private CleanClientMeta GetCleanClientMeta(string groupId = "")
{
ChatClientMeta meta = _storage.GetUserByConnectionId(Context.ConnectionId);
return(new CleanClientMeta
{
UserName = meta.User.FirstName,
GroupId = !String.IsNullOrEmpty(groupId) ? groupId : meta.GroupId
});
}
public async Task SendMessage(string message)
{
ChatClientMeta meta = _storage.GetUserByConnectionId(Context.ConnectionId);
if (meta.GroupId == null)
{
throw new HubException("Please, join group if you want to send message");
}
await Clients.Group(meta.GroupId).SendAsync(ChatEvents.SendMessage,
new SimpleMessage {
User = meta.User.FirstName, Message = message
});
}
public async Task LeaveGroup(string groupId)
{
ChatClientMeta meta = _storage.GetUserByConnectionId(Context.ConnectionId);
var group = _storage.GetGroupById(groupId);
if (group == null)
{
throw new Exception("Group with the same id doesnt exists");
}
_storage.UpdateConnection(Context.ConnectionId, meta.User, null);
await Groups.RemoveFromGroupAsync(Context.ConnectionId, group.Id);
await Clients.Caller.SendAsync(ChatEvents.GroupLeft, group);
NofifyAboutLeaving(group.Id, meta.User.FirstName);
}
public void AddConnection(T key, ChatUser user)
{
if (user == null)
{
return;
}
lock (_connections)
{
if (!_connections.TryGetValue(key, out ChatClientMeta meta))
{
meta = new ChatClientMeta {
User = user
};
_connections.Add(key, meta);
}
}
}
public async Task EnterGroup(string groupId)
{
ChatClientMeta meta = _storage.GetUserByConnectionId(Context.ConnectionId);
var group = _storage.GetGroupById(groupId);
if (group == null)
{
throw new Exception("Group with the same id doesnt exists");
}
_storage.UpdateConnection(Context.ConnectionId, meta.User, group.Id);
await Groups.AddToGroupAsync(Context.ConnectionId, group.Id);
await Clients.Caller.SendAsync(ChatEvents.GetGroupById, group);
await Clients.Caller.SendAsync(ChatEvents.Notify, $"You joined to '{group.Name}' group!");
await Clients.OthersInGroup(group.Id)
.SendAsync(ChatEvents.Notify, $"{meta.User.FirstName} joined to group!");
}
public void UpdateConnection(T key, ChatUser user, string groupId)
{
if (user == null)
{
return;
}
lock (_connections)
{
if (!_connections.TryGetValue(key, out ChatClientMeta meta))
{
return;
}
_connections[key] = new ChatClientMeta
{
User = user,
GroupId = groupId
};
}
}
