/**
 * 方法学评估报告组件 - 专业版
 */
import { XCircle, AlertTriangle, CheckCircle, Microscope, Lightbulb, MapPin, TrendingUp } from 'lucide-react';
import type { MethodologyReviewResult } from '../types';

interface MethodologyReportProps {
  data: MethodologyReviewResult;
}

export default function MethodologyReport({ data }: MethodologyReportProps) {
  // 统计问题数量
  const totalIssues = data.parts.reduce((sum, part) => sum + part.issues.length, 0);
  const majorIssues = data.parts.reduce((sum, part) => sum + part.issues.filter(i => i.severity === 'major').length, 0);
  const minorIssues = totalIssues - majorIssues;

  const getSeverityStyle = (severity: 'major' | 'minor') => {
    return severity === 'major' 
      ? { icon: <XCircle className="w-4 h-4 text-red-500" />, label: '严重', badge: 'bg-red-100 text-red-700 border-red-200' }
      : { icon: <AlertTriangle className="w-4 h-4 text-amber-500" />, label: '轻微', badge: 'bg-amber-100 text-amber-700 border-amber-200' };
  };

  const getScoreGrade = (score: number) => {
    if (score >= 90) return { label: '优秀', color: 'text-green-600', bg: 'bg-green-500' };
    if (score >= 80) return { label: '良好', color: 'text-green-600', bg: 'bg-green-500' };
    if (score >= 70) return { label: '中等', color: 'text-amber-600', bg: 'bg-amber-500' };
    if (score >= 60) return { label: '及格', color: 'text-amber-600', bg: 'bg-amber-500' };
    return { label: '不及格', color: 'text-red-600', bg: 'bg-red-500' };
  };

  const getOverallStatus = () => {
    if (data.overall_score >= 80) return { label: '通过', color: 'text-green-700', bg: 'bg-green-50', border: 'border-green-200' };
    if (data.overall_score >= 60) return { label: '存疑', color: 'text-amber-700', bg: 'bg-amber-50', border: 'border-amber-200' };
    return { label: '不通过', color: 'text-red-700', bg: 'bg-red-50', border: 'border-red-200' };
  };

  const grade = getScoreGrade(data.overall_score);
  const status = getOverallStatus();

  return (
    <div className="space-y-6 fade-in">
      {/* 评分总览卡片 */}
      <div className="bg-white rounded-2xl shadow-sm border border-gray-100 overflow-hidden">
        <div className="p-6 bg-gradient-to-r from-slate-50 to-white">
          <div className="flex items-start gap-8">
            {/* 分数环 */}
            <div className="flex flex-col items-center">
              <div className={`w-24 h-24 rounded-full border-4 ${grade.bg.replace('bg-', 'border-')} flex items-center justify-center bg-white shadow-lg`}>
                <div className="text-center">
                  <span className={`text-3xl font-bold ${grade.color}`}>{data.overall_score}</span>
                  <span className="text-xs text-slate-400 block">分</span>
                </div>
              </div>
              <span className={`mt-2 px-3 py-1 rounded-full text-xs font-bold ${grade.bg} text-white`}>
                {grade.label}
              </span>
            </div>
            
            {/* 评估摘要 */}
            <div className="flex-1">
              <div className="flex items-center gap-2 mb-2">
                <Microscope className="w-5 h-5 text-purple-500" />
                <h3 className="font-bold text-lg text-slate-800">方法学评估</h3>
                <span className={`px-2.5 py-1 rounded-md text-xs font-bold ${status.bg} ${status.color} ${status.border} border`}>
                  {status.label}
                </span>
              </div>
              <p className="text-slate-600 text-sm leading-relaxed mb-4">{data.summary}</p>
              
              {/* 统计指标 */}
              <div className="flex gap-4">
                <div className="flex items-center gap-2 px-3 py-1.5 bg-slate-50 rounded-lg border border-slate-200">
                  <span className="text-sm text-slate-600">共检测 <span className="font-bold text-slate-800">{data.parts.length}</span> 个方面</span>
                </div>
                {totalIssues === 0 ? (
                  <div className="flex items-center gap-2 px-3 py-1.5 bg-green-50 rounded-lg border border-green-100">
                    <CheckCircle className="w-4 h-4 text-green-500" />
                    <span className="text-sm font-medium text-green-700">未发现问题</span>
                  </div>
                ) : (
                  <>
                    {majorIssues > 0 && (
                      <div className="flex items-center gap-2 px-3 py-1.5 bg-red-50 rounded-lg border border-red-100">
                        <XCircle className="w-4 h-4 text-red-500" />
                        <span className="text-sm font-medium text-red-700">{majorIssues} 个严重问题</span>
                      </div>
                    )}
                    {minorIssues > 0 && (
                      <div className="flex items-center gap-2 px-3 py-1.5 bg-amber-50 rounded-lg border border-amber-100">
                        <AlertTriangle className="w-4 h-4 text-amber-500" />
                        <span className="text-sm font-medium text-amber-700">{minorIssues} 个轻微问题</span>
                      </div>
                    )}
                  </>
                )}
              </div>
            </div>
          </div>
        </div>
      </div>

