import {
  AccessTimeRounded,
  ChevronRight,
  NetworkCheckRounded,
  WifiOff as SignalError,
  SignalWifi3Bar as SignalGood,
  SignalWifi2Bar as SignalMedium,
  SignalWifi0Bar as SignalNone,
  SignalWifi4Bar as SignalStrong,
  SignalWifi1Bar as SignalWeak,
  SortByAlphaRounded,
  SortRounded,
} from "@mui/icons-material";
import {
  Box,
  Button,
  Chip,
  FormControl,
  IconButton,
  InputLabel,
  MenuItem,
  Select,
  SelectChangeEvent,
  Tooltip,
  Typography,
  alpha,
  useTheme,
} from "@mui/material";
import { useLockFn } from "ahooks";
import React from "react";
import { useCallback, useEffect, useMemo, useRef, useState } from "react";
import { useTranslation } from "react-i18next";
import { useNavigate } from "react-router";
import { delayGroup, healthcheckProxyProvider } from "tauri-plugin-mihomo-api";

import { EnhancedCard } from "@/components/home/enhanced-card";
import { useProfiles } from "@/hooks/use-profiles";
import { useProxySelection } from "@/hooks/use-proxy-selection";
import { useVerge } from "@/hooks/use-verge";
import { useAppData } from "@/providers/app-data-context";
import delayManager from "@/services/delay";
import { debugLog } from "@/utils/debug";

// 本地存储的键名
const STORAGE_KEY_GROUP = "clash-verge-selected-proxy-group";
const STORAGE_KEY_PROXY = "clash-verge-selected-proxy";
const STORAGE_KEY_SORT_TYPE = "clash-verge-proxy-sort-type";

const AUTO_CHECK_INITIAL_DELAY_MS = 1500;
const AUTO_CHECK_DEFAULT_INTERVAL_MINUTES = 5;

// 代理节点信息接口
interface ProxyOption {
  name: string;
}

// 排序类型: 默认 | 按延迟 | 按字母
type ProxySortType = 0 | 1 | 2;

function convertDelayColor(
  delayValue: number,
): "success" | "warning" | "error" | "primary" | "default" {
  const colorStr = delayManager.formatDelayColor(delayValue);
  if (!colorStr) return "default";

  const mainColor = colorStr.split(".")[0];

  switch (mainColor) {
    case "success":
      return "success";
    case "warning":
      return "warning";
    case "error":
      return "error";
    case "primary":
      return "primary";
    default:
      return "default";
  }
}

function getSignalIcon(delay: number): {
  icon: React.ReactElement;
  text: string;
  color: string;
} {
  if (delay < 0)
    return { icon: <SignalNone />, text: "未测试", color: "text.secondary" };
  if (delay >= 10000)
    return { icon: <SignalError />, text: "超时", color: "error.main" };
  if (delay >= 500)
    return { icon: <SignalWeak />, text: "延迟较高", color: "error.main" };
  if (delay >= 300)
    return { icon: <SignalMedium />, text: "延迟中等", color: "warning.main" };
  if (delay >= 200)
    return { icon: <SignalGood />, text: "延迟良好", color: "info.main" };
  return { icon: <SignalStrong />, text: "延迟极佳", color: "success.main" };
}

export const CurrentProxyCard = () => {
  const { t } = useTranslation();
  const navigate = useNavigate();
  const theme = useTheme();
  const { proxies, clashConfig, refreshProxy, rules } = useAppData();
  const { verge } = useVerge();
  const { current: currentProfile } = useProfiles();
  const autoDelayEnabled = verge?.enable_auto_delay_detection ?? false;
  const defaultLatencyTimeout = verge?.default_latency_timeout;
  const autoDelayIntervalMs = useMemo(() => {
    const rawInterval = verge?.auto_delay_detection_interval_minutes;
    const intervalMinutes =
      typeof rawInterval === "number" && rawInterval > 0
        ? rawInterval
        : AUTO_CHECK_DEFAULT_INTERVAL_MINUTES;
    return Math.max(1, Math.round(intervalMinutes)) * 60 * 1000;
  }, [verge?.auto_delay_detection_interval_minutes]);
  const currentProfileId = currentProfile?.uid || null;

