import type { IncomingMessage as HTTPIncomingMessage } from 'http';
import { type CloseEvent } from '@hocuspocus/common';
import type WebSocket from 'ws';
import type Document from './Document.ts';
import type { beforeSyncPayload, onStatelessPayload } from './types.ts';
export declare class Connection {
    webSocket: WebSocket;
    context: any;
    document: Document;
    request: HTTPIncomingMessage;
    callbacks: {
        onClose: ((document: Document, event?: CloseEvent) => void)[];
        beforeHandleMessage: (connection: Connection, update: Uint8Array) => Promise<void>;
        beforeSync: (connection: Connection, payload: Pick<beforeSyncPayload, "type" | "payload">) => Promise<void>;
        statelessCallback: (payload: onStatelessPayload) => Promise<void>;
    };
    socketId: string;
    readOnly: boolean;
    /**
     * Constructor.
     */
    constructor(connection: WebSocket, request: HTTPIncomingMessage, document: Document, socketId: string, context: any, readOnly?: boolean);
    /**
     * Set a callback that will be triggered when the connection is closed
     */
    onClose(callback: (document: Document, event?: CloseEvent) => void): Connection;
    /**
     * Set a callback that will be triggered when an stateless message is received
     */
    onStatelessCallback(callback: (payload: onStatelessPayload) => Promise<void>): Connection;
    /**
     * Set a callback that will be triggered before an message is handled
     */
    beforeHandleMessage(callback: (connection: Connection, update: Uint8Array) => Promise<any>): Connection;
    /**
     * Set a callback that will be triggered before a sync message is handled
     */
    beforeSync(callback: (connection: Connection, payload: Pick<beforeSyncPayload, 'type' | 'payload'>) => Promise<any>): Connection;
    /**
     * Send the given message
     */
    send(message: any): void;
    /**
     * Send a stateless message with payload
     */
    sendStateless(payload: string): void;
    /**
     * Graceful wrapper around the WebSocket close method.
     */
    close(event?: CloseEvent): void;
    /**
     * Send the current document awareness to the client, if any
     * @private
     */
    private sendCurrentAwareness;
    /**
     * Handle an incoming message
     * @public
     */
    handleMessage(data: Uint8Array): void;
}
export default Connection;