feat(admin): global pagination component + apply to brands/promotions/reviews

project/apps/admin/src/app/(dashboard)/brands/page.tsx

@@ -3,6 +3,7 @@ import { useState, useCallback, useEffect } from 'react';
 import type { Brand } from '@/types';
 import { brandsApi } from '@/lib/api-client';
 import { RowActions } from '@/components/ui/RowActions';
+import Pagination from '@/components/ui/Pagination';
 
 function slugify(text: string): string {
   return text
@@ -22,7 +23,10 @@ function autoSeoDescription(name: string): string {
 }
 
 export default function BrandsPage() {
+  const PAGE_SIZE = 20;
   const [brands, setBrands] = useState<Brand[]>([]);
+  const [total, setTotal] = useState(0);
+  const [offset, setOffset] = useState(0);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState('');
   const [showForm, setShowForm] = useState(false);
@@ -42,14 +46,15 @@ export default function BrandsPage() {
   const load = useCallback(async () => {
     setLoading(true);
     try {
-      const data = await brandsApi.list();
-      setBrands((data as { items?: Brand[] }).items ?? []);
+      const data = await brandsApi.list({ limit: PAGE_SIZE, offset });
+      setBrands(data.items ?? []);
+      setTotal(data.total ?? 0);
     } catch (e) {
       setError(e instanceof Error ? e.message : 'Error');
     } finally {
       setLoading(false);
     }
-  }, []);
+  }, [offset]);
 
   useEffect(() => { load(); }, [load]);
 
@@ -210,32 +215,39 @@ export default function BrandsPage() {
       )}
 
       <div className="bg-white border border-gray-200 rounded-xl overflow-hidden">
-        {loading ? <div className="p-12 text-center text-gray-400">Cargando...</div> :
-         error ? <div className="text-center text-red-600">{error}</div> :
-         brands.length === 0 ? <div className="p-12 text-center text-gray-400">No hay marcas</div> :
-         <table className="w-full">
-           <thead>
-             <tr className="bg-gray-50 border-b border-gray-200">
-               {['Nombre', 'Slug', 'SEO Title'].map(h => (
-                 <th key={h} className="text-left text-xs font-semibold text-gray-500 uppercase tracking-wide px-4 py-3">{h}</th>
-               ))}
-               <th className="text-left text-xs font-semibold text-gray-500 uppercase tracking-wide px-4 py-3">Acciones</th>
-             </tr>
-           </thead>
-           <tbody className="divide-y divide-gray-50">
-             {brands.map(b => (
-               <tr key={b.id} className="hover:bg-gray-50">
-                 <td className="px-4 py-3.5 text-sm font-medium text-gray-900">{b.name}</td>
-                 <td className="px-4 py-3.5 text-sm text-gray-500 font-mono">/{b.slug}</td>
-                 <td className="px-4 py-3.5 text-sm text-gray-500">{b.seoTitle ?? '—'}</td>
-                 <td className="px-4 py-3.5">
-                   <RowActions onEdit={() => openEdit(b)} onDelete={() => handleDelete(b.id)} />
-                 </td>
-               </tr>
-             ))}
-           </tbody>
-         </table>
-        }
+        {loading ? (
+          <div className="p-12 text-center text-gray-400">Cargando...</div>
+        ) : error ? (
+          <div className="text-center text-red-600 p-12">{error}</div>
+        ) : brands.length === 0 ? (
+          <div className="p-12 text-center text-gray-400">No hay marcas</div>
+        ) : (
+          <>
+            <table className="w-full">
+              <thead>
+                <tr className="bg-gray-50 border-b border-gray-200">
+                  {['Nombre', 'Slug', 'SEO Title'].map(h => (
+                    <th key={h} className="text-left text-xs font-semibold text-gray-500 uppercase tracking-wide px-4 py-3">{h}</th>
+                  ))}
+                  <th className="text-left text-xs font-semibold text-gray-500 uppercase tracking-wide px-4 py-3">Acciones</th>
+                </tr>
+              </thead>
+              <tbody className="divide-y divide-gray-50">
+                {brands.map(b => (
+                  <tr key={b.id} className="hover:bg-gray-50">
+                    <td className="px-4 py-3.5 text-sm font-medium text-gray-900">{b.name}</td>
+                    <td className="px-4 py-3.5 text-sm text-gray-500 font-mono">/{b.slug}</td>
+                    <td className="px-4 py-3.5 text-sm text-gray-500">{b.seoTitle ?? '—'}</td>
+                    <td className="px-4 py-3.5">
+                      <RowActions onEdit={() => openEdit(b)} onDelete={() => handleDelete(b.id)} />
+                    </td>
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+            <Pagination total={total} offset={offset} limit={PAGE_SIZE} onOffsetChange={setOffset} />
+          </>
+        )}
       </div>
     </div>
   );

