LehrerApp/LehrerApp.Desktop/Views/Students/DocumentationDialog.axaml

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:vm="clr-namespace:LehrerApp.Desktop.ViewModels.Students"
        x:Class="LehrerApp.Desktop.Views.Students.DocumentationDialog"
        x:DataType="vm:DocumentationDialogViewModel"
        Title="{Binding DialogTitle}"
        Width="480" SizeToContent="Height" MinHeight="360"
        CanResize="True" WindowStartupLocation="CenterOwner">

  <Grid RowDefinitions="*,Auto" Margin="24">
    <ScrollViewer Grid.Row="0" MaxHeight="560">
      <StackPanel Spacing="12">
        <TextBlock Text="{Binding DialogTitle}" Classes="dialogtitle"/>

        <StackPanel Spacing="4" IsVisible="{Binding CanPickStudent}">
          <TextBlock Text="Bezug *" FontSize="12" Opacity="0.7"/>
          <ComboBox ItemsSource="{Binding StudentOptions}" SelectedItem="{Binding SelectedStudent}"
                    DisplayMemberBinding="{Binding Name}" HorizontalAlignment="Stretch"
                    PlaceholderText="Schüler oder gesamte Lerngruppe wählen"/>
          <TextBlock Text="{Binding StudentError}" Foreground="Red" FontSize="11"
                     IsVisible="{Binding StudentError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
        </StackPanel>

        <Grid ColumnDefinitions="*,12,140">
          <StackPanel Grid.Column="0" Spacing="4">
            <TextBlock Text="Titel *" FontSize="12" Opacity="0.7"/>
            <TextBox Text="{Binding Title}"/>
            <TextBlock Text="{Binding TitleError}" Foreground="Red" FontSize="11"
                       IsVisible="{Binding TitleError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
          </StackPanel>
          <StackPanel Grid.Column="2" Spacing="4">
            <TextBlock Text="Datum *" FontSize="12" Opacity="0.7"/>
            <TextBox Text="{Binding DateText}" PlaceholderText="TT.MM.JJJJ"/>
            <TextBlock Text="{Binding DateTextError}" Foreground="Red" FontSize="11"
                       IsVisible="{Binding DateTextError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
          </StackPanel>
        </Grid>

        <StackPanel Spacing="4">
          <TextBlock Text="Typ *" FontSize="12" Opacity="0.7"/>
          <ComboBox ItemsSource="{Binding TypeOptions}" SelectedItem="{Binding TypeName}"
                    HorizontalAlignment="Stretch"/>
        </StackPanel>

        <StackPanel Spacing="4">
          <TextBlock Text="Beschreibung" FontSize="12" Opacity="0.7"/>
          <TextBox Text="{Binding Content}" AcceptsReturn="True" Height="80" TextWrapping="Wrap"/>
        </StackPanel>

        <!-- Gespräch: Teilnehmer (5.1.2) -->
        <StackPanel Spacing="6" IsVisible="{Binding IsConversation}">
          <TextBlock Text="Teilnehmer" FontSize="12" Opacity="0.7"/>
          <ItemsControl ItemsSource="{Binding Participants}">
            <ItemsControl.ItemTemplate>
              <DataTemplate>
                <Grid ColumnDefinitions="*,Auto" Margin="0,2">
                  <TextBlock Grid.Column="0" Text="{Binding}" VerticalAlignment="Center" FontSize="13"/>
                  <Button Grid.Column="1" Content="×" Padding="7,2" FontSize="13"
                          Command="{Binding $parent[ItemsControl].((vm:DocumentationDialogViewModel)DataContext).RemoveParticipantCommand}"
                          CommandParameter="{Binding}"/>
                </Grid>
              </DataTemplate>
            </ItemsControl.ItemTemplate>
          </ItemsControl>
          <Grid ColumnDefinitions="*,8,Auto">
            <TextBox Grid.Column="0" Text="{Binding NewParticipant}" PlaceholderText="Name"/>
            <Button Grid.Column="2" Content="＋" Command="{Binding AddParticipantCommand}"/>
          </Grid>
        </StackPanel>

