feat(F-102): completed feature

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

@@ -85,6 +85,12 @@ function MethodRow({ method, onEdit, onDelete }: { method: ShippingMethod; onEdi
       <td className="px-6 py-4 text-sm text-gray-600">{method.zoneName}</td>
       <td className="px-6 py-4 text-sm font-semibold text-gray-800">{fmt(method.baseCostCents)}</td>
       <td className="px-6 py-4 text-sm text-gray-500">{method.freeShippingThresholdCents ? `Gratis desde ${fmt(method.freeShippingThresholdCents)}` : '—'}</td>
+      <td className="px-6 py-4 text-sm text-gray-500">
+        {method.maxWeightKg !== null ? `Máx ${method.maxWeightKg} kg` : '—'}
+        {method.freeShippingMaxWeightKg !== null && (
+          <span className="block text-xs text-gray-400">gratis hasta {method.freeShippingMaxWeightKg} kg</span>
+        )}
+      </td>
       <td className="px-6 py-4">
         <span className={`inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium ${method.active ? 'bg-green-100 text-green-700' : 'bg-gray-100 text-gray-500'}`}>
           {method.active ? 'Activo' : 'Inactivo'}
@@ -103,6 +109,10 @@ function MethodForm({ zones, method, onSave, onCancel }: { zones: ShippingZone[]
   const [cost, setCost] = useState(method ? String(method.baseCostCents / 100) : '');
   const [threshold, setThreshold] = useState(method?.freeShippingThresholdCents ? String(method.freeShippingThresholdCents / 100) : '');
   const [description, setDescription] = useState(method?.description ?? '');
+  const [maxWeight, setMaxWeight] = useState(method?.maxWeightKg != null ? String(method.maxWeightKg) : '');
+  const [freeMaxWeight, setFreeMaxWeight] = useState(
+    method?.freeShippingMaxWeightKg != null ? String(method.freeShippingMaxWeightKg) : '',
+  );
   const [active, setActive] = useState(method?.active ?? true);
   const [saving, setSaving] = useState(false);
   const [err, setErr] = useState('');
@@ -113,12 +123,16 @@ function MethodForm({ zones, method, onSave, onCancel }: { zones: ShippingZone[]
       const baseCostCents = Math.round(parseFloat(cost) * 100);
       const freeThreshold = threshold ? Math.round(parseFloat(threshold) * 100) : null;
       const descriptionPayload = description.trim() || null;
+      const maxWeightPayload = maxWeight.trim() ? parseFloat(maxWeight.replace(',', '.')) : null;
+      const freeMaxWeightPayload = freeMaxWeight.trim() ? parseFloat(freeMaxWeight.replace(',', '.')) : null;
       if (method) {
         await shippingApi.updateMethod(method.id, {
           name,
           baseCostCents,
           freeShippingThresholdCents: freeThreshold,
           description: descriptionPayload,
+          maxWeightKg: maxWeightPayload,
+          freeShippingMaxWeightKg: freeMaxWeightPayload,
           active,
         });
       } else {
@@ -128,6 +142,8 @@ function MethodForm({ zones, method, onSave, onCancel }: { zones: ShippingZone[]
           baseCostCents,
           freeShippingThresholdCents: freeThreshold,
           description: descriptionPayload,
+          maxWeightKg: maxWeightPayload,
+          freeShippingMaxWeightKg: freeMaxWeightPayload,
           active,
         });
       }
@@ -152,6 +168,12 @@ function MethodForm({ zones, method, onSave, onCancel }: { zones: ShippingZone[]
         className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:ring-2 focus:ring-[#2D6A4F] outline-none" /></td>
       <td className="px-4 py-3"><input type="number" step="0.01" value={threshold} onChange={e => setThreshold(e.target.value)} placeholder="Sin gratis"
         className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:ring-2 focus:ring-[#2D6A4F] outline-none" /></td>
+      <td className="px-4 py-3">
+        <input type="number" step="0.001" min="0" value={maxWeight} onChange={e => setMaxWeight(e.target.value)} placeholder="Sin límite"
+          className="w-full px-3 py-2 border border-gray-300 rounded-lg text-xs focus:ring-2 focus:ring-[#2D6A4F] outline-none" />
+        <input type="number" step="0.001" min="0" value={freeMaxWeight} onChange={e => setFreeMaxWeight(e.target.value)} placeholder="Gratis hasta kg"
+          className="w-full px-3 py-2 mt-1.5 border border-gray-300 rounded-lg text-xs focus:ring-2 focus:ring-[#2D6A4F] outline-none" />
+      </td>
       <td className="px-4 py-3">
         <select value={String(active)} onChange={e => setActive(e.target.value === 'true')}
           className="px-3 py-2 border border-gray-300 rounded-lg text-sm focus:ring-2 focus:ring-[#2D6A4F] outline-none">
@@ -284,6 +306,7 @@ export default function ShippingPage() {
                 <th className="text-left px-6 py-3 text-xs font-semibold text-gray-500 uppercase">Zona</th>
                 <th className="text-left px-6 py-3 text-xs font-semibold text-gray-500 uppercase">Coste</th>
                 <th className="text-left px-6 py-3 text-xs font-semibold text-gray-500 uppercase">Envío gratis</th>
+                <th className="text-left px-6 py-3 text-xs font-semibold text-gray-500 uppercase">Peso</th>
                 <th className="text-left px-6 py-3 text-xs font-semibold text-gray-500 uppercase">Estado</th>
                 <th className="text-right px-6 py-3 text-xs font-semibold text-gray-500 uppercase">Acciones</th>
               </tr>
@@ -296,7 +319,7 @@ export default function ShippingPage() {
                 <MethodForm zones={zones} method={editingMethod} onSave={() => { setEditingMethod(null); loadMethods(); }} onCancel={() => setEditingMethod(null)} />
               )}
               {methods.length === 0 && !showMethodForm ? (
-                <tr><td colSpan={6} className="px-6 py-12 text-center text-gray-400 text-sm">
+                <tr><td colSpan={7} className="px-6 py-12 text-center text-gray-400 text-sm">
                   {zones.length === 0 ? 'Crea primero una zona de envío' : 'Sin métodos de envío'}
                 </td></tr>
               ) : methods.map(m => (

