FM / Adapter

/home/sharedstore/public_html/prestashop.sharedstore.ma/src/Adapter/

/home/sharedstore/public_html/prestashop.sharedstore.ma/src/Adapter

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Edit: /home/sharedstore/public_html/prestashop.sharedstore.ma/src/Adapter/ContextStateManager.php (10336B)

<?php
/**
 * Copyright since 2007 PrestaShop SA and Contributors
 * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.md.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to https://devdocs.prestashop.com/ for more information.
 *
 * @author    PrestaShop SA and Contributors <contact@prestashop.com>
 * @copyright Since 2007 PrestaShop SA and Contributors
 * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 */

declare(strict_types=1);

namespace PrestaShop\PrestaShop\Adapter;

use Cart;
use Context;
use Country;
use Currency;
use Customer;
use Language;
use Shop;

/**
 * Allows manipulating context state.
 * This was adapted for specific broken legacy use cases when the previous state of context must be restored after some actions.
 *
 * e.g. order creation from back office.
 *  Legacy requires Context properties (currency, country etc.) instead of using cart properties
 *  so some context props must be changed for a while and then restored to previous state.
 */
final class ContextStateManager
{
    private const MANAGED_FIELDS = [
        'cart',
        'country',
        'currency',
        'language',
        'customer',
        'shop',
        'shopContext',
    ];

/**
     * @var LegacyContext
     */
    private $legacyContext;

/**
     * @var array|null
     */
    private $contextFieldsStack = null;

/**
     * @param LegacyContext $legacyContext
     */
    public function __construct(LegacyContext $legacyContext)
    {
        $this->legacyContext = $legacyContext;
    }

/**
     * @return Context
     */
    public function getContext(): Context
    {
        return $this->legacyContext->getContext();
    }

/**
     * Sets context cart and saves previous value
     *
     * @param Cart|null $cart
     *
     * @return $this
     */
    public function setCart(?Cart $cart): self
    {
        $this->saveContextField('cart');
        $this->getContext()->cart = $cart;

return $this;
    }

/**
     * Sets context country and saves previous value
     *
     * @param Country|null $country
     *
     * @return $this
     */
    public function setCountry(?Country $country): self
    {
        $this->saveContextField('country');
        $this->getContext()->country = $country;

return $this;
    }

/**
     * Sets context currency and saves previous value
     *
     * @param Currency|null $currency
     *
     * @return $this
     */
    public function setCurrency(?Currency $currency): self
    {
        $this->saveContextField('currency');
        $this->getContext()->currency = $currency;

return $this;
    }

/**
     * Sets context language and saves previous value
     *
     * @param Language|null $language
     *
     * @return $this
     */
    public function setLanguage(?Language $language): self
    {
        $this->saveContextField('language');
        $this->getContext()->language = $language;
        if ($language) {
            $this->getContext()->getTranslator()->setLocale($language->locale);
        }

return $this;
    }

/**
     * Sets context customer and saves previous value
     *
     * @param Customer|null $customer
     *
     * @return $this
     */
    public function setCustomer(?Customer $customer): self
    {
        $this->saveContextField('customer');
        $this->getContext()->customer = $customer;

return $this;
    }

/**
     * Sets context shop and saves previous value
     *
     * @param Shop $shop
     *
     * @return $this
     *
     * @throws \PrestaShopException
     */
    public function setShop(Shop $shop): self
    {
        $this->saveContextField('shop');
        $this->getContext()->shop = $shop;
        Shop::setContext(Shop::CONTEXT_SHOP, $shop->id);

return $this;
    }

/**
     * Sets context shop and saves previous value
     *
     * @param int $shopContext
     * @param int|null $shopContextId
     *
     * @return $this
     *
     * @throws \PrestaShopException
     */
    public function setShopContext(int $shopContext, ?int $shopContextId = null): self
    {
        $this->saveContextField('shopContext');
        if ($shopContext === Shop::CONTEXT_SHOP) {
            $this->getContext()->shop = new Shop($shopContextId);
        }
        Shop::setContext($shopContext, $shopContextId);

return $this;
    }

/**
     * Restores context to a state before changes
     *
     * @return self
     */
    public function restorePreviousContext(): self
    {
        $stackFields = array_keys($this->contextFieldsStack[$this->getCurrentStashIndex()]);
        foreach ($stackFields as $fieldName) {
            $this->restoreContextField($fieldName);
        }
        $this->removeLastSavedContext();

