import {
  Activity,
  BookMarked,
  CheckSquare,
  ChevronDown,
  ClipboardCopy,
  Clock,
  Copy,
  Download,
  Edit2,
  FileCode,
  FileSymlink,
  FolderPlus,
  FolderTree,
  Globe,
  Key,
  LayoutGrid,
  List,
  Network,
  NotebookText,
  Pin,
  Plug,
  Plus,
  Search,
  Settings,
  Square,
  Star,
  TerminalSquare,
  Trash2,
  Upload,
  Usb,
  X,
  Zap,
} from "lucide-react";
import React, {
  Suspense,
  lazy,
  memo,
  startTransition,
  useCallback,
  useEffect,
  useMemo,
  useRef,
  useState,
} from "react";
import { useI18n } from "../application/i18n/I18nProvider";
import { useStoredViewMode } from "../application/state/useStoredViewMode";
import { useStoredBoolean } from "../application/state/useStoredBoolean";
import { useStoredNumber } from "../application/state/useStoredNumber";
import { useStoredString } from "../application/state/useStoredString";
import type { VaultLockHandle } from "../application/state/vaultManagedImportLock";
import { useTreeExpandedState } from "../application/state/useTreeExpandedState";
import { useVaultGroupDeletion } from "../application/state/useVaultGroupDeletion";
import type { VaultHostPersistenceResult } from "../application/state/vaultImportProgress";
import type {
  VaultGroupMutationResult,
  VaultGroupMutationState,
} from "../domain/vaultGroupMutation";
import type { PluginImporterCommitRequest } from "../application/state/usePluginImporterCommit";
import { buildVaultCsvCredentialOptions } from "../application/vaultCsvExportCredentials";
import { sanitizeCredentialValue } from "../domain/credentials";
import {
  resolveGroupDefaults,
  applyGroupDefaults,
} from "../domain/groupConfig";
import {
  getEffectiveHostDistro,
  getHostAddressForClipboard,
  resolveTelnetPassword,
  resolveTelnetPort,
  resolveTelnetUsername,
  sanitizeHost,
  upsertHostById,
} from "../domain/host";
import { exportHostsToCsvWithStats } from "../domain/vaultImport";
import {
  remapSnippetTargetGroupPaths,
} from "../domain/hostGroupPathMutations";
import {
  reorderVaultItems,
  reorderVaultStrings,
  type VaultOrderPosition,
} from "../domain/vaultOrder";
import {
  STORAGE_KEY_VAULT_HOSTS_SORT_MODE,
  STORAGE_KEY_VAULT_HOSTS_TREE_EXPANDED,
  STORAGE_KEY_VAULT_HOSTS_VIEW_MODE,
  STORAGE_KEY_VAULT_SIDEBAR_COLLAPSED,
  STORAGE_KEY_VAULT_SIDEBAR_WIDTH,
} from "../infrastructure/config/storageKeys";
import { cn } from "../lib/utils";
import {
  ConnectionLog,
  GroupConfig,
  Host,
  HostProtocol,
  Identity,
  KnownHost,
  ManagedSource,
  ProxyProfile,
  SerialConfig,
  SSHKey,
  Snippet,
} from "../types";
import { AppLogo } from "./AppLogo";
import { connectHostsStaggered } from "./connectHostsStaggered";
import { DistroAvatar } from "./DistroAvatar";
import GroupDetailsPanel from "./GroupDetailsPanel";
import { getVaultHostGridColumnCount } from "./vault/vaultHostGridLayout";
import HostDetailsPanel from "./HostDetailsPanel";
import { HostTreeView } from "./HostTreeView";
import QuickConnectWizard from "./QuickConnectWizard";
import {
  isQuickConnectInput,
  parseQuickConnectInputWithWarnings,
} from "../domain/quickConnect";
import SerialConnectModal from "./SerialConnectModal";
import SerialHostDetailsPanel from "./SerialHostDetailsPanel";
import { NotesManager } from "./notes/NotesManager";
import { ImportVaultDialog } from "./vault/ImportVaultDialog";
import { HostTreeGroupDeleteDialog } from "./host/HostTreeGroupDeleteDialog";
import { useHostTreeInlineGroupActions } from "./vault/useHostTreeInlineGroupActions";
import { useHostTreeInlineHostActions } from "./vault/useHostTreeInlineHostActions";
import { useRegisterVaultHostTreeActions } from "./vault/useRegisterVaultHostTreeActions";
import { Button } from "./ui/button";
import { RippleButton } from "./ui/ripple";
import {
  ContextMenu,
  ContextMenuContent,
  ContextMenuItem,
  ContextMenuTrigger,
} from "./ui/context-menu";
import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogFooter,
  DialogHeader,
  DialogTitle,
} from "./ui/dialog";
import { Dropdown, DropdownContent, DropdownTrigger } from "./ui/dropdown";
import { Input } from "./ui/input";
import { Label } from "./ui/label";
import { SortDropdown, SortMode } from "./ui/sort-dropdown";
import { TagFilterDropdown } from "./ui/tag-filter-dropdown";
import { toast } from "./ui/toast";
import {
  Tooltip,
  TooltipContent,
  TooltipTrigger,
  TooltipProvider,
} from "./ui/tooltip";
import { Badge } from "./ui/badge";
import { HotkeyScheme, KeyBinding } from "../domain/models";
import { VaultViewLayout } from "./vault/VaultViewLayout";
import { useVaultHostCollections } from "./vault/useVaultHostCollections";
import { useVaultImportHandlers } from "../application/state/useVaultImportHandlers";
import { useVaultGroupDragHandlers } from "./vault/useVaultGroupDragHandlers";

const LazyProtocolSelectDialog = lazy(() => import("./ProtocolSelectDialog"));
const LazyConnectionLogsManager = lazy(() => import("./ConnectionLogsManager"));
const KeychainManager = lazy(() => import("./KeychainManager"));
const PortForwarding = lazy(() => import("./PortForwardingNew"));
const ProxyProfilesManager = lazy(() => import("./ProxyProfilesManager"));
const SnippetsManager = lazy(() => import("./SnippetsManager"));

export type VaultSection =
  | "hosts"
  | "keys"
  | "proxies"
  | "snippets"
  | "notes"
  | "port"
  | "knownhosts"
  | "logs";

const haveSameHostOrderResult = (previous: Host[], next: Host[]) => {
  if (previous.length !== next.length) return false;
  return next.every((host, index) => {
    const current = previous[index];
    return (
      current?.id === host.id &&
      current.order === host.order &&
      current.group === host.group &&
      current.label === host.label &&
      current.managedSourceId === host.managedSourceId
    );
  });
};

const haveSameGroupConfigs = (previous: GroupConfig[], next: GroupConfig[]) => {
  if (previous.length !== next.length) return false;
  return next.every((config, index) => {
    const current = previous[index];
    return current?.path === config.path && current.order === config.order;
  });
};

const VAULT_SIDEBAR_MIN_WIDTH = 56;
const VAULT_SIDEBAR_DEFAULT_WIDTH = 208;
const VAULT_SIDEBAR_MAX_WIDTH = 320;
const VAULT_SIDEBAR_LABEL_THRESHOLD = 132;

const isSortMode = (value: string): value is SortMode =>
  value === "manual" ||
  value === "az" ||
  value === "za" ||
  value === "newest" ||
  value === "oldest" ||
  value === "group";

