import { WidgetType } from '@brainfish-ai/widgets-common';
import { type WidgetOpenOptions } from './WidgetGlobalAPI';
export interface IWidgetInstance {
    widgetKey: string;
    widgetType: WidgetType;
    isWidgetOpen: boolean;
    openWidget(options?: WidgetOpenOptions): void;
    closeWidget(): void;
}
/**
 * Manages the registry of all widget instances
 * Single responsibility: Track and retrieve widget instances
 */
export declare class WidgetRegistry {
    private static instances;
    static register(widgetKey: string, instance: IWidgetInstance): void;
    static getInstance(widgetKey: string): IWidgetInstance | undefined;
    static unregister(widgetKey: string): void;
    static getAllInstances(): IWidgetInstance[];
    static getOpenInstance(): IWidgetInstance | undefined;
    static getClosedPopupInstance(): IWidgetInstance | undefined;
    static clear(): void;
}