"use client";

import React, { useState, useEffect } from 'react';
import { Button } from '@/components/ui/button';
import { ErrorMessage } from '@/components/ui/error-message';

// 声明全局window属性
declare global {
  interface Window {
    sseRetryCount?: number;
  }
}

// 定义类型
interface ResearchFormProps {
  className?: string;
  onSubmit?: (data: any) => void;
}

// 定义模态框组件的Props接口
interface PapersListModalProps {
  directionIndex: number;
  directionTitle: string;
  papers: any[];
  onClose: () => void;
}

// 论文列表模态框组件 - 只显示论文，不显示研究报告
function PapersListModal({ directionIndex, directionTitle, papers, onClose }: PapersListModalProps) {
  if (!papers || papers.length === 0) return null;
  
  return (
    <div className="fixed inset-0 bg-black/80 flex items-center justify-center z-50 p-4 overflow-y-auto">
      <div className="bg-gray-800 rounded-lg max-w-4xl w-full max-h-[90vh] overflow-y-auto">
        <div className="p-6">
          {/* 标题和关闭按钮 */}
          <div className="flex justify-between items-start mb-6 sticky top-0 bg-gray-800 pb-2 z-10">
            <h3 className="text-xl font-bold text-white">
              研究方向 {directionIndex + 1}: {directionTitle}
            </h3>
            <button 
              onClick={onClose}
              className="bg-gray-700 hover:bg-gray-600 rounded-full p-2 text-white/80 hover:text-white"
            >
              <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
                <line x1="18" y1="6" x2="6" y2="18"></line>
                <line x1="6" y1="6" x2="18" y2="18"></line>
              </svg>
            </button>
          </div>
          
          {/* 论文列表部分 */}
          {papers && papers.length > 0 && (
            <div>
              <h4 className="text-lg font-medium text-white mb-3">论文列表 ({papers.length})</h4>
              
              <div className="space-y-4">
                {papers.map((paper: any, index: number) => (
                  <div key={index} className="p-4 bg-slate-700/50 rounded-md">
                    {/* 论文标题 */}
                    <div className="mb-3">
                      {paper.link || paper.url ? (
                        <a 
                          href={paper.link || paper.url} 
                          target="_blank" 
                          rel="noopener noreferrer"
                          className="text-blue-400 hover:text-blue-300 font-medium text-lg hover:underline"
                        >
                          {paper.title}
                        </a>
                      ) : (
                        <h5 className="text-blue-400 font-medium text-lg">{paper.title}</h5>
                      )}
                    </div>
                    
                    {/* 作者信息 */}
                    {paper.authors && paper.authors.length > 0 && (
                      <div className="mb-3">
                        <span className="text-sm text-white/60">作者:</span>
                        <p className="text-white/90">{paper.authors.join(', ')}</p>
                      </div>
                    )}
                    
                    {/* 年份 */}
                    <div className="mb-3">
                      <span className="text-sm text-white/60">发表年份:</span>
                      <p className="text-white/90">
                        {paper.year || (paper.published && paper.published.substring(0, 4)) || "未知"}
                      </p>
                    </div>
                    
                    {/* 摘要 */}
                    <div className="mb-4">
                      <span className="text-sm text-white/60">摘要:</span>
                      <div className="text-white/80 text-sm bg-slate-800/70 p-3 rounded-md mt-1">
                        {paper.abstract || paper.summary || "此论文暂无摘要"}
                      </div>
                    </div>
                    
                    {/* 查看原文按钮 */}
                    {(paper.link || paper.url) && (
                      <a 
                        href={paper.link || paper.url} 
                        target="_blank" 
                        rel="noopener noreferrer"
                        className="inline-block bg-blue-600 hover:bg-blue-700 text-white font-medium py-1.5 px-3 rounded-md transition-colors text-sm"
                      >
                        查看原文
                      </a>
                    )}
                  </div>
                ))}
              </div>
            </div>
          )}
        </div>
      </div>
    </div>
  );
}

// 定义研究报告模态框Props接口
interface ReportModalProps {
  directionIndex: number;
  directionTitle: string;
  report: any;
  onClose: () => void;
}

