public async Task <CoordinateItem> QueryCoordinatesAsync(Location at)
{
// this is not optimal, it should be replaced by a custom sqlite function
List <CoordinateItem> coordinateItems = await _database.Table <CoordinateItem>().Where(c => c.IsOn).ToListAsync();
foreach (CoordinateItem item in coordinateItems)
{
if (LocationDetails.IsInLocation(at, item))
{
return(item);
}
}
return(null);
//return await _database.Table<CoordinateItem>().Where(c => c.IsOn &&
//(Location.CalculateDistance(at, c.Latitude, c.Longitude, DistanceUnits.Kilometers) <= c.Radius)).FirstOrDefaultAsync();
}
/*public async void StartLocationHandler()
* {
*
* }*/
public async Task UpdateLocation(double latitude, double longitude)
{
Location newLocation = new Location(latitude, longitude);
Debug.WriteLine($"Updated location: ({latitude}, {longitude})");
if (App.Settings.CoordinateTrackingEnabled)
{
if (trackedCoordinateItem != null)
{
if (!LocationDetails.IsInLocation(newLocation, trackedCoordinateItem))
{
if (trackedCoordinateItem.OnExit)
{
_ = TriggerAlert(trackedCoordinateItem, false);
}
trackedCoordinateItem = null;
}
return;
}
CoordinateItem foundCoordinateItem = await App.Database.QueryCoordinatesAsync(newLocation);
if (foundCoordinateItem != null)
{
trackedCoordinateItem = foundCoordinateItem;
if (trackedCoordinateItem.OnEnter)
{
_ = TriggerAlert(trackedCoordinateItem, true);
}
return;
}
}
/*else
* {
* trackedCoordinateItem = null;
* }*/
if (App.Settings.PlaceTrackingEnabled)
{
if (trackedPlaceTypeItem != null)
{
if (!LocationDetails.IsInLocation(newLocation, startLocation, App.Settings.PlaceTypeLeaveRadius))
{
List <string> foundPlaceTypes = await LocationDetails.GetNearbyPlaceTypes(newLocation);
if (foundPlaceTypes.Exists(x => x.Equals(trackedPlaceTypeItem.Name)))
{
startLocation = newLocation;
}
else
{
if (trackedPlaceTypeItem.OnExit)
{
_ = TriggerAlert(trackedPlaceTypeItem, false);
}
trackedPlaceTypeItem = null;
}
}
return;
}
else
{
List <string> foundPlaceTypes = await LocationDetails.GetNearbyPlaceTypes(newLocation);
if (foundPlaceTypes.Any())
{
PlaceTypeItem foundPlaceTypeItem = await App.Database.QueryPlaceTypes(foundPlaceTypes);
if (foundPlaceTypeItem != null)
{
trackedPlaceTypeItem = foundPlaceTypeItem;
if (trackedPlaceTypeItem.OnEnter)
{
_ = TriggerAlert(trackedPlaceTypeItem, true);
}
startLocation = newLocation;
return;
}
}
}
}
/*else
* {
* trackedPlaceTypeItem = null;
* }*/
}