import {
  Activity,
  CheckCircle2,
  XCircle,
  Clock,
  RefreshCw,
  Play,
  Search,
  Server,
  ListIcon,
  AlertTriangle,
  Settings,
  ChevronDown,
  ChevronRight,
} from "lucide-react";
import React, { useEffect, useState, useCallback, useMemo } from "react";
import { Collapsible, CollapsibleContent, CollapsibleTrigger } from "../ui/collapsible";
import { Button } from "../ui/button";
import { Input } from "../ui/input";
import { Badge } from "../ui/badge";
import { Switch } from "../ui/switch";
import { Label } from "../ui/label";
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "../ui/select";
import {
  Dialog,
  DialogContent,
  DialogHeader,
  DialogTitle,
  DialogFooter,
} from "../ui/dialog";
import {
  inspectionDeviceApi,
  inspectionCatalogApi,
  inspectionResultApi,
  inspectionExecApi,
  inspectionAlertApi,
  type DeviceExtension,
  type DeviceCatalog,
  type InspectionResult,
  type AlertStats,
} from "../../infrastructure/inspection/inspectionApi";
import { useVaultState } from "../../application/state/useVaultState";
import { toast } from "../ui/toast";

const TIER_LABELS: Record<string, string> = {
  core: "核心级",
  aggregation: "重要级",
  access: "一般",
};

interface DeviceRow {
  hostId: string;
  hostName: string;
  hostAddress: string;
  hostPlatform: string;
  catalogId: string;
  catalogName: string;
  tier: string;
  enabled: boolean;
  interval: number;
  intervalLabel: string;
  lastStatus: "success" | "failed" | "never";
  lastTime: number | null;
  lastResult?: InspectionResult;
}

export function InspectionCenterPage() {
  const { hosts, keys } = useVaultState();
  const [extensions, setExtensions] = useState<Record<string, DeviceExtension>>({});
  const [catalogs, setCatalogs] = useState<DeviceCatalog[]>([]);
  const [latestResults, setLatestResults] = useState<Record<string, InspectionResult>>({});
  const [alertStats, setAlertStats] = useState<AlertStats | null>(null);
  const [loading, setLoading] = useState(true);
  const [refreshing, setRefreshing] = useState(false);

  // 筛选
  const [searchText, setSearchText] = useState("");
  const [filterCatalog, setFilterCatalog] = useState<string>("all");
  const [filterTier, setFilterTier] = useState<string>("all");
  const [filterStatus, setFilterStatus] = useState<string>("all");

  // 详情抽屉
  const [detailHostId, setDetailHostId] = useState<string | null>(null);
  const [detailResults, setDetailResults] = useState<InspectionResult[]>([]);
  const [detailLoading, setDetailLoading] = useState(false);

  // 配置弹窗
  const [configOpen, setConfigOpen] = useState(false);
  const [configHostId, setConfigHostId] = useState<string | null>(null);
  const [configSaving, setConfigSaving] = useState(false);
  const [configForm, setConfigForm] = useState({
    inspection_enabled: true,
    catalog_id: "",
    tier: "",
    inspection_interval: "" as string,
  });

  const loadData = useCallback(async () => {
    setRefreshing(true);
    try {
      const [extMap, catList, results, stats] = await Promise.all([
        inspectionDeviceApi.getAll(),
        inspectionCatalogApi.list(),
        inspectionResultApi.getLatestAll(),
        inspectionAlertApi.getStats(),
      ]);
      setExtensions(extMap || {});
      setCatalogs(Array.isArray(catList) ? catList : []);
      if (Array.isArray(results)) {
        const map: Record<string, InspectionResult> = {};
        results.forEach((r) => {
          if (r.device_id) map[r.device_id] = r;
        });
        setLatestResults(map);
      }
      setAlertStats(stats);
    } catch (e: any) {
      console.error("[InspectionCenter] 加载失败:", e);
    } finally {
      setLoading(false);
      setRefreshing(false);
    }
  }, []);

  useEffect(() => {
    loadData();
  }, [loadData]);

  // 构建设备行数据
  const deviceRows = useMemo<DeviceRow[]>(() => {
    return (hosts || [])
      .filter((h) => h && h.id)
      .map((host) => {
        const ext = extensions[host.id];
        const catalog = catalogs.find((c) => c.id === ext?.catalog_id);
        const lastResult = latestResults[host.id];
        const lastStatus: "success" | "failed" | "never" = lastResult
          ? lastResult.status === "success"
            ? "success"
            : "failed"
          : "never";

