import { EntityDict } from '../oak-app-domain';
import { BRC } from '..';
import { Cache } from 'oak-frontend-base/es/features/cache';
export type UploadFn = (file: File | string | Blob, name: string, // 文件的part name
uploadUrl: string, // 上传的url
formData: Record<string, any>, // 上传的其它part参数
autoInform?: boolean, // 上传成功是否会自动通知server（若不会则需要前台显式通知
getPercent?: Function, uploadId?: string, method?: "POST" | "PUT") => Promise<any>;
export type UploadToAspect = (file: File | string, name: string, // 文件的part name
aspectName: string, // 上传的aspect名
formData: Record<string, any>, // 上传的其它part参数
autoInform?: boolean) => Promise<any>;
/**
 * Complicated Object Storage
 * 用于定义在extraFile对象上对文件进行操作的目标类
 * 根据不同的cos服务提供方法实现，如七牛、阿里等
 */
export interface Cos<ED extends EntityDict> {
    name: string;
    /**
     * 是否自动通知服务器（不需要主动更新extraFile的uploadState)
     */
    autoInform(): boolean;
    /**
     * 前台在生成extraFile返回之后调用此函数，获得上传OSS的相应参数
     * 上传成功后，OSS服务器尽量使用通过后台回调服务器的方式去确认上传，若OSS不提供此能力则将autoInform置为false，前台主动在上传成功之后去更新
     * @param extraFile
     * @returns
     */
    upload: (options: {
        extraFile: ED['extraFile']['OpSchema'];
        uploadFn: UploadFn;
        file: string | File;
        uploadToAspect?: UploadToAspect;
        getPercent?: Function;
        parallelism?: number;
        retryTimes?: number;
        retryDelay?: number;
        onChunkSuccess?: (chunkInfo: EntityDict['extraFile']['Schema']['chunkInfo']) => Promise<void>;
    }) => Promise<void>;
    /**
     * 构建出访问图片的url，注意这个url应当和objectId一对一映射，这样才可以实现多个extraFile之间共享cos上的路径
     */
    composeFileUrl: (options: {
        application: Partial<ED['application']['Schema']>;
        extraFile: Partial<ED['extraFile']['OpSchema']>;
        cache: Cache<ED>;
        style?: string;
    }) => string;
}
export interface CosBackend<ED extends EntityDict> {
    name: string;
    /**
     * 注入在后台extrafile生成之前，将上传所需要的token等信息生成并存放在uploadMeta属性中
     * @param application applciation
     * @param extraFile，要生成的extraFile数据
     * @param context 后台上下文
     * @returns
     */
    formUploadMeta: (application: ED['application']['Schema'], extraFile: ED['extraFile']['OpSchema'], context: BRC<ED>) => Promise<void>;
    /**
     * 构建出访问图片的url，注意这个url应当和objectId一对一映射，这样才可以实现多个extraFile之间共享cos上的路径
     */
    composeFileUrlBackend: (options: {
        application: ED['application']['Schema'];
        extraFile: ED['extraFile']['OpSchema'];
        context: BRC<ED>;
        style?: string;
    }) => Promise<string>;
    /**
     * 后台对upload是否成功不确定的文件，向OSS发起主动确认
     * @param extraFile
     * @returns 是否已经上传OSS成功
     */
    checkWhetherSuccess: (application: ED['application']['Schema'], extraFile: ED['extraFile']['OpSchema'], context: BRC<ED>) => Promise<boolean>;
    /**
     * 后台向OSS发起删除命令
     * @param extraFile
     * @param config
     * @returns
     */
    removeFile: (application: ED['application']['Schema'], extraFile: ED['extraFile']['OpSchema'], context: BRC<ED>) => Promise<void>;
    /**
     * 取消分片上传
     * @param extraFile
     * @returns
     */
    abortMultipartUpload: (application: ED['application']['Schema'], extraFile: ED['extraFile']['OpSchema'], context: BRC<ED>) => Promise<void>;
    /**
     * 构建分片上传信息
     */
    composeChunkUploadInfo: (application: ED['application']['Schema'], extraFile: ED['extraFile']['OpSchema'], context: BRC<ED>) => Promise<{
        uploadId: string;
        chunkSize: number;
        partCount: number;
        parts: Array<{
            partNumber: number;
            uploadUrl: string;
            formData: Record<string, any>;
        }>;
    }>;
    /**
     * 完成分片上传后的合并操作
     */
    mergeChunkedUpload: (application: ED['application']['Schema'], extraFile: ED['extraFile']['OpSchema'], context: BRC<ED>) => Promise<void>;
    /**
     * 列出分片信息
     */
    listMultipartUploads: (application: ED['application']['Schema'], extraFile: ED['extraFile']['OpSchema'], context: BRC<ED>) => Promise<{
        parts: Array<{
            partNumber: number;
            etag: string;
            size: number;
            lastModified: Date;
        }>;
    }>;
}