  const getProfileStorageKey = useCallback(
    (baseKey: string) =>
      currentProfileId ? `${baseKey}:${currentProfileId}` : baseKey,
    [currentProfileId],
  );

  const readProfileScopedItem = useCallback(
    (baseKey: string) => {
      if (typeof window === "undefined") return null;
      const profileKey = getProfileStorageKey(baseKey);
      const profileValue = localStorage.getItem(profileKey);
      if (profileValue != null) {
        return profileValue;
      }

      if (profileKey !== baseKey) {
        const legacyValue = localStorage.getItem(baseKey);
        if (legacyValue != null) {
          localStorage.removeItem(baseKey);
          localStorage.setItem(profileKey, legacyValue);
          return legacyValue;
        }
      }

      return null;
    },
    [getProfileStorageKey],
  );

  const writeProfileScopedItem = useCallback(
    (baseKey: string, value: string) => {
      if (typeof window === "undefined") return;
      const profileKey = getProfileStorageKey(baseKey);
      localStorage.setItem(profileKey, value);
      if (profileKey !== baseKey) {
        localStorage.removeItem(baseKey);
      }
    },
    [getProfileStorageKey],
  );

  // 统一代理选择器
  const { handleSelectChange } = useProxySelection({
    onSuccess: () => {
      refreshProxy();
    },
    onError: (error) => {
      console.error("代理切换失败", error);
      refreshProxy();
    },
  });

  // 判断模式
  const mode = clashConfig?.mode?.toLowerCase() || "rule";
  const isGlobalMode = mode === "global";
  const isDirectMode = mode === "direct";

  // Sorting type state
  const [sortType, setSortType] = useState<ProxySortType>(() => {
    const savedSortType = localStorage.getItem(STORAGE_KEY_SORT_TYPE);
    return savedSortType ? (Number(savedSortType) as ProxySortType) : 0;
  });
  const [delaySortRefresh, setDelaySortRefresh] = useState(0);

  const normalizePolicyName = useCallback(
    (value?: string | null) => (typeof value === "string" ? value.trim() : ""),
    [],
  );

  const matchPolicyName = useMemo(() => {
    if (!Array.isArray(rules)) return "";
    for (let index = rules.length - 1; index >= 0; index -= 1) {
      const rule = rules[index];
      if (!rule) continue;

      if (
        typeof rule?.type === "string" &&
        rule.type.toUpperCase() === "MATCH"
      ) {
        const policy = normalizePolicyName(rule.proxy);
        if (policy) {
          return policy;
        }
      }
    }
    return "";
  }, [rules, normalizePolicyName]);

  type ProxyGroupOption = {
    name: string;
    now: string;
    all: string[];
    type?: string;
  };

  type ProxyState = {
    proxyData: {
      groups: ProxyGroupOption[];
      records: Record<string, any>;
    };
    selection: {
      group: string;
      proxy: string;
    };
    displayProxy: any;
  };

  const [state, setState] = useState<ProxyState>({
    proxyData: {
      groups: [],
      records: {},
    },
    selection: {
      group: "",
      proxy: "",
    },
    displayProxy: null,
  });

  const autoCheckInProgressRef = useRef(false);
  const latestTimeoutRef = useRef<number>(
    verge?.default_latency_timeout || 10000,
  );
  const latestProxyRecordRef = useRef<any | null>(null);

  useEffect(() => {
    latestTimeoutRef.current = verge?.default_latency_timeout || 10000;
  }, [verge?.default_latency_timeout]);

  useEffect(() => {
    if (!state.selection.proxy) {
      latestProxyRecordRef.current = null;
      return;
    }
    latestProxyRecordRef.current =
      state.proxyData.records?.[state.selection.proxy] || null;
  }, [state.selection.proxy, state.proxyData.records]);