        // 计算有效周期
        let interval = 5;
        let intervalLabel = "5 分钟（系统默认）";
        if (ext?.inspection_interval) {
          interval = ext.inspection_interval;
          intervalLabel = `${interval} 分钟（自定义）`;
        } else if (ext?.tier) {
          const tierDefault = ext.tier === "core" ? 5 : ext.tier === "aggregation" ? 10 : 15;
          interval = tierDefault;
          intervalLabel = `${tierDefault} 分钟（${TIER_LABELS[ext.tier] || ext.tier}默认）`;
        }

        return {
          hostId: host.id,
          hostName: host.label || host.hostname || host.address || "未命名",
          hostAddress: host.address || "",
          hostPlatform: host.platform || "ssh",
          catalogId: ext?.catalog_id || "",
          catalogName: catalog?.name || ext?.catalog_id || "未配置",
          tier: ext?.tier || "",
          enabled: ext?.inspection_enabled || false,
          interval,
          intervalLabel,
          lastStatus,
          lastTime: lastResult?.timestamp || null,
          lastResult,
        };
      });
  }, [hosts, extensions, catalogs, latestResults]);

  // 筛选
  const filteredRows = useMemo(() => {
    return deviceRows.filter((row) => {
      if (searchText) {
        const s = searchText.toLowerCase();
        if (
          !row.hostName.toLowerCase().includes(s) &&
          !row.hostAddress.toLowerCase().includes(s) &&
          !row.catalogName.toLowerCase().includes(s)
        ) {
          return false;
        }
      }
      if (filterCatalog !== "all" && row.catalogId !== filterCatalog) return false;
      if (filterTier !== "all" && row.tier !== filterTier) return false;
      if (filterStatus === "enabled" && !row.enabled) return false;
      if (filterStatus === "disabled" && row.enabled) return false;
      return true;
    });
  }, [deviceRows, searchText, filterCatalog, filterTier, filterStatus]);

  const stats = useMemo(() => {
    const total = deviceRows.length;
    const enabled = deviceRows.filter((r) => r.enabled).length;
    const success = deviceRows.filter((r) => r.lastStatus === "success").length;
    const failed = deviceRows.filter((r) => r.lastStatus === "failed").length;
    return { total, enabled, success, failed };
  }, [deviceRows]);

  const handleScanNow = async (hostId: string, hostName: string) => {
    try {
      const host = hosts.find((h: any) => h.id === hostId);
      if (!host) {
        toast.error("未找到主机配置");
        return;
      }

      // 构造连接配置
      const hostConfig: any = {
        id: host.id,
        label: host.label,
        hostname: host.hostname,
        port: host.port || 22,
        username: host.username,
      };

      // 密码
      if (host.password) {
        hostConfig.password = host.password;
      }

      // 私钥
      if (host.identityFileId) {
        const key = keys.find((k: any) => k.id === host.identityFileId);
        if (key && key.privateKey) {
          hostConfig.privateKeyContent = key.privateKey;
          if (key.passphrase) {
            hostConfig.passphrase = key.passphrase;
          }
        }
      }

      const catalogId = extensions[hostId]?.catalog_id || "linux_server";

      toast.info(`正在对 ${hostName} 执行立即巡检...`);
      const result = await inspectionExecApi.runInspection(hostId, hostConfig, catalogId);

      if (result?.success) {
        toast.success(`巡检完成，耗时 ${(result.duration / 1000).toFixed(1)} 秒`);
        if (result.alerts && result.alerts.length > 0) {
          toast.warning(`触发 ${result.alerts.length} 条告警`);
        }
      } else {
        toast.error(`巡检失败: ${result?.error || "未知错误"}`);
      }

      setTimeout(() => loadData(), 1000);
    } catch (e: any) {
      toast.error("巡检触发失败: " + e.message);
    }
  };

  const openDetail = async (hostId: string) => {
    setDetailHostId(hostId);
    setDetailLoading(true);
    try {
      const results = await inspectionResultApi.getLatestByDevice(hostId, 20);
      setDetailResults(Array.isArray(results) ? results : []);
    } catch (e: any) {
      console.error("[InspectionCenter] 加载详情失败:", e);
      setDetailResults([]);
    } finally {
      setDetailLoading(false);
    }
  };

