¨4.0.1¨

Modules/Cart/Http/Middleware/CheckItemStock.php

@@ -0,0 +1,130 @@
+<?php
+
+namespace Modules\Cart\Http\Middleware;
+
+use Closure;
+use Modules\Cart\CartItem;
+use Illuminate\Http\Request;
+use Modules\Cart\Facades\Cart;
+use Modules\Product\Entities\Product;
+use Modules\FlashSale\Entities\FlashSale;
+use Modules\Product\Entities\ProductVariant;
+
+class CheckItemStock
+{
+    private CartItem|null $cartItem;
+    private Product $product;
+    private ProductVariant|null $variant;
+    private Product|ProductVariant $item;
+
+
+    public function __construct()
+    {
+        if (request()->routeIs('cart.items.update')) {
+            $this->cartItem = Cart::items()->get(request('cartItemId'));
+            $this->product = $this->cartItem->product;
+            $this->variant = $this->cartItem->variant;
+        }
+
+        if (request()->routeIs('cart.items.store')) {
+            $this->product = request('product_id') ? $this->getProduct(request('product_id')) : null;
+            $this->variant = request('variant_id') ? $this->getVariant(request('variant_id')) : null;
+        }
+
+        $this->item = $this->variant ?? $this->product;
+    }
+
+
+    /**
+     * Handle an incoming request.
+     *
+     * @param Request $request
+     * @param Closure $next
+     *
+     * @return mixed
+     */
+    public function handle(Request $request, Closure $next): mixed
+    {
+        if ($this->item->isOutOfStock()) {
+            abort(400, trans('cart::messages.out_of_stock'));
+        }
+
+
+        if (!$this->hasFlashSaleStock()) {
+            abort(400, trans('cart::messages.not_have_enough_quantity_in_stock', [
+                'stock' => FlashSale::remainingQty($this->product),
+            ]));
+        }
+
+
+        if (!$this->hasStock()) {
+            abort(400, trans('cart::messages.not_have_enough_quantity_in_stock', [
+                'stock' => $this->item->qty,
+            ]));
+        }
+
+        return $next($request);
+    }
+
+
+    private function getProduct($id)
+    {
+        return Product::withName()
+            ->addSelect('id', 'in_stock', 'manage_stock', 'qty')
+            ->where('id', $id)
+            ->firstOrFail();
+    }
+
+
+    private function getVariant($id)
+    {
+        return ProductVariant::addSelect('id', 'in_stock', 'manage_stock', 'qty')
+            ->where('id', $id)
+            ->firstOrFail();
+    }
+
+
+    private function hasFlashSaleStock(): bool
+    {
+        if (!FlashSale::contains($this->product)) {
+            return true;
+        }
+
+        $remainingQty = FlashSale::remainingQty($this->product);
+
+        $cartItem = Cart::items()->get(request('cartItemId'));
+
+        if ($cartItem) {
+            $addedCartQty = Cart::addedQty($cartItem);
+            // Exclude current cart item quantity from the total added cart quantity
+            // So, that current quantity is not added with the updated quantity.
+            $addedCartQty -= $cartItem->qty;
+
+            return ($remainingQty - $addedCartQty) >= request('qty');
+        }
+
+        return $remainingQty >= request('qty');
+    }
+
+
+    private function hasStock(): bool
+    {
+        if (!$this->item->manage_stock) {
+            return true;
+        }
+
+        $cartItem = Cart::items()->get(request('cartItemId'));
+
+        if ($cartItem) {
+            $addedCartQty = Cart::addedQty($cartItem);
+
+            // Exclude current cart item quantity from the total added cart quantity
+            // So, that current quantity is not added with the updated quantity.
+            $addedCartQty -= $cartItem->qty;
+
+            return ($cartItem->item->qty - $addedCartQty) >= request('qty');
+        }
+
+        return $this->item->qty >= request('qty');
+    }
+}