feat: agregar factor de conversión y ajustar gestión de stock en el carrito

src/components/POS/UnitEquivalenceSelector.vue

@@ -60,6 +60,7 @@ const confirmSelection = () => {
         unit_of_measure_id: selectedOption.value.unit_of_measure_id,
         unit_price: selectedOption.value.unit_price,
         unit_name: selectedOption.value.unit_of_measure_id ? selectedOption.value.unit_name : null,
+        conversion_factor: selectedOption.value.conversion_factor
     });
     selectedOption.value = null;
 };

src/pages/POS/Point.vue

@@ -209,7 +209,7 @@ const addToCart = async (product) => {
         // Si el producto ya está en el carrito (sin seriales), solo incrementar sin abrir selectores
         const existingItem = cart.items.find(i => i.item_key === 'p:' + product.id);
         if (existingItem && !existingItem.track_serials) {
-            if (existingItem.quantity < product.stock) {
+            if (existingItem.quantity < existingItem.max_stock) {
                 existingItem.quantity++;
                 window.Notify.success(`${product.name} agregado al carrito`);
             } else {
@@ -536,12 +536,21 @@ const handleConfirmSale = async (paymentData) => {
                     };
                 });
 
+                const unitMap = {};
+                cart.items.filter(i => !i.is_bundle && i.unit_of_measure_id).forEach(item => {
+                    unitMap[item.inventory_id] = {
+                        unit_name: item.unit_name,
+                        quantity: item.quantity
+                    };
+                });
+
                 // Generar ticket PDF con descarga automática e impresión
                 await ticketService.generateSaleTicket(response, {
                     businessName: 'HIKVISION DISTRIBUIDOR',
                     autoDownload: true,
                     autoPrint: false,
-                    bundleMap
+                    bundleMap,
+                    unitMap
                 });
 
                 window.Notify.success('Ticket generado e impreso correctamente');

src/services/ticketService.js

@@ -80,7 +80,8 @@ const ticketService = {
             businessName = 'HIKVISION DISTRIBUIDOR',
             autoDownload = true,
             autoPrint = false,
-            bundleMap = {}
+            bundleMap = {},
+            unitMap = {}
         } = options;
 
         // Detectar ubicación del usuario
@@ -322,14 +323,24 @@ const ticketService = {
             }
 
             // Cantidad y Precio
-            const quantity = item.quantity || 1;
+            const unitInfo = unitMap[item.inventory_id];
+            const displayQty = unitInfo?.quantity
+                ?? ((item.unit_of_measure_id && item.unit_quantity)
+                    ? parseFloat(item.unit_quantity)
+                    : (item.quantity || 1));
+            const unitAbbr = unitInfo?.unit_name
+                || (item.unit_of_measure_id
+                    ? (item.unit_of_measure?.abbreviation || item.unit_of_measure?.name || '')
+                    : '');
+            const qtyText = unitAbbr ? `${displayQty} ${unitAbbr}` : String(displayQty);
+
             const unitPrice = formatMoney(item.unit_price);
 
             doc.setFontSize(8);
             doc.setFont('helvetica', 'normal');
             doc.setTextColor(...blackColor);
 
-            doc.text(String(quantity), 52, yPosition, { align: 'center' });
+            doc.text(qtyText, 52, yPosition, { align: 'center' });
             doc.text(`$${unitPrice}`, rightMargin, yPosition, { align: 'right' });
 
             yPosition += 4;

src/stores/cart.js

@@ -68,6 +68,9 @@ const useCart = defineStore('cart', {
                     ? parseFloat(config.unit_price)
                     : parseFloat(product.price?.retail_price || 0);
 
+                const conversionFactor = parseFloat(config?.conversion_factor || 1);
+                const maxStock = conversionFactor !== 1 ? Math.floor(product.stock / conversionFactor) : product.stock;
+
                 // Agregar nuevo item
                 this.items.push({
                     item_key: key,
@@ -79,7 +82,7 @@ const useCart = defineStore('cart', {
                     quantity: 1,
                     unit_price: unitPrice,
                     tax_rate: parseFloat(product.price?.tax || 16),
-                    max_stock: product.stock,
+                    max_stock: maxStock,
                     // Campos para seriales
                     track_serials: product.track_serials || false,
                     serial_numbers: config?.serialNumbers || [],