feat: implement checkout service and payment processing integration

2026-07-03 15:37:26 -03:00
parent ee3be8d550
commit 1d94ff8885
6 changed files with 186 additions and 74 deletions
--- a/app/Domains/Purchase/Services/CheckoutService.php
+++ b/app/Domains/Purchase/Services/CheckoutService.php
@@ -0,0 +1,121 @@
+<?php
+
+namespace App\Domains\Purchase\Services;
+
+use App\Domains\Catalog\Models\ProductVariant;
+use App\Domains\Integration\Services\PaymentProviderFactory;
+use App\Domains\Integration\Services\TenantIntegrationService;
+use App\Domains\Purchase\Models\Purchase;
+use App\Domains\Tenant\Models\Tenant;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Validation\ValidationException;
+use Exception;
+
+class CheckoutService
+{
+    protected TenantIntegrationService $tenantIntegrationService;
+    protected PaymentProviderFactory $paymentProviderFactory;
+
+    public function __construct(
+        TenantIntegrationService $tenantIntegrationService,
+        PaymentProviderFactory $paymentProviderFactory
+    ) {
+        $this->tenantIntegrationService = $tenantIntegrationService;
+        $this->paymentProviderFactory = $paymentProviderFactory;
+    }
+
+    public function processCheckout(Tenant $tenant, int $userId, array $purchaseData, string $integrationCode, array $paymentData): Purchase
+    {
+        // 1. Obtener configuración del tenant
+        $tenantIntegration = $this->tenantIntegrationService->getTenantIntegration($tenant->codigo, $integrationCode);
+        
+        if (!$tenantIntegration) {
+            throw ValidationException::withMessages([
+                'integration_code' => "El tenant no tiene configurada la integración: {$integrationCode}",
+            ]);
+        }
+
+        // 2. Instanciar el proveedor de pago
+        $provider = $this->paymentProviderFactory->make($integrationCode);
+
+        // 3. Procesar el pago con las credenciales desencriptadas
+        $paymentResult = $provider->process($paymentData, $tenantIntegration->integration_data);
+
+        // 4. Preparar items de la compra
+        $items = $purchaseData['items'];
+        unset($purchaseData['items']);
+
+        $variants = $this->resolveTenantVariants($tenant, $items);
+        $purchaseItemsPayload = $this->buildPurchaseItemsPayload($items, $variants);
+
+        // 5. Crear la orden de compra
+        return DB::transaction(function () use ($tenant, $userId, $purchaseData, $purchaseItemsPayload, $paymentResult): Purchase {
+            /** @var Purchase $purchase */
+            $purchase = Purchase::query()->create([
+                ...$purchaseData,
+                'tenant_codigo' => $tenant->codigo,
+                'user_id' => $userId,
+                // TODO: En un futuro se puede guardar info de $paymentResult en la base de datos (ej: payment_id, status)
+            ]);
+
+            $purchase->items()->createMany($purchaseItemsPayload);
+
+            return $purchase->load(['items.variant.product', 'items.variant.definitions.productAttribute.attribute']);
+        });
+    }
+
+    /**
+     * @param  array<int, array<string, mixed>>  $items
+     * @return \Illuminate\Support\Collection<int, ProductVariant>
+     */
+    protected function resolveTenantVariants(Tenant $tenant, array $items)
+    {
+        $variantIds = collect($items)
+            ->pluck('producto_variante_id')
+            ->filter()
+            ->map(static fn (mixed $id): int => (int) $id)
+            ->unique()
+            ->values();
+
+        $variants = ProductVariant::query()
+            ->with('product')
+            ->whereIn('id', $variantIds)
+            ->whereHas('product', fn ($query) => $query->where('tenant_codigo', $tenant->codigo))
+            ->get()
+            ->keyBy('id');
+
+        if ($variants->count() !== $variantIds->count()) {
+            throw ValidationException::withMessages([
+                'items' => 'One or more product variants do not belong to the tenant.',
+            ]);
+        }
+
+        return $variants;
+    }
+
+    /**
+     * @param  array<int, array<string, mixed>>  $items
+     * @param  \Illuminate\Support\Collection<int, ProductVariant>  $variants
+     * @return array<int, array<string, mixed>>
+     */
+    protected function buildPurchaseItemsPayload(array $items, $variants): array
+    {
+        return collect($items)
+            ->map(function (array $item) use ($variants): array {
+                /** @var ProductVariant $variant */
+                $variant = $variants->get((int) $item['producto_variante_id']);
+                $quantity = (int) $item['cantidad'];
+                $unitPrice = (float) ($variant->product?->precio ?? 0);
+
+                return [
+                    'producto_variante_id' => $variant->getKey(),
+                    'cantidad' => $quantity,
+                    'precio_unitario' => $unitPrice,
+                    'discount_total' => null,
+                    'tax_total' => null,
+                    'total' => $unitPrice * $quantity,
+                ];
+            })
+            ->all();
+    }
+}