const _extractEmail = vacation => {
  const approvalRequestExists = !!vacation.planApproval;
  return approvalRequestExists
    ? vacation.planApproval.requester.key
    : vacation.assignee.key;
};

const _extractDataForStatus = vacation => {
  const email = _extractEmail(vacation);
  const { start, end } = vacation;
  return { email, start, end };
}

const getUsersOnVacation = async date => {
  const url = `${process.env.TEMPO_ALLOCATIONS_URL}?assigneeType=user&startDate=${date}&endDate=${date}`;
  const vacations = await request.get(url, {
    auth: {
      user: process.env.TEMPO_USER,
      password: process.env.TEMPO_PASS
    },
    json: true
  });

  return vacations.map(_extractDataForStatus);
};