/**
 * Webhook delivery service.
 */
import { type WebhookConfig, type WebhookEvent, type WebhookDeliveryResult } from "../models/webhook.js";
/**
 * Service for managing webhook deliveries with retry logic.
 */
export declare class WebhookService {
    private queue;
    private processing;
    private deliveryResults;
    constructor();
    /**
     * Validate webhook configuration.
     */
    validateWebhookConfig(config: WebhookConfig): string[];
    /**
     * Queue a webhook event for delivery.
     */
    queueWebhook(config: Partial<WebhookConfig>, event: WebhookEvent): Promise<string>;
    /**
     * Get delivery results for a webhook.
     */
    getDeliveryResults(webhookId: string): WebhookDeliveryResult[];
    /**
     * Process the webhook queue.
     */
    private processQueue;
    /**
     * Attempt to deliver a webhook.
     */
    private deliverWebhook;
    /**
     * Record a delivery result.
     */
    private recordDeliveryResult;
}