project/apps/admin/src/app/(dashboard)/promotions/page.tsx

@@ -2,11 +2,15 @@
 import { useState, useEffect, useCallback } from 'react';
 import { promotionsApi } from '@/lib/api-client';
 import { RowActions } from '@/components/ui/RowActions';
+import Pagination from '@/components/ui/Pagination';
 
 interface Promo { code: string; type: string; value: number; startsAt: string; endsAt: string; active: boolean; usageLimit: number | null; usageCount: number; }
 
 export default function PromotionsPage() {
+  const PAGE_SIZE = 20;
   const [items, setItems] = useState<Promo[]>([]);
+  const [total, setTotal] = useState(0);
+  const [offset, setOffset] = useState(0);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState('');
   const [showForm, setShowForm] = useState(false);
@@ -22,11 +26,12 @@ export default function PromotionsPage() {
   const load = useCallback(async () => {
     setLoading(true);
     try {
-      const d = await promotionsApi.list() as { items: Promo[] };
+      const d = await promotionsApi.list({ limit: PAGE_SIZE, offset }) as { items: Promo[]; total: number };
       setItems(d.items ?? []);
+      setTotal(d.total ?? 0);
     } catch (e) { setError(e instanceof Error ? e.message : 'Error'); }
     finally { setLoading(false); }
-  }, []);
+  }, [offset]);
 
   useEffect(() => { load(); }, [load]);
 
@@ -106,32 +111,39 @@ export default function PromotionsPage() {
       )}
 
       <div className="bg-white border border-gray-200 rounded-xl overflow-hidden">
-        {loading ? <div className="p-12 text-center text-gray-400">Cargando...</div> :
-         error ? <div className="text-center text-red-600">{error}</div> :
-         items.length === 0 ? <div className="p-12 text-center text-gray-400">No hay promociones</div> :
-         <table className="w-full">
-           <thead><tr className="bg-gray-50 border-b border-gray-200">
-             {['Código','Tipo','Valor','Activa','Límite','Usos','Fin'].map(h => <th key={h} className="text-left text-xs font-semibold text-gray-500 uppercase tracking-wide px-4 py-3">{h}</th>)}
-             <th className="px-4 py-3"></th>
-           </tr></thead>
-           <tbody className="divide-y divide-gray-50">
-             {items.map(p => (
-               <tr key={p.code} className="hover:bg-gray-50">
-                 <td className="px-4 py-3.5 font-mono text-sm font-medium text-gray-900">{p.code}</td>
-                 <td className="px-4 py-3.5 text-sm text-gray-600">{p.type === 'percent' ? '%' : 'Fijo'}</td>
-                 <td className="px-4 py-3.5 text-sm font-medium text-gray-900">{p.type === 'percent' ? `${p.value / 100}%` : `€${(p.value / 100).toFixed(2)}`}</td>
-                 <td className="px-4 py-3.5">
-                   <button onClick={() => toggleActive(p.code, p.active)} className={`px-2 py-0.5 rounded-full text-xs font-medium ${p.active ? 'bg-green-100 text-green-700' : 'bg-gray-100 text-gray-500'}`}>{p.active ? 'Sí' : 'No'}</button>
-                 </td>
-                 <td className="px-4 py-3.5 text-sm text-gray-500">{p.usageLimit ?? '∞'}</td>
-                 <td className="px-4 py-3.5 text-sm text-gray-500">{p.usageCount}</td>
-                 <td className="px-4 py-3.5 text-sm text-gray-500">{new Date(p.endsAt).toLocaleDateString('es-ES')}</td>
-                 <td className="px-4 py-3.5"><RowActions onDelete={() => handleDelete(p.code)} /></td>
-               </tr>
-             ))}
-           </tbody>
-         </table>
-        }
+        {loading ? (
+          <div className="p-12 text-center text-gray-400">Cargando...</div>
+        ) : error ? (
+          <div className="text-center text-red-600 p-12">{error}</div>
+        ) : items.length === 0 ? (
+          <div className="p-12 text-center text-gray-400">No hay promociones</div>
+        ) : (
+          <>
+            <table className="w-full">
+              <thead><tr className="bg-gray-50 border-b border-gray-200">
+                {['Código','Tipo','Valor','Activa','Límite','Usos','Fin'].map(h => <th key={h} className="text-left text-xs font-semibold text-gray-500 uppercase tracking-wide px-4 py-3">{h}</th>)}
+                <th className="px-4 py-3"></th>
+              </tr></thead>
+              <tbody className="divide-y divide-gray-50">
+                {items.map(p => (
+                  <tr key={p.code} className="hover:bg-gray-50">
+                    <td className="px-4 py-3.5 font-mono text-sm font-medium text-gray-900">{p.code}</td>
+                    <td className="px-4 py-3.5 text-sm text-gray-600">{p.type === 'percent' ? '%' : 'Fijo'}</td>
+                    <td className="px-4 py-3.5 text-sm font-medium text-gray-900">{p.type === 'percent' ? `${p.value / 100}%` : `€${(p.value / 100).toFixed(2)}`}</td>
+                    <td className="px-4 py-3.5">
+                      <button onClick={() => toggleActive(p.code, p.active)} className={`px-2 py-0.5 rounded-full text-xs font-medium ${p.active ? 'bg-green-100 text-green-700' : 'bg-gray-100 text-gray-500'}`}>{p.active ? 'Sí' : 'No'}</button>
+                    </td>
+                    <td className="px-4 py-3.5 text-sm text-gray-500">{p.usageLimit ?? '∞'}</td>
+                    <td className="px-4 py-3.5 text-sm text-gray-500">{p.usageCount}</td>
+                    <td className="px-4 py-3.5 text-sm text-gray-500">{new Date(p.endsAt).toLocaleDateString('es-ES')}</td>
+                    <td className="px-4 py-3.5"><RowActions onDelete={() => handleDelete(p.code)} /></td>
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+            <Pagination total={total} offset={offset} limit={PAGE_SIZE} onOffsetChange={setOffset} />
+          </>
+        )}
       </div>
     </div>
   );