  // 初始化选择的组
  useEffect(() => {
    if (!proxies) return;

    const getPrimaryGroupName = () => {
      if (!proxies?.groups?.length) return "";

      const primaryKeywords = [
        "auto",
        "select",
        "proxy",
        "节点选择",
        "自动选择",
      ];
      const primaryGroup =
        proxies.groups.find((group: { name: string }) =>
          primaryKeywords.some((keyword) =>
            group.name.toLowerCase().includes(keyword.toLowerCase()),
          ),
        ) ||
        proxies.groups.filter((g: { name: string }) => g.name !== "GLOBAL")[0];

      return primaryGroup?.name || "";
    };

    const primaryGroupName = getPrimaryGroupName();

    // 根据模式确定初始组
    if (isGlobalMode) {
      // eslint-disable-next-line @eslint-react/hooks-extra/no-direct-set-state-in-use-effect
      setState((prev) => ({
        ...prev,
        selection: {
          ...prev.selection,
          group: "GLOBAL",
        },
      }));
    } else if (isDirectMode) {
      // eslint-disable-next-line @eslint-react/hooks-extra/no-direct-set-state-in-use-effect
      setState((prev) => ({
        ...prev,
        selection: {
          ...prev.selection,
          group: "DIRECT",
        },
      }));
    } else {
      const savedGroup = readProfileScopedItem(STORAGE_KEY_GROUP);
      // eslint-disable-next-line @eslint-react/hooks-extra/no-direct-set-state-in-use-effect
      setState((prev) => ({
        ...prev,
        selection: {
          ...prev.selection,
          group: savedGroup || primaryGroupName || "",
        },
      }));
    }
  }, [isGlobalMode, isDirectMode, proxies, readProfileScopedItem]);

  // 监听代理数据变化，更新状态
  useEffect(() => {
    if (!proxies) return;

    // eslint-disable-next-line @eslint-react/hooks-extra/no-direct-set-state-in-use-effect
    setState((prev) => {
      const groupsMap = new Map<string, ProxyGroupOption>();

      const registerGroup = (group: any, fallbackName?: string) => {
        if (!group && !fallbackName) return;

        const rawName =
          typeof group?.name === "string" && group.name.length > 0
            ? group.name
            : fallbackName;
        const name = normalizePolicyName(rawName);
        if (!name || groupsMap.has(name)) return;

        const rawAll = (
          Array.isArray(group?.all)
            ? (group.all as Array<string | { name?: string }>)
            : []
        ) as Array<string | { name?: string }>;
        const allNames = rawAll
          .map((item) =>
            typeof item === "string"
              ? normalizePolicyName(item)
              : normalizePolicyName(item?.name),
          )
          .filter((value): value is string => value.length > 0);

        const uniqueAll = Array.from(new Set(allNames));
        if (uniqueAll.length === 0) return;

        groupsMap.set(name, {
          name,
          now: normalizePolicyName(group?.now),
          all: uniqueAll,
          type: group?.type,
        });
      };

      if (matchPolicyName) {
        const matchGroup =
          proxies.groups?.find(
            (g: { name: string }) => g.name === matchPolicyName,
          ) ||
          (proxies.global?.name === matchPolicyName ? proxies.global : null) ||
          proxies.records?.[matchPolicyName];
        registerGroup(matchGroup, matchPolicyName);
      }

      (proxies.groups || [])
        .filter((g: { type?: string }) => g?.type === "Selector")
        .forEach((selectorGroup: any) => registerGroup(selectorGroup));

      const filteredGroups = Array.from(groupsMap.values());

      let newProxy = "";
      let newDisplayProxy = null;
      let newGroup = prev.selection.group;

      if (isDirectMode) {
        newGroup = "DIRECT";
        newProxy = "DIRECT";
        newDisplayProxy = proxies.records?.DIRECT || { name: "DIRECT" };
      } else if (isGlobalMode && proxies.global) {
        newGroup = "GLOBAL";
        newProxy = proxies.global.now || "";
        newDisplayProxy = proxies.records?.[newProxy] || null;
      } else {
        const currentGroup = filteredGroups.find(
          (g: { name: string }) => g.name === prev.selection.group,
        );

