factory.php

<?php
 
namespace Bitrix\Socialnetwork\Internals\LiveFeed\Counter\State;
 
use Bitrix\Main\Config\Option;
use Bitrix\Socialnetwork\Internals\LiveFeed\Counter;
use Bitrix\Socialnetwork\Internals\LiveFeed\Counter\CounterState;
 
class Factory
{
    private static array $instance = [];
 
    public static function getState(int $userId): CounterState
    {
        if (
            !self::$instance
            || !array_key_exists($userId, self::$instance)
        )
        {
            $loader = new Counter\Loader($userId);
 
            if (self::useInMemoryState())
            {
                self::$instance[$userId] = new InMemory($userId, $loader);
            }
            elseif ($loader->getTotalCounters() >= Counter::getGlobalLimit())
            {
                // use db directly
                self::$instance[$userId] = new InDatabase($userId, $loader);
            }
            else
            {
                // by default
                self::$instance[$userId] = new InMemory($userId, $loader);
            }
        }
 
        return self::$instance[$userId];
    }
 
    public static function reloadState(int $userId)
    {
        if (
            self::$instance
            && array_key_exists($userId, self::$instance)
        )
        {
            $state = self::$instance[$userId];
            $state->init();
        }
    }
 
    private static function useInMemoryState(): bool
    {
        if (Option::get('socialnetwork', 'sonet_use_in_memory_counter_state', 'null', '-') !== 'null')
        {
            return true;
        }
 
        return false;
    }
}