<?php
declare(strict_types=1);
namespace Kreait\Firebase\RemoteConfig;
use JsonSerializable;
use Kreait\Firebase\Exception\InvalidArgumentException;
use Stringable;
use function ctype_digit;
final class VersionNumber implements JsonSerializable, Stringable
{
/**
* @param non-empty-string $value
*/
private function __construct(private readonly string $value)
{
}
public function __toString(): string
{
return $this->value;
}
public static function fromValue($value): self
{
$valueString = (string) $value;
if (!ctype_digit($valueString)) {
throw new InvalidArgumentException('A version number should only consist of digits');
}
return new self($valueString);
}
/**
* @return non-empty-string
*/
public function jsonSerialize(): string
{
return $this->value;
}
/**
* @param self|non-empty-string $other
*/
public function equalsTo($other): bool
{
return $this->value === (string) $other;
}
}