public async Task SwitchRoom(string chatApiKey, string battleTag, string chatRoom)
{
var user = await _authenticationService.GetUser(chatApiKey, battleTag);
var oldRoom = _connections.GetRoom(Context.ConnectionId);
_connections.Remove(Context.ConnectionId);
_connections.Add(Context.ConnectionId, chatRoom, user);
await Groups.RemoveFromGroupAsync(Context.ConnectionId, oldRoom);
await Groups.AddToGroupAsync(Context.ConnectionId, chatRoom);
var usersOfRoom = _connections.GetUsersOfRoom(chatRoom);
await Clients.Group(oldRoom).SendAsync("UserLeft", user);
await Clients.Group(chatRoom).SendAsync("UserEntered", user);
await Clients.Caller.SendAsync("StartChat", usersOfRoom, _chatHistory.GetMessages(chatRoom));
}
