<?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:----NTc0MjMyMTgzOTc1MDAxNCA1NjU5OTUyNDk3MjcwOTgzIDU3MjM5ODYyNDExODMzMDM=