(17, 24, 39, 0.5), rgba(17, 24, 39, 0.3))"
            overflowY="auto"
          >
            <motion.div
              style={{ maxWidth: '896px', margin: '0 auto' }}
              variants={animations.staggerContainer}
              initial="initial"
              animate="animate"
            >
              <VStack spacing={4} align="stretch">
                <AnimatePresence mode="popLayout">
                  {messages.map((message) => (
                    <motion.div
                      key={message.id}
                      variants={animations.fadeInUp}
                      initial="initial"
                      animate="animate"
                      exit={{ opacity: 0, y: -20 }}
                      layout
                    >
                      <MessageRenderer message={message} userAvatar={user?.avatar} />
                    </motion.div>
                  ))}
                </AnimatePresence>
                <div ref={messagesEndRef} />
              </VStack>
            </motion.div>
          </Box>

          {/* 快捷问题 */}
          <AnimatePresence>
            {messages.length <= 2 && !isProcessing && (
              <motion.div
                variants={animations.fadeInUp}
                initial="initial"
                animate="animate"
                exit={{ opacity: 0, y: 20 }}
              >
                <Box px={6} py={3}>
                  <Box maxW="896px" mx="auto">
                    <HStack fontSize="xs" color="gray.500" mb={2} fontWeight="medium" spacing={1}>
                      <Sparkles className="w-3 h-3" />
                      <Text>快速开始</Text>
                    </HStack>
                    <Box display="grid" gridTemplateColumns="repeat(2, 1fr)" gap={2}>
                      {quickQuestions.map((question, idx) => (
                        <motion.div
                          key={idx}
                          whileHover={{ scale: 1.02, y: -2 }}
                          whileTap={{ scale: 0.98 }}
                          transition={{ type: "spring", stiffness: 400, damping: 17 }}
                        >
                          <Button
                            variant="outline"
                            w="full"
                            justifyContent="flex-start"
                            h="auto"
                            py={3}
                            bg="rgba(255, 255, 255, 0.05)"
                            backdropFilter="blur(12px)"
                            border="1px solid"
                            borderColor="rgba(255, 255, 255, 0.1)"
                            color="gray.300"
                            _hover={{
                              bg: "rgba(59, 130, 246, 0.15)",
                              borderColor: "blue.400",
                              boxShadow: "0 4px 12px rgba(59, 130, 246, 0.3)",
                              color: "white"
                            }}
                            onClick={() => {
                              setInputValue(question.text);
                              inputRef.current?.focus();
                            }}
                          >
                            <Text mr={2}>{question.emoji}</Text>
                            <Text>{question.text}</Text>
                          </Button>
                        </motion.div>
                      ))}
                    </Box>
                  </Box>
                </Box>
              </motion.div>
            )}
          </AnimatePresence>

          {/* 输入栏 - 深色毛玻璃 */}
          <Box
            bg="rgba(17, 24, 39, 0.8)"
            backdropFilter="blur(20px) saturate(180%)"
            borderTop="1px solid"
            borderColor="rgba(255, 255, 255, 0.1)"
            px={6}
            py={4}
            boxShadow="0 -8px 32px 0 rgba(31, 38, 135, 0.37)"
          >
            <Box maxW="896px" mx="auto">
              {/* 已上传文件预览 */}
              {uploadedFiles.length > 0 && (
                <HStack mb={3} flexWrap="wrap" spacing={2}>
                  {uploadedFiles.map((file, idx) => (
                    <motion.div
                      key={idx}
                      initial={{ opacity: 0, scale: 0.8 }}
                      animate={{ opacity: 1, scale: 1 }}
                      exit={{ opacity: 0, scale: 0.8 }}
                    >
                      <Tag
                        size="md"
                        variant="subtle"
                        bg="rgba(255, 255, 255, 0.05)"
                        backdropFilter="blur(10px)"
                        borderColor="rgba(255, 255, 255, 0.1)"
                        borderWidth={1}
                      >
                        <TagLabel color="gray.300">{file.name}</TagLabel>
                        <TagCloseButton onClick={() => removeFile(idx)} color="gray.400" />
                      </Tag>
                    </motion.div>
                  ))}
                </HStack>
              )}

              <HStack spacing={2}>
                <input
                  ref={fileInputRef}
                  type="file"
                  multiple
                  accept="image/*,.pdf,.doc,.docx,.txt"
                  onChange={handleFileSelect}
                  style={{ display: 'none' }}
                />

