import { useState, useEffect, useRef } from 'react';
import api from './lib/api.js';
import CommunityAutocompleteInput from './components/CommunityAutocompleteInput.jsx';
import { 
  IconPlus, 
  IconSearch, 
  IconEdit, 
  IconTrash, 
  IconCheck, 
  IconX, 
  IconDatabase,
  IconRefresh,
  IconUpload,
  IconDownload,
  IconDeviceFloppy,
  IconHash,
  IconClock,
  IconFileText
} from '@tabler/icons-react';
import LockBanner from './components/LockBanner.jsx';
import TableSkeleton from './components/TableSkeleton.jsx';
import S3MetaBar from './components/S3MetaBar.jsx';
import ConfirmDiffModal from './components/ConfirmDiffModal.jsx';
import HistoryModal from './components/HistoryModal.jsx';

const API_URL = '/api';

function ASNsNewManager() {
  const [items, setItems] = useState([]);
  const [originalItems, setOriginalItems] = useState([]);
  const [etag, setEtag] = useState('');
  const [lastModified, setLastModified] = useState('');
  const [contentLength, setContentLength] = useState(null);
  const [newItem, setNewItem] = useState({ asn: '', community: '' });
  const [newInvalid, setNewInvalid] = useState({ asn: false, community: false });
  const [error, setError] = useState('');
  const [success, setSuccess] = useState('');
  const [searchTerm, setSearchTerm] = useState('');
  const [editingAsn, setEditingAsn] = useState(null);
  const [editingValue, setEditingValue] = useState('');
  const [loading, setLoading] = useState(false);
  const [showDeleteModal, setShowDeleteModal] = useState(false);
  const [itemToDelete, setItemToDelete] = useState(null);
  const [currentPage, setCurrentPage] = useState(1);
  const [sortField, setSortField] = useState('asn');
  const [sortOrder, setSortOrder] = useState('asc');
  const [filterCommunity, setFilterCommunity] = useState('');
  const editInputRef = useRef(null);
  const pageSize = 10;

  // Справочник community для подсказок
  const [communities, setCommunities] = useState([]);
  useEffect(() => {
    (async () => {
      try {
        const res = await api.get(`/communities`);
        setCommunities(Array.isArray(res.data) ? res.data : []);
      } catch (e) {
        // тихо игнорируем
      }
    })();
  }, []);

  const renderCommunityBadge = (value) => {
    const v = String(value ?? '').trim();
    if (!v) return <span className="badge bg-blue-lt text-blue">—</span>;
    const meta = communities.find(c => c.value === v);
    const color = (meta?.color || 'blue').toLowerCase().replace(/[^a-z-]/g, '');
    const cls = `badge bg-${color}-lt text-${color}`;
    const title = meta ? `${meta.name ? meta.name + ' — ' : ''}${meta.description || ''}${meta.tags && meta.tags.length ? ' (' + meta.tags.join(', ') + ')' : ''}` : '';
    return (
      <span className={cls} title={title}>{v}</span>
    );
  };

  const isValidAsn = (value) => /^[0-9]+$/.test(String(value).trim());
  // Допускаем как числовые, так и строковые (AS:NNN) community
  const isValidCommunity = (value) => /^(\d+|\d+:\d+)$/.test(String(value).trim());

  useEffect(() => {
    // Acquire soft lock
    const owner = localStorage.getItem('uiOwner') || `ui-${Math.random().toString(36).slice(2,8)}`;
    localStorage.setItem('uiOwner', owner);
    const resource = 'asns';
    const acquire = async () => {
      try { await api.post(`/locks/${resource}`, { owner, ttlSeconds: 180 }); } catch {}
    };
    acquire();
    const interval = setInterval(acquire, 60_000);
    fetchItems();
    return () => {
      clearInterval(interval);
      api.delete(`/locks/${resource}`).catch(() => {});
    };
  }, []);

  const fetchItems = async () => {
    setLoading(true);
    try {
      const response = await api.get(`/asns`, { params: { offset: 0, limit: 0 } });
      const payload = Array.isArray(response.data?.items) ? response.data.items : (Array.isArray(response.data) ? response.data : []);
      const mapped = payload.map(item => ({ asn: item.domain, community: item.type }));
      setItems(mapped);
      setOriginalItems(mapped);
      setEtag(response.headers?.etag || '');
      setLastModified(response.headers?.['last-modified'] || '');
      const lengthHeader = response.headers?.['content-length-source'];
      setContentLength(typeof lengthHeader !== 'undefined' ? Number(lengthHeader) : null);
      setError('');
    } catch (error) {
      console.error('Error fetching ASNs:', error);
      setError('Не удалось загрузить список ASN. Проверьте, запущен ли бэкенд.');
    } finally {
      setLoading(false);
    }
  };

