public async Task GetWaterData(DateTime start, DateTime end)
{
try
{
// Enable loading screen
LoadingViewEnable();
Debug.WriteLine("GET WATER DATA: " + start.ToString() + " - " + end.ToString());
Device.BeginInvokeOnMainThread(() => { LoadingLabel.Text = "Getting water data..."; });
DateTime startTime = start;
DateTime endTime = end;
// Set timespan - minusSpan (UTC - FINNISH TIME) is to get UTC data relative to finnish time datePickers
// e.g. 10/10/2018 00:00:00 - 11/10/2018 00:00:00 FI TIME (+2) is 9/10/2018 22:00:00 - 10/10/2018 22:00:00 UTC TIME
DateTime FinlandTime = TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, App.FinlandTimeZone);
TimeSpan minusSpan = DateTime.UtcNow - FinlandTime;
startTime = new DateTime(start.Year, start.Month, start.Day, 0, 0, 0).Add(minusSpan);
endTime = new DateTime(end.Year, end.Month, end.Day).Add(new TimeSpan(23, 59, 59).Add(minusSpan));
// Clear old datalists
SingletonWaterFlowDataList dataListFlow = SingletonWaterFlowDataList.Instance;
SingletonWaterLevelDataList dataListLevel = SingletonWaterLevelDataList.Instance;
dataListFlow.Clear();
dataListLevel.Clear();
// Get Data and parse it
await Task.Run(async() =>
{
String startTm = String.Format("{0:s}", startTime);
String endTm = String.Format("{0:s}", endTime);
var WaterFlowDataRequest = new GraphQLRequest
{
Query = "{ water_data_query( start_time: \""
+ startTm + "\" end_time: \""
+ endTm + "\" ) { flow level timestamp } }"
};
Debug.WriteLine("{ water_data_query( start_time: \""
+ startTm + "\" end_time: \""
+ endTm + "\" ) { flow level timestamp } }");
var graphQLClient = new GraphQLClient("http://api.otpt18-c.course.tamk.cloud/");
var graphQLResponse = await graphQLClient.PostAsync(WaterFlowDataRequest);
var dynamicData = graphQLResponse.Data["water_data_query"];
Device.BeginInvokeOnMainThread(() => { LoadingLabel.Text = "Updating graphs..."; });
// Get timeDifference
DateTime localTime = TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, App.FinlandTimeZone);
TimeSpan timeDifference = localTime - DateTime.UtcNow;
// Add fetched data into datalists
foreach (JObject data in dynamicData)
{
DateTime time = new DateTime(1970, 1, 1).AddMilliseconds(double.Parse(data["timestamp"].ToString())).Add(timeDifference);
dataListFlow.Add(new WaterFlowData(
// Date
time,
// Flow in cubic meter per second
float.Parse(data["flow"].ToString())
));
dataListLevel.Add(new WaterLevelData(
// Date
time,
// Level in meters
float.Parse(data["level"].ToString()) / 100 // value is in centimeters so dividing by 100
));
}
Debug.WriteLine("GOT WATER DATA, FLOW OBJECTS: " + dataListFlow.Count + " - LEVEL OBJECTS: " + dataListLevel.Count);
DateTime newestLevelDate = SingletonWaterLevelDataList.Instance.OrderByDescending(x => x.Timestamp).First().Timestamp;
Debug.WriteLine("-------------------------------------- NEWEST DATE ON LIST: " + newestLevelDate.ToString());
}).ContinueWith((task) =>
{
// Update plots
Device.BeginInvokeOnMainThread(() =>
{
// Update date limits
UpdateDatePickers();
SingletonWaterLevelModel.Instance.SetSeries(SingletonWaterLevelDataList.Instance);
SingletonWaterFlowModel.Instance.SetSeries(SingletonWaterFlowDataList.Instance);
CreatePlot();
// Disable loading screen
LoadingViewDisable();