                <Tooltip label="上传文件">
                  <motion.div whileHover={{ scale: 1.05 }} whileTap={{ scale: 0.95 }}>
                    <IconButton
                      variant="ghost"
                      size="lg"
                      icon={<Paperclip className="w-5 h-5" />}
                      onClick={() => fileInputRef.current?.click()}
                      bg="rgba(255, 255, 255, 0.05)"
                      color="gray.300"
                      backdropFilter="blur(10px)"
                      border="1px solid"
                      borderColor="rgba(255, 255, 255, 0.1)"
                      _hover={{
                        bg: "rgba(255, 255, 255, 0.1)",
                        borderColor: "purple.400",
                        color: "white",
                        boxShadow: "0 0 12px rgba(139, 92, 246, 0.3)"
                      }}
                    />
                  </motion.div>
                </Tooltip>

                <Tooltip label="上传图片">
                  <motion.div whileHover={{ scale: 1.05 }} whileTap={{ scale: 0.95 }}>
                    <IconButton
                      variant="ghost"
                      size="lg"
                      icon={<ImageIcon className="w-5 h-5" />}
                      onClick={() => {
                        fileInputRef.current?.setAttribute('accept', 'image/*');
                        fileInputRef.current?.click();
                      }}
                      bg="rgba(255, 255, 255, 0.05)"
                      color="gray.300"
                      backdropFilter="blur(10px)"
                      border="1px solid"
                      borderColor="rgba(255, 255, 255, 0.1)"
                      _hover={{
                        bg: "rgba(255, 255, 255, 0.1)",
                        borderColor: "purple.400",
                        color: "white",
                        boxShadow: "0 0 12px rgba(139, 92, 246, 0.3)"
                      }}
                    />
                  </motion.div>
                </Tooltip>

                <Input
                  ref={inputRef}
                  value={inputValue}
                  onChange={(e) => setInputValue(e.target.value)}
                  onKeyDown={handleKeyPress}
                  placeholder="输入你的问题... (Enter 发送, Shift+Enter 换行)"
                  isDisabled={isProcessing}
                  size="lg"
                  variant="outline"
                  borderWidth={2}
                  bg="rgba(255, 255, 255, 0.05)"
                  backdropFilter="blur(10px)"
                  border="1px solid"
                  borderColor="rgba(255, 255, 255, 0.1)"
                  color="white"
                  _placeholder={{ color: "gray.500" }}
                  _hover={{
                    borderColor: "rgba(255, 255, 255, 0.2)"
                  }}
                  _focus={{
                    borderColor: "purple.400",
                    boxShadow: "0 0 0 1px var(--chakra-colors-purple-400), 0 0 12px rgba(139, 92, 246, 0.3)",
                    bg: "rgba(255, 255, 255, 0.08)"
                  }}
                />

                <motion.div
                  whileHover={{ scale: 1.05 }}
                  whileTap={{ scale: 0.95 }}
                  transition={{ type: "spring", stiffness: 400, damping: 17 }}
                >
                  <IconButton
                    size="lg"
                    icon={!isProcessing && <Send className="w-5 h-5" />}
                    onClick={handleSendMessage}
                    isLoading={isProcessing}
                    isDisabled={!inputValue.trim() || isProcessing}
                    bgGradient="linear(to-r, blue.500, purple.600)"
                    color="white"
                    _hover={{
                      bgGradient: "linear(to-r, blue.600, purple.700)",
                      boxShadow: "0 8px 20px rgba(139, 92, 246, 0.4)"
                    }}
                    _active={{
                      transform: "translateY(0)",
                      boxShadow: "0 4px 12px rgba(139, 92, 246, 0.3)"
                    }}
                  />
                </motion.div>
              </HStack>

              <HStack spacing={4} mt={2} fontSize="xs" color="gray.500">
                <HStack spacing={1}>
                  <Kbd bg="rgba(255, 255, 255, 0.05)" color="gray.400" borderColor="rgba(255, 255, 255, 0.1)">Enter</Kbd>
                  <Text>发送</Text>
                </HStack>
                <HStack spacing={1}>
                  <Kbd bg="rgba(255, 255, 255, 0.05)" color="gray.400" borderColor="rgba(255, 255, 255, 0.1)">Shift</Kbd>
                  <Text>+</Text>
                  <Kbd bg="rgba(255, 255, 255, 0.05)" color="gray.400" borderColor="rgba(255, 255, 255, 0.1)">Enter</Kbd>
                  <Text>换行</Text>
                </HStack>
              </HStack>
            </Box>
          </Box>
        </Flex>

