import { ObjectCannedACL, Part, S3Client, S3ClientConfig } from '@aws-sdk/client-s3';
import { BaseStorage, BaseStorageOptions, File, FileInit, FilePart, FileQuery, HttpError, IncomingMessage, LocalMetaStorageOptions, MetaStorage } from '@uploadx/core';
import { AWSError } from './aws-error';
import { S3MetaStorageOptions } from './s3-meta-storage';
export declare class S3File extends File {
    Parts?: Part[];
    UploadId?: string;
    uri?: string;
    partsUrls?: string[];
    partSize?: number;
}
export type S3StorageOptions = BaseStorageOptions<S3File> & S3ClientConfig & {
    /**
     * S3 bucket
     * @defaultValue 'node-uploadx'
     */
    bucket?: string;
    /**
     *   Specifying access rules for uploaded files
     */
    acl?: ObjectCannedACL;
    /**
     * Force compatible client upload directly to S3 storage
     */
    clientDirectUpload?: boolean;
    /**
     * The parts size that the client should use for presigned multipart unloading
     * @defaultValue '16MB'
     */
    partSize?: number | string;
    /**
     * Configure metafiles storage
     * @example
     * Using local metafiles
     * ```ts
     * const storage = new S3Storage({
     *   bucket: 'uploads',
     *   region: 'eu-west-3',
     *   metaStorageConfig: { directory: '/tmp/upload-metafiles' }
     * })
     * ```
     * Using a separate bucket for metafiles
     * ```ts
     * const storage = new S3Storage({
     *   bucket: 'uploads',
     *   region: 'eu-west-3',
     *   metaStorageConfig: { bucket: 'upload-metafiles' }
     * })
     * ```
     */
    metaStorageConfig?: LocalMetaStorageOptions | S3MetaStorageOptions;
    /**
     * @deprecated Use standard auth providers
     */
    keyFile?: string;
};
/**
 * S3 storage based backend.
 * @example
 * ```ts
 * const storage = new S3Storage({
 *  bucket: <YOUR_BUCKET>,
 *  endpoint: <YOUR_ENDPOINT>,
 *  region: <YOUR_REGION>,
 *  credentials: {
 *    accessKeyId: <YOUR_ACCESS_KEY_ID>,
 *    secretAccessKey: <YOUR_SECRET_ACCESS_KEY>
 *  },
 *  metaStorageConfig: { directory: '/tmp/upload-metafiles' }
 * });
 * ```
 */
export declare class S3Storage extends BaseStorage<S3File> {
    config: S3StorageOptions;
    bucket: string;
    client: S3Client;
    meta: MetaStorage<S3File>;
    checksumTypes: string[];
    private readonly _partSize;
    constructor(config?: S3StorageOptions);
    normalizeError(error: AWSError): HttpError;
    create(req: IncomingMessage, config: FileInit): Promise<S3File>;
    write(part: FilePart | FileQuery): Promise<S3File>;
    delete({ id }: FileQuery): Promise<S3File[]>;
    update({ id }: FileQuery, metadata: Partial<S3File>): Promise<S3File>;
    accessCheck(maxWaitTime?: number): Promise<any>;
    private buildPresigned;
    private getPartsPresignedUrls;
    private _onComplete;
    private _getParts;
    private _completeMultipartUpload;
    private _abortMultipartUpload;
}