        <!-- Fehlzeit: Aktenvermerk (5.1.1) -->
        <StackPanel Spacing="8" IsVisible="{Binding IsAbsence}">
          <TextBlock Text="Freier Aktenvermerk zu einer Abwesenheit (z.B. Krankschreibung eingereicht). Ersetzt nicht die Anwesenheits-Erfassung in der Mitarbeit-Ansicht und fließt nicht in die Fehlzeitenbilanz ein."
                     FontSize="11" Opacity="0.55" TextWrapping="Wrap"/>
          <Grid ColumnDefinitions="120,12,*">
            <StackPanel Grid.Column="0" Spacing="4">
              <TextBlock Text="Stunden" FontSize="12" Opacity="0.7"/>
              <NumericUpDown Value="{Binding LessonCount}" Minimum="0" FormatString="0"/>
            </StackPanel>
            <StackPanel Grid.Column="2" Spacing="4" VerticalAlignment="Bottom">
              <CheckBox Content="Entschuldigt" IsChecked="{Binding AbsenceExcused}"/>
            </StackPanel>
          </Grid>
          <StackPanel Spacing="4">
            <TextBlock Text="Grund" FontSize="12" Opacity="0.7"/>
            <TextBox Text="{Binding AbsenceReason}"/>
          </StackPanel>
        </StackPanel>

        <!-- Förderplan (5.3.1) -->
        <StackPanel Spacing="8" IsVisible="{Binding IsSupportPlan}">
          <TextBlock Text="Maßnahmen" FontSize="12" Opacity="0.7"/>
          <ItemsControl ItemsSource="{Binding Measures}">
            <ItemsControl.ItemTemplate>
              <DataTemplate>
                <Grid ColumnDefinitions="*,Auto" Margin="0,2">
                  <TextBlock Grid.Column="0" Text="{Binding}" VerticalAlignment="Center" FontSize="13"/>
                  <Button Grid.Column="1" Content="×" Padding="7,2" FontSize="13"
                          Command="{Binding $parent[ItemsControl].((vm:DocumentationDialogViewModel)DataContext).RemoveMeasureCommand}"
                          CommandParameter="{Binding}"/>
                </Grid>
              </DataTemplate>
            </ItemsControl.ItemTemplate>
          </ItemsControl>
          <Grid ColumnDefinitions="*,8,Auto">
            <TextBox Grid.Column="0" Text="{Binding NewMeasure}" PlaceholderText="Maßnahme"/>
            <Button Grid.Column="2" Content="＋" Command="{Binding AddMeasureCommand}"/>
          </Grid>
          <Grid ColumnDefinitions="*,12,*">
            <StackPanel Grid.Column="0" Spacing="4">
              <TextBlock Text="Überprüfung am" FontSize="12" Opacity="0.7"/>
              <TextBox Text="{Binding ReviewDateText}" PlaceholderText="TT.MM.JJJJ"/>
              <TextBlock Text="{Binding ReviewDateTextError}" Foreground="Red" FontSize="11"
                         IsVisible="{Binding ReviewDateTextError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
            </StackPanel>
            <StackPanel Grid.Column="2" Spacing="4">
              <TextBlock Text="Status" FontSize="12" Opacity="0.7"/>
              <ComboBox ItemsSource="{Binding SupportStatusOptions}" SelectedItem="{Binding SupportStatusName}"
                        HorizontalAlignment="Stretch"/>
            </StackPanel>
          </Grid>
        </StackPanel>

