// 系统信息 Tab 内容 // Logan.Li
import { Activity, HardDrive } from 'lucide-react';
import { Card, CardContent } from '@/components/ui/card';
import { TabsContent } from '@/components/ui/tabs';
import { parseJSON } from './utils';

interface SystemInfoSectionProps {
  selectedHost: string;
  serverInfo: any;
  latest: any;
  heartbeatInfo: any;
  portInfoCount: number;
}

export function SystemInfoSection({
  selectedHost, serverInfo, latest, heartbeatInfo, portInfoCount,
}: SystemInfoSectionProps) {
  const disk = latest?.disk_info ? parseJSON(latest.disk_info) : null;
  const parts = disk ? (Array.isArray(disk) ? disk : (disk.partitions || [])) : [];

  return (
    <TabsContent value="system" className="mt-3 space-y-3">
      <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
        <CardContent className="p-4">
          <div className="grid grid-cols-2 md:grid-cols-4 gap-x-6 gap-y-3 text-xs">
            {[
              ['主机名', serverInfo?.hostname || selectedHost],
              ['IP 地址', serverInfo?.ip || '—'],
              ['操作系统', serverInfo?.os || '—'],
              ['内核版本', serverInfo?.kernel || '—'],
              ['CPU 核心数', serverInfo?.cpu_cores || '—'],
              ['总内存', serverInfo?.mem_total ? `${serverInfo.mem_total.toFixed(0)} GB` : '—'],
              ['已用内存', serverInfo?.mem_used ? `${serverInfo.mem_used.toFixed(1)} GB` : '—'],
              ['运行时长', serverInfo?.uptime ? `${Math.floor(serverInfo.uptime / 86400)}天 ${Math.floor((serverInfo.uptime % 86400) / 3600)}时` : '—'],
              ['Agent 版本', heartbeatInfo?.version || serverInfo?.agent_version || '—'],
              ['Agent 序列号', heartbeatInfo?.report_seq != null ? String(heartbeatInfo.report_seq) : '—'],
              ['监听端口数', portInfoCount > 0 ? `${portInfoCount}` : '—'],
              ['Agent RSS', heartbeatInfo?.self_rss_mb ? `${heartbeatInfo.self_rss_mb.toFixed(1)} MB` : '—'],
            ].map(([label, val]) => (
              <div key={label as string}>
                <span className="text-[var(--dg-text-muted)]">{label}：</span>
                <span className="text-[var(--dg-text-primary)] font-mono">{val}</span>
              </div>
            ))}
          </div>
        </CardContent>
      </Card>

      {latest && (
        <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
          <CardContent className="p-4">
            <div className="flex items-center gap-2 mb-2">
              <Activity className="h-4 w-4 text-[var(--dg-text-muted)]" />
              <h3 className="text-xs font-medium text-[var(--dg-text-primary)]">系统负载 (Load Average)</h3>
            </div>
            <div className="flex items-center gap-6 text-xs">
              <div><span className="text-[var(--dg-text-muted)]">1min </span><span className="text-sm font-bold text-slate-200">{latest.load1 ?? '--'}</span></div>
              <div><span className="text-[var(--dg-text-muted)]">5min </span><span className="text-sm font-bold text-slate-200">{latest.load5 ?? '--'}</span></div>
              <div><span className="text-[var(--dg-text-muted)]">15min </span><span className="text-sm font-bold text-slate-200">{latest.load15 ?? '--'}</span></div>
            </div>
          </CardContent>
        </Card>
      )}

      {parts.length > 0 && (
        <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
          <CardContent className="p-4">
            <h3 className="text-xs font-medium text-[var(--dg-text-primary)] mb-2 flex items-center gap-2"><HardDrive className="h-4 w-4" />磁盘分区</h3>
            <div className="space-y-1.5">
              {parts.map((p: any, i: number) => (
                <div key={i} className="flex items-center gap-2 text-xs">
                  <span className="text-[var(--dg-text-muted)] w-24 font-mono truncate">{p.mount || p.mountpoint || p.device || `disk${i}`}</span>
                  <div className="flex-1 h-1.5 bg-slate-700 rounded-full overflow-hidden">
                    <div className="h-full rounded-full bg-blue-500" style={{ width: `${Math.min(p.usage_percent || p.used_percent || 0, 100)}%` }} />
                  </div>
                  <span className="text-[var(--dg-text-primary)] w-28 text-right tabular-nums whitespace-nowrap">{(p.used_gb ?? 0).toFixed(1)}/{(p.total_gb ?? 0).toFixed(0)}GB</span>
                  <span className="text-blue-400 w-14 text-right tabular-nums whitespace-nowrap">{(p.usage_percent ?? p.used_percent ?? 0).toFixed(1)}%</span>
                </div>
              ))}
            </div>
          </CardContent>
        </Card>
      )}
    </TabsContent>
  );
}