  const handleAddItem = () => {
    const asnOk = isValidAsn(newItem.asn);
    const communityOk = isValidCommunity(newItem.community);
    setNewInvalid({ asn: !asnOk, community: !communityOk });
    if (!asnOk || !communityOk) {
      setError('Введите корректный номер ASN и числовой community.');
      return;
    }
    setError('');
    setItems([...items, { asn: String(newItem.asn).trim(), community: String(newItem.community).trim() }]);
    setNewItem({ asn: '', community: '' });
    setNewInvalid({ asn: false, community: false });
  };

  const handleEdit = (item) => {
    setEditingAsn(item.asn);
    setEditingValue(item.community);
  };

  const handleSaveEdit = (asn) => {
    if (!isValidCommunity(editingValue)) {
      setError('Community должен быть числом.');
      return;
    }
    const updatedItems = items.map(i =>
      i.asn === asn ? { ...i, community: String(editingValue).trim() } : i
    );
    setItems(updatedItems);
    setEditingAsn(null);
  };

  const handleCancelEdit = () => {
    setEditingAsn(null);
  };

  const handleDeleteItem = (asnToDelete) => {
    setItems(items.filter(i => i.asn !== asnToDelete));
  };

  const confirmDelete = (item) => {
    setItemToDelete(item);
    setShowDeleteModal(true);
  };

  const executeDelete = () => {
    if (itemToDelete) {
      handleDeleteItem(itemToDelete.asn);
      setShowDeleteModal(false);
      setItemToDelete(null);
    }
  };

  const deduplicate = (arr) => {
    const seen = new Set();
    const out = [];
    for (const i of arr) {
      const key = String(i.asn).trim();
      if (!key) continue;
      if (seen.has(key)) continue;
      seen.add(key);
      out.push({ asn: key, community: String(i.community || '').trim() });
    }
    return out;
  };

  const computeDiff = (before, after) => {
    const mapBefore = new Map(before.map(i => [i.asn, i]));
    const mapAfter = new Map(after.map(i => [i.asn, i]));
    const added = [];
    const removed = [];
    const changed = [];
    for (const [k, v] of mapAfter) {
      if (!mapBefore.has(k)) { added.push(v); continue; }
      const prev = mapBefore.get(k);
      if (String(prev.community) !== String(v.community)) changed.push({ from: prev, to: v });
    }
    for (const [k, v] of mapBefore) {
      if (!mapAfter.has(k)) removed.push(v);
    }
    return { added, removed, changed };
  };

  const [showDiff, setShowDiff] = useState(false);
  const [diff, setDiff] = useState({ added: [], removed: [], changed: [] });
  const [confirmSaveOpen, setConfirmSaveOpen] = useState(false);
  const [historyOpen, setHistoryOpen] = useState(false);

  const handlePreviewDiff = () => {
    const valid = items.filter(i => isValidAsn(i.asn) && isValidCommunity(i.community))
      .map(i => ({ asn: String(i.asn).trim(), community: String(i.community).trim() }));
    const unique = deduplicate(valid);
    setDiff(computeDiff(originalItems, unique));
    setShowDiff(true);
  };

  const handleSaveChanges = async () => {
    const valid = items.filter(i => isValidAsn(i.asn) && isValidCommunity(i.community))
      .map(i => ({ asn: String(i.asn).trim(), community: String(i.community).trim() }));
    const unique = deduplicate(valid);
    setDiff(computeDiff(originalItems, unique));
    setConfirmSaveOpen(true);
  };

