public PredictionDocument Generate(BalloonDocument balloonDocument, ILogger log)
{
HabHubMessage habHubMessage = new HabHubMessage();
habHubMessage.alt = balloonDocument.Altitude;
habHubMessage.burst = balloonDocument.BurstAltitude;
habHubMessage.lat = balloonDocument.Latitude;
habHubMessage.lon = balloonDocument.Longitude;
habHubMessage.ascent = balloonDocument.AveAscent;
return(CreateHabHubPrediction(habHubMessage).Result);
}
private static async Task <PredictionDocument> CreateHabHubPrediction(HabHubMessage habHubMessage)
{
// First step, tell HabHub.org to run a prediction. This will give us a Uuid to identify the prediction
var content = new FormUrlEncodedContent(habHubMessage.ToParameterDictionary());
var response = await client.PostAsync("http://predict.habhub.org/ajax.php?action=submitForm", content);
if (response.IsSuccessStatusCode)
{
var responseString = await response.Content.ReadAsStringAsync();
var predictionResponse = JsonConvert.DeserializeObject <HabHubPredictionResponse>(responseString);
// get uuid
var uuid = predictionResponse.uuid;
if (String.IsNullOrEmpty(uuid))
{
throw new Exception($"Error getting uuid from habhub. No prediction available. HabHubResponse: {responseString}");
}
// now check the status of generating the prediction
var progressUrl = BuildProgressUrl(uuid);
var isComplete = false;
var counter = 0;
do
{
var progressResponse = await client.GetAsync(progressUrl);
var result = progressResponse.Content.ReadAsStringAsync().Result;
if (result.ToLower().Contains("\"pred_complete\": true"))
{
isComplete = true;
}
else
{
counter++;
System.Threading.Thread.Sleep(50);
}
}while (isComplete == false && counter < 5); // wait a max of 250 ms
// now get the result records
var url = BuildResultsUrl(uuid);
response = await client.GetAsync(url);
if (response.IsSuccessStatusCode)
{
var csv = getSanitizedCsv(response).Result;
var landingRecord = getLastRecord(csv);
var predictionMessage = generatePrediction(landingRecord);
if (predictionMessage != null)
{
return(predictionMessage);
}
}
}
return(null);
}
