Ungereimtheiten beim Konvertieren der Zeitangaben ausgemerzt.

Manche Datumsangaben waren im lokalen Zeitformat und nicht im Utc-Format.

ChatController/ChatController.csproj

@@ -138,7 +138,6 @@
   </ItemGroup>
   <ItemGroup>
     <Content Include="ownchat_favicon.ico" />
-    <None Include="Resources\IconNewMessages.ico" />
     <None Include="Resources\oC-favico_NewMessage.ico" />
     <Content Include="Resources\ownchat_favicon.ico" />
     <Resource Include="Ressourcen\ownchat_favicon.ico" />

ChatController/ChatMainControl.xaml.cs

@@ -5,7 +5,6 @@ using System.IO;
 using System.Linq;
 using System.Net;
 using System.Text;
-using System.Threading;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Data;
@@ -20,6 +19,7 @@ using ChatController.HauptKlassen;
 using ChatController.LoginKlassen;
 using ChatController.Utilities;
 using ChatController.Utilities.Extensions;
+
 using Button = System.Windows.Controls.Button;
 using Cursors = System.Windows.Input.Cursors;
 using DataFormats = System.Windows.DataFormats;
@@ -51,7 +51,7 @@ namespace ChatController
         
         private bool _ScrollPrueferAktivieren;
 
-        public bool _ShouldInterruptContactsThread = true;
+        public bool ShouldInterruptContactsThread = true;
 
         private readonly List<string> _CreatedTempFiles = new List<string>();
 
@@ -69,7 +69,7 @@ namespace ChatController
         public void InitMitChatdaten(ChatDatenUebergabe cdu)
         {
             _Chat = new Chat(cdu);
-            
+
             _ContactList = _Chat.AddContacts();
 
             Clientlist.ItemsSource = _ContactList;
@@ -85,7 +85,7 @@ namespace ChatController
 
                     var isYounger = contact.TimeStamp > dateTimeFromFile;
 
-                    contact.IsNewMessage = isYounger || isUnread;
+                    contact.IsNewMessage = isUnread;
                     contact.HasUnreadMessages = contact.IsNewMessage;
                 }
             }
@@ -93,14 +93,14 @@ namespace ChatController
             var view = (CollectionView) CollectionViewSource.GetDefaultView(Clientlist.ItemsSource);
             view.Filter = UserFilter;
 
-            _GlobalListeningThreadtimer?.Stop();
+            GlobalListeningThreadtimer?.Stop();
-            _GlobalListeningThreadtimer = null;
+            GlobalListeningThreadtimer = null;
             InitGlobalListeningThread();
 
             Clientlist.Items.Refresh();
         }
 
-        public void ShowNotification(string pTitle, string pMessage, long pGroupId)
+        public void ShowNotification(string pTitle, string pMessage, int pGroupId)
         {
             if (!_Group2NotifyIcons.ContainsKey(pGroupId))
             {
@@ -172,7 +172,12 @@ namespace ChatController
 
         private void SelectContact(Contact pContact)
         {
-            _ShouldInterruptContactsThread = true;
+            if(pContact == null)
+            {
+                return;
+            }
+
+            ShouldInterruptContactsThread = true;
 
             Cursor = Cursors.Wait;
             _ScrollPrueferAktivieren = false;
@@ -218,7 +223,7 @@ namespace ChatController
 
             WriteToNewSyncFile();
 
-            _ShouldInterruptContactsThread = false;
+            ShouldInterruptContactsThread = false;
         }
 
         private void SetContextHandler()
@@ -616,15 +621,15 @@ namespace ChatController
             InitListeningThread((CurrentContact)AktChatUserList.Items[0]);
         }
 