  const performSave = async () => {
    setConfirmSaveOpen(false);
    setLoading(true);
    try {
      const valid = items.filter(i => isValidAsn(i.asn) && isValidCommunity(i.community))
        .map(i => ({ asn: String(i.asn).trim(), community: String(i.community).trim() }));
      const unique = deduplicate(valid);
      const payload = { domains: unique.map(i => ({ domain: i.asn, type: i.community })), etag };
      const response = await api.post(`/asns`, payload, { validateStatus: () => true });
      if (response.status === 412) {
        setError('Данные изменились в S3 (ETag mismatch). Обновите список и попробуйте снова.');
        return;
      }
      if (response.status >= 400) throw new Error(`Save failed with status ${response.status}`);
      setEtag(response.headers?.etag || etag);
      setOriginalItems(unique);
      setItems(unique);
      setSuccess('Изменения успешно сохранены!');
      setTimeout(() => setSuccess(''), 3000);
    } catch (error) {
      console.error('Error saving changes:', error);
      setError('Не удалось сохранить изменения.');
    } finally {
      setLoading(false);
    }
  };

  const handleImport = () => {
    const text = window.prompt('Вставьте строки: ASN ПРОБЕЛ COMMUNITY (по одной записи на строку)');
    if (!text) return;
    const lines = text.split(/\r?\n/).map(l => l.trim()).filter(Boolean);
    const parsed = lines.map(l => {
      const [a, c] = l.split(/\s+/);
      return { asn: (a || '').trim(), community: (c || '').trim() };
    }).filter(i => isValidAsn(i.asn) && isValidCommunity(i.community));
    setItems(prev => {
      const merged = [...prev, ...parsed];
      const map = new Map();
      for (const it of merged) {
        const key = String(it.asn).trim();
        if (!map.has(key)) map.set(key, { asn: key, community: String(it.community).trim() });
      }
      return Array.from(map.values());
    });
  };

  const handleExport = () => {
    const header = ['asn', 'community'];
    const csv = [header, ...items.map(i => [i.asn, i.community])]
      .map(r => r.map(x => `"${(x ?? '').toString().replace(/"/g, '""')}"`).join(','))
      .join('\n');
    const blob = new Blob([csv], { type: 'text/csv;charset=utf-8;' });
    const url = URL.createObjectURL(blob);
    const a = document.createElement('a');
    a.href = url;
    a.download = `asns_${new Date().toISOString().split('T')[0]}.csv`;
    a.click();
    URL.revokeObjectURL(url);
  };

  // Drag&Drop импорт
  const onDropImport = async (e) => {
    e.preventDefault();
    const file = e.dataTransfer?.files?.[0];
    if (!file) return;
    const text = await file.text();
    const lines = text.split(/\r?\n/).map(l => l.trim()).filter(Boolean);
    const parsed = lines.map(l => {
      const [a, c] = l.split(/\s+/);
      return { asn: (a || '').trim(), community: (c || '').trim() };
    }).filter(i => isValidAsn(i.asn) && isValidCommunity(i.community));
    setItems(prev => {
      const merged = [...prev, ...parsed];
      const map = new Map();
      for (const it of merged) {
        const key = String(it.asn).trim();
        if (!map.has(key)) map.set(key, { asn: key, community: String(it.community).trim() });
      }
      return Array.from(map.values());
    });
  };

  const clearInvalid = () => {
    setItems(prev => prev.filter(i => i.asn || i.community)
      .filter(i => isValidAsn(i.asn) && isValidCommunity(i.community))
    );
  };

  // Сортировка
  const sortedItems = [...items].sort((a, b) => {
    let valA = a[sortField] || '';
    let valB = b[sortField] || '';
    if (typeof valA === 'string') valA = valA.toLowerCase();
    if (typeof valB === 'string') valB = valB.toLowerCase();
    if (valA < valB) return sortOrder === 'asc' ? -1 : 1;
    if (valA > valB) return sortOrder === 'asc' ? 1 : -1;
    return 0;
  });

  // Фильтрация по community
  const filteredByCommunity = filterCommunity
    ? sortedItems.filter(i => i.community === filterCommunity)
    : sortedItems;

  // Поиск
  const filteredItems = filteredByCommunity.filter(i =>
    i.asn.toLowerCase().includes(searchTerm.toLowerCase())
  );

  // Пагинация
  const totalPages = Math.ceil(filteredItems.length / pageSize);
  const paginatedItems = filteredItems.slice((currentPage - 1) * pageSize, currentPage * pageSize);

  // Для фильтра - список всех уникальных community
  const allCommunities = Array.from(new Set(items.map(i => i.community)));

  // Сортировка по клику
  const handleSort = (field) => {
    if (sortField === field) {
      setSortOrder(sortOrder === 'asc' ? 'desc' : 'asc');
    } else {
      setSortField(field);
      setSortOrder('asc');
    }
  };

