private async Task LoadStartupDataAsync(CancellationToken cancellationToken)
{
logger.Debug("Startup Complete! Loading startup data");
// There's a race where Syncthing died, and so we kill the API clients and set it to null,
// but we still end up here, because threading.
ISyncThingApiClient apiClient;
lock (this.apiClientsLock)
{
cancellationToken.ThrowIfCancellationRequested();
apiClient = this.apiClient;
if (apiClient == null)
{
throw new InvalidOperationException("ApiClient must not be null");
}
}
var configTask = apiClient.FetchConfigAsync();
var systemTask = apiClient.FetchSystemInfoAsync();
var versionTask = apiClient.FetchVersionAsync();
var connectionsTask = apiClient.FetchConnectionsAsync();
cancellationToken.ThrowIfCancellationRequested();
await Task.WhenAll(configTask, systemTask, versionTask, connectionsTask);
// We can potentially see duplicate devices (if the user set their config file that way). Ignore them.
var devices = configTask.Result.Devices.DistinctBy(x => x.DeviceID).Select(device =>
{
var deviceObj = new Device(device.DeviceID, device.Name);
ItemConnectionData connectionData;
if (connectionsTask.Result.DeviceConnections.TryGetValue(device.DeviceID, out connectionData))
{
deviceObj.SetConnected(connectionData.Address);
}
return(deviceObj);
});
this.devices = new ConcurrentDictionary <string, Device>(devices.Select(x => new KeyValuePair <string, Device>(x.DeviceId, x)));
var tilde = systemTask.Result.Tilde;
// If the folder is invalid for any reason, we'll ignore it.
// Again, there's the potential for duplicate folder IDs (if the user's been fiddling their config).
// In this case, there's nothing really sensible we can do. Just pick one of them :)
var folderConstructionTasks = configTask.Result.Folders
.Where(x => String.IsNullOrWhiteSpace(x.Invalid))
.DistinctBy(x => x.ID)
.Select(async folder =>
{
var ignores = await this.FetchFolderIgnoresAsync(folder.ID, cancellationToken);
var path = folder.Path;
if (path.StartsWith("~"))
{
path = Path.Combine(tilde, path.Substring(1).TrimStart(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar));
}
return(new Folder(folder.ID, path, new FolderIgnores(ignores.IgnorePatterns, ignores.RegexPatterns)));
});
cancellationToken.ThrowIfCancellationRequested();
var folders = await Task.WhenAll(folderConstructionTasks);
this.folders = new ConcurrentDictionary <string, Folder>(folders.Select(x => new KeyValuePair <string, Folder>(x.FolderId, x)));
this.Version = versionTask.Result;
cancellationToken.ThrowIfCancellationRequested();
this.StartedTime = DateTime.UtcNow;
this.IsDataLoaded = true;
this.OnDataLoaded();
}
