import type { ActionInfo, ConnectElgatoStreamDeckSocketFn, RegistrationInfo, UICommand, UIEventMap } from "../api";
import { EventEmitter } from "../common/event-emitter";
declare global {
    interface Window {
        /**
         * Connects to the Stream Deck, enabling the UI to interact with the plugin, and access the Stream Deck API.
         * @param port Port to be used when connecting to Stream Deck.
         * @param uuid Identifies the UI; this must be provided when establishing the connection with Stream Deck.
         * @param event Name of the event that identifies the registration procedure; this must be provided when establishing the connection with Stream Deck.
         * @param info Information about the Stream Deck application and operating system.
         * @param actionInfo Information about the action the UI is associated with.
         */
        connectElgatoStreamDeckSocket: ConnectElgatoStreamDeckSocketFn;
    }
}
/**
 * Connection used by the UI to communicate with the plugin, and Stream Deck.
 */
declare class Connection extends EventEmitter<ExtendedUIEventMap> {
    /**
     * Determines whether the connection can connect;
     */
    private canConnect;
    /**
     * Underlying web socket connection.
     */
    private readonly connection;
    /**
     * Underlying connection information provided to the plugin to establish a connection with Stream Deck.
     */
    private readonly info;
    /**
     * Initializes a new instance of the {@link Connection} class.
     */
    constructor();
    /**
     * Gets the connection's information.
     * @returns The information used to establish the connection.
     */
    getInfo(): Promise<ConnectionInfo>;
    /**
     * Sends the commands to the Stream Deck, once the connection has been established and registered.
     * @param command Command being sent.
     * @returns `Promise` resolved when the command is sent to Stream Deck.
     */
    send(command: UICommand): Promise<void>;
    /**
     * Establishes a connection with Stream Deck, allowing for the UI to send and receive messages.
     * @param port Port to be used when connecting to Stream Deck.
     * @param uuid Identifies the UI; this must be provided when establishing the connection with Stream Deck.
     * @param event Name of the event that identifies the registration procedure; this must be provided when establishing the connection with Stream Deck.
     * @param info Information about the Stream Deck application, the plugin, the user's operating system, user's Stream Deck devices, etc.
     * @param actionInfo Information for the action associated with the UI.
     * @returns A promise that is resolved when a connection has been established.
     */
    private connect;
    /**
     * Attempts to emit the {@link ev} that was received from the {@link Connection.connection}.
     * @param ev Event message data received from Stream Deck.
     */
    private tryEmit;
}
/**
 * Information about the connection with Stream Deck.
 */
export type ConnectionInfo = {
    /**
     * Unique identifier of the UI.
     */
    uuid: string;
    /**
     * Information about the Stream Deck application, the plugin, the user's operating system, user's Stream Deck devices, etc.
     */
    info: RegistrationInfo;
    /**
     * Information about the action associated with the UI.
     */
    actionInfo: ActionInfo;
};
/**
 * An extended event map that includes connection events.
 */
type ExtendedUIEventMap = UIEventMap & {
    /**
     * Occurs when a connecting is being established.
     */
    connecting: [info: RegistrationInfo, actionInfo: ActionInfo];
    /**
     * Occurs when a connection is established.
     */
    connected: [info: RegistrationInfo, actionInfo: ActionInfo];
};
export declare const connection: Connection;
export {};