// 研究报告模态框组件 - 专门显示研究报告
function ReportModal({ directionIndex, directionTitle, report, onClose }: ReportModalProps) {
  if (!report) {
    return (
      <div className="fixed inset-0 bg-black/80 flex items-center justify-center z-50 p-4 overflow-y-auto">
        <div className="bg-gray-800 rounded-lg max-w-4xl w-full max-h-[90vh] overflow-y-auto">
          <div className="p-6">
            {/* 标题和关闭按钮 */}
            <div className="flex justify-between items-start mb-6 sticky top-0 bg-gray-800 pb-2 z-10">
              <h3 className="text-xl font-bold text-white">
                研究报告: {directionTitle}
              </h3>
              <button 
                onClick={onClose}
                className="bg-gray-700 hover:bg-gray-600 rounded-full p-2 text-white/80 hover:text-white"
              >
                <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
                  <line x1="18" y1="6" x2="6" y2="18"></line>
                  <line x1="6" y1="6" x2="18" y2="18"></line>
                </svg>
              </button>
            </div>
            
            <div className="bg-white text-black p-6 rounded-md">
              <div className="text-center py-8">
                <svg xmlns="http://www.w3.org/2000/svg" className="h-12 w-12 mx-auto text-yellow-500 mb-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z" />
                </svg>
                <h3 className="text-xl font-medium text-gray-900 mb-2">无法加载报告</h3>
                <p className="text-gray-600 mb-4">
                  方向 {directionIndex + 1} 的报告数据不可用或连接中断。
                </p>
                <p className="text-gray-500 text-sm mb-6">
                  可能原因: 连接中断、报告生成失败或服务器错误。
                </p>
                <button
                  onClick={onClose}
                  className="bg-blue-600 hover:bg-blue-700 text-white font-medium py-2 px-4 rounded-md transition-colors"
                >
                  返回
                </button>
              </div>
            </div>
          </div>
        </div>
      </div>
    );
  }
  
  // 状态保存解析后的报告内容
  const [parsedReport, setParsedReport] = useState<string>("");
  
  // 增强错误处理
  useEffect(() => {
    const extractReportContent = () => {
      console.log(`处理方向${directionIndex + 1}的报告数据:`, report);
      
      try {
        if (!report) {
          return `无法加载报告内容。`;
        }
        
        let content = "";
        
        // 处理多种可能的数据格式
        if (typeof report === 'string') {
          // 直接是字符串的情况
          content = report;
        } 
        else if (typeof report === 'object') {
          // 1. 有直接内容字段的情况
          if (report.content) {
            content = report.content;
          }
          // 2. 有英文或翻译内容字段的情况
          else if (report.english_content || report.translated_content) {
            content = report.translated_content || report.english_content;
          }
          // 3. 有report子对象的情况
          else if (report.report) {
            if (typeof report.report === 'string') {
              // report字段是字符串
              content = report.report;
            } 
            else if (typeof report.report === 'object' && report.report !== null) {
              // report字段是对象，尝试提取其内容
              content = report.report.english_content || 
                       report.report.translated_content || 
                       report.report.content ||
                       JSON.stringify(report.report);
            }
          }
          // 4. 没有找到任何内容字段，尝试寻找最长的字符串字段
          if (!content) {
            let maxLength = 0;
            let bestField = '';
            
            for (const key in report) {
              if (typeof report[key] === 'string' && report[key].length > maxLength) {
                maxLength = report[key].length;
                bestField = key;
                content = report[key];
              }
            }
            
            console.log(`使用最长字符串字段: ${bestField}`);
          }
          
          // 5. 仍然没找到，转为JSON
          if (!content) {
            content = JSON.stringify(report, null, 2);
          }
        }
        
        // 处理特殊字符
        if (content) {
          content = content
            .replace(/\\n/g, '\n')
            .replace(/\\"/g, '"')
            .replace(/\\\\/g, '\\');
        }
        
        return content || `无法解析报告内容。`;
      } catch (error) {
        console.error("解析报告出错:", error);
        return `处理报告时出现错误: ${error}`;
      }
    };
    
    // 解析内容并更新状态
    const content = extractReportContent();
    setParsedReport(content);
  }, [report, directionIndex]);
  
  // 创建HTML格式的报告内容用于下载
  const createHtmlReport = () => {
    // 创建HTML格式
    let htmlContent = `<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>研究报告: ${directionTitle}</title>
  <style>
    body {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: #333;
      max-width: 800px;
      margin: 0 auto;
      padding: 20px;
    }
    h1 {
      font-size: 24px;
      margin-top: 30px;
      border-bottom: 1px solid #ddd;
      padding-bottom: 10px;
    }
    h2 {
      font-size: 20px;
      margin-top: 25px;
    }
    p {
      margin: 16px 0;
    }
    .header {
      text-align: center;
      margin-bottom: 40px;
    }
    .content {
      text-align: justify;
    }
  </style>
</head>
<body>
  <div class="header">
    <h1>研究报告: ${directionTitle}</h1>
  </div>
  <div class="content">`;
  
