/// <summary>
/// The function sort a wanted range by Users nickname and timestemp
/// </summary>
/// <param name="i">start index of the range</param>
/// <param name="range">length of the range (include index i)</param>
/// <param name="msgs">list to sort</param>
public void sortRange(int i, int range, List <GuiMessage> msgs)
{
// sort the list by users nickname
msgs.Sort(i, range, comperator);
// sort the list by Time
int count = 1;
int size = i + range;
if (msgs.Count > 0)
{
// find the range of the current User in the list, so we can sort that range by time
string tempGroup = msgs[i].UserName;
SortByTime sbn = new SortByTime();
while (i + count <= size && i + count < msgs.Count)
{
if (tempGroup.Equals(msgs[i + count].UserName))
{
count++;
}
else
{
// send to SortByName to sort the wanted range
if (i + count < msgs.Count && count > 1)
{
sbn.sortRange(i, count, msgs);
}
tempGroup = msgs[i + count].UserName;
i = i + count;
count = 1;
}
}
// sbn.sortRange(i, count, msgs);
}
}
/// <summary>
/// the function retrieve messages from the data base
/// </summary>
public void retrieveMessages()
{
// check for the last message retrieved from the data base
SortByTime s = new SortByTime();
s.action(presMsgs);
DateTime time;
if (presMsgs.Count > 0)
{
time = presMsgs[presMsgs.Count - 1].DateTime.ToUniversalTime();
// retrives last messages from the server
List <Message> msgToUpdate = allMessages.retrieve(time);
// check which messages we should update in our files
for (int i = 0; i < msgToUpdate.Count; i++)
{
if (msgToUpdate[i].User == null)
{
throw new Exception("an error with getUserByID");
}
// creates a GuiMessage for the curr message
presMsgs.Add(new GuiMessage(msgToUpdate[i].Body, msgToUpdate[i].DateTime.ToLocalTime(), msgToUpdate[i].Id, msgToUpdate[i].User.Nickname, msgToUpdate[i].User.G_id));
}
// update messages list
if (msgToUpdate.Count > 0)
{
allMessages.List.AddRange(msgToUpdate);
if (presMsgs.Count > 200)
{
presMsgs.RemoveRange(0, presMsgs.Count - 200);
allMessages.List.RemoveRange(0, allMessages.List.Count - 200);
}
}
sort.action(presMsgs);
}
else
{
allMessages.filterByNone();
}
}