  // 打开配置弹窗
  const openConfig = (row: DeviceRow) => {
    setConfigHostId(row.hostId);
    setConfigForm({
      inspection_enabled: row.enabled,
      catalog_id: row.catalogId || "linux",
      tier: row.tier || "access",
      inspection_interval: extensions[row.hostId]?.inspection_interval?.toString() || "",
    });
    setConfigOpen(true);
  };

  // 保存配置
  const saveConfig = async () => {
    if (!configHostId) return;
    setConfigSaving(true);
    try {
      const data: any = {
        inspection_enabled: configForm.inspection_enabled,
        catalog_id: configForm.catalog_id,
        tier: configForm.tier || null,
        inspection_interval: configForm.inspection_interval
          ? parseInt(configForm.inspection_interval, 10)
          : null,
      };
      await inspectionDeviceApi.upsert(configHostId, data);
      toast.success("配置已保存");
      setConfigOpen(false);
      loadData();
    } catch (e: any) {
      toast.error("保存失败: " + e.message);
    } finally {
      setConfigSaving(false);
    }
  };

  const formatTime = (ts: number | null) => {
    if (!ts) return "-";
    const d = new Date(ts);
    return `${d.getMonth() + 1}/${d.getDate()} ${d.getHours().toString().padStart(2, "0")}:${d.getMinutes().toString().padStart(2, "0")}:${d.getSeconds().toString().padStart(2, "0")}`;
  };

  const formatDuration = (ms: number | undefined) => {
    if (!ms) return "-";
    if (ms < 1000) return `${ms}ms`;
    return `${(ms / 1000).toFixed(1)}s`;
  };

  const getStatusBadge = (status: "success" | "failed" | "never") => {
    switch (status) {
      case "success":
        return (
          <Badge variant="outline" className="text-emerald-500 bg-emerald-500/10 border-emerald-500/30">
            <CheckCircle2 size={11} className="mr-1" /> 成功
          </Badge>
        );
      case "failed":
        return (
          <Badge variant="outline" className="text-red-500 bg-red-500/10 border-red-500/30">
            <XCircle size={11} className="mr-1" /> 失败
          </Badge>
        );
      default:
        return (
          <Badge variant="outline" className="text-muted-foreground">
            <Clock size={11} className="mr-1" /> 未执行
          </Badge>
        );
    }
  };

  return (
    <div className="h-full flex flex-col">
      {/* 顶部标题栏 */}
      <div className="flex items-center justify-between px-6 py-4 border-b border-border/60">
        <div className="flex items-center gap-3">
          <div className="w-9 h-9 rounded-lg bg-primary/10 flex items-center justify-center">
            <Activity size={18} className="text-primary" />
          </div>
          <div>
            <h2 className="text-lg font-semibold">巡检中心</h2>
            <p className="text-sm text-muted-foreground">
              所有主机巡检状态概览与执行记录
            </p>
          </div>
        </div>
        <Button variant="outline" onClick={loadData} disabled={refreshing}>
          <RefreshCw size={14} className={`mr-2 ${refreshing ? "animate-spin" : ""}`} />
          刷新
        </Button>
      </div>

      {/* 统计卡片 */}
      <div className="grid grid-cols-4 gap-3 px-6 py-4">
        <div className="p-4 rounded-lg border border-border/60 bg-card">
          <div className="flex items-center gap-2 text-sm text-muted-foreground mb-1">
            <Server size={14} />
            设备总数
          </div>
          <div className="text-2xl font-semibold">{stats.total}</div>
          <div className="text-xs text-muted-foreground mt-1">
            已启用巡检: {stats.enabled}
          </div>
        </div>
        <div className="p-4 rounded-lg border border-border/60 bg-card">
          <div className="flex items-center gap-2 text-sm text-muted-foreground mb-1">
            <CheckCircle2 size={14} className="text-emerald-500" />
            巡检成功
          </div>
          <div className="text-2xl font-semibold text-emerald-500">{stats.success}</div>
          <div className="text-xs text-muted-foreground mt-1">
            上次巡检结果
          </div>
        </div>
        <div className="p-4 rounded-lg border border-border/60 bg-card">
          <div className="flex items-center gap-2 text-sm text-muted-foreground mb-1">
            <XCircle size={14} className="text-red-500" />
            巡检失败
          </div>
          <div className="text-2xl font-semibold text-red-500">{stats.failed}</div>
          <div className="text-xs text-muted-foreground mt-1">
            需关注设备
          </div>
        </div>
        <div className="p-4 rounded-lg border border-border/60 bg-card">
          <div className="flex items-center gap-2 text-sm text-muted-foreground mb-1">
            <AlertTriangle size={14} className="text-orange-500" />
            活跃告警
          </div>
          <div className="text-2xl font-semibold text-orange-500">
            {(alertStats?.critical || 0) + (alertStats?.warning || 0) + (alertStats?.info || 0)}
          </div>
          <div className="text-xs text-muted-foreground mt-1">
            严重 {alertStats?.critical || 0} / 警告 {alertStats?.warning || 0}
          </div>
        </div>
      </div>