    // 转换文本内容为HTML格式
    // 替换标题
    let content = parsedReport
      .replace(/\*\*(\d+)\.\s+([^\*]+)\*\*/g, '<h1>$1. $2</h1>')
      // 替换小节标题
      .replace(/\*\*(\d+\.\d+)\s+([^\*]+)\*\*/g, '<h2>$1 $2</h2>')
      // 替换段落
      .split('\n\n').join('</p><p>');
      
    htmlContent += `<p>${content}</p>`;
    htmlContent += `
  </div>
</body>
</html>`;
    
    return htmlContent;
  };
  
  // 创建下载链接
  const createDownloadLink = () => {
    const htmlContent = createHtmlReport();
    const blob = new Blob([htmlContent], { type: 'text/html' });
    const url = URL.createObjectURL(blob);
    
    return {
      url,
      filename: `研究报告_${directionTitle.replace(/[^a-zA-Z0-9\u4e00-\u9fa5]/g, '_')}.html`,
      cleanup: () => URL.revokeObjectURL(url)
    };
  };
  
  // 下载链接状态
  const [downloadLink, setDownloadLink] = useState<{
    url: string;
    filename: string;
    cleanup: () => void;
  } | null>(null);
  
  // 创建下载链接
  useEffect(() => {
    if (parsedReport) {
      const link = createDownloadLink();
      setDownloadLink(link);
      
      // 清理函数
      return () => {
        if (link && link.cleanup) link.cleanup();
      };
    }
  }, [parsedReport, directionTitle]);
  
  // 直接显示原始内容以便调试
  const showRawContent = () => {
    console.log("显示原始内容");
    alert(JSON.stringify(report, null, 2));
  };
  
  return (
    <div className="fixed inset-0 bg-black/80 flex items-center justify-center z-50 p-4 overflow-y-auto">
      <div className="bg-gray-800 rounded-lg max-w-4xl w-full max-h-[90vh] overflow-y-auto">
        <div className="p-6">
          {/* 标题和关闭按钮 */}
          <div className="flex justify-between items-start mb-6 sticky top-0 bg-gray-800 pb-2 z-10">
            <h3 className="text-xl font-bold text-white">
              研究报告: {directionTitle}
            </h3>
            <button 
              onClick={onClose}
              className="bg-gray-700 hover:bg-gray-600 rounded-full p-2 text-white/80 hover:text-white"
            >
              <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
                <line x1="18" y1="6" x2="6" y2="18"></line>
                <line x1="6" y1="6" x2="18" y2="18"></line>
              </svg>
            </button>
          </div>
          
          {/* 下载和调试按钮 */}
          <div className="mb-4 flex gap-2">
            {downloadLink && (
              <a 
                href={downloadLink.url}
                download={downloadLink.filename}
                className="inline-flex items-center gap-2 bg-green-600 hover:bg-green-700 text-white font-medium py-2 px-4 rounded-md transition-colors"
              >
                <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
                  <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"></path>
                  <polyline points="7 10 12 15 17 10"></polyline>
                  <line x1="12" y1="15" x2="12" y2="3"></line>
                </svg>
                下载HTML格式报告
              </a>
            )}
            
            <button
              onClick={showRawContent}
              className="inline-flex items-center gap-2 bg-gray-600 hover:bg-gray-700 text-white font-medium py-2 px-4 rounded-md transition-colors text-sm"
            >
              查看原始数据
            </button>
          </div>
          
          {/* 研究报告内容 */}
          <div className="bg-white text-black p-6 rounded-md prose max-w-none">
            {/* 如果解析出的内容为空，显示待处理信息 */}
            {!parsedReport && (
              <div className="text-center py-8 text-gray-500">
                <svg className="animate-spin h-8 w-8 mx-auto mb-4 text-gray-400" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24">
                  <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4"></circle>
                  <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
                </svg>
                <p>正在处理报告内容...</p>
              </div>
            )}
            
