/*
  General utilities for handling processing of delta changes from eureka.
*/
export function arrayOrObj(mysteryValue) {
  return Array.isArray(mysteryValue) ? mysteryValue : [mysteryValue]
}

export function findInstance(a) {
  return (b) => a.hostName === b.hostName && a.port.$ === b.port.$
}

export function normalizeDelta(appDelta) {
  return arrayOrObj(appDelta).map((app) => {
    app.instance = arrayOrObj(app.instance)
    return app
  })
}