import { Sender, IMessageOptions } from "node-gcm";
import * as Logger from "bunyan";
import { IRecipientResolver } from "../core/recipients";
import { INotification, NotificationRecipients, INotificationDispatchResult, INotificationHandler, INotificationTransport } from "../core/core";
import { NotificationDispatchHandler } from "../core/dispatchHandler";
declare module "../core/core" {
    interface INotificationRecipient {
        gcm?: string | string[];
    }
}
export interface IGcmNotificationHandler<T extends INotification> extends INotificationHandler<T> {
    gcm(notification: T, transport: IGcmNotificationTransport): Promise<any>;
}
export interface IGcmNotificationTransport extends INotificationTransport<Sender> {
    sendMessage(recipients: NotificationRecipients, options: IMessageOptions): Promise<INotificationDispatchResult>;
}
export interface IGcmProviderOptions {
    apiKey: string;
}
export declare function gcmInitializer(logger: Logger, options: IGcmProviderOptions, recipientResolver?: IRecipientResolver): Promise<GcmNotificationDispatchHandler>;
export declare class GcmNotificationDispatchHandler extends NotificationDispatchHandler<IGcmNotificationTransport> {
    constructor(logger: Logger, transport: IGcmNotificationTransport);
}
export declare class GcmNotificationTransport implements IGcmNotificationTransport {
    private logger;
    native: Sender;
    recipientResolver: IRecipientResolver;
    static create(logger: Logger, options: IGcmProviderOptions, recipientResolver: IRecipientResolver): Promise<IGcmNotificationTransport>;
    constructor(logger: Logger, native: Sender, recipientResolver: IRecipientResolver);
    resolveTokens(recipients: NotificationRecipients): Promise<string[]>;
    sendMessage(recipients: NotificationRecipients, options: IMessageOptions): Promise<INotificationDispatchResult>;
    private send;
    shutdown(): void;
}