import { AuthConfig } from "../../auth/types.js";
/**
 * CORS configuration options for SSE transport
 */
export interface CORSConfig {
    /**
     * Access-Control-Allow-Origin header
     * @default "*"
     */
    allowOrigin?: string;
    /**
     * Access-Control-Allow-Methods header
     * @default "GET, POST, OPTIONS"
     */
    allowMethods?: string;
    /**
     * Access-Control-Allow-Headers header
     * @default "Content-Type, Authorization, x-api-key"
     */
    allowHeaders?: string;
    /**
     * Access-Control-Expose-Headers header
     * @default "Content-Type, Authorization, x-api-key"
     */
    exposeHeaders?: string;
    /**
     * Access-Control-Max-Age header for preflight requests
     * @default "86400"
     */
    maxAge?: string;
}
/**
 * Configuration options for SSE transport
 */
export interface SSETransportConfig {
    /**
     * Port to listen on
     */
    port?: number;
    /**
     * Endpoint for SSE events stream
     * @default "/sse"
     */
    endpoint?: string;
    /**
     * Endpoint for receiving messages via POST
     * @default "/messages"
     */
    messageEndpoint?: string;
    /**
     * Maximum allowed message size in bytes
     * @default "4mb"
     */
    maxMessageSize?: string;
    /**
     * Custom headers to add to SSE responses
     */
    headers?: Record<string, string>;
    /**
     * CORS configuration
     */
    cors?: CORSConfig;
    /**
     * Authentication configuration
     */
    auth?: AuthConfig;
}
/**
 * Internal configuration type with required fields except headers
 */
export type SSETransportConfigInternal = Required<Omit<SSETransportConfig, 'headers' | 'auth' | 'cors'>> & {
    headers?: Record<string, string>;
    auth?: AuthConfig;
    cors?: CORSConfig;
};
/**
 * Default CORS configuration
 */
export declare const DEFAULT_CORS_CONFIG: CORSConfig;
/**
 * Default configuration values
 */
export declare const DEFAULT_SSE_CONFIG: SSETransportConfigInternal;