import { type FikaMediaKind, type FikaMediaSizeLimit } from '../configs/mediaUpload';
export type MediaRejectReason = 'type' | 'size' | 'kind' | 'tooMany';
export interface MediaFileRejection {
    file: File;
    reason: MediaRejectReason;
    maxSize?: number;
}
export declare function getFileExtension(file: File): string;
export declare function detectMediaKind(file: File): FikaMediaKind | null;
export declare function getKindMaxFileSize(kind: FikaMediaKind, limit?: FikaMediaSizeLimit): number | undefined;
export declare function getAcceptAttribute(): string;
export declare function validateMediaFile(file: File): MediaFileRejection | null;
export declare function formatBytes(bytes: number): string;
export declare function maxSizeLabel(): string;