import { appDefinitionFile } from '../common';
import { constructHierarchy } from './createNodes';

export const getApplicationDefinition = datastore => async () => {
  const exists = await datastore.exists(appDefinitionFile);

  if (!exists) throw new Error('Application definition does not exist');

  const appDefinition = await datastore.loadJson(appDefinitionFile);
  appDefinition.hierarchy = constructHierarchy(
    appDefinition.hierarchy,
  );
  return appDefinition;
};