// Props without isActive - it's now subscribed internally
interface VaultViewProps {
  hosts: Host[];
  keys: SSHKey[];
  identities: Identity[];
  proxyProfiles: ProxyProfile[];
  snippets: Snippet[];
  snippetPackages: string[];
  customGroups: string[];
  knownHosts: KnownHost[];
  managedSources: ManagedSource[];
  sessionCount: number;
  hotkeyScheme: HotkeyScheme;
  keyBindings: KeyBinding[];
  terminalThemeId: string;
  terminalFontSize: number;
  onOpenSettings: () => void;
  onOpenQuickSwitcher: () => void;
  onCreateLocalTerminal: () => void;
  onConnectSerial?: (
    config: SerialConfig,
    options?: { charset?: string },
  ) => void;
  onDeleteHost: (id: string) => void;
  onConnect: (host: Host) => void;
  onOpenHostFromNote?: (host: Host, source?: { noteId: string }) => void;
  onUpdateHosts: (hosts: Host[]) => VaultHostPersistenceResult | Promise<VaultHostPersistenceResult>;
  onReadPersistedHosts: () => Promise<Host[]>;
  onUpdateKeys: (keys: SSHKey[]) => void;
  onImportOrReuseKey: (draft: Partial<SSHKey>) => SSHKey;
  onUpdateIdentities: (identities: Identity[]) => void;
  onUpdateProxyProfiles: (profiles: ProxyProfile[]) => void;
  onUpdateSnippets: (snippets: Snippet[]) => void;
  onUpdateSnippetPackages: (pkgs: string[]) => void;
  onUpdateCustomGroups: (
    groups: string[] | ((current: string[]) => string[]),
  ) => void;
  onCommitPluginImporterData: (request: PluginImporterCommitRequest) => Promise<number>;
  onUpdateKnownHosts: (knownHosts: KnownHost[]) => void;
  onUpdateManagedSources: (
    managedSources: ManagedSource[] | ((current: ManagedSource[]) => ManagedSource[]),
  ) => void;
  onReadPersistedManagedSources: () => ManagedSource[];
  onCommitVaultImportTransaction: (
    hosts: Host[],
    updateGroups: (current: string[]) => string[],
    updateSources: (current: ManagedSource[]) => ManagedSource[],
    updateGroupConfigs?: (current: GroupConfig[]) => GroupConfig[],
    expectedHosts?: Host[],
    lock?: VaultLockHandle | null,
  ) => Promise<
    | {
      status: "persisted";
      groups: string[];
      sources: ManagedSource[];
      groupConfigs: GroupConfig[];
    }
    | { status: "superseded" }
  >;
  onCommitVaultGroupMutation: (
    mutate: (current: VaultGroupMutationState) => VaultGroupMutationResult,
    lock?: VaultLockHandle | null,
  ) => Promise<VaultGroupMutationResult | { ok: false; superseded: true }>;
  onClearAndRemoveManagedSource?: (source: ManagedSource) => Promise<() => Promise<void>>;
  onClearAndRemoveManagedSources?: (sources: ManagedSource[]) => Promise<() => Promise<void>>;
  onUnmanageSource?: (sourceId: string) => void;
  onConvertKnownHost: (knownHost: KnownHost) => void;
  onOpenLogView: (log: ConnectionLog) => void;
  onRunSnippet?: (snippet: Snippet, targetHosts: Host[]) => void;
  groupConfigs: GroupConfig[];
  onUpdateGroupConfigs: (configs: GroupConfig[]) => void;
  showRecentHosts: boolean;
  hostClickBehavior?: "connect" | "select";
  showOnlyUngroupedHostsInRoot: boolean;
  // Optional: navigate to a specific section on mount or when changed
  navigateToSection?: VaultSection | null;
  onNavigateToSectionHandled?: () => void;
  deepLinkHostDraft?: Host | null;
  onDeepLinkHostDraftHandled?: () => void;
  vaultFocusRequest?:
    | { type: "note"; noteId: string; requestId: number }
    | { type: "snippet"; snippetId: string; requestId: number }
    | null;
  onVaultFocusRequestHandled?: () => void;
  terminalSettings?: {
    verifyHostKeys: boolean;
    keepaliveInterval: number;
    keepaliveCountMax: number;
  };
}

const VaultViewInner: React.FC<VaultViewProps> = ({
  hosts,
  keys,
  identities,
  proxyProfiles,
  snippets,
  snippetPackages,
  customGroups,
  knownHosts,
  managedSources,
  sessionCount,
  hotkeyScheme,
  keyBindings,
  terminalThemeId,
  terminalFontSize,
  onOpenSettings,
  onOpenQuickSwitcher,
  onCreateLocalTerminal,
  onConnectSerial,
  onDeleteHost,
  onConnect,
  onOpenHostFromNote,
  onUpdateHosts,
  onReadPersistedHosts,
  onUpdateKeys,
  onImportOrReuseKey,
  onUpdateIdentities,
  onUpdateProxyProfiles,
  onUpdateSnippets,
  onUpdateSnippetPackages,
  onUpdateCustomGroups,
  onCommitPluginImporterData,
  onUpdateKnownHosts,
  onUpdateManagedSources,
  onReadPersistedManagedSources,
  onCommitVaultImportTransaction,
  onCommitVaultGroupMutation,
  onClearAndRemoveManagedSource,
  onClearAndRemoveManagedSources,
  onUnmanageSource,
  onConvertKnownHost,
  onOpenLogView,
  onRunSnippet,
  groupConfigs,
  onUpdateGroupConfigs,
  showRecentHosts,
  hostClickBehavior = "connect",
  showOnlyUngroupedHostsInRoot,
  navigateToSection,
  onNavigateToSectionHandled,
  deepLinkHostDraft,
  onDeepLinkHostDraftHandled,
  vaultFocusRequest,
  onVaultFocusRequestHandled,
  terminalSettings,
}) => {
  const { t } = useI18n();
  const rootRef = useRef<HTMLDivElement>(null);
  const hostsRef = useRef(hosts);
  hostsRef.current = hosts;
  const [currentSection, setCurrentSection] = useState<VaultSection>("hosts");
  const [search, setSearch] = useState("");
  const [selectedGroupPath, setSelectedGroupPath] = useState<string | null>(
    null,
  );
  const [isNewFolderOpen, setIsNewFolderOpen] = useState(false);
  const [newFolderName, setNewFolderName] = useState("");
  const [targetParentPath, setTargetParentPath] = useState<string | null>(null);
  const [isRenameGroupOpen, setIsRenameGroupOpen] = useState(false);
  const [renameTargetPath, setRenameTargetPath] = useState<string | null>(null);
  const [renameGroupName, setRenameGroupName] = useState("");
  const [renameGroupError, setRenameGroupError] = useState<string | null>(null);
  const [isImportOpen, setIsImportOpen] = useState(false);
  const [isSerialModalOpen, setIsSerialModalOpen] = useState(false);
  const [isDeleteGroupOpen, setIsDeleteGroupOpen] = useState(false);
  const [deleteTargetPath, setDeleteTargetPath] = useState<string | null>(null);
  const [bulkDeleteGroupPaths, setBulkDeleteGroupPaths] = useState<string[]>(
    [],
  );
  const [deleteGroupWithHosts, setDeleteGroupWithHosts] = useState(false);