        if (!currentGroup && filteredGroups.length > 0) {
          const firstGroup = filteredGroups[0];
          if (firstGroup) {
            newGroup = firstGroup.name;
            newProxy = firstGroup.now || firstGroup.all[0] || "";
            newDisplayProxy = proxies.records?.[newProxy] || null;

            if (!isGlobalMode && !isDirectMode) {
              writeProfileScopedItem(STORAGE_KEY_GROUP, newGroup);
              if (newProxy) {
                writeProfileScopedItem(STORAGE_KEY_PROXY, newProxy);
              }
            }
          }
        } else if (currentGroup) {
          newProxy = currentGroup.now || currentGroup.all[0] || "";
          newDisplayProxy = proxies.records?.[newProxy] || null;
        }
      }

      return {
        proxyData: {
          groups: filteredGroups,
          records: proxies.records || {},
        },
        selection: {
          group: newGroup,
          proxy: newProxy,
        },
        displayProxy: newDisplayProxy,
      };
    });
  }, [
    proxies,
    isGlobalMode,
    isDirectMode,
    writeProfileScopedItem,
    normalizePolicyName,
    matchPolicyName,
  ]);

  // 使用防抖包装状态更新
  const timeoutRef = React.useRef<ReturnType<typeof setTimeout> | null>(null);

  const debouncedSetState = useCallback(
    (updateFn: (prev: ProxyState) => ProxyState) => {
      if (timeoutRef.current) {
        clearTimeout(timeoutRef.current);
      }
      timeoutRef.current = setTimeout(() => {
        setState(updateFn);
      }, 300);
    },
    [setState],
  );

  // 处理代理组变更
  const handleGroupChange = useCallback(
    (event: SelectChangeEvent<string>) => {
      if (isGlobalMode || isDirectMode) return;

      const newGroup = event.target.value;

      writeProfileScopedItem(STORAGE_KEY_GROUP, newGroup);

      setState((prev) => {
        const group = prev.proxyData.groups.find(
          (g: { name: string }) => g.name === newGroup,
        );
        if (group) {
          return {
            ...prev,
            selection: {
              group: newGroup,
              proxy: group.now,
            },
            displayProxy: prev.proxyData.records[group.now] || null,
          };
        }
        return {
          ...prev,
          selection: {
            ...prev.selection,
            group: newGroup,
          },
        };
      });
    },
    [isGlobalMode, isDirectMode, writeProfileScopedItem],
  );

  // 处理代理节点变更
  const handleProxyChange = useCallback(
    (event: SelectChangeEvent<string>) => {
      if (isDirectMode) return;

      const newProxy = event.target.value;
      const currentGroup = state.selection.group;
      const previousProxy = state.selection.proxy;

      debouncedSetState((prev: ProxyState) => ({
        ...prev,
        selection: {
          ...prev.selection,
          proxy: newProxy,
        },
        displayProxy: prev.proxyData.records[newProxy] || null,
      }));

      if (!isGlobalMode && !isDirectMode) {
        writeProfileScopedItem(STORAGE_KEY_PROXY, newProxy);
      }

      const skipConfigSave = isGlobalMode || isDirectMode;
      handleSelectChange(currentGroup, previousProxy, skipConfigSave)(event);
    },
    [
      isDirectMode,
      isGlobalMode,
      state.selection,
      debouncedSetState,
      handleSelectChange,
      writeProfileScopedItem,
    ],
  );

  // 导航到代理页面
  const goToProxies = useCallback(() => {
    navigate("/proxies");
  }, [navigate]);

  // 获取要显示的代理节点
  const currentProxy = useMemo(() => {
    return state.displayProxy;
  }, [state.displayProxy]);

  // 获取当前节点的延迟（增加非空校验）
  const currentDelay =
    currentProxy && state.selection.group
      ? delayManager.getDelayFix(currentProxy, state.selection.group)
      : -1;