project/apps/admin/src/app/(dashboard)/reviews/page.tsx

@@ -1,6 +1,7 @@
 'use client';
 import { useState, useEffect, useCallback } from 'react';
 import { reviewsApi } from '@/lib/api-client';
+import Pagination from '@/components/ui/Pagination';
 
 interface Review {
   id: string; productId: string; userId: string; orderId: string;
@@ -23,8 +24,10 @@ function Stars({ n }: { n: number }) {
 }
 
 export default function ReviewsPage() {
+  const PAGE_SIZE = 20;
   const [items, setItems] = useState<Review[]>([]);
   const [total, setTotal] = useState(0);
+  const [offset, setOffset] = useState(0);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState('');
   const [filter, setFilter] = useState<string>('');
@@ -32,14 +35,15 @@ export default function ReviewsPage() {
   const load = useCallback(async () => {
     setLoading(true);
     try {
-      const d = await reviewsApi.listAdmin({ status: filter || undefined, limit: 50 }) as { items: Review[]; total: number };
+      const d = await reviewsApi.listAdmin({ status: filter || undefined, limit: PAGE_SIZE, offset }) as { items: Review[]; total: number };
       setItems(d.items ?? []);
       setTotal(d.total ?? 0);
     } catch (e) { setError(e instanceof Error ? e.message : 'Error'); }
     finally { setLoading(false); }
-  }, [filter]);
+  }, [filter, offset]);
 
   useEffect(() => { load(); }, [load]);
+  useEffect(() => { setOffset(0); }, [filter]);
 
   const moderate = async (id: string, status: 'published' | 'rejected') => {
     try {
@@ -62,34 +66,41 @@ export default function ReviewsPage() {
       </div>
 
