const methods = {}
const constructors = {}
const names = []

export function registerMethods (name, m) {
  if (Array.isArray(name)) {
    for (let _name of name) {
      registerMethods(_name, m)
    }
    return
  }

  if (typeof name === 'object') {
    for (let [ _name, _m ] of Object.entries(name)) {
      registerMethods(_name, _m)
    }
    return
  }

  addMethodNames(Object.keys(m))
  methods[name] = Object.assign(methods[name] || {}, m)
}

export function getMethodsFor (name) {
  return methods[name] || {}
}

export function getMethodNames () {
  return [ ...new Set(names) ]
}

export function addMethodNames (_names) {
  names.push(..._names)
}

export function registerConstructor (name, setup) {
  constructors[name] = setup
}

export function getConstructor (name) {
  return constructors[name] ? { setup: constructors[name], name } : {}
}