feat: implement checkout service and payment processing integration

app/Domains/Purchase/Controllers/PurchaseController.php

@@ -10,7 +10,7 @@ use App\Domains\Tenant\Models\Tenant;
 use App\Http\Controllers\Controller;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
-use Illuminate\Support\Facades\DB;
+use App\Domains\Purchase\Services\CheckoutService;
 use Illuminate\Validation\ValidationException;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
@@ -28,28 +28,22 @@ class PurchaseController extends Controller
         )->response();
     }
 
-    public function store(StorePurchaseRequest $request, Tenant $tenant): JsonResponse
+    public function store(StorePurchaseRequest $request, Tenant $tenant, CheckoutService $checkoutService): JsonResponse
     {
         $data = $request->validated();
-        $items = $data['items'];
+        
+        $integrationCode = $data['integration_code'];
+        $paymentData = $data['payment_data'];
+        
+        unset($data['integration_code'], $data['payment_data']);
 
-        unset($data['items']);
-
-        $variants = $this->resolveTenantVariants($tenant, $items);
-        $purchaseItems = $this->buildPurchaseItemsPayload($items, $variants);
-
-        $purchase = DB::transaction(function () use ($request, $tenant, $data, $purchaseItems): Purchase {
-            /** @var Purchase $purchase */
-            $purchase = Purchase::query()->create([
-                ...$data,
-                'tenant_codigo' => $tenant->codigo,
-                'user_id' => $request->user()->id,
-            ]);
-
-            $purchase->items()->createMany($purchaseItems);
-
-            return $purchase->load(['items.variant.product', 'items.variant.definitions.productAttribute.attribute']);
-        });
+        $purchase = $checkoutService->processCheckout(
+            $tenant,
+            $request->user()->id,
+            $data,
+            $integrationCode,
+            $paymentData
+        );
 
         return PurchaseResource::make($purchase)->response()->setStatusCode(201);
     }
@@ -63,60 +57,7 @@ class PurchaseController extends Controller
         );
     }
 
-    /**
-     * @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();
-    }
 
     protected function resolveScopedPurchase(Tenant $tenant, int $userId, Purchase $purchase): Purchase
     {