import type { FilesError } from "../internal/errors.js";
import type { NativeFileRef } from "./types.js";
export type FileUploadStatus = "pending" | "uploading" | "success" | "error" | "aborted";
/**
 * The body a `FileUploadState` tracks. `Uint8Array` and `NativeFileRef`
 * appear only in React Native — the former on runtimes whose `Blob` cannot
 * wrap raw bytes, the latter for picker-asset uploads.
 */
export type UploadStateBody = Blob | Uint8Array | NativeFileRef;
export interface FileUploadState {
    file: UploadStateBody;
    name: string;
    size: number;
    type: string;
    key?: string;
    status: FileUploadStatus;
    loaded: number;
    total: number;
    /** 0–1. */
    progress: number;
    error?: FilesError;
}
export interface AggregateProgress {
    loaded: number;
    total: number;
    /** 0–1 across all files. */
    fraction: number;
}
export declare const aggregate: (states: readonly FileUploadState[]) => AggregateProgress;
export declare const fileName: (file: UploadStateBody) => string;
export declare const initialState: (file: UploadStateBody) => FileUploadState;
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