104 lines
3.1 KiB
PHP
104 lines
3.1 KiB
PHP
<?php
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namespace Modules\Cart\Http\Middleware;
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use Closure;
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use Illuminate\Http\Request;
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use Modules\Cart\Facades\Cart;
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use Modules\Product\Entities\Product;
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use Modules\FlashSale\Entities\FlashSale;
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class CheckProductIsInStock
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{
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/**
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* Handle an incoming request.
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*
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* @param \Illuminate\Http\Request $request
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* @param \Closure $next
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* @return mixed
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*/
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public function handle(Request $request, Closure $next)
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{
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$product = Product::withName()
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->addSelect('id', 'in_stock', 'manage_stock', 'qty')
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->where('id', $this->getProductId($request))
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->firstOrFail();
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if ($product->isOutOfStock()) {
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abort(400, trans('cart::messages.out_of_stock'));
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}
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if (! $this->hasFlashSaleStock($product, $request)) {
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abort(400, trans('cart::messages.not_have_enough_quantity_in_stock', [
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'stock' => FlashSale::remainingQty($product),
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]));
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}
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if (! $this->hasStock($product, $request)) {
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abort(400, trans('cart::messages.not_have_enough_quantity_in_stock', [
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'stock' => $product->qty,
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]));
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}
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return $next($request);
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}
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private function getProductId(Request $request)
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{
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if ($request->routeIs('cart.items.store')) {
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return $request->product_id;
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}
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$cartItem = $this->getCartItemForUpdateRequest($request);
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if (! is_null($cartItem)) {
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return $cartItem->product->id;
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}
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}
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private function getCartItemForUpdateRequest(Request $request)
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{
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return Cart::items()->get($request->route()->parameter('cartItemId'));
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}
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private function hasFlashSaleStock(Product $product, Request $request)
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{
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if (! FlashSale::contains($product)) {
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return true;
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}
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$remainingQty = FlashSale::remainingQty($product);
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$addedCartQty = Cart::addedQty($product->id);
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// Exclude current cart item quantity from the total added cart quantity
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// So, that current quantity is not added with the updated quantity.
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$addedCartQty -= $this->currentCartItemQuantity($request);
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return ($remainingQty - $addedCartQty) >= $request->qty;
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}
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private function hasStock(Product $product, Request $request)
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{
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if (! $product->manage_stock) {
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return true;
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}
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$addedCartQty = Cart::addedQty($product->id);
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// Exclude current cart item quantity from the total added cart quantity
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// So, that current quantity is not added with the updated quantity.
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$addedCartQty -= $this->currentCartItemQuantity($request);
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return ($product->qty - $addedCartQty) >= $request->qty;
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}
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private function currentCartItemQuantity(Request $request)
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{
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if ($request->routeIs('cart.items.update')) {
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return $this->getCartItemForUpdateRequest($request)->qty;
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}
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return 0;
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}
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}
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