/**
 * 任务表格组件
 */
import { FileText, FileType2, Loader2, Play, Eye, RefreshCw, Trash2 } from 'lucide-react';
import type { ReviewTask } from '../types';
import { formatFileSize, formatTime } from '../api';

interface TaskTableProps {
  tasks: ReviewTask[];
  selectedIds: string[];
  onSelectChange: (ids: string[]) => void;
  onViewReport: (task: ReviewTask) => void;
  onRunTask: (task: ReviewTask) => void;
  onDeleteTask: (task: ReviewTask) => void;
}

export default function TaskTable({ 
  tasks, 
  selectedIds, 
  onSelectChange, 
  onViewReport,
  onRunTask,
  onDeleteTask
}: TaskTableProps) {
  const allSelected = tasks.length > 0 && selectedIds.length === tasks.length;

  const toggleSelectAll = () => {
    if (allSelected) {
      onSelectChange([]);
    } else {
      onSelectChange(tasks.map(t => t.id));
    }
  };

  const toggleSelect = (id: string) => {
    if (selectedIds.includes(id)) {
      onSelectChange(selectedIds.filter(i => i !== id));
    } else {
      onSelectChange([...selectedIds, id]);
    }
  };

  // 获取文件图标
  const getFileIcon = (fileName: string) => {
    if (fileName.endsWith('.pdf')) {
      return <FileText className="w-5 h-5" />;
    }
    return <FileType2 className="w-5 h-5" />;
  };

  // 获取文件图标容器样式
  const getFileIconStyle = (fileName: string) => {
    if (fileName.endsWith('.pdf')) {
      return 'bg-red-50 text-red-600 border-red-100';
    }
    return 'bg-blue-50 text-blue-600 border-blue-100';
  };

  // 渲染智能体标签
  const renderAgentTags = (task: ReviewTask) => {
    if (!task.selectedAgents || task.selectedAgents.length === 0) {
      return <span className="tag tag-gray">未运行</span>;
    }
    
    return (
      <div className="flex gap-1.5">
        {task.selectedAgents.includes('editorial') && (
          <span className="tag tag-blue">规范性</span>
        )}
        {task.selectedAgents.includes('methodology') && (
          <span className="tag tag-purple">方法学</span>
        )}
      </div>
    );
  };

  // 渲染结果摘要
  const renderResultSummary = (task: ReviewTask) => {
    if (task.status === 'pending') {
      return <span className="text-xs text-slate-400 italic">等待发起...</span>;
    }
    
    if (task.status === 'extracting' || task.status === 'reviewing') {
      return (
        <div className="flex items-center gap-2 text-xs text-indigo-600">
          <Loader2 className="w-3 h-3 animate-spin" />
          <span>{task.status === 'extracting' ? '提取文本中...' : '审查中...'}</span>
        </div>
      );
    }
    
    if (task.status === 'failed') {
      return <span className="text-xs text-red-500">失败</span>;
    }
    
    if (task.status === 'completed') {
      return (
        <div className="flex flex-col gap-1.5">
          {task.editorialScore !== undefined && (
            <div className="flex items-center gap-2 text-xs">
              <div className={`w-2 h-2 rounded-full ${task.editorialScore >= 80 ? 'bg-green-500' : task.editorialScore >= 60 ? 'bg-amber-500' : 'bg-red-500'}`} />
              <span className="text-slate-600">规范性:</span>
              <span className={`font-bold ${task.editorialScore >= 80 ? 'text-green-700' : task.editorialScore >= 60 ? 'text-amber-700' : 'text-red-700'}`}>
                {task.editorialScore}分
              </span>
            </div>
          )}
          {task.methodologyStatus && (
            <div className="flex items-center gap-2 text-xs">
              <div className={`w-2 h-2 rounded-full ${
                task.methodologyStatus === '通过' ? 'bg-green-500' : 
                task.methodologyStatus === '存疑' ? 'bg-amber-500' : 'bg-red-500'
              }`} />
              <span className="text-slate-600">方法学:</span>
              <span className={`font-bold ${
                task.methodologyStatus === '通过' ? 'text-green-700' : 
                task.methodologyStatus === '存疑' ? 'text-amber-700' : 'text-red-700'
              }`}>
                {task.methodologyStatus}
              </span>
            </div>
          )}
        </div>
      );
    }
    
    return null;
  };

  // 渲染操作按钮
  const renderActions = (task: ReviewTask) => {
    // 待审稿：[开始审稿] [删除]
    if (task.status === 'pending') {
      return (
        <div className="flex items-center justify-end gap-2">
          <button 
            onClick={() => onRunTask(task)}
            className="bg-indigo-600 hover:bg-indigo-700 text-white px-3 py-1.5 rounded-md transition-colors text-xs font-medium flex items-center gap-1"
          >
            <Play className="w-3 h-3" />
            开始审稿
          </button>
          <button 
            onClick={() => onDeleteTask(task)}
            className="text-slate-400 hover:text-red-500 hover:bg-red-50 p-1.5 rounded-md transition-colors"
            title="删除"
          >
            <Trash2 className="w-4 h-4" />
          </button>
        </div>
      );
    }
    