      {/* 筛选栏 */}
      <div className="flex items-center gap-3 px-6 py-3 border-b border-border/40 bg-muted/20">
        <div className="relative flex-1 max-w-xs">
          <Search size={14} className="absolute left-2.5 top-1/2 -translate-y-1/2 text-muted-foreground" />
          <Input
            placeholder="搜索主机名、IP、设备类型..."
            value={searchText}
            onChange={(e) => setSearchText(e.target.value)}
            className="pl-8 h-8 text-xs"
          />
        </div>
        <div className="flex items-center gap-2">
          <span className="text-xs text-muted-foreground">类型：</span>
          <Select value={filterCatalog} onValueChange={setFilterCatalog}>
            <SelectTrigger className="w-32 h-8 text-xs">
              <SelectValue placeholder="全部" />
            </SelectTrigger>
            <SelectContent>
              <SelectItem value="all">全部类型</SelectItem>
              {catalogs.map((c) => (
                <SelectItem key={c.id} value={c.id}>
                  {c.name}
                </SelectItem>
              ))}
            </SelectContent>
          </Select>
        </div>
        <div className="flex items-center gap-2">
          <span className="text-xs text-muted-foreground">分级：</span>
          <Select value={filterTier} onValueChange={setFilterTier}>
            <SelectTrigger className="w-24 h-8 text-xs">
              <SelectValue placeholder="全部" />
            </SelectTrigger>
            <SelectContent>
              <SelectItem value="all">全部分级</SelectItem>
              <SelectItem value="core">核心级</SelectItem>
              <SelectItem value="aggregation">重要级</SelectItem>
              <SelectItem value="access">一般</SelectItem>
            </SelectContent>
          </Select>
        </div>
        <div className="flex items-center gap-2">
          <span className="text-xs text-muted-foreground">状态：</span>
          <Select value={filterStatus} onValueChange={setFilterStatus}>
            <SelectTrigger className="w-24 h-8 text-xs">
              <SelectValue placeholder="全部" />
            </SelectTrigger>
            <SelectContent>
              <SelectItem value="all">全部</SelectItem>
              <SelectItem value="enabled">已启用</SelectItem>
              <SelectItem value="disabled">已停用</SelectItem>
            </SelectContent>
          </Select>
        </div>
      </div>

