feat: Anhänge je Stunde, Klausur-Sitzplan mischen, Gefährdungsbeurteilungs-Assistent

Lesson bekommt dieselbe Anhang-Infrastruktur wie Documentation (Material,
Arbeitsblätter, Experimentunterlagen), samt Fix einer Sync-Lücke, die Anhang-
Dateibytes bisher nur für Documentation statt generisch übertragen hat
(IHasAttachments). Sitzplan-Tab bekommt einen "Plätze mischen"-Button für
Klausursitzpläne. Neu: mehrschrittiger Gefährdungsbeurteilungs-Assistent mit
optionalem KI-Entwurf (ai-backend/gbu.php) und PDF-Export, Format bewusst als
JSON-Anhang statt eigener Datenbank-Entität. Details und Architekturentscheidungen
in TODO.md (4.2, 7.1.5, 10.1.8).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
2026-08-20 17:13:14 +02:00
co-authored by Claude Sonnet 5
parent 331033db5c
commit 038337997f
29 changed files with 1886 additions and 22 deletions
@@ -0,0 +1,203 @@
<Window xmlns="https://github.com/avaloniaui"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:vm="clr-namespace:LehrerApp.Desktop.ViewModels.Groups"
x:Class="LehrerApp.Desktop.Views.Groups.HazardAssessmentWizardDialog"
x:DataType="vm:HazardAssessmentWizardViewModel"
Title="{Binding DialogTitle}"
Width="720" Height="720" MinWidth="600" MinHeight="480"
CanResize="True" WindowStartupLocation="CenterOwner">
<Grid RowDefinitions="Auto,Auto,*,Auto" Margin="24">
<StackPanel Grid.Row="0" Spacing="2" Margin="0,0,0,10">
<TextBlock Text="{Binding DialogTitle}" Classes="dialogtitle"/>
<TextBlock FontSize="12" Opacity="0.7">
<Run Text="{Binding StepProgressLabel}"/>
<Run Text=" · "/>
<Run Text="{Binding StepTitle}" FontWeight="SemiBold"/>
</TextBlock>
</StackPanel>
<Border Grid.Row="1" IsVisible="{Binding CanUseAi}" Background="#FFF3E0" CornerRadius="6"
Padding="10" Margin="0,0,0,10">
<Grid ColumnDefinitions="*,Auto">
<StackPanel Grid.Column="0" Spacing="2">
<TextBlock FontSize="12" TextWrapping="Wrap">
<Run Text="🤖 KI-Entwurf auf Basis von Thema und Verlaufsplan dieser Stunde." FontWeight="SemiBold"/>
<LineBreak/>
<Run Text="⚠️ Kein rechtssicheres Dokument — bitte jede Angabe (insbesondere H-/P-Sätze und Mengen) eigenverantwortlich gegen das Sicherheitsdatenblatt prüfen, bevor du die Gefährdungsbeurteilung verwendest."/>
</TextBlock>
<TextBlock Text="{Binding AiError}" Foreground="Red" FontSize="11"
IsVisible="{Binding AiError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
</StackPanel>
<Button Grid.Column="1" Content="{Binding AiButtonLabel}" Command="{Binding RequestAiDraftCommand}"
IsEnabled="{Binding !IsAiBusy}" VerticalAlignment="Top" Margin="10,0,0,0"/>
</Grid>
</Border>
<ScrollViewer Grid.Row="2">
<StackPanel Spacing="14" Margin="0,0,12,0">
<!-- Schritt 1: Basisdaten -->
<StackPanel Spacing="10" IsVisible="{Binding IsBasicsStep}">
<StackPanel Spacing="4">
<TextBlock Text="Titel *" FontSize="12" Opacity="0.7"/>
<TextBox Text="{Binding Title}" PlaceholderText="z.B. Natrium in Wasser"/>
<TextBlock Text="{Binding TitleError}" Foreground="Red" FontSize="11"