project/apps/admin/src/features/products/components/sections/PriceStockSection.tsx

@@ -49,12 +49,26 @@ export function PriceStockSection({ productId }: { productId: string }) {
   const [savingEan, setSavingEan] = useState(false);
   const [eanMsg, setEanMsg] = useState('');
 
+  // Peso y compra mínima (F-102)
+  const [unitWeightKg, setUnitWeightKg] = useState('1');
+  const [minPurchaseQty, setMinPurchaseQty] = useState('1');
+  const [savingProductMeta, setSavingProductMeta] = useState(false);
+  const [metaMsg, setMetaMsg] = useState('');
+
   useEffect(() => {
     taxApi.list().then(({ items }) => setTaxRates(items.filter((r) => r.active))).catch(() => {});
   }, []);
 
   useEffect(() => {
     let cancelled = false;
+    productsApi
+      .get(productId)
+      .then((product) => {
+        if (cancelled) return;
+        setUnitWeightKg(String((product as unknown as { unitWeightKg?: number }).unitWeightKg ?? 1));
+        setMinPurchaseQty(String((product as unknown as { minPurchaseQty?: number }).minPurchaseQty ?? 1));
+      })
+      .catch(() => {});
     productsApi
       .getVariants(productId)
       .then(async ({ items }) => {
@@ -177,6 +191,30 @@ export function PriceStockSection({ productId }: { productId: string }) {
     }
   };
 
+  const saveProductMeta = async () => {
+    const weight = parseFloat(unitWeightKg.replace(',', '.'));
+    const minQty = parseInt(minPurchaseQty, 10);
+    if (isNaN(weight) || weight <= 0 || weight > 1000) {
+      setMetaMsg('Peso inválido');
+      return;
+    }
+    if (isNaN(minQty) || minQty < 1 || minQty > 999) {
+      setMetaMsg('Compra mínima inválida');
+      return;
+    }
+    setSavingProductMeta(true);
+    setMetaMsg('');
+    try {
+      await productsApi.update(productId, { unitWeightKg: weight, minPurchaseQty: minQty });
+      setMetaMsg('✓');
+      setTimeout(() => setMetaMsg(''), 3000);
+    } catch {
+      setMetaMsg('Error');
+    } finally {
+      setSavingProductMeta(false);
+    }
+  };
+
   if (loadError) {
     return <div className="p-4 bg-red-50 border border-red-200 rounded-xl text-sm text-red-700">{loadError}</div>;
   }
@@ -297,6 +335,41 @@ export function PriceStockSection({ productId }: { productId: string }) {
         </div>
       </div>
 
