NumberTransformerAttribute.php

<?php

declare(strict_types=1);

namespace Picamator\TransferObject\Transfer\Attribute\Transformer;

use Attribute;
use BcMath\Number;

/**
 * @api
 */
#[Attribute(Attribute::TARGET_CLASS_CONSTANT)]
final readonly class NumberTransformerAttribute implements TransformerAttributeInterface
{
    use InvalidTypeAssertTrait;

    /**
     * @param class-string<\BcMath\Number> $typeName
     */
    public function __construct(private string $typeName)
    {
    }

    public function fromArray(mixed $data): Number
    {
        if (\is_float($data)) {
            return new $this->typeName((string)$data);
        }

        if (\is_numeric($data)) {
            return new $this->typeName($data);
        }

        if ($data instanceof Number) {
            return $data;
        }

        $this->throwInvalidType($data);
    }

    /**
     * @param \BcMath\Number $data
     */
    public function toArray(mixed $data): string
    {
        return $data->__toString();
    }
}