-        private Timer _ListeningThreadTimer;
+        public Timer _ListeningThreadTimer;
-        private Timer _GlobalListeningThreadtimer;
+        public Timer GlobalListeningThreadtimer { get; set; }
 
         private void InitGlobalListeningThread()
         {
-            _GlobalListeningThreadtimer = new Timer();
+            GlobalListeningThreadtimer = new Timer();
-            _GlobalListeningThreadtimer.Tick += GlobalListeningThreadTimerTickEvent;
+            GlobalListeningThreadtimer.Tick += GlobalListeningThreadTimerTickEvent;
-            _GlobalListeningThreadtimer.Interval = 2000;
+            GlobalListeningThreadtimer.Interval = 2000;
-            _GlobalListeningThreadtimer.Start();
+            GlobalListeningThreadtimer.Start();
         }
 
         private void GlobalListeningThreadTimerTickEvent(object sender, EventArgs e)
@@ -713,7 +718,7 @@ namespace ChatController
 
         private void ListenForMessagesForCurrentContact(CurrentContact pCurrentContact)
         {
-            if (!_ShouldInterruptContactsThread)
+            if (!ShouldInterruptContactsThread)
             {
                 var hasNewMessages = _Chat.CheckIfNewMessagesExist(pCurrentContact);
 
@@ -898,7 +903,7 @@ namespace ChatController
 
                     foreach (var contact in _ContactList.ToList().Where(contact => contact.ReceivedMessage != null))
                     {
-                        var text = contact.GroupId + ";" + contact.TimeStamp + ";" + contact.IsNewMessage + ";";
+                        var text = contact.GroupId + ";" + contact.TimeStamp.ToUniversalTime() + ";" + contact.IsNewMessage + ";";
                         var bytes = enc.GetBytes(text);
                         var base64String = Convert.ToBase64String(bytes);
 
@@ -938,8 +943,6 @@ namespace ChatController
                             var dateTime = DateTime.Parse(splitPlainText[1]);
                             var isUnread = splitPlainText.Length <= 2 || string.IsNullOrEmpty(splitPlainText[2]) || bool.Parse(splitPlainText[2]);
 
-                            Debug.WriteLine($"{groupId}: {dateTime:dd.MM.yyyy HH:mm:ss}; Is unread: {isUnread}");
-
                             _GroupId2DateTime.Add(groupId, new SyncFileInfoStruct(isUnread, dateTime));
                         }
                     }
@@ -953,8 +956,8 @@ namespace ChatController
                             latestDateTime = id2dateTime.Value.TimeStamp;
                         }
                     }
-                    
+
-                    //_Chat.LastTimeStamp = !latestDateTime.Equals(Utils.DefaultDate) ? latestDateTime.GetUnixTimeStamp() : DateTime.UtcNow.GetUnixTimeStamp();
+                    _Chat.LastTimeStamp = latestDateTime.GetUnixTimeStamp();
                 }
             }
             catch (Exception e)

ChatController/HauptKlassen/Chat.cs

@@ -3,7 +3,6 @@ using Newtonsoft.Json;
 
 using System;
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.Drawing;
 using System.Drawing.Drawing2D;
 using System.Drawing.Imaging;
@@ -22,6 +21,7 @@ using System.Windows.Media.Imaging;
 using ChatController.LoginKlassen;
 using ChatController.Utilities;
 using ChatController.Utilities.Extensions;
+
 using Application = System.Windows.Forms.Application;
 using Clipboard = System.Windows.Forms.Clipboard;
 using Color = System.Drawing.Color;
@@ -53,21 +53,6 @@ namespace ChatController.HauptKlassen
             ChatDaten = chatDaten;
         }
 
-        public ChatMessage PrevisouslyLatestMessage { get; set; }
-        public ChatMessage GetLatestMessage()
-        {
-            ChatMessage latestMessage = null;
-            foreach (var message in Messages)
-            {
-                if (latestMessage == null || latestMessage.SendTime < message.SendTime)
-                {
-                    latestMessage = message;
-                }
-            }
-
-            return latestMessage;
-        }
-        
         public IOrderedEnumerable<Contact> AddContacts()
         {
             foreach (var contact in ChatDaten.AlleGruppen.Response)