Implementación de duración de precio por producto y mejoras en cálculo de tarifas

Detalles:
- Se añadió PriceDurationDays a la entidad Product.
- Actualización de base de datos y repositorios para soportar la nueva propiedad.
- Ajuste en PricingService para calcular costos diarios basados en la duración del producto.
- Mejora en UI: el selector de días en ventas se adapta a la duración base del producto.
- Duración del precio ahora es opcional mediante un interruptor en el modal de producto.
- Corrección en DeleteAsync usando SQL dinámico para mayor seguridad.
- Cálculo de precio instantáneo al seleccionar el rubro sin requerir texto previo.

frontend/admin-panel/src/components/Products/ProductModal.tsx

@@ -31,6 +31,7 @@ export default function ProductModal({ product, companies, categories, allProduc
     categoryId: undefined,
     productTypeId: 4, // Default Physical
     basePrice: 0,
+    priceDurationDays: 1,
     taxRate: 21,
     sku: '',
     isActive: true
@@ -40,10 +41,12 @@ export default function ProductModal({ product, companies, categories, allProduc
   const [bundleComponents, setBundleComponents] = useState<ProductBundleComponent[]>([]);
   const [newComponentId, setNewComponentId] = useState<number>(0);
   const [loading, setLoading] = useState(false);
+  const [hasDuration, setHasDuration] = useState(false);
 
   useEffect(() => {
     if (product) {
       setFormData(product);
+      setHasDuration(product.priceDurationDays > 1);
       const type = PRODUCT_TYPES.find(t => t.id === product.productTypeId);
       if (type?.code === 'BUNDLE') {
         setIsBundle(true);
@@ -55,6 +58,13 @@ export default function ProductModal({ product, companies, categories, allProduc
   useEffect(() => {
     const type = PRODUCT_TYPES.find(t => t.id === formData.productTypeId);
     setIsBundle(type?.code === 'BUNDLE');
+
+    // Si es producto físico o combo, forzamos duración 1 (sin periodo)
+    if (formData.productTypeId === 4 || formData.productTypeId === 6) {
+      if (formData.priceDurationDays !== 1) {
+        setFormData(f => ({ ...f, priceDurationDays: 1 }));
+      }
+    }
   }, [formData.productTypeId]);
 
   const loadBundleComponents = async (productId: number) => {
@@ -188,6 +198,39 @@ export default function ProductModal({ product, companies, categories, allProduc
                   value={formData.basePrice} onChange={e => setFormData({ ...formData, basePrice: parseFloat(e.target.value) })} />
               </div>
 
+              {formData.productTypeId !== 4 && formData.productTypeId !== 6 && (
+                <div className="col-span-2 space-y-3">
+                  <div
+                    onClick={() => {
+                      const newValue = !hasDuration;
+                      setHasDuration(newValue);
+                      if (!newValue) setFormData({ ...formData, priceDurationDays: 1 });
+                    }}
+                    className={`flex items-center justify-between p-3 rounded-xl border-2 cursor-pointer transition-all ${hasDuration ? 'border-blue-500 bg-blue-50' : 'border-slate-100 bg-slate-50 opacity-60'
+                      }`}
+                  >
+                    <div className="flex flex-col">
+                      <span className="text-[10px] font-black text-slate-500 uppercase tracking-widest leading-none">Precio por Duración</span>
+                      <span className="text-[9px] text-slate-400 font-bold mt-1">Habilitar si el precio base cubre varios días</span>
+                    </div>
+                    <div className={`w-10 h-5 rounded-full relative transition-colors ${hasDuration ? 'bg-blue-600' : 'bg-slate-300'}`}>
+                      <div className={`absolute top-1 w-3 h-3 bg-white rounded-full transition-all ${hasDuration ? 'right-1' : 'left-1'}`} />
+                    </div>
+                  </div>
+
+                  {hasDuration && (
+                    <motion.div initial={{ opacity: 0, y: -10 }} animate={{ opacity: 1, y: 0 }} className="space-y-1.5 pl-2 border-l-2 border-blue-200 ml-4">
+                      <label className="text-[10px] font-black text-blue-500 uppercase tracking-widest ml-1">Cantidad de Días</label>
+                      <div className="relative">
+                        <input required type="number" min="2" className="w-full p-3 bg-blue-50/50 border-2 border-blue-100 rounded-xl outline-none focus:border-blue-500 font-black text-sm text-blue-600"
+                          value={formData.priceDurationDays} onChange={e => setFormData({ ...formData, priceDurationDays: Math.max(2, parseInt(e.target.value) || 2) })} />
+                        <span className="absolute right-3 top-1/2 -translate-y-1/2 text-[10px] font-black text-blue-300 uppercase">Días</span>
+                      </div>
+                    </motion.div>
+                  )}
+                </div>
+              )}
+
               <div className="space-y-1.5">
                 <label className="text-[10px] font-black text-slate-400 uppercase tracking-widest ml-1">Alicuota IVA (%)</label>
                 <select className="w-full p-3 bg-slate-50 border-2 border-slate-100 rounded-xl outline-none focus:border-blue-500 font-bold text-sm appearance-none"