  // 信号图标（增加非空校验）
  const signalInfo =
    currentProxy && state.selection.group
      ? getSignalIcon(currentDelay)
      : { icon: <SignalNone />, text: "未初始化", color: "text.secondary" };

  const checkCurrentProxyDelay = useCallback(async () => {
    if (autoCheckInProgressRef.current) return;
    if (isDirectMode) return;

    const groupName = state.selection.group;
    const proxyName = state.selection.proxy;

    if (!groupName || !proxyName) return;

    const proxyRecord = latestProxyRecordRef.current;
    if (!proxyRecord) {
      debugLog(
        `[CurrentProxyCard] 自动延迟检测跳过，组: ${groupName}, 节点: ${proxyName} 未找到`,
      );
      return;
    }

    autoCheckInProgressRef.current = true;

    const timeout = latestTimeoutRef.current || 10000;

    try {
      debugLog(
        `[CurrentProxyCard] 自动检测当前节点延迟，组: ${groupName}, 节点: ${proxyName}`,
      );
      if (proxyRecord.provider) {
        await healthcheckProxyProvider(proxyRecord.provider);
      } else {
        await delayManager.checkDelay(proxyName, groupName, timeout);
      }
    } catch (error) {
      console.error(
        `[CurrentProxyCard] 自动检测当前节点延迟失败，组: ${groupName}, 节点: ${proxyName}`,
        error,
      );
    } finally {
      autoCheckInProgressRef.current = false;
      refreshProxy();
      if (sortType === 1) {
        setDelaySortRefresh((prev) => prev + 1);
      }
    }
  }, [
    isDirectMode,
    refreshProxy,
    state.selection.group,
    state.selection.proxy,
    sortType,
    setDelaySortRefresh,
  ]);

  useEffect(() => {
    if (isDirectMode) return;
    if (!autoDelayEnabled) return;
    if (!state.selection.group || !state.selection.proxy) return;

    let disposed = false;
    let intervalTimer: ReturnType<typeof setTimeout> | null = null;
    let initialTimer: ReturnType<typeof setTimeout> | null = null;

    const runAndSchedule = async () => {
      if (disposed) return;
      await checkCurrentProxyDelay();
      if (disposed) return;
      intervalTimer = setTimeout(runAndSchedule, autoDelayIntervalMs);
    };

    initialTimer = setTimeout(async () => {
      await checkCurrentProxyDelay();
      if (disposed) return;
      intervalTimer = setTimeout(runAndSchedule, autoDelayIntervalMs);
    }, AUTO_CHECK_INITIAL_DELAY_MS);

    return () => {
      disposed = true;
      if (initialTimer) clearTimeout(initialTimer);
      if (intervalTimer) clearTimeout(intervalTimer);
    };
  }, [
    checkCurrentProxyDelay,
    autoDelayIntervalMs,
    isDirectMode,
    state.selection.group,
    state.selection.proxy,
    autoDelayEnabled,
  ]);

  // 自定义渲染选择框中的值
  const renderProxyValue = (selected: string) => {
    if (!selected || !state.proxyData.records[selected]) return selected;

    const delayValue = delayManager.getDelayFix(
      state.proxyData.records[selected],
      state.selection.group,
    );

    return (
      <Box sx={{ display: "flex", justifyContent: "space-between" }}>
        <Typography noWrap>{selected}</Typography>
        <Chip
          size="small"
          label={delayManager.formatDelay(delayValue)}
          color={convertDelayColor(delayValue)}
        />
      </Box>
    );
  };

  // 排序类型变更
  const handleSortTypeChange = useCallback(() => {
    const newSortType = ((sortType + 1) % 3) as ProxySortType;
    setSortType(newSortType);
    localStorage.setItem(STORAGE_KEY_SORT_TYPE, newSortType.toString());
  }, [sortType]);

  // 延迟测试
  const handleCheckDelay = useLockFn(async () => {
    const groupName = state.selection.group;
    if (!groupName || isDirectMode) return;

    debugLog(`[CurrentProxyCard] 开始测试所有延迟，组: ${groupName}`);

    const timeout = verge?.default_latency_timeout || 10000;

