// LogClusterPanel.tsx — 日志聚类面板 // Logan.Li
import { useState } from 'react';
import { ChevronDown, ChevronRight, Copy, Check } from 'lucide-react';
import type { LogCluster } from './types-v3';
import { useTranslation } from 'react-i18next';

interface Props {
  clusters: LogCluster[];
}

function PatternHighlight({ pattern }: { pattern: string }) {
  const { t } = useTranslation();
  // 将 * 高亮显示 // Logan.Li
  const parts = pattern.split('*');
  return (
    <span className="text-xs font-mono">
      {parts.map((part, i) => (
        <span key={i}>
          {part}
          {i < parts.length - 1 && <span className="px-1 rounded" style={{ background: 'rgba(245,158,11,0.2)', color: '#f59e0b', fontWeight: 600 }}>*</span>}
        </span>
      ))}
    </span>
  );
}

export function LogClusterPanel({ clusters }: Props) {
  const { t } = useTranslation();
  const [expanded, setExpanded] = useState<Record<number, boolean>>({});
  const [copied, setCopied] = useState<number | null>(null);

  const toggleExpand = (i: number) => setExpanded(prev => ({ ...prev, [i]: !prev[i] }));

  const copySample = (i: number, text: string) => {
    navigator.clipboard.writeText(text);
    setCopied(i);
    setTimeout(() => setCopied(null), 1500);
  };

  const total = clusters.reduce((sum, c) => sum + c.count, 0);

  return (
    <div className="border rounded-lg overflow-hidden" style={{ borderColor: 'var(--dg-border)' }}>
      {/* 头部 */}
      <div className="flex items-center justify-between px-4 py-2" style={{ background: 'var(--dg-bg-tertiary)', borderBottom: '1px solid var(--dg-border)' }}>
        <span className="text-xs" style={{ color: 'var(--dg-text-muted)' }}>共 {clusters.length} 个聚类模式，总计 {total.toLocaleString()} 条日志</span>
        <span className="text-[10px]" style={{ color: 'var(--dg-text-muted)' }}>{t('monitor.logclusterpanel.s381127')}</span>
      </div>

      {/* 聚类列表 */}
      <div>
        {clusters.map((cluster, i) => (
          <div key={i} style={{ borderBottom: '1px solid var(--dg-border)' }}>
            <div
              className="flex items-center gap-3 px-4 py-2.5 cursor-pointer hover:opacity-90 transition-colors"
              style={{ background: 'var(--dg-bg-secondary)' }}
              onClick={() => toggleExpand(i)}
            >
              <span className="flex-shrink-0" style={{ color: 'var(--dg-text-muted)' }}>
                {expanded[i] ? <ChevronDown className="h-3.5 w-3.5" /> : <ChevronRight className="h-3.5 w-3.5" />}
              </span>

              {/* 模式 */}
              <div className="flex-1 min-w-0">
                <PatternHighlight pattern={cluster.pattern} />
              </div>

              {/* 数量 */}
              <span className="text-xs font-medium flex-shrink-0" style={{ color: 'var(--dg-text-primary)' }}>
                {cluster.count.toLocaleString()}
              </span>

              {/* 百分比 */}
              <div className="flex-shrink-0 w-[80px]">
                <div className="flex items-center gap-1.5">
                  <div className="flex-1 h-1.5 rounded-full overflow-hidden" style={{ background: 'var(--dg-bg-tertiary)' }}>
                    <div className="h-full rounded-full" style={{ width: `${cluster.percentage}%`, background: 'var(--dg-blue)' }} />
                  </div>
                  <span className="text-[10px] flex-shrink-0" style={{ color: 'var(--dg-text-muted)' }}>{cluster.percentage.toFixed(1)}%</span>
                </div>
              </div>

              {/* 复制 */}
              <button
                onClick={e => { e.stopPropagation(); copySample(i, cluster.sample); }}
                className="flex-shrink-0 opacity-0 group-hover:opacity-100 transition-opacity"
                style={{ color: 'var(--dg-text-muted)' }}
              >
                {copied === i ? <Check className="h-3 w-3 dg-text-green" /> : <Copy className="h-3 w-3" />}
              </button>
            </div>

            {/* 展开详情 */}
            {expanded[i] && (
              <div className="px-4 py-3 animate-fade-in" style={{ background: 'var(--dg-bg-primary)', paddingLeft: '48px' }}>
                <p className="text-[10px] mb-1" style={{ color: 'var(--dg-text-muted)' }}>{t('monitor.logclusterpanel.se909e4')}</p>
                <div className="p-2 rounded text-[11px] font-mono break-all" style={{ background: 'var(--dg-bg-tertiary)', color: 'var(--dg-text-secondary)' }}>
                  {cluster.sample}
                </div>
                <div className="flex gap-4 mt-2 text-[10px]" style={{ color: 'var(--dg-text-muted)' }}>
                  <span>数量：{cluster.count.toLocaleString()}</span>
                  <span>占比：{cluster.percentage.toFixed(2)}%</span>
                </div>
              </div>
            )}
          </div>
        ))}
      </div>
    </div>
  );
}