import Twilio from 'twilio'
import GeneralUtils from '../general'
import { GetFormattedNumberReturn } from './types'

const twilioClient = Twilio(process.env.TWILIO_SID, process.env.TWILIO_AUTH_TOKEN)

export const getFormattedNumber = (phoneNumber: string): Promise<GetFormattedNumberReturn> => {
  if (!phoneNumber) {
    return Promise.resolve(null)
  }

  const formattedPhoneNumber = GeneralUtils.formatToPlainPhoneNumber(phoneNumber)

  try {
    // Will return an object that looks like this:
    /*
        {
          callerName: null,
          countryCode: 'CA',
          phoneNumber: '+15145168075',
          nationalFormat: '(514) 516-8075',
          carrier: null,
          addOns: null,
          url: 'https://lookups.twilio.com/v1/PhoneNumbers/+15145168075'
        }
      */
    return twilioClient.lookups.phoneNumbers(formattedPhoneNumber).fetch()
  } catch {
    // Maybe it's a valid phone number but Twilio just didn't liked it...
    if (GeneralUtils.isValidPhoneNumber(formattedPhoneNumber)) {
      return Promise.resolve({ phoneNumber: formattedPhoneNumber })
    } else {
      return Promise.resolve(null)
    }
  }
}