frontend/admin-panel/src/types/Product.ts

@@ -8,6 +8,7 @@ export interface Product {
   sku?: string;
   externalId?: string;
   basePrice: number;
+  priceDurationDays: number;
   taxRate: number;
   currency: string;
   isActive: boolean;

frontend/counter-panel/src/components/POS/AdEditorModal.tsx

@@ -4,6 +4,8 @@ import { useDebounce } from '../../hooks/useDebounce';
 import api from '../../services/api';
 import clsx from 'clsx';
 import { processCategories, type FlatCategory } from '../../utils/categoryTreeUtils';
+import { productService } from '../../services/productService';
+import type { Product } from '../../types/Product';
 
 interface AdEditorModalProps {
   isOpen: boolean;
@@ -22,6 +24,7 @@ interface PricingResult {
 export default function AdEditorModal({ isOpen, onClose, onConfirm, clientId, productId }: AdEditorModalProps) {
   const [flatCategories, setFlatCategories] = useState<FlatCategory[]>([]);
   const [operations, setOperations] = useState<any[]>([]);
+  const [product, setProduct] = useState<Product | null>(null);
   const [loading, setLoading] = useState(false);
   const [calculating, setCalculating] = useState(false);
 
@@ -53,9 +56,21 @@ export default function AdEditorModal({ isOpen, onClose, onConfirm, clientId, pr
 
       const loadData = async () => {
         try {
-          const [catRes, opRes] = await Promise.all([api.get('/categories'), api.get('/operations')]);
+          const [catRes, opRes, prodData] = await Promise.all([
+            api.get('/categories'),
+            api.get('/operations'),
+            productService.getById(productId)
+          ]);
           setFlatCategories(processCategories(catRes.data));
           setOperations(opRes.data);
+          setProduct(prodData);
+
+          // Ajustar días iniciales según la duración del producto
+          if (prodData.priceDurationDays > 1) {
+            setDays(prodData.priceDurationDays);
+          } else {
+            setDays(3);
+          }
         } catch (e) {
           console.error("Error cargando configuración", e);
         }
@@ -66,7 +81,10 @@ export default function AdEditorModal({ isOpen, onClose, onConfirm, clientId, pr
 
   // Calculadora de Precio en Tiempo Real
   useEffect(() => {
-    if (!categoryId || !text) return;
+    if (!categoryId) {
+      setPricing({ totalPrice: 0, wordCount: 0, details: '' });
+      return;
+    }
 
     const calculate = async () => {
       setCalculating(true);
@@ -88,7 +106,7 @@ export default function AdEditorModal({ isOpen, onClose, onConfirm, clientId, pr
       }
     };
     calculate();
-  }, [debouncedText, categoryId, days, styles, startDate]);
+  }, [debouncedText, categoryId, days, styles, startDate, productId]);
 