        <!-- Elternanruf: Planung (Abhaken/Protokoll läuft separat über "Gespräch begleiten") -->
        <StackPanel Spacing="6" IsVisible="{Binding IsParentCall}">
          <TextBlock Text="Gesprächspunkte planen. Abgehakt und protokolliert wird während des Anrufs über den Button 'Gespräch begleiten' in der Übersicht."
                     FontSize="11" Opacity="0.55" TextWrapping="Wrap"/>
          <ItemsControl ItemsSource="{Binding CallPoints}">
            <ItemsControl.ItemTemplate>
              <DataTemplate>
                <Grid ColumnDefinitions="*,Auto" Margin="0,2">
                  <TextBlock Grid.Column="0" Text="{Binding}" VerticalAlignment="Center" FontSize="13"/>
                  <Button Grid.Column="1" Content="×" Padding="7,2" FontSize="13"
                          Command="{Binding $parent[ItemsControl].((vm:DocumentationDialogViewModel)DataContext).RemoveCallPointCommand}"
                          CommandParameter="{Binding}"/>
                </Grid>
              </DataTemplate>
            </ItemsControl.ItemTemplate>
          </ItemsControl>
          <Grid ColumnDefinitions="*,8,Auto">
            <TextBox Grid.Column="0" Text="{Binding NewCallPoint}" PlaceholderText="Gesprächspunkt"/>
            <Button Grid.Column="2" Content="＋" Command="{Binding AddCallPointCommand}"/>
          </Grid>
        </StackPanel>

        <!-- Elternbrief (5.1) -->
        <StackPanel Spacing="8" IsVisible="{Binding IsParentLetter}">
          <StackPanel Spacing="4">
            <TextBlock Text="Entwurf / Inhalt" FontSize="12" Opacity="0.7"/>
            <TextBox Text="{Binding LetterDraftContent}" AcceptsReturn="True" Height="70" TextWrapping="Wrap"/>
          </StackPanel>
          <Grid ColumnDefinitions="*,12,*">
            <StackPanel Grid.Column="0" Spacing="4">
              <TextBlock Text="Versendet am" FontSize="12" Opacity="0.7"/>
              <TextBox Text="{Binding LetterSentDateText}" PlaceholderText="TT.MM.JJJJ"/>
              <TextBlock Text="{Binding LetterSentDateError}" Foreground="Red" FontSize="11"
                         IsVisible="{Binding LetterSentDateError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
            </StackPanel>
            <StackPanel Grid.Column="2" Spacing="4" VerticalAlignment="Bottom">
              <CheckBox Content="Rückmeldung erhalten" IsChecked="{Binding LetterResponseReceived}"/>
            </StackPanel>
          </Grid>
          <Grid ColumnDefinitions="*,12,*">
            <StackPanel Grid.Column="0" Spacing="4">
              <TextBlock Text="Rückmeldung am" FontSize="12" Opacity="0.7"/>
              <TextBox Text="{Binding LetterResponseDateText}" PlaceholderText="TT.MM.JJJJ"/>
              <TextBlock Text="{Binding LetterResponseDateError}" Foreground="Red" FontSize="11"
                         IsVisible="{Binding LetterResponseDateError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
            </StackPanel>
            <StackPanel Grid.Column="2" Spacing="4">
              <TextBlock Text="Rückmeldung (Notiz)" FontSize="12" Opacity="0.7"/>
              <TextBox Text="{Binding LetterResponseNote}"/>
            </StackPanel>
          </Grid>
        </StackPanel>

