import type { IncomingHttpHeaders } from 'node:http';
import type { Readable } from 'node:stream';
import type { estypes } from '@elastic/elasticsearch';
import type { Context } from 'egg';
export interface UploadResult {
    key: string;
}
export interface AppendResult {
    key: string;
    nextAppendPosition?: number;
}
export interface UploadOptions {
    key: string;
}
export interface AppendOptions {
    key: string;
    position?: string;
    headers?: IncomingHttpHeaders;
}
export interface DownloadOptions {
    timeout: number;
}
export interface NFSClient {
    uploadBytes(bytes: Uint8Array, options: UploadOptions): Promise<UploadResult>;
    appendBytes(bytes: Uint8Array, options: AppendOptions): Promise<AppendResult>;
    upload(filePath: string, options: UploadOptions): Promise<UploadResult>;
    remove(key: string): Promise<void>;
    readBytes(key: string): Promise<Uint8Array | undefined>;
    createDownloadStream(key: string): Promise<Readable | undefined>;
    download(key: string, filepath: string, options: DownloadOptions): Promise<void>;
    url?(key: string): string;
}
export interface QueueAdapter {
    push<T>(key: string, item: T): Promise<boolean>;
    pop<T>(key: string): Promise<T | null>;
    length(key: string): Promise<number>;
}
export interface SearchAdapter {
    search<T>(query: any): Promise<estypes.SearchHitsMetadata<T>>;
    upsert<T>(id: string, document: T): Promise<string>;
    delete(id: string): Promise<string>;
}
export interface AuthUrlResult {
    loginUrl: string;
    doneUrl: string;
}
export interface userResult {
    name: string;
    email: string;
}
export interface AuthClient {
    getAuthUrl(ctx: Context): Promise<AuthUrlResult>;
    ensureCurrentUser(): Promise<userResult | null>;
}