public async Task EnableServiceAsync(IService service)
{
if (service is null)
{
throw new ArgumentNullException(nameof(service));
}
PlaySpaceElement space = SelectedElement;
string serviceName = service.GetType().GetSimpleTypeName();
if (service is IPairedService pairedService)
{
var msg = new PairServiceMessage(pairedService);
Messenger.Default.Send(msg);
if (msg.Result == null)
{
throw new OperationCanceledException();
}
var servicePairings = space.Pairings?.ToDictionary(kvp => kvp.Key, kvp => (IReadOnlyList <PairedDevice>) new List <PairedDevice> (kvp.Value))
?? new Dictionary <string, IReadOnlyList <PairedDevice> >();
if (!servicePairings.TryGetValue(serviceName, out var pairings))
{
servicePairings[serviceName] = pairings = new List <PairedDevice> ();
}
var pairing = await msg.Result;
((List <PairedDevice>)pairings).Add(new PairedDevice {
Id = pairing.Item1.Id,
Pair = pairing.Item2
});
space = space with {
Pairings = servicePairings
};
}
// Paired services may ask user to enable if their only paired devices aren't present, but we don't need to re-add the service
if (!space.Services.Contains(serviceName))
{
var services = new List <string> (space.Services.Count + 1);
services.AddRange(space.Services);
services.Add(serviceName);
space = space with {
Services = services
};
}
await SyncService.SaveElementAsync(space);
await Loading;
}
private async void OnPairService(PairServiceMessage msg)
{
var vm = new PairServiceViewModel(msg.PairedService);
msg.Result = vm.PairResult;
await this.rootFrame.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Low, async() => {
var dialog = new PairDialog {
DataContext = vm
};
await dialog.ShowAsync();
});
}