      {/* 设备列表 */}
      <div className="flex-1 overflow-auto px-6 py-4">
        {loading ? (
          <div className="text-center text-muted-foreground py-12">加载中...</div>
        ) : filteredRows.length === 0 ? (
          <div className="text-center text-muted-foreground py-16">
            <Server size={40} className="mx-auto mb-3 opacity-40" />
            <p>暂无符合条件的设备</p>
            <p className="text-sm mt-1">请在主机管理中添加设备并配置巡检</p>
          </div>
        ) : (
          <div className="space-y-2">
            {/* 表头 */}
            <div className="grid grid-cols-12 gap-3 px-4 py-2 text-xs text-muted-foreground font-medium">
              <div className="col-span-3">设备</div>
              <div className="col-span-2">设备类型</div>
              <div className="col-span-1">分级</div>
              <div className="col-span-2">巡检周期</div>
              <div className="col-span-1">状态</div>
              <div className="col-span-1">上次时间</div>
              <div className="col-span-2 text-right">操作</div>
            </div>
            {filteredRows.map((row) => (
              <div
                key={row.hostId}
                className="grid grid-cols-12 gap-3 items-center p-3 border border-border/60 rounded-lg hover:bg-accent/30 transition-colors cursor-pointer"
                onClick={() => openDetail(row.hostId)}
              >
                <div className="col-span-3 min-w-0">
                  <div className="flex items-center gap-2">
                    <div className="w-7 h-7 rounded bg-primary/10 flex items-center justify-center shrink-0">
                      <Server size={13} className="text-primary" />
                    </div>
                    <div className="min-w-0">
                      <div className="font-medium text-sm truncate">{row.hostName}</div>
                      <div className="text-xs text-muted-foreground truncate">{row.hostAddress}</div>
                    </div>
                  </div>
                </div>
                <div className="col-span-2 text-sm">{row.catalogName}</div>
                <div className="col-span-1">
                  {row.tier ? (
                    <Badge variant="secondary" className="text-xs">
                      {TIER_LABELS[row.tier] || row.tier}
                    </Badge>
                  ) : (
                    <span className="text-xs text-muted-foreground">-</span>
                  )}
                </div>
                <div className="col-span-2 text-xs text-muted-foreground">
                  {row.enabled ? row.intervalLabel : "未启用"}
                </div>
                <div className="col-span-1">{getStatusBadge(row.lastStatus)}</div>
                <div className="col-span-1 text-xs text-muted-foreground">
                  {formatTime(row.lastTime)}
                </div>
                <div className="col-span-2 flex items-center justify-end gap-1" onClick={(e) => e.stopPropagation()}>
                  <Button
                    variant="ghost"
                    size="icon"
                    className="h-7 w-7"
                    onClick={(e) => {
                      e.stopPropagation();
                      openConfig(row);
                    }}
                    title="巡检配置"
                  >
                    <Settings size={13} />
                  </Button>
                  <Button
                    variant="ghost"
                    size="icon"
                    className="h-7 w-7"
                    onClick={(e) => {
                      e.stopPropagation();
                      openDetail(row.hostId);
                    }}
                    title="巡检记录"
                  >
                    <ListIcon size={13} />
                  </Button>
                  <Button
                    variant="outline"
                    size="icon"
                    className="h-7 w-7"
                    disabled={!row.enabled}
                    onClick={(e) => {
                      e.stopPropagation();
                      handleScanNow(row.hostId, row.hostName);
                    }}
                    title="立即巡检"
                  >
                    <Play size={13} />
                  </Button>
                </div>
              </div>
            ))}
          </div>
        )}
      </div>

      {/* 巡检记录详情弹窗 */}
      <Dialog
        open={!!detailHostId}
        onOpenChange={(open) => !open && setDetailHostId(null)}
      >
        <DialogContent className="max-w-2xl max-h-[80vh]">
          <DialogHeader>
            <DialogTitle className="flex items-center gap-2">
              <Activity size={16} />
              巡检记录
              <span className="text-sm font-normal text-muted-foreground">
                ({deviceRows.find((r) => r.hostId === detailHostId)?.hostName || ""})
              </span>
            </DialogTitle>
          </DialogHeader>

          {detailLoading ? (
            <div className="text-center text-muted-foreground py-12">加载中...</div>
          ) : detailResults.length === 0 ? (
            <div className="text-center text-muted-foreground py-12">
              <Clock size={32} className="mx-auto mb-2 opacity-40" />
              <p>暂无巡检记录</p>
            </div>
          ) : (
            <div className="space-y-3 overflow-y-auto pr-2">
              {detailResults.map((result, idx) => (
                <div
                  key={idx}
                  className={`p-3 rounded-lg border ${
                    result.status === "success"
                      ? "border-emerald-500/30 bg-emerald-500/5"
                      : "border-red-500/30 bg-red-500/5"
                  }`}
                >
                  <div className="flex items-center justify-between mb-2">
                    <div className="flex items-center gap-2">
                      {result.status === "success" ? (
                        <CheckCircle2 size={14} className="text-emerald-500" />
                      ) : (
                        <XCircle size={14} className="text-red-500" />
                      )}
                      <span className="text-sm font-medium">
                        {result.status === "success" ? "巡检成功" : "巡检失败"}
                      </span>
                    </div>
                    <div className="flex items-center gap-3 text-xs text-muted-foreground">
                      <span>{formatTime(result.timestamp)}</span>
                      <span>耗时 {formatDuration(result.duration_ms)}</span>
                    </div>
                  </div>

