Parsing Through Telephone Numbers Parse swift - swift

Question

In my app I save the user's phone numbers they give me so others can find them and they can find their contacts on the app. But I am having trouble parsing through the phone numbers because users can save phone numbers in different ways:
– Country code, area code, number: +1 (area code) xxx-xxxx
– Country code, number: +1 xxx-xxxx
– Number: xxx-xxxx
The way I save the users number is by adding the area code and number as one long number and save the country code separately. I tried parsing through the telephone numbers taken from Contacts to mimic how I saved the numbers but it does not work. Is there something I am missing? I have copied the code at the bottom:
if accessGranted {
let contactStore = CNContactStore()
let keys = [CNContactPhoneNumbersKey]
let request = CNContactFetchRequest(keysToFetch: keys as [CNKeyDescriptor])
do {
try contactStore.enumerateContacts(with: request, usingBlock: { (contact, error) in
let phoneNumberRaw = contact.phoneNumbers.first?.value.stringValue ?? ""
var phoneNumberRawArray = phoneNumberRaw.components(separatedBy: " ")
var phoneString = ""
if phoneNumberRawArray.count >= 3 { //probably has country code in the front
//remove country code
phoneNumberRawArray.removeFirst()
}
//add to phone string
for phone in phoneNumberRawArray {
phoneString.append(phone)
}
phoneString = phoneString.replacingOccurrences(of: "(", with: "")
phoneString = phoneString.replacingOccurrences(of: " ", with: "")
phoneString = phoneString.replacingOccurrences(of: ")", with: "")
phoneString = phoneString.replacingOccurrences(of: "-", with: "")
self.contactsPhoneNumbers.append(phoneString)
//get country code
for ContactNumber:CNLabeledValue in contact.phoneNumbers
{
let fullNumber = ContactNumber.value
let countryCode = fullNumber.value(forKey: "countryCode") as? String
self.contactsCountryCode.append(countryCode!)
}
})
}
catch {
print("Unable to get contacts")
}
}