+      <div className="grid grid-cols-2 lg:grid-cols-4 gap-4">
+        <div>
+          <label className="block text-xs font-semibold text-gray-600 mb-1">Peso unitario (kg)</label>
+          <input
+            type="text" inputMode="decimal" value={unitWeightKg}
+            onChange={(e) => setUnitWeightKg(e.target.value)}
+            onBlur={saveProductMeta}
+            onKeyDown={(e) => { if (e.key === 'Enter') saveProductMeta(); }}
+            disabled={savingProductMeta}
+            placeholder="1"
+            className="w-full px-3 py-2 border border-gray-300 rounded-xl text-sm focus:ring-2 focus:ring-[#2D6A4F] outline-none bg-white disabled:opacity-50"
+          />
+        </div>
+        <div>
+          <label className="block text-xs font-semibold text-gray-600 mb-1">Compra mínima (uds.)</label>
+          <div className="flex items-center gap-2">
+            <input
+              type="number" min={1} max={999} value={minPurchaseQty}
+              onChange={(e) => setMinPurchaseQty(e.target.value)}
+              onBlur={saveProductMeta}
+              onKeyDown={(e) => { if (e.key === 'Enter') saveProductMeta(); }}
+              disabled={savingProductMeta}
+              className="w-full px-3 py-2 border border-gray-300 rounded-xl text-sm focus:ring-2 focus:ring-[#2D6A4F] outline-none bg-white disabled:opacity-50"
+            />
+            {metaMsg && <span className={`text-xs shrink-0 ${metaMsg.startsWith('✓') ? 'text-green-600' : 'text-red-600'}`}>{metaMsg}</span>}
+          </div>
+        </div>
+        <div className="col-span-2 flex items-end">
+          <p className="text-xs text-gray-400">
+            El peso del pedido se calcula como cantidad × peso unitario y limita los métodos de envío disponibles.
+            La compra mínima bloquea en la tienda los pedidos por debajo de esa cantidad.
+          </p>
+        </div>
+      </div>
+
       {extraVariants > 0 && (
         <p className="text-xs text-amber-600">
           ⚠️ Este producto tiene {extraVariants} variante(s) heredada(s). Se está editando la principal.

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

@@ -295,7 +295,8 @@ export interface ShippingZone {
 }
 export interface ShippingMethod {
   id: string; zoneId: string; zoneName: string; name: string;
-  baseCostCents: number; freeShippingThresholdCents: number | null; description: string | null; active: boolean;
+  baseCostCents: number; freeShippingThresholdCents: number | null; description: string | null;
+  maxWeightKg: number | null; freeShippingMaxWeightKg: number | null; active: boolean;
 }
 export const shippingApi = {
   listZones: () => api.get<{ items: ShippingZone[] }>('/api/admin/shipping/zones'),
@@ -305,9 +306,9 @@ export const shippingApi = {
     api.patch('/api/admin/shipping/zones/' + id, data),
   deleteZone: (id: string) => api.delete<void>('/api/admin/shipping/zones/' + id),
   listMethods: () => api.get<{ items: ShippingMethod[] }>('/api/admin/shipping/methods'),
-  createMethod: (data: { zoneId: string; name: string; baseCostCents: number; freeShippingThresholdCents?: number | null; description?: string | null; active?: boolean }) =>
+  createMethod: (data: { zoneId: string; name: string; baseCostCents: number; freeShippingThresholdCents?: number | null; description?: string | null; maxWeightKg?: number | null; freeShippingMaxWeightKg?: number | null; active?: boolean }) =>
     api.post<{ id: string }>('/api/admin/shipping/methods', data),
-  updateMethod: (id: string, data: Partial<{ name: string; baseCostCents: number; freeShippingThresholdCents?: number | null; description?: string | null; active: boolean }>) =>
+  updateMethod: (id: string, data: Partial<{ name: string; baseCostCents: number; freeShippingThresholdCents?: number | null; description?: string | null; maxWeightKg?: number | null; freeShippingMaxWeightKg?: number | null; active: boolean }>) =>
     api.patch('/api/admin/shipping/methods/' + id, data),
   deleteMethod: (id: string) => api.delete<void>('/api/admin/shipping/methods/' + id),
 };