            {/* 显示解析后的内容，使用预格式化文本保留格式 */}
            {parsedReport && (
              <div 
                className="whitespace-pre-wrap"
                dangerouslySetInnerHTML={{ 
                  __html: parsedReport
                    .replace(/\*\*(\d+)\.\s+([^\*]+)\*\*/g, '<h2 class="text-xl font-bold mt-6 mb-4">$1. $2</h2>')
                    .replace(/\*\*(\d+\.\d+)\s+([^\*]+)\*\*/g, '<h3 class="text-lg font-bold mt-5 mb-3">$1 $2</h3>')
                    .replace(/\n\n/g, '<br/><br/>')
                }}
              ></div>
            )}
          </div>
        </div>
      </div>
    </div>
  );
}

export function ResearchForm({ className = "", onSubmit }: ResearchFormProps) {
  // 基本状态
  const [researchTopic, setResearchTopic] = useState('');
  const [loading, setLoading] = useState(false);
  const [error, setError] = useState<string | null>(null);
  const [processMessage, setProcessMessage] = useState('');
  const [researchCompleted, setResearchCompleted] = useState(false); // 新增：标记研究是否已完成
  
  // 研究数据
  const [keywordsData, setKeywordsData] = useState<any>(null);
  const [directionsData, setDirectionsData] = useState<any>(null);
  const [papersData, setPapersData] = useState<any[]>([]);
  const [reportsData, setReportsData] = useState<any[]>([]);
  const [researchData, setResearchData] = useState<any>(null);
  
  // 模态框状态
  const [showPapersModal, setShowPapersModal] = useState<boolean>(false);
  const [showReportModal, setShowReportModal] = useState<boolean>(false);
  const [selectedDirectionIndex, setSelectedDirectionIndex] = useState<number | null>(null);
  
  // 添加新函数，用于开始新的研究
  const startNewResearch = () => {
    // 重置所有状态
    setResearchTopic('');
    setKeywordsData(null);
    setDirectionsData(null);
    setPapersData([]);
    setReportsData([]);
    setResearchData(null);
    setProcessMessage('');
    setError(null);
    setResearchCompleted(false);
    
    // 重置全局重试计数
    if (window.sseRetryCount) {
      window.sseRetryCount = 0;
    }
  };
  
  // 表单提交
  const handleSubmit = (e: React.FormEvent) => {
    e.preventDefault();
    
    if (!researchTopic.trim()) {
      setError('请输入研究主题');
      return;
    }
    
    // 如果已经有研究完成，先重置状态
    if (researchCompleted) {
      startNewResearch();
      // 延迟设置新主题并提交，确保状态重置完成
      setTimeout(() => {
        const newTopic = researchTopic; // 保存当前主题
        const newEvent = new Event('submit') as React.FormEvent;
        setResearchTopic(newTopic);
        handleSubmit(newEvent);
      }, 10);
      return;
    }
    
    setLoading(true);
    setError(null);
    setProcessMessage('正在连接服务器...');
    
    // 创建EventSource连接
    try {
      const safeResearchTopic = encodeURIComponent(researchTopic.trim());
      const url = `/api/research/enhanced-process-stream?research_intent=${safeResearchTopic}`;
      
      const eventSource = new EventSource(url);
      
      // 连接事件处理
      eventSource.onopen = () => {
        setProcessMessage('连接成功，开始处理研究内容...');
      };
      
      // 消息事件处理
      eventSource.onmessage = (event) => {
        try {
          const data = JSON.parse(event.data);
          console.log("收到事件数据:", data);
          
          // 更新处理消息
          if (data.message) {
            setProcessMessage(data.message);
          }
          
          // 处理不同类型的事件
          switch(data.status) {
            case 'base_keywords_extracted':
              if (data.data && data.data.keywords) {
                setKeywordsData(data.data);
                console.log("关键词数据:", data.data);
              }
              break;
              
            case 'research_topics_generated':
              if (data.data && data.data.research_topics) {
                setDirectionsData(data.data);
                console.log("研究方向数据:", data.data);
              }
              break;
              
            case 'papers_ready':
              if (data.data) {
                console.log("论文数据:", data.data);
                setPapersData(prev => {
                  const newData = [...prev];
                  if (data.data.direction_index !== undefined) {
                    newData[data.data.direction_index] = data.data;
                  }
                  return newData;
                });
              }
              break;
              
            case 'report_ready':
              if (data.data) {
                console.log("报告数据:", data.data);
                
                // 使用函数式更新确保报告数据正确合并
                setReportsData((prevReports: any[]) => {
                  const newReports = [...prevReports];
                  if (data.data.direction_index !== undefined) {
                    newReports[data.data.direction_index] = data.data;
                  }
                  return newReports;
                });
                
                // 如果是最后一个报告已生成，标记研究为完成状态
                if (data.data.direction_index === 4 || 
                    (directionsData?.research_topics && 
                     data.data.direction_index === directionsData.research_topics.length - 1)) {
                  
                  console.log("最后一个报告已生成，研究完成");
                  
