feat: agregar método para generar reporte de inventario en formato Excel

app/Http/Controllers/App/ExcelController.php

@@ -4,7 +4,9 @@
 
 use App\Http\Controllers\Controller;
 use App\Models\Client;
+use App\Models\Inventory;
 use App\Models\Sale;
+use App\Models\SaleDetail;
 use Illuminate\Http\Request;
 use PhpOffice\PhpSpreadsheet\Spreadsheet;
 use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
@@ -453,6 +455,253 @@ public function salesReport(Request $request)
         return response()->download($filePath, $fileName)->deleteFileAfterSend(true);
     }
 
+    /**
+     * Generar reporte Excel de inventario
+     */
+    public function inventoryReport(Request $request)
+    {
+        // 1. VALIDACIÓN
+        $request->validate([
+            'category_id' => 'nullable|exists:categories,id',
+            'with_serials_only' => 'nullable|boolean',
+            'low_stock_threshold' => 'nullable|integer|min:0',
+        ]);
+
+        // 2. CONSULTA DE INVENTARIO
+        $query = Inventory::with([
+            'category:id,name',
+            'price:inventory_id,retail_price',
+            'serials'
+        ])
+        ->when($request->category_id, function($q) use ($request) {
+            $q->where('category_id', $request->category_id);
+        })
+        ->when($request->with_serials_only, function($q) {
+            $q->where('track_serials', true);
+        })
+        ->when($request->low_stock_threshold, function($q) use ($request) {
+            $q->where('stock', '<=', $request->low_stock_threshold);
+        });
+
+        $inventories = $query->orderBy('name')->get();
+
+        if ($inventories->isEmpty()) {
+            return response()->json(['message' => 'No se encontraron productos'], 404);
+        }
+
+        // 3. MAPEO DE DATOS
+        $data = $inventories->map(function($inventory) {
+            // Cantidad vendida total
+            $quantitySold = SaleDetail::where('inventory_id', $inventory->id)
+                ->whereHas('sale', function($q) {
+                    $q->where('status', 'completed');
+                })
+                ->sum('quantity');
+
+            // Conteo de seriales
+            $serialsTotal = $inventory->serials->count();
+            $serialsAvailable = $inventory->serials->where('status', 'disponible')->count();
+            $serialsSold = $inventory->serials->where('status', 'vendido')->count();
+            $serialsReturned = $inventory->serials->where('status', 'devuelto')->count();
+
+            $price = $inventory->price?->retail_price ?? 0;
+            $totalSold = $quantitySold * $price;
+            $inventoryValue = $inventory->stock * $price;
+
+            return [
+                'sku' => $inventory->sku ?? 'N/A',
+                'name' => $inventory->name,
+                'category' => $inventory->category?->name ?? 'Sin categoría',
+                'stock' => $inventory->stock,
+                'quantity_sold' => $quantitySold,
+                'serials_total' => $serialsTotal,
+                'serials_available' => $serialsAvailable,
+                'serials_sold' => $serialsSold,
+                'serials_returned' => $serialsReturned,
+                'price' => (float) $price,
+                'total_sold' => $totalSold,
+                'inventory_value' => $inventoryValue,
+            ];
+        });
+
+        // 4. CONFIGURACIÓN EXCEL
+        $fileName = 'Reporte_Inventario_' . now()->format('Ymd_His') . '.xlsx';
+        $filePath = storage_path('app/temp/' . $fileName);
+        if (!file_exists(dirname($filePath))) mkdir(dirname($filePath), 0755, true);
+
+        $spreadsheet = new Spreadsheet();
+        $sheet = $spreadsheet->getActiveSheet();
+
+        // Fuente Global
+        $sheet->getParent()->getDefaultStyle()->getFont()->setName('Arial');
+        $sheet->getParent()->getDefaultStyle()->getFont()->setSize(10);
+
+        // Estilos Comunes
+        $styleBox = [
+            'borders' => ['allBorders' => ['borderStyle' => Border::BORDER_THIN, 'color' => ['rgb' => '000000']]],