        {/* 右侧栏 - 深色配置中心 */}
        <AnimatePresence>
          {isRightSidebarOpen && (
            <motion.div
              style={{ width: '320px', display: 'flex', flexDirection: 'column' }}
              initial="initial"
              animate="animate"
              exit="exit"
              variants={animations.slideInRight}
            >
              <Box
                w="320px"
                display="flex"
                flexDirection="column"
                bg="rgba(17, 24, 39, 0.8)"
                backdropFilter="blur(20px) saturate(180%)"
                borderLeft="1px solid"
                borderColor="rgba(255, 255, 255, 0.1)"
                boxShadow="-4px 0 24px rgba(0, 0, 0, 0.3)"
              >
                <Box p={4} borderBottom="1px solid" borderColor="rgba(255, 255, 255, 0.1)">
                  <HStack justify="space-between">
                    <HStack spacing={2}>
                      <Settings className="w-5 h-5" color="#C084FC" />
                      <Text
                        fontWeight="semibold"
                        bgGradient="linear(to-r, purple.300, pink.300)"
                        bgClip="text"
                        fontSize="md"
                      >
                        配置中心
                      </Text>
                    </HStack>
                    <Tooltip label="收起侧边栏">
                      <motion.div whileHover={{ scale: 1.1 }} whileTap={{ scale: 0.9 }}>
                        <IconButton
                          size="sm"
                          variant="ghost"
                          icon={<ChevronRight className="w-4 h-4" />}
                          onClick={() => setIsRightSidebarOpen(false)}
                          bg="rgba(255, 255, 255, 0.05)"
                          color="gray.300"
                          backdropFilter="blur(10px)"
                          border="1px solid"
                          borderColor="rgba(255, 255, 255, 0.1)"
                          _hover={{
                            bg: "rgba(255, 255, 255, 0.1)",
                            borderColor: "purple.400",
                            color: "white"
                          }}
                        />
                      </motion.div>
                    </Tooltip>
                  </HStack>
                </Box>

                <Box flex={1} overflowY="auto">
                  <Tabs colorScheme="purple" variant="line">
                    <TabList px={4} borderBottom="1px solid" borderColor="rgba(255, 255, 255, 0.1)">
                      <Tab
                        color="gray.400"
                        _selected={{
                          color: "purple.400",
                          borderColor: "purple.500",
                          boxShadow: "0 2px 8px rgba(139, 92, 246, 0.3)"
                        }}
                      >
                        <HStack spacing={2}>
                          <Cpu className="w-4 h-4" />
                          <Text>模型</Text>
                        </HStack>
                      </Tab>
                      <Tab
                        color="gray.400"
                        _selected={{
                          color: "purple.400",
                          borderColor: "purple.500",
                          boxShadow: "0 2px 8px rgba(139, 92, 246, 0.3)"
                        }}
                      >
                        <HStack spacing={2}>
                          <Code className="w-4 h-4" />
                          <Text>工具</Text>
                          {selectedTools.length > 0 && (
                            <Badge
                              bgGradient="linear(to-r, blue.500, purple.500)"
                              color="white"
                              borderRadius="full"
                              fontSize="xs"
                              px={2}
                              py={0.5}
                              boxShadow="0 2px 8px rgba(139, 92, 246, 0.3)"
                            >
                              {selectedTools.length}
                            </Badge>
                          )}
                        </HStack>
                      </Tab>
                      <Tab
                        color="gray.400"
                        _selected={{
                          color: "purple.400",
                          borderColor: "purple.500",
                          boxShadow: "0 2px 8px rgba(139, 92, 246, 0.3)"
                        }}
                      >
                        <HStack spacing={2}>
                          <BarChart3 className="w-4 h-4" />
                          <Text>统计</Text>
                        </HStack>
                      </Tab>
                    </TabList>