                  // 使用setTimeout确保报告数据先被更新完成
                  setTimeout(() => {
                    setResearchData({
                      research_intent: researchTopic,
                      keywords: keywordsData?.keywords || [],
                      directions: directionsData?.research_topics || [],
                      papers_by_direction: papersData,
                      reports: reportsData // 直接使用当前状态
                    });
                    
                    setProcessMessage("研究已完成，您可以查看各个方向的报告和论文");
                    setResearchCompleted(true);
                    eventSource.close();
                    setLoading(false);
                  }, 100);
                }
              }
              break;
              
            case 'completed':
              setResearchData({
                research_intent: researchTopic,
                keywords: keywordsData?.keywords || [],
                directions: directionsData?.research_topics || [],
                papers_by_direction: papersData,
                reports: reportsData
              });
              setProcessMessage("研究已完成，您可以查看各个方向的报告和论文");
              setResearchCompleted(true);
              eventSource.close();
              setLoading(false);
              break;
              
            case 'error':
              setError(data.message || "处理过程中发生错误");
              eventSource.close();
              setLoading(false);
              break;
          }
        } catch (error) {
          console.error("处理事件数据时出错:", error);
        }
      };
      
      // 错误处理 - 增强版
      eventSource.onerror = (error: Event) => {
        console.error("与研究服务连接失败:", error);
        
        // 重连尝试计数
        if (!window.sseRetryCount) {
          window.sseRetryCount = 0;
        }
        
        // 检查是否已完成大部分研究 (即已经生成了最后一个方向的报告)
        const isLastReportGenerated = reportsData.length > 0 && 
          directionsData?.research_topics && 
          reportsData.length >= directionsData.research_topics.length;
          
        // 如果已经生成了最后一个报告，直接标记为完成
        if (isLastReportGenerated) {
          console.log("所有报告都已生成，标记研究完成");
          
          // 构建最终研究数据
          setResearchData({
            research_intent: researchTopic,
            keywords: keywordsData?.keywords || [],
            directions: directionsData?.research_topics || [],
            papers_by_direction: papersData,
            reports: reportsData
          });
          
          // 显示完成消息
          setProcessMessage("研究已完成，您可以查看各个方向的报告和论文");
          setResearchCompleted(true);
          setLoading(false);
          
          // 确保关闭连接
          try {
            eventSource.close();
          } catch (e) {
            // 忽略关闭错误
          }
          return;
        }
        
        // 增加重连机制 - 但只在未生成足够报告时尝试
        if (window.sseRetryCount < 3) {
          console.log(`尝试重新连接 (${window.sseRetryCount + 1}/3)...`);
          window.sseRetryCount++;
          
          // 关闭当前连接
          try {
            eventSource.close();
          } catch (e) {
            // 忽略关闭错误
          }
          
          // 等待1秒后重连
          setTimeout(() => {
            const newUrl = `/api/research/enhanced-process-stream?research_intent=${safeResearchTopic}`;
            const newEventSource = new EventSource(newUrl);
            
            // 设置新的事件监听器
            // ...复制原来的所有事件监听器...
            
            setProcessMessage(`尝试重新连接 (${window.sseRetryCount}/3)...`);
          }, 1000);
          
          return;
        }
        
        // 检查处理是否已基本完成
        const hasCompletedMostWork = reportsData.some(report => report && (report.report || report.content));
        
        if (hasCompletedMostWork) {
          console.log("尽管连接中断，但大部分报告已生成，尝试恢复...");
          
          // 所有研究方向都有数据了，认为是基本完成
          if (reportsData.length >= directionsData?.research_topics?.length) {
            console.log("所有报告都已生成，手动完成流程");
            
            // 构建最终研究数据
            setResearchData({
              research_intent: researchTopic,
              keywords: keywordsData?.keywords || [],
              directions: directionsData?.research_topics || [],
              papers_by_direction: papersData,
              reports: reportsData
            });
            
            // 显示提示但继续
            setProcessMessage("研究已完成，您可以查看各个方向的报告和论文");
            setResearchCompleted(true);
            setLoading(false);
          } else {
            // 还有部分未完成，给出警告
            setError("与研究服务的连接中断，但部分报告已生成。您可以查看现有结果，或开始新的研究。");
            setResearchCompleted(true);
            setLoading(false);
          }
        } else {
          // 完全失败的情况
          setError("与研究服务的连接中断，可能原因：1) 后端服务未运行 2) 网络连接问题 3) 服务器错误");
          setProcessMessage("您可以开始新的研究，或联系管理员获取帮助。");
          setLoading(false);
        }
        
