private ChatData.User GetOrRegisterUser(string name)
{
var user = ChatData.Instance.Users.FirstOrDefault(u => u.Name == name);
if (user != null)
{
return(user);
}
// register
else if (!string.IsNullOrWhiteSpace(name))
{
user = new ChatData.User()
{
Name = name,
};
ChatData.Instance.Users.Add(user);
ChatData.Instance.Save();
return(user);
}
else
{
return(null);
}
}
public void Connect(string name, string contact)
{
var pair = _userConnections.FirstOrDefault(u => u.Value.Name == name);
if (pair.Value != null)
{
if (!_userConnections.TryRemove(pair.Key, out ChatData.User value))
{
return;
}
}
var newUser = new ChatData.User()
{
Name = name,
ConnectionId = Context.ConnectionId,
};
if (!_userConnections.TryAdd(name, newUser))
{
return;
}
ActivateChat(name, contact);
// Update contacts list of other clients
Clients.Others.clearContacts();
// add All contact, which will broadcast all messsages
Clients.All.addContact("All", "DEP");
Clients.Others.addContact(name, "DEP"); // front-end won't add if it is already in list
// and update Caller contact list
foreach (var u in _userConnections.Values)
{
if (u.Name != name)
{
Clients.Caller.addContact(u.Name, "DEP");
}
}
}
