import { PrivateVASP, VASP, CallbackFunction } from ".";
import { SessionRequest } from "./messages";
import Web3 from "web3";
import { provider } from "web3-core";
import { SetIntervalAsyncTimer } from "set-interval-async/dynamic";
export default class WhisperTransport {
    web3: Web3;
    timers: {
        [key: string]: SetIntervalAsyncTimer;
    };
    constructor(_provider: provider);
    private waitForMessage;
    /**
     * Wait for Session Requests
     *
     * @param originator VASP waiting for session request
     * @param cb Function to call when SessionRequest message arrives
     * @returns waitId. Needed to finish listening.
     */
    waitForSessionRequest(originator: PrivateVASP, cb: CallbackFunction): Promise<string>;
    /**
     * Wait for Topic Message
     *
     * @param topic Topic to listen to
     * @param sharedKey Shared key previously agreed
     * @param cb Function to call when message arrives
     * @returns waitId. Needed to finish listening.
     */
    waitForTopicMessage(topic: string, sharedKey: string, cb: CallbackFunction): Promise<string>;
    /**
     * Stop waiting for messages
     * @param ids
     */
    stopWaiting(_id: string): Promise<void>;
    /**
     * Send Session Request Message.
     *
     * @param beneficiary BeneficiaryVASP destination of the message
     * @param sessionRequestMsg SessionRequest message to send
     * @returns Hash of message
     */
    sendSessionRequest(beneficiary: VASP, sessionRequestMsg: SessionRequest): Promise<string>;
    /**
     * Send message to specific topic
     *
     * @param topic Topic where to send message
     * @param sharedKey Shared key previously agreed
     * @param message Message to send
     * @returns hash
     */
    sendToTopic(topic: string, sharedKey: string, message: string): Promise<string>;
    /**
     * Generate Whisper Keypairs
     *
     * The Tools.generateKeyPaid does the same but in pure JS. No Whisper node query.
     */
    newKeyPair(): Promise<{
        publicKey: string;
        privateKey: string;
    }>;
}