  // Sidebar collapsed state with localStorage persistence
  const [storedSidebarCollapsed, setStoredSidebarCollapsed] = useStoredBoolean(
    STORAGE_KEY_VAULT_SIDEBAR_COLLAPSED,
    false,
  );
  const [sidebarWidth, setSidebarWidth, persistSidebarWidth] = useStoredNumber(
    STORAGE_KEY_VAULT_SIDEBAR_WIDTH,
    storedSidebarCollapsed
      ? VAULT_SIDEBAR_MIN_WIDTH
      : VAULT_SIDEBAR_DEFAULT_WIDTH,
    {
      min: VAULT_SIDEBAR_MIN_WIDTH,
      max: VAULT_SIDEBAR_MAX_WIDTH,
    },
  );
  const sidebarCollapsed = sidebarWidth < VAULT_SIDEBAR_LABEL_THRESHOLD;
  const setSidebarCollapsed = useCallback(
    (nextCollapsed: boolean) => {
      const nextWidth = nextCollapsed
        ? VAULT_SIDEBAR_MIN_WIDTH
        : VAULT_SIDEBAR_DEFAULT_WIDTH;
      setSidebarWidth(nextWidth);
      persistSidebarWidth(nextWidth);
      setStoredSidebarCollapsed(nextCollapsed);
    },
    [persistSidebarWidth, setSidebarWidth, setStoredSidebarCollapsed],
  );
  const handleSidebarWidthCommit = useCallback(
    (nextWidth: number) => {
      const clampedWidth = Math.max(
        VAULT_SIDEBAR_MIN_WIDTH,
        Math.min(VAULT_SIDEBAR_MAX_WIDTH, nextWidth),
      );
      setSidebarWidth(clampedWidth);
      persistSidebarWidth(clampedWidth);
      setStoredSidebarCollapsed(clampedWidth < VAULT_SIDEBAR_LABEL_THRESHOLD);
    },
    [persistSidebarWidth, setSidebarWidth, setStoredSidebarCollapsed],
  );

  // Handle external navigation requests
  useEffect(() => {
    if (navigateToSection) {
      setCurrentSection(navigateToSection);
      onNavigateToSectionHandled?.();
    }
  }, [navigateToSection, onNavigateToSectionHandled]);

  // View mode, sorting, and tag filter state
  const [viewMode, setViewMode] = useStoredViewMode(
    STORAGE_KEY_VAULT_HOSTS_VIEW_MODE,
    "grid",
  );
  const treeExpandedState = useTreeExpandedState(
    STORAGE_KEY_VAULT_HOSTS_TREE_EXPANDED,
  );
  const [sortMode, setSortMode] = useStoredString<SortMode>(
    STORAGE_KEY_VAULT_HOSTS_SORT_MODE,
    "manual",
    isSortMode,
  );
  const [selectedTags, setSelectedTags] = useState<string[]>([]);
  const [selectedHostIds, setSelectedHostIds] = useState<Set<string>>(
    new Set(),
  );
  const [selectedGroupPaths, setSelectedGroupPaths] = useState<Set<string>>(
    new Set(),
  );
  const [isMultiSelectMode, setIsMultiSelectMode] = useState(false);

  // Host panel state (local to hosts section)
  const [isHostPanelOpen, setIsHostPanelOpen] = useState(false);
  const [editingHost, setEditingHost] = useState<Host | null>(null);
  const [newHostGroupPath, setNewHostGroupPath] = useState<string | null>(null);
  const [pendingOpenNoteId, setPendingOpenNoteId] = useState<string | null>(
    null,
  );
  const handleOpenNoteIdHandled = useCallback(() => {
    setPendingOpenNoteId(null);
  }, []);
  const [pendingOpenSnippetId, setPendingOpenSnippetId] = useState<
    string | null
  >(null);

  useEffect(() => {
    if (!deepLinkHostDraft) return;
    setCurrentSection("hosts");
    setSelectedGroupPath(null);
    setNewHostGroupPath(null);
    setEditingHost(deepLinkHostDraft);
    setIsHostPanelOpen(true);
    onDeepLinkHostDraftHandled?.();
  }, [deepLinkHostDraft, onDeepLinkHostDraftHandled]);

  useEffect(() => {
    if (!vaultFocusRequest) return;
    if (vaultFocusRequest.type === "note") {
      setCurrentSection("notes");
      setPendingOpenNoteId(vaultFocusRequest.noteId);
    } else if (vaultFocusRequest.type === "snippet") {
      setCurrentSection("snippets");
      setPendingOpenSnippetId(vaultFocusRequest.snippetId);
    }
    onVaultFocusRequestHandled?.();
  }, [vaultFocusRequest, onVaultFocusRequestHandled]);

  // When the side panel is open, Tailwind's viewport-based grid-cols-* can't
  // react to the narrowed content area, so we drive the host-grid column count
  // off the actual container width (measured below). A fixed column count keeps
  // a lone card at one column's width instead of stretching it across the row
  // the way auto-fit + 1fr would. The count is published as a CSS variable
  // (set imperatively) rather than React state, so re-flowing the grid never
  // re-renders this (large) component during panel transitions / window resize.
  const hostListScrollRef = useRef<HTMLDivElement>(null);
  const splitGridColsRef = useRef(0);

  // Close host panel if the host being edited was deleted.
  // Track previous host IDs so we only close for actual deletions, not for
  // unsaved new/duplicated hosts whose IDs were never in the hosts array.
  const knownHostIdsRef = useRef(new Set(hosts.map((h) => h.id)));
  useEffect(() => {
    const currentIds = new Set(hosts.map((h) => h.id));
    // Check against previous IDs before updating the ref
    if (
      editingHost &&
      knownHostIdsRef.current.has(editingHost.id) &&
      !currentIds.has(editingHost.id)
    ) {
      setIsHostPanelOpen(false);
      setEditingHost(null);
      setNewHostGroupPath(null);
    }
    knownHostIdsRef.current = currentIds;
  }, [hosts, editingHost]);

  // Group panel state
  const [isGroupPanelOpen, setIsGroupPanelOpen] = useState(false);
  const [editingGroupPath, setEditingGroupPath] = useState<string | null>(null);

  // Compute inherited group defaults for the host being edited
  const editingHostGroupDefaults = useMemo(() => {
    const group = editingHost?.group || newHostGroupPath || selectedGroupPath;
    if (!group) return undefined;
    return resolveGroupDefaults(group, groupConfigs);
  }, [editingHost, newHostGroupPath, selectedGroupPath, groupConfigs]);
  const proxyProfileIdSet = useMemo(
    () => new Set(proxyProfiles.map((profile) => profile.id)),
    [proxyProfiles],
  );
  // Quick connect state
  const [quickConnectTarget, setQuickConnectTarget] = useState<{
    hostname: string;
    username?: string;
    port?: number;
  } | null>(null);
  const [isQuickConnectOpen, setIsQuickConnectOpen] = useState(false);
  const [quickConnectWarnings, setQuickConnectWarnings] = useState<string[]>(
    [],
  );

