feat: complete dashboard chapter

LehrerApp.Desktop/Views/Dashboard/DashboardView.axaml

@@ -9,21 +9,56 @@
       <Setter Property="Foreground" Value="Red"/>
       <Setter Property="FontWeight" Value="SemiBold"/>
     </Style>
+    <Style Selector="Border.daycell.selected">
+      <Setter Property="Background" Value="{DynamicResource SystemControlBackgroundAccentBrush}"/>
+      <Setter Property="BorderThickness" Value="2"/>
+      <Setter Property="BorderBrush" Value="{DynamicResource SystemAccentColor}"/>
+    </Style>
   </UserControl.Styles>
 
   <ScrollViewer Padding="24">
     <StackPanel Spacing="20">
 
       <!-- Begrüßung -->
-      <StackPanel>
-        <TextBlock Text="{Binding Greeting}" FontSize="14" Opacity="0.6"/>
-        <TextBlock Text="{Binding CurrentDate}" FontSize="24" FontWeight="SemiBold"/>
-      </StackPanel>
+      <Grid ColumnDefinitions="*,Auto">
+        <StackPanel>
+          <TextBlock Text="{Binding Greeting}" FontSize="14" Opacity="0.6"/>
+          <TextBlock Text="{Binding CurrentDate}" FontSize="24" FontWeight="SemiBold"/>
+        </StackPanel>
+        <Button Grid.Column="1" Content="Dashboard anpassen" Command="{Binding ToggleDashboardSettingsCommand}"
+                VerticalAlignment="Center"/>
+      </Grid>
 
-      <Grid ColumnDefinitions="*,*" RowDefinitions="Auto,Auto,Auto,Auto">
+      <Border Background="{DynamicResource SystemControlBackgroundAltHighBrush}" CornerRadius="8"
+              Padding="12" IsVisible="{Binding IsDashboardSettingsOpen}">
+        <ItemsControl ItemsSource="{Binding DashboardCards}">
+          <ItemsControl.ItemsPanel>
+            <ItemsPanelTemplate><WrapPanel Orientation="Horizontal"/></ItemsPanelTemplate>
+          </ItemsControl.ItemsPanel>
+          <ItemsControl.ItemTemplate>
+            <DataTemplate x:DataType="vm:DashboardCardOption">
+              <Border BorderBrush="{DynamicResource SystemControlForegroundBaseLowBrush}"
+                      BorderThickness="1" CornerRadius="6" Padding="8" Margin="4">
+                <StackPanel Orientation="Horizontal" Spacing="6">
+                  <CheckBox Content="{Binding Title}" IsChecked="{Binding IsVisible}" VerticalAlignment="Center"/>
+                  <Button Content="↑" Padding="6,2"
+                          Command="{Binding $parent[ItemsControl].((vm:DashboardViewModel)DataContext).MoveCardUpCommand}"
+                          CommandParameter="{Binding}"/>
+                  <Button Content="↓" Padding="6,2"
+                          Command="{Binding $parent[ItemsControl].((vm:DashboardViewModel)DataContext).MoveCardDownCommand}"
+                          CommandParameter="{Binding}"/>
+                </StackPanel>
+              </Border>
+            </DataTemplate>
+          </ItemsControl.ItemTemplate>
+        </ItemsControl>
+      </Border>
+
+      <Grid ColumnDefinitions="*,*" RowDefinitions="Auto,Auto,Auto,Auto,Auto">
 
         <!-- Heutige Stunden -->
-        <Border Grid.Column="0" Grid.Row="0" Margin="0,0,8,8"
+        <Border Grid.Column="{Binding TodayCard.Column}" Grid.Row="{Binding TodayCard.Row}"
+                IsVisible="{Binding TodayCard.IsVisible}" Margin="0,0,8,8"
                 Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
                 CornerRadius="8" Padding="16">
           <StackPanel>
@@ -63,7 +98,8 @@
         </Border>
 
         <!-- Offene Aufgaben -->
-        <Border Grid.Column="1" Grid.Row="0" Margin="8,0,0,8"
+        <Border Grid.Column="{Binding TasksCard.Column}" Grid.Row="{Binding TasksCard.Row}"
+                IsVisible="{Binding TasksCard.IsVisible}" Margin="8,0,0,8"
                 Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
                 CornerRadius="8" Padding="16">
           <StackPanel>
@@ -88,7 +124,8 @@
 