  // Улучшенный инлайн-редакт
  useEffect(() => {
    if (editingAsn && editInputRef.current) {
      editInputRef.current.focus();
    }
  }, [editingAsn]);

  const handleEditKeyDown = (e, asn) => {
    if (e.key === 'Enter') handleSaveEdit(asn);
    if (e.key === 'Escape') handleCancelEdit();
  };

  return (
    <>
      {error && (
        <div className="alert alert-danger alert-dismissible" role="alert">
          <div className="d-flex">
            <div>
              <IconX className="icon alert-icon" />
            </div>
            <div>
              {error}
            </div>
          </div>
          <button type="button" className="btn-close" onClick={() => setError('')}></button>
        </div>
      )}
      
      {success && (
        <div className="alert alert-success alert-dismissible" role="alert">
          <div className="d-flex">
            <div>
              <IconCheck className="icon alert-icon" />
            </div>
            <div>
              {success}
            </div>
          </div>
          <button type="button" className="btn-close" onClick={() => setSuccess('')}></button>
        </div>
      )}

      <div className="page-header d-print-none mb-4">
        <div className="row align-items-center">
          <div className="col">
            <h2 className="page-title">ASNs</h2>
            <div className="page-pretitle">Главная / Данные / ASNs</div>
          </div>
          <div className="col-auto ms-auto d-print-none">
            <div className="btn-list">
              <button className="btn btn-outline-secondary" onClick={() => setHistoryOpen(true)}>История</button>
            </div>
          </div>
        </div>
      </div>
      <div className="row">
        <div className="col-lg-3">
          <LockBanner resource="asns" className="mb-3" />
          {/* Add New ASN Card */}
          <div className="card card-md">
            <div className="card-header">
              <h3 className="card-title">
                <IconPlus className="icon me-2" />
                Добавить новый ASN
              </h3>
            </div>
            <div className="card-body">
              <form onSubmit={(e) => { e.preventDefault(); handleAddItem(); }}>
                <div className="mb-3">
                  <label className="form-label">Номер AS</label>
                  <input
                    type="text"
                    className={`form-control${newInvalid.asn ? ' is-invalid' : ''}`}
                    placeholder="12345"
                    value={newItem.asn}
                    onChange={(e) => setNewItem({ ...newItem, asn: e.target.value })}
                  />
                  {newInvalid.asn && <div className="invalid-feedback">Только цифры</div>}
                </div>
                <div className="mb-3">
                  <label className="form-label">Community</label>
                  <CommunityAutocompleteInput
                    value={newItem.community}
                    onChange={(v) => setNewItem({ ...newItem, community: v })}
                    communities={communities}
                    placeholder="Начните вводить номер или имя"
                    className={`form-control${newInvalid.community ? ' is-invalid' : ''}`}
                  />
                  {newInvalid.community && <div className="invalid-feedback">Только цифры</div>}
                  {(() => {
                    const match = communities.find(c => c.value === String(newItem.community).trim());
                    if (!match) return null;
                    return (
                      <div className="form-text">
                        {match.name && (<><strong>{match.name}</strong> — </>)}
                        {match.description || ''}
                        {match.tags && match.tags.length > 0 && (
                          <> (<span className="text-muted">{match.tags.join(', ')}</span>)</>
                        )}
                      </div>
                    );
                  })()}
                </div>
                <div className="form-footer">
                  <button type="submit" className="btn btn-primary w-100">
                    <IconPlus className="icon me-2" />
                    Добавить
                  </button>
                </div>
              </form>
            </div>
          </div>
          {/* Drag & Drop импорт */}
          <div
            className="card card-md border-dashed"
            onDragOver={(e) => { e.preventDefault(); }}
            onDrop={onDropImport}
          >
            <div className="card-body text-center text-muted">
              Перетащите файл TXT/CSV сюда для импорта (формат: ASN community)
            </div>
          </div>

