import { OutgoingSubscribeRequest, OutgoingSubscribeRequestDelegate } from "../messages/methods/subscribe.js";
import { RequestOptions } from "../messages/outgoing-request.js";
import { SubscriptionDelegate } from "./subscription-delegate.js";
/**
 * Subscription.
 * @remarks
 * https://tools.ietf.org/html/rfc6665
 * @public
 */
export interface Subscription {
    /** Subscription delegate. */
    delegate: SubscriptionDelegate | undefined;
    /** The subscription id. */
    readonly id: string;
    /** Subscription expires. Number of seconds until the subscription expires. */
    readonly subscriptionExpires: number;
    /** Subscription state. */
    readonly subscriptionState: SubscriptionState;
    /** If true, refresh subscription prior to expiration. Default is false. */
    autoRefresh: boolean;
    /**
     * Destroy subscription.
     */
    dispose(): void;
    /**
     * Send re-SUBSCRIBE request.
     * Refreshing a subscription and unsubscribing.
     * https://tools.ietf.org/html/rfc6665#section-4.1.2.2
     * @param delegate - Request delegate.
     * @param options - Options bucket
     */
    subscribe(delegate?: OutgoingSubscribeRequestDelegate, options?: RequestOptions): OutgoingSubscribeRequest;
    /**
     * 4.1.2.2.  Refreshing of Subscriptions
     * https://tools.ietf.org/html/rfc6665#section-4.1.2.2
     */
    refresh(): OutgoingSubscribeRequest;
    /**
     * 4.1.2.3.  Unsubscribing
     * https://tools.ietf.org/html/rfc6665#section-4.1.2.3
     */
    unsubscribe(): OutgoingSubscribeRequest;
}
/**
 * Subscription state.
 * @remarks
 * https://tools.ietf.org/html/rfc6665#section-4.1.2
 * @public
 */
export declare enum SubscriptionState {
    Initial = "Initial",
    NotifyWait = "NotifyWait",
    Pending = "Pending",
    Active = "Active",
    Terminated = "Terminated"
}