import { IncomingMessage, ServerResponse } from 'node:http';
import { OrgInfo, WebAppManifest } from '../app/index';
/**
 * URL parameter to trigger health check response
 */
export declare const WEBAPP_HEALTH_CHECK_PARAM = "sfProxyHealthCheck";
/**
 * Response header indicating the proxy is active
 */
export declare const WEBAPP_PROXY_HEADER = "X-Salesforce-WebApp-Proxy";
/**
 * Configuration options for the WebApp proxy handler
 */
export interface ProxyOptions {
    debug?: boolean;
    onTokenRefresh?: (updatedOrgInfo: OrgInfo) => void;
}
/**
 * Proxy handler function type
 */
export type ProxyHandler = (req: IncomingMessage, res: ServerResponse, next?: () => void) => Promise<void>;
/**
 * Create proxy request handler
 *
 * @param manifest - WebApp manifest configuration
 * @param orgInfo - Salesforce org information
 * @param target - Target URL for dev server forwarding (optional)
 * @param basePath - Base path for routing (optional)
 * @param options - Proxy configuration options
 * @returns Async request handler function for Node.js HTTP server
 */
export declare function createProxyHandler(manifest: WebAppManifest, orgInfo?: OrgInfo, target?: string, basePath?: string, options?: ProxyOptions): ProxyHandler;
/**
 * Inject Live Preview script into HTML content.
 * Used by the Vite plugin's transformIndexHtml hook and the standalone proxy's sendResponse.
 */
export declare function injectLivePreviewScript(html: string): string;
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