<?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:----OTYxMzc4NjcyNjA5NzIwMSA2MjA1Njk3MDcwODk1Mjg2IDEwODY5NjgzOTg4MTM0NTY=