          {/* Actions Card */}
          <div className="card card-md">
            <div className="card-header">
              <h3 className="card-title">
                <IconDatabase className="icon me-2" />
                Действия
              </h3>
            </div>
            <div className="card-body">
              <div className="d-grid gap-2">
                <button 
                  className="btn btn-primary"
                  onClick={handleSaveChanges}
                  disabled={loading}
                >
                  {loading ? (
                    <>
                      <span className="spinner-border spinner-border-sm me-2" role="status"></span>
                      Сохранение...
                    </>
                  ) : (
                    <>
                      <IconDeviceFloppy className="icon me-2" />
                      Сохранить в S3
                    </>
                  )}
                </button>
                <button 
                  className="btn btn-outline-secondary"
                  onClick={fetchItems}
                  disabled={loading}
                >
                  <IconRefresh className="icon me-2" />
                  Обновить
                </button>
                <button 
                  className="btn btn-outline-primary"
                  onClick={handleImport}
                >
                  <IconUpload className="icon me-2" />
                  Импорт из буфера
                </button>
                <button 
                  className="btn btn-outline-primary"
                  onClick={handleExport}
                  disabled={items.length === 0}
                >
                  <IconDownload className="icon me-2" />
                  Экспорт CSV
                </button>
                <button 
                  className="btn btn-outline-secondary"
                  onClick={handlePreviewDiff}
                  disabled={loading}
                >
                  Предпросмотр изменений
                </button>
                <button 
                  className="btn btn-outline-secondary"
                  onClick={clearInvalid}
                  disabled={items.length === 0}
                >
                  Очистить пустые/невалидные
                </button>
              </div>
            </div>
          </div>
        </div>

        <div className="col-lg-9">
          <div className="card">
            <div className="card-header d-flex justify-content-between align-items-center">
              <h3 className="card-title mb-0">Список ASN <span className="badge bg-blue-lt text-blue ms-2">{items.length}</span></h3>
              <div className="d-flex gap-2 w-50">
                {/* Фильтр по community */}
                <select className="form-select w-auto" value={filterCommunity} onChange={e => { setFilterCommunity(e.target.value); setCurrentPage(1); }}>
                  <option value="">Все community</option>
                  {allCommunities.map(community => (
                    <option key={community} value={community}>{community}</option>
                  ))}
                </select>
                {/* Поиск */}
                <div className="input-icon flex-grow-1">
                  <span className="input-icon-addon">
                    <IconSearch size={18} />
                  </span>
                  <input
                    type="text"
                    className="form-control"
                    placeholder="Поиск ASN..."
                    value={searchTerm}
                    onChange={e => { setSearchTerm(e.target.value); setCurrentPage(1); }}
                  />
                </div>
              </div>
              <div></div>
            </div>
            {/* Мета-информация будет показана внизу карточки */}
            {loading ? (
              <TableSkeleton rows={10} cols={3} />
            ) : (
            <div className="table-responsive">
              <table className="table card-table table-vcenter table-nowrap mb-0">
                <thead>
                  <tr>
                    <th style={{cursor:'pointer'}} onClick={() => handleSort('asn')}>
                      Номер AS
                      {sortField === 'asn' && (
                        <span className="ms-1">
                          {sortOrder === 'asc' ? '▲' : '▼'}
                        </span>
                      )}
                    </th>
                    <th style={{cursor:'pointer'}} onClick={() => handleSort('community')}>
                      Community
                      {sortField === 'community' && (
                        <span className="ms-1">
                          {sortOrder === 'asc' ? '▲' : '▼'}
                        </span>
                      )}
                    </th>
                    <th className="text-end"> </th>
                  </tr>
                </thead>
                <tbody>
                  {paginatedItems.map((item) => (
                    <tr key={item.asn} className={editingAsn === item.asn ? 'table-info' : ''}>
                      <td>{item.asn}</td>
                      <td>{renderCommunityBadge(item.community)}</td>
                      <td className="text-end">
                        {editingAsn === item.asn ? (
                          <>
                            <CommunityAutocompleteInput
                              value={editingValue}
                              onChange={setEditingValue}
                              communities={communities}
                              className={`form-control d-inline-block w-auto me-2${isValidCommunity(editingValue) ? '' : ' is-invalid'}`}
                            />
                            <button className="btn btn-success btn-icon btn-sm me-1" onClick={() => handleSaveEdit(item.asn)} disabled={!isValidCommunity(editingValue)}><IconCheck size={16} /></button>
                            <button className="btn btn-secondary btn-icon btn-sm" onClick={handleCancelEdit}><IconX size={16} /></button>
                          </>
                        ) : (
                          <>
                            <button className="btn btn-outline-primary btn-icon btn-sm me-1" onClick={() => handleEdit(item)}><IconEdit size={16} /></button>
                            <button className="btn btn-outline-danger btn-icon btn-sm" onClick={() => confirmDelete(item)}><IconTrash size={16} /></button>
                          </>
                        )}
                      </td>
                    </tr>
                  ))}
                </tbody>
              </table>
            </div>
            )}
            {/* Пагинация */}
            {totalPages > 1 && (
              <div className="card-footer d-flex align-items-center justify-content-between">
                <div className="text-muted">
                  Показано {((currentPage - 1) * pageSize) + 1} - {Math.min(currentPage * pageSize, filteredItems.length)} из {filteredItems.length}
                </div>
                <ul className="pagination m-0">
                  <li className={`page-item${currentPage === 1 ? ' disabled' : ''}`}>
                    <button className="page-link" onClick={() => setCurrentPage(1)} disabled={currentPage === 1}>Первая</button>
                  </li>
                  <li className={`page-item${currentPage === 1 ? ' disabled' : ''}`}>
                    <button className="page-link" onClick={() => setCurrentPage(currentPage - 1)} disabled={currentPage === 1}>Назад</button>
                  </li>
                  {(() => {
                    const pages = [];
                    let start = Math.max(1, currentPage - 2);
                    let end = Math.min(totalPages, currentPage + 2);
                    if (currentPage <= 3) end = Math.min(totalPages, 5);
                    if (currentPage >= totalPages - 2) start = Math.max(1, totalPages - 4);
                    if (start > 1) pages.push('start-ellipsis');
                    for (let p = start; p <= end; p++) pages.push(p);
                    if (end < totalPages) pages.push('end-ellipsis');
                    return pages.map((p) => (
                      p === 'start-ellipsis' || p === 'end-ellipsis' ? (
                        <li key={p} className="page-item disabled"><span className="page-link">…</span></li>
                      ) : (
                        <li key={p} className={`page-item${currentPage === p ? ' active' : ''}`}>
                          <button className="page-link" onClick={() => setCurrentPage(p)}>{p}</button>
                        </li>
                      )
                    ));
                  })()}
                  <li className={`page-item${currentPage === totalPages ? ' disabled' : ''}`}>
                    <button className="page-link" onClick={() => setCurrentPage(currentPage + 1)} disabled={currentPage === totalPages}>Вперед</button>
                  </li>
                  <li className={`page-item${currentPage === totalPages ? ' disabled' : ''}`}>
                    <button className="page-link" onClick={() => setCurrentPage(totalPages)} disabled={currentPage === totalPages}>Последняя</button>
                  </li>
                </ul>
              </div>
            )}
            <S3MetaBar keys={["asns"]} />
          </div>
        </div>
      </div>

