feat: Enhance DomainsNewManager with validation for domain and community fields, add import/export functionality, and improve UI with new icons and feedback messages

frontend/src/DomainsNewManager.jsx

@@ -8,7 +8,10 @@ import {
   IconCheck, 
   IconX, 
   IconDatabase,
-  IconRefresh
+  IconRefresh,
+  IconUpload,
+  IconDownload,
+  IconDeviceFloppy
 } from '@tabler/icons-react';
 
 const API_URL = '/api';
@@ -16,6 +19,7 @@ const API_URL = '/api';
 function DomainsNewManager() {
   const [items, setItems] = useState([]);
   const [newItem, setNewItem] = useState({ domain: '', community: '' });
+  const [newInvalid, setNewInvalid] = useState({ domain: false, community: false });
   const [error, setError] = useState('');
   const [success, setSuccess] = useState('');
   const [searchTerm, setSearchTerm] = useState('');
@@ -31,6 +35,14 @@ function DomainsNewManager() {
   const editInputRef = useRef(null);
   const pageSize = 10;
 
+  const isValidDomain = (value) => {
+    const v = String(value).trim().toLowerCase();
+    // Простой валидатор FQDN: sub.domain.tld
+    return /^([a-z0-9-]+\.)+[a-z]{2,}$/i.test(v);
+  };
+
+  const isValidCommunity = (value) => /^[0-9]+$/.test(String(value).trim());
+
   useEffect(() => {
     fetchItems();
   }, []);
@@ -50,17 +62,17 @@ function DomainsNewManager() {
   };
 
   const handleAddItem = () => {
-    if (newItem.domain.trim() === '') {
+    const domainOk = isValidDomain(newItem.domain);
-      setError('Имя домена не может быть пустым.');
+    const communityOk = isValidCommunity(newItem.community);
-      return;
+    setNewInvalid({ domain: !domainOk, community: !communityOk });
-    }
+    if (!domainOk || !communityOk) {
-    if (newItem.community.trim() === '') {
+      setError('Заполните корректный домен (example.com) и числовой community.');
-      setError('Community не может быть пустым.');
       return;
     }
     setError('');
-    setItems([...items, newItem]);
+    setItems([...items, { domain: newItem.domain.trim().toLowerCase(), community: String(newItem.community).trim() }]);
     setNewItem({ domain: '', community: '' });
+    setNewInvalid({ domain: false, community: false });
   };
 
   const handleEdit = (item) => {
@@ -69,8 +81,12 @@ function DomainsNewManager() {
   };
 
   const handleSaveEdit = (domainName) => {
+    if (!isValidCommunity(editingValue)) {
+      setError('Community должен быть числом.');
+      return;
+    }
     const updatedItems = items.map(i =>
-      i.domain === domainName ? { ...i, community: editingValue } : i
+      i.domain === domainName ? { ...i, community: String(editingValue).trim() } : i
     );
     setItems(updatedItems);
     setEditingDomain(null);
@@ -100,7 +116,9 @@ function DomainsNewManager() {
   const handleSaveChanges = async () => {
     setLoading(true);
     try {
-      await axios.post(`${API_URL}/domains-new`, { domains: items });
+      // сохраняем только валидные строки
+      const valid = items.filter(i => isValidDomain(i.domain) && isValidCommunity(i.community));
+      await axios.post(`${API_URL}/domains-new`, { domains: valid });
       setSuccess('Изменения успешно сохранены!');
       setTimeout(() => setSuccess(''), 3000);
     } catch (error) {
@@ -111,6 +129,37 @@ function DomainsNewManager() {
     }
   };
 
+  const handleImport = () => {
+    const text = window.prompt('Вставьте строки: DOMAIN 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 [d, c] = l.split(/\s+/);
+      return { domain: (d || '').toLowerCase(), community: c || '' };
+    });
+    setItems(prev => [...prev, ...parsed]);
+  };
+
+  const handleExport = () => {
+    const header = ['domain', 'community'];
+    const csv = [header, ...items.map(i => [i.domain, i.community])]
+      .map(r => r.map(x => `"${(x ?? '').toString().replace(/"/g, '""')}"`).join(','))
+      .join('\n');
+    const blob = new Blob([csv], { type: 'text/csv;charset=utf-8;' });
+    const url = URL.createObjectURL(blob);
+    const a = document.createElement('a');
+    a.href = url;
+    a.download = `domains_${new Date().toISOString().split('T')[0]}.csv`;
+    a.click();
+    URL.revokeObjectURL(url);
+  };
+
+  const clearInvalid = () => {
+    setItems(prev => prev.filter(i => i.domain || i.community)
+      .filter(i => isValidDomain(i.domain) && isValidCommunity(i.community))
+    );
+  };
+
   // Сортировка
   const sortedItems = [...items].sort((a, b) => {
     let valA = a[sortField] || '';
@@ -207,21 +256,24 @@ function DomainsNewManager() {
                   <label className="form-label">Домен</label>
                   <input
                     type="text"
-                    className="form-control"
+                    className={`form-control${newInvalid.domain ? ' is-invalid' : ''}`}
                     placeholder="example.com"
                     value={newItem.domain}
                     onChange={(e) => setNewItem({ ...newItem, domain: e.target.value })}
                   />
+                  {newInvalid.domain && <div className="invalid-feedback">Неверный формат домена</div>}
+                  <div className="form-text">Без http/https, только доменное имя</div>
                 </div>
                 <div className="mb-3">
                   <label className="form-label">Community</label>
                   <input
                     type="text"
-                    className="form-control"
+                    className={`form-control${newInvalid.community ? ' is-invalid' : ''}`}
                     placeholder="100"
                     value={newItem.community}
                     onChange={(e) => setNewItem({ ...newItem, community: e.target.value })}
                   />
+                  {newInvalid.community && <div className="invalid-feedback">Только цифры</div>}
                 </div>
                 <div className="form-footer">
                   <button type="submit" className="btn btn-primary w-100">
@@ -255,7 +307,7 @@ function DomainsNewManager() {
                     </>
                   ) : (
                     <>
-                      <IconDatabase className="icon me-2" />
+                      <IconDeviceFloppy className="icon me-2" />
                       Сохранить в S3
                     </>
                   )}
@@ -268,6 +320,28 @@ function DomainsNewManager() {
                   <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={clearInvalid}
+                  disabled={items.length === 0}
+                >
+                  Очистить пустые/невалидные
+                </button>
               </div>
             </div>
           </div>
@@ -276,7 +350,7 @@ function DomainsNewManager() {
         <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 доменов</h3>
+              <h3 className="card-title mb-0">Список доменов <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); }}>
@@ -333,14 +407,14 @@ function DomainsNewManager() {
                           <>
                             <input
                               type="text"
-                              className="form-control d-inline-block w-auto me-2"
+                              className={`form-control d-inline-block w-auto me-2${isValidCommunity(editingValue) ? '' : ' is-invalid'}`}
                               value={editingValue}
                               ref={editInputRef}
                               onChange={e => setEditingValue(e.target.value)}
                               onKeyDown={e => handleEditKeyDown(e, item.domain)}
                               style={{maxWidth: 120}}
                             />
-                            <button className="btn btn-success btn-icon me-1" onClick={() => handleSaveEdit(item.domain)}><IconCheck size={18} /></button>
+                            <button className="btn btn-success btn-icon me-1" onClick={() => handleSaveEdit(item.domain)} disabled={!isValidCommunity(editingValue)}><IconCheck size={18} /></button>
                             <button className="btn btn-secondary btn-icon" onClick={handleCancelEdit}><IconX size={18} /></button>
                           </>
                         ) : (