/// <summary>
/// Extract just the parts we are interested in from the information returned from Google.
/// </summary>
/// <param name="googleDirections">The information we got from Google.</param>
/// <returns>The information this API will return.</returns>
Directions convertDirections(GoogleDirections googleDirections)
{
Directions mapDirections = new Directions();
// Parse out Google map directions to flatten the "routes" and "legs" stuff as we will only support one leg.
if (googleDirections == null || !cs_goodStatus.Equals(googleDirections.status, StringComparison.OrdinalIgnoreCase))
{
mapDirections.errorMessage = cs_errorMsg;
return(mapDirections);
}
if (googleDirections.routes != null && googleDirections.routes.Length > 0)
{
if (googleDirections.routes[0] != null && googleDirections.routes[0].legs.Length > 0)
{
if (googleDirections.routes[0].legs[0].steps != null && googleDirections.routes[0].legs[0].steps.Length > 0)
{
mapDirections.steps = new string[googleDirections.routes[0].legs[0].steps.Length];
for (int i = 0; i < googleDirections.routes[0].legs[0].steps.Length; i++)
{
mapDirections.steps[i] = googleDirections.routes[0].legs[0].steps[i].html_instructions;
}
mapDirections.distance = googleDirections.routes[0].legs[0].distance.text;
mapDirections.duration = googleDirections.routes[0].legs[0].duration.text;
}
}
}
return(mapDirections);
}
/// <summary>
/// Get the directions.
/// </summary>
/// <param name="from">Starting point.</param>
/// <param name="to">Ending point.</param>
/// <returns>Directions object. May be empty on error.</returns>
public async Task <Directions> getDirections(string from, string to)
{
Directions dirs = null;
if (c_sGoogleBaseUrl == null)
{
c_sGoogleBaseUrl = ConfigurationManager.AppSettings["GoogleDirsUrl"];
}
var restClient = new RestClient(c_sGoogleBaseUrl);
restClient.Authenticator = new HttpBasicAuthenticator("", "");
restClient.UserAgent = "reyes-test-app";
var request = new RestRequest(Method.GET);
request.Resource = "json";
request.AddParameter("origin", from);
request.AddParameter("destination", to);
request.AddParameter("key", "AIzaSyCF7jWLLOrJbTj1_0c946vgBgB1ATmUkOA");
Uri uri = restClient.BuildUri(request);
IRestResponse response = await restClient.ExecuteTaskAsync(request);
if (response.ResponseStatus == ResponseStatus.Completed)
{
string result = response.Content;
GoogleDirections gDirs = JsonConvert.DeserializeObject <GoogleDirections>(result);
dirs = convertDirections(gDirs);
}
return(dirs);
}
