earnings/Domain/newUseCase.js

const newEarning = require("./newEarning")
const newPresenter = require("./newPresenter")

function newUseCase(scene, { rate }) {
  const earning = newEarning(rate)
  const presenter = newPresenter(scene, earning)
  
  presenter.render()

  return {
    execute() {
      presenter.increment()
    }
  }
}
module.exports = newUseCase