// 终端审计 — 历史会话子面板 // Logan.Li

import { useState } from 'react';
import { Card, CardContent } from '@/components/ui/card';
import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import {
  Table,
  TableBody,
  TableCell,
  TableHead,
  TableHeader,
  TableRow,
} from '@/components/ui/table';
import { Search, RefreshCw, Play, Download, Monitor } from 'lucide-react';
import { terminalSessionApi } from '@/api';
import { ReplayDialog } from '@/components/system/ReplayDialog';
import { useTerminalSessions } from '@/hooks/api';
import { formatDuration, getStatusBadge } from './helpers';

export function HistorySessionsPanel() {
  const { data: sessions = [], isLoading, refetch } = useTerminalSessions({
    page: 1,
    page_size: 100,
    status: 'closed',
  });

  const [keyword, setKeyword] = useState('');
  const [replayId, setReplayId] = useState<number | null>(null);
  const [replayOpen, setReplayOpen] = useState(false);

  const filtered = sessions.filter((s) => {
    const kw = keyword.toLowerCase();
    return (
      !kw ||
      (s.username || '').toLowerCase().includes(kw) ||
      (s.server_name || '').toLowerCase().includes(kw) ||
      (s.server_ip || '').toLowerCase().includes(kw)
    );
  });

  const openReplay = (id: number) => {
    setReplayId(id);
    setReplayOpen(true);
  };

  const handleDownload = async (id: number) => {
    try {
      await terminalSessionApi.download(id);
    } catch {
      // download error is handled in http.download
    }
  };

  return (
    <>
      <div className="flex items-center gap-3 flex-wrap">
        <div className="relative w-64">
          <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-slate-500" />
          <Input
            placeholder="搜索用户/服务器/IP..."
            value={keyword}
            onChange={(e) => setKeyword(e.target.value)}
            className="pl-9 h-9 bg-slate-800/50 border-slate-700 text-slate-200 placeholder:text-slate-500"
          />
        </div>
        <Button
          variant="outline"
          className="border-slate-700 text-slate-300 hover:text-slate-100 hover:bg-slate-800"
          onClick={() => refetch()}
        >
          <RefreshCw className="h-4 w-4 mr-2" />
          刷新
        </Button>
      </div>

      <Card className="bg-slate-900 border-slate-800">
        <CardContent className="p-0">
          <div className="border-t border-slate-800">
            {isLoading ? (
              <div className="flex items-center justify-center py-16">
                <div className="w-8 h-8 border-2 border-blue-500 border-t-transparent rounded-full animate-spin" />
              </div>
            ) : filtered.length === 0 ? (
              <div className="flex flex-col items-center justify-center py-16 text-slate-500">
                <Monitor className="h-8 w-8 mb-3 opacity-40" />
                <p className="text-sm">暂无历史会话</p>
              </div>
            ) : (
              <Table>
                <TableHeader>
                  <TableRow className="border-slate-800 hover:bg-transparent">
                    <TableHead className="text-slate-400">ID</TableHead>
                    <TableHead className="text-slate-400">用户</TableHead>
                    <TableHead className="text-slate-400">目标服务器</TableHead>
                    <TableHead className="text-slate-400">端口</TableHead>
                    <TableHead className="text-slate-400">开始时间</TableHead>
                    <TableHead className="text-slate-400">结束时间</TableHead>
                    <TableHead className="text-slate-400">时长</TableHead>
                    <TableHead className="text-slate-400">状态</TableHead>
                    <TableHead className="text-slate-400 text-right">操作</TableHead>
                  </TableRow>
                </TableHeader>
                <TableBody>
                  {filtered.map((s) => (
                    <TableRow key={s.id} className="border-slate-800 hover:bg-slate-800/50">
                      <TableCell>
                        <span className="text-sm text-slate-400">{s.id}</span>
                      </TableCell>
                      <TableCell>
                        <span className="text-sm text-slate-200">{s.username || '--'}</span>
                      </TableCell>
                      <TableCell>
                        <div className="flex flex-col">
                          <span className="text-sm text-slate-200">{s.server_name || '--'}</span>
                          <span className="text-xs text-slate-500">{s.server_ip}</span>
                        </div>
                      </TableCell>
                      <TableCell>
                        <span className="text-sm text-slate-400">{s.server_port}</span>
                      </TableCell>
                      <TableCell>
                        <span className="text-sm text-slate-400">
                          {s.start_time ? new Date(s.start_time).toLocaleString() : '--'}
                        </span>
                      </TableCell>
                      <TableCell>
                        <span className="text-sm text-slate-400">
                          {s.end_time ? new Date(s.end_time).toLocaleString() : '--'}
                        </span>
                      </TableCell>
                      <TableCell>
                        <span className="text-sm text-slate-300">{formatDuration(s.duration)}</span>
                      </TableCell>
                      <TableCell>{getStatusBadge(s.status)}</TableCell>
                      <TableCell>
                        <div className="flex items-center justify-end gap-1">
                          <Button
                            variant="ghost"
                            size="icon"
                            className="h-8 w-8 text-slate-400 hover:text-blue-400 hover:bg-slate-800"
                            onClick={() => openReplay(s.id)}
                            title="回放"
                          >
                            <Play className="h-4 w-4" />
                          </Button>
                          <Button
                            variant="ghost"
                            size="icon"
                            className="h-8 w-8 text-slate-400 hover:text-green-400 hover:bg-slate-800"
                            onClick={() => handleDownload(s.id)}
                            title="下载录制"
                          >
                            <Download className="h-4 w-4" />
                          </Button>
                        </div>
                      </TableCell>
                    </TableRow>
                  ))}
                </TableBody>
              </Table>
            )}
          </div>
        </CardContent>
      </Card>

      <ReplayDialog open={replayOpen} onOpenChange={setReplayOpen} sessionId={replayId} />
    </>
  );
}