Throw sensible error if user without port assignment logs on

src/BreCalClient/MainWindow.xaml.cs

@@ -169,14 +169,24 @@ namespace BreCalClient
                     if (_loginResult.Id > 0)
                     {
                         Mouse.OverrideCursor = Cursors.Wait;                        
-                        this.busyIndicator.IsBusy = false;
                         this._userApi.Configuration.ApiKey["Authorization"] = _loginResult.Token;
                         this._shipcallApi.Configuration.ApiKey["Authorization"] = _loginResult.Token;
                         this._timesApi.Configuration.ApiKey["Authorization"] = _loginResult.Token;
                         this._staticApi.Configuration.ApiKey["Authorization"] = _loginResult.Token;
                         this._shipApi.Configuration.ApiKey["Authorization"] = _loginResult.Token;
-                        this.LoadStaticLists();
+                        bool loadingSuccessful = await this.LoadStaticLists();
-                        this.labelUsername.Text = $"{_loginResult.FirstName} {_loginResult.LastName}";
+                        if (loadingSuccessful)
+                        {
+                            this.labelUsername.Text = $"{_loginResult.FirstName} {_loginResult.LastName}";
+                            this.busyIndicator.IsBusy = false;
+                        } 
+                        else
+                        {
+                            Mouse.OverrideCursor = null;
+                            textUsername.Text = "";
+                            textPassword.Password = "";
+                            textUsername.Focus();
+                        }
                     }
                 }
                 labelGeneralStatus.Text = $"Connection {ConnectionStatus.SUCCESSFUL}";
@@ -428,15 +438,22 @@ namespace BreCalClient
 
         #region network operations
 
-        private async void LoadStaticLists()
+        private async Task<bool> LoadStaticLists()
         {
-            if (_loginResult == null) return;
+            if (_loginResult == null) return false;
 
             BreCalLists.InitializePorts(await _staticApi.GetPortsAsync());
             BreCalLists.InitializeBerths(await _staticApi.BerthsGetAsync());
             BreCalLists.InitializeShips(await _shipApi.ShipsGetAsync());
             BreCalLists.InitializeParticipants(await _staticApi.ParticipantsGetAsync());
 
+            if(BreCalLists.Participants.Count == 0)
+            {
+                MessageBox.Show(BreCalClient.Resources.Resources.textNoPortAssigned, BreCalClient.Resources.Resources.textError, MessageBoxButton.OK, MessageBoxImage.Error);
+                Mouse.OverrideCursor = Cursors.Wait;
+                return false;
+            }
+
             this.searchFilterControl.SetBerths(BreCalLists.Berths);
 
             foreach (Participant participant in BreCalLists.Participants)
@@ -473,7 +490,7 @@ namespace BreCalClient
                 }
                 this.searchFilterControl.SetFilterFromModel(currentFilter);
 
-                if (currentFilter.Ports != null)
+                if ((currentFilter.Ports != null) && (this.comboBoxPorts.ItemsSource != null))
                 {
                     foreach (Port p in this.comboBoxPorts.ItemsSource)
                     {
@@ -485,6 +502,7 @@ namespace BreCalClient
             _ = Task.Run(() => RefreshShipcalls());
             _ = Task.Run(() => RefreshShips());
 
+            return true;
         }
 
 

src/BreCalClient/Resources/Resources.Designer.cs

@@ -875,6 +875,15 @@ namespace BreCalClient.Resources {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to No port assigned to this participant.
+        /// </summary>
+        public static string textNoPortAssigned {
+            get {
+                return ResourceManager.GetString("textNoPortAssigned", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Not rotated.
         /// </summary>

src/BreCalClient/Resources/Resources.de.resx

@@ -553,4 +553,7 @@
   <data name="textStartTimeMissing" xml:space="preserve">
     <value>Wenn eine Ende-Zeit angegeben wird, muss auch eine Start-Zeit angegeben werden</value>
   </data>
+  <data name="textNoPortAssigned" xml:space="preserve">
+    <value>Es ist keine Hafenzuordnung vorhanden</value>
+  </data>
 </root>

src/BreCalClient/Resources/Resources.resx

@@ -601,4 +601,7 @@
   <data name="textStartTimeMissing" xml:space="preserve">
     <value>If an end time is set, a start time is also required</value>
   </data>
+  <data name="textNoPortAssigned" xml:space="preserve">
+    <value>No port assigned to this participant</value>
+  </data>
 </root>