        // 确保关闭连接
        try {
          eventSource.close();
        } catch (e) {
          // 忽略关闭错误
        }
      };
      
    } catch (error) {
      console.error("创建EventSource失败:", error);
      setError("无法连接到研究服务");
      setLoading(false);
    }
  };
  
  // 取消处理
  const handleCancel = () => {
    setLoading(false);
  };
  
  // 打开论文列表模态框 - 修复论文模态框打开问题
  const openPapersModal = (directionIndex: number) => {
    console.log("打开论文模态框，方向索引:", directionIndex);
    setSelectedDirectionIndex(directionIndex);
    setShowPapersModal(true);
    setShowReportModal(false);
  };
  
  // 关闭论文列表模态框
  const closePapersModal = () => {
    setShowPapersModal(false);
    setSelectedDirectionIndex(null);
  };
  
  // 打开研究报告模态框 - 增加日志以便调试
  const openReportModal = (directionIndex: number) => {
    console.log("打开报告模态框，方向索引:", directionIndex);
    console.log("报告数据:", reportsData[directionIndex]);
    setSelectedDirectionIndex(directionIndex);
    setShowReportModal(true);
    setShowPapersModal(false);
  };
  
  // 关闭研究报告模态框
  const closeReportModal = () => {
    setShowReportModal(false);
    setSelectedDirectionIndex(null);
  };

  return (
    <div className={className}>
      {/* 标题和说明 */}
      <div className="mb-6">
        <h2 className="text-2xl font-bold text-white mb-2 text-center">研究助手</h2>
      </div>

      {/* 研究表单 */}
      <form onSubmit={handleSubmit} className="space-y-4">
        {/* 研究主题输入 */}
        <div className="space-y-2">
          <label htmlFor="research-topic" className="block text-sm font-medium text-white">
            研究主题
          </label>
          <textarea
            id="research-topic"
            placeholder="输入您想研究的主题，例如：新能源电池技术的最新发展及应用前景"
            className="w-full h-24 px-3 py-2 text-white bg-white/5 border border-white/10 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent"
            value={researchTopic}
            onChange={(e) => setResearchTopic(e.target.value)}
            disabled={loading}
          />
        </div>

        {/* 错误信息显示 */}
        {error && <ErrorMessage message={error} onDismiss={() => setError(null)} />}

        {/* 提交按钮 - 居中显示 */}
        <div className="flex justify-center mt-4">
          <Button
            type="submit"
            disabled={!researchTopic.trim() || loading}
            className={`${
              loading ? 'bg-blue-600/50' : 'bg-blue-600 hover:bg-blue-700'
            } text-white font-medium py-2 px-4 rounded-md transition-colors`}
          >
            {loading ? "研究进行中..." : researchCompleted ? "开始新研究" : "开始研究"}
          </Button>

          {loading && (
            <button
              type="button"
              onClick={handleCancel}
              className="ml-2 text-white/60 hover:text-white text-sm"
            >
              取消
            </button>
          )}
        </div>
      </form>

      {/* 处理中状态显示 */}
      {loading && (
        <div className="mt-8 space-y-6">
          {/* 状态消息 */}
          <div className="p-4 bg-blue-900/30 rounded-lg border border-blue-800/50">
            <div className="flex items-center">
              <div className="mr-3">
                <svg className="animate-spin h-5 w-5 text-blue-400" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24">
                  <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4"></circle>
                  <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
                </svg>
              </div>
              <div>
                <p className="font-medium text-white">研究进行中...</p>
                <p className="text-sm text-white/80">{processMessage}</p>
              </div>
            </div>
          </div>

          {/* 关键词显示 */}
          {keywordsData && keywordsData.keywords && keywordsData.keywords.length > 0 && (
            <div className="p-4 bg-white/5 rounded-lg">
              <h3 className="text-sm font-medium text-white mb-2">提取到的关键词：</h3>
              <div className="flex flex-wrap gap-2">
                {keywordsData.keywords.map((keyword: string, index: number) => (
                  <span 
                    key={index} 
                    className="px-3 py-1 bg-blue-500/20 rounded-full text-blue-300"
                  >
                    {keyword}
                  </span>
                ))}
              </div>
            </div>
          )}

