import Unknown from './unknown';
import { OakPreConditionUnsetException } from 'oak-domain/lib/types';
export default class UnknownBackend extends Unknown {
    getConfigAndInstance(application) {
        return {};
    }
    async composeFileUrlBackend(options) {
        const { application, extraFile, context, style } = options;
        return extraFile.extra1;
    }
    async formUploadMeta(application, extraFile) {
    }
    async checkWhetherSuccess(application, extraFile) {
        return true;
    }
    async removeFile(application, extraFile) {
    }
    async composeChunkUploadInfo(application, extraFile, context) {
        throw new OakPreConditionUnsetException('未知暂不支持分片上传');
        return {
            uploadId: '',
            chunkSize: 0,
            partSize: 0,
            partCount: 0,
            parts: [],
        };
    }
    /**
 * 完成分片上传后的合并操作
 */
    async mergeChunkedUpload(application, extraFile, parts, context) {
        // Implementation here
    }
    async abortMultipartUpload(application, extraFile, context) {
    }
    async listMultipartUploads(application, extraFile, context) {
        return {
            parts: [],
        };
    }
    async presignFile(methods, application, extraFile, context) {
        throw new OakPreConditionUnsetException('未知存储暂不支持预签名操作');
    }
    presignMultiPartUpload(application, extraFile, from, to, context) {
        throw new OakPreConditionUnsetException('未知存储暂不支持分片上传预签名');
    }
    prepareChunkedUpload(application, extraFile, context) {
        throw new OakPreConditionUnsetException("未知存储分片上传请使用composeChunkUploadInfo方法获取上传信息", 'extraFile');
    }
}
;