import { EventEmitter } from 'events';
import { RequestInit } from 'node-fetch';
import type { DeviceInfo } from './types.js';
import { Device } from './Device.js';
import { TrailEngine, TrailEngineOptions, RunTrailOptions } from './TrailEngine.js';
export type HerdClientOptions = {
    baseUrl?: string;
    token?: string;
} | {
    baseUrl?: string;
    apiKey: string;
};
declare class Trail {
    private client;
    private trailIdentifier;
    private version?;
    constructor(client: HerdClient, trailIdentifier: string, version?: string | undefined);
    /**
     * Run a trail action
     * @param actionOrParams Either the action name to run, or the parameters for the default action
     * @param params Optional parameters if an action name is provided
     */
    run(actionOrParams?: string | Record<string, any>, params?: Record<string, any>): Promise<any>;
}
export declare class HerdClient extends EventEmitter {
    private baseUrl;
    private natsUrl;
    private token;
    private deviceMap;
    private natsConnection;
    private natsServiceUserJwt;
    private natsAccountId;
    private jc;
    private _initialized;
    private _trailEngine;
    constructor(options: HerdClientOptions);
    init(): Promise<void>;
    /**
     * Make an HTTP request to the Herd API
     */
    request(path: string, options?: RequestInit): Promise<any>;
    /**
     * Get the base URL for the Herd API
     */
    getBaseUrl(): string;
    /**
     * Get current user information
     */
    me(): Promise<{
        id: string;
        email: string;
        natsUrl?: string;
    }>;
    /**
     * Get cache encryption key
     */
    getCacheKey(): Promise<string>;
    /**
     * Initialize the client by fetching the NATS service user JWT and connecting to NATS
     */
    initialize(): Promise<void>;
    private connectToNats;
    /**
     * Send a command to a device via NATS
     */
    private sendNatsCommand;
    /**
     * List all available devices
     */
    listDevices(): Promise<Device[]>;
    /**
     * Get a specific device by ID
     */
    getDevice(deviceId: string): Promise<Device>;
    /**
     * Register a new device
     */
    registerDevice(options: {
        deviceId: string;
        name?: string;
        type: 'browser' | 'headless';
    }): Promise<DeviceInfo>;
    /**
     * Send an RPC command to a device
     */
    sendCommand(deviceId: string, command: string, params?: Record<string, any>): Promise<unknown>;
    /**
     * Subscribe to all events from a device
     */
    subscribeToDeviceEvents(deviceId: string, callback: (event: any) => void): () => void;
    /**
     * Subscribe to a specific event from a device
     */
    subscribeToDeviceEvent(deviceId: string, eventName: string, callback: (event: any) => void): () => void;
    /**
     * Close the client and clean up resources
     */
    close(): Promise<void>;
    /**
     * Check if the client has been initialized
     */
    isInitialized(): boolean;
    /**
     * Get the trail engine instance, creating it if it doesn't exist
     * @param options Options for the trail engine
     */
    trails(options?: TrailEngineOptions): TrailEngine;
    /**
     * Get a trail instance for running actions
     * @param trailIdentifier The trail name or path
     * @param version Optional version for remote trails
     */
    trail(trailIdentifier: string, version?: string): Trail;
    /**
     * Run a trail by identifier (internal implementation used by Trail class)
     * @param trailIdentifier Local path or organization/trail identifier
     * @param options Run options including version if specified
     */
    runTrail(trailIdentifier: string, options?: RunTrailOptions & {
        version?: string;
    }): Promise<any>;
}
export {};