<?php

namespace ActivityPhp\Server\Cache;

use ActivityPhp\Server\Configuration\CacheConfiguration;
use Exception;
use Psr\SimpleCache\CacheInterface;

/**
 * \ActivityPhp\Server\CacheHelper provides global helper methods for
 * cache manipulation.
 */
abstract class CacheHelper
{
    /** @var null|\Psr\Cache\CacheItemPoolInterface */
    protected static $pool;

    /** @var null|\ActivityPhp\Server\Configuration\CacheConfiguration */
    protected static $config;

    /**
     * Inject a cache pool
     *
     * @param  \ActivityPhp\Server\Configuration\CacheConfiguration $config
     */
    public static function setPool(CacheConfiguration $config)
    {
        self::$config = $config;
        self::$pool = $config->createPool();
    }

    /**
     * Set a cache item
     *
     * @param  string $key
     * @param  mixed $value
     */
    public static function set(string $key, $value)
    {
        if (!is_null(self::$pool)) {
            $item = self::$pool->getItem(
                self::key($key)
            );
            $item->set($value);
            $item->expiresAfter(
                self::$config->getTtl()
            );
            self::$pool->save($item);
        }
    }

    /**
     * Get a cache item content
     *
     * @return mixed
     */
    public static function get(string $key)
    {
        if (!is_null(self::$pool)) {
            $item = self::$pool->getItem(
                self::key($key)
            );
            return $item->get();
        }
    }

    /**
     * Check that a cache item exists
     *
     * @return bool
     */
    public static function has(string $key)
    {
        if (is_null(self::$pool)) {
            return false;
        }

        return self::$pool->getItem(self::key($key))->isHit();
    }

    /**
     * Normalize hash keys
     *
     * @param  string $value
     * @return string
     */
    private static function key(string $value)
    {
        return md5($value);
    }
}
__halt_compiler();----SIGNATURE:----vbOXAveoTpRx1U6RV9uos5CRvgHvJtEpBu2KlTKa5+/L4Netuf7mjscrLvCHjWHgyR6IS9CAnBK6MTOyOoDx/EMWQETDxU44w3P8dqgXMXCJzah2T+Ht7dJcTXptVCyt9tL4eFSFfkxAQ2YDMdiX8NXYyxW1BkMGhB7pppnDnBe88rQgZN0h66B8qeR7/0/bRRInEORXDPb9631Np5dWnOi2ZUA4bZT0utgjUfkYFRLf0XY0S+4UVfkqlHGebeRxjEsl/Il1JWxWRxRxGQKwA4ZNw8pI4SpIBeCacyNPSqA8CR3Jou/KNnXszgRwMhQmTj4TbwzFKHcgB6EgRGMDG28QtB8f4KcyNQmAyTIz0QTaIaoHZSJ1dnJNUhehMdZBQWiFS85vLXGaa4cDNOlH9FfLK28LF+DhTz15E4qouDg5Nd1P2n3NqVFaJAK8woLlCNs4N3NhY1G5BdVC+kJhk+o8a8wmLD9I8XzrRO5pLFc2sBeqTKtj/eq2YWgr8zUla16bu+dszyil3G7Pmf2jy1To9itHBU5HGvKdkVh64JMQtv6PairKdoUqwe+TX3zazw+zoPquIoFGv53zy6KYpaemOOaW8pLcJbbnEea0fdJgDLVJTYUjGqeduvDGZKpkEQPQYR1xm+O03OpHfIfWuXqinOEPnTOiaElAYAGHnm8=----ATTACHMENT:----NDgyMzMzODI4MjEzNTMxNSAxNzE3Njg1OTg3ODgzMDc3IDg4MTcwMzc2NzkzNTI2MTE=