const billingFields = [
  'billing_address',
  'billing_city',
  'billing_country',
  'billing_postal',
  'customer_first_name',
  'customer_last_name',
  'customer_phone',
  'customer_zip',
  'customer_address',
  'customer_city',
  'customer_country',
  'customer_email',
]

function getFieldsForGateway(data: object) {
  const fields: object = {}

  Object.keys(data).forEach((key: string) => {
    let name: string

    if (billingFields.includes(key)) {
      name = 'BillingInfo[' + key + ']'
    } else {
      name = key
    }

    if (key === 'billing_country') {
      fields['BillingInfo[country]'] = data[key]
    } else {
      fields[name] = data[key]
    }
  })

  return fields
}

export default getFieldsForGateway