<?php

declare (strict_types=1);
namespace LWVendor\ZipStream\Zip64;

use LWVendor\ZipStream\PackField;
/**
 * @internal
 */
abstract class ExtendedInformationExtraField
{
    private const TAG = 0x1;
    public static function generate(?int $originalSize = null, ?int $compressedSize = null, ?int $relativeHeaderOffset = null, ?int $diskStartNumber = null) : string
    {
        return PackField::pack(new PackField(format: 'v', value: self::TAG), new PackField(format: 'v', value: ($originalSize === null ? 0 : 8) + ($compressedSize === null ? 0 : 8) + ($relativeHeaderOffset === null ? 0 : 8) + ($diskStartNumber === null ? 0 : 4)), ...$originalSize === null ? [] : [new PackField(format: 'P', value: $originalSize)], ...$compressedSize === null ? [] : [new PackField(format: 'P', value: $compressedSize)], ...$relativeHeaderOffset === null ? [] : [new PackField(format: 'P', value: $relativeHeaderOffset)], ...$diskStartNumber === null ? [] : [new PackField(format: 'V', value: $diskStartNumber)]);
    }
}