  // Protocol select state (for hosts with multiple protocols)
  const [protocolSelectHost, setProtocolSelectHost] = useState<Host | null>(
    null,
  );

  // Check if search input is a quick connect address
  const isSearchQuickConnect = useMemo(() => {
    return isQuickConnectInput(search);
  }, [search]);

  // Handle connect button click - detect quick connect or regular search
  const handleConnectClick = useCallback(() => {
    if (isSearchQuickConnect) {
      const parsed = parseQuickConnectInputWithWarnings(search);
      if (parsed.target) {
        setQuickConnectTarget(parsed.target);
        setQuickConnectWarnings(parsed.warnings);
        setIsQuickConnectOpen(true);
      }
    } else {
      onOpenQuickSwitcher();
    }
  }, [isSearchQuickConnect, search, onOpenQuickSwitcher]);

  // Handle search input keydown for quick connect
  const handleSearchKeyDown = useCallback(
    (e: React.KeyboardEvent) => {
      if (e.key === "Enter" && isSearchQuickConnect) {
        e.preventDefault();
        handleConnectClick();
      }
    },
    [isSearchQuickConnect, handleConnectClick],
  );

  // Handle host connect. Resolution order:
  //   Telnet set as default (protocol === 'telnet')  -> connect Telnet
  //   Telnet enabled but not the default             -> ask (protocol picker)
  //   Mosh enabled                                   -> connect Mosh
  //   otherwise                                      -> connect SSH
  const handleHostConnect = useCallback(
    (host: Host) => {
      const effective = host.group
        ? applyGroupDefaults(
            host,
            resolveGroupDefaults(host.group, groupConfigs, {
              validProxyProfileIds: proxyProfileIdSet,
            }),
            { validProxyProfileIds: proxyProfileIdSet },
          )
        : applyGroupDefaults(
            host,
            {},
            { validProxyProfileIds: proxyProfileIdSet },
          );
      // Only prompt when Telnet is available but isn't the host's default protocol.
      if (effective.telnetEnabled && effective.protocol !== "telnet") {
        setProtocolSelectHost(effective);
      } else if (effective.protocol === "telnet") {
        // Telnet-as-default wins over a stray moshEnabled flag.
        onConnect({ ...host, moshEnabled: false });
      } else {
        onConnect(host);
      }
    },
    [onConnect, groupConfigs, proxyProfileIdSet],
  );

  // Handle protocol selection
  const handleProtocolSelect = useCallback(
    (protocol: HostProtocol, port: number) => {
      if (protocolSelectHost) {
        const hostWithProtocol: Host = {
          ...protocolSelectHost,
          protocol: protocol === "mosh" || protocol === "et" ? "ssh" : protocol,
          port,
          moshEnabled: protocol === "mosh",
          etEnabled: protocol === "et",
        };
        onConnect(hostWithProtocol);
        setProtocolSelectHost(null);
      }
    },
    [protocolSelectHost, onConnect],
  );

  // Handle quick connect
  const handleQuickConnect = useCallback(
    (host: Host) => {
      onConnect(host);
      setIsQuickConnectOpen(false);
      setQuickConnectTarget(null);
      setQuickConnectWarnings([]);
      setSearch("");
    },
    [onConnect],
  );

  // Handle quick connect save host
  const handleQuickConnectSaveHost = useCallback(
    (host: Host) => {
      onUpdateHosts([...hosts, host]);
    },
    [hosts, onUpdateHosts],
  );

  const handleNewHost = useCallback(() => {
    setIsGroupPanelOpen(false);
    setEditingGroupPath(null);
    setEditingHost(null);
    setNewHostGroupPath(null);
    setIsHostPanelOpen(true);
  }, []);

  const handleEditHost = useCallback((host: Host) => {
    setIsGroupPanelOpen(false);
    setEditingGroupPath(null);
    setEditingHost(host);
    setIsHostPanelOpen(true);
  }, []);

  const handleDuplicateHost = useCallback(
    (host: Host) => {
      setCurrentSection("hosts");
      setIsGroupPanelOpen(false);
      setEditingGroupPath(null);
      // Create a copy of the host with a new ID and modified label
      const duplicatedHost: Host = {
        ...host,
        id: crypto.randomUUID(),
        label: `${host.label} (${t("action.copy")})`,
        createdAt: Date.now(),
        pinned: undefined,
        lastConnectedAt: undefined,
      };
      // Open the edit panel with the duplicated host for modification
      setEditingHost(duplicatedHost);
      setIsHostPanelOpen(true);
    },
    [t],
  );

  // Export hosts to CSV
  const handleExportHosts = useCallback(async () => {
    if (hosts.length === 0) {
      toast.warning(t("vault.hosts.export.toast.noHosts"));
      return;
    }

    const {
      keyPathsById,
      keyPassphrasesById,
      keyPassphrases,
      unreadablePassphraseCount,
    } = await buildVaultCsvCredentialOptions(hosts, keys);
    const { csv, exportedCount, skippedCount } = exportHostsToCsvWithStats(
      hosts,
      {
        keyPassphrases,
        keyPassphrasesById,
        keyPathsById,
      },
    );

    if (exportedCount === 0) {
      toast.warning(t("vault.hosts.export.toast.noHosts"));
      return;
    }

    const blob = new Blob([csv], { type: "text/csv;charset=utf-8;" });
    const url = URL.createObjectURL(blob);
    const link = document.createElement("a");
    link.href = url;
    link.download = `hosts_export_${new Date().toISOString().slice(0, 10)}.csv`;
    document.body.appendChild(link);
    link.click();
    document.body.removeChild(link);
    URL.revokeObjectURL(url);

    if (unreadablePassphraseCount > 0) {
      toast.warning(
        t("vault.hosts.export.toast.passphrasesSkipped", {
          count: unreadablePassphraseCount,
        }),
      );
    }
    if (skippedCount > 0) {
      toast.warning(
        t("vault.hosts.export.toast.successWithSkipped", {
          count: exportedCount,
          skipped: skippedCount,
        }),
      );
    } else {
      toast.success(
        t("vault.hosts.export.toast.success", { count: exportedCount }),
      );
    }
  }, [hosts, keys, t]);

  // Copy hostname/IP for cross-host paste without opening the editor
  const handleCopyHostname = useCallback(
    (host: Host) => {
      const hostname = getHostAddressForClipboard(host);
      if (!hostname) {
        toast.error(t("terminal.statusbar.copyHostname.error"));
        return;
      }
      void navigator.clipboard.writeText(hostname).then(
        () => {
          toast.success(
            t("terminal.statusbar.copyHostname.toast", { hostname }),
          );
        },
        () => {
          toast.error(t("terminal.statusbar.copyHostname.error"));
        },
      );
    },
    [t],
  );

  // Copy host credentials to clipboard
  const handleCopyCredentials = useCallback(
    (host: Host) => {
      // Apply group defaults so inherited credentials are included
      const effective = host.group
        ? applyGroupDefaults(
            host,
            resolveGroupDefaults(host.group, groupConfigs, {
              validProxyProfileIds: proxyProfileIdSet,
            }),
            { validProxyProfileIds: proxyProfileIdSet },
          )
        : applyGroupDefaults(
            host,
            {},
            { validProxyProfileIds: proxyProfileIdSet },
          );
      // Only use telnet-specific port and credentials when protocol is explicitly telnet
      // Don't treat telnetEnabled as primary - that's just an optional protocol
      const isTelnet = effective.protocol === "telnet";

      const defaultPort = isTelnet ? 23 : 22;
      const effectivePort = isTelnet
        ? resolveTelnetPort(effective)
        : (effective.port ?? 22);

