import type { ReactionNotification, ReactionRequest } from '../reaction-contract.js';
type Transport = (request: ReactionRequest, signal: AbortSignal) => Promise<unknown>;
/** One foreground inbox per account/window. Server revisions own read state. */
export declare class ReactionNotifications {
    private transport;
    private scope?;
    private controller;
    private listeners;
    private rows;
    private historyRows;
    private historyInflight;
    private historyUsers;
    private ackGeneration;
    private historyRefreshAgain;
    private historyRefreshedAt;
    historyError: string;
    private version;
    private inflight;
    private highlightRevision;
    private highlight;
    private highlightTimer;
    private viewing;
    private reading;
    private acknowledged;
    private timer?;
    private retryMillis;
    private users;
    error: string;
    hasMore: boolean;
    constructor(transport?: Transport);
    subscribe: (fn: () => void) => () => void;
    getSnapshot: () => number;
    private publish;
    forSource(scope: string | undefined, sourceKey: string | undefined): ReactionNotification[];
    forAccount(scope: string | undefined): ReactionNotification[];
    forHistory(scope: string | undefined): ReactionNotification[];
    acquireHistory(scope: string): () => void;
    refreshHistory(): Promise<void>;
    beginViewing(sourceKey: string, itemUid: string): void;
    beginHistoryViewing(scope: string, sourceKey: string | undefined, itemUid: string, expressionIdentity: string): void;
    hasHistoryHighlight(scope: string, sourceKey: string | undefined, itemUid: string): boolean;
    startHighlights(scope: string, sourceKey: string | undefined, itemUid: string): void;
    highlights(scope: string, sourceKey: string | undefined, itemUid: string | undefined): {
        revision: number;
        sourceKey: string | undefined;
        itemUid: string;
        rows: ReactionNotification[];
        active: boolean;
        expressionIdentity?: string;
    } | undefined;
    canAcknowledge(scope: string, item: ReactionNotification): boolean;
    acquire(scope: string): () => void;
    private stop;
    private visibility;
    refresh(): Promise<void>;
    seen(scope: string, items: readonly ReactionNotification[]): Promise<void>;
}
export declare const reactionNotifications: ReactionNotifications;
export {};
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