public static async Task<DownloadManager> Create(RouteListing listing, CancellationToken cancellationToken)
{
listing.Progress = 0;
listing.ShowProgress = true;
DownloadManager result = new DownloadManager();
result.Listing = listing;
result._Route = result.Listing.Route;
var stopsAndShapes = await ApiLayer.GetStopsAndShapesForRoute(result.Listing.Route.ID, cancellationToken);
result._Shapes = stopsAndShapes.Item2;
result._StopsPending = new ObservableCollection<BusStop>(stopsAndShapes.Item1);
if (cancellationToken.IsCancellationRequested)
return null;
result.Initialize();
result._TotalStops = result.StopsPending.Count;
DownloadsInProgress.Add(result);
if (!FileManager.PendingDownloads.Any(item => item.First() == result.Route.ID))
{
List<string> pend = new List<string>() { result.Route.ID };
pend.AddRange(result.StopsPending.Select(stop => stop.ID));
FileManager.PendingDownloads.Add(pend);
await listing.RefreshIsDownloaded();
await FileManager.SavePendingDownloads();
}
return result;
}
public static async Task<DownloadManager> Create(RouteListing listing, CancellationToken cancellationToken)
{
listing.Progress = 0;
listing.ShowProgress = true;
DownloadManager result = new DownloadManager();
result.Listing = listing;
result._Route = result.Listing.Route;
var stopsAndShapes = await ApiLayer.GetStopsForRoute(result.Listing.Route.ID, cancellationToken);
result._Shapes = stopsAndShapes.Item2;
result._StopsPending = new ObservableCollection<BusStop>(stopsAndShapes.Item1);
if (cancellationToken.IsCancellationRequested)
return null;
result.Initialize();
result._TotalStops = result.StopsPending.Count;
DownloadsInProgress.Add(result);
return result;
}
private async void CancelButton_Click(object sender, RoutedEventArgs e)
{
var cancel = true;
MessageDialog dialog = new MessageDialog("This will stop downloading and delete what was downloaded of the selected routes. Are you sure?", "Cancel Downloads?");
dialog.Commands.Add(new UICommand("Yes", new UICommandInvokedHandler((cmd) => cancel = false)));
dialog.Commands.Add(new UICommand("No", new UICommandInvokedHandler((cmd) => cancel = true)));
await dialog.ShowAsync();
if (cancel)
{
return;
}
LoadingRect.Visibility = Visibility.Visible;
MainProgressRing.IsActive = true;
DownloadsCancellationTokenSource.Cancel();
DownloadsCancellationTokenSource = new CancellationTokenSource();
await DownloadsTask;
var items = MainList.Items.Where(item => ((item as RouteListing)?.IsChecked).GetValueOrDefault(false)).Select(item => (RouteListing)item).ToArray();
await DownloadManager.DeleteRoutes(items);
MainProgressRing.IsActive = false;
LoadingRect.Visibility = Visibility.Collapsed;
}
public static async Task <RouteListing[]> DownloadAll(Action <double, string> statusChangedCallback, CancellationToken cancellationToken, params RouteListing[] routeListings)
{
List <RouteListing> errorList = new List <RouteListing>();
List <BusStop> allStops = new List <BusStop>();
await FileManager.LoadPendingDownloads();
try
{
for (int i = 0; i < routeListings.Length; i++)
{
statusChangedCallback(0.15 * i / routeListings.Length, "Getting stops (" + (i + 1).ToString() + " of " + routeListings.Length.ToString() + ")" + " " + (routeListings[i].Name.All(chr => char.IsDigit(chr)) ? "Route " : "") + routeListings[i].Name);
try
{
var manager = await DownloadManager.Create(routeListings[i], cancellationToken);
await FileManager.SaveRoute(manager.Route, manager.StopsPending.Select(item => item.ID).ToArray(), manager.Shapes);
foreach (var stop in manager.StopsPending)
{
if (!allStops.Contains(stop))
{
allStops.Add(stop);
}
}
}
catch (Exception ex)
{
cancellationToken.ThrowIfCancellationRequested();
errorList.Add(routeListings[i]);