         <!-- Kalender: feste Position direkt unter Heute/Aufgaben, damit die wachsende
              Lerngruppen-Liste darunter ihn nicht nach unten verdrängt. -->
-        <Border Grid.Column="0" Grid.Row="1" Margin="0,0,8,8" HorizontalAlignment="Left"
+        <Border Grid.Column="{Binding CalendarCard.Column}" Grid.Row="{Binding CalendarCard.Row}"
+                IsVisible="{Binding CalendarCard.IsVisible}" Margin="0,0,8,8"
                 Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
                 CornerRadius="8" Padding="16">
           <StackPanel Spacing="8">
@@ -150,20 +187,24 @@
               </ItemsControl.ItemsPanel>
               <ItemsControl.ItemTemplate>
                 <DataTemplate x:DataType="vm:CalendarDayCell">
-                  <Border Classes="daycell" Classes.ownclass="{Binding IsOwnClassDay}"
-                          Classes.haslesson="{Binding HasLesson}"
-                          Classes.outside="{Binding !IsCurrentMonth}"
-                          Width="32" Height="32" Margin="1" CornerRadius="6"
-                          ToolTip.Tip="{Binding Tooltip}">
-                    <Grid>
-                      <TextBlock Classes="daynum" Classes.today="{Binding IsToday}"
-                                 Text="{Binding DayNumber}" FontSize="12"
-                                 HorizontalAlignment="Center" VerticalAlignment="Center"/>
-                      <Ellipse Width="5" Height="5" Fill="#E53935" Margin="0,0,0,3"
-                               HorizontalAlignment="Center" VerticalAlignment="Bottom"
-                               IsVisible="{Binding HasExam}"/>
-                    </Grid>
-                  </Border>
+                  <Button Background="Transparent" BorderThickness="0" Padding="0" Margin="1"
+                          Command="{Binding $parent[ItemsControl].((vm:DashboardViewModel)DataContext).SelectCalendarDayCommand}"
+                          CommandParameter="{Binding}" ToolTip.Tip="{Binding Tooltip}">
+                    <Border Classes="daycell" Classes.ownclass="{Binding IsOwnClassDay}"
+                            Classes.haslesson="{Binding HasLesson}"
+                            Classes.outside="{Binding !IsCurrentMonth}"
+                            Classes.selected="{Binding IsSelected}"
+                            Width="32" Height="32" CornerRadius="6">
+                      <Grid>
+                        <TextBlock Classes="daynum" Classes.today="{Binding IsToday}"
+                                   Text="{Binding DayNumber}" FontSize="12"
+                                   HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                        <Ellipse Width="5" Height="5" Fill="#E53935" Margin="0,0,0,3"
+                                 HorizontalAlignment="Center" VerticalAlignment="Bottom"
+                                 IsVisible="{Binding HasExam}"/>
+                      </Grid>
+                    </Border>
+                  </Button>
                 </DataTemplate>
               </ItemsControl.ItemTemplate>
             </ItemsControl>
@@ -183,11 +224,35 @@
                 <TextBlock Text="Meine Klasse" FontSize="10" Opacity="0.6"/>
               </StackPanel>
             </StackPanel>
+
+            <Separator Margin="0,4"/>
+            <TextBlock Text="{Binding SelectedDayLabel}" FontWeight="SemiBold" FontSize="12"/>
+            <ItemsControl ItemsSource="{Binding SelectedDayEvents}">
+              <ItemsControl.ItemTemplate>
+                <DataTemplate x:DataType="vm:CalendarEventItem">
+                  <Button Background="Transparent" BorderThickness="0" Padding="0" Margin="0,3"
+                          HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"
+                          Command="{Binding $parent[ItemsControl].((vm:DashboardViewModel)DataContext).OpenCalendarEventCommand}"
+                          CommandParameter="{Binding}">
+                    <Grid ColumnDefinitions="Auto,*">
+                      <TextBlock Text="{Binding KindLabel}" FontSize="10" Opacity="0.55" Width="58"/>
+                      <StackPanel Grid.Column="1">
+                        <TextBlock Text="{Binding Title}" FontSize="12" FontWeight="SemiBold"/>
+                        <TextBlock Text="{Binding Subtitle}" FontSize="10" Opacity="0.6"/>
+                      </StackPanel>
+                    </Grid>
+                  </Button>
+                </DataTemplate>
+              </ItemsControl.ItemTemplate>
+            </ItemsControl>
+            <TextBlock Text="Keine Termine an diesem Tag." Classes="emptyhint"
+                       IsVisible="{Binding !SelectedDayEvents.Count}"/>
           </StackPanel>
         </Border>
 
