<?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:----MTI5NzYyMzI3ODE0NTE2NyA3OTUzODgyNzg2Nzk2NTggNDY3NDU1ODY3NDYzNjk0Mw==