IsVisible="{Binding TitleError, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
</StackPanel>
<Grid ColumnDefinitions="*,12,*,12,*">
<StackPanel Grid.Column="0" Spacing="4">
<TextBlock Text="Klassenstufe/Kurs" FontSize="12" Opacity="0.7"/>
<TextBox Text="{Binding GroupLabel}"/>
</StackPanel>
<StackPanel Grid.Column="2" Spacing="4">
<TextBlock Text="Datum" FontSize="12" Opacity="0.7"/>
<TextBox Text="{Binding DateText}" PlaceholderText="TT.MM.JJJJ"/>
</StackPanel>
<StackPanel Grid.Column="4" Spacing="4">
<TextBlock Text="Art des Versuchs" FontSize="12" Opacity="0.7"/>
<ComboBox ItemsSource="{Binding KindOptions}" SelectedItem="{Binding KindName}"
HorizontalAlignment="Stretch"/>
</StackPanel>
</Grid>
<StackPanel Spacing="4">
<TextBlock Text="Durchführung (Kurzbeschreibung)" FontSize="12" Opacity="0.7"/>
<TextBox Text="{Binding Procedure}" AcceptsReturn="True" TextWrapping="Wrap" Height="90"/>
</StackPanel>
</StackPanel>
<!-- Schritt 2: Gefahrstoffe -->
<StackPanel Spacing="10" IsVisible="{Binding IsSubstancesStep}">
<Grid ColumnDefinitions="*,Auto">
<TextBlock Grid.Column="0" Text="Verwendete Gefahrstoffe" FontSize="13" FontWeight="SemiBold"
VerticalAlignment="Center"/>
<Button Grid.Column="1" Content=" Stoff" Command="{Binding AddSubstanceCommand}"/>
</Grid>
<TextBlock Text="Noch keine Gefahrstoffe erfasst." Classes="emptyhint"
IsVisible="{Binding !HasSubstances}"/>
<ItemsControl ItemsSource="{Binding Substances}">
<ItemsControl.ItemTemplate>
<DataTemplate x:DataType="vm:HazardSubstanceEditItem">
<Border BorderBrush="{DynamicResource SystemControlForegroundBaseLowBrush}"
BorderThickness="0,0,0,1" Padding="0,10">
<StackPanel Spacing="6">
<Grid ColumnDefinitions="*,140,Auto">
<TextBox Grid.Column="0" Text="{Binding Name}" PlaceholderText="Stoffname"
Margin="0,0,8,0"/>
<TextBox Grid.Column="1" Text="{Binding Amount}" PlaceholderText="Menge, z.B. ca. 2 g"
Margin="0,0,8,0"/>
<Button Grid.Column="2" Content="✕" Command="{Binding RemoveCommand}"
ToolTip.Tip="Stoff entfernen"/>
</Grid>
<ItemsControl ItemsSource="{Binding PictogramOptions}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate><WrapPanel ItemSpacing="10" LineSpacing="4"/></ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate x:DataType="vm:GhsPictogramOption">
<CheckBox Content="{Binding Label}" IsChecked="{Binding IsSelected}" FontSize="12"/>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
<Grid ColumnDefinitions="*,12,*">
<StackPanel Grid.Column="0" Spacing="2">
<TextBlock Text="H-Sätze" FontSize="11" Opacity="0.6"/>
<TextBox Text="{Binding HStatements}" PlaceholderText="z.B. H314, H290"/>
</StackPanel>
<StackPanel Grid.Column="2" Spacing="2">
<TextBlock Text="P-Sätze" FontSize="11" Opacity="0.6"/>
<TextBox Text="{Binding PStatements}" PlaceholderText="z.B. P280, P305+P351+P338"/>
</StackPanel>
</Grid>
</StackPanel>
</Border>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</StackPanel>
<!-- Schritt 3: Gefährdungen & Schutzmaßnahmen -->
<StackPanel Spacing="14" IsVisible="{Binding IsHazardsStep}">
