feat: Integrate ServerAutocompleteInput in BillingManager forms for optional server selection, enhancing user experience with improved search functionality and contextual help.

frontend/src/BillingManager.jsx

@@ -7,6 +7,7 @@ import Pagination from './components/Pagination.jsx';
 import PageHeader from './components/PageHeader.jsx';
 import PageHeaderActions from './components/PageHeaderActions.jsx';
 import FormField from './components/FormField.jsx';
+import ServerAutocompleteInput from './components/ServerAutocompleteInput.jsx';
 import ErrorAlert from './components/ErrorAlert.jsx';
 import { 
   IconPlus, 
@@ -1622,15 +1623,16 @@ function AddBillingForm({ item, onItemChange, servers }) {
         />
       </div>
       <div className="col-md-6">
-        <FormField
+        <label className="form-label">Связанный сервер (опционально)</label>
-          label="Связанный сервер (опционально)"
+        <ServerAutocompleteInput
-          name="serverId"
-          type="select"
           value={item.serverId || ''}
-          onChange={(value) => onItemChange({ ...item, serverId: value })}
+          onChange={(value) => onItemChange({ ...item, serverId: value || '' })}
-          options={serverOptions}
+          servers={servers}
-          helpText="Используется для связи с разделом «Серверы»"
+          placeholder="Поиск по IP, DNS, провайдеру..."
         />
+        <div className="form-hint mt-1">
+          Используется для связи с разделом «Серверы». Можно оставить пустым.
+        </div>
       </div>
       <div className="col-md-6">
         <FormField
@@ -1775,15 +1777,16 @@ function EditBillingForm({ item, onItemChange, servers }) {
         />
       </div>
       <div className="col-md-6">
-        <FormField
+        <label className="form-label">Связанный сервер (опционально)</label>
-          label="Связанный сервер (опционально)"
+        <ServerAutocompleteInput
-          name="serverId"
-          type="select"
           value={item.serverId || ''}
-          onChange={(value) => onItemChange({ ...item, serverId: value })}
+          onChange={(value) => onItemChange({ ...item, serverId: value || '' })}
-          options={serverOptions}
+          servers={servers}
-          helpText="Используется для связи с разделом «Серверы»"
+          placeholder="Поиск по IP, DNS, провайдеру..."
         />
+        <div className="form-hint mt-1">
+          Используется для связи с разделом «Серверы». Можно оставить пустым.
+        </div>
       </div>
       <div className="col-md-6">
         <FormField

