import { hostname } from 'os';

export function getInstanceName() {
  return hostname();
}

export function getSelfInstanceRouteKey(key: string) {
  return getAppInstanceRouteKey(key, getInstanceName());
}

export function getAppInstanceRouteKey(key: string, appInstance?: string) {
  return appInstance ? `${key}.${appInstance}` : key;
}

export function getSelfInstanceQueueKey(key: string) {
  return getAppInstanceQueueKey(key, getInstanceName());
}

export function getAppInstanceQueueKey(key: string, appInstance?: string) {
  return appInstance ? `${key}.${appInstance}` : key;
}