   const handleSave = async () => {
     if (!categoryId || !operationId || !text) return alert("Complete los campos obligatorios");
@@ -260,18 +278,42 @@ export default function AdEditorModal({ isOpen, onClose, onConfirm, clientId, pr
                 />
               </div>
             </div>
+            {product?.productTypeId !== 4 && product?.productTypeId !== 6 && (
               <div className="col-span-1">
-              <label className="text-[10px] font-black text-blue-400 uppercase tracking-widest ml-1 mb-1 block">Cantidad Días</label>
+                <label className="text-[10px] font-black text-blue-400 uppercase tracking-widest ml-1 mb-1 block">
+                  {product && product.priceDurationDays > 1 ? `Cant. de Módulos (${product.priceDurationDays}d)` : 'Cantidad Días'}
+                </label>
                 <div className="flex items-center bg-white border border-blue-200 rounded-xl overflow-hidden h-[38px]">
-                <button onClick={() => setDays(Math.max(1, days - 1))} className="px-3 hover:bg-blue-50 text-blue-400 transition-colors">-</button>
+                  <button
+                    onClick={() => setDays(Math.max(product?.priceDurationDays || 1, days - (product?.priceDurationDays || 1)))}
+                    className="px-3 hover:bg-blue-50 text-blue-400 transition-colors"
+                  >
+                    -
+                  </button>
                   <input
                     type="number"
                     className="w-full text-center font-black text-slate-700 text-sm outline-none"
-                  value={days} onChange={e => setDays(parseInt(e.target.value) || 1)}
+                    value={days}
+                    onChange={e => {
+                      const val = parseInt(e.target.value) || 0;
+                      const step = product?.priceDurationDays || 1;
+                      // Redondear al múltiplo más cercano si es necesario, o simplemente dejarlo
+                      setDays(Math.max(step, val));
+                    }}
+                    step={product?.priceDurationDays || 1}
                   />
-                <button onClick={() => setDays(days + 1)} className="px-3 hover:bg-blue-50 text-blue-400 transition-colors">+</button>
+                  <button
+                    onClick={() => setDays(days + (product?.priceDurationDays || 1))}
+                    className="px-3 hover:bg-blue-50 text-blue-400 transition-colors"
+                  >
+                    +
+                  </button>
                 </div>
+                {product && product.priceDurationDays > 1 && (
+                  <p className="text-[9px] text-blue-400 font-bold mt-1 ml-1 uppercase">Mínimo: {product.priceDurationDays} días</p>
+                )}
               </div>
+            )}
             <div className="col-span-1 flex flex-col justify-center items-end">
               <span className="text-[9px] font-black text-slate-400 uppercase tracking-widest mb-0.5">Costo Estimado</span>
               <div className="text-2xl font-mono font-black text-slate-900">

frontend/counter-panel/src/pages/FastEntryPage.tsx

@@ -231,14 +231,22 @@ export default function FastEntryPage() {
     productService.getByCategory(parseInt(formData.categoryId))
       .then(prods => {
         setCategoryProducts(prods);
-        // Auto-seleccionar el primero si solo hay uno
+        if (prods.length > 0) setSelectedProduct(prods[0]);
-        if (prods.length === 1) setSelectedProduct(prods[0]);
         else setSelectedProduct(null);
       })
       .catch(console.error)
       .finally(() => setLoadingProducts(false));
   }, [formData.categoryId]);
 
+  // Ajustar días automáticamente al seleccionar un producto con duración especial
+  useEffect(() => {
+    if (selectedProduct && selectedProduct.priceDurationDays > 1) {
+      if (formData.days % selectedProduct.priceDurationDays !== 0 || formData.days < selectedProduct.priceDurationDays) {
+        setFormData(prev => ({ ...prev, days: selectedProduct.priceDurationDays }));
+      }
+    }
+  }, [selectedProduct]);
+
   const handleSubmit = useCallback(async () => {
     if (!validate()) return;
     setShowPaymentModal(true);
@@ -566,14 +574,38 @@ export default function FastEntryPage() {
                   />
                 </div>
               </div>
+              {selectedProduct?.productTypeId !== 4 && selectedProduct?.productTypeId !== 6 && (
                 <div className="col-span-2">
-                <label className="block text-[9px] font-black text-slate-500 uppercase mb-1 tracking-widest">Días</label>
+                  <label className="block text-[9px] font-black text-slate-500 uppercase mb-1 tracking-widest">
+                    {selectedProduct && selectedProduct.priceDurationDays > 1 ? `Días (Base ${selectedProduct.priceDurationDays})` : 'Días'}
+                  </label>
                   <div className="flex items-center bg-slate-50 rounded-lg border border-slate-200 overflow-hidden h-9">
-                  <button onClick={() => setFormData(f => ({ ...f, days: Math.max(1, f.days - 1) }))} className="px-2.5 hover:bg-slate-50 text-slate-400 font-bold transition-colors">-</button>
+                    <button
-                  <input type="number" className="w-full text-center font-black text-blue-600 outline-none bg-transparent text-sm" value={formData.days} onChange={e => setFormData({ ...formData, days: Math.max(1, parseInt(e.target.value) || 0) })} />
+                      onClick={() => setFormData(f => ({ ...f, days: Math.max(selectedProduct?.priceDurationDays || 1, f.days - (selectedProduct?.priceDurationDays || 1)) }))}
-                  <button onClick={() => setFormData(f => ({ ...f, days: f.days + 1 }))} className="px-2.5 hover:bg-slate-50 text-slate-400 font-bold transition-colors">+</button>
+                      className="px-2.5 hover:bg-slate-50 text-slate-400 font-bold transition-colors"
+                    >
+                      -
+                    </button>
+                    <input
+                      type="number"
+                      className="w-full text-center font-black text-blue-600 outline-none bg-transparent text-sm"
+                      value={formData.days}
+                      onChange={e => {
+                        const val = parseInt(e.target.value) || 0;
+                        const step = selectedProduct?.priceDurationDays || 1;
+                        setFormData({ ...formData, days: Math.max(step, val) });
+                      }}
+                      step={selectedProduct?.priceDurationDays || 1}
+                    />
+                    <button
+                      onClick={() => setFormData(f => ({ ...f, days: f.days + (selectedProduct?.priceDurationDays || 1) }))}
+                      className="px-2.5 hover:bg-slate-50 text-slate-400 font-bold transition-colors"
+                    >
+                      +
+                    </button>
                   </div>
                 </div>
+              )}
               <div className="col-span-5 relative" ref={clientWrapperRef}>
                 <label className="block text-[9px] font-black text-slate-500 uppercase mb-1 tracking-widest">Cliente / Razón Social</label>
                 <div className="relative h-9">

