RocketChat/Rocket.Chat

import type { IAppServerOrchestrator } from './IAppServerOrchestrator';

let app: IAppServerOrchestrator | undefined;

type Orchestrator = { self: undefined } | (IAppServerOrchestrator & { self: IAppServerOrchestrator });

export const Apps = new Proxy<Orchestrator>({} as Orchestrator, {
    get: (_target, nameProp: keyof IAppServerOrchestrator | 'self'): any => {
        if (nameProp === 'self') {
            return app;
        }

        if (!app) {
            throw new Error(`Orchestrator not found`);
        }

        const prop = app[nameProp];

        if (typeof prop === 'function') {
            return prop.bind(app);
        }

        return prop;
    },
});

export function registerOrchestrator(orch: IAppServerOrchestrator): void {
    app = orch;
}