Add config file and refactor windows

PamhagenSysCtrl/App.xaml.cs

@@ -1,4 +1,6 @@
 using PamhagenSysCtrl.Helpers;
+using System.IO;
+using System.Reflection;
 using System.Windows;
 using System.Windows.Threading;
 
@@ -6,14 +8,42 @@ namespace PamhagenSysCtrl {
     public partial class App : Application {
 
         public static PamhagenPlant? Plant;
-        public static Dispatcher MainDispatcher;
+        public static Dispatcher? MainDispatcher;
+
+        public static readonly string DataPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData), "Anlagensteuerung Pamhagen");
+        public static readonly string ConfigPath = Path.Combine(DataPath, "config.ini");
+        public static readonly string InstallPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles), "Anlagensteuerung Pamhagen");
+        public static readonly string TempPath = Path.Combine(Path.GetTempPath(), "Anlagensteuerung Pamhagen");
+
+        public static Config Config { get; private set; } = new(ConfigPath);
+        public static Version Version { get; private set; } = new();
 
         public App() :
             base() {
+            Directory.CreateDirectory(TempPath);
+            Directory.CreateDirectory(DataPath);
             MainDispatcher = Dispatcher;
+
+            var args = Environment.GetCommandLineArgs();
+            if (args.Length >= 2) {
+                Config = new(Path.GetFullPath(args[1]));
+            }
         }
 
         protected override async void OnStartup(StartupEventArgs evt) {
+            Version = new Version(typeof(App).GetTypeInfo().Assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion.Split('+')[0] ?? "0.0.0");
+
+            try {
+                Plant = new(Config.PlcPort);
+                await Plant.StartThread();
+            } catch (Exception exc) {
+                Plant?.Dispose();
+                Plant = null;
+                var str = $"Beim Aufbauen einer Verbindung zur SPS ist ein Fehler aufgetreten:\n\n{exc.GetType().Name}: {exc.Message}";
+                if (exc.InnerException != null) str += $"\n\n{exc.InnerException.GetType().Name}: {exc.InnerException.Message}";
+                MessageBox.Show(str, "SPS-Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
+            }
+
             base.OnStartup(evt);
         }