Рост кэша catalog.section в Битрикс: политика кэширования

<?php
namespace Local\Catalog;

class CatalogCachePolicy
{
    private static array $config = [
        'rules' => [
            'disable_for_ajax' => true,
            'disable_for_range_filters' => true,
            'disable_for_page_gt' => 5,
            'disable_for_filtered_page_gt' => 3,
            'disable_for_non_default_sort' => true,
            'default_sort_field' => 'sort',
            'default_sort_order' => 'asc',
            'disable_for_non_default_display' => true,
            'default_display' => 'block',
            'disable_for_non_default_linerow' => true,
            'default_linerow' => '4',
        ],
        'section_rules' => [],
    ];
    
    public static function configure(array $config): void
    {
        // array_replace_recursive, а не array_merge_recursive:
        // последний для скалярных ключей не заменяет значение,
        // а превращает его в массив — [5, 3] вместо 3
        self::$config = array_replace_recursive(self::$config, $config);
    }
    
    public static function getCatalogComponentCacheOptions(): array
    {
        $cacheType = 'A';
        $cacheFilter = 'Y';

        $isRangeFilter = self::containsRangeFilter();
        $page = self::resolvePageNumber();
        $hasNonDefaultSort = self::hasNonDefaultSort();
        $hasNonDefaultDisplay = self::hasNonDefaultDisplay();
        $hasNonDefaultLineRow = self::hasNonDefaultLineRow();
        $isAjax = self::isAjaxRequest();
    
        if (
            ($isRangeFilter && self::isEnabled('disable_for_range_filters'))
            || $page > self::$config['rules']['disable_for_page_gt']
            || ($hasNonDefaultSort && self::isEnabled('disable_for_non_default_sort'))
            || ($hasNonDefaultDisplay && self::isEnabled('disable_for_non_default_display'))
            || ($hasNonDefaultLineRow && self::isEnabled('disable_for_non_default_linerow'))
            || ($isAjax && self::isEnabled('disable_for_ajax'))
        ) {
            $cacheType = 'N';
            $cacheFilter = 'N';
        }

        return [
            'CACHE_TYPE' => $cacheType,
            'CACHE_FILTER' => $cacheFilter,
        ];
    }
    
    private static function isEnabled(string $rule): bool
    {
        return !empty(self::$config['rules'][$rule]);
    }

    private static function containsRangeFilter(): bool
    {
        $uri = $_SERVER['REQUEST_URI'] ?? '';
        return preg_match('/-(from|to)-\d+/i', $uri) > 0;
    }
    
    private static function resolvePageNumber(): int
    {
        foreach ($_GET as $key => $value) {
            if (preg_match('/^PAGEN_\d+$/i', $key)) {
                return (int) $value;
            }
        }
        return 1;
    }
    
    private static function hasNonDefaultSort(): bool
    {
        $sort = $_GET['sort'] ?? self::$config['rules']['default_sort_field'];
        $order = $_GET['order'] ?? self::$config['rules']['default_sort_order'];
        
        return $sort !== self::$config['rules']['default_sort_field']
            || $order !== self::$config['rules']['default_sort_order'];
    }
    
    private static function hasNonDefaultDisplay(): bool
    {
        $display = $_GET['display'] ?? self::$config['rules']['default_display'];
        return $display !== self::$config['rules']['default_display'];
    }
    
    private static function hasNonDefaultLineRow(): bool
    {
        $linerow = $_GET['linerow'] ?? self::$config['rules']['default_linerow'];
        return $linerow !== self::$config['rules']['default_linerow'];
    }
    
    private static function isAjaxRequest(): bool
    {
        return !empty($_SERVER['HTTP_X_REQUESTED_WITH'])
            && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) === 'xmlhttprequest';
    }
}

<?php
// В шаблоне каталога
$catalogCacheOptions = \Local\Catalog\CatalogCachePolicy::getCatalogComponentCacheOptions();

$APPLICATION->IncludeComponent(
    "bitrix:catalog",
    "main",
    [
        "CACHE_TYPE" => $catalogCacheOptions["CACHE_TYPE"],
        "CACHE_FILTER" => $catalogCacheOptions["CACHE_FILTER"],
        // ... остальные параметры
    ]
);

CatalogCachePolicy::configure([
    'section_rules' => [
        'lineynye-svetilniki' => [
            'disable_for_page_gt' => 3,
            'disable_for_filtered_page_gt' => 2,
        ],
        'plastikovye-konteynery' => [
            'disable_for_filtered_page_gt' => 2,
        ],
    ],
]);