import { ExtensionMessage } from './messaging/ExtensionMessageTypes';
import { ExtensionVowelController } from './ExtensionVowelController';
/**
 * Routes messages from content scripts to appropriate handlers
 *
 * @example
 * ```typescript
 * const router = new ExtensionMessageRouter(controller);
 *
 * chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
 *   router.route(message, sender, sendResponse);
 *   return true;
 * });
 * ```
 */
export declare class ExtensionMessageRouter {
    private controller;
    constructor(controller: ExtensionVowelController);
    /**
     * Route incoming message to appropriate handler
     *
     * @param message - Incoming message
     * @param sender - Message sender information
     * @param sendResponse - Response callback function
     */
    route(message: ExtensionMessage, sender: chrome.runtime.MessageSender, sendResponse: (response?: any) => void): Promise<void>;
    /**
     * Handle START_SESSION message
     */
    private handleStartSession;
    /**
     * Handle STOP_SESSION message
     */
    private handleStopSession;
    /**
     * Handle GET_STATE message
     */
    private handleGetState;
    /**
     * Handle UPDATE_CONFIG message
     */
    private handleUpdateConfig;
    /**
     * Handle SEND_USER_MESSAGE message
     */
    private handleSendUserMessage;
    /**
     * Handle INTERRUPT message
     */
    private handleInterrupt;
}
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