refactor(cart): own checkout item editing

app/Domains/Cart/Controllers/CartController.php

@@ -2,6 +2,7 @@
 
 namespace App\Domains\Cart\Controllers;
 
+use App\Domains\Cart\Models\Cart;
 use App\Domains\Cart\Models\CartItem;
 use App\Domains\Cart\Requests\AddCartItemRequest;
 use App\Domains\Cart\Requests\UpdateCartItemQuantityRequest;
@@ -77,6 +78,46 @@ class CartController extends Controller
         ]);
     }
 
+    public function updateCheckoutItem(
+        UpdateCartItemQuantityRequest $request,
+        Tenant $tenant,
+        Cart $cart,
+        CartItem $cartItem,
+    ): CartResource {
+        $updatesVariant = $request->exists('variant_id');
+
+        return CartResource::make(
+            $this->cartService->updateCheckoutItem(
+                $tenant,
+                $request,
+                $cart,
+                $cartItem->getKey(),
+                (int) $request->validated('cantidad'),
+                $updatesVariant
+                    ? ($request->validated('variant_id') !== null
+                        ? (int) $request->validated('variant_id')
+                        : null)
+                    : $cartItem->variant_id,
+                $updatesVariant,
+            ),
+        )->additional([
+            'code' => $updatesVariant ? 'cart.item_updated' : 'cart.quantity_updated',
+            'message' => $updatesVariant
+                ? __('api.cart.item_updated')
+                : __('api.cart.quantity_updated'),
+        ]);
+    }
+
+    public function prepareCheckoutEditing(
+        Request $request,
+        Tenant $tenant,
+        Cart $cart,
+    ): CartResource {
+        return CartResource::make(
+            $this->cartService->prepareCheckoutEditing($tenant, $request, $cart),
+        );
+    }
+
     public function removeItem(Request $request, Tenant $tenant, CartItem $cartItem): CartResource
     {
         return CartResource::make(

app/Domains/Cart/Models/Cart.php

@@ -143,6 +143,7 @@ class Cart extends Model
         int $quantity,
         ?int $variantId = null,
         bool $updateVariant = false,
+        ?int $excludedPurchaseId = null,
     ): CartItem {
         if ($quantity <= 0) {
             throw ValidationException::withMessages([
@@ -155,6 +156,7 @@ class Cart extends Model
             $quantity,
             $variantId,
             $updateVariant,
+            $excludedPurchaseId,
         ): CartItem {
             /** @var CartItem $item */
             $item = $this->items()
@@ -182,6 +184,7 @@ class Cart extends Model
                 $this->assertUserPurchaseLimit(
                     $nextSelection,
                     $otherVariantsQuantity + $quantity,
+                    $excludedPurchaseId,
                 );
 
                 app(StockReservationService::class)->release($item, $currentSelection, $item->cantidad);
@@ -228,6 +231,7 @@ class Cart extends Model
                 $this->assertUserPurchaseLimit(
                     $currentSelection,
                     $otherVariantsQuantity + $quantity,
+                    $excludedPurchaseId,
                 );
             }
 
@@ -350,6 +354,7 @@ class Cart extends Model
     private function assertUserPurchaseLimit(
         CatalogItem|Variant $selectedItem,
         int $cartQuantity,
+        ?int $excludedPurchaseId = null,
     ): void {
         if ($this->user_id === null) {
             return;
@@ -363,6 +368,7 @@ class Cart extends Model
             $catalogItem,
             $this->user_id,
             $cartQuantity,
+            $excludedPurchaseId,
             field: 'cantidad',
         );
     }

app/Domains/Cart/Services/CartService.php

@@ -4,15 +4,23 @@ namespace App\Domains\Cart\Services;
 
 use App\Domains\Auth\Models\User;
 use App\Domains\Cart\Models\Cart;
+use App\Domains\Catalog\Services\StockReservationService;
+use App\Domains\Purchase\Models\Purchase;
 use App\Domains\Tenant\Models\Tenant;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Auth;
+use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Str;
+use Illuminate\Validation\ValidationException;
 use Symfony\Component\HttpFoundation\Cookie;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 class CartService
 {
+    public function __construct(
+        private readonly StockReservationService $reservations,
+    ) {}
+
     public function show(Tenant $tenant, Request $request): Cart
     {
         $resolvedIdentity = $this->resolveIdentity($request);
@@ -66,6 +74,139 @@ class CartService
         return $this->loadCart($cart);
     }
 
