/// <inheritdoc />
public string PrettifyE164(string phoneNumber)
{
_logger.LogDebug($"Prettifying phone number: {phoneNumber}");
// Match the hone number with the E.164 format
Match parsedNumber = MatchSingleE164Number(phoneNumber);
// Extract the country code
string countryCode = ExtractCountryCodeFromE164(parsedNumber);
string subscriberNumber = ExtractSubscriberNumberFromE164(parsedNumber);
_logger.LogDebug($"Getting pretty formats for country code: {countryCode}");
// Get the list of pretty formats for the country code
var prettyFormats = new List <E164Format>(_formatStore.GetFormatsByCountry(countryCode));
// Find the matching format
E164Format matchedFormat = FindMatchingFormat(subscriberNumber, prettyFormats);
if (matchedFormat == null)
{
throw new ArgumentException($"Invalid phone number supplied: {phoneNumber}");
}
_logger.LogDebug($"Found matching format for phone number ({phoneNumber}): {matchedFormat.Format}");
// Appply matched format
string formattedNumber = FormatE164(subscriberNumber, matchedFormat);
return(formattedNumber);
}
/// <summary>
/// Applys a pretty format to a phone number
/// </summary>
private string FormatE164(string subscriberNumber, E164Format format)
{
var formattedNumberBuilder = new StringBuilder();
int subscriberIndex = 0;
for (int i = 0; i < format.Format.Length; i++)
{
var currentFormatCharacter = format.Format[i];
// Start with the leading 0, if there
if (currentFormatCharacter == '0' && i == 0)
{
formattedNumberBuilder.Append(currentFormatCharacter);
}
// Or, if format has a space, just add it
else if (currentFormatCharacter == ' ')
{
formattedNumberBuilder.Append(' ');
}
// Otherwise, just add the subscriber character we have got to
else
{
formattedNumberBuilder.Append(subscriberNumber[subscriberIndex]);
subscriberIndex++;
}
}
return(formattedNumberBuilder.ToString());
}
