45 lines
1.2 KiB
PHP
45 lines
1.2 KiB
PHP
<?php
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namespace App\Rules;
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use Closure;
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use Illuminate\Contracts\Validation\ValidationRule;
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use Illuminate\Support\Facades\DB;
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class ProductStockIsAvailable implements ValidationRule
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{
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/**
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* Check given request of items is available in stock
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*/
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public function __construct(
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public int $product_quantity
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) {}
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/**
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* Run the validation rule.
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*
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* @param \Closure(string): \Illuminate\Translation\PotentiallyTranslatedString $fail
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*/
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public function validate(string $attribute, mixed $value, Closure $fail): void
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{
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if (is_null($value) || ! is_int($value)) {
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return;
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}
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$product = DB::table('products')->where('id', $value)->select(['id', 'stock', 'security_stock'])->first();
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if (is_null($product)) {
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$fail(__('product_id is invalid'));
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return;
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}
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// Get the sellable stock
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$sellable_stock = ($product->security_stock) ? $product->stock - $product->security_stock : $product->stock;
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if ($this->product_quantity > $sellable_stock) {
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$fail(sprintf(':attribute (%s) too much requested, product stock is: %s', $this->product_quantity, $product->stock));
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}
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}
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}
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