                    <TabPanels>
                      {/* 模型选择 */}
                      <TabPanel p={4}>
                        <VStack spacing={3} align="stretch">
                          {AVAILABLE_MODELS.map((model, idx) => (
                            <motion.div
                              key={model.id}
                              initial={{ opacity: 0, y: 10 }}
                              animate={{ opacity: 1, y: 0 }}
                              transition={{ delay: idx * 0.1 }}
                              whileHover={{ scale: 1.02, y: -2 }}
                              whileTap={{ scale: 0.98 }}
                            >
                              <Card
                                cursor="pointer"
                                onClick={() => setSelectedModel(model.id)}
                                bg={selectedModel === model.id
                                  ? 'rgba(139, 92, 246, 0.15)'
                                  : 'rgba(255, 255, 255, 0.05)'}
                                backdropFilter="blur(12px)"
                                borderWidth={2}
                                borderColor={selectedModel === model.id
                                  ? 'purple.400'
                                  : 'rgba(255, 255, 255, 0.1)'}
                                _hover={{
                                  borderColor: selectedModel === model.id
                                    ? 'purple.400'
                                    : 'rgba(255, 255, 255, 0.2)',
                                  boxShadow: selectedModel === model.id
                                    ? "0 8px 20px rgba(139, 92, 246, 0.4)"
                                    : "0 4px 12px rgba(0, 0, 0, 0.3)"
                                }}
                                transition="all 0.3s"
                              >
                                <CardBody p={3}>
                                  <HStack align="start" spacing={3}>
                                    <Box
                                      p={2}
                                      borderRadius="lg"
                                      bgGradient={selectedModel === model.id
                                        ? "linear(to-br, purple.500, pink.500)"
                                        : "linear(to-br, rgba(139, 92, 246, 0.2), rgba(236, 72, 153, 0.2))"}
                                      boxShadow={selectedModel === model.id
                                        ? "0 4px 12px rgba(139, 92, 246, 0.4)"
                                        : "none"}
                                    >
                                      {model.icon}
                                    </Box>
                                    <Box flex={1}>
                                      <Text fontWeight="semibold" fontSize="sm" color="gray.100">
                                        {model.name}
                                      </Text>
                                      <Text fontSize="xs" color="gray.400" mt={1}>
                                        {model.description}
                                      </Text>
                                    </Box>
                                    {selectedModel === model.id && (
                                      <motion.div
                                        initial={{ scale: 0 }}
                                        animate={{ scale: 1 }}
                                        transition={{ type: "spring", stiffness: 500, damping: 30 }}
                                      >
                                        <Check className="w-5 h-5" color="#A78BFA" />
                                      </motion.div>
                                    )}
                                  </HStack>
                                </CardBody>
                              </Card>
                            </motion.div>
                          ))}
                        </VStack>
                      </TabPanel>

                      {/* 工具选择 */}
                      <TabPanel p={4}>
                        <Accordion allowMultiple>
                          {Object.entries(TOOL_CATEGORIES).map(([category, tools], catIdx) => (
                            <motion.div
                              key={category}
                              initial={{ opacity: 0, y: 10 }}
                              animate={{ opacity: 1, y: 0 }}
                              transition={{ delay: catIdx * 0.05 }}
                            >
                              <AccordionItem
                                border="1px solid"
                                borderColor="rgba(255, 255, 255, 0.1)"
                                borderRadius="lg"
                                mb={2}
                                bg="rgba(255, 255, 255, 0.05)"
                                backdropFilter="blur(12px)"
                                _hover={{
                                  bg: 'rgba(255, 255, 255, 0.08)',
                                  borderColor: 'rgba(255, 255, 255, 0.2)'
                                }}
                              >
                                <AccordionButton>
                                  <HStack flex={1} justify="space-between" pr={2}>
                                    <Text color="gray.100" fontSize="sm">{category}</Text>
                                    <Badge
                                      bgGradient="linear(to-r, blue.500, purple.500)"
                                      color="white"
                                      variant="subtle"
                                      boxShadow="0 2px 8px rgba(139, 92, 246, 0.3)"
                                    >
                                      {tools.filter(t => selectedTools.includes(t.id)).length}/{tools.length}
                                    </Badge>
                                  </HStack>
                                  <AccordionIcon color="gray.400" />
                                </AccordionButton>
                                <AccordionPanel pb={4}>
                                  <CheckboxGroup
                                    value={selectedTools}
                                    onChange={setSelectedTools}
                                  >
                                    <VStack align="stretch" spacing={2}>
                                      {tools.map((tool) => (
                                        <motion.div
                                          key={tool.id}
                                          whileHover={{ x: 4 }}
                                          transition={{ type: "spring", stiffness: 300 }}
                                        >
                                          <Checkbox
                                            value={tool.id}
                                            colorScheme="purple"
                                            p={2}
                                            borderRadius="lg"
                                            bg="rgba(255, 255, 255, 0.02)"
                                            _hover={{ bg: 'rgba(255, 255, 255, 0.05)' }}
                                            transition="background 0.2s"
                                          >
                                            <HStack spacing={2} align="start">
                                              <Box color="purple.400" mt={0.5}>{tool.icon}</Box>
                                              <Box>
                                                <Text fontSize="sm" color="gray.200">{tool.name}</Text>
                                                <Text fontSize="xs" color="gray.500">{tool.description}</Text>
                                              </Box>
                                            </HStack>
                                          </Checkbox>
                                        </motion.div>
                                      ))}
                                    </VStack>
                                  </CheckboxGroup>
                                </AccordionPanel>
                              </AccordionItem>
                            </motion.div>
                          ))}
                        </Accordion>

