<?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:----MjM0MzIyNTA0NDk5Nzg3IDIzODgxODM1NDIyMTI3OTAgODM1MzU2MzY5NjE3MTM1OA==