    // 处理中：[查看进度]
    if (['extracting', 'reviewing', 'reviewing_editorial', 'reviewing_methodology'].includes(task.status)) {
      return (
        <button 
          onClick={() => onViewReport(task)}
          className="text-indigo-600 hover:bg-indigo-50 px-3 py-1.5 rounded-md transition-colors text-xs font-medium flex items-center gap-1"
        >
          <Loader2 className="w-3 h-3 animate-spin" />
          查看进度
        </button>
      );
    }
    
    // 已完成：[查看报告] [重新审稿] [删除]
    if (task.status === 'completed') {
      return (
        <div className="flex items-center justify-end gap-2">
          <button 
            onClick={() => onViewReport(task)}
            className="text-indigo-600 font-bold hover:bg-indigo-50 px-3 py-1.5 rounded-md transition-colors text-xs flex items-center gap-1"
          >
            <Eye className="w-3 h-3" />
            查看报告
          </button>
          <button 
            onClick={() => onRunTask(task)}
            className="text-slate-500 hover:text-indigo-600 hover:bg-indigo-50 p-1.5 rounded-md transition-colors"
            title="重新审稿"
          >
            <RefreshCw className="w-4 h-4" />
          </button>
          <button 
            onClick={() => onDeleteTask(task)}
            className="text-slate-400 hover:text-red-500 hover:bg-red-50 p-1.5 rounded-md transition-colors"
            title="删除"
          >
            <Trash2 className="w-4 h-4" />
          </button>
        </div>
      );
    }
    
    // 失败：[重新审稿] [删除]
    if (task.status === 'failed') {
      return (
        <div className="flex items-center justify-end gap-2">
          <button 
            onClick={() => onRunTask(task)}
            className="border border-indigo-200 text-indigo-600 hover:bg-indigo-50 px-3 py-1.5 rounded-md transition-colors text-xs font-medium flex items-center gap-1"
          >
            <RefreshCw className="w-3 h-3" />
            重新审稿
          </button>
          <button 
            onClick={() => onDeleteTask(task)}
            className="text-slate-400 hover:text-red-500 hover:bg-red-50 p-1.5 rounded-md transition-colors"
            title="删除"
          >
            <Trash2 className="w-4 h-4" />
          </button>
        </div>
      );
    }
    
    return null;
  };

  if (tasks.length === 0) {
    return (
      <div className="bg-white border border-gray-200 rounded-xl shadow-sm p-12 text-center">
        <FileText className="w-12 h-12 text-slate-300 mx-auto mb-4" />
        <p className="text-slate-500">暂无稿件，请上传新稿件开始审查</p>
      </div>
    );
  }

  return (
    <div className="bg-white border border-gray-200 rounded-xl shadow-sm overflow-hidden">
      <table className="w-full text-left text-sm">
        <thead className="bg-gray-50 border-b border-gray-200 text-gray-500 font-semibold uppercase tracking-wider text-xs">
          <tr>
            <th className="px-6 py-4 w-12">
              <input 
                type="checkbox" 
                checked={allSelected}
                onChange={toggleSelectAll}
                className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500 cursor-pointer"
              />
            </th>
            <th className="px-6 py-4 w-1/3">文件名称 / 信息</th>
            <th className="px-6 py-4">上传时间</th>
            <th className="px-6 py-4">审稿维度</th>
            <th className="px-6 py-4">结果摘要</th>
            <th className="px-6 py-4 text-right">操作</th>
          </tr>
        </thead>
        <tbody className="divide-y divide-gray-100">
          {tasks.map(task => (
            <tr 
              key={task.id}
              className={`hover:bg-slate-50 group transition-colors ${selectedIds.includes(task.id) ? 'bg-blue-50' : ''}`}
            >
              <td className="px-6 py-4">
                <input 
                  type="checkbox"
                  checked={selectedIds.includes(task.id)}
                  onChange={() => toggleSelect(task.id)}
                  className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500 cursor-pointer"
                />
              </td>
              <td className="px-6 py-4">
                <div className="flex items-center gap-3">
                  <div className={`p-2.5 rounded-lg border ${getFileIconStyle(task.fileName)}`}>
                    {getFileIcon(task.fileName)}
                  </div>
                  <div>
                    <div 
                      className={`font-bold text-slate-800 text-base mb-0.5 ${task.status === 'completed' ? 'cursor-pointer hover:text-indigo-600' : ''}`}
                      onClick={() => task.status === 'completed' && onViewReport(task)}
                    >
                      {task.fileName}
                    </div>
                    <div className="text-xs text-slate-400 flex items-center gap-2">
                      <span className="bg-slate-100 px-1.5 rounded">{formatFileSize(task.fileSize)}</span>
                      {task.wordCount && (
                        <>
                          <span>•</span>
                          <span>{task.wordCount.toLocaleString()} 字</span>
                        </>
                      )}
                    </div>
                  </div>
                </div>
              </td>
              <td className="px-6 py-4 text-slate-500 font-mono text-xs">
                {formatTime(task.createdAt)}
              </td>
              <td className="px-6 py-4">
                {renderAgentTags(task)}
              </td>
              <td className="px-6 py-4">
                {renderResultSummary(task)}
              </td>
              <td className="px-6 py-4 text-right">
                {renderActions(task)}
              </td>
            </tr>
          ))}
        </tbody>
      </table>
    </div>
  );
}