/// <summary>
/// Check whether phone number is valid or not for defined culture
/// Culture denotes country language code i.e; NP
/// </summary>
/// <param name="number">number (string) to be validated as valid phone number</param>
/// <param name="code">
/// Country code must be provided to verify the phone number based on country.
/// It has two alphabetes which is universal. Code cannot be number, empty string or null.
/// Invalid code will result into invalid phone number.
/// Example of country code; Nepal = NP, United States = US, Denmark = DK
/// </param>
/// <returns>validation result with properties, ErrorMessage (string), Exception and Result (bool)</returns>
public static ValidationResult <bool> IsPhoneNumber(this string number, string code)
{
var operation = number.ValidatePhoneNumber();
if (operation.Result && !string.IsNullOrEmpty(code) && code.Length.Equals(2) && Enum.TryParse(code, out CountryCodes countryCode))
{
var integerValue = CheckPhoneNumber.GetNumbers(number);
operation = ValidateWithCountry(integerValue, code) ? new ValidationResult <bool>(true, null, "Success") : new ValidationResult <bool>(false, null, $"Invalid phone number {number}.");
}
else
{
operation = new ValidationResult <bool>(false, null, $"Invalid country code {code}.");
}
return(operation);
}
/// <summary>
///
/// </summary>
/// <param name="number"></param>
/// <returns></returns>
private static ValidationResult <bool> ValidateWithDictionary(this string number)
{
bool result = false;
foreach (var countryCode in Enum.GetNames(typeof(CountryCodes)))
{
var integerValue = CheckPhoneNumber.GetNumbers(number);
result = ValidateWithCountry(integerValue, countryCode);
if (result)
{
break;
}
}
return(result ? new ValidationResult <bool>(true, null, "Success") : new ValidationResult <bool>(false, null, $"Invalid phone number {number}."));;
}