/// <summary>
/// Runs the tile updating service.
/// </summary>
public static async Task UpdateTilesAsync()
{
try
{
// First update the favorites:
var favorites = await Model.Favorites.GetAsync();
// Get the tracking data for favorites & filter it out by the routes:
List<TrackingData> favoritesRealTimeData = new List<TrackingData>();
foreach (StopAndRoutePair favorite in favorites)
{
// Get tracking data for this stop:
var obaDataAccess = ObaDataAccess.Create();
TrackingData[] trackingData = await obaDataAccess.GetTrackingDataForStopAsync(favorite.Stop);
// Adds the tracking data to the list:
favoritesRealTimeData.AddRange(from data in trackingData
where string.Equals(favorite.Route, data.RouteId, StringComparison.OrdinalIgnoreCase)
select data);
}
// Now it's time to update the main tile with data:
TileXMLBuilder mainTileBuilder = new TileXMLBuilder();
AppendTrackingDataToTile(mainTileBuilder, favoritesRealTimeData);
// And now we can update the secondary tiles!
var pinnedStopTiles = await SecondaryTile.FindAllAsync();
foreach (var pinnedStopTile in pinnedStopTiles)
{
PageInitializationParameters parameters = null;
// Be safe and try this first...should never happen.
if (PageInitializationParameters.TryCreate(pinnedStopTile.Arguments, out parameters))
{
double lat = parameters.GetParameter<double>("lat");
double lon = parameters.GetParameter<double>("lon");
string stopId = parameters.GetParameter<string>("stopId");
if (!string.IsNullOrEmpty(stopId) && lat != 0 && lon != 0)
{
// Get the tracking data:
var obaDataAccess = ObaDataAccess.Create(lat, lon);
TrackingData[] trackingData = await obaDataAccess.GetTrackingDataForStopAsync(stopId);
TileXMLBuilder secondaryTileBuilder = new TileXMLBuilder(pinnedStopTile.TileId);
await secondaryTileBuilder.AppendTileWithLargePictureAndTextAsync(
pinnedStopTile.TileId,
lat,
lon,
pinnedStopTile.DisplayName);
AppendTrackingDataToTile(secondaryTileBuilder, trackingData);
}
}
}
}
catch
{
// Sometimes OBA will fail. What can you do?
}
}
/// <summary>
/// Updates a secondary tile.
/// </summary>
public async Task UpdateTileAsync(bool added)
{
if (added)
{
var busStop = this.viewModel.MapControlViewModel.SelectedBusStop;
TileXMLBuilder builder = new TileXMLBuilder(this.TileId);
await builder.AppendTileWithLargePictureAndTextAsync(this.TileId,
busStop.Latitude,
busStop.Longitude,
this.TileName);
}
}
