public async void Run(IBackgroundTaskInstance taskInstance)
{
var deferral = taskInstance.GetDeferral();
try {
var geolocator = new Geolocator() { DesiredAccuracy = PositionAccuracy.High };
// get location
var location = await geolocator.GetGeopositionAsync();
if (location == null)
return;
Task locationTask = null;
var locationName = string.Format("{0:0.000000}, {1:0.000000}", location.Coordinate.Latitude, location.Coordinate.Longitude);
if (location.CivicAddress == null || string.IsNullOrEmpty(location.CivicAddress.City) ||
string.IsNullOrEmpty(location.CivicAddress.Country)) {
var glocator = new GoogleAddressResolver();
locationTask = glocator.ResolveAddressAsync(location.Coordinate).ContinueWith(t => {
var addr = t.Result;
if (addr != null && !addr.IsUnknown && !string.IsNullOrEmpty(addr.City) && !string.IsNullOrEmpty(addr.CountryRegion)) {
locationName = string.Format("{0}, {1}", addr.City, addr.CountryRegion);
}
});
}
else {
locationTask = Task.Delay(0);
}
RainData rain = null;
var rainTask = Task.Run(async () => {
var uri = string.Format(CultureInfo.InvariantCulture,
"http://gps.buienradar.nl/getrr.php?lat={0:0.000000}&lon={1:0.000000}&stamp={2}",
location.Coordinate.Latitude, location.Coordinate.Longitude,
DateTime.UtcNow.Ticks);
var wc = new HttpClient();
var result = await wc.GetAsync(uri);
if (result != null && result.IsSuccessStatusCode) {
rain = await RainData.TryParseAsync(await result.Content.ReadAsStringAsync());
}
});
Task.WaitAll(locationTask, rainTask);
if (rain != null) {
DrashTile.Update(rain.ChanceForEntries(6), locationName);
}
}
catch (Exception) {
// nom nom nom
}
finally {
deferral.Complete();
}
}
private bool UpdateLocation(Geoposition newLocation)
{
if (newLocation == null || newLocation.Coordinate == null) {
Model.LocationName = "";
Model.GoodLocationName = false;
Model.Location = null;
UpdateState();
return false;
}
var delay = firstFetch || Model.Location == null ||
Model.Location.GetDistanceTo(newLocation.Coordinate) > 500
? 0
: 2000;
delayedLocationUpdate.Run(async () => {
await Task.Delay(2000);
Model.Location = newLocation.Coordinate;
if (newLocation.CivicAddress == null || string.IsNullOrEmpty(newLocation.CivicAddress.City) || string.IsNullOrEmpty(newLocation.CivicAddress.Country)) {
var glocator = new GoogleAddressResolver();
var addr = await glocator.ResolveAddressAsync(newLocation.Coordinate);
Model.GoodLocationName = addr == null || addr.IsUnknown || string.IsNullOrEmpty(addr.City) || string.IsNullOrEmpty(addr.CountryRegion);
Model.LocationName = Model.GoodLocationName
? string.Format("{0:0.000000}, {1:0.000000}", newLocation.Coordinate.Latitude, newLocation.Coordinate.Longitude)
: string.Format("{0}, {1}", addr.City, addr.CountryRegion);
}
else {
Model.GoodLocationName = newLocation.CivicAddress == null || string.IsNullOrEmpty(newLocation.CivicAddress.City) || string.IsNullOrEmpty(newLocation.CivicAddress.Country);
Model.LocationName = Model.GoodLocationName
? string.Format("{0:0.000000}, {1:0.000000}", newLocation.Coordinate.Latitude, newLocation.Coordinate.Longitude)
: string.Format("{0}, {1}", newLocation.CivicAddress.City, newLocation.CivicAddress.Country);
}
UpdateState();
FetchRain();
}, delay);
return true;
}