      // Bracket IPv6 addresses when appending non-default port
      let address: string;
      if (effectivePort !== defaultPort) {
        const isIPv6 =
          effective.hostname.includes(":") &&
          !effective.hostname.startsWith("[");
        const hostname = isIPv6
          ? `[${effective.hostname}]`
          : effective.hostname;
        address = `${hostname}:${effectivePort}`;
      } else {
        address = effective.hostname;
      }

      // Resolve credentials from identity if configured, otherwise use host credentials
      // For telnet hosts, use telnet-specific credentials
      const identity = effective.identityId
        ? identities.find((i) => i.id === effective.identityId)
        : undefined;

      const username = isTelnet
        ? resolveTelnetUsername(effective)
        : identity?.username?.trim() || effective.username?.trim();

      const rawPassword = isTelnet
        ? resolveTelnetPassword(effective)
        : identity?.password || effective.password;
      const password = sanitizeCredentialValue(rawPassword);

      if (!password) {
        toast.warning(t("vault.hosts.copyCredentials.toast.noPassword"));
        return;
      }

      const text = `host: ${address}\nusername: ${username ?? ""}\npassword: ${password}`;
      navigator.clipboard.writeText(text).then(() => {
        toast.success(t("vault.hosts.copyCredentials.toast.success"));
      });
    },
    [identities, groupConfigs, proxyProfileIdSet, t],
  );

  const [lastPinnedId, setLastPinnedId] = useState<string | null>(null);
  const toggleHostPinned = useCallback(
    (hostId: string) => {
      const host = hostsRef.current.find((h) => h.id === hostId);
      const isPinning = host && !host.pinned;
      startTransition(() => {
        onUpdateHosts(
          hostsRef.current.map((h) =>
            h.id === hostId ? { ...h, pinned: !h.pinned } : h,
          ),
        );
      });
      setLastPinnedId(isPinning ? hostId : null);
    },
    [onUpdateHosts],
  );

  const toggleHostSelection = useCallback((hostId: string) => {
    setSelectedHostIds((prev) => {
      const next = new Set(prev);
      if (next.has(hostId)) {
        next.delete(hostId);
      } else {
        next.add(hostId);
      }
      return next;
    });
  }, []);

  const toggleGroupSelection = useCallback((groupPath: string) => {
    setSelectedGroupPaths((previous) => {
      const next = new Set(previous);
      if (next.has(groupPath)) {
        next.delete(groupPath);
      } else {
        next.add(groupPath);
      }
      return next;
    });
  }, []);

  const clearHostSelection = useCallback(() => {
    setSelectedHostIds(new Set());
    setSelectedGroupPaths(new Set());
    setIsMultiSelectMode(false);
  }, []);

  const deleteSelectedHosts = useCallback(() => {
    if (selectedHostIds.size === 0) return;
    const updatedHosts = hosts.filter((h) => !selectedHostIds.has(h.id));
    onUpdateHosts(updatedHosts);
    clearHostSelection();
    toast.success(
      t("vault.hosts.deleteMultiple.success", { count: selectedHostIds.size }),
    );
  }, [selectedHostIds, hosts, onUpdateHosts, clearHostSelection, t]);

  const connectSelectedHosts = useCallback(() => {
    if (selectedHostIds.size === 0) return;
    // Connect each selected host in list order with its default protocol.
    // We call onConnect directly (not handleHostConnect) so multi-protocol hosts
    // connect with their configured protocol instead of opening a per-host dialog.
    const targets = hosts.filter((h) => selectedHostIds.has(h.id));
    // Stagger the connects across frames so mounting N terminals (each creating
    // a WebGL context) doesn't block one frame and freeze the UI. The first host
    // still connects synchronously so its tab appears immediately.
    connectHostsStaggered(targets, onConnect);
    clearHostSelection();
    toast.success(
      t("vault.hosts.connectMultiple.success", { count: targets.length }),
    );
  }, [selectedHostIds, hosts, onConnect, clearHostSelection, t]);
  const { cancelImport, handleImportFileSelected, importProgress, resetImportProgress } =
    useVaultImportHandlers({
      customGroups,
      hosts,
      keys,
      managedSources,
      notify: toast,
      onReadPersistedHosts,
      onUpdateHosts,
      onUpdateKeys,
      onReadPersistedManagedSources,
      onCommitVaultImportTransaction,
      setIsImportOpen,
      t,
    });

  const {
    allGroupPaths,
    allTags,
    displayedGroups,
    displayedHosts,
    groupedDisplayHosts,
    handleDeleteTag,
    handleEditTag,
    knownHostsManagerElement,
    pinnedHosts,
    pinnedRecentIds,
    recentHosts,
    shouldHideEmptyRootHostsSection,
    treeViewGroupTree,
    treeViewHosts,
    visibleDisplayedHosts,
  } = useVaultHostCollections({
    customGroups,
    groupConfigs,
    hosts,
    knownHosts,
    onConvertKnownHost,
    onUpdateHosts,
    onUpdateKnownHosts,
    search,
    selectedGroupPath,
    selectedTags,
    showOnlyUngroupedHostsInRoot,
    showRecentHosts,
    sortMode,
    viewMode,
  });

  const submitNewFolder = () => {
    if (!newFolderName.trim()) return;
    const fullPath = targetParentPath
      ? `${targetParentPath}/${newFolderName.trim()}`
      : newFolderName.trim();
    onUpdateCustomGroups(Array.from(new Set([...customGroups, fullPath])));
    setNewFolderName("");
    setTargetParentPath(null);
    setIsNewFolderOpen(false);
  };

  const commitGroupPathChange = useCallback(async (
    sourcePath: string,
    nextPath: string,
    replacementConfig?: GroupConfig,
  ) => {
    try {
      return await onCommitVaultGroupMutation((current) => {
        if (!current.groups.includes(sourcePath)) {
          return { ok: false, error: `Group "${sourcePath}" was not found.` };
        }
        const belongsToTree = (path: string) => (
          path === sourcePath || path.startsWith(`${sourcePath}/`)
        );
        const rename = (path: string) => (
          path === sourcePath
            ? nextPath
            : path.startsWith(`${sourcePath}/`)
              ? nextPath + path.slice(sourcePath.length)
              : path
        );
        const occupied = new Set([
          ...current.groups.filter((path) => !belongsToTree(path)),
          ...current.configs.map((config) => config.path).filter((path) => !belongsToTree(path)),
        ]);
        const collision = [
          ...current.groups,
          ...current.configs.map((config) => config.path),
        ].filter(belongsToTree).map(rename).find((path) => occupied.has(path));
        if (collision) return { ok: false, error: `Group "${collision}" already exists.` };

