public string GetStateNameForZipCode(int zipCode, AddressVerifier verifier)
{
if (!verifier.IsValidZipCode(zipCode))
{
throw new InvalidOperationException($"Invalid ZipCode: {zipCode}");
}
switch (zipCode)
{
case 9:
return("Baku");
case 10:
return("Ganja");
case 11:
return("Izmir");
case 12:
return("Istanbul");
default:
throw new InvalidOperationException($"No state is found with {zipCode}");
}
}
static void Main(string[] args)
{
var stateFinder = new StateFinder();
// For the United States
try{
var addressVerifier = new AddressVerifier();
Console.WriteLine(stateFinder.GetStateNameForZipCode(11, addressVerifier));
Console.WriteLine(stateFinder.GetStateNameForZipCode(9, addressVerifier));
} catch (InvalidOperationException exception) {
Console.WriteLine(exception.Message);
}
// For the Germany
try{
var addressVerifier = new GermanyAddressVerifier();
Console.WriteLine(stateFinder.GetStateNameForZipCode(9, addressVerifier));
} catch (InvalidOperationException exception) {
Console.WriteLine(exception.Message);
}
}
