<?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:----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----ATTACHMENT:----NjU0NDk2NzA2MjMyNTI0NSA2ODMyMzAxNzUzNjM4NjUgNTI0Mzk5OTQ1ODYyNzMxNw==