public void SendNotification(PublishSurveyViewModel surveyToSend)
{
try
{
var surveyToPublish = new X_Survey_Group
{
SurveyId = surveyToSend.SurveyId,
StudyGroupId = surveyToSend.StudyGroupId,
SurveyCreatedTime = DateTime.Now.ToString(),
FrequencyOfNotifications = surveyToSend.FrequencyOfNotifications,
Time1 = surveyToSend.Time1,
Time2 = surveyToSend.Time2
};
db.X_Survey_Groups.Add(surveyToPublish);
db.SaveChanges();
List <string> deviceIds = new List <string>();
var userIdsInGroup = db.X_User_Groups.Where(u => u.StudyGroupId.Equals(surveyToSend.StudyGroupId)).ToList();
foreach (var userId in userIdsInGroup)
{
var devicesForOneUser = db.Devices.Where(d => d.UserId.Equals(userId));
foreach (var device in devicesForOneUser)
{
deviceIds.Add(device.DeviceId);
}
}
var survey = db.Surveys.Find(surveyToSend.SurveyId);
String messageToDisplay = "";
if (survey != null)
{
if (survey.SurveyType == SurveyType.Message)
{
var question = db.X_Survey_Questions.Where(q => q.SurveyId == survey.Id).FirstOrDefault();
messageToDisplay = question.Question.QuestionText;
}
else
{
messageToDisplay = survey.SurveyName + " published!!";
}
}
SurveyPushNotification notification = new SurveyPushNotification
{
RegisteredDeviceIds = deviceIds,
Data = new PushNotificationData
{
Message = messageToDisplay,
Time = DateTime.Now.ToString()
}
};
if (deviceIds.Count > 0)
{
var applicationID = "AIzaSyC0Ian0Yr7JK9tZEi7-dZ3GcO-2dzomG1M";
// applicationID means google Api key
var SENDER_ID = "283278634859";
// SENDER_ID is nothing but your ProjectID (from API Console- google code)
string serializedNotification = JsonConvert.SerializeObject(notification);
WebRequest tRequest;
tRequest = WebRequest.Create("https://android.googleapis.com/gcm/send");
tRequest.Method = "post";
tRequest.ContentType = " application/json";
tRequest.Headers.Add(string.Format("Authorization: key={0}", applicationID));
tRequest.Headers.Add(string.Format("Sender: id={0}", SENDER_ID));
Byte[] byteArray = Encoding.UTF8.GetBytes(serializedNotification);
tRequest.ContentLength = byteArray.Length;
Stream dataStream = tRequest.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();
WebResponse tResponse = tRequest.GetResponse();
dataStream = tResponse.GetResponseStream();
StreamReader tReader = new StreamReader(dataStream);
String sResponseFromServer = tReader.ReadToEnd(); //Get response from GCM server.
Console.WriteLine(sResponseFromServer);
tReader.Close();
dataStream.Close();
tResponse.Close();
}
}
catch (Exception e)
{
}
}
public IHttpActionResult PublishSurvey(PublishSurveyViewModel survey)
{
var surveyDetails = db.Surveys.Find(survey.SurveyId);
if (surveyDetails != null)
{
if (surveyDetails.SurveyType == SurveyType.Message)
{
//based on recurrence Add to X_Survey_Group
try
{
switch (survey.FrequencyOfNotifications)
{
case Frequency.Daily:
{
String[] times = survey.Time1.Split(':');
String cornExpression = times[1] + " " + times[0] + " * * * ";
RecurringJob.AddOrUpdate(survey.SurveyId + "", () => SendNotification(survey), cornExpression, TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time"));
break;
}
case Frequency.Hourly:
{
SendNotification(survey);
RecurringJob.AddOrUpdate(survey.SurveyId + "", () => SendNotification(survey), Cron.Hourly, TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time"));
break;
}
case Frequency.TwiceDaily:
{
String[] times = survey.Time1.Split(':');
String cornExpression = times[1] + " " + times[0] + " * * *";
String[] times2 = survey.Time2.Split(':');
String cornExpression2 = times2[1] + " " + times2[0] + " * * *";
RecurringJob.AddOrUpdate(survey.SurveyId + "First", () => SendNotification(survey), cornExpression, TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time"));
RecurringJob.AddOrUpdate(survey.SurveyId + "Second", () => SendNotification(survey), cornExpression2, TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time"));
break;
}
}
}
catch (DbUpdateException)
{
if (SurveyExists(survey.SurveyId))
{
return(Conflict());
}
else
{
throw;
}
}
}
else
{
//add to X_Survey_Group and send right now
SendNotification(survey);
}
}
else
{
return(NotFound());
}
return(null);
}