                        <HStack mt={4} spacing={2}>
                          <motion.div flex={1} whileHover={{ scale: 1.02 }} whileTap={{ scale: 0.98 }}>
                            <Button
                              size="sm"
                              w="full"
                              variant="ghost"
                              onClick={() => setSelectedTools(MCP_TOOLS.map(t => t.id))}
                              bgGradient="linear(to-r, blue.500, purple.500)"
                              color="white"
                              _hover={{
                                bgGradient: "linear(to-r, blue.600, purple.600)",
                                boxShadow: "0 4px 12px rgba(139, 92, 246, 0.4)"
                              }}
                            >
                              全选
                            </Button>
                          </motion.div>
                          <motion.div flex={1} whileHover={{ scale: 1.02 }} whileTap={{ scale: 0.98 }}>
                            <Button
                              size="sm"
                              w="full"
                              variant="ghost"
                              onClick={() => setSelectedTools([])}
                              bg="rgba(255, 255, 255, 0.05)"
                              color="gray.300"
                              border="1px solid"
                              borderColor="rgba(255, 255, 255, 0.1)"
                              _hover={{
                                bg: "rgba(255, 255, 255, 0.1)",
                                borderColor: "rgba(255, 255, 255, 0.2)"
                              }}
                            >
                              清空
                            </Button>
                          </motion.div>
                        </HStack>
                      </TabPanel>

                      {/* 统计信息 */}
                      <TabPanel p={4}>
                        <VStack spacing={4} align="stretch">
                          <motion.div
                            initial={{ opacity: 0, y: 10 }}
                            animate={{ opacity: 1, y: 0 }}
                            transition={{ delay: 0 }}
                          >
                            <Card
                              bg="rgba(255, 255, 255, 0.05)"
                              backdropFilter="blur(12px)"
                              border="1px solid"
                              borderColor="rgba(255, 255, 255, 0.1)"
                              boxShadow="0 8px 32px 0 rgba(31, 38, 135, 0.37)"
                            >
                              <CardBody p={4}>
                                <Flex align="center" justify="space-between">
                                  <Box>
                                    <Text fontSize="xs" color="gray.400">对话数</Text>
                                    <Text
                                      fontSize="2xl"
                                      fontWeight="bold"
                                      bgGradient="linear(to-r, blue.400, purple.400)"
                                      bgClip="text"
                                    >
                                      {sessions.length}
                                    </Text>
                                  </Box>
                                  <MessageSquare className="w-8 h-8" color="#60A5FA" style={{ opacity: 0.5 }} />
                                </Flex>
                              </CardBody>
                            </Card>
                          </motion.div>

                          <motion.div
                            initial={{ opacity: 0, y: 10 }}
                            animate={{ opacity: 1, y: 0 }}
                            transition={{ delay: 0.1 }}
                          >
                            <Card
                              bg="rgba(255, 255, 255, 0.05)"
                              backdropFilter="blur(12px)"
                              border="1px solid"
                              borderColor="rgba(255, 255, 255, 0.1)"
                              boxShadow="0 8px 32px 0 rgba(31, 38, 135, 0.37)"
                            >
                              <CardBody p={4}>
                                <Flex align="center" justify="space-between">
                                  <Box>
                                    <Text fontSize="xs" color="gray.400">消息数</Text>
                                    <Text
                                      fontSize="2xl"
                                      fontWeight="bold"
                                      bgGradient="linear(to-r, purple.400, pink.400)"
                                      bgClip="text"
                                    >
                                      {messages.length}
                                    </Text>
                                  </Box>
                                  <Activity className="w-8 h-8" color="#C084FC" style={{ opacity: 0.5 }} />
                                </Flex>
                              </CardBody>
                            </Card>
                          </motion.div>

