<?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:----ODAxMzk2MTQyMzQwNDUwMiAxODY5MTU4OTAxMjc2NDc5IDgwMzUzNjgzNzA1NTAzMTc=