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<?php

class ActionScheduler_WPCommentCleaner
{
    protected static $cleanup_hook = 'action_scheduler/cleanup_wp_comment_logs';
    protected static $wp_comment_logger = null;
    protected static $has_logs_option_key = 'as_has_wp_comment_logs';
    public static function init()
    {
        if (empty(self::$wp_comment_logger)) {
            self::$wp_comment_logger = new ActionScheduler_wpCommentLogger();
        }
        add_action(self::$cleanup_hook, array(__CLASS__, 'delete_all_action_comments'));
        add_action('pre_get_comments', array(self::$wp_comment_logger, 'filter_comment_queries'), 10, 1);
        add_action('wp_count_comments', array(self::$wp_comment_logger, 'filter_comment_count'), 20, 2);
        add_action('comment_feed_where', array(self::$wp_comment_logger, 'filter_comment_feed'), 10, 2);
        add_action('load-tools_page_action-scheduler', array(__CLASS__, 'register_admin_notice'));
        add_action('load-woocommerce_page_wc-status', array(__CLASS__, 'register_admin_notice'));
    }
    public static function has_logs()
    {
        return 'yes' === get_option(self::$has_logs_option_key);
    }
    public static function maybe_schedule_cleanup()
    {
        if ((bool) get_comments(array('type' => ActionScheduler_wpCommentLogger::TYPE, 'number' => 1, 'fields' => 'ids'))) {
            update_option(self::$has_logs_option_key, 'yes');
            if (!as_next_scheduled_action(self::$cleanup_hook)) {
                as_schedule_single_action(gmdate('U') + 6 * MONTH_IN_SECONDS, self::$cleanup_hook);
            }
        }
    }
    public static function delete_all_action_comments()
    {
        global $wpdb;
        $wpdb->delete($wpdb->comments, array('comment_type' => ActionScheduler_wpCommentLogger::TYPE, 'comment_agent' => ActionScheduler_wpCommentLogger::AGENT));
        delete_option(self::$has_logs_option_key);
    }
    public static function register_admin_notice()
    {
        add_action('admin_notices', array(__CLASS__, 'print_admin_notice'));
    }
    public static function print_admin_notice()
    {
        $next_cleanup_message = '';
        $next_scheduled_cleanup_hook = as_next_scheduled_action(self::$cleanup_hook);
        if ($next_scheduled_cleanup_hook) {
            $next_cleanup_message = sprintf(__('This data will be deleted in %s.', 'woocommerce'), human_time_diff(gmdate('U'), $next_scheduled_cleanup_hook));
        }
        $notice = sprintf(__('Action Scheduler has migrated data to custom tables; however, orphaned log entries exist in the WordPress Comments table. %1$s <a href="%2$s">Learn more &raquo;</a>', 'woocommerce'), $next_cleanup_message, 'https://github.com/woocommerce/action-scheduler/issues/368');
        echo '<div class="notice notice-warning"><p>' . wp_kses_post($notice) . '</p></div>';
    }
}