static async Task Main(string[] args)
{
//Get configuration
var networkAddress = NetworkAddress.Parse(ConfigurationManager.AppSettings["Network"]);
var broadcastPort = int.Parse(ConfigurationManager.AppSettings["BroadcastUdpPort"]);
var unicastPort = int.Parse(ConfigurationManager.AppSettings["UnicastTcpPort"]);
localAddress = networkAddress.GetLocalAddress();
//This client exposes all of the high-level functionality
var collaborationClient = new CollaborationClient(networkAddress, broadcastPort, unicastPort);
collaborationClient.CollaborationRequestAccepted += OnCollaborationRequestAccepted;
collaborationClient.CollaborationRequestDeclined += OnCollaborationRequestDeclined;
collaborationClient.StopCollaborationRequested += OnStopCollaborationRequested;
collaborationClient.SubscriptionRequested += OnSubscriptionRequested;
collaborationClient.SubscriberNotifiedToStopCollaborating += OnSubscriberNotifiedToStopCollaborating;
//Start listening per collaboration requests broadcasts
var broadcastListenTask = StartListeningForCollaborationRequests(collaborationClient, listeningCancellationTokenSource.Token);
//And also listen for subscription requests
var subscriptionListenTask = StartListeningForSubscriptions(collaborationClient, listeningCancellationTokenSource.Token);
//Then, read commands from the user
HandleUserInput(collaborationClient);
//When it's time to close the app, cancel any pending work and shutdown the hosts
workCancellationTokenSource?.Cancel();
await Task.WhenAll(broadcastListenTask, subscriptionListenTask);
}
private static async Task StartListeningForCollaborationRequests(CollaborationClient client, CancellationToken token)
{
Uri uri = client.ListenForCollaborationRequests();
Console.WriteLine($"Started listening on incoming collaboration requests on address {uri}");
try
{
await Task.Delay(-1, token);
}
catch (OperationCanceledException)
{
}
finally
{
client.StopListeningForCollaborationRequests();
}
}
private static void HandleUserInput(CollaborationClient client)
{
ConsoleKeyInfo input;
WriteInstructions();
while ((input = Console.ReadKey()).Key != ConsoleKey.Enter)
{
Console.WriteLine();
switch (input.Key)
{
case ConsoleKey.R:
//Let's generate some random filename
//TODO: this needs to be modified with appropriate logic
var filename = Guid.NewGuid().ToString().Split('-').Last() + ".ext";
try
{
var collaboration = client.BroadcastCollaborationRequestForFile(filename);
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine($"Collaboration request broadcast successfully for file {collaboration.Filename}, starting work now...");
Console.ResetColor();
workCancellationTokenSource = new CancellationTokenSource();
PerformWorkOnFile(collaboration.Filename, workCancellationTokenSource.Token);
} catch (Exception exc)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(exc.Message);
Console.ResetColor();
}
break;
case ConsoleKey.S:
workCancellationTokenSource?.Cancel();
client.StopCollaboration();
Console.WriteLine("Work stopped");
WriteInstructions();
break;
}
}
listeningCancellationTokenSource.Cancel();
}
public CollaborationRequestService(CollaborationClient client)
{
this.client = client;
}
public SubscriptionService(CollaborationClient client)
{
this.client = client;
}