                  {result.metrics && Object.keys(result.metrics).length > 0 && (
                    <>
                      {/* 格式化指标（精简展示） */}
                      <div className="grid grid-cols-2 gap-2 text-xs mb-2">
                        {Object.entries(result.metrics)
                          .filter(([key]) => !["load_avg", "process_count", "uptime", "load_1m", "load_5m", "load_15m"].includes(key))
                          .map(([key, val]) => (
                            <div
                              key={key}
                              className="flex items-center justify-between px-2 py-1 bg-background/50 rounded"
                            >
                              <span className="text-muted-foreground">{formatMetricLabel(key)}</span>
                              <span className="font-mono">{formatMetricValue(key, val)}</span>
                            </div>
                          ))}
                      </div>

                      {/* 原始数据（可折叠） */}
                      <Collapsible>
                        <CollapsibleTrigger className="flex items-center gap-1 text-xs text-muted-foreground hover:text-foreground transition-colors group">
                          <ChevronRight size={12} className="data-[state=open]:hidden" />
                          <ChevronDown size={12} className="hidden data-[state=open]:block" />
                          <span>查看完整数据</span>
                        </CollapsibleTrigger>
                        <CollapsibleContent className="mt-2">
                          <pre className="text-xs bg-background/80 p-2 rounded border border-border/50 overflow-auto max-h-40 font-mono">
                            {JSON.stringify(result.metrics, null, 2)}
                          </pre>
                        </CollapsibleContent>
                      </Collapsible>
                    </>
                  )}

                  {result.error_message && (
                    <div className="mt-2 p-2 bg-red-500/10 rounded text-xs text-red-500 font-mono">
                      {result.error_message}
                    </div>
                  )}
                </div>
              ))}
            </div>
          )}
        </DialogContent>
      </Dialog>

      {/* 配置弹窗 */}
      <Dialog open={configOpen} onOpenChange={setConfigOpen}>
        <DialogContent className="max-w-md">
          <DialogHeader>
            <DialogTitle className="flex items-center gap-2">
              <Settings size={16} />
              巡检配置
              <span className="text-sm font-normal text-muted-foreground">
                ({deviceRows.find((r) => r.hostId === configHostId)?.hostName || ""})
              </span>
            </DialogTitle>
          </DialogHeader>

          <div className="space-y-4 py-2">
            {/* 启用开关 */}
            <div className="flex items-center justify-between">
              <div>
                <Label className="text-sm font-medium">启用自动巡检</Label>
                <p className="text-xs text-muted-foreground mt-0.5">
                  开启后将按周期自动执行巡检
                </p>
              </div>
              <Switch
                checked={configForm.inspection_enabled}
                onCheckedChange={(v) =>
                  setConfigForm({ ...configForm, inspection_enabled: v })
                }
              />
            </div>

            {/* 设备类型 */}
            <div className="space-y-2">
              <Label>设备类型</Label>
              <Select
                value={configForm.catalog_id}
                onValueChange={(v) => setConfigForm({ ...configForm, catalog_id: v })}
              >
                <SelectTrigger>
                  <SelectValue />
                </SelectTrigger>
                <SelectContent>
                  {catalogs.map((c) => (
                    <SelectItem key={c.id} value={c.id}>
                      {c.name}
                    </SelectItem>
                  ))}
                </SelectContent>
              </Select>
            </div>

            {/* 设备分级 */}
            <div className="space-y-2">
              <Label>设备分级</Label>
              <Select
                value={configForm.tier || ""}
                onValueChange={(v) => setConfigForm({ ...configForm, tier: v })}
              >
                <SelectTrigger>
                  <SelectValue placeholder="请选择分级" />
                </SelectTrigger>
                <SelectContent>
                  <SelectItem value="core">核心级（默认 5 分钟）</SelectItem>
                  <SelectItem value="aggregation">重要级（默认 10 分钟）</SelectItem>
                  <SelectItem value="access">一般（默认 15 分钟）</SelectItem>
                </SelectContent>
              </Select>
            </div>

