public static async Task <HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequestMessage req, TraceWriter log)
{
String dd = JsonConvert.SerializeObject(DateTime.Now);
// parse query parameter
dynamic body = await req.Content.ReadAsStringAsync();
var dict = req.GetQueryNameValuePairs().ToDictionary(x => x.Key, x => x.Value);
if (!(dict.ContainsKey("UserID") || dict.ContainsKey("intervalsArr") || dict.ContainsKey("ActivityName") ||
dict.ContainsKey("DateTime") || dict.ContainsKey("GPSLat") || dict.ContainsKey("GPSLng")))
{
return(req.CreateResponse(HttpStatusCode.OK, "ERROR: missing arguments"));
}
//start processing intervals:
try
{
double[] arr = JsonConvert.DeserializeObject <double[]>(dict["intervalsArr"]);
String UserID = dict["UserID"];
Measurement m = new Measurement(new List <double>(arr), UserID);
await m.SetIsStressed();
String ActivityName = dict["ActivityName"];
var msDate = long.Parse(dict["msDateTime"]);
m.Date = new DateTime(msDate); //DateTime.Parse(dict["dateTime"]);
m.GPSLat = double.Parse(dict["GPSLat"]);
m.GPSLng = double.Parse(dict["GPSLng"]);
//insert measurement to DB
await DBHandler.SendMeasurementToDBAsync(m, ActivityName);
String msg = "your Stress Level: " + m.StressIndex + " you are " +
(m.IsStressed == 0 ? "not stressed" : "stressed");
return(req.CreateResponse(HttpStatusCode.OK, msg));
}
catch (Exception e)
{
return(req.CreateResponse(HttpStatusCode.BadRequest, "ERROR: " + e.ToString()));
}
}
public async Task SetIsStressed()
{
List <int> relaxedStressIndexes = await DBHandler.GetPrevStressIndex(UserID, 0, 10);//await DBHandler.GetPrevRelaxStressIndex(UserID);
List <int> StressedStressIndexes = await DBHandler.GetPrevStressIndex(UserID, 1, 10);
//int stressedStressIndex = await DBHandler.GetPrevStressedStressIndex(UserID);
if (relaxedStressIndexes.Count == 0)
{
IsStressed = 0; //the first measurement for this user.
return;
}
else if (relaxedStressIndexes.Count == 1 && StressedStressIndexes.Count == 0)
{
IsStressed = 1; //second measurement
if (this.StressIndex - relaxedStressIndexes[0] < 10)
{
this.StressIndex = relaxedStressIndexes[0] + 11;
}
return;
}
else
{
double relaxedAvg = relaxedStressIndexes.Average();
if (this.StressIndex <= relaxedAvg || this.StressIndex <= 1.1 * relaxedAvg)
{
this.IsStressed = 0;
}
}
if (StressedStressIndexes.Count > 0) //the user already had a stress moment
{
double stressedAvg = StressedStressIndexes.Average();
if (0.80 * stressedAvg <= this.StressIndex) //stress index is at least 80% of the last stressed moment
{
IsStressed = 1;
}
}
}