        const configs = current.configs.map((config) => {
          if (replacementConfig && config.path === sourcePath) {
            return { ...replacementConfig, path: nextPath };
          }
          return belongsToTree(config.path) ? { ...config, path: rename(config.path) } : config;
        });
        if (replacementConfig && !current.configs.some((config) => config.path === sourcePath)) {
          configs.push({ ...replacementConfig, path: nextPath });
        }
        return {
          ok: true,
          state: {
            groups: Array.from(new Set(current.groups.map(rename))),
            configs,
            hosts: current.hosts.map((host) => (
              host.group && belongsToTree(host.group) ? { ...host, group: rename(host.group) } : host
            )),
            managedSources: current.managedSources.map((source) => (
              belongsToTree(source.groupName) ? { ...source, groupName: rename(source.groupName) } : source
            )),
            snippets: remapSnippetTargetGroupPaths(current.snippets, sourcePath, nextPath),
          },
        };
      });
    } catch (error) {
      return { ok: false as const, error: error instanceof Error ? error.message : String(error) };
    }
  }, [onCommitVaultGroupMutation]);

  const submitRenameGroup = async () => {
    if (!renameTargetPath) return;

    const nextName = renameGroupName.trim();
    if (!nextName) {
      setRenameGroupError(t("vault.groups.errors.required"));
      return;
    }
    if (nextName.includes("/") || nextName.includes("\\")) {
      setRenameGroupError(t("vault.groups.errors.invalidChars"));
      return;
    }

    const segments = renameTargetPath.split("/").filter(Boolean);
    const parent = segments.slice(0, -1).join("/");
    const nextPath = parent ? `${parent}/${nextName}` : nextName;
    if (nextPath === renameTargetPath) {
      setIsRenameGroupOpen(false);
      return;
    }

    const result = await commitGroupPathChange(renameTargetPath, nextPath);
    if ("superseded" in result || "error" in result) {
      setRenameGroupError("superseded" in result ? t("common.error") : result.error);
      return;
    }
    if (
      selectedGroupPath &&
      (selectedGroupPath === renameTargetPath ||
        selectedGroupPath.startsWith(renameTargetPath + "/"))
    ) {
      const suffix =
        selectedGroupPath === renameTargetPath
          ? ""
          : selectedGroupPath.slice(renameTargetPath.length);
      setSelectedGroupPath(nextPath + suffix);
    }

    setIsRenameGroupOpen(false);
  };

  const handleEditGroupConfig = useCallback((groupPath: string) => {
    setIsHostPanelOpen(false);
    setEditingHost(null);
    setEditingGroupPath(groupPath);
    setIsGroupPanelOpen(true);
  }, []);

  const handleSaveGroupConfig = useCallback(
    async (config: GroupConfig, _newName?: string, _newParent?: string | null) => {
      const oldPath = editingGroupPath!;
      const newPath = config.path; // Panel already computed the correct path

      // Validate no duplicate path on rename/reparent
      if (newPath !== oldPath && customGroups.includes(newPath)) {
        toast.error(t("vault.groups.errors.duplicatePath"));
        return;
      }

      // Save config (use new path)
      const updatedConfigs = [
        ...groupConfigs.filter((c) => c.path !== oldPath),
        config,
      ];

      // Handle path change (rename or parent change)
      if (newPath !== oldPath) {
        const result = await commitGroupPathChange(oldPath, newPath, config);
        if ("superseded" in result || "error" in result) {
          toast.error("superseded" in result ? t("common.error") : result.error);
          return;
        }
        if (selectedGroupPath === oldPath) setSelectedGroupPath(newPath);
        if (selectedGroupPath?.startsWith(oldPath + "/")) {
          setSelectedGroupPath(
            newPath + selectedGroupPath.slice(oldPath.length),
          );
        }
      } else {
        onUpdateGroupConfigs(updatedConfigs);
      }

      setIsGroupPanelOpen(false);
      setEditingGroupPath(null);
    },
    [
      groupConfigs,
      editingGroupPath,
      customGroups,
      selectedGroupPath,
      commitGroupPathChange,
      onUpdateGroupConfigs,
      t,
    ],
  );

  const handleDeletedGroupPaths = useCallback(
    (selectedRoots: string[]) => {
      if (
        selectedGroupPath &&
        selectedRoots.some(
          (root) =>
            selectedGroupPath === root ||
            selectedGroupPath.startsWith(root + "/"),
        )
      ) {
        setSelectedGroupPath(null);
      }
    },
    [selectedGroupPath],
  );
  const deleteGroupPaths = useVaultGroupDeletion({
    customGroups,
    hosts,
    groupConfigs,
    managedSources,
    onReadPersistedHosts,
    onReadPersistedManagedSources,
    onCommitVaultGroupMutation,
    onClearAndRemoveManagedSource,
    onClearAndRemoveManagedSources,
    onDeletedPaths: handleDeletedGroupPaths,
  });

  const deleteGroupPath = (path: string, deleteHosts: boolean = false) =>
    deleteGroupPaths([path], deleteHosts);

  const moveGroup = async (sourcePath: string, targetParent: string | null) => {
    const name = sourcePath.split("/").filter(Boolean).pop() || "";
    const newPath = targetParent ? `${targetParent}/${name}` : name;
    if (newPath === sourcePath || newPath.startsWith(sourcePath + "/")) return;
    if (customGroups.includes(newPath)) {
      toast.error(t("vault.groups.errors.duplicatePath"));
      return;
    }
    const result = await commitGroupPathChange(sourcePath, newPath);
    if ("superseded" in result || "error" in result) {
      toast.error("superseded" in result ? t("common.error") : result.error);
      return;
    }
    if (
      selectedGroupPath &&
      (selectedGroupPath === sourcePath ||
        selectedGroupPath.startsWith(sourcePath + "/"))
    ) {
      setSelectedGroupPath(newPath + selectedGroupPath.slice(sourcePath.length));
    }
  };

  const reorderHost = useCallback(
    (
      sourceHostId: string,
      targetHostId: string,
      position: VaultOrderPosition,
    ) => {
      const source = hostsRef.current.find((host) => host.id === sourceHostId);
      const target = hostsRef.current.find((host) => host.id === targetHostId);
      if (!source || !target) return;
      const targetGroup = target.group || "";
      const targetManagedSource = managedSources
        .filter(
          (sourceInfo) =>
            targetGroup === sourceInfo.groupName ||
            targetGroup.startsWith(`${sourceInfo.groupName}/`),
        )
        .sort((a, b) => b.groupName.length - a.groupName.length)[0];
      const updatedHosts = hostsRef.current.map((host) =>
        host.id === sourceHostId
          ? {
              ...host,
              label:
                targetManagedSource &&
                (!host.protocol || host.protocol === "ssh")
                  ? host.label.replace(/\s/g, "")
                  : host.label,
              group: targetGroup,
              managedSourceId:
                targetManagedSource &&
                (!host.protocol || host.protocol === "ssh")
                  ? targetManagedSource.id
                  : undefined,
            }
          : host,
      );
      const reorderedHosts = reorderVaultItems<Host>(
        updatedHosts,
        sourceHostId,
        targetHostId,
        position,
      );
      if (haveSameHostOrderResult(hostsRef.current, reorderedHosts)) return;
      onUpdateHosts(reorderedHosts);
      setSortMode("manual");
    },
    [managedSources, onUpdateHosts, setSortMode],
  );

