func getNumberTypeHelper()

in phonenumbers.go [2039:2087]

• 44 lines of code
• 15 McCabe index (conditional complexity)

func getNumberTypeHelper(nationalNumber string, metadata *PhoneMetadata) PhoneNumberType {
	if !isNumberMatchingDesc(nationalNumber, metadata.GetGeneralDesc()) {
		return UNKNOWN
	}

	if isNumberMatchingDesc(nationalNumber, metadata.GetPremiumRate()) {
		return PREMIUM_RATE
	}
	if isNumberMatchingDesc(nationalNumber, metadata.GetTollFree()) {
		return TOLL_FREE
	}
	if isNumberMatchingDesc(nationalNumber, metadata.GetSharedCost()) {
		return SHARED_COST
	}
	if isNumberMatchingDesc(nationalNumber, metadata.GetVoip()) {
		return VOIP
	}
	if isNumberMatchingDesc(nationalNumber, metadata.GetPersonalNumber()) {
		return PERSONAL_NUMBER
	}
	if isNumberMatchingDesc(nationalNumber, metadata.GetPager()) {
		return PAGER
	}
	if isNumberMatchingDesc(nationalNumber, metadata.GetUan()) {
		return UAN
	}
	if isNumberMatchingDesc(nationalNumber, metadata.GetVoicemail()) {
		return VOICEMAIL
	}

	var isFixedLine = isNumberMatchingDesc(
		nationalNumber, metadata.GetFixedLine())

	if isFixedLine {
		if metadata.GetSameMobileAndFixedLinePattern() {
			return FIXED_LINE_OR_MOBILE
		} else if isNumberMatchingDesc(nationalNumber, metadata.GetMobile()) {
			return FIXED_LINE_OR_MOBILE
		}
		return FIXED_LINE
	}
	// Otherwise, test to see if the number is mobile. Only do this if
	// certain that the patterns for mobile and fixed line aren't the same.
	if !metadata.GetSameMobileAndFixedLinePattern() &&
		isNumberMatchingDesc(nationalNumber, metadata.GetMobile()) {
		return MOBILE
	}
	return UNKNOWN
}