import { type AskRequestSnapshot, type AskResult, type PushSubscriptionPayload } from "../protocol.js";
import type { RequestOptions as WebPushRequestOptions } from "web-push";
import { type FcmSender } from "./fcmSender.js";
import type { PushStore } from "./pushStore.js";
import type { SessionStore } from "./sessionStore.js";
export interface PushSender {
    sendNotification(subscription: PushSubscriptionPayload, payload: string, options?: WebPushRequestOptions): Promise<unknown>;
}
export declare class PushNotifier {
    private readonly pushStore;
    private readonly sessionStore;
    private readonly pushSender;
    private readonly fcmSender?;
    constructor(pushStore: PushStore, sessionStore: SessionStore, pushSender?: PushSender, fcmSender?: FcmSender | undefined);
    notifyNewPendingAsk(request: AskRequestSnapshot): Promise<void>;
    /**
     * Data-only fanout after an ask leaves the pending state (answered, cancelled, or expired) so
     * clients can dismiss any still-visible notification for it. Never renders a user-facing alert.
     */
    notifyAskResolved(result: AskResult): Promise<void>;
    private notifyWebPushSubscriptions;
    private notifyFcmTokens;
    private findSession;
    private buildNewAskPayload;
}
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