/**
 * Session-Aware Notification Queue
 *
 * Intelligent notification delivery system that routes notifications
 * to the correct chat sessions using MCP session IDs and contextual relevance.
 */
import { Notification, NotificationConfig } from '../types/notifications.js';
export declare class NotificationQueue {
    private static instance;
    private notifications;
    private globalNotifications;
    private sessionManager;
    private config;
    private constructor();
    static getInstance(config?: Partial<NotificationConfig>): NotificationQueue;
    /**
     * Add a notification to the queue
     */
    add(notification: Omit<Notification, 'id' | 'timestamp'>): void;
    /**
     * Add notification to a specific session
     */
    private addToSession;
    /**
     * Add notification using contextual routing logic
     */
    private addWithContextualRouting;
    /**
     * Get notifications for current session and clear them
     */
    getAndClear(): Notification[];
    /**
     * Get notifications for a specific session and clear them
     */
    getAndClearForSession(sessionId: string): Notification[];
    /**
     * Filter global notifications by contextual relevance to current session
     */
    private filterGlobalNotificationsByContext;
    /**
     * Remove stale notifications
     */
    private filterStaleNotifications;
    /**
     * Assess whether a notification should be delivered
     */
    private assessDelivery;
    /**
     * Format notifications for display
     */
    formatForResponse(notifications?: Notification[]): string;
    /**
     * Get icon for notification type
     */
    private getNotificationIcon;
    /**
     * Generate unique notification ID
     */
    private generateNotificationId;
    /**
     * Trim session notifications to prevent memory leaks
     */
    private trimSessionNotifications;
    /**
     * Clean up old sessions and notifications
     */
    cleanupOldSessions(): void;
    /**
     * Get queue statistics for monitoring
     */
    getStats(): {
        sessionCount: number;
        totalNotifications: number;
        globalNotifications: number;
        averageNotificationsPerSession: number;
    };
}
//# sourceMappingURL=NotificationQueue.d.ts.map