ex.ToString();
}
}
WeekSchedule schedule;
string[] routeFilters = DownloadsInProgress.Select(download => download.Listing.Route.ID).ToArray();
for (int i = 0; i < allStops.Count; i++)
{
statusChangedCallback(0.15 + 0.85 * i / allStops.Count, "Downloading schedules (" + (i + 1).ToString() + " of " + allStops.Count.ToString() + ") " + allStops[i].Name);
try
{
var pend = FileManager.PendingDownloads.Where(item => routeFilters.Contains(item.First())).ToArray();
if (pend.Any(item => item.Contains(allStops[i].ID)))
{
schedule = await ApiLayer.GetScheduleForStop(allStops[i].ID, cancellationToken);
schedule.FilterByRoutes(routeFilters);
await FileManager.SaveScheduleAsync(schedule, allStops[i]);
foreach (var item in pend)
{
if (item.Contains(allStops[i].ID))
{
item.Remove(allStops[i].ID);
}
if (item.Count == 1)
{
FileManager.PendingDownloads.Remove(item);
}
}
await FileManager.SavePendingDownloads();
}
foreach (var manager in DownloadsInProgress.ToArray())
{
if (manager.StopsPending.Contains(allStops[i]))
{
manager.StopsPending.Remove(allStops[i]);
}
}
}
catch (Exception ex)
{
cancellationToken.ThrowIfCancellationRequested();
foreach (var download in DownloadsInProgress.Where(item => item.StopsPending.Contains(allStops[i])))
{
if (!errorList.Contains(download.Listing))
{
errorList.Add(download.Listing);
}
}
ex.ToString();
}
}
statusChangedCallback(1, "Download complete.");
}
catch (OperationCanceledException)
{
statusChangedCallback(1, "Download cancelled.");
while (DownloadsInProgress.Count > 0)
{
DownloadsInProgress[0].StopsPending.Clear();
}
}
return(errorList.ToArray());
}
private async void DownloadButton_Click(object sender, RoutedEventArgs e)
{
if (BandwidthManager.EffectiveBandwidthOptions == BandwidthOptions.Low)
{
if (SettingsManager.GetSetting("LimitedData.WarnOnDownload", false, true))
{
MessageDialog dialog = new MessageDialog("You are on a limited data plan and not on wifi. Are you sure you want to download these routes over this data?", "Limited Data");
dialog.Commands.Add(new UICommand("Yes", new UICommandInvokedHandler((cmd) => DownloadLimitedData = true)));
dialog.Commands.Add(new UICommand("No", new UICommandInvokedHandler((cmd) => DownloadLimitedData = false)));
await dialog.ShowAsync();
if (!DownloadLimitedData)
{
return;
}
}
else
{
DownloadLimitedData = true;
}
}
else
{
DownloadLimitedData = false;
}
var cancellationToken = DownloadsCancellationTokenSource.Token;
VisualStateManager.GoToState(this, "DownloadingState", true);
var items = MainList.Items.Where(item => ((item as RouteListing)?.IsChecked).GetValueOrDefault(false)).Select(item => (RouteListing)item).ToArray();
DownloadsTask = DownloadManager.DownloadAll(async(p, m) => await SetProgress(p, m), cancellationToken, items);
var errors = await DownloadsTask;
if (cancellationToken.IsCancellationRequested)
{
await SetProgress(1, "Cancelled");
}
VisualStateManager.GoToState(this, "NotDownloadingState", true);
if (errors != null && errors.Length > 0)
{
VisualStateManager.GoToState(this, "SelectingState", true);
foreach (RouteListing listing in MainList.Items)
{
listing.IsChecked = errors.Contains(listing);
}
MessageDialog dialog = new MessageDialog("There was an error downloading " + errors.Length.ToString() + " of the routes. The affected routes are selected.", "Error downloading some routes");
await dialog.ShowAsync();
}
else
{
bool checkMode = false;
foreach (RouteListing listing in MainList.Items)
{
checkMode = checkMode || (listing.IsChecked = listing.IsDownloaded == DownloadStatus.Downloading);
}
if (checkMode)
{
VisualStateManager.GoToState(this, "SelectingState", true);
}
else
{
VisualStateManager.GoToState(this, "NotSelectingState", true);
}
}
}