+            'alignment' => ['horizontal' => Alignment::HORIZONTAL_CENTER, 'vertical' => Alignment::VERTICAL_CENTER]
+        ];
+        $styleLabel = [
+            'font' => ['size' => 12, 'bold' => true],
+            'alignment' => ['horizontal' => Alignment::HORIZONTAL_RIGHT, 'vertical' => Alignment::VERTICAL_CENTER]
+        ];
+        $styleTableHeader = [
+            'font' => ['bold' => true, 'size' => 10, 'color' => ['rgb' => 'FFFFFF']],
+            'fill' => ['fillType' => Fill::FILL_SOLID, 'startColor' => ['rgb' => '70AD47']],
+            'alignment' => ['horizontal' => Alignment::HORIZONTAL_CENTER, 'vertical' => Alignment::VERTICAL_CENTER, 'wrapText' => true],
+            'borders' => ['allBorders' => ['borderStyle' => Border::BORDER_THIN]]
+        ];
+
+        // --- ESTRUCTURA DEL DOCUMENTO ---
+        $lastCol = 'M';
+        $sheet->getRowDimension(2)->setRowHeight(10);
+        $sheet->getRowDimension(3)->setRowHeight(25);
+        $sheet->getRowDimension(5)->setRowHeight(30);
+
+        // --- TÍTULO PRINCIPAL ---
+        $sheet->mergeCells("A3:{$lastCol}3");
+        $sheet->setCellValue('A3', 'REPORTE DE INVENTARIO');
+        $sheet->getStyle('A3')->applyFromArray([
+            'font' => ['bold' => true, 'size' => 16, 'color' => ['rgb' => '000000']],
+            'alignment' => ['horizontal' => Alignment::HORIZONTAL_CENTER, 'vertical' => Alignment::VERTICAL_CENTER],
+        ]);
+
+        // --- INFORMACIÓN DE FECHA ---
+        $sheet->mergeCells('A5:B5');
+        $sheet->setCellValue('A5', 'FECHA:');
+        $sheet->getStyle('A5')->applyFromArray($styleLabel);
+
+        $sheet->mergeCells("C5:{$lastCol}5");
+        Carbon::setLocale('es');
+        $sheet->setCellValue('C5', ucfirst(now()->translatedFormat('l j \d\e F Y')));
+        $sheet->getStyle("C5:{$lastCol}5")->applyFromArray($styleBox);
+        $sheet->getStyle('C5')->getFont()->setSize(12);
+
+        // --- RESUMEN DE TOTALES ---
+        $totalProducts = $data->count();
+        $totalStock = $data->sum('stock');
+        $totalQuantitySold = $data->sum('quantity_sold');
+        $totalSoldValue = $data->sum('total_sold');
+        $totalInventoryValue = $data->sum('inventory_value');
+
+        $row = 7;
+        $sheet->setCellValue('A' . $row, 'TOTAL PRODUCTOS:');
+        $sheet->setCellValue('C' . $row, $totalProducts);
+        $sheet->setCellValue('D' . $row, 'STOCK TOTAL:');
+        $sheet->setCellValue('F' . $row, $totalStock);
+        $sheet->setCellValue('G' . $row, 'VENDIDOS:');
+        $sheet->setCellValue('H' . $row, $totalQuantitySold);
+        $sheet->setCellValue('I' . $row, 'TOTAL VENDIDO:');
+        $sheet->setCellValue('K' . $row, '$' . number_format($totalSoldValue, 2));
+        $sheet->setCellValue('L' . $row, 'VALOR INVENTARIO:');
+        $sheet->setCellValue('M' . $row, '$' . number_format($totalInventoryValue, 2));
+
+        $sheet->getStyle("A{$row}:{$lastCol}{$row}")->getFont()->setBold(true);
+        $sheet->getStyle('C' . $row)->getFont()->setSize(12)->getColor()->setRGB('70AD47');
+        $sheet->getStyle('F' . $row)->getFont()->setSize(12)->getColor()->setRGB('70AD47');
+        $sheet->getStyle('H' . $row)->getFont()->setSize(12)->getColor()->setRGB('2E75B6');
+        $sheet->getStyle('K' . $row)->getFont()->setSize(12)->getColor()->setRGB('FF6600');
+        $sheet->getStyle('M' . $row)->getFont()->setSize(12)->getColor()->setRGB('008000');
+
+        // --- ENCABEZADOS DE TABLA ---
+        $h = 9;
+        $headers = [
+            'A' => 'No.',
+            'B' => 'SKU',
+            'C' => 'NOMBRE',
+            'D' => 'CATEGORÍA',
+            'E' => "STOCK\nDISPONIBLE",
+            'F' => "CANTIDAD\nVENDIDA",
+            'G' => "SERIALES\nTOTALES",
+            'H' => "SERIALES\nDISPONIBLES",
+            'I' => "SERIALES\nVENDIDOS",
+            'J' => "SERIALES\nDEVUELTOS",
+            'K' => "PRECIO\nUNITARIO",
+            'L' => "TOTAL\nVENDIDO",
+            'M' => "VALOR\nINVENTARIO",
+        ];
+
+        foreach ($headers as $col => $text) {
