Smile-SA/elasticsuite

<?php
/**
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Smile ElasticSuite to newer
 * versions in the future.
 *
 * @category  Smile
 * @package   Smile\ElasticsuiteCatalog
 * @author    Romain Ruaud <romain.ruaud@smile.fr>
 * @copyright 2020 Smile
 * @license   Open Software License ("OSL") v. 3.0
 */
namespace Smile\ElasticsuiteCatalog\Block\Navigation\Renderer;

/**
 * Default renderer that can render all attributes.
 *
 * @category Smile
 * @package  Smile\ElasticsuiteCatalog
 * @author   Romain Ruaud <romain.ruaud@smile.fr>
 */
class Attribute extends AbstractRenderer
{
    const JS_COMPONENT = 'Smile_ElasticsuiteCatalog/js/attribute-filter';

    const REL_NOFOLLOW = 'nofollow';

    /**
     * Returns true if checkox have to be enabled.
     *
     * @return boolean
     */
    public function isMultipleSelectEnabled()
    {
        return true;
    }

    /**
     * {@inheritDoc}
     */
    public function getJsLayout()
    {
        $filterItems    = $this->getFilter()->getItems();

        $jsLayoutConfig = [
            'component'           => self::JS_COMPONENT,
            'maxSize'             => (int) $this->getFilter()->getAttributeModel()->getFacetMaxSize(),
            'displayProductCount' => (bool) $this->displayProductCount(),
            'hasMoreItems'        => (bool) $this->getFilter()->hasMoreItems(),
            'displayRelNofollow'  => $this->getRelNofollowValue(),
            'ajaxLoadUrl'         => $this->getAjaxLoadUrl(),
        ];

        foreach ($filterItems as $item) {
            $jsLayoutConfig['items'][] = $item->toArray(['label', 'count', 'url', 'is_selected']);
        }

        return json_encode($jsLayoutConfig);
    }

    /**
     * {@inheritDoc}
     */
    protected function canRenderFilter()
    {
        return true;
    }

    /**
     * Get value for HTML attribute rel
     *
     * @return string
     *
     * @throws \Magento\Framework\Exception\LocalizedException
     */
    private function getRelNofollowValue()
    {
        $value = '';

        if ($this->getFilter()->getAttributeModel()->getIsDisplayRelNofollow()) {
            $value = self::REL_NOFOLLOW;
        }

        return $value;
    }

    /**
     * Get the AJAX load URL (used by the show more and the search features).
     *
     * @return string
     */
    private function getAjaxLoadUrl()
    {
        $qsParams = ['filterName' => $this->getFilter()->getRequestVar()];

        $currentCategory = $this->getFilter()->getLayer()->getCurrentCategory();

        if ($currentCategory && $currentCategory->getId() && $currentCategory->getLevel() > 1) {
            $qsParams['cat'] = $currentCategory->getId();
        }

        $urlParams = ['_current' => true, '_query' => $qsParams];

        return $this->_urlBuilder->getUrl('catalog/navigation_filter/ajax', $urlParams);
    }
}