feat(address): implement searchable select for province and city with geocoding support

assets/admin/pages/DoctorDetailPage.tsx

@@ -1,4 +1,5 @@
 import React, { useState, useEffect, useMemo, useRef, useCallback } from 'react';
+import { createPortal } from 'react-dom';
 import { useParams, useNavigate, useSearchParams } from 'react-router-dom';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import { useForm } from 'react-hook-form';
@@ -14,7 +15,7 @@ import {
 } from '@heroicons/react/24/outline';
 import { StarIcon as StarSolid } from '@heroicons/react/24/solid';
 import { toast } from 'sonner';
-import { MapContainer, TileLayer, Marker, useMapEvents } from 'react-leaflet';
+import { MapContainer, TileLayer, Marker, useMapEvents, useMap } from 'react-leaflet';
 import L from 'leaflet';
 import 'leaflet/dist/leaflet.css';
 import { api } from '../lib/api';
@@ -182,14 +183,35 @@ function StarRating({ rate }: { rate: number }) {
 
 const IRAN_CENTER: [number, number] = [32.4279, 53.6880];
 
+async function geocodeCityInIran(cityName: string): Promise<[number, number] | null> {
+  try {
+    const url = `https://nominatim.openstreetmap.org/search?q=${encodeURIComponent(cityName + ',ایران')}&format=json&countrycodes=ir&limit=1`;
+    const res = await fetch(url, { headers: { 'Accept-Language': 'fa' } });
+    const data = await res.json();
+    if (data?.[0]) return [parseFloat(data[0].lat), parseFloat(data[0].lon)];
+    return null;
+  } catch {
+    return null;
+  }
+}
+
 function MapClickHandler({ onPick }: { onPick: (lat: number, lng: number) => void }) {
   useMapEvents({ click: e => onPick(e.latlng.lat, e.latlng.lng) });
   return null;
 }
 
-function MapPicker({ lat, lng, onChange }: {
+function MapController({ flyTarget }: { flyTarget: [number, number] | null }) {
+  const map = useMap();
+  useEffect(() => {
+    if (flyTarget) map.flyTo(flyTarget, 12, { duration: 1.2 });
+  }, [flyTarget, map]);
+  return null;
+}
+
+function MapPicker({ lat, lng, onChange, flyTarget }: {
   lat: number | null; lng: number | null;
   onChange: (lat: number, lng: number) => void;
+  flyTarget?: [number, number] | null;
 }) {
   const pos: [number, number] | null = lat !== null && lng !== null ? [lat, lng] : null;
   const center: [number, number] = pos ?? IRAN_CENTER;
@@ -201,12 +223,101 @@ function MapPicker({ lat, lng, onChange }: {
           attribution='&copy; <a href="https://openstreetmap.org">OpenStreetMap</a>'
         />
         <MapClickHandler onPick={onChange} />
+        <MapController flyTarget={flyTarget ?? null} />
         {pos && <Marker position={pos} />}
       </MapContainer>
     </div>
   );
 }
 