                          <motion.div
                            initial={{ opacity: 0, y: 10 }}
                            animate={{ opacity: 1, y: 0 }}
                            transition={{ delay: 0.2 }}
                          >
                            <Card
                              bg="rgba(255, 255, 255, 0.05)"
                              backdropFilter="blur(12px)"
                              border="1px solid"
                              borderColor="rgba(255, 255, 255, 0.1)"
                              boxShadow="0 8px 32px 0 rgba(31, 38, 135, 0.37)"
                            >
                              <CardBody p={4}>
                                <Flex align="center" justify="space-between">
                                  <Box>
                                    <Text fontSize="xs" color="gray.400">已选工具</Text>
                                    <Text
                                      fontSize="2xl"
                                      fontWeight="bold"
                                      bgGradient="linear(to-r, green.400, teal.400)"
                                      bgClip="text"
                                    >
                                      {selectedTools.length}
                                    </Text>
                                  </Box>
                                  <Code className="w-8 h-8" color="#34D399" style={{ opacity: 0.5 }} />
                                </Flex>
                              </CardBody>
                            </Card>
                          </motion.div>
                        </VStack>
                      </TabPanel>
                    </TabPanels>
                  </Tabs>
                </Box>
              </Box>
            </motion.div>
          )}
        </AnimatePresence>
      </Flex>
    </Box>
  );
};

export default AgentChat;

/**
 * 会话卡片组件
 */
const SessionCard = ({ session, isActive, onPress }) => {
  return (
    <motion.div
      whileHover={{ scale: 1.02, y: -4 }}
      whileTap={{ scale: 0.98 }}
      transition={{ duration: 0.2 }}
    >
      <Card
        cursor="pointer"
        onClick={onPress}
        bg={isActive
          ? 'rgba(139, 92, 246, 0.15)'
          : 'rgba(255, 255, 255, 0.05)'}
        backdropFilter="blur(12px)"
        borderWidth={1}
        borderColor={isActive
          ? 'purple.400'
          : 'rgba(255, 255, 255, 0.1)'}
        _hover={{
          bg: isActive
            ? 'rgba(139, 92, 246, 0.2)'
            : 'rgba(255, 255, 255, 0.08)',
          borderColor: isActive
            ? 'purple.400'
            : 'rgba(255, 255, 255, 0.2)',
          boxShadow: isActive
            ? "0 12px 24px rgba(139, 92, 246, 0.4)"
            : "0 4px 12px rgba(0, 0, 0, 0.3)"
        }}
        transition="all 0.3s"
      >
        <CardBody p={3}>
          <Flex align="start" justify="space-between" gap={2}>
            <Box flex={1} minW={0}>
              <Text fontSize="sm" fontWeight="medium" color="gray.100" noOfLines={1}>
                {session.title || '新对话'}
              </Text>
              <Text fontSize="xs" color="gray.500" mt={1}>
                {new Date(session.created_at || session.timestamp).toLocaleString('zh-CN', {
                  month: 'numeric',
                  day: 'numeric',
                  hour: '2-digit',
                  minute: '2-digit',
                })}
              </Text>
            </Box>
            {session.message_count && (
              <Badge
                bgGradient={isActive
                  ? "linear(to-r, blue.500, purple.500)"
                  : "linear(to-r, gray.600, gray.700)"}
                color={isActive ? 'white' : 'gray.400'}
                variant="subtle"
                boxShadow={isActive
                  ? "0 2px 8px rgba(139, 92, 246, 0.3)"
                  : "none"}
              >
                {session.message_count}
              </Badge>
            )}
          </Flex>
        </CardBody>
      </Card>
    </motion.div>
  );
};

/**
 * 消息渲染器
 */
const MessageRenderer = ({ message, userAvatar }) => {
  switch (message.type) {
    case MessageTypes.USER:
      return (
        <Flex justify="flex-end">
          <HStack align="start" spacing={3} maxW="75%">
            <motion.div
              initial={{ opacity: 0, x: 20 }}
              animate={{ opacity: 1, x: 0 }}
              transition={{ type: "spring", stiffness: 300, damping: 30 }}
            >
              <Card
                bgGradient="linear(to-br, blue.500, purple.600)"
                boxShadow="0 8px 20px rgba(139, 92, 246, 0.4)"
              >
                <CardBody px={5} py={3}>
                  <Text fontSize="sm" color="white" whiteSpace="pre-wrap">
                    {message.content}
                  </Text>
                  {message.files && message.files.length > 0 && (
                    <HStack mt={2} flexWrap="wrap" spacing={2}>
                      {message.files.map((file, idx) => (
                        <Badge
                          key={idx}
                          bg="rgba(255, 255, 255, 0.2)"
                          color="white"
                          display="flex"
                          alignItems="center"
                          gap={1}
                        >
                          <File className="w-3 h-3" />
                          {file.name}
                        </Badge>
                      ))}
                    </HStack>
                  )}
                </CardBody>
              </Card>
            </motion.div>
            <Avatar
              src={userAvatar}
              icon={<User className="w-4 h-4" />}
              size="sm"
              bgGradient="linear(to-br, blue.500, purple.600)"
              boxShadow="0 0 12px rgba(139, 92, 246, 0.4)"
            />
          </HStack>
        </Flex>
      );

