/**
 * Service Worker Manager for ConversionIQ SDK
 * Handles offline event queuing and background synchronization
 */
import { ConversionIQConfig, QueuedEvent } from '../types/index';
export declare class ServiceWorkerManager {
    private config;
    private swConfig;
    private registration;
    private isSupported;
    constructor(config: ConversionIQConfig);
    /**
     * Initialize Service Worker if supported and enabled
     */
    init(): Promise<void>;
    /**
     * Queue event for offline processing
     */
    queueOfflineEvent(event: QueuedEvent): Promise<void>;
    /**
     * Trigger background sync for queued events
     */
    triggerSync(): Promise<void>;
    /**
     * Get offline queue statistics
     */
    getOfflineStats(): Promise<{
        queueSize: number;
        lastSync: number;
    }>;
    /**
     * Clear offline queue
     */
    clearOfflineQueue(): Promise<void>;
    /**
     * Setup message handling between main thread and service worker
     */
    private setupMessageHandling;
    /**
     * Setup background sync registration
     */
    private setupBackgroundSync;
    /**
     * Send message to service worker and wait for response
     */
    private sendMessageToSW;
    /**
     * Check if Service Worker features are supported
     */
    isServiceWorkerSupported(): boolean;
    /**
     * Generate Service Worker code for deployment
     */
    static generateServiceWorkerCode(config?: Partial<ConversionIQConfig>): string;
    /**
     * Clean up Service Worker
     */
    destroy(): Promise<void>;
}
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