import { default as React } from 'react';
import { FileRejection, UploadFile, UploadedFileWithStatus, UploadState } from './types';
export declare const useUploadState: () => {
    internalDragState: {
        isDragActive: boolean;
        isDragAccept: boolean;
        isDragReject: boolean;
    };
    setInternalDragState: React.Dispatch<React.SetStateAction<{
        isDragActive: boolean;
        isDragAccept: boolean;
        isDragReject: boolean;
    }>>;
    setDragCounter: React.Dispatch<React.SetStateAction<number>>;
};
export declare const getVisualState: (disabled: boolean, isDragReject: boolean, isDragAccept: boolean, isDragActive: boolean) => string;
export declare const validateFile: (accept: string[], maxSize?: number, validator?: (file: File) => FileRejection["errors"][0] | null) => (file: File) => FileRejection["errors"];
export declare const processFiles: (disabled: boolean, validateFileFn: (file: File) => FileRejection["errors"], onDrop?: (acceptedFiles: File[], rejectedFiles: FileRejection[]) => void, onDropAccepted?: (files: File[]) => void, onDropRejected?: (rejections: FileRejection[]) => void) => (files: FileList) => void;
export declare const updateDragState: (controlledIsDragActive?: boolean, validateFileFn?: (file: File) => FileRejection["errors"], setInternalDragState?: (state: {
    isDragActive: boolean;
    isDragAccept: boolean;
    isDragReject: boolean;
}) => void) => (isDragActive: boolean, files?: File[]) => void;
export declare const createDragHandlers: (disabled: boolean, setDragCounter: (fn: (prev: number) => number) => void, updateDragStateFn: (isDragActive: boolean, files?: File[]) => void, processFilesFn: (files: FileList) => void) => {
    handleDragEnter: (e: React.DragEvent) => void;
    handleDragLeave: (e: React.DragEvent) => void;
    handleDragOver: (e: React.DragEvent) => void;
    handleDrop: (e: React.DragEvent) => void;
};
export declare const createClickHandler: (disabled: boolean, fileInputRef: React.RefObject<HTMLInputElement>) => () => void;
export declare const createFileInputChangeHandler: (processFilesFn: (files: FileList) => void) => (e: React.ChangeEvent<HTMLInputElement>) => void;
export declare const getUploadContent: (uploadingFiles: UploadFile[], uploadedFiles: {
    id: string;
    file: File;
    status: "success" | "error";
    error?: string;
}[], failedFiles: {
    id: string;
    file: File;
    status: "success" | "error";
    error?: string;
}[], state: UploadState, multiple?: boolean) => {
    hasUploadingFiles: boolean;
    uploadingFile: UploadFile | undefined;
    successfulFiles: {
        id: string;
        file: File;
        status: "success" | "error";
        error?: string;
    }[];
    errorFiles: {
        id: string;
        file: File;
        status: "success" | "error";
        error?: string;
    }[];
    hasSuccessfulFiles: boolean;
    hasErrorFiles: boolean;
    isSuccess: boolean;
    isError: boolean;
    multiple: boolean;
};
export declare const getMainTitle: (isDragActive: boolean, isDragAccept: boolean) => string;
export declare const getUploadStateTitle: (state: UploadState, multiple: boolean, hasSuccessfulFiles: boolean, hasErrorFiles: boolean, fileName?: string) => string;
export declare const getUploadStateDescription: (state: UploadState, multiple: boolean, successfulFiles: {
    id: string;
    file: File;
    status: string;
}[], errorFiles: {
    id: string;
    file: File;
    status: string;
}[], userDescription?: string, fileName?: string) => string;
export declare const getVisualUploadState: (disabled: boolean, isDragReject: boolean, isDragAccept: boolean, isDragActive: boolean, state: UploadState) => string;
export declare const truncateFileList: (files: UploadedFileWithStatus[]) => {
    displayFiles: UploadedFileWithStatus[];
    truncatedCount: number;
};
export declare const createEnhancedValidator: (accept: string[], maxSize?: number, validator?: (file: File) => FileRejection["errors"][0] | null) => (file: File) => FileRejection["errors"];
export declare const createEnhancedProcessFiles: (uploadingFiles: UploadFile[], uploadedFiles: UploadedFileWithStatus[], failedFiles: UploadedFileWithStatus[]) => (files: File[]) => {
    unique: File[];
    duplicates: File[];
};
export declare const generateFileId: () => string;
export declare const createFileKey: (file: File) => string;
export declare const filterDuplicateFiles: (newFiles: File[], existingFiles: {
    file: File;
}[]) => {
    unique: File[];
    duplicates: File[];
};
export declare const createDuplicateRejections: (files: File[]) => FileRejection[];
export declare const simulateFileUpload: (uploadFile: UploadFile, onProgressUpdate: (id: string, progress: number) => void, progressInterval?: number) => (() => void);
export declare const createEnhancedProcessFilesFn: (disabled: boolean, validateFileFn: (file: File) => FileRejection["errors"], checkDuplicatesFn: (files: File[]) => {
    unique: File[];
    duplicates: File[];
}, maxFiles?: number, onDrop?: (acceptedFiles: File[], rejectedFiles: FileRejection[]) => void, onDropAccepted?: (files: File[]) => void, onDropRejected?: (rejections: FileRejection[]) => void) => (files: FileList) => void;
export declare const createUploadManager: () => {
    startUpload: (uploadFile: UploadFile, onProgress: (id: string, progress: number) => void, onComplete: (id: string) => void, progressInterval?: number) => (() => void);
    cancelUpload: (uploadId: string) => void;
    cancelAllUploads: () => void;
    hasActiveUploads: () => boolean;
};
export declare const createComplexDropHandler: (multiple: boolean, maxFiles: number | undefined, disabled: boolean, uploadingFiles: UploadFile[], uploadedFiles: UploadedFileWithStatus[], failedFiles: UploadedFileWithStatus[], setInternalState: (state: UploadState) => void, setInternalUploadingFiles: React.Dispatch<React.SetStateAction<UploadFile[]>>, setInternalUploadedFiles: React.Dispatch<React.SetStateAction<UploadedFileWithStatus[]>>, setInternalFailedFiles: React.Dispatch<React.SetStateAction<UploadedFileWithStatus[]>>, uploadManager: ReturnType<typeof createUploadManager>, progressSpeed?: number) => (acceptedFiles: File[], rejectedFiles: FileRejection[]) => void;
export declare const createFileRemovalHandler: (setInternalUploadedFiles: React.Dispatch<React.SetStateAction<UploadedFileWithStatus[]>>, setInternalFailedFiles: React.Dispatch<React.SetStateAction<UploadedFileWithStatus[]>>, setInternalState: (state: UploadState) => void) => (fileId: string) => void;
export declare const createFileReplacementHandler: (setInternalState: (state: UploadState) => void, setInternalUploadedFiles: React.Dispatch<React.SetStateAction<UploadedFileWithStatus[]>>, setInternalFailedFiles: React.Dispatch<React.SetStateAction<UploadedFileWithStatus[]>>) => () => void;
export declare const getMbfromKb: (bytes: number) => number;