Debug.WriteLine("----- WATER DATA GOT AND UI UPDATED");
});
});
}
catch (Exception e)
{
Debug.WriteLine("Error: " + e.ToString());
}
}
public async Task GetAllWaterDataOnAppStart()
{
try
{
Debug.WriteLine("GET DATA ON APP START");
Device.BeginInvokeOnMainThread(() => { LoadingLabel.Text = "Getting water data..."; });
// Clear old datalists
SingletonWaterFlowDataList dataListFlow = SingletonWaterFlowDataList.Instance;
SingletonWaterLevelDataList dataListLevel = SingletonWaterLevelDataList.Instance;
dataListFlow.Clear();
dataListLevel.Clear();
// Get Data and parse it
await Task.Run(async() =>
{
var WaterFlowDataRequest = new GraphQLRequest
{
Query = "{ water_data_query( start_time: \"\" end_time: \"\" ) { flow level timestamp } }"
};
var graphQLClient = new GraphQLClient("http://api.otpt18-c.course.tamk.cloud/");
var graphQLResponse = await graphQLClient.PostAsync(WaterFlowDataRequest);
var dynamicData = graphQLResponse.Data["water_data_query"];
Device.BeginInvokeOnMainThread(() => { LoadingLabel.Text = "Updating graphs..."; });
// Get timeDifference
DateTime localTime = TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, App.FinlandTimeZone);
TimeSpan timeDifference = localTime - DateTime.UtcNow;
// Add fetched data into datalists
foreach (JObject data in dynamicData)
{
DateTime time = new DateTime(1970, 1, 1).AddMilliseconds(double.Parse(data["timestamp"].ToString())).Add(timeDifference);
dataListFlow.Add(new WaterFlowData(
// Date
time,
// Flow in cubic meter per second
float.Parse(data["flow"].ToString())
));
dataListLevel.Add(new WaterLevelData(
// Date
time,
// Level in meters
float.Parse(data["level"].ToString()) / 100 // value is in centimeters so dividing by 100
));
}
Debug.WriteLine("GOT WATER DATA, FLOW OBJECTS: " + dataListFlow.Count + " - LEVEL OBJECTS: " + dataListLevel.Count);
Debug.WriteLine("GETTING ALERT LEVEL");
var AlertLevelRequest = new GraphQLRequest
{
Query = "{ water_level_alarm{ alarm_level } }"
};
graphQLResponse = await graphQLClient.PostAsync(AlertLevelRequest);
var alertData = graphQLResponse.Data["water_level_alarm"];
JObject alertLvl = alertData;
Debug.WriteLine("-------- ALERT LEVEL IS: " + alertLvl["alarm_level"].ToString());
// The alarm level is in centimeters in database so dividing by 100 to get value in meters
SingletonWaterLevelModel.Instance.AlertLineValue = double.Parse(alertLvl["alarm_level"].ToString()) / 100;
}).ContinueWith((task) =>
{
// Update plots
Device.BeginInvokeOnMainThread(() =>
{
// Update date limits
UpdateDatePickersOnAppStart();
SingletonWaterLevelModel.Instance.SetSeries(SingletonWaterLevelDataList.Instance);
SingletonWaterFlowModel.Instance.SetSeries(SingletonWaterFlowDataList.Instance);
CreatePlot();
// Add plot to the page
AddPlotToPage();
// Create onclick events for buttons and datepickers
WaterFlowButton.Clicked += WaterFlowButtonPressed;
WaterLevelButton.Clicked += WaterLevelButtonPressed;
StartDatePicker.DateSelected += StartDatePicker_DateSelected;
EndDatePicker.DateSelected += EndDatePicker_DateSelected;
// Disable loading screen
LoadingViewDisable();
// Check alert
CheckIfAlertIsOn();
Debug.WriteLine("---------- WATER DATA GOT AND UI UPDATED");
});
});
}
catch (Exception e)
{
Debug.WriteLine("Error: " + e.ToString());
}
}
