<?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:----NDU5NzM3MDYzODMyODQ5NCAyODI4OTI3MjkzNTE5NzU4IDc4OTM2NTI1NzgzODk2Nzc=