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<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
declare(strict_types=1);

namespace Magento\Quote\Model\Cart;

/**
 * Create instances of errors on adding products to cart. Identify error code based on the message
 */
class AddProductsToCartError
{
    /**#@+
     * Error message codes
     */
    private const ERROR_PRODUCT_NOT_FOUND = 'PRODUCT_NOT_FOUND';
    private const ERROR_INSUFFICIENT_STOCK = 'INSUFFICIENT_STOCK';
    private const ERROR_NOT_SALABLE = 'NOT_SALABLE';
    private const ERROR_UNDEFINED = 'UNDEFINED';
    /**#@-*/

    /**
     * List of error messages and codes.
     */
    private const MESSAGE_CODES = [
        'Could not find a product with SKU' => self::ERROR_PRODUCT_NOT_FOUND,
        'The required options you selected are not available' => self::ERROR_NOT_SALABLE,
        'Product that you are trying to add is not available.' => self::ERROR_NOT_SALABLE,
        'This product is out of stock' => self::ERROR_INSUFFICIENT_STOCK,
        'There are no source items' => self::ERROR_NOT_SALABLE,
        'The fewest you may purchase is' => self::ERROR_INSUFFICIENT_STOCK,
        'The most you may purchase is' => self::ERROR_INSUFFICIENT_STOCK,
        'The requested qty is not available' => self::ERROR_INSUFFICIENT_STOCK,
    ];

    /**
     * Returns an error object
     *
     * @param string $message
     * @param int $cartItemPosition
     * @return Data\Error
     */
    public function create(string $message, int $cartItemPosition = 0): Data\Error
    {
        return new Data\Error(
            $message,
            $this->getErrorCode($message),
            $cartItemPosition
        );
    }

    /**
     * Get message error code.
     *
     * @param string $message
     * @return string
     */
    private function getErrorCode(string $message): string
    {
        foreach (self::MESSAGE_CODES as $codeMessage => $code) {
            if (false !== stripos($message, $codeMessage)) {
                return $code;
            }
        }

        /* If no code was matched, return the default one */
        return self::ERROR_UNDEFINED;
    }
}