frontend/counter-panel/src/types/Product.ts

@@ -8,6 +8,7 @@ export interface Product {
   sku?: string;
   externalId?: string;
   basePrice: number;
+  priceDurationDays: number;
   taxRate: number;
   currency: string;
   isActive: boolean;

src/SIGCM.API/Controllers/ProductsController.cs

@@ -83,10 +83,6 @@ public class ProductsController : ControllerBase
     {
       return BadRequest(new { message = ex.Message });
     }
-    catch (Exception)
-    {
-      return StatusCode(500, new { message = "Error inesperado al intentar eliminar el producto." });
-    }
   }
 
   // Helper: Obtener lista de empresas para llenar el combo en el Frontend

src/SIGCM.Domain/Entities/Product.cs

@@ -12,6 +12,7 @@ public class Product
   public string? ExternalId { get; set; }
 
   public decimal BasePrice { get; set; }
+  public int PriceDurationDays { get; set; } = 1; // Días que cubre el precio base (ej: 30 para autos)
   public decimal TaxRate { get; set; } // 21.0, 10.5, etc.
   public string Currency { get; set; } = "ARS";
 

src/SIGCM.Infrastructure/Data/DbInitializer.cs

@@ -129,6 +129,11 @@ END
                 ALTER TABLE Products ADD CONSTRAINT FK_Products_Categories FOREIGN KEY (CategoryId) REFERENCES Categories(Id);
             END
 
+            IF NOT EXISTS(SELECT * FROM sys.columns WHERE Name = N'PriceDurationDays' AND Object_ID = Object_ID(N'Products'))
+            BEGIN
+                ALTER TABLE Products ADD PriceDurationDays INT NOT NULL DEFAULT 1;
+            END
+
             -- CategoryPricing Columns
             IF EXISTS(SELECT * FROM sys.columns WHERE Name = N'BasePrice' AND Object_ID = Object_ID(N'CategoryPricing'))
             BEGIN

src/SIGCM.Infrastructure/Repositories/ProductRepository.cs

@@ -73,8 +73,8 @@ public class ProductRepository : IProductRepository
   {
     using var conn = _db.CreateConnection();
     var sql = @"
-            INSERT INTO Products (CompanyId, ProductTypeId, CategoryId, Name, Description, SKU, BasePrice, TaxRate, IsActive)
+            INSERT INTO Products (CompanyId, ProductTypeId, CategoryId, Name, Description, SKU, BasePrice, PriceDurationDays, TaxRate, IsActive)
-            VALUES (@CompanyId, @ProductTypeId, @CategoryId, @Name, @Description, @SKU, @BasePrice, @TaxRate, @IsActive);
+            VALUES (@CompanyId, @ProductTypeId, @CategoryId, @Name, @Description, @SKU, @BasePrice, @PriceDurationDays, @TaxRate, @IsActive);
             SELECT CAST(SCOPE_IDENTITY() as int);";
     return await conn.QuerySingleAsync<int>(sql, product);
   }
@@ -84,7 +84,7 @@ public class ProductRepository : IProductRepository
     using var conn = _db.CreateConnection();
     var sql = @"
             UPDATE Products 
-            SET CategoryId = @CategoryId, Name = @Name, Description = @Description, BasePrice = @BasePrice, TaxRate = @TaxRate, IsActive = @IsActive
+            SET CategoryId = @CategoryId, Name = @Name, Description = @Description, BasePrice = @BasePrice, PriceDurationDays = @PriceDurationDays, TaxRate = @TaxRate, IsActive = @IsActive
             WHERE Id = @Id";
     await conn.ExecuteAsync(sql, product);
   }
@@ -191,9 +191,15 @@ public class ProductRepository : IProductRepository
   public async Task DeleteAsync(int id)
   {
     using var conn = _db.CreateConnection();
+
     // 1. Verificar si está siendo usado como componente de un combo
-    var usedInBundle = await conn.ExecuteScalarAsync<int>(
+    // Usamos IF OBJECT_ID para que sea robusto si la tabla no existe por algún motivo
-        "SELECT COUNT(1) FROM ProductBundles WHERE ChildProductId = @Id", new { Id = id });
+    var checkBundleSql = @"
+        IF OBJECT_ID('ProductBundles') IS NOT NULL
+            SELECT COUNT(1) FROM ProductBundles WHERE ChildProductId = @Id
+        ELSE
+            SELECT 0";
+    var usedInBundle = await conn.ExecuteScalarAsync<int>(checkBundleSql, new { Id = id });
 
