/// <summary>
/// Asynchronously resolves an address to its latitudinal and longitudinal coordinates. May spuriously return no results.
/// </summary>
/// <param name="address">The address to resolve.</param>
/// <param name="token">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>
/// <returns></returns>
internal async Task <Location> ResolveAddressAsync(string address, CancellationToken token)
{
if (address == null)
{
return(new Location());
}
Location longLat;
if (RequestParser.IsLongLat(address, out longLat))
{
return(longLat);
}
var label = RequestParser.GetLocationLabel(ref address);
List <Location> result = new List <Location>();
var client = GetVersionClient();
for (int i = 0; i < 10; i++)
{
result = await client.ResolveAddressInternalAsync(address, token, i == 9).ConfigureAwait(false);
if (result.Any())
{
break;
}
#if !DEBUG
await token.WaitHandle.WaitOneAsync(1000, token).ConfigureAwait(false);
#endif
}
if (result.Count == 0)
{
throw new PrtgRequestException($"Could not resolve '{address}' to an actual address.");
}
var location = result.First();
if (!string.IsNullOrWhiteSpace(label))
{
location.Label = label;
}
return(location);
}