OpenMetaverse.FriendsManager.MainAvatar_InstantMessage C# (CSharp) Method

        private void MainAvatar_InstantMessage(InstantMessage im, Simulator simulator)
        {
            if (im.Dialog == InstantMessageDialog.FriendshipOffered)
            {
                if (OnFriendshipOffered != null)
                {
                    lock (FriendRequests)
                    {
                        if (FriendRequests.ContainsKey(im.FromAgentID))
                            FriendRequests[im.FromAgentID] = im.IMSessionID;
                        else
                            FriendRequests.Add(im.FromAgentID, im.IMSessionID);
                    }
                    try { OnFriendshipOffered(im.FromAgentID, im.FromAgentName, im.IMSessionID); }
                    catch (Exception e) { Logger.Log(e.Message, Helpers.LogLevel.Error, Client, e); }
                }
            }
            else if (im.Dialog == InstantMessageDialog.FriendshipAccepted)
            {
                FriendInfo friend = new FriendInfo(im.FromAgentID, FriendRights.CanSeeOnline,
                    FriendRights.CanSeeOnline);
                friend.Name = im.FromAgentName;
                lock (FriendList) FriendList[friend.UUID] = friend;

                if (OnFriendshipResponse != null)
                {
                    try { OnFriendshipResponse(im.FromAgentID, im.FromAgentName, true); }
                    catch (Exception e) { Logger.Log(e.Message, Helpers.LogLevel.Error, Client, e); }
                }
            }
            else if (im.Dialog == InstantMessageDialog.FriendshipDeclined)
            {
                if (OnFriendshipResponse != null)
                {
                    try { OnFriendshipResponse(im.FromAgentID, im.FromAgentName, false); }
                    catch (Exception e) { Logger.Log(e.Message, Helpers.LogLevel.Error, Client, e); }
                }
            }
        }