         <!-- Offene Entschuldigungen: neben dem Kalender, ebenfalls feste Position -->
-        <Border Grid.Column="1" Grid.Row="1" Margin="8,0,0,8" VerticalAlignment="Top"
+        <Border Grid.Column="{Binding ExcusesCard.Column}" Grid.Row="{Binding ExcusesCard.Row}"
+                IsVisible="{Binding ExcusesCard.IsVisible}" Margin="8,0,0,8" VerticalAlignment="Top"
                 Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
                 CornerRadius="8" Padding="16">
           <StackPanel>
@@ -220,7 +285,8 @@
         </Border>
 
         <!-- Fehlzeiten-Warnung (5.2.3) -->
-        <Border Grid.Column="0" Grid.Row="2" Margin="0,0,8,8" VerticalAlignment="Top"
+        <Border Grid.Column="{Binding AttendanceCard.Column}" Grid.Row="{Binding AttendanceCard.Row}"
+                IsVisible="{Binding AttendanceCard.IsVisible}" Margin="0,0,8,8" VerticalAlignment="Top"
                 Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
                 CornerRadius="8" Padding="16">
           <StackPanel>
@@ -249,7 +315,8 @@
         </Border>
 
         <!-- Förderplan-Wiedervorlage (5.3.2) -->
-        <Border Grid.Column="1" Grid.Row="2" Margin="8,0,0,8" VerticalAlignment="Top"
+        <Border Grid.Column="{Binding SupportCard.Column}" Grid.Row="{Binding SupportCard.Row}"
+                IsVisible="{Binding SupportCard.IsVisible}" Margin="8,0,0,8" VerticalAlignment="Top"
                 Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
                 CornerRadius="8" Padding="16">
           <StackPanel>
@@ -278,8 +345,113 @@
           </StackPanel>
         </Border>
 