+    public function updateCheckoutItem(
+        Tenant $tenant,
+        Request $request,
+        Cart $cart,
+        int $cartItemId,
+        int $quantity,
+        ?int $variantId,
+        bool $updateVariant,
+    ): Cart {
+        $user = $request->user() ?? Auth::guard('sanctum')->user();
+
+        if (! $user instanceof User) {
+            throw new NotFoundHttpException('Checkout cart not found.');
+        }
+
+        return DB::transaction(function () use (
+            $tenant,
+            $user,
+            $cart,
+            $cartItemId,
+            $quantity,
+            $variantId,
+            $updateVariant,
+        ): Cart {
+            /** @var Purchase|null $purchase */
+            $purchase = Purchase::query()
+                ->where('cart_id', $cart->getKey())
+                ->where('tenant_codigo', $tenant->codigo)
+                ->where('user_id', $user->getKey())
+                ->where('status', Purchase::STATUS_CREATED)
+                ->whereDoesntHave('items')
+                ->lockForUpdate()
+                ->first();
+
+            if ($purchase === null) {
+                throw new NotFoundHttpException('Checkout cart not found.');
+            }
+
+            if ($purchase->expires_at !== null && $purchase->expires_at->isPast()) {
+                throw ValidationException::withMessages([
+                    'cart' => __('api.purchase.not_editable'),
+                ]);
+            }
+
+            /** @var Cart|null $checkoutCart */
+            $checkoutCart = Cart::query()
+                ->whereKey($cart->getKey())
+                ->where('tenant_codigo', $tenant->codigo)
+                ->where('user_id', $user->getKey())
+                ->where('status', 'checkout')
+                ->lockForUpdate()
+                ->first();
+
+            if ($checkoutCart === null) {
+                throw new NotFoundHttpException('Checkout cart not found.');
+            }
+
+            $checkoutCart->updateItem(
+                $cartItemId,
+                $quantity,
+                $variantId,
+                $updateVariant,
+                $purchase->getKey(),
+            );
+            $purchase->update(['total' => $checkoutCart->getTotalAmount()]);
+
+            return $this->loadCart($checkoutCart);
+        });
+    }
+
+    public function prepareCheckoutEditing(
+        Tenant $tenant,
+        Request $request,
+        Cart $cart,
+    ): Cart {
+        $user = $request->user() ?? Auth::guard('sanctum')->user();
+
+        if (! $user instanceof User) {
+            throw new NotFoundHttpException('Checkout cart not found.');
+        }
+
+        return DB::transaction(function () use ($tenant, $user, $cart): Cart {
+            /** @var Purchase|null $purchase */
+            $purchase = Purchase::query()
+                ->where('cart_id', $cart->getKey())
+                ->where('tenant_codigo', $tenant->codigo)
+                ->where('user_id', $user->getKey())
+                ->whereIn('status', [
+                    Purchase::STATUS_CREATED,
+                    Purchase::STATUS_PENDING_PAYMENT,
+                ])
+                ->whereDoesntHave('items')
+                ->lockForUpdate()
+                ->first();
+
+            if ($purchase === null) {
+                throw new NotFoundHttpException('Checkout cart not found.');
+            }
+
+            if ($purchase->expires_at !== null && $purchase->expires_at->isPast()) {
+                throw ValidationException::withMessages([
+                    'cart' => __('api.purchase.not_editable'),
+                ]);
+            }
+
+            /** @var Cart|null $checkoutCart */
+            $checkoutCart = Cart::query()
+                ->whereKey($cart->getKey())
+                ->where('tenant_codigo', $tenant->codigo)
+                ->where('user_id', $user->getKey())
+                ->where('status', 'checkout')
+                ->lockForUpdate()
+                ->first();
+
+            if ($checkoutCart === null) {
+                throw new NotFoundHttpException('Checkout cart not found.');
+            }
+
+            $purchase->telepagosQr()->delete();
+            $purchase->update([
+                'status' => Purchase::STATUS_CREATED,
+                'payment_method' => null,
+                'transfer_payer_dni' => null,
+                'expires_at' => now()->addMinutes(
+                    max(1, (int) config('purchase.checkout_expiration_minutes', 30)),
+                ),
+            ]);
+            $this->reservations->syncPurchaseExpiration($purchase);
+
+            return $this->loadCart($checkoutCart);
+        });
+    }
+
     public function removeItem(Tenant $tenant, Request $request, int $cartItemId): Cart
     {
         $identity = $this->requireIdentity($request);

app/Domains/Cart/routes/api.php

@@ -10,3 +10,10 @@ Route::prefix('tenants/{tenant:codigo}')
         Route::patch('cart/items/{cartItem}', [CartController::class, 'updateItemQuantity']);
         Route::delete('cart/items/{cartItem}', [CartController::class, 'removeItem']);
     });
+
+Route::prefix('tenants/{tenant:codigo}')
+    ->middleware('auth:sanctum')
+    ->group(function (): void {
+        Route::post('checkout-carts/{cart}/edit', [CartController::class, 'prepareCheckoutEditing']);
+        Route::patch('checkout-carts/{cart}/items/{cartItem}', [CartController::class, 'updateCheckoutItem']);
+    });