<?php
/**
 * Mageplaza
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Mageplaza.com license that is
 * available through the world-wide-web at this URL:
 * https://www.mageplaza.com/LICENSE.txt
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade this extension to newer
 * version in the future.
 *
 * @category    Mageplaza
 * @package     Mageplaza_LayeredNavigation
 * @copyright   Copyright (c) 2017 Mageplaza (http://www.mageplaza.com/)
 * @license     https://www.mageplaza.com/LICENSE.txt
 */

namespace Mageplaza\LayeredNavigation\Plugin\Block\Swatches;

/**
 * Class RenderLayered
 * @package Mageplaza\LayeredNavigation\Block\Plugin\Swatches
 */
class RenderLayered
{
	/** @var \Magento\Framework\UrlInterface */
	protected $_url;

	/** @var \Magento\Theme\Block\Html\Pager */
	protected $_htmlPagerBlock;

	/** @var \Mageplaza\LayeredNavigation\Helper\Data */
	protected $_moduleHelper;

	/** @type \Magento\Catalog\Model\Layer\Filter\AbstractFilter */
	protected $filter;

	/**
	 * RenderLayered constructor.
	 *
	 * @param \Magento\Framework\UrlInterface $url
	 * @param \Magento\Theme\Block\Html\Pager $htmlPagerBlock
	 * @param \Mageplaza\LayeredNavigation\Helper\Data $moduleHelper
	 */
	public function __construct(
		\Magento\Framework\UrlInterface $url,
		\Magento\Theme\Block\Html\Pager $htmlPagerBlock,
		\Mageplaza\LayeredNavigation\Helper\Data $moduleHelper
	)
	{
		$this->_url            = $url;
		$this->_htmlPagerBlock = $htmlPagerBlock;
		$this->_moduleHelper   = $moduleHelper;
	}

	/**
	 * @param \Magento\Swatches\Block\LayeredNavigation\RenderLayered $subject
	 * @param \Magento\Catalog\Model\Layer\Filter\AbstractFilter $filter
	 * @return array
	 */
	public function beforeSetSwatchFilter(\Magento\Swatches\Block\LayeredNavigation\RenderLayered $subject, \Magento\Catalog\Model\Layer\Filter\AbstractFilter $filter)
	{
		$this->filter = $filter;

		return [$filter];
	}

	/**
	 * @param \Magento\Swatches\Block\LayeredNavigation\RenderLayered $subject
	 * @param $proceed
	 * @param $attributeCode
	 * @param $optionId
	 *
	 * @return string
	 */
	public function aroundBuildUrl(
		\Magento\Swatches\Block\LayeredNavigation\RenderLayered $subject,
		$proceed,
		$attributeCode,
		$optionId
	)
	{
		if (!$this->_moduleHelper->isEnabled()) {
			return $proceed($attributeCode, $optionId);
		}

		$attHelper = $this->_moduleHelper->getFilterModel();
		if ($attHelper->isMultiple($this->filter)) {
			$value = $attHelper->getFilterValue($this->filter);

			if (!in_array($optionId, $value)) {
				$value[] = $optionId;
			} else {
				$key = array_search($optionId, $value);
				if ($key !== false) {
					unset($value[$key]);
				}
			}
		} else {
			$value = [$optionId];
		}

		$query = !empty($value) ? [$attributeCode => implode(',', $value)] : '';

		return $this->_url->getUrl(
			'*/*/*',
			['_current' => true, '_use_rewrite' => true, '_query' => $query]
		);
	}
}