Invoicing

SketchSystems.spec

Invoicing
  start
    fetch -> awaiting_send
    migrated -> done
  awaiting_send
    begin -> sending
  sending
    skip -> skipped
    done -> awaiting_import
    error -> error_sending
  error_sending
    reset -> awaiting_send
  awaiting_import
    begin -> importing
  importing
    error -> error_importing
    done -> done
  error_importing
    reset -> awaiting_import
  done
  skipped
  invalid

SketchSystems_prototype.js

function render(model){
  let current_state_name = model.active_states[0].name;
  return $("h1",
           {style: {color: "darkBlue"}},
           `The current state is: ${current_state_name}`);
}