        <!-- Anhänge (alle Typen) -->
        <StackPanel Spacing="6">
          <Grid ColumnDefinitions="*,Auto">
            <TextBlock Grid.Column="0" Text="Anhänge" FontSize="12" Opacity="0.7" VerticalAlignment="Center"/>
            <Button Grid.Column="1" Content="＋ Datei" FontSize="12" Padding="8,4" Click="OnAddAttachment"/>
          </Grid>
          <ItemsControl ItemsSource="{Binding Attachments}">
            <ItemsControl.ItemTemplate>
              <DataTemplate x:DataType="vm:AttachmentItem">
                <Grid ColumnDefinitions="*,Auto,Auto,Auto" Margin="0,2">
                  <TextBlock Grid.Column="0" Text="{Binding FileName}" VerticalAlignment="Center" FontSize="13"
                             TextTrimming="CharacterEllipsis"/>
                  <TextBlock Grid.Column="1" Text="{Binding SizeDisplay}" VerticalAlignment="Center"
                             FontSize="11" Opacity="0.5" Margin="6,0"/>
                  <Button Grid.Column="2" Content="Speichern" FontSize="11" Padding="7,2" Margin="0,0,4,0"
                          Click="OnOpenAttachment" Tag="{Binding}"/>
                  <Button Grid.Column="3" Content="×" FontSize="13" Padding="7,2"
                          Command="{Binding $parent[ItemsControl].((vm:DocumentationDialogViewModel)DataContext).RemoveAttachmentCommand}"
                          CommandParameter="{Binding}"/>
                </Grid>
              </DataTemplate>
            </ItemsControl.ItemTemplate>
          </ItemsControl>
          <TextBlock Text="{Binding AttachmentError}" Foreground="Red" FontSize="11"
                     IsVisible="{Binding AttachmentError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
        </StackPanel>

        <!-- Labels zur Nachverfolgung (alle Typen) -->
        <StackPanel Spacing="6">
          <TextBlock Text="Labels" FontSize="12" Opacity="0.7"/>
          <ItemsControl ItemsSource="{Binding Tags}">
            <ItemsControl.ItemsPanel>
              <ItemsPanelTemplate><WrapPanel ItemSpacing="6" LineSpacing="6"/></ItemsPanelTemplate>
            </ItemsControl.ItemsPanel>
            <ItemsControl.ItemTemplate>
              <DataTemplate>
                <Border Background="{DynamicResource SystemControlBackgroundBaseMediumBrush}"
                        CornerRadius="10" Padding="8,3">
                  <StackPanel Orientation="Horizontal" Spacing="5">
                    <TextBlock Text="{Binding}" FontSize="11"/>
                    <Button Content="×" FontSize="11" Padding="0" Background="Transparent"
                            Command="{Binding $parent[ItemsControl].((vm:DocumentationDialogViewModel)DataContext).RemoveTagCommand}"
                            CommandParameter="{Binding}"/>
                  </StackPanel>
                </Border>
              </DataTemplate>
            </ItemsControl.ItemTemplate>
          </ItemsControl>
          <Grid ColumnDefinitions="*,8,Auto">
            <AutoCompleteBox Grid.Column="0" Text="{Binding NewTag}"
                              ItemsSource="{Binding TagSuggestions}"
                              FilterMode="Contains" MinimumPrefixLength="0"
                              PlaceholderText="Label (z.B. Kritisch, Nacharbeiten)"/>
            <Button Grid.Column="2" Content="＋" Command="{Binding AddTagCommand}"/>
          </Grid>
        </StackPanel>

        <CheckBox Content="Vertraulich" IsChecked="{Binding IsConfidential}"
                  ToolTip.Tip="Blendet den Inhalt in der Übersicht standardmäßig aus; erst nach Klick auf 'Anzeigen' sichtbar."/>

        <CheckBox Content="Nicht mit WebUntis abgleichen" IsChecked="{Binding ExcludeFromWebUntisSync}"
                  ToolTip.Tip="Erscheint dann nicht als Vorschlag zum Nacherfassen im WebUntis-Klassenbuch-Abgleich (Dashboard)."/>
      </StackPanel>
    </ScrollViewer>

    <Grid Grid.Row="1" ColumnDefinitions="*,8,*" Margin="0,20,0,0">
      <Button Grid.Column="0" Content="Abbrechen" HorizontalAlignment="Stretch" Click="OnCancel"/>
      <Button Grid.Column="2" Content="Speichern" HorizontalAlignment="Stretch" Click="OnSave"/>
    </Grid>
  </Grid>
</Window>