smartemailing/types

<?php

declare(strict_types = 1);

namespace SmartEmailing\Types;

use SmartEmailing\Types\Comparable\ComparableInterface;
use SmartEmailing\Types\Comparable\StringComparableTrait;
use SmartEmailing\Types\ExtractableTraits\StringExtractableTrait;

final class Base64String implements ToStringInterface, ComparableInterface
{

    use StringExtractableTrait;
    use ToStringTrait;
    use StringComparableTrait;

    private function __construct(
        private string $value
    )
    {
        if (!$this->isValid($value)) {
            throw new InvalidTypeException('Invalid Base64 string');
        }
    }

    public static function encode(
        string $value
    ): self
    {
        return new static(
            \base64_encode($value)
        );
    }

    public function getValue(): string
    {
        return $this->value;
    }

    public function getDecodedValue(): string
    {
        $value = \base64_decode($this->value, true);

        if ($value === false) {
            throw new InvalidTypeException('Unable to decode Base64');
        }

        return $value;
    }

    private function isValid(
        string $value
    ): bool
    {
        return \base64_decode($value, true) !== false;
    }

}