// lodash

bonuses = bonuses.concat(_.map((data.bonus || {}).virtual_items, (item) => {
  return _.extend(item, {kind: 'virtual-item'});
}));

bonuses = bonuses.concat(_.map((data.bonus || {}).virtual_currency, (item: any) => {
    if (_.isEmpty(item.image_url)) {
        item.image_url = this.projectService.get('virtualCurrencyImage');
    }
    return _.extend(item, {kind: 'virtual-currency'});
}));

// ramda

const getBonus = R.propOr({}, 'bonus');

const addKind = (kind) => R.merge({kind});

const imageUrlIsEmpty = R.compose(
  R.isNil,
  R.prop('image_url')
);

const setDefaultImageIfEmpty = (defaultImage) => R.cond([
  [imageUrlIsEmpty, R.merge({image_url: defaultImage})],
  [R.T, R.identity]
]);

const setImageAndAddKind = R.compose(
  setDefaultImageIfEmpty(this.projectService.get('virtualCurrencyImage')),
  addKind('virtual_currency')
);

const processBonusesItems = R.compose(
  R.map(addKind('virtual-item')),
  R.propOr([], 'virtual_items'),
  getBonus
);

const processBonusesCurrency = R.compose(
  R.map(setImageAndAddKind),
  R.propOr([], 'virtual_currency'),
  getBonus
);

bonuses = bonuses.concat(processBonusesItems(bonuses));
bonuses = bonuses.concat(processBonusesCurrency(bonuses));

// lodash
const attrName = _(item.unsatisfied_user_attributes)
  .map('name')
  .uniq()
  .value()
  .join(', ');

// ramda

const getAttrNamesAsString = R.compose(
  R.join(', '),
  R.uniq,
  R.map(R.prop('name'))
);

const attrName = getAttrNamesAsString(item.unsatisfied_user_attributes);