      {/* Delete Confirmation Modal */}
      {showDeleteModal && (
        <div className="modal modal-blur fade show" style={{display: 'block'}} tabIndex="-1">
          <div className="modal-dialog modal-sm modal-dialog-centered" role="document">
            <div className="modal-content">
              <button 
                type="button" 
                className="btn-close" 
                onClick={() => setShowDeleteModal(false)}
              ></button>
              <div className="modal-status bg-danger"></div>
              <div className="modal-body text-center py-4">
                <IconTrash className="icon mb-2 text-danger icon-lg" />
                <h3>Удалить ASN?</h3>
                <div className="text-muted">
                  Вы уверены, что хотите удалить "{itemToDelete?.asn}"? Это действие необратимо.
                </div>
              </div>
              <div className="modal-footer">
                <div className="w-100">
                  <div className="row">
                    <div className="col">
                      <button 
                        className="btn w-100" 
                        onClick={() => setShowDeleteModal(false)}
                      >
                        Отмена
                      </button>
                    </div>
                    <div className="col">
                      <button 
                        className="btn btn-danger w-100" 
                        onClick={executeDelete}
                      >
                        Удалить
                      </button>
                    </div>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>
      )}
      <ConfirmDiffModal
        show={confirmSaveOpen}
        diff={diff}
        onConfirm={performSave}
        onClose={() => setConfirmSaveOpen(false)}
      />
      <HistoryModal
        resource="asns"
        show={historyOpen}
        onClose={() => setHistoryOpen(false)}
        onRolledBack={() => fetchItems()}
      />
      {/* datalist больше не нужен, т.к. используем кастомный автокомплит */}
    </>
  );
}

export default ASNsNewManager;