            {/* 巡检周期 */}
            <div className="space-y-2">
              <Label>巡检周期（分钟）</Label>
              <Input
                type="number"
                min={1}
                placeholder="留空则使用分级默认周期"
                value={configForm.inspection_interval}
                onChange={(e) =>
                  setConfigForm({ ...configForm, inspection_interval: e.target.value })
                }
              />
              <p className="text-xs text-muted-foreground">
                优先级：自定义周期 → 分级默认 → 系统默认（5 分钟）
              </p>
              <div className="p-2 bg-muted/30 rounded text-xs text-muted-foreground">
                <span className="font-medium text-foreground">有效周期：</span>
                {configForm.inspection_interval
                  ? `${configForm.inspection_interval} 分钟（自定义）`
                  : configForm.tier
                  ? `${configForm.tier === "core" ? 5 : configForm.tier === "aggregation" ? 10 : 15} 分钟（${TIER_LABELS[configForm.tier] || configForm.tier}默认）`
                  : "5 分钟（系统默认）"}
              </div>
            </div>
          </div>

          <DialogFooter>
            <Button variant="outline" onClick={() => setConfigOpen(false)}>
              取消
            </Button>
            <Button onClick={saveConfig} disabled={configSaving}>
              {configSaving ? "保存中..." : "保存配置"}
            </Button>
          </DialogFooter>
        </DialogContent>
      </Dialog>
    </div>
  );
}

// ---------- 工具函数 ----------

function formatMetricLabel(key: string): string {
  const map: Record<string, string> = {
    cpu_usage: "CPU 使用率",
    memory_usage: "内存使用率",
    disk_usage: "磁盘使用率",
    load_1m: "负载 (1分钟)",
    load_5m: "负载 (5分钟)",
    load_15m: "负载 (15分钟)",
    online: "在线状态",
    temperature: "设备温度",
    power_failure_count: "电源故障数",
    fan_failure_count: "风扇故障数",
    port_down_count: "端口 Down 数",
    port_total_count: "端口总数",
    port_status: "端口状态",
    power_status: "电源状态",
    fan_status: "风扇状态",
  };
  return map[key] || key;
}

function formatMetricValue(key: string, val: any): string {
  if (val === null || val === undefined) return "-";
  if (key === "online") return val ? "在线" : "离线";
  if (key === "cpu_usage" || key === "memory_usage") {
    return `${val}%`;
  }
  if (key === "temperature") return `${val}°C`;
  // disk_usage 是数组 { filesystem, usage_percent, mount }
  if (key === "disk_usage") {
    if (Array.isArray(val) && val.length > 0) {
      return val.map((d: any) => `${d.mount || d.filesystem}: ${d.usage_percent}%`).join(" | ");
    }
    return "-";
  }
  // 网络设备: port_status { up_count, down_count, ports: [{name, phy}] }
  if (key === "port_status") {
    if (typeof val !== "object") return String(val);
    const up = val.up_count ?? 0;
    const down = val.down_count ?? 0;
    const total = up + down;
    // 简写端口名: GigabitEthernet0/0/1 → GE0/0/1, TenGigE → XGE 等
    const shortName = (n: string) => n
      .replace(/GigabitEthernet/g, "GE")
      .replace(/TenGigabitEthernet/g, "XGE")
      .replace(/TwentyFiveGigE/g, "25GE")
      .replace(/FortyGigE/g, "40GE")
      .replace(/HundredGigE/g, "100GE")
      .replace(/Ethernet/g, "Eth");
    if (Array.isArray(val.ports) && val.ports.length > 0) {
      const upList = val.ports.filter((p: any) => p.phy === "up").map((p: any) => shortName(p.name));
      const downList = val.ports.filter((p: any) => p.phy === "down").map((p: any) => shortName(p.name));
      const parts: string[] = [`${up}/${total} UP`];
      if (upList.length > 0) parts.push(`↑${upList.join(",")}`);
      if (downList.length > 0 && downList.length <= 12) parts.push(`↓${downList.join(",")}`);
      else if (downList.length > 12) parts.push(`↓${downList.length}个down`);
      return parts.join(" ");
    }
    return `${up}/${total} UP`;
  }
  // 网络设备: power_status / fan_status { normal_count, abnormal_count }
  if (key === "power_status" || key === "fan_status") {
    if (typeof val !== "object") return String(val);
    const normal = val.normal_count ?? 0;
    const abnormal = val.abnormal_count ?? 0;
    if (abnormal > 0) return `⚠ ${abnormal}异常 / ${normal}正常`;
    return `${normal}个正常`;
  }
  return String(val);
}

export default InspectionCenterPage;