      {/* 分项详情标题 */}
      <div className="flex items-center gap-3">
        <TrendingUp className="w-5 h-5 text-purple-500" />
        <h3 className="font-bold text-base text-slate-800">分项评估</h3>
        <span className="text-xs text-slate-400 bg-slate-100 px-2 py-0.5 rounded">共 {data.parts.length} 项</span>
      </div>

      {/* 分项详情 */}
      <div className="space-y-4">
        {data.parts.map((part, partIndex) => (
          <div key={partIndex} className="bg-white rounded-xl shadow-sm border border-gray-100 overflow-hidden">
            {/* 分项头部 */}
            <div className={`px-5 py-4 border-b ${part.issues.length === 0 ? 'bg-green-50/50 border-green-100' : 'bg-slate-50 border-slate-100'}`}>
              <div className="flex items-center justify-between">
                <div className="flex items-center gap-3">
                  {part.issues.length === 0 ? (
                    <CheckCircle className="w-5 h-5 text-green-500" />
                  ) : (
                    <AlertTriangle className="w-5 h-5 text-amber-500" />
                  )}
                  <h4 className="font-semibold text-slate-800">{part.part}</h4>
                </div>
                <div className="flex items-center gap-3">
                  <span className={`px-2.5 py-1 rounded-md text-xs font-bold ${
                    part.score >= 80 ? 'bg-green-100 text-green-700' : 
                    part.score >= 60 ? 'bg-amber-100 text-amber-700' : 'bg-red-100 text-red-700'
                  }`}>
                    {part.score}分
                  </span>
                  {part.issues.length === 0 ? (
                    <span className="px-2.5 py-1 rounded-md text-xs font-medium bg-green-100 text-green-700 flex items-center gap-1">
                      <CheckCircle className="w-3 h-3" />
                      无问题
                    </span>
                  ) : (
                    <span className="px-2.5 py-1 rounded-md text-xs font-medium bg-amber-100 text-amber-700">
                      {part.issues.length} 个问题
                    </span>
                  )}
                </div>
              </div>
            </div>
            
            {/* 问题列表 */}
            {part.issues.length > 0 && (
              <div className="divide-y divide-gray-50">
                {part.issues.map((issue, issueIndex) => {
                  const severity = getSeverityStyle(issue.severity);
                  return (
                    <div key={issueIndex} className="px-5 py-4">
                      <div className="flex items-start gap-4">
                        <div className="mt-0.5">{severity.icon}</div>
                        <div className="flex-1 space-y-3">
                          {/* 问题标题和严重程度 */}
                          <div className="flex items-center gap-2 flex-wrap">
                            <span className="font-semibold text-slate-800">{issue.type}</span>
                            <span className={`px-2 py-0.5 rounded text-xs font-medium border ${severity.badge}`}>
                              {severity.label}
                            </span>
                          </div>
                          
                          {/* 问题描述 */}
                          <p className="text-sm text-slate-600 leading-relaxed">{issue.description}</p>
                          
                          {/* 位置信息 */}
                          {issue.location && (
                            <div className="flex items-center gap-2 text-xs text-slate-400">
                              <MapPin className="w-3.5 h-3.5" />
                              <span>位置：{issue.location}</span>
                            </div>
                          )}
                          
                          {/* 改进建议 */}
                          {issue.suggestion && (
                            <div className="bg-indigo-50/50 rounded-lg p-3 border border-indigo-100">
                              <div className="flex items-start gap-2">
                                <Lightbulb className="w-4 h-4 text-indigo-500 mt-0.5 flex-shrink-0" />
                                <div>
                                  <p className="text-xs font-semibold text-indigo-600 mb-1">改进建议</p>
                                  <p className="text-sm text-slate-700">{issue.suggestion}</p>
                                </div>
                              </div>
                            </div>
                          )}
                        </div>
                      </div>
                    </div>
                  );
                })}
              </div>
            )}
            
            {/* 无问题时的简洁显示 */}
            {part.issues.length === 0 && (
              <div className="px-5 py-4 text-sm text-green-600 flex items-center gap-2">
                <CheckCircle className="w-4 h-4" />
                <span>该部分未发现方法学问题，符合规范要求</span>
              </div>
            )}
          </div>
        ))}
      </div>
    </div>
  );
}