  const reorderGroup = useCallback(
    (sourcePath: string, targetPath: string, position: VaultOrderPosition) => {
      const parentOf = (path: string) => {
        const parts = path.split("/").filter(Boolean);
        return parts.slice(0, -1).join("/");
      };
      if (parentOf(sourcePath) !== parentOf(targetPath)) return false;
      const sortableGroups = Array.from(
        new Set([...customGroups, sourcePath, targetPath]),
      );
      const updatedGroups = reorderVaultStrings(
        sortableGroups,
        sourcePath,
        targetPath,
        position,
      );
      const orderByPath = new Map(
        updatedGroups.map((path, index) => [path, (index + 1) * 1000]),
      );
      const configByPath = new Map<string, GroupConfig>(
        groupConfigs.map((config) => [config.path, config]),
      );
      const nextConfigs: GroupConfig[] = [
        ...updatedGroups.map((path) => {
          const existing = configByPath.get(path);
          const base: GroupConfig = existing ? { ...existing } : { path };
          return {
            ...base,
            order: orderByPath.get(path),
          };
        }),
        ...groupConfigs.filter((config) => !orderByPath.has(config.path)),
      ];
      if (
        updatedGroups.length === customGroups.length &&
        updatedGroups.every((path, index) => path === customGroups[index]) &&
        haveSameGroupConfigs(groupConfigs, nextConfigs)
      ) {
        return true;
      }
      onUpdateCustomGroups(updatedGroups);
      onUpdateGroupConfigs(nextConfigs);
      setSortMode("manual");
      return true;
    },
    [
      customGroups,
      groupConfigs,
      onUpdateCustomGroups,
      onUpdateGroupConfigs,
      setSortMode,
    ],
  );
  const {
    getDropTargetClasses,
    handleUnmanageGroup,
    managedGroupPaths,
    moveHostToGroup,
    setDragOverDropTarget,
    setGroupDragOverDropTarget,
  } = useVaultGroupDragHandlers({
    hosts,
    managedSources,
    onUnmanageSource,
    onUpdateHosts,
    onUpdateManagedSources,
    t,
  });

  const {
    startInlineNewGroup,
    startInlineRenameGroup,
    startInlineDeleteGroup,
    commitInlineGroupRename,
    cancelInlineGroupEdit,
  } = useHostTreeInlineGroupActions({
    customGroups,
    hosts,
    managedSources,
    onUpdateCustomGroups,
    onCommitGroupPathChange: commitGroupPathChange,
    selectedGroupPath,
    setSelectedGroupPath,
    ensurePathExpanded: treeExpandedState.ensurePathExpanded,
    unnamedGroupLabel: t("vault.groups.unnamed"),
    t,
  });

  const {
    startInlineRenameHost,
    commitInlineHostRename,
    cancelInlineHostEdit,
  } = useHostTreeInlineHostActions({
    hosts,
    onUpdateHosts,
    t,
  });

  useRegisterVaultHostTreeActions({
    handleCopyCredentials,
    handleCopyHostname,
    handleDuplicateHost,
    startInlineRenameHost,
    onDeleteHost,
    handleUnmanageGroup,
    moveHostToGroup,
    moveGroup,
    reorderHost,
    reorderGroup,
    managedGroupPaths,
    startInlineNewGroup,
    startInlineRenameGroup,
    startInlineDeleteGroup,
    commitInlineGroupRename,
    cancelInlineGroupEdit,
    commitInlineHostRename,
    cancelInlineHostEdit,
  });

  const isHostsSectionActive = currentSection === "hosts";
  const hasHostsSidePanel =
    isHostsSectionActive &&
    ((isGroupPanelOpen && !!editingGroupPath) || isHostPanelOpen);
  // Every host grid uses the same container-based fixed column count. This keeps
  // pinned/recent cards aligned with the virtualized main grid and prevents a
  // single card from stretching across the full row.
  const splitViewGridStyle = {
    gridTemplateColumns: "var(--vault-grid-cols, minmax(0, 1fr))",
  };

