private void ChatScrollViewer_ScrollChanged(object sender, ScrollChangedEventArgs e)
{
if (this.ChatGrid.RowDefinitions[0].Height != new GridLength(0))
{
if (this.ChatScrollViewer.VerticalOffset == 0 /*&& this.ChatScrollViewer.ScrollableHeight != 0*/)
{
if (ChatScrollViewerVerticalOffsetZeroPointerFixer)
{
DayMessageJournalSerializable s = XmlFunctions.GetDayJournal(CurrentChatID, LoadPrevLastChatFile());
if (s != null)
{
int index = 0;
foreach (var item in s.Messages)
{
var tmp_msg = new MessageUiForm(item.MessageText, item.SendDateTime, item.SenderName, item.DoesRead, item.DoesRead, item.MessageContentUrl)
{
DoesRead = item.DoesRead,
MessageContentUrl = item.MessageContentUrl,
MyTurn = item.MyTurn,
SenderName = item.SenderName,
SendDateTime = item.SendDateTime
};
bool test_first_msg = false;
foreach (var i in this.MessageListBox.Items)
{
if ((i as MessageUiForm).SendDateTime == tmp_msg.SendDateTime)
{
test_first_msg = true;
}
}
if (!test_first_msg)
{
MessageListBox.Items.Insert(index, tmp_msg);
// MessageBox.Show($"{tmp_msg.MessageText}");
}
index++;
}
this.ChatScrollViewer.LineDown();
this.ChatScrollViewer.LineDown();
this.ChatScrollViewer.LineDown();
this.ChatScrollViewer.LineDown();
this.ChatScrollViewer.LineDown();
//MessageBox.Show(this.ChatScrollViewer.VerticalOffset.ToString());
GC.Collect();
ChatScrollViewerVerticalOffsetZeroPointerFixer = false;
}
//MessageBox.Show(CurrentLoadedDate.ToString());
}
else
{
ChatScrollViewerVerticalOffsetZeroPointerFixer = true;
}
}
}
}
public static DayMessageJournalSerializable GetDayJournal(long chatID, string dateToFind)
{
//if (dateToFind == null)
// return null;
DayMessageJournalSerializable userPreviewSerializableList = null;
if (File.Exists(CreatePathToJournal(chatID, dateToFind)))
{
XmlSerializer formatter = new XmlSerializer(typeof(DayMessageJournalSerializable));
using (FileStream fs = new FileStream(CreatePathToJournal(chatID, dateToFind), FileMode.OpenOrCreate)) {
userPreviewSerializableList = (DayMessageJournalSerializable)formatter.Deserialize(fs);
userPreviewSerializableList.Messages.Sort((x, y) => DateTime.Parse((x.SendDateTime)).CompareTo(DateTime.Parse((y.SendDateTime))));
}
}
return(userPreviewSerializableList);
}
public static void UpdateDayJournal(IMessage message, long ID)
{
DayMessageJournalSerializable dayMessageJournalSerializable;
if (File.Exists(CreatePathToJournal(ID, DateTime.Now.ToShortDateString())))
{
dayMessageJournalSerializable = GetDayJournal(ID, DateTime.Now.ToShortDateString());
File.Delete(CreatePathToJournal(ID, DateTime.Now.ToShortDateString()));
}
else
{
dayMessageJournalSerializable = new DayMessageJournalSerializable();
}
dayMessageJournalSerializable.Messages.Add(new Message(message));
XmlSerializer formatter = new XmlSerializer(typeof(DayMessageJournalSerializable));
using (FileStream fs = new FileStream(CreatePathToJournal(ID, dayMessageJournalSerializable.CurrentDate), FileMode.OpenOrCreate)) {
formatter.Serialize(fs, dayMessageJournalSerializable);
}
GC.Collect();
}
public static void WriteDayJournal(Message message, long ID, string OldMsgSendTime)
{
try {
string local_tmp_path = Properties.Resources.UserDataDirPath + "\\" + ID + "\\" + DateTime.Parse(message.SendDateTime).ToShortDateString() + Properties.Resources.SaveFormatter;
XmlSerializer xmlSerializer = new XmlSerializer(typeof(DayMessageJournalSerializable));
//MessageBox.Show($"OLD SEND DATE TIME {OldMsgSendTime}\n NEW DATE TIME {message.SendDateTime}");
string path_to_existing_file_remove = Properties.Resources.UserDataDirPath + "\\" + ID + "\\" + DateTime.Parse(OldMsgSendTime).ToShortDateString() + Properties.Resources.SaveFormatter;
if (File.Exists(local_tmp_path))
{
#region Creating and editing new journal
DayMessageJournalSerializable new_chat_journal = XmlFunctions.GetDayJournal(ID, DateTime.Parse(message.SendDateTime).ToShortDateString());
File.Delete(local_tmp_path);
new_chat_journal.Messages.Add(message);
new_chat_journal.Messages.Sort((x, y) => DateTime.Parse((x.SendDateTime)).CompareTo(DateTime.Parse((y.SendDateTime))));
//new_chat_journal.Messages.Reverse();
using (FileStream fs = new FileStream(CreatePathToJournal(ID, new_chat_journal.CurrentDate), FileMode.OpenOrCreate)) {
xmlSerializer.Serialize(fs, new_chat_journal);
}
//MessageBox.Show(message.MyTurn.ToString());
#endregion Creating and editing new journal
}
else
{
DayMessageJournalSerializable new_chat_journal = new DayMessageJournalSerializable();
new_chat_journal.Messages.Add(new Message(message));
new_chat_journal.CurrentDate = DateTime.Parse(message.SendDateTime).ToShortDateString();
XmlSerializer formatter = new XmlSerializer(typeof(DayMessageJournalSerializable));
using (FileStream fs = new FileStream(CreatePathToJournal(ID, DateTime.Parse(message.SendDateTime).ToShortDateString()), FileMode.OpenOrCreate)) {
formatter.Serialize(fs, new_chat_journal);
}
}
#region Editing old journal
if (File.Exists(path_to_existing_file_remove))
{
var oldChat = GetDayJournal(ID, DateTime.Parse(OldMsgSendTime).ToShortDateString());
oldChat.Messages.Remove(oldChat.Messages.Find(x => x.SendDateTime == OldMsgSendTime));
if (File.Exists(path_to_existing_file_remove))
{
File.Delete(path_to_existing_file_remove);
}
if (oldChat.Messages.Count != 0)
{
using (FileStream fs = new FileStream(CreatePathToJournal(ID, oldChat.CurrentDate), FileMode.OpenOrCreate)) {
xmlSerializer.Serialize(fs, oldChat);
}
}
}
#endregion Editing old journal
}
catch (Exception ex) {
MessageBox.Show(ex.Message);
}
GC.Collect();
}