    case MessageTypes.AGENT_THINKING:
      return (
        <Flex justify="flex-start">
          <HStack align="start" spacing={3} maxW="75%">
            <Avatar
              icon={<Cpu className="w-4 h-4" />}
              size="sm"
              bgGradient="linear(to-br, purple.500, pink.500)"
              boxShadow="0 0 12px rgba(236, 72, 153, 0.4)"
            />
            <motion.div
              initial={{ opacity: 0, x: -20 }}
              animate={{ opacity: 1, x: 0 }}
            >
              <Card
                bg="rgba(255, 255, 255, 0.05)"
                backdropFilter="blur(16px) saturate(180%)"
                border="1px solid"
                borderColor="rgba(255, 255, 255, 0.1)"
                boxShadow="0 8px 32px 0 rgba(31, 38, 135, 0.37)"
              >
                <CardBody px={5} py={3}>
                  <HStack spacing={2}>
                    <Spinner size="sm" color="purple.500" emptyColor="gray.700" thickness="3px" speed="0.65s" />
                    <Text fontSize="sm" color="gray.300">{message.content}</Text>
                  </HStack>
                </CardBody>
              </Card>
            </motion.div>
          </HStack>
        </Flex>
      );

    case MessageTypes.AGENT_RESPONSE:
      return (
        <Flex justify="flex-start">
          <HStack align="start" spacing={3} maxW="75%">
            <Avatar
              icon={<Cpu className="w-4 h-4" />}
              size="sm"
              bgGradient="linear(to-br, purple.500, pink.500)"
              boxShadow="0 0 12px rgba(236, 72, 153, 0.4)"
            />
            <motion.div
              initial={{ opacity: 0, x: -20 }}
              animate={{ opacity: 1, x: 0 }}
              transition={{ type: "spring", stiffness: 300, damping: 30 }}
            >
              <Card
                bg="rgba(255, 255, 255, 0.05)"
                backdropFilter="blur(16px) saturate(180%)"
                border="1px solid"
                borderColor="rgba(255, 255, 255, 0.1)"
                boxShadow="0 8px 32px 0 rgba(31, 38, 135, 0.37)"
              >
                <CardBody px={5} py={3}>
                  <Text fontSize="sm" color="gray.100" whiteSpace="pre-wrap" lineHeight="relaxed">
                    {message.content}
                  </Text>

                  {message.stepResults && message.stepResults.length > 0 && (
                    <Box mt={3}>
                      <ExecutionStepsDisplay steps={message.stepResults} plan={message.plan} />
                    </Box>
                  )}

                  <Flex align="center" gap={2} mt={3} pt={3} borderTop="1px solid" borderColor="rgba(255, 255, 255, 0.1)">
                    <Tooltip label="复制">
                      <motion.div whileHover={{ scale: 1.1 }} whileTap={{ scale: 0.9 }}>
                        <IconButton
                          size="sm"
                          variant="ghost"
                          icon={<Copy className="w-4 h-4" />}
                          onClick={() => navigator.clipboard.writeText(message.content)}
                          bg="rgba(255, 255, 255, 0.05)"
                          color="gray.400"
                          _hover={{
                            color: "white",
                            bg: "rgba(255, 255, 255, 0.1)"
                          }}
                        />
                      </motion.div>
                    </Tooltip>
                    <Tooltip label="点赞">
                      <motion.div whileHover={{ scale: 1.1 }} whileTap={{ scale: 0.9 }}>
                        <IconButton
                          size="sm"
                          variant="ghost"
                          icon={<ThumbsUp className="w-4 h-4" />}
                          bg="rgba(255, 255, 255, 0.05)"
                          color="gray.400"
                          _hover={{
                            color: "green.400",
                            bg: "rgba(16, 185, 129, 0.1)",
                            boxShadow: "0 0 12px rgba(16, 185, 129, 0.3)"
                          }}
                        />
                      </motion.div>
                    </Tooltip>
                    <Tooltip label="点踩">
                      <motion.div whileHover={{ scale: 1.1 }} whileTap={{ scale: 0.9 }}>
                        <IconButton
                          size="sm"
                          variant="ghost"
                          icon={<ThumbsDown className="w-4 h-4" />}
                          bg="rgba(255, 255, 255, 0.05)"
                          color="gray.400"
                          _hover={{
                            color: "red.400",
                            bg: "rgba(239, 68, 68, 0.1)",
                            boxShadow: "0 0 12px rgba(239, 68, 68, 0.3)"
                          }}
                        />
                      </motion.div>
                    </Tooltip>
                    <Text fontSize="xs" color="gray.500" ml="auto">
                      {new Date(message.timestamp).toLocaleTimeString('zh-CN', {
                        hour: '2-digit',
                        minute: '2-digit',
                      })}
                    </Text>
                  </Flex>
                </CardBody>
              </Card>
            </motion.div>
          </HStack>
        </Flex>
      );

