Subtype.php

См. документацию.

<?php
 
namespace Bitrix\Im\V2\Link\File;
 
use Bitrix\Disk\TypeFile;
use JsonSerializable;
 
enum Subtype: string implements JsonSerializable
{
    case Media = 'MEDIA';
    case Audio = 'AUDIO';
    case Brief = 'BRIEF';
    case Document = 'DOCUMENT';
    case Other = 'OTHER';
 
    public static function tryFromDiskFileType(int $diskFileType): self
    {
        return match ($diskFileType)
        {
            TypeFile::IMAGE, TypeFile::VIDEO => self::Media,
            TypeFile::DOCUMENT, TypeFile::PDF => self::Document,
            TypeFile::AUDIO => self::Audio,
            default => self::Other,
        };
    }

    public static function getSubtypeFilter(string|array $subtypes): array
    {
        $result = [];
 
        if (is_string($subtypes))
        {
            $subtypes = [$subtypes];
        }
 
        foreach ($subtypes as $subtype)
        {
            if (self::tryFrom($subtype) !== null)
            {
                $result[$subtype] = $subtype;
            }
        }
 
        return array_values($result);
    }
 
    public static function tryFromOrDefault(string $value): self
    {
        return self::tryFrom($value) ?? self::Other;
    }
 
    public function jsonSerialize(): string
    {
        return mb_strtolower($this->value);
    }
}