import { M as MCPOptions } from '../types-CmbeEBKR.mjs';

type EventCallback = (event: MessageEvent) => void;
/**
 * Options for the SSE Client
 */
interface SSEOptions extends MCPOptions {
    eventsEndpoint?: string;
    reconnectTimeout?: number;
    maxReconnectAttempts?: number;
    sseOptions?: EventSourceInit;
    eventTypes?: string[];
    heartbeatInterval?: number;
    connectionTimeout?: number;
    autoReconnect?: boolean;
}
/**
 * Connection status for SSE client
 */
declare enum SSEConnectionStatus {
    DISCONNECTED = "disconnected",
    CONNECTING = "connecting",
    CONNECTED = "connected",
    RECONNECTING = "reconnecting",
    ERROR = "error"
}
/**
 * SSE Client for handling Server-Sent Events
 */
declare class MCPSSEClient {
    private baseUrl;
    private apiKey?;
    private token?;
    private tenantId?;
    private eventSource;
    private eventHandlers;
    private reconnectTimeout;
    private maxReconnectAttempts;
    private reconnectAttempts;
    private eventsEndpoint;
    private sseOptions;
    private status;
    private eventTypes;
    private lastEventId;
    private heartbeatInterval;
    private heartbeatTimer;
    private connectionTimeout;
    private connectionTimer;
    private autoReconnect;
    private statusHandlers;
    /**
     * Create a new SSE client
     */
    constructor(options: SSEOptions);
    /**
     * Get the current connection status
     */
    getStatus(): SSEConnectionStatus;
    /**
     * Register a handler for connection status changes
     */
    onStatusChange(handler: (status: SSEConnectionStatus) => void): () => void;
    /**
     * Update connection status and notify handlers
     */
    private setStatus;
    /**
     * Connect to the SSE endpoint
     */
    connect(): void;
    /**
     * Disconnect from the SSE endpoint
     */
    disconnect(): void;
    /**
     * Register an event handler for a specific event type
     */
    on(eventType: string, callback: EventCallback): () => void;
    /**
     * Remove all event handlers for a specific event type
     */
    off(eventType: string): void;
    /**
     * Attempt to reconnect with exponential backoff
     */
    private attemptReconnect;
    /**
     * Start heartbeat to detect connection issues
     */
    private startHeartbeat;
    /**
     * Handle SSE connection open
     */
    private handleOpen;
    /**
     * Handle SSE connection error
     */
    private handleError;
    /**
     * Handle connection initialization error
     */
    private handleConnectionError;
    /**
     * Handle generic message event
     */
    private handleMessage;
    /**
     * Handle specific event type
     */
    private handleEvent;
    /**
     * Dispatch an event to all registered handlers
     */
    private dispatchEvent;
}
/**
 * Create a new SSE client
 */
declare function createSSEClient(options: SSEOptions): MCPSSEClient;

export { MCPSSEClient, SSEConnectionStatus, type SSEOptions, createSSEClient };