    case MessageTypes.ERROR:
      return (
        <Flex justify="center">
          <motion.div
            initial={{ opacity: 0, scale: 0.9 }}
            animate={{ opacity: 1, scale: 1 }}
          >
            <Card
              bg="rgba(239, 68, 68, 0.1)"
              backdropFilter="blur(16px)"
              border="1px solid"
              borderColor="rgba(239, 68, 68, 0.5)"
              boxShadow="0 8px 32px 0 rgba(239, 68, 68, 0.37)"
            >
              <CardBody px={5} py={3}>
                <Text fontSize="sm" color="red.400">{message.content}</Text>
              </CardBody>
            </Card>
          </motion.div>
        </Flex>
      );

    default:
      return null;
  }
};

/**
 * 执行步骤显示组件
 */
const ExecutionStepsDisplay = ({ steps, plan }) => {
  return (
    <Accordion allowToggle>
      <AccordionItem
        border="1px solid"
        borderColor="rgba(255, 255, 255, 0.1)"
        borderRadius="lg"
        bg="rgba(255, 255, 255, 0.03)"
        backdropFilter="blur(10px)"
        _hover={{
          bg: 'rgba(255, 255, 255, 0.05)',
          borderColor: 'rgba(255, 255, 255, 0.2)'
        }}
      >
        <AccordionButton px={4} py={2}>
          <HStack flex={1} spacing={2}>
            <Activity className="w-4 h-4" color="#C084FC" />
            <Text color="gray.300" fontSize="sm">执行详情</Text>
            <Badge
              bgGradient="linear(to-r, purple.500, pink.500)"
              color="white"
              variant="subtle"
              boxShadow="0 2px 8px rgba(139, 92, 246, 0.3)"
            >
              {steps.length} 步骤
            </Badge>
          </HStack>
          <AccordionIcon color="gray.400" />
        </AccordionButton>
        <AccordionPanel pb={4}>
          <VStack spacing={2} align="stretch">
            {steps.map((result, idx) => (
              <motion.div
                key={idx}
                initial={{ opacity: 0, x: -10 }}
                animate={{ opacity: 1, x: 0 }}
                transition={{ delay: idx * 0.05 }}
              >
                <Card
                  bg="rgba(255, 255, 255, 0.03)"
                  backdropFilter="blur(10px)"
                  border="1px solid"
                  borderColor="rgba(255, 255, 255, 0.1)"
                >
                  <CardBody p={3}>
                    <Flex align="start" justify="space-between" gap={2}>
                      <Text fontSize="xs" fontWeight="medium" color="gray.300">
                        步骤 {idx + 1}: {result.tool_name}
                      </Text>
                      <Badge
                        bgGradient={result.status === 'success'
                          ? "linear(to-r, green.500, teal.500)"
                          : "linear(to-r, red.500, orange.500)"}
                        color="white"
                        variant="subtle"
                        boxShadow={result.status === 'success'
                          ? "0 2px 8px rgba(16, 185, 129, 0.3)"
                          : "0 2px 8px rgba(239, 68, 68, 0.3)"}
                      >
                        {result.status}
                      </Badge>
                    </Flex>
                    <Text fontSize="xs" color="gray.500" mt={1}>
                      {result.execution_time?.toFixed(2)}s
                    </Text>
                    {result.error && (
                      <Text fontSize="xs" color="red.400" mt={1}>⚠️ {result.error}</Text>
                    )}
                  </CardBody>
                </Card>
              </motion.div>
            ))}
          </VStack>
        </AccordionPanel>
      </AccordionItem>
    </Accordion>
  );
};