       <div className="space-y-4">
-        {loading ? <div className="p-12 text-center text-gray-400">Cargando...</div> :
-         error ? <div className="text-center text-red-600">{error}</div> :
-         items.length === 0 ? <div className="p-12 text-center text-gray-400">No hay reseñas</div> :
-         items.map(r => (
-           <div key={r.id} className="bg-white border border-gray-200 rounded-xl p-5">
-             <div className="flex items-start justify-between mb-3">
-               <div>
-                 <Stars n={r.rating} />
-                 <p className="font-semibold text-gray-900 text-sm mt-1">{r.title}</p>
-                 <p className="text-xs text-gray-400 mt-0.5">{new Date(r.createdAt).toLocaleString('es-ES')}</p>
-               </div>
-               <span className={`px-2 py-0.5 rounded-full text-xs font-medium ${STATUS_CLS[r.status] ?? 'bg-gray-100 text-gray-600'}`}>{STATUS_LABELS[r.status] ?? r.status}</span>
-             </div>
-             <p className="text-sm text-gray-600 leading-relaxed mb-4">{r.body}</p>
-             {r.status === 'pending' && (
-               <div className="flex gap-3">
-                 <button onClick={() => moderate(r.id, 'published')} className="px-4 py-2 bg-[#2D6A4F] hover:bg-[#1B4332] text-white text-xs font-semibold rounded-lg">✓ Publicar</button>
-                 <button onClick={() => moderate(r.id, 'rejected')} className="px-4 py-2 border border-red-200 text-red-600 hover:bg-red-50 text-xs font-semibold rounded-lg">✕ Rechazar</button>
-               </div>
-             )}
-             {r.status !== 'pending' && (
-               <button onClick={() => moderate(r.id, r.status === 'published' ? 'rejected' : 'published')} className="text-xs text-gray-400 hover:text-gray-600">
-                 {r.status === 'published' ? 'Despublicar' : 'Aprobar'}
-               </button>
-             )}
-           </div>
-         ))
-        }
+        {loading ? (
+          <div className="p-12 text-center text-gray-400">Cargando...</div>
+        ) : error ? (
+          <div className="text-center text-red-600 p-12">{error}</div>
+        ) : items.length === 0 ? (
+          <div className="p-12 text-center text-gray-400">No hay reseñas</div>
+        ) : (
+          <>
+            {items.map(r => (
+              <div key={r.id} className="bg-white border border-gray-200 rounded-xl p-5">
+                <div className="flex items-start justify-between mb-3">
+                  <div>
+                    <Stars n={r.rating} />
+                    <p className="font-semibold text-gray-900 text-sm mt-1">{r.title}</p>
+                    <p className="text-xs text-gray-400 mt-0.5">{new Date(r.createdAt).toLocaleString('es-ES')}</p>
+                  </div>
+                  <span className={`px-2 py-0.5 rounded-full text-xs font-medium ${STATUS_CLS[r.status] ?? 'bg-gray-100 text-gray-600'}`}>{STATUS_LABELS[r.status] ?? r.status}</span>
+                </div>
+                <p className="text-sm text-gray-600 leading-relaxed mb-4">{r.body}</p>
+                {r.status === 'pending' && (
+                  <div className="flex gap-3">
+                    <button onClick={() => moderate(r.id, 'published')} className="px-4 py-2 bg-[#2D6A4F] hover:bg-[#1B4332] text-white text-xs font-semibold rounded-lg">✓ Publicar</button>
+                    <button onClick={() => moderate(r.id, 'rejected')} className="px-4 py-2 border border-red-200 text-red-600 hover:bg-red-50 text-xs font-semibold rounded-lg">✕ Rechazar</button>
+                  </div>
+                )}
+                {r.status !== 'pending' && (
+                  <button onClick={() => moderate(r.id, r.status === 'published' ? 'rejected' : 'published')} className="text-xs text-gray-400 hover:text-gray-600">
+                    {r.status === 'published' ? 'Despublicar' : 'Aprobar'}
+                  </button>
+                )}
+              </div>
+            ))}
+            <Pagination total={total} offset={offset} limit={PAGE_SIZE} onOffsetChange={setOffset} />
+          </>
+        )}
       </div>
     </div>
   );

