private async void Socket_OnOpen(AppWebSocket sender, string roomId, bool isClientSocket)
{
var socketsReadyMessage =
new WebSocketMessage()
{
type = "sockets-ready", roomId = roomId, socketId = sender.WebSocketId
};
var serializedMessage = JsonConvert.SerializeObject(socketsReadyMessage);
if (!_activeRooms.ContainsKey(roomId))
{
if (isClientSocket)
{
await sender.Send(new BasicMessage { message = "You have no access to the room", type = "error" }
.ToJsonString());
return;
}
else
{
_activeRooms.TryAdd(roomId, new WebSocketRoom(roomId, sender));
}
}
else if (isClientSocket)
{
await _activeRooms[roomId].AddClientToRoom(sender);
}
else
{
_activeRooms[roomId].AddHostToRoom(sender);
}
await sender.Send(serializedMessage);
}
public override async Task handleNewSocket(AppWebSocket socket)
{
socket.OnMessageReceived += handleNewMessage;
socket.OnOpen += Socket_OnOpen;
socket.OnClose += Socket_OnClose;
await socket.Initialize();
}
public void AddHostToRoom(AppWebSocket webSocket)
{
_hostWebSocket = webSocket;
SendMessageToParticipants(new BasicMessage {
message = "Host connected to the room", type = "warning"
}
.ToJsonString());
}
public async Task HandleSendingMessage(AppWebSocket sender, string message)
{
if (sender == _hostWebSocket)
{
SendMessageToParticipants(message);
}
else
{
await SendMessageToHost(message);
}
}
public async Task AddClientToRoom(AppWebSocket clientWebSocket)
{
_clientWebSockets.Add(clientWebSocket);
var jObject = new JObject
{
["type"] = "new-client",
["roomId"] = _id,
["clientId"] = clientWebSocket.WebSocketId
};
var serializedJson = JsonConvert.SerializeObject(jObject);
await SendMessageToHost(serializedJson);
}
public void RemoveSocketFromRoom(AppWebSocket socket)
{
if (socket == _hostWebSocket)
{
_hostWebSocket = null;
SendMessageToParticipants(new BasicMessage {
message = "Host left the room", type = "warning"
}
.ToJsonString());
}
else
{
_clientWebSockets.Remove(socket);
}
}
public AppWebSocketServer(IApplicationBuilder app, string Location)
{
app.Use(async(context, next) =>
{
if (context.Request.Path == Location)
{
if (context.WebSockets.IsWebSocketRequest)
{
WebSocket webSocket = await context.WebSockets.AcceptWebSocketAsync();
AppWebSocket appWebSocket = new AppWebSocket(webSocket);
await handleNewSocket(appWebSocket);
}
else
{
context.Response.StatusCode = 400;
}
}
else
{
await next();
}
});
}
public abstract void handleNewMessage(AppWebSocket socket, string message);
public abstract void handleSocketClose(AppWebSocket socket);
public abstract Task handleNewSocket(AppWebSocket socket);
public WebSocketRoom(string id, AppWebSocket host)
{
_id = id;
_hostWebSocket = host;
_clientWebSockets = new List <AppWebSocket>();
}
public override async void handleNewMessage(AppWebSocket socket, string message)
{
var parsedMessage = JsonConvert.DeserializeObject <WebSocketMessage>(message);
//WORKAROUND to fix problem with end of message
var messageToSend = JsonConvert.SerializeObject(parsedMessage);
if (_activeRooms.ContainsKey(parsedMessage.roomId))
{
var room = _activeRooms[parsedMessage.roomId];
if (parsedMessage.type == "discussion")
{
await room.HandleSendingMessage(socket, messageToSend);
if (!(parsedMessage.content["estimates"] is JArray estimates) || estimates.Count <= 1)
{
return;
}
var estimatesList = estimates.ToObject <List <WsEstimate> >()
.OrderBy(e => e.estimate)
.ToList();
var minEstimate = estimatesList.First();
var maxEstimate = estimatesList.Last();
var startDiscussionMessage =
new WebSocketMessage()
{
roomId = parsedMessage.roomId,
type = "start-discussion",
socketId = parsedMessage.socketId
};
var serializedDisussionMessage = JsonConvert.SerializeObject(startDiscussionMessage);
var minEstimates = estimatesList.Where(e => e.estimate == minEstimate.estimate).ToList();
minEstimates.ForEach(async e =>
{
try
{
await room.SendMessageToParticipant(e.socketId, serializedDisussionMessage);
}
catch (InvalidOperationException ex)
{
var errorString = "Error sending message to " + e.socketId + "; Socket not found." +
ex.Message;
var errorMessage = new BasicMessage()
{
message = errorString, type = "error"
};
await socket.Send(errorMessage.ToJsonString());
}
});
if (minEstimate.estimate != maxEstimate.estimate)
{
var maxEstimates = estimatesList.Where(e => e.estimate == maxEstimate.estimate).ToList();
maxEstimates.ForEach(async e =>
{
try
{
await room.SendMessageToParticipant(e.socketId, serializedDisussionMessage);
}
catch (InvalidOperationException ex)
{
var errorString = "Error sending message to " + e.socketId + "; Socket not found." +
ex.Message;
var errorMessage = new BasicMessage()
{
message = errorString, type = "error"
};
await socket.Send(errorMessage.ToJsonString());
}
}
);
}
}
else if (parsedMessage.type == "chat")
{
await room.SendMessageToOthers(socket.WebSocketId, messageToSend);
}
else
{
try
{
await _activeRooms[parsedMessage.roomId].HandleSendingMessage(socket, messageToSend);
}
catch (WebSocketException ex)
{
await socket.Send(new BasicMessage { message = ex.Message, type = "error" }.ToJsonString());
}
}
}
else
{
await socket.Send(new BasicMessage { message = "Room not found", type = "error" }.ToJsonString());
}
}
public override void handleSocketClose(AppWebSocket socket)
{
}
private void Socket_OnClose(AppWebSocket sender, string roomId)
{
_activeRooms[roomId].RemoveSocketFromRoom(sender);
}