    // 获取当前组的所有代理
    const proxyNames: string[] = [];
    const providers: Set<string> = new Set();

    if (isGlobalMode && proxies?.global) {
      // 全局模式
      const allProxies = proxies.global.all
        .filter((p: any) => {
          const name = typeof p === "string" ? p : p.name;
          return name !== "DIRECT" && name !== "REJECT";
        })
        .map((p: any) => (typeof p === "string" ? p : p.name));

      allProxies.forEach((name: string) => {
        const proxy = state.proxyData.records[name];
        if (proxy?.provider) {
          providers.add(proxy.provider);
        } else {
          proxyNames.push(name);
        }
      });
    } else {
      // 规则模式
      const group = state.proxyData.groups.find((g) => g.name === groupName);
      if (group) {
        group.all.forEach((name: string) => {
          const proxy = state.proxyData.records[name];
          if (proxy?.provider) {
            providers.add(proxy.provider);
          } else {
            proxyNames.push(name);
          }
        });
      }
    }

    debugLog(
      `[CurrentProxyCard] 找到代理数量: ${proxyNames.length}, 提供者数量: ${providers.size}`,
    );

    // 测试提供者的节点
    if (providers.size > 0) {
      debugLog(`[CurrentProxyCard] 开始测试提供者节点`);
      await Promise.allSettled(
        [...providers].map((p) => healthcheckProxyProvider(p)),
      );
    }

    // 测试非提供者的节点
    if (proxyNames.length > 0) {
      const url = delayManager.getUrl(groupName);
      debugLog(`[CurrentProxyCard] 测试URL: ${url}, 超时: ${timeout}ms`);

      try {
        await Promise.race([
          delayManager.checkListDelay(proxyNames, groupName, timeout),
          delayGroup(groupName, url, timeout),
        ]);
        debugLog(`[CurrentProxyCard] 延迟测试完成，组: ${groupName}`);
      } catch (error) {
        console.error(
          `[CurrentProxyCard] 延迟测试出错，组: ${groupName}`,
          error,
        );
      }
    }

    refreshProxy();
    if (sortType === 1) {
      setDelaySortRefresh((prev) => prev + 1);
    }
  });

  // 计算要显示的代理选项（增加非空校验）
  const proxyOptions = useMemo(() => {
    const sortWithLatency = (proxiesToSort: ProxyOption[]) => {
      if (!proxiesToSort || sortType === 0) return proxiesToSort;

      if (!state.proxyData.records || !state.selection.group) {
        return proxiesToSort;
      }

      const list = [...proxiesToSort];

      if (sortType === 1) {
        const refreshTick = delaySortRefresh;
        const effectiveTimeout =
          typeof defaultLatencyTimeout === "number" && defaultLatencyTimeout > 0
            ? defaultLatencyTimeout
            : 10000;

        const categorizeDelay = (delay: number): [number, number] => {
          if (!Number.isFinite(delay)) return [5, Number.MAX_SAFE_INTEGER];
          if (delay > 1e5) return [4, delay];
          if (delay === 0 || (delay >= effectiveTimeout && delay <= 1e5)) {
            return [3, delay || effectiveTimeout];
          }
          if (delay < 0) return [5, Number.MAX_SAFE_INTEGER];
          return [0, delay];
        };

        list.sort((a, b) => {
          const recordA = state.proxyData.records[a.name];
          const recordB = state.proxyData.records[b.name];

          const [ar, av] = recordA
            ? categorizeDelay(
                delayManager.getDelayFix(recordA, state.selection.group),
              )
            : [6, Number.MAX_SAFE_INTEGER];
          const [br, bv] = recordB
            ? categorizeDelay(
                delayManager.getDelayFix(recordB, state.selection.group),
              )
            : [6, Number.MAX_SAFE_INTEGER];