frontend/src/components/ServerAutocompleteInput.jsx

@@ -0,0 +1,201 @@
+import { useEffect, useMemo, useRef, useState } from 'react';
+import { IconServer } from '@tabler/icons-react';
+
+/**
+ * Красивый selector серверов с автодополнением.
+ * Похож по UX на CommunityAutocompleteInput, но заточен под поля серверов.
+ */
+function ServerAutocompleteInput({
+  value,
+  onChange,
+  servers = [],
+  placeholder = '',
+  className = 'form-control',
+  onSelectMeta,
+  maxSuggestions = 12,
+}) {
+  const containerRef = useRef(null);
+  const inputRef = useRef(null);
+  const [open, setOpen] = useState(false);
+  const [activeIndex, setActiveIndex] = useState(-1);
+
+  const suggestions = useMemo(() => {
+    const q = String(value || '').toLowerCase();
+
+    const list = (servers || []).map((s) => {
+      const id = s.id || s.ip;
+      const labelIp = s.ip || '—';
+      const labelDns = s.dns || '';
+      const labelProvider = s.provider || '';
+      const label =
+        labelDns && labelProvider
+          ? `${labelIp} (${labelDns}) – ${labelProvider}`
+          : labelDns
+          ? `${labelIp} (${labelDns})`
+          : labelProvider
+          ? `${labelIp} – ${labelProvider}`
+          : `${labelIp}`;
+
+      return {
+        raw: s,
+        value: id,
+        label,
+        search: [
+          id,
+          s.ip,
+          s.extIp,
+          s.internalIp,
+          s.dns,
+          s.provider,
+          s.country,
+          s.gateway,
+        ]
+          .filter(Boolean)
+          .join(' ')
+          .toLowerCase(),
+      };
+    });
+
+    if (!q) return list.slice(0, maxSuggestions);
+    const filtered = list.filter((item) => item.search.includes(q));
+    return filtered.slice(0, maxSuggestions);
+  }, [value, servers, maxSuggestions]);
+
+  useEffect(() => {
+    const handleOutside = (e) => {
+      if (!containerRef.current) return;
+      if (!containerRef.current.contains(e.target)) setOpen(false);
+    };
+    document.addEventListener('click', handleOutside);
+    return () => document.removeEventListener('click', handleOutside);
+  }, []);
+
+  const selectItem = (item) => {
+    onChange(item.value);
+    if (onSelectMeta) onSelectMeta(item.raw);
+    setOpen(false);
+    setActiveIndex(-1);
+    if (inputRef.current) inputRef.current.focus();
+  };
+
+  const handleKeyDown = (e) => {
+    if (!open && (e.key === 'ArrowDown' || e.key === 'ArrowUp')) {
+      setOpen(true);
+      return;
+    }
+    if (!open) return;
+    if (e.key === 'ArrowDown') {
+      e.preventDefault();
+      setActiveIndex((prev) => Math.min(prev + 1, suggestions.length - 1));
+    } else if (e.key === 'ArrowUp') {
+      e.preventDefault();
+      setActiveIndex((prev) => Math.max(prev - 1, 0));
+    } else if (e.key === 'Enter') {
+      if (activeIndex >= 0 && activeIndex < suggestions.length) {
+        e.preventDefault();
+        selectItem(suggestions[activeIndex]);
+      }
+    } else if (e.key === 'Escape') {
+      setOpen(false);
+      setActiveIndex(-1);
+    }
+  };
+
+  // Текст в input: ищем label по выбранному serverId
+  const displayValue = useMemo(() => {
+    if (!value) return '';
+    const found = (servers || []).find((s) => (s.id || s.ip) === value);
+    if (!found) return '';
+    const ip = found.ip || '—';
+    const dns = found.dns || '';
+    const provider = found.provider || '';
+    if (dns && provider) return `${ip} (${dns}) – ${provider}`;
+    if (dns) return `${ip} (${dns})`;
+    if (provider) return `${ip} – ${provider}`;
+    return ip;
+  }, [value, servers]);
+
+  return (
+    <div ref={containerRef} className="position-relative" style={{ width: '100%' }}>
+      <div className="input-icon">
+        <span className="input-icon-addon">
+          <IconServer size={18} />
+        </span>
+        <input
+          ref={inputRef}
+          type="text"
+          className={className}
+          placeholder={placeholder}
+          value={open ? displayValue || value : displayValue}
+          onChange={(e) => {
+            onChange(e.target.value);
+            setOpen(true);
+          }}
+          onFocus={() => setOpen(true)}
+          onKeyDown={handleKeyDown}
+          autoComplete="off"
+        />
+      </div>
+
+      {open && suggestions.length > 0 && (
+        <div
+          className="dropdown-menu show"
+          style={{
+            display: 'block',
+            width: '100%',
+            maxHeight: 280,
+            overflowY: 'auto',
+          }}
+        >
+          <button
+            type="button"
+            className={`dropdown-item${activeIndex === -1 ? ' active' : ''}`}
+            onMouseDown={(e) => {
+              e.preventDefault();
+              onChange('');
+              if (onSelectMeta) onSelectMeta(null);
+              setOpen(false);
+              setActiveIndex(-1);
+            }}
+          >
+            <div className="d-flex align-items-center text-muted small">
+              <span className="me-2">Без привязки</span>
+            </div>
+          </button>
+
+          {suggestions.map((s, idx) => (
+            <button
+              type="button"
+              key={`${s.value}-${idx}`}
+              className={`dropdown-item${idx === activeIndex ? ' active' : ''}`}
+              onMouseDown={(e) => {
+                e.preventDefault();
+                selectItem(s);
+              }}
+              onMouseEnter={() => setActiveIndex(idx)}
+            >
+              <div className="d-flex align-items-start">
+                <span className="avatar me-2 bg-blue-lt text-blue border-0" style={{ width: 24, height: 24 }}>
+                  <IconServer size={14} />
+                </span>
+                <div className="flex-fill text-start">
+                  <div className="fw-medium">{s.label}</div>
+                  <div className="text-muted small text-truncate" style={{ maxWidth: '100%' }}>
+                    {s.raw.country && <span className="me-2">{s.raw.country}</span>}
+                    {s.raw.tunnel && <span className="me-2">{s.raw.tunnel}</span>}
+                    {s.raw.gateway && <span className="me-2">{s.raw.gateway}</span>}
+                  </div>
+                </div>
+              </div>
+            </button>
+          ))}
+        </div>
+      )}
+    </div>
+  );
+}
+
+export default ServerAutocompleteInput;
+
+
+