import type { Connection } from "vscode-languageserver";
import type { DiagramImplementation } from "./diagramImplementation.js";
import type { RemoteMessagePayload } from "@hylimo/diagram-protocol";
/**
 * Manages the layouted diagrams. Base class for the remote and local implementation.
 */
export declare abstract class DiagramImplementationManager {
    private readonly connection;
    private readonly id;
    /**
     * Creates a new LayoutedDiagramManager.
     * Listens to remote notifications and requests on the given connection.
     *
     * @param connection the connection to sent and receive messages
     * @param id the id of this language server
     */
    constructor(connection: Connection, id: number);
    /**
     * Handles a remote notification.
     *
     * @param message the message to handle
     * @param from the id of the sender language server
     */
    protected abstract handleNotification(message: RemoteMessagePayload, from: number): Promise<void>;
    /**
     * Handles a remote request.
     *
     * @param message the request to handle
     * @param from the id of the sender language server
     * @returns the response to send back
     */
    protected abstract handleRequest(message: RemoteMessagePayload, from: number): Promise<RemoteMessagePayload>;
    /**
     * Gets a diagram implementation for the given id.
     * May return the same instance as the old parameter.
     * Must not invalidate existing implementations for the same id.
     *
     * @param id the id of the diagram
     * @param old the old diagram implementation
     * @returns the new diagram implementation
     */
    abstract getNewDiagramImplementation(id: string, old?: DiagramImplementation): DiagramImplementation;
    /**
     * Sends a remote notification.
     *
     * @param payload the payload to send
     * @param to the id of the receiver language server
     */
    sendNotification(payload: RemoteMessagePayload, to: number): Promise<void>;
    /**
     * Sends a remote request.
     *
     * @param payload the payload to send
     * @param to the id of the receiver language server
     * @returns the response sent by the receiver
     */
    sendRequest(payload: RemoteMessagePayload, to: number): Promise<RemoteMessagePayload>;
}
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