import { AxiosRequestConfig, AxiosResponse } from 'axios';
import { BaseEvent } from '../events/BaseEvent.js';
import { Transport } from './TransportInterface.js';
import { TransportConfig } from './Factory.js';
/**
 * Configuration for HTTP transport.
 */
export declare class HttpConfig {
    url: string;
    options: AxiosRequestConfig;
    token: string | null;
    maxRetries: number;
    initialRetryDelay: number;
    maxRetryDelay: number;
    retryStatusCodes: number[];
    /**
     * Constructs an HttpConfig instance.
     * @param url - The URL for the HTTP transport.
     * @param options - Additional Axios request options.
     * @param token - Optional authorization token.
     * @param maxRetries - Maximum number of retry attempts (default: 3).
     * @param initialRetryDelay - Initial delay in milliseconds before retrying (default: 1000).
     * @param maxRetryDelay - Maximum delay in milliseconds between retries (default: 30000).
     * @param retryStatusCodes - HTTP status codes that should trigger a retry (default: [408, 429, 500, 502, 503, 504]).
     */
    constructor(url: string, options?: AxiosRequestConfig, token?: string | null, maxRetries?: number, initialRetryDelay?: number, maxRetryDelay?: number, retryStatusCodes?: number[]);
}
/**
 * HTTP transport implementation for emitting events.
 */
export declare class HttpTransport implements Transport {
    private url;
    private options;
    private maxRetries;
    private initialRetryDelay;
    private maxRetryDelay;
    private retryStatusCodes;
    /**
     * Constructs an HttpTransport instance.
     * @param config - The HTTP configuration.
     */
    constructor(config: HttpConfig);
    /**
     * Calculates the delay for the next retry attempt using exponential backoff with jitter.
     * @param retryCount - The current retry attempt number (0-based).
     * @returns The delay in milliseconds before the next retry.
     */
    private calculateRetryDelay;
    /**
     * Determines if a request should be retried based on the error.
     * @param error - The error from the failed request.
     * @returns True if the request should be retried, false otherwise.
     */
    private shouldRetry;
    /**
     * Emits an event to the configured HTTP endpoint with retry logic.
     * @param event - The event to emit.
     * @returns A promise that resolves with the Axios response.
     */
    emit<T = AxiosResponse<unknown, unknown>>(event: BaseEvent): Promise<T>;
    /**
     * Creates an HttpTransport instance from a configuration object.
     * @param config - The transport configuration.
     * @returns A new HttpTransport instance.
     * @throws {Error} If the configuration is invalid.
     */
    static fromFile(config: TransportConfig): HttpTransport;
}