project/apps/admin/src/components/ui/Pagination.tsx

@@ -0,0 +1,67 @@
+'use client';
+
+interface PaginationProps {
+  /** Total number of items across all pages */
+  total: number;
+  /** Current offset (0-indexed) */
+  offset: number;
+  /** Items per page (default: 20) */
+  limit?: number;
+  /** Called when the user navigates to a new offset */
+  onOffsetChange: (newOffset: number) => void;
+  /** Optional className for the container */
+  className?: string;
+  /** Show when total is 0 (default: false — caller decides) */
+  hideWhenEmpty?: boolean;
+}
+
+/**
+ * Reusable pagination footer for admin list pages.
+ * Shows "X–Y de Z" counter and prev/next buttons.
+ * Buttons are disabled at the boundaries.
+ */
+export default function Pagination({
+  total,
+  offset,
+  limit = 20,
+  onOffsetChange,
+  className = '',
+  hideWhenEmpty = true,
+}: PaginationProps) {
+  if (hideWhenEmpty && total === 0) return null;
+
+  const from = total === 0 ? 0 : offset + 1;
+  const to = Math.min(offset + limit, total);
+  const hasPrev = offset > 0;
+  const hasNext = offset + limit < total;
+
+  return (
+    <div
+      className={`flex items-center justify-between px-4 py-3 border-t border-gray-200 bg-gray-50 ${className}`}
+    >
+      <p className="text-xs text-gray-500">
+        {total === 0 ? 'Sin resultados' : `Mostrando ${from}–${to} de ${total}`}
+      </p>
+      <div className="flex gap-1">
+        <button
+          type="button"
+          onClick={() => onOffsetChange(Math.max(0, offset - limit))}
+          disabled={!hasPrev}
+          aria-label="Página anterior"
+          className="px-3 py-1.5 text-xs border border-gray-300 rounded-lg disabled:opacity-40 hover:bg-white transition-colors"
+        >
+          ← Anterior
+        </button>
+        <button
+          type="button"
+          onClick={() => onOffsetChange(offset + limit)}
+          disabled={!hasNext}
+          aria-label="Página siguiente"
+          className="px-3 py-1.5 text-xs border border-gray-300 rounded-lg disabled:opacity-40 hover:bg-white transition-colors"
+        >
+          Siguiente →
+        </button>
+      </div>
+    </div>
+  );
+}

project/apps/admin/src/lib/api-client.ts

@@ -180,7 +180,16 @@ export const customersApi = {
 // ── Brands ────────────────────────────────────────────────────────────────────
 
 export const brandsApi = {
-  list: () => api.get<{ items: import('@/types').Brand[] }>('/api/brands'),
+  list: (params?: { limit?: number; offset?: number; q?: string }) => {
+    const sp = new URLSearchParams();
+    if (params?.limit) sp.set('limit', String(params.limit));
+    if (params?.offset) sp.set('offset', String(params.offset));
+    if (params?.q) sp.set('q', params.q);
+    const qs = sp.toString();
+    return api.get<{ items: import('@/types').Brand[]; total: number }>(
+      `/api/brands${qs ? `?${qs}` : ''}`,
+    ).then((data) => Array.isArray(data) ? { items: data, total: data.length } : data);
+  },
   create: (data: unknown) => api.post<import('@/types').Brand>('/api/brands', data),
   update: (id: string, data: unknown) =>
     api.patch<import('@/types').Brand>(`/api/brands/${id}`, data),
@@ -190,7 +199,16 @@ export const brandsApi = {
 // ── Categories ────────────────────────────────────────────────────────────────
 
 export const categoriesApi = {
-  list: () => api.get<{ items: import('@/types').Category[] }>('/api/categories/tree'),
+  list: (params?: { limit?: number; offset?: number; q?: string }) => {
+    const sp = new URLSearchParams();
+    if (params?.limit) sp.set('limit', String(params.limit));
+    if (params?.offset) sp.set('offset', String(params.offset));
+    if (params?.q) sp.set('q', params.q);
+    const qs = sp.toString();
+    return api.get<{ items: import('@/types').Category[]; total: number }>(
+      `/api/categories/tree${qs ? `?${qs}` : ''}`,
+    ).then((data) => Array.isArray(data) ? { items: data, total: data.length } : data);
+  },
   create: (data: unknown) => api.post<import('@/types').Category>('/api/categories', data),
   update: (id: string, data: unknown) =>
     api.patch<import('@/types').Category>(`/api/categories/${id}`, data),
@@ -248,7 +266,16 @@ export const pricingApi = {
 // ── Promotions ────────────────────────────────────────────────────────────────
 
 export const promotionsApi = {
-  list: () => api.get<{ items: unknown[] }>('/api/promotions'),
+  list: (params?: { limit?: number; offset?: number; q?: string }) => {
+    const sp = new URLSearchParams();
+    if (params?.limit) sp.set('limit', String(params.limit));
+    if (params?.offset) sp.set('offset', String(params.offset));
+    if (params?.q) sp.set('q', params.q);
+    const qs = sp.toString();
+    return api.get<{ items: unknown[]; total: number }>(
+      `/api/promotions${qs ? `?${qs}` : ''}`,
+    ).then((data) => Array.isArray(data) ? { items: data, total: data.length } : data);
+  },
   create: (data: unknown) => api.post('/api/promotions', data),
   update: (code: string, data: unknown) => api.patch(`/api/promotions/${code}`, data),
   delete: (code: string) => api.delete(`/api/promotions/${code}`),