return $this;
    }

/**
     * Saves the current overridden fields in the context, allowing you to set new values to the
     * current Context. Next time you call restorePreviousContext the context will be refilled with
     * the values that were saved during this call.
     *
     * This is useful if several services use the ContextStateManager, this way if every service
     * saved the context before modifying it there is no risk of removing previous modifications
     * when you restore the context, because the different states have been stacked.
     *
     * @return $this
     */
    public function saveCurrentContext(): self
    {
        // No context field has been overridden yet so no need to save/stack it
        if (null === $this->contextFieldsStack) {
            return $this;
        }

// Saves all the fields that have not been overridden
        foreach (self::MANAGED_FIELDS as $contextField) {
            $this->saveContextField($contextField);
        }

// Add a new empty layer
        $this->contextFieldsStack[] = [];

return $this;
    }

/**
     * Return the stack of modified fields
     * If it's null, no context field has been overridden
     *
     * @return array|null
     */
    public function getContextFieldsStack(): ?array
    {
        return $this->contextFieldsStack;
    }

/**
     * Save context field into local array
     *
     * @param string $fieldName
     */
    private function saveContextField(string $fieldName)
    {
        $currentStashIndex = $this->getCurrentStashIndex();
        // NOTE: array_key_exists important here, isset cannot be used because it would not detect if null is stored
        if (!array_key_exists($fieldName, $this->contextFieldsStack[$currentStashIndex])) {
            switch ($fieldName) {
                case 'shop':
                case 'shopContext':
                    $this->contextFieldsStack[$currentStashIndex]['shop'] = $this->getContext()->shop;
                    $this->contextFieldsStack[$currentStashIndex]['shopContext'] = Shop::getContext();
                    break;
                default:
                    $this->contextFieldsStack[$currentStashIndex][$fieldName] = $this->getContext()->$fieldName;
            }
        }
    }

/**
     * Restores context saved value, and remove save value from local array
     *
     * @param string $fieldName
     */
    private function restoreContextField(string $fieldName): void
    {
        $currentStashIndex = $this->getCurrentStashIndex();
        // NOTE: array_key_exists important here, isset cannot be used because it would not detect if null is stored
        if (array_key_exists($fieldName, $this->contextFieldsStack[$currentStashIndex])) {
            if ('shop' === $fieldName) {
                $this->restoreShopContext($currentStashIndex);
            }
            if ('language' === $fieldName && $this->contextFieldsStack[$currentStashIndex][$fieldName] instanceof Language) {
                $this->getContext()->getTranslator()->setLocale($this->contextFieldsStack[$currentStashIndex][$fieldName]->locale);
            }
            $this->getContext()->$fieldName = $this->contextFieldsStack[$currentStashIndex][$fieldName];
            unset($this->contextFieldsStack[$currentStashIndex][$fieldName]);
        }
    }

/**
     * Returns the index of the current stack
     *
     * @return int
     */
    private function getCurrentStashIndex(): int
    {
        // If this is the first time the index is needed we need to init the stack
        if (null === $this->contextFieldsStack) {
            $this->contextFieldsStack = [[]];
        }

return array_key_last($this->contextFieldsStack);
    }

/**
     * Restore the ShopContext, this is used when Shop has been overridden, we need to
     * restore context->shop of course But also the static fields in Shop class
     *
     * @param int $currentStashIndex
     */
    private function restoreShopContext(int $currentStashIndex): void
    {
        $shop = $this->contextFieldsStack[$currentStashIndex]['shop'];
        $shopId = $shop instanceof Shop ? $shop->id : null;
        $shopContext = $this->contextFieldsStack[$currentStashIndex]['shopContext'];
        if (null !== $shopContext) {
            Shop::setContext($shopContext, $shopId);
        }
        unset($this->contextFieldsStack[$currentStashIndex]['shopContext']);
    }

/**
     * Removes the last saved stashed context, in case this method is called too many times
     * we always keep one layer available
     */
    private function removeLastSavedContext(): void
    {
        array_pop($this->contextFieldsStack);

// When all layers have been popped we restore the initial null value
        if (empty($this->contextFieldsStack)) {
            $this->contextFieldsStack = null;
        }
    }
}

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