+// ── Searchable Select ──────────────────────────────────────────────────────
+
+function SearchableSelect({ options, value, onChange, placeholder, disabled = false }: {
+  options: { value: number; label: string }[];
+  value: number | null;
+  onChange: (value: number | null, label: string | null) => void;
+  placeholder?: string;
+  disabled?: boolean;
+}) {
+  const [open, setOpen]     = useState(false);
+  const [q, setQ]           = useState('');
+  const [rect, setRect]     = useState<DOMRect | null>(null);
+  const btnRef              = useRef<HTMLButtonElement>(null);
+  const dropRef             = useRef<HTMLDivElement>(null);
+
+  const filtered = useMemo(
+    () => q ? options.filter(o => o.label.includes(q)) : options,
+    [options, q]
+  );
+  const selected = useMemo(() => options.find(o => o.value === value) ?? null, [options, value]);
+
+  const openDropdown = () => {
+    if (disabled || !btnRef.current) return;
+    setRect(btnRef.current.getBoundingClientRect());
+    setOpen(v => !v);
+    setQ('');
+  };
+
+  useEffect(() => {
+    if (!open) return;
+    const onDown = (e: MouseEvent) => {
+      if (
+        dropRef.current && !dropRef.current.contains(e.target as Node) &&
+        btnRef.current  && !btnRef.current.contains(e.target as Node)
+      ) setOpen(false);
+    };
+    document.addEventListener('mousedown', onDown);
+    return () => document.removeEventListener('mousedown', onDown);
+  }, [open]);
+
+  const dropStyle: React.CSSProperties = rect
+    ? { position: 'fixed', top: rect.bottom + 4, left: rect.left, width: rect.width, zIndex: 9999 }
+    : {};
+
+  return (
+    <div>
+      <button
+        ref={btnRef}
+        type="button"
+        disabled={disabled}
+        onClick={openDropdown}
+        className={`cp-input h-11 flex items-center justify-between text-right w-full ${disabled ? 'opacity-50 cursor-not-allowed' : 'cursor-pointer'} ${!selected ? 'text-slate-400 dark:text-slate-500' : ''}`}
+      >
+        <span className="truncate flex-1">{selected?.label ?? placeholder ?? 'انتخاب کنید'}</span>
+        <ChevronDownIcon className={`w-4 h-4 shrink-0 mr-2 transition-transform ${open ? 'rotate-180' : ''}`} />
+      </button>
+
+      {open && createPortal(
+        <div ref={dropRef} style={dropStyle}
+          className="bg-white dark:bg-gray-900 border border-slate-200 dark:border-gray-700 rounded-xl shadow-2xl overflow-hidden">
+          <div className="p-2 border-b border-slate-100 dark:border-gray-700">
+            <input autoFocus type="text" value={q} onChange={e => setQ(e.target.value)}
+              placeholder="جستجو..." className="cp-input text-sm h-8" />
+          </div>
+          <div className="max-h-52 overflow-y-auto">
+            <button type="button"
+              onClick={() => { onChange(null, null); setOpen(false); setQ(''); }}
+              className="w-full text-right px-3 py-2 text-sm text-slate-400 hover:bg-slate-50 dark:hover:bg-gray-800">
+              {placeholder ?? 'انتخاب کنید'}
+            </button>
+            {filtered.map(o => (
+              <button key={o.value} type="button"
+                onClick={() => { onChange(o.value, o.label); setOpen(false); setQ(''); }}
+                className={`w-full text-right px-3 py-2 text-sm hover:bg-slate-50 dark:hover:bg-gray-800 ${value === o.value ? 'text-primary-600 dark:text-primary-400 font-medium bg-primary-50 dark:bg-primary-500/10' : 'text-slate-700 dark:text-slate-300'}`}>
+                {o.label}
+              </button>
+            ))}
+            {filtered.length === 0 && (
+              <p className="text-xs text-slate-400 text-center py-3">نتیجه‌ای یافت نشد</p>
+            )}
+          </div>
+        </div>,
+        document.body
+      )}
+    </div>
+  );
+}
+
 // ── Hierarchical Specialty Picker ──────────────────────────────────────────
 
 function HierarchicalSpecialtyPicker({ selected, onChange, specialties }: {
@@ -430,10 +541,12 @@ function AddressModal({ open, onClose, existing, doctorUuid, onSaved }: {
     resolver: zodResolver(addrSchema),
   });
   const provinceId = watch('province_id');
+  const cityId     = watch('city_id');
   const latStr     = watch('latitude');
   const lngStr     = watch('longitude');
   const lat = latStr ? parseFloat(latStr) : null;
   const lng = lngStr ? parseFloat(lngStr) : null;
+  const [mapFlyTarget, setMapFlyTarget] = useState<[number, number] | null>(null);
 