+            $sheet->setCellValue("{$col}{$h}", $text);
+        }
+
+        $sheet->getStyle("A{$h}:{$lastCol}{$h}")->applyFromArray($styleTableHeader);
+        $sheet->getRowDimension($h)->setRowHeight(35);
+
+        // --- LLENADO DE DATOS ---
+        $row = 10;
+        $i = 1;
+
+        foreach ($data as $item) {
+            $sheet->setCellValue('A' . $row, $i);
+            $sheet->setCellValue('B' . $row, $item['sku']);
+            $sheet->setCellValue('C' . $row, $item['name']);
+            $sheet->setCellValue('D' . $row, $item['category']);
+            $sheet->setCellValue('E' . $row, $item['stock']);
+            $sheet->setCellValue('F' . $row, $item['quantity_sold']);
+            $sheet->setCellValue('G' . $row, $item['serials_total']);
+            $sheet->setCellValue('H' . $row, $item['serials_available']);
+            $sheet->setCellValue('I' . $row, $item['serials_sold']);
+            $sheet->setCellValue('J' . $row, $item['serials_returned']);
+            $sheet->setCellValue('K' . $row, '$' . number_format($item['price'], 2));
+            $sheet->setCellValue('L' . $row, '$' . number_format($item['total_sold'], 2));
+            $sheet->setCellValue('M' . $row, '$' . number_format($item['inventory_value'], 2));
+
+            // Estilos de fila
+            $sheet->getStyle("A{$row}:{$lastCol}{$row}")->applyFromArray([
+                'borders' => ['allBorders' => ['borderStyle' => Border::BORDER_THIN]],
+                'alignment' => ['vertical' => Alignment::VERTICAL_CENTER],
+                'font' => ['size' => 10]
+            ]);
+
+            // Centrados
+            $sheet->getStyle("A{$row}")->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER);
+            $sheet->getStyle("B{$row}")->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER);
+            $sheet->getStyle("E{$row}")->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER);
+            $sheet->getStyle("F{$row}")->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER);
+            $sheet->getStyle("G{$row}")->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER);
+            $sheet->getStyle("H{$row}")->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER);
+            $sheet->getStyle("I{$row}")->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER);
+            $sheet->getStyle("J{$row}")->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER);
+
+            // Color de stock bajo (si está configurado el threshold)
+            if ($request->low_stock_threshold && $item['stock'] <= $request->low_stock_threshold) {
+                $sheet->getStyle("E{$row}")->getFont()->getColor()->setRGB('FF0000');
+                $sheet->getStyle("E{$row}")->getFont()->setBold(true);
+            }
+
+            // Color alterno de filas
+            if ($i % 2 == 0) {
+                $sheet->getStyle("A{$row}:{$lastCol}{$row}")->getFill()
+                    ->setFillType(Fill::FILL_SOLID)
+                    ->getStartColor()->setRGB('F2F2F2');
+            }
+
+            $row++;
+            $i++;
+        }
+
+        // --- ANCHOS DE COLUMNA ---
+        $sheet->getColumnDimension('A')->setWidth(5);
+        $sheet->getColumnDimension('B')->setWidth(15);
+        $sheet->getColumnDimension('C')->setWidth(35);
+        $sheet->getColumnDimension('D')->setWidth(18);
+        $sheet->getColumnDimension('E')->setWidth(12);
+        $sheet->getColumnDimension('F')->setWidth(12);
+        $sheet->getColumnDimension('G')->setWidth(12);
+        $sheet->getColumnDimension('H')->setWidth(14);
+        $sheet->getColumnDimension('I')->setWidth(12);
+        $sheet->getColumnDimension('J')->setWidth(12);
+        $sheet->getColumnDimension('K')->setWidth(18);
+        $sheet->getColumnDimension('L')->setWidth(14);
+        $sheet->getColumnDimension('M')->setWidth(16);
+
+        $writer = new Xlsx($spreadsheet);
+        $writer->save($filePath);
+
+        return response()->download($filePath, $fileName)->deleteFileAfterSend(true);
+    }
+
     /**
      * Traducir método de pago
      */

