/**
     * @param array $comments
     */
    public static function see($comments)
    {
        foreach ($comments as $key => $comment) {
            if ($comment['parent_id'] !== null) {

                $comment['child_comments'] = collect(self::$comments)->map(function ($key, $item) use ($comment) {
                    if ($item['id'] === $comment['parent_id']) {
                        return $item;
                    }
                });

                if (!in_array($comment['id'], self::$ids)) {
                    self::$ids[] = $comment['id'];
                    $comment['level'] = self::$treeLevel;

                    self::$treeLevel++;
                    self::$tree[] = $comment;

                    CommentRepository::see($comment['child_comments']);
                }
            } else {
                if (!in_array($comment['id'], self::$ids)) {
                    self::$ids[] = $comment['id'];
                    $comment['level'] = 0;
                    self::$treeLevel = 1;
                    self::$tree[] = $comment;
                }
            }
        }
    }