-        <!-- Meine Lerngruppen: wächst mit der Zeit, deshalb ganz unten und volle Breite -->
-        <Border Grid.Column="0" Grid.Row="3" Grid.ColumnSpan="2"
+        <!-- Anstehende Termine (9.3) -->
+        <Border Grid.Column="{Binding UpcomingCard.Column}" Grid.Row="{Binding UpcomingCard.Row}"
+                IsVisible="{Binding UpcomingCard.IsVisible}" Margin="0,0,8,8" VerticalAlignment="Top"
+                Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
+                CornerRadius="8" Padding="16">
+          <StackPanel>
+            <TextBlock Text="ANSTEHENDE TERMINE" FontSize="11" FontWeight="Bold"
+                       Opacity="0.5" Margin="0,0,0,10"/>
+            <ItemsControl ItemsSource="{Binding UpcomingDates}">
+              <ItemsControl.ItemTemplate>
+                <DataTemplate x:DataType="vm:UpcomingDateItem">
+                  <Button Background="Transparent" BorderThickness="0" Padding="0" Margin="0,4"
+                          HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"
+                          Command="{Binding $parent[ItemsControl].((vm:DashboardViewModel)DataContext).OpenUpcomingDateCommand}"
+                          CommandParameter="{Binding}">
+                    <Grid ColumnDefinitions="Auto,*,Auto">
+                      <Border Background="{DynamicResource SystemAccentColorLight2}" CornerRadius="4"
+                              Padding="5,2" VerticalAlignment="Center">
+                        <TextBlock Text="{Binding KindLabel}" FontSize="10"/>
+                      </Border>
+                      <StackPanel Grid.Column="1" Margin="8,0">
+                        <TextBlock Text="{Binding Title}" FontSize="13" FontWeight="SemiBold"
+                                   TextTrimming="CharacterEllipsis"/>
+                        <TextBlock Text="{Binding Subtitle}" FontSize="11" Opacity="0.6"/>
+                      </StackPanel>
+                      <TextBlock Grid.Column="2" Text="{Binding DateDisplay}" FontSize="12"
+                                 VerticalAlignment="Center" Classes.overdue="{Binding IsOverdue}"/>
+                    </Grid>
+                  </Button>
+                </DataTemplate>
+              </ItemsControl.ItemTemplate>
+            </ItemsControl>
+            <TextBlock Text="Keine Termine in den nächsten 30 Tagen." Classes="emptyhint"
+                       IsVisible="{Binding !UpcomingDates.Count}"/>
+          </StackPanel>
+        </Border>
+
+        <!-- Offene Korrekturen (9.4) -->
+        <Border Grid.Column="{Binding CorrectionsCard.Column}" Grid.Row="{Binding CorrectionsCard.Row}"
+                IsVisible="{Binding CorrectionsCard.IsVisible}" Margin="8,0,0,8" VerticalAlignment="Top"
+                Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
+                CornerRadius="8" Padding="16">
+          <StackPanel>
+            <TextBlock Text="OFFENE KORREKTUREN" FontSize="11" FontWeight="Bold"
+                       Opacity="0.5" Margin="0,0,0,10"/>
+            <ItemsControl ItemsSource="{Binding OpenCorrections}">
+              <ItemsControl.ItemTemplate>
+                <DataTemplate x:DataType="vm:CorrectionProgressItem">
+                  <Button Background="Transparent" BorderThickness="0" Padding="0" Margin="0,5"
+                          HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"
+                          Command="{Binding $parent[ItemsControl].((vm:DashboardViewModel)DataContext).OpenCorrectionCommand}"
+                          CommandParameter="{Binding}">
+                    <StackPanel Spacing="3">
+                      <Grid ColumnDefinitions="*,Auto">
+                        <TextBlock Text="{Binding Title}" FontSize="13" FontWeight="SemiBold"/>
+                        <TextBlock Grid.Column="1" Text="{Binding DateDisplay}" FontSize="11" Opacity="0.6"/>
+                      </Grid>
+                      <TextBlock Text="{Binding GroupName}" FontSize="11" Opacity="0.6"/>
+                      <ProgressBar Minimum="0" Maximum="100" Value="{Binding Percent}" Height="6"/>
+                      <TextBlock Text="{Binding ProgressDisplay}" FontSize="10" Opacity="0.65"/>
+                    </StackPanel>
+                  </Button>
+                </DataTemplate>
+              </ItemsControl.ItemTemplate>
+            </ItemsControl>
+            <TextBlock Text="Keine offenen Korrekturen." Classes="emptyhint"
+                       IsVisible="{Binding !OpenCorrections.Count}"/>
+          </StackPanel>
+        </Border>
+
+        <!-- Auffälligkeiten (9.5) -->
+        <Border Grid.Column="{Binding AlertsCard.Column}" Grid.Row="{Binding AlertsCard.Row}"
+                IsVisible="{Binding AlertsCard.IsVisible}" Margin="0,0,8,8" VerticalAlignment="Top"
+                Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
+                CornerRadius="8" Padding="16">
+          <StackPanel>
+            <TextBlock Text="AUFFÄLLIGKEITEN" FontSize="11" FontWeight="Bold"
+                       Opacity="0.5" Margin="0,0,0,10"/>
+            <ItemsControl ItemsSource="{Binding Alerts}">
+              <ItemsControl.ItemTemplate>
+                <DataTemplate x:DataType="vm:DashboardAlertItem">
+                  <Button Background="Transparent" BorderThickness="0" Padding="0" Margin="0,4"
+                          HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"
+                          Command="{Binding $parent[ItemsControl].((vm:DashboardViewModel)DataContext).OpenAlertCommand}"
+                          CommandParameter="{Binding}">
+                    <Grid ColumnDefinitions="4,*">
+                      <Border Background="{Binding SeverityColor}" CornerRadius="2" Margin="0,0,9,0"/>
+                      <StackPanel Grid.Column="1">
+                        <Grid ColumnDefinitions="*,Auto">
+                          <TextBlock Text="{Binding StudentName}" FontSize="13" FontWeight="SemiBold"/>
+                          <TextBlock Grid.Column="1" Text="{Binding KindLabel}" FontSize="10" Opacity="0.6"/>
+                        </Grid>
+                        <TextBlock Text="{Binding Detail}" FontSize="11" Opacity="0.65"/>
+                      </StackPanel>
+                    </Grid>
+                  </Button>
+                </DataTemplate>
+              </ItemsControl.ItemTemplate>
+            </ItemsControl>
+            <TextBlock Text="Keine Auffälligkeiten erkannt." Classes="emptyhint"
+                       IsVisible="{Binding !Alerts.Count}"/>
+          </StackPanel>
+        </Border>
+
+        <!-- Meine Lerngruppen -->
+        <Border Grid.Column="{Binding GroupsCard.Column}" Grid.Row="{Binding GroupsCard.Row}"
+                IsVisible="{Binding GroupsCard.IsVisible}"
                 Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
                 CornerRadius="8" Padding="16">
           <StackPanel>