database/seeders/RoleSeeder.php

@@ -129,6 +129,18 @@ public function run(): void
             $clientTierDestroy
         ] = $this->onCRUD('client-tiers', $clientTiersType, 'api');
 
+        // Permisos de Solicitudes de Factura
+        $invoiceRequestsType = PermissionType::firstOrCreate([
+            'name' => 'Solicitudes de factura'
+        ]);
+
+        $invoiceRequestIndex   = $this->onIndex('invoice-requests', 'Mostrar solicitudes', $invoiceRequestsType, 'api');
+        $invoiceRequestShow    = $this->onPermission('invoice-requests.show', 'Ver detalles', $invoiceRequestsType, 'api');
+        $invoiceRequestProcess = $this->onPermission('invoice-requests.process', 'Procesar solicitud', $invoiceRequestsType, 'api');
+        $invoiceRequestReject  = $this->onPermission('invoice-requests.reject', 'Rechazar solicitud', $invoiceRequestsType, 'api');
+        $invoiceRequestUpload  = $this->onPermission('invoice-requests.upload', 'Subir archivos de factura', $invoiceRequestsType, 'api');
+        $invoiceRequestStats   = $this->onPermission('invoice-requests.stats', 'Ver estadísticas', $invoiceRequestsType, 'api');
+
 
         // ==================== ROLES ====================
 
@@ -177,7 +189,13 @@ public function run(): void
             $clientTierIndex,
             $clientTierCreate,
             $clientTierEdit,
-            $clientTierDestroy
+            $clientTierDestroy,
+            $invoiceRequestIndex,
+            $invoiceRequestShow,
+            $invoiceRequestProcess,
+            $invoiceRequestReject,
+            $invoiceRequestUpload,
+            $invoiceRequestStats
         );
 
         //Operador PDV (solo permisos de operación de caja y ventas)
@@ -205,7 +223,9 @@ public function run(): void
             $clientTierIndex,
             $clientTierCreate,
             $clientTierEdit,
-            $clientTierDestroy
+            $clientTierDestroy,
+            // Solicitudes de factura (solo lectura)
+            $invoiceRequestIndex
         );
     }
 }

routes/api.php

@@ -78,6 +78,7 @@
         Route::get('products-without-movement', [ReportController::class, 'productsWithoutMovement']);
         Route::get('client-discounts/excel', [ExcelController::class, 'clientDiscountsReport']);
         Route::get('sales/excel', [ExcelController::class, 'salesReport']);
+        Route::get('inventory/excel', [ExcelController::class, 'inventoryReport']);
     });
 
     //CLIENTES