import { EntityDict } from '../../oak-app-domain';
import { CosBackend } from '../../types/Cos';
import S3 from './s3';
import { OpSchema } from '../../oak-app-domain/ExtraFile/Schema';
import { BRC } from '../..';
export default class S3Backend extends S3 implements CosBackend<EntityDict> {
    private getConfigAndInstance;
    composeFileUrlBackend(options: {
        application: EntityDict['application']['Schema'];
        extraFile: OpSchema;
        context: BRC<EntityDict>;
        style?: string;
    }): Promise<string>;
    formUploadMeta(application: EntityDict['application']['Schema'], extraFile: OpSchema): Promise<void>;
    checkWhetherSuccess(application: EntityDict['application']['Schema'], extraFile: OpSchema): Promise<boolean>;
    removeFile(application: EntityDict['application']['Schema'], extraFile: OpSchema): Promise<void>;
    composeChunkUploadInfo(application: EntityDict['application']['Schema'], extraFile: OpSchema, context: BRC<EntityDict>): Promise<{
        uploadId: string;
        chunkSize: number;
        partCount: number;
        parts: {
            partNumber: number;
            uploadUrl: string;
            formData: {};
        }[];
    }>;
    /**
* 完成分片上传后的合并操作
*/
    mergeChunkedUpload(application: EntityDict['application']['Schema'], extraFile: OpSchema, context: BRC<EntityDict>): Promise<void>;
    abortMultipartUpload(application: EntityDict['application']['Schema'], extraFile: OpSchema, context: BRC<EntityDict>): Promise<void>;
    listMultipartUploads(application: EntityDict['application']['Schema'], extraFile: OpSchema, context: BRC<EntityDict>): Promise<{
        parts: Array<{
            partNumber: number;
            etag: string;
            size: number;
            lastModified: Date;
        }>;
    }>;
}