import { default as React } from 'react';
export type FileKind = 'folder' | 'image' | 'video' | 'audio' | 'pdf' | 'document' | 'text' | 'code' | 'archive' | 'file';
export type FileBrowserView = 'thumbnail' | 'list' | 'details';
export type FileBrowserThumbnailFit = 'cover' | 'contain';
export interface FileBrowserColumn {
    key: string;
    header: string;
    width?: string;
    align?: 'left' | 'right' | 'center';
    render?: (item: FileBrowserItem) => React.ReactNode;
}
export interface FileBrowserItem {
    id: string;
    name: string;
    kind?: FileKind;
    subtitle?: string;
    thumbnailUrl?: string;
    previewUrl?: string;
    mimeType?: string;
    size?: number;
    modified?: Date | number | string;
    badge?: React.ReactNode;
    loading?: boolean;
    disabled?: boolean;
    selectable?: boolean;
    meta?: Record<string, React.ReactNode>;
    data?: unknown;
}
export interface RejectedFile {
    file: File;
    reason: 'type' | 'size' | 'count';
}
export declare function extensionOf(name: string): string;
export declare function inferKind(item: Pick<FileBrowserItem, 'kind' | 'name' | 'mimeType'>): FileKind;
export declare function isPreviewableMedia(kind: FileKind): boolean;
export declare function formatFileSize(bytes?: number): string;
export declare function formatModified(modified?: Date | number | string): string;
export declare function fileMatchesAccept(file: File, accept?: string): boolean;
export interface FilterFilesOptions {
    accept?: string;
    maxFileSize?: number;
    maxFiles?: number;
    existingCount?: number;
}
export declare function filterFiles(files: File[], { accept, maxFileSize, maxFiles, existingCount }: FilterFilesOptions): {
    accepted: File[];
    rejected: RejectedFile[];
};