import type { ChangeCause, ChangeReportMessage, DeferredResponseMessage, ErrorResponseMessage, ProactiveEventMessage, Property, ResponseMessage, SceneEventMessage } from "./types.js";
/** A message that would be dropped on its way to Alexa, refused where it is built. */
export declare class MessageError extends Error {
    readonly endpointId: string;
    readonly problem: string;
    constructor(endpointId: string, problem: string);
}
interface Envelope {
    endpointId: string;
    /** Default: a new version 4 UUID, which is what Alexa recommends (message-guide.html, "Header object"). */
    messageId?: string;
}
interface Answer extends Envelope {
    /** The correlationToken of the directive that is answered. */
    correlationToken: string;
}
export interface ResponseFields extends Answer {
    /** Default: "Response". */
    name?: string;
    /** Default: "Alexa". An interface with a response of its own names it: Alexa.SecurityPanelController, Arm.Response. */
    namespace?: string;
    payload?: Record<string, unknown>;
    /** The state of the endpoint after the directive. */
    context?: readonly Property[];
}
/**
 * The answer to a directive (alexa-response.html, "Synchronous response"). An endpoint with nothing to report
 * answers with an empty list of properties, not without a context (state-reporting-for-smart-home-addons.html,
 * "Directive response example for a property that isn't retrievable").
 */
export declare function response(fields: ResponseFields): ResponseMessage;
/** The answer to ReportState: every retrievable property of the endpoint. */
export declare function stateReport(fields: Answer & {
    context?: readonly Property[];
}): ResponseMessage;
/**
 * "The directive arrived, the answer follows": no context, the state is in the Response that follows
 * (alexa-response.html, "Deferred response example").
 */
export declare function deferredResponse(fields: Answer & {
    estimatedDeferralInSeconds?: number;
}): DeferredResponseMessage;
export interface ErrorResponseFields extends Answer {
    /** "ENDPOINT_UNREACHABLE" */
    type: string;
    /** For the log of the skill. */
    message: string;
    /** The fields a type adds to the payload: validRange, currentDeviceMode. */
    extra?: Record<string, unknown>;
    /** Default: the namespace the type is documented under, see errorNamespace(). */
    namespace?: string;
}
/** The answer to a directive the endpoint could not follow (alexa-errorresponse.html). */
export declare function errorResponse(fields: ErrorResponseFields): ErrorResponseMessage;
export interface ChangeReportFields extends Envelope {
    /** Default: "PHYSICAL_INTERACTION". */
    cause?: ChangeCause;
    /** The properties that changed, at least one. */
    changed: readonly Property[];
    /** The other properties of the endpoint, as they are now. */
    context?: readonly Property[];
}
/** The same property of the same instance, whatever its value. */
export declare const sameProperty: (a: Property, b: Property) => boolean;
/**
 * A change of state nobody asked for. The header has no correlationToken (message-guide.html, "Header object").
 * A property that changed is left out of the context: it is reported in one of the two (same page, "Context
 * object"). Throws MessageError when nothing changed: Alex2MQTT drops such a report without a word.
 */
export declare function changeReport(fields: ChangeReportFields): ChangeReportMessage;
export interface SceneEventFields extends Answer {
    /** true: ActivationStarted. false: DeactivationStarted. */
    activated: boolean;
    /** Default: "VOICE_INTERACTION", a scene is started by a directive. */
    cause?: ChangeCause;
    /** When the scene started. Default: now. */
    timestamp?: string | Date;
}
/** The answer to Activate and Deactivate of a scene (alexa-scenecontroller.html). */
export declare function sceneEvent(fields: SceneEventFields): SceneEventMessage;
export interface DoorbellPressFields extends Envelope {
    /** Default: "PHYSICAL_INTERACTION", somebody pressed the button. */
    cause?: ChangeCause;
    /** When the button was pressed. Default: now. */
    timestamp?: string | Date;
}
/** Somebody rang (alexa-doorbelleventsource.html). */
export declare function doorbellPress(fields: DoorbellPressFields): ProactiveEventMessage;
export interface SimpleEventFields extends Envelope {
    /** The instance of Alexa.SimpleEventSource that raises the event. */
    instance: string;
    /** The id of the event as discovery listed it: "Button.SinglePush.1". */
    id: string;
    /** When the event happened. Default: now. */
    timestamp?: string | Date;
}
/** An event of a button or a sensor that routines start on (alexa-simpleeventsource.html). */
export declare function simpleEvent(fields: SimpleEventFields): ProactiveEventMessage;
export {};