public List <Profile> GetOnlineMembers(int groupId)
{
return(groupController.GetOnlineMembers(groupId));
}
public List <Profile> JoinChatWithGroup(int groupId, int chatId)
{
List <Profile> profiles = groupController.GetOnlineMembers(groupId); //gets all online members of the group
Chat chat = FindChat(chatId); //finds active chat
try
{
if (chat != null) //chat is active right now
{
lock (chat) //locks the chat object so only one process can access it
{
List <Tuple <Profile, object, string> > membersToJoin = new List <Tuple <Profile, object, string> >(); //list where members who have to join will be stored
foreach (Profile member in profiles)
{
Tuple <Profile, object, string> user = FindChat(chatId).Users.Find(
delegate(Tuple <Profile, object, string> tuple)
{
return(tuple.Item1.ProfileID == member.ProfileID);
}
);
if (user == null) //if user isnt in chat already
{
membersToJoin.Add(new Tuple <Profile, object, string>(member, null, "")); //adds the member to list (who will join chat)
}
}
if ((chat.MaxNrOfUsers - chat.Users.Count) >= membersToJoin.Count) //ok nr of people in chat
{
chat.Users.AddRange(membersToJoin); //adds this list to already existing list
return(profiles); //persons added to chat
}
else
{
return(new List <Profile>());//too few places
}
}
}
else
{
lock (chats)
{
chat = dbChat.GetChat(chatId);//Gets chat from database
if (chat.MaxNrOfUsers >= profiles.Count)
{
List <Tuple <Profile, object, string> > membersToJoin = new List <Tuple <Profile, object, string> >();
foreach (Profile user in profiles)
{
membersToJoin.Add(new Tuple <Profile, object, string>(user, null, "")); //member added to list of members to join
}
chat.Users = membersToJoin; //adds user to chat
chats.Add(chat); //adds chat to chat list
return(profiles); //Returns joined users
}
else
{
return(new List <Profile>());//too few spots in chatbox (no one has joined)
}
}
}
}
catch (Exception)
{
return(new List <Profile>());//something went wrong (no one should be called back)
}
}