  // Track the host-list container width and derive the column count the same way
  // the auto-fit grid did (≈220px min card + 12px gap), but as a fixed count so
  // lone cards don't stretch. We write the whole grid-template-columns value into
  // a CSS variable imperatively (no setState) and only when the count actually
  // changes, so panel transitions / window resizing reflow the grid natively
  // without re-rendering this component.
  useEffect(() => {
    const el = hostListScrollRef.current;
    if (!el || typeof ResizeObserver === "undefined") return;
    const PADDING_X = 32; // matches px-4 on both sides
    const recompute = () => {
      const usable = el.clientWidth - PADDING_X;
      if (usable <= 0) return; // hidden / not laid out yet
      const next = getVaultHostGridColumnCount(usable);
      if (next === splitGridColsRef.current) return;
      splitGridColsRef.current = next;
      el.style.setProperty(
        "--vault-grid-cols",
        `repeat(${next}, minmax(0, 1fr))`,
      );
    };
    recompute();
    const observer = new ResizeObserver(recompute);
    observer.observe(el);
    return () => observer.disconnect();
  }, []);
  return (
    <>
      <HostTreeGroupDeleteDialog
        managedGroupPaths={managedGroupPaths}
        onConfirmDelete={deleteGroupPath}
      />
      <VaultViewLayout
        ctx={{
          Activity,
          allGroupPaths,
          allTags,
          AppLogo,
          Array,
          Badge,
          BookMarked,
          Boolean,
          bulkDeleteGroupPaths,
          Button,
          cancelImport,
          CheckSquare,
          ChevronDown,
          cancelInlineGroupEdit,
          clearHostSelection,
          ClipboardCopy,
          Clock,
          cn,
          commitInlineGroupRename,
          connectSelectedHosts,
          ContextMenu,
          ContextMenuContent,
          ContextMenuItem,
          ContextMenuTrigger,
          Copy,
          currentSection,
          customGroups,
          deleteGroupPath,
          deleteGroupPaths,
          deleteGroupWithHosts,
          deleteSelectedHosts,
          deleteTargetPath,
          Dialog,
          DialogContent,
          DialogDescription,
          DialogFooter,
          DialogHeader,
          DialogTitle,
          displayedGroups,
          displayedHosts,
          DistroAvatar,
          Download,
          Dropdown,
          DropdownContent,
          DropdownTrigger,
          Edit2,
          editingGroupPath,
          editingHost,
          editingHostGroupDefaults,
          FileCode,
          FileSymlink,
          FolderPlus,
          FolderTree,
          getDropTargetClasses,
          getEffectiveHostDistro,
          Globe,
          groupConfigs,
          GroupDetailsPanel,
          groupedDisplayHosts,
          handleConnectClick,
          handleCopyCredentials,
          handleCopyHostname,
          handleDeleteTag,
          handleDuplicateHost,
          handleEditGroupConfig,
          handleEditHost,
          handleEditTag,
          handleExportHosts,
          handleHostConnect,
          handleImportFileSelected,
          handleNewHost,
          handleProtocolSelect,
          handleQuickConnect,
          handleQuickConnectSaveHost,
          handleSaveGroupConfig,
          handleSearchKeyDown,
          handleUnmanageGroup,
          hasHostsSidePanel,
          HostDetailsPanel,
          hostListScrollRef,
          hosts,
          HostTreeView,
          hotkeyScheme,
          identities,
          importProgress,
          ImportVaultDialog,
          Input,
          isDeleteGroupOpen,
          isGroupPanelOpen,
          isHostPanelOpen,
          isHostsSectionActive,
          isImportOpen,
          isMultiSelectMode,
          isNewFolderOpen,
          isQuickConnectOpen,
          isRenameGroupOpen,
          isSearchQuickConnect,
          isSerialModalOpen,
          Key,
          keyBindings,
          KeychainManager,
          keys,
          knownHosts,
          knownHostsManagerElement,
          Label,
          lastPinnedId,
          LayoutGrid,
          LazyConnectionLogsManager,
          LazyProtocolSelectDialog,
          List,
          managedGroupPaths,
          managedSources,
          moveGroup,
          moveHostToGroup,
          Network,
          newFolderName,
          newHostGroupPath,
          NotebookText,
          NotesManager,
          onCommitPluginImporterData,
          onConnectSerial,
          onCreateLocalTerminal,
          onDeleteHost,
          onImportOrReuseKey,
          onOpenHostFromNote,
          onOpenLogView,
          onOpenSettings,
          onRunSnippet,
          onUpdateCustomGroups,
          onUpdateGroupConfigs,
          onUpdateHosts,
          onUpdateIdentities,
          onUpdateKeys,
          onUpdateProxyProfiles,
          onUpdateSnippetPackages,
          onUpdateSnippets,
          openNoteId: pendingOpenNoteId,
          onOpenNoteIdHandled: handleOpenNoteIdHandled,
          openSnippetId: pendingOpenSnippetId,
          onOpenSnippetIdHandled: () => setPendingOpenSnippetId(null),
          Pin,
          pinnedHosts,
          pinnedRecentIds,
          Plug,
          Plus,
          PortForwarding,
          protocolSelectHost,
          proxyProfiles,
          ProxyProfilesManager,
          quickConnectTarget,
          quickConnectWarnings,
          QuickConnectWizard,
          recentHosts,
          renameGroupError,
          renameGroupName,
          renameTargetPath,
          reorderGroup,
          reorderHost,
          resetImportProgress,
          RippleButton,
          rootRef,
          sanitizeHost,
          search,
          Search,
          selectedGroupPath,
          selectedGroupPaths,
          selectedHostIds,
          selectedTags,
          SerialConnectModal,
          SerialHostDetailsPanel,
          sessionCount,
          Set,
          setBulkDeleteGroupPaths,
          setCurrentSection,
          setDeleteGroupWithHosts,
          setDeleteTargetPath,
          setDragOverDropTarget,
          setEditingGroupPath,
          setEditingHost,
          setGroupDragOverDropTarget,
          setIsDeleteGroupOpen,
          setIsGroupPanelOpen,
          setIsHostPanelOpen,
          setIsImportOpen,
          setIsMultiSelectMode,
          setIsNewFolderOpen,
          setIsQuickConnectOpen,
          setIsRenameGroupOpen,
          setIsSerialModalOpen,
          setLastPinnedId,
          setNewFolderName,
          setNewHostGroupPath,
          setProtocolSelectHost,
          setQuickConnectTarget,
          setQuickConnectWarnings,
          setRenameGroupError,
          setRenameGroupName,
          setRenameTargetPath,
          setSearch,
          setSelectedGroupPath,
          setSelectedGroupPaths,
          setSelectedHostIds,
          setSelectedTags,
          setSidebarCollapsed,
          setSidebarWidth,
          handleSidebarWidthCommit,
          setSortMode,
          setTargetParentPath,
          Settings,
          setViewMode,
          shouldHideEmptyRootHostsSection,
          showRecentHosts,
          hostClickBehavior,
          sidebarCollapsed,
          sidebarWidth,
          snippetPackages,
          snippets,
          SnippetsManager,
          SortDropdown,
          sortMode,
          splitViewGridStyle,
          Square,
          Star,
          startInlineDeleteGroup,
          startInlineNewGroup,
          startInlineRenameGroup,
          submitNewFolder,
          submitRenameGroup,
          Suspense,
          t,
          TagFilterDropdown,
          targetParentPath,
          terminalFontSize,
          terminalSettings,
          TerminalSquare,
          terminalThemeId,
          toggleGroupSelection,
          toggleHostPinned,
          toggleHostSelection,
          Tooltip,
          TooltipContent,
          TooltipProvider,
          TooltipTrigger,
          Trash2,
          treeExpandedState,
          treeViewGroupTree,
          treeViewHosts,
          Upload,
          upsertHostById,
          Usb,
          viewMode,
          visibleDisplayedHosts,
          X,
          Zap,
        }}
      />
    </>
  );
};

// Only re-render when data props change - isActive is now managed internally via store subscription
export const vaultViewAreEqual = (
  prev: VaultViewProps,
  next: VaultViewProps,
): boolean => {
  const isEqual =
    prev.hosts === next.hosts &&
    prev.keys === next.keys &&
    prev.identities === next.identities &&
    prev.proxyProfiles === next.proxyProfiles &&
    prev.snippets === next.snippets &&
    prev.snippetPackages === next.snippetPackages &&
    prev.customGroups === next.customGroups &&
    prev.knownHosts === next.knownHosts &&
    // shellHistory / notes / connectionLogs are not VaultView props; those
    // sections subscribe to shellHistoryStore / notesStore / connectionLogsStore.
    prev.sessionCount === next.sessionCount &&
    prev.managedSources === next.managedSources &&
    prev.groupConfigs === next.groupConfigs &&
    prev.onReadPersistedHosts === next.onReadPersistedHosts &&
    prev.onReadPersistedManagedSources === next.onReadPersistedManagedSources &&
    prev.onCommitVaultImportTransaction === next.onCommitVaultImportTransaction &&
    prev.onCommitVaultGroupMutation === next.onCommitVaultGroupMutation &&
    prev.onCommitPluginImporterData === next.onCommitPluginImporterData &&
    prev.showRecentHosts === next.showRecentHosts &&
    prev.hostClickBehavior === next.hostClickBehavior &&
    prev.showOnlyUngroupedHostsInRoot === next.showOnlyUngroupedHostsInRoot &&
    prev.terminalThemeId === next.terminalThemeId &&
    prev.terminalFontSize === next.terminalFontSize &&
    prev.navigateToSection === next.navigateToSection &&
    prev.deepLinkHostDraft === next.deepLinkHostDraft &&
    prev.vaultFocusRequest === next.vaultFocusRequest &&
    // Only these terminal connection settings are forwarded to
    // PortForwarding inside the vault, so compare them directly. Other
    // terminal settings (fonts, themes, etc.) don't affect this subtree
    // and we don't want to re-render for them.
    prev.terminalSettings?.verifyHostKeys ===
      next.terminalSettings?.verifyHostKeys &&
    prev.terminalSettings?.keepaliveInterval ===
      next.terminalSettings?.keepaliveInterval &&
    prev.terminalSettings?.keepaliveCountMax ===
      next.terminalSettings?.keepaliveCountMax;

  return isEqual;
};

const MemoizedVaultViewInner = memo(VaultViewInner, vaultViewAreEqual);

// Just export the memoized component directly
// Visibility control is handled by parent (App.tsx)
export const VaultView = MemoizedVaultViewInner;
VaultView.displayName = "VaultView";