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<?php
namespace AC\Storage;
use AC\Expirable;
use LogicException;
final class Timestamp implements KeyValuePair, Expirable {
/**
* @var KeyValuePair
*/
private $storage;
/**
* @param KeyValuePair $storage
*/
public function __construct( KeyValuePair $storage ) {
$this->storage = $storage;
}
/**
* @param int|null $time
*
* @return bool
*/
public function is_expired( $time = null ) {
if ( null === $time ) {
$time = time();
}
return $time > (int) $this->get();
}
/**
* @param int $value
*
* @return bool
*/
public function validate( $value ) {
return preg_match( '/^[1-9]\d*$/', $value );
}
/**
* @param array $args
*
* @return mixed
*/
public function get( array $args = [] ) {
return $this->storage->get( $args );
}
public function delete() {
return $this->storage->delete();
}
/**
* @param int $value
*
* @return bool
* @throws LogicException
*/
public function save( $value ) {
if ( ! $this->validate( $value ) ) {
throw new LogicException( 'Value needs to be a positive integer.' );
}
return $this->storage->save( $value );
}
}
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