import { type AnyDragEvent } from "../../../hooks";
import { type FolderGroup } from "./utils/files";
export type { FolderGroup } from "./utils/files";
/**
 * Folder-shaped metadata for a directory import, never set unless `allowFolders` is. Both fields
 * are independently optional, so read them rather than testing the object: a folder import can
 * arrive with neither.
 */
export type FolderImport = {
    /** Top-level subfolder groups, set only when the import has at least one named subfolder. */
    folders?: FolderGroup[];
    /**
     * The name of the folder the user picked or dropped, whether its files sit at that folder's root
     * or inside subfolders. Unset when several folders are dropped at once, since the import then has
     * no single root folder to name it after.
     */
    rootFolderName?: string;
};
export type UseFileUploaderProps = {
    withCopyPaste?: boolean;
    disabled?: boolean;
    allowFolders?: boolean;
    acceptedFileTypes?: string[];
    onDrag?: () => void;
    onFileChange?: (files: FileList, isShiftPressed?: boolean, isFolder?: boolean, folderImport?: FolderImport) => void | Promise<void>;
    onCancel?: () => void;
};
type WaitForFilesOptions = {
    multiple?: boolean;
    accept?: string[];
};
/**
 * Generic hook for handling file uploads via
 * - file picker
 * - drag and drop
 * - copy paste
 */
export declare const useFileUploader: ({ withCopyPaste, disabled, allowFolders, acceptedFileTypes, onDrag, onFileChange, onCancel, }: UseFileUploaderProps) => {
    isDragging: boolean;
    inputRef: import("react").RefObject<HTMLInputElement | null>;
    folderInputRef: import("react").RefObject<HTMLInputElement | null>;
    handleChange: (event: React.ChangeEvent<HTMLInputElement>) => void;
    handleFolderChange: (event: React.ChangeEvent<HTMLInputElement>) => void;
    handleDragEnter: (event: AnyDragEvent) => void;
    handleDragLeave: (event: AnyDragEvent) => void;
    handleDragOver: (event: AnyDragEvent) => void;
    handleDrop: (event: AnyDragEvent) => Promise<void>;
    openFilePicker: () => void;
    openFolderPicker: () => void;
    resetFilePicker: () => void;
    waitForFiles: ({ multiple, accept, }?: WaitForFilesOptions) => Promise<FileList>;
    waitForFile: ({ accept, }?: Pick<WaitForFilesOptions, "accept">) => Promise<File>;
};
export type FileUploader = ReturnType<typeof useFileUploader>;
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