import type { DelegationNotification, DelegationNotificationType } from "./types.js";
export interface RouteResult {
    parentSessionId: string;
    notification: DelegationNotification;
}
export interface PendingNotificationRecord {
    parentSessionId: string;
    notification: DelegationNotification;
    stateRoot: ".hivemind";
    retryCount: number;
    maxRetries: number;
    expiresAt: number;
}
export interface NotificationRouterOptions {
    deliver?: (parentSessionId: string, notification: DelegationNotification) => boolean | Promise<boolean>;
    persistPending?: (records: PendingNotificationRecord[]) => void;
}
/** Routes delegation notifications to their owning parent session. */
export declare class NotificationRouter {
    private readonly options;
    private readonly routes;
    private readonly pendingLimit;
    private readonly deliveredKeys;
    private readonly retryState;
    constructor(options?: NotificationRouterOptions);
    /** Register a delegation-to-parent route. */
    register(delegationId: string, parentSessionId: string): void;
    /** Resolve a notification target without broadcasting to unrelated parents. */
    route(notification: DelegationNotification): RouteResult | undefined;
    /** Complete an async delivery attempt without duplicating pending records. */
    private finalizeDelivery;
    /** Check retry/TTL state before queueing a failed delivery. Returns false to drop silently. */
    private shouldQueuePending;
    /** Remove a route after terminal completion. */
    deregister(delegationId: string): void;
    /** Queue a pending notification, bounded to the latest 50 entries. */
    queuePending(delegationId: string, notification: DelegationNotification): void;
    /** Replay and clear pending notifications for a parent in FIFO order. */
    replayPending(parentSessionId: string): DelegationNotification[];
    private persistAllPending;
    /** Format a compact parent-facing notification line. */
    formatNotification(type: DelegationNotificationType, delegationId: string, message: string): string;
    /** Format a TUI system notification line for live delegation append. Extended with rich fields. */
    formatTuiNotification(type: DelegationNotificationType, delegationId: string, agent: string, elapsedMs: number, toolCount?: number, extra?: {
        path?: string;
        fileChanges?: string[];
        completedAt?: string;
    }): string;
    /** Format system notification block for session prompt delivery. Extended with rich fields. */
    formatSystemNotification(type: DelegationNotificationType, delegationId: string, agent: string, elapsedMs: number, toolCount?: number, summary?: string, extra?: {
        path?: string;
        fileChanges?: string[];
        completedAt?: string;
    }): string;
}
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