          {/* 研究方向显示 */}
          {directionsData && directionsData.research_topics && directionsData.research_topics.length > 0 && (
            <div className="p-4 bg-white/5 rounded-lg">
              <h3 className="text-sm font-medium text-white mb-2">生成的研究方向：</h3>
              <div className="space-y-2">
                {directionsData.research_topics.map((topic: any, index: number) => (
                  <div key={index} className="p-2 bg-white/10 rounded-md">
                    <p className="font-medium text-white">
                      {index + 1}. {topic.english_title || topic.title}
                    </p>
                    {topic.keywords && topic.keywords.length > 0 && (
                      <div className="mt-1 flex flex-wrap gap-1">
                        {topic.keywords.map((kw: string, kidx: number) => (
                          <span key={kidx} className="px-1.5 py-0.5 text-xs bg-white/10 rounded-full text-white/70">
                            {kw}
                          </span>
                        ))}
                      </div>
                    )}
                  </div>
                ))}
              </div>
            </div>
          )}
          
          {/* 已检索的论文和报告 */}
          {(papersData.length > 0 || reportsData.length > 0) && (
            <div className="p-4 bg-white/5 rounded-lg">
              <h3 className="text-sm font-medium text-white mb-2">研究进展：</h3>
              <div className="space-y-3">
                {directionsData && directionsData.research_topics && directionsData.research_topics.map((topic: any, index: number) => {
                  const hasReport = reportsData[index] && (reportsData[index].report || reportsData[index].content);
                  const hasPapers = papersData[index] && papersData[index].papers && papersData[index].papers.length > 0;
                  
                  if (!hasReport && !hasPapers) return null;
                  
                  return (
                    <div key={index} className="p-2 bg-white/10 rounded-md">
                      <p className="font-medium text-white mb-1">
                        方向 {index + 1}: {topic.english_title || topic.title}
                      </p>
                      
                      {hasReport && (
                        <div className="ml-2 text-sm text-white/80 mb-1 flex items-center">
                          <span className="text-green-400 mr-1">✓</span> 研究报告已生成
                          <button
                            onClick={() => openReportModal(index)}
                            className="ml-2 text-xs text-blue-400 hover:text-blue-300"
                          >
                            查看报告
                          </button>
                        </div>
                      )}
                      
                      {hasPapers && (
                        <div className="ml-2 text-sm text-white/80 flex items-center">
                          <span className="text-green-400 mr-1">✓</span> 已找到 {papersData[index].papers.length} 篇相关论文
                          <button
                            onClick={() => openPapersModal(index)}
                            className="ml-2 text-xs text-blue-400 hover:text-blue-300"
                          >
                            查看论文
                          </button>
                        </div>
                      )}
                    </div>
                  );
                })}
              </div>
            </div>
          )}
        </div>
      )}

      {/* 研究完成后状态显示 */}
      {researchCompleted && !loading && (
        <div className="mt-8 space-y-6">
          {/* 完成状态标志 */}
          <div className="p-4 bg-green-900/30 rounded-lg border border-green-800/50">
            <div className="flex items-center">
              <div className="mr-3">
                <svg className="h-5 w-5 text-green-400" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor">
                  <path fillRule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z" clipRule="evenodd" />
                </svg>
              </div>
              <div>
                <p className="font-medium text-white">研究完成</p>
                <p className="text-sm text-white/80">{processMessage}</p>
              </div>
            </div>
          </div>

          {/* 研究结果 */}
          <div>
            <h3 className="text-xl font-bold text-white">研究结果</h3>
            
            {/* 关键词部分 */}
            {keywordsData && keywordsData.keywords && keywordsData.keywords.length > 0 && (
              <div className="p-4 bg-white/5 rounded-lg mt-4">
                <h4 className="text-lg font-medium text-white mb-2">关键词</h4>
                <div className="flex flex-wrap gap-2">
                  {keywordsData.keywords.map((keyword: string, index: number) => (
                    <span 
                      key={index} 
                      className="px-3 py-1 bg-blue-500/20 rounded-full text-blue-300"
                    >
                      {keyword}
                    </span>
                  ))}
                </div>
              </div>
            )}
            
            {/* 研究报告部分 */}
            {directionsData && directionsData.research_topics && directionsData.research_topics.length > 0 && (
              <div className="space-y-6 mt-4">
                <h4 className="text-lg font-medium text-white">研究报告</h4>
                
                {directionsData.research_topics.map((direction: any, index: number) => {
                  // 检查该方向是否有报告数据
                  const hasReport = reportsData && reportsData[index];
                  
                  if (!hasReport) return null; // 没有报告数据则跳过显示
                  
                  return (
                    <div key={index} className="p-4 bg-white/5 rounded-lg">
                      <h5 className="text-md font-medium text-white mb-3">
                        {index + 1}. {direction.english_title || direction.title}
                      </h5>
                      
