Throw sensible error if user without port assignment logs on

src/BreCalClient/MainWindow.xaml.cs

@@ -168,15 +168,25 @@ namespace BreCalClient
                 {
                     if (_loginResult.Id > 0)
                     {
-                        Mouse.OverrideCursor = Cursors.Wait;
+                        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}";
@@ -341,7 +351,7 @@ namespace BreCalClient
                     {
                         this.Dispatcher.Invoke(new Action(() =>
                         {
-                            ShowErrorDialog(ex.Message, "Error saving user information");                            
+                            ShowErrorDialog(ex.Message, "Error saving user information");
                         }));
                     }
                 }
@@ -387,7 +397,7 @@ namespace BreCalClient
             this.searchFilterControl.SetBerths(berths);
 
             this.SearchFilterControl_SearchFilterChanged();
-        }        
+        }
 
         private async void comboBoxSortOrder_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
         {
@@ -428,16 +438,23 @@ 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());
 
-            this.searchFilterControl.SetBerths(BreCalLists.Berths);            
+            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)
             {
@@ -472,8 +489,8 @@ namespace BreCalClient
                         SearchFilterModel.filterMap[_loginResult.Id] = currentFilter;
                 }
                 this.searchFilterControl.SetFilterFromModel(currentFilter);
-                
+
-                if (currentFilter.Ports != null)
+                if ((currentFilter.Ports != null) && (this.comboBoxPorts.ItemsSource != null))
                 {
                     foreach (Port p in this.comboBoxPorts.ItemsSource)
                     {
@@ -485,13 +502,14 @@ namespace BreCalClient
             _ = Task.Run(() => RefreshShipcalls());
             _ = Task.Run(() => RefreshShips());
 
+            return true;
         }
 
 
         public async Task RefreshShips()
         {
             while (true)
-            {                
+            {
                 Thread.Sleep(SHIPS_UPDATE_INTERVAL_SECONDS * 1000);
                 BreCalLists.InitializeShips(await _shipApi.ShipsGetAsync());
             }
@@ -706,7 +724,7 @@ namespace BreCalClient
             // first add everything
             this._visibleControlModels.AddRange(_allShipcallsDict.Values);
 
-            // now remove elements whose filter criteria are met            
+            // now remove elements whose filter criteria are met
 
             if(sfm.Berths.Count > 0 )
             {
@@ -1122,24 +1140,24 @@ namespace BreCalClient
                         if (msg.error_field != null)
                         {
                             caption = $"{caption}: {msg.error_field}";
-                        } 
+                        }
-                                                
+
                         if(msg.error_description != null)
                         {
-                            message = msg.error_description;                            
+                            message = msg.error_description;
-                        }                        
+                        }
                     }
                 }
                 catch (Exception) { }
-            }                
+            }
 
             _log.ErrorFormat("{0} - {1}", caption, message);
-            
+
             Dispatcher.Invoke(new Action(() =>
             {
                 MessageBox.Show(message, caption, MessageBoxButton.OK, MessageBoxImage.Error);
             }));
-            
+
         }
 
         private void EnableControlsForParticipant()
@@ -1157,6 +1175,6 @@ namespace BreCalClient
         }
 
         #endregion
-        
+
     }
 }

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>