          if (ar !== br) return ar - br;
          if (av !== bv) return av - bv;
          return refreshTick >= 0 ? a.name.localeCompare(b.name) : 0;
        });
      } else {
        list.sort((a, b) => a.name.localeCompare(b.name));
      }

      return list;
    };

    if (isDirectMode) {
      return [{ name: "DIRECT" }];
    }
    if (isGlobalMode && proxies?.global) {
      const options = proxies.global.all
        .filter((p: any) => {
          const name = typeof p === "string" ? p : p.name;
          return name !== "DIRECT" && name !== "REJECT";
        })
        .map((p: any) => ({
          name: typeof p === "string" ? p : p.name,
        }));

      return sortWithLatency(options);
    }

    // 规则模式
    const group = state.selection.group
      ? state.proxyData.groups.find((g) => g.name === state.selection.group)
      : null;

    if (group) {
      const options = group.all.map((name) => ({ name }));
      return sortWithLatency(options);
    }

    return [];
  }, [
    isDirectMode,
    isGlobalMode,
    proxies,
    state.proxyData,
    state.selection.group,
    sortType,
    delaySortRefresh,
    defaultLatencyTimeout,
  ]);

  // 获取排序图标
  const getSortIcon = (): React.ReactElement => {
    switch (sortType) {
      case 1:
        return <AccessTimeRounded fontSize="small" />;
      case 2:
        return <SortByAlphaRounded fontSize="small" />;
      default:
        return <SortRounded fontSize="small" />;
    }
  };

  // 获取排序提示文本
  const getSortTooltip = (): string => {
    switch (sortType) {
      case 0:
        return t("proxies.page.tooltips.sortDefault");
      case 1:
        return t("proxies.page.tooltips.sortDelay");
      case 2:
        return t("proxies.page.tooltips.sortName");
      default:
        return "";
    }
  };

  return (
    <EnhancedCard
      title={t("home.components.currentProxy.title")}
      icon={
        <Tooltip
          title={
            currentProxy
              ? `${signalInfo.text}: ${delayManager.formatDelay(currentDelay)}`
              : "无代理节点"
          }
        >
          <Box sx={{ color: signalInfo.color }}>
            {currentProxy ? signalInfo.icon : <SignalNone color="disabled" />}
          </Box>
        </Tooltip>
      }
      iconColor={currentProxy ? "primary" : undefined}
      action={
        <Box sx={{ display: "flex", alignItems: "center", gap: 1 }}>
          <Tooltip
            title={t("home.components.currentProxy.actions.refreshDelay")}
          >
            <span>
              <IconButton
                size="small"
                color="inherit"
                onClick={handleCheckDelay}
                disabled={isDirectMode}
              >
                <NetworkCheckRounded />
              </IconButton>
            </span>
          </Tooltip>
          <Tooltip title={getSortTooltip()}>
            <IconButton
              size="small"
              color="inherit"
              onClick={handleSortTypeChange}
            >
              {getSortIcon()}
            </IconButton>
          </Tooltip>
          <Button
            variant="outlined"
            size="small"
            onClick={goToProxies}
            sx={{ borderRadius: 1.5 }}
            endIcon={<ChevronRight fontSize="small" />}
          >
            {t("layout.components.navigation.tabs.proxies")}
          </Button>
        </Box>
      }
    >
      {currentProxy ? (
        <Box>
          {/* 代理节点信息显示 */}
          <Box
            sx={{
              display: "flex",
              alignItems: "center",
              justifyContent: "space-between",
              p: 1,
              mb: 2,
              borderRadius: 1,
              bgcolor: alpha(theme.palette.primary.main, 0.05),
              border: `1px solid ${alpha(theme.palette.primary.main, 0.1)}`,
            }}
          >
            <Box>
              <Typography variant="body1" fontWeight="medium">
                {currentProxy.name}
              </Typography>