   const provincesQ = useQuery({
     queryKey: ['provinces'],
@@ -495,40 +608,62 @@ function AddressModal({ open, onClose, existing, doctorUuid, onSaved }: {
       }
     >
       <form id="addr-form" onSubmit={handleSubmit(v => saveMut.mutate(v))} className="space-y-4">
+
+        {/* Row 1: Name + Phone */}
         <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
-          <div className="sm:col-span-2">
+          <div>
             <label className="block text-sm font-medium text-slate-700 dark:text-slate-300 mb-1.5">نام مطب / کلینیک</label>
             <input type="text" className="cp-input" placeholder="مثال: کلینیک مهر" {...register('name')} />
           </div>
-          <div className="sm:col-span-2">
-            <label className="block text-sm font-medium text-slate-700 dark:text-slate-300 mb-1.5">آدرس کامل</label>
-            <textarea rows={2} className="cp-input resize-none" placeholder="خیابان، کوچه، پلاک..." {...register('address')} />
-          </div>
           <div>
             <label className="block text-sm font-medium text-slate-700 dark:text-slate-300 mb-1.5">تلفن</label>
             <input type="text" dir="ltr" className="cp-input text-left" placeholder="021..." {...register('telephone')} />
           </div>
+        </div>
+
+        {/* Row 2: Full address */}
+        <div>
+          <label className="block text-sm font-medium text-slate-700 dark:text-slate-300 mb-1.5">آدرس کامل</label>
+          <textarea rows={2} className="cp-input resize-none" placeholder="خیابان، کوچه، پلاک..." {...register('address')} />
+        </div>
+
+        {/* Row 3: Province + City side by side */}
+        <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
           <div>
             <label className="block text-sm font-medium text-slate-700 dark:text-slate-300 mb-1.5">استان</label>
-            <select className="cp-select h-11" value={provinceId ?? ''}
-              onChange={e => { setValue('province_id', e.target.value ? Number(e.target.value) : null); setValue('city_id', null); }}>
-              <option value="">انتخاب استان</option>
-              {provinces.map(p => <option key={p.id} value={p.id}>{p.name}</option>)}
-            </select>
+            <SearchableSelect
+              options={provinces.map(p => ({ value: p.id, label: p.name }))}
+              value={provinceId ?? null}
+              placeholder="انتخاب استان"
+              onChange={(val) => {
+                setValue('province_id', val);
+                setValue('city_id', null);
+                setMapFlyTarget(null);
+              }}
+            />
           </div>
           <div>
             <label className="block text-sm font-medium text-slate-700 dark:text-slate-300 mb-1.5">شهر</label>
-            <select className="cp-select h-11" disabled={!provinceId}
-              {...register('city_id', { setValueAs: v => v ? Number(v) : null })}>
-              <option value="">انتخاب شهر</option>
-              {cities.map(c => <option key={c.id} value={c.id}>{c.name}</option>)}
-            </select>
+            <SearchableSelect
+              options={cities.map(c => ({ value: c.id, label: c.name }))}
+              value={cityId ?? null}
+              placeholder={provinceId ? 'انتخاب شهر' : 'ابتدا استان انتخاب کنید'}
+              disabled={!provinceId}
+              onChange={(val, label) => {
+                setValue('city_id', val);
+                if (label) {
+                  geocodeCityInIran(label).then(coords => {
+                    if (coords) setMapFlyTarget(coords);
+                  });
+                }
+              }}
+            />
           </div>
         </div>
 
-        {/* Map picker */}
+        {/* Row 4: Map */}
         <div>
-          <div className="flex items-center justify-between mb-2">
+          <div className="flex items-center justify-between mb-1.5">
             <label className="block text-sm font-medium text-slate-700 dark:text-slate-300">
               موقعیت روی نقشه
             </label>
@@ -538,8 +673,10 @@ function AddressModal({ open, onClose, existing, doctorUuid, onSaved }: {
               </span>
             )}
           </div>
-          <p className="text-xs text-slate-400 dark:text-slate-500 mb-2">روی نقشه کلیک کنید تا موقعیت انتخاب شود</p>
-          <MapPicker lat={lat} lng={lng}
+          <p className="text-xs text-slate-400 dark:text-slate-500 mb-2">
+            برای دقت بیشتر روی نقشه کلیک کنید
+          </p>
+          <MapPicker lat={lat} lng={lng} flyTarget={mapFlyTarget}
             onChange={(lt, ln) => { setValue('latitude', String(lt)); setValue('longitude', String(ln)); }} />
           {lat && lng && (
             <button type="button"