                      {/* 方向的关键词 */}
                      {direction.keywords && direction.keywords.length > 0 && (
                        <div className="mb-4">
                          <div className="text-sm text-white/60 mb-1">关键词：</div>
                          <div className="flex flex-wrap gap-1">
                            {direction.keywords.map((kw: string, kidx: number) => (
                              <span key={kidx} className="px-2 py-0.5 text-xs bg-white/10 rounded-full text-white/80">
                                {kw}
                              </span>
                            ))}
                          </div>
                        </div>
                      )}
                      
                      {/* 研究报告与论文分开显示，分别用按钮打开不同模态框 */}
                      <div className="flex flex-wrap gap-4 mb-4">
                        {/* 查看研究报告按钮 */}
                        <button
                          onClick={() => openReportModal(index)}
                          className="inline-flex items-center gap-2 bg-indigo-600 hover:bg-indigo-700 text-white font-medium py-2 px-4 rounded-md transition-colors"
                        >
                          <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
                            <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"></path>
                            <polyline points="14 2 14 8 20 8"></polyline>
                            <line x1="16" y1="13" x2="8" y2="13"></line>
                            <line x1="16" y1="17" x2="8" y2="17"></line>
                            <polyline points="10 9 9 9 8 9"></polyline>
                          </svg>
                          查看研究报告
                        </button>
                        
                        {/* 查看论文列表按钮 */}
                        {papersData[index] && papersData[index].papers && papersData[index].papers.length > 0 && (
                          <button
                            onClick={() => openPapersModal(index)}
                            className="inline-flex items-center gap-2 bg-blue-600 hover:bg-blue-700 text-white font-medium py-2 px-4 rounded-md transition-colors"
                          >
                            <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
                              <path d="M4 19.5A2.5 2.5 0 0 1 6.5 17H20"></path>
                              <path d="M6.5 2H20v20H6.5A2.5 2.5 0 0 1 4 19.5v-15A2.5 2.5 0 0 1 6.5 2z"></path>
                            </svg>
                            查看相关论文 ({papersData[index].papers.length})
                          </button>
                        )}
                      </div>
                      
                      {/* 论文列表预览 - 仅显示标题 */}
                      {papersData[index] && papersData[index].papers && papersData[index].papers.length > 0 && (
                        <div>
                          <div className="text-sm font-medium text-white/80 mb-2">
                            论文预览:
                          </div>
                          
                          <div className="space-y-1.5 mb-2">
                            {papersData[index].papers.slice(0, 2).map((paper: any, pidx: number) => (
                              <a 
                                key={pidx} 
                                href={paper.link || paper.url} 
                                target="_blank"
                                rel="noopener noreferrer"
                                className="text-blue-400 hover:text-blue-300 hover:underline block"
                              >
                                {paper.title}
                              </a>
                            ))}
                            {papersData[index].papers.length > 2 && (
                              <button
                                onClick={() => openPapersModal(index)}
                                className="text-xs text-blue-400 hover:text-blue-300 mt-1"
                              >
                                查看更多...
                              </button>
                            )}
                          </div>
                        </div>
                      )}
                    </div>
                  );
                })}
              </div>
            )}
          </div>
        </div>
      )}

      {/* 论文列表模态框 */}
      {showPapersModal && selectedDirectionIndex !== null && (
        <PapersListModal 
          directionIndex={selectedDirectionIndex}
          directionTitle={
            (directionsData?.research_topics?.[selectedDirectionIndex]?.english_title || 
            directionsData?.research_topics?.[selectedDirectionIndex]?.title) || 
            `研究方向 ${selectedDirectionIndex + 1}`
          }
          papers={papersData[selectedDirectionIndex]?.papers || []}
          onClose={closePapersModal}
        />
      )}

      {/* 研究报告模态框 */}
      {showReportModal && selectedDirectionIndex !== null && (
        <ReportModal 
          directionIndex={selectedDirectionIndex}
          directionTitle={
            (directionsData?.research_topics?.[selectedDirectionIndex]?.english_title || 
            directionsData?.research_topics?.[selectedDirectionIndex]?.title) || 
            `研究方向 ${selectedDirectionIndex + 1}`
          }
          report={reportsData[selectedDirectionIndex]}
          onClose={closeReportModal}
        />
      )}
    </div>
  );
}