import { BrowserTypes } from '@finos/fdc3';
import { FullyQualifiedAppIdentifier, RequestMessage } from '../contracts.js';
type PartialRequestMessage<T extends BrowserTypes.AppRequestMessage> = {
    type: T['type'];
    payload: T['payload'];
    meta: Required<BrowserTypes.AppRequestMessage['meta']>;
};
/**
 * Attempts to construct a request message of the given type.
 * Currently all types that extend AppRequestMessage can be constructed by this function
 * If this changes in the future and some types require extra props this function will have a return type of unknown and will need to be modified
 */
export declare function createRequestMessage<T extends RequestMessage>(type: T['type'], source: FullyQualifiedAppIdentifier, payload: T['payload']): PartialRequestMessage<T> extends T ? T : unknown;
type PartialResponseMessage<T extends BrowserTypes.AgentResponseMessage> = {
    type: T['type'];
    payload: T['payload'];
    meta: Required<BrowserTypes.AgentResponseMessage['meta']>;
};
export declare function createResponseMessage<T extends BrowserTypes.AgentResponseMessage>(type: T['type'], payload: T['payload'], requestUuid: string, source: FullyQualifiedAppIdentifier): PartialResponseMessage<T> extends T ? T : unknown;
type PartialEvent<T extends BrowserTypes.AgentEventMessage> = {
    type: T['type'];
    payload: T['payload'];
    meta: Required<BrowserTypes.AgentEventMessage['meta']>;
};
export declare function createEvent<T extends BrowserTypes.AgentEventMessage>(type: T['type'], payload: T['payload']): PartialEvent<T> extends T ? T : unknown;
export declare function generateHelloMessage(identityUrl?: string): BrowserTypes.WebConnectionProtocol1Hello;
export declare function generateHandshakeResponseMessage(message: BrowserTypes.WebConnectionProtocol1Hello): BrowserTypes.WebConnectionProtocol3Handshake;
export declare function generateValidateIdentityMessage(connectionAttemptUuid: string, identityUrl?: string, instanceId?: string, instanceUuid?: string): BrowserTypes.WebConnectionProtocol4ValidateAppIdentity;
export declare function generateGoodbyeMessage(): BrowserTypes.WebConnectionProtocol6Goodbye;
/**
 * Listens to hello messages on the provided window and calls the provided callback with the connectionAttemptUuid
 * If the connection fails and is re-attempted a second connection attempt will be passed to the callback
 * call the returned unsubscribe function to stop listening
 */
export declare function subscribeToConnectionAttemptUuids(
/**
 * The window to listen for hello messages on
 */
windowRef: WindowProxy, 
/**
 * The new window that has just been created that will be sending hello messages
 */
childWindow: WindowProxy, callback: (connectionAttemptUuid: string) => void): {
    unsubscribe: () => void;
};
export {};