private RoomState GetRoomState(string roomName)
{
var room = roomRepository.GetByName(roomName);
if (room == null)
{
return(null);
}
var stateFromDb = new RoomState(roomName);
stateFromDb.AddId(room.Id);
var visitors = visitRepository.Get(room.Id);
if (visitors == null || !visitors.Any())
{
return(stateFromDb);
}
visitors.ForEach(visitor =>
{
var userSubscriber = userRepository.GetById(visitor.UserId.Value);
stateFromDb.AddSubscriber(new RoomSubscription {
Subscriber = userSubscriber.Name, LastVisit = visitor.LastVisitTimeStamp.Value
});
});
return(stateFromDb);
}
private UserState GetUserState(string userName)
{
var user = userRepository.GetByName(userName);
if (user == null)
{
return(null);
}
var stateFromDb = new UserState(userName);
stateFromDb.SetId(user.Id);
if (user.LastRoomId.HasValue)
{
var room = roomRepository.GetById(user.LastRoomId.Value);
stateFromDb.SetLastRoom(room);
}
return(stateFromDb);
}
private KeyValuePair <User, Room> Subscribe(string roomName, string userName)
{
var commandHandled = Context
.System
.ActorSelection(pathResolver.GetRoomDispatcherPath())
.Ask <CommandHandled>(new Messages.Subscribe(roomName, userName))
.Result;
Context.System.EventStream.Publish(new ChangeCurrentRoom(roomName));
var user = userRepository.GetByName(userName);
var room = roomRepository.GetByName(roomName);
userState.SetLastRoom(room);
user.LastRoomId = room.Id;
userRepository.Update(user);
return(new KeyValuePair <User, Room>(user, room));
}
private void HandleSubscribe(Messages.Subscribe evt)
{
var user = userRepository.GetByName(evt.UserName);
if (roomState.Subscribers.Any(s => s.Subscriber == evt.UserName))
{
var estimatedSubscriber = roomState.Subscribers.First(v => v.Subscriber == evt.UserName);
var messages = messageRepository.GetMessages(roomState.Id, estimatedSubscriber.LastVisit);
if (messages == null || !messages.Any())
{
HandleUpdateSubscription(user.Id, roomState.Id, DateTime.Now, estimatedSubscriber);
Sender.Tell(new CommandHandled(true), Self);
return;
}
var maxTimeStamp = messages.Max(m => m.TimeStamp);
HandleUpdateSubscription(user.Id, roomState.Id, maxTimeStamp, estimatedSubscriber);
Sender.Tell(new CommandHandled(true), Self);
messages.ForEach(msg =>
{
Context.System.EventStream.Publish(new DisplayMessages(new TextMessage[]
{
new TextMessage
{
RoomId = msg.RoomId,
RoomName = roomState.RoomName,
UserId = msg.UserId,
UserName = msg.UserName,
Text = msg.Text,
TimeStamp = msg.TimeStamp
}
}));
});
return;
}
var unreadedMessages = messageRepository.GetMessages(roomState.Id, DateTime.Now.AddDays(-2d));
if (unreadedMessages != null && unreadedMessages.Any())
{
HandleCreateSubscription(user.Id, evt.UserName, roomState.Id, unreadedMessages.Max(m => m.TimeStamp));
Sender.Tell(new CommandHandled(true), Self);
unreadedMessages.ForEach(msg =>
{
Context.System.EventStream.Publish(new DisplayMessages(new TextMessage[]
{
new TextMessage
{
RoomId = msg.RoomId,
RoomName = roomState.RoomName,
UserId = msg.UserId,
UserName = msg.UserName,
Text = msg.Text,
TimeStamp = msg.TimeStamp
}
}));
});
return;
}
else
{
HandleCreateSubscription(user.Id, evt.UserName, roomState.Id, DateTime.Now);
}
Sender.Tell(new CommandHandled(true), Self);
return;
}