     if (usedInBundle > 0)
     {
@@ -201,28 +207,31 @@ public class ProductRepository : IProductRepository
     }
 
     // 2. Verificar si tiene registros asociados (ej: Listings)
-    // Buscamos dinámicamente si existe la columna ProductId en Listings o si hay alguna tabla que lo use
+    // Usamos SQL dinámico con sp_executesql para evitar errores de compilación si la columna no existe
-    var hasSales = await conn.ExecuteScalarAsync<int>(@"
+    var checkSalesSql = @"
-        IF EXISTS (SELECT 1 FROM sys.columns WHERE Name = 'ProductId' AND Object_ID = Object_ID('Listings'))
+        IF EXISTS (SELECT 1 FROM sys.columns WHERE Name = 'ProductId' AND Object_ID = OBJECT_ID('Listings'))
         BEGIN
-            SELECT COUNT(1) FROM Listings WHERE ProductId = @Id
+            EXEC sp_executesql N'SELECT COUNT(1) FROM Listings WHERE ProductId = @Id', N'@Id INT', @Id
         END
         ELSE
         BEGIN
             SELECT 0
-        END", new { Id = id });
+        END";
+    
+    var hasSales = await conn.ExecuteScalarAsync<int>(checkSalesSql, new { Id = id });
 
     if (hasSales > 0)
     {
       throw new InvalidOperationException("No se puede eliminar el producto porque ya tiene ventas o registros asociados.");
     }
 
-    // 3. Eliminar registros permitidos
+    // 3. Eliminar registros permitidos (Precios e hijos de bundle si es un combo)
-    // Borramos precios históricos y relaciones de bundle (si es el padre)
+    await conn.ExecuteAsync(@"
-    await conn.ExecuteAsync("DELETE FROM ProductPrices WHERE ProductId = @Id", new { Id = id });
+        IF OBJECT_ID('ProductPrices') IS NOT NULL DELETE FROM ProductPrices WHERE ProductId = @Id;
-    await conn.ExecuteAsync("DELETE FROM ProductBundles WHERE ParentProductId = @Id", new { Id = id });
+        IF OBJECT_ID('ProductBundles') IS NOT NULL DELETE FROM ProductBundles WHERE ParentProductId = @Id;
+    ", new { Id = id });
 
-    // 4. Eliminar el producto
+    // 4. Eliminar el producto final
     await conn.ExecuteAsync("DELETE FROM Products WHERE Id = @Id", new { Id = id });
   }
 }

src/SIGCM.Infrastructure/Services/PricingService.cs

@@ -33,17 +33,23 @@ public class PricingService
         TotalPrice = 0,
         Details = "Producto no encontrado."
       };
-      productBasePrice = await _productRepo.GetCurrentPriceAsync(request.ProductId, request.StartDate == default ? DateTime.UtcNow : request.StartDate);
+      
+      decimal retrievedPrice = await _productRepo.GetCurrentPriceAsync(request.ProductId, request.StartDate == default ? DateTime.UtcNow : request.StartDate);
+      
+      // Si el precio es por X días (ej: 30), el costo diario es Precio / X
+      int duration = product.PriceDurationDays > 0 ? product.PriceDurationDays : 1;
+      productBasePrice = retrievedPrice / duration;
     }
 
     // 1. Obtener Reglas
     var pricing = await _repo.GetByCategoryIdAsync(request.CategoryId);
 
-    // Si no hay configuración para este rubro, devolvemos 0 o un default seguro
+    // Si no hay configuración para este rubro, devolvemos al menos el precio base del producto
     if (pricing == null) return new CalculatePriceResponse
     {
-      TotalPrice = 0,
+      TotalPrice = productBasePrice * request.Days,
-      Details = "No hay tarifas configuradas para este rubro."
+      BaseCost = productBasePrice * request.Days,
+      Details = "El rubro no tiene tarifas configuradas. Se aplica solo el precio base del producto."
     };
 
     // 2. Análisis del Texto