class SearchRequirements

class SearchRequirements {
    use StringTranslationTrait;
    public function __construct(SearchPageRepositoryInterface $searchPageRepository) {
    }
    
    /**
     * Implements hook_runtime_requirements().
     *
     * For the Status Report, return information about search index status.
     */
    public function runtime() : array {
        $requirements = [];
        $remaining = 0;
        $total = 0;
        foreach ($this->searchPageRepository
            ->getIndexableSearchPages() as $entity) {
            $status = $entity->getPlugin()
                ->indexStatus();
            $remaining += $status['remaining'];
            $total += $status['total'];
        }
        $done = $total - $remaining;
        // Use floor() to calculate the percentage, so if it is not quite 100%, it
        // will show as 99%, to indicate "almost done".
        $percent = $total > 0 ? floor(100 * $done / $total) : 100;
        $requirements['search_status'] = [
            'title' => $this->t('Search index progress'),
            'value' => $this->t('@percent% (@remaining remaining)', [
                '@percent' => $percent,
                '@remaining' => $remaining,
            ]),
            'severity' => REQUIREMENT_INFO,
        ];
        return $requirements;
    }

}