import { RequestOptions, type UploadForm } from '../Chat.js';
import { type BackupAuthCredential, type GenericServerPublicParams } from '../../zkgroup/index.js';
import { type CdnCredentials } from './CdnCredentials.js';
import { type PrivateKey } from '../../EcKeys.js';
import { type Rng } from '../../RngForTesting.js';
export { type CdnCredentials } from './CdnCredentials.js';
declare module '../Chat' {
    interface UnauthenticatedChatConnection extends UnauthBackupsService {
    }
}
export type BackupAuth = {
    credential: BackupAuthCredential;
    serverKeys: GenericServerPublicParams;
    signingKey: PrivateKey;
};
export interface UnauthBackupsService {
    /**
     * Get a messages backup upload form
     *
     * @param rng should be omitted in production
     * @throws {UploadTooLarge} if `uploadSize` is too large
     * @throws {RequestUnauthorizedError} if `auth` is invalid
     * @throws {StandardNetworkError}
     */
    getUploadForm: (request: {
        auth: BackupAuth;
        uploadSize: number;
        rng?: Rng;
    }, options?: RequestOptions) => Promise<UploadForm>;
    /**
     * Get a media backup upload form
     *
     * @param rng should be omitted in production
     * @throws {UploadTooLarge} if `uploadSize` is too large
     * @throws {RequestUnauthorizedError} if authorization fails
     * @throws {StandardNetworkError}
     */
    getMediaUploadForm: (request: {
        auth: BackupAuth;
        uploadSize: number;
        rng?: Rng;
    }, options?: RequestOptions) => Promise<UploadForm>;
    /**
     * @deprecated requires every connection to support H2
     */
    setBackupPublicKey: (request: {
        auth: BackupAuth;
        rng?: Rng;
    }, options?: RequestOptions) => Promise<void>;
    /**
     * @deprecated requires every connection to support H2
     */
    getBackupCdnCredentials: (request: {
        auth: BackupAuth;
        cdn: number;
        rng?: Rng;
    }, options?: RequestOptions) => Promise<CdnCredentials>;
    /**
     * @deprecated requires every connection to support H2
     */
    getBackupSvrBCredentials: (request: {
        auth: BackupAuth;
        rng?: Rng;
    }, options?: RequestOptions) => Promise<{
        username: string;
        password: string;
    }>;
    /**
     * @deprecated requires every connection to support H2
     */
    refreshBackup: (request: {
        auth: BackupAuth;
        rng?: Rng;
    }, options?: RequestOptions) => Promise<void>;
    /**
     * @deprecated requires every connection to support H2
     */
    backupDeleteAll: (request: {
        auth: BackupAuth;
        rng?: Rng;
    }, options?: RequestOptions) => Promise<void>;
}