              <Box
                sx={{ display: "flex", alignItems: "center", flexWrap: "wrap" }}
              >
                <Typography
                  variant="caption"
                  color="text.secondary"
                  sx={{ mr: 1 }}
                >
                  {currentProxy.type}
                </Typography>
                {isGlobalMode && (
                  <Chip
                    size="small"
                    label={t("home.components.currentProxy.labels.globalMode")}
                    color="primary"
                    sx={{ mr: 0.5 }}
                  />
                )}
                {isDirectMode && (
                  <Chip
                    size="small"
                    label={t("home.components.currentProxy.labels.directMode")}
                    color="success"
                    sx={{ mr: 0.5 }}
                  />
                )}
                {/* 节点特性 */}
                {currentProxy.udp && (
                  <Chip size="small" label="UDP" variant="outlined" />
                )}
                {currentProxy.tfo && (
                  <Chip size="small" label="TFO" variant="outlined" />
                )}
                {currentProxy.xudp && (
                  <Chip size="small" label="XUDP" variant="outlined" />
                )}
                {currentProxy.mptcp && (
                  <Chip size="small" label="MPTCP" variant="outlined" />
                )}
                {currentProxy.smux && (
                  <Chip size="small" label="SMUX" variant="outlined" />
                )}
              </Box>
            </Box>

            {/* 显示延迟 */}
            {currentProxy && !isDirectMode && (
              <Chip
                size="small"
                label={delayManager.formatDelay(currentDelay)}
                color={convertDelayColor(currentDelay)}
              />
            )}
          </Box>
          {/* 代理组选择器 */}
          <FormControl
            fullWidth
            variant="outlined"
            size="small"
            sx={{ mb: 1.5 }}
          >
            <InputLabel id="proxy-group-select-label">
              {t("home.components.currentProxy.labels.group")}
            </InputLabel>
            <Select
              labelId="proxy-group-select-label"
              value={state.selection.group}
              onChange={handleGroupChange}
              label={t("home.components.currentProxy.labels.group")}
              disabled={isGlobalMode || isDirectMode}
            >
              {state.proxyData.groups.map((group) => (
                <MenuItem key={group.name} value={group.name}>
                  {group.name}
                </MenuItem>
              ))}
            </Select>
          </FormControl>

          {/* 代理节点选择器 */}
          <FormControl fullWidth variant="outlined" size="small" sx={{ mb: 0 }}>
            <InputLabel id="proxy-select-label">
              {t("home.components.currentProxy.labels.proxy")}
            </InputLabel>
            <Select
              labelId="proxy-select-label"
              value={state.selection.proxy}
              onChange={handleProxyChange}
              label={t("home.components.currentProxy.labels.proxy")}
              disabled={isDirectMode}
              renderValue={renderProxyValue}
              MenuProps={{
                PaperProps: {
                  style: {
                    maxHeight: 500,
                  },
                },
              }}
            >
              {isDirectMode
                ? null
                : proxyOptions.map((proxy) => {
                    const delayValue =
                      state.proxyData.records[proxy.name] &&
                      state.selection.group
                        ? delayManager.getDelayFix(
                            state.proxyData.records[proxy.name],
                            state.selection.group,
                          )
                        : -1;
                    return (
                      <MenuItem
                        key={proxy.name}
                        value={proxy.name}
                        sx={{
                          display: "flex",
                          justifyContent: "space-between",
                          alignItems: "center",
                          width: "100%",
                          pr: 1,
                        }}
                      >
                        <Typography noWrap sx={{ flex: 1, mr: 1 }}>
                          {proxy.name}
                        </Typography>
                        <Chip
                          size="small"
                          label={delayManager.formatDelay(delayValue)}
                          color={convertDelayColor(delayValue)}
                          sx={{
                            minWidth: "60px",
                            height: "22px",
                            flexShrink: 0,
                          }}
                        />
                      </MenuItem>
                    );
                  })}
            </Select>
          </FormControl>
        </Box>
      ) : (
        <Box sx={{ textAlign: "center", py: 4 }}>
          <Typography variant="body1" color="text.secondary">
            {t("home.components.currentProxy.labels.noActiveNode")}
          </Typography>
        </Box>
      )}
    </EnhancedCard>
  );
};