<StackPanel Spacing="6">
<TextBlock Text="Identifizierte Gefährdungen" FontSize="13" FontWeight="SemiBold"/>
<ItemsControl ItemsSource="{Binding Hazards}">
<ItemsControl.ItemTemplate>
<DataTemplate x:DataType="x:String">
<Grid ColumnDefinitions="*,Auto" Margin="0,2">
<TextBlock Grid.Column="0" Text="{Binding}" VerticalAlignment="Center"/>
<Button Grid.Column="1" Content="×" FontSize="13" Padding="7,2"
Command="{Binding $parent[ItemsControl].((vm:HazardAssessmentWizardViewModel)DataContext).RemoveHazardCommand}"
CommandParameter="{Binding}"/>
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
<Grid ColumnDefinitions="*,8,Auto">
<TextBox Grid.Column="0" Text="{Binding NewHazard}" PlaceholderText="z.B. Verätzungsgefahr an Haut/Augen"/>
<Button Grid.Column="2" Content="" Command="{Binding AddHazardCommand}"/>
</Grid>
</StackPanel>
<StackPanel Spacing="6">
<TextBlock Text="Schutzmaßnahmen" FontSize="13" FontWeight="SemiBold"/>
<ItemsControl ItemsSource="{Binding ProtectiveMeasures}">
<ItemsControl.ItemTemplate>
<DataTemplate x:DataType="x:String">
<Grid ColumnDefinitions="*,Auto" Margin="0,2">
<TextBlock Grid.Column="0" Text="{Binding}" VerticalAlignment="Center"/>
<Button Grid.Column="1" Content="×" FontSize="13" Padding="7,2"
Command="{Binding $parent[ItemsControl].((vm:HazardAssessmentWizardViewModel)DataContext).RemoveProtectiveMeasureCommand}"
CommandParameter="{Binding}"/>
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
<Grid ColumnDefinitions="*,8,Auto">
<TextBox Grid.Column="0" Text="{Binding NewProtectiveMeasure}" PlaceholderText="z.B. Schutzbrille, Handschuhe, Abzug"/>
<Button Grid.Column="2" Content="" Command="{Binding AddProtectiveMeasureCommand}"/>
</Grid>
</StackPanel>
</StackPanel>
<!-- Schritt 4: Erste Hilfe & Entsorgung -->
<StackPanel Spacing="10" IsVisible="{Binding IsFirstAidStep}">
<StackPanel Spacing="4">
<TextBlock Text="Erste Hilfe" FontSize="12" Opacity="0.7"/>
<TextBox Text="{Binding FirstAid}" AcceptsReturn="True" TextWrapping="Wrap" Height="90"/>
</StackPanel>
<StackPanel Spacing="4">
<TextBlock Text="Entsorgung" FontSize="12" Opacity="0.7"/>
<TextBox Text="{Binding Disposal}" AcceptsReturn="True" TextWrapping="Wrap" Height="70"/>
</StackPanel>
<StackPanel Spacing="4">
<TextBlock Text="Weitere Hinweise" FontSize="12" Opacity="0.7"/>
<TextBox Text="{Binding Notes}" AcceptsReturn="True" TextWrapping="Wrap" Height="60"/>
</StackPanel>
</StackPanel>
<!-- Schritt 5: Zusammenfassung -->
<StackPanel Spacing="8" IsVisible="{Binding IsSummaryStep}">
<TextBlock Text="{Binding Title}" FontSize="15" FontWeight="SemiBold"/>
<TextBlock FontSize="12" Opacity="0.7">
<Run Text="{Binding GroupLabel}"/>
<Run Text=" · "/>
<Run Text="{Binding KindName}"/>
</TextBlock>
<TextBlock Text="{Binding Procedure}" TextWrapping="Wrap"/>
<TextBlock Text="{Binding Substances.Count, StringFormat='{}{0} Gefahrstoff(e) erfasst'}" FontSize="12"/>
<TextBlock Text="Alle Angaben vor dem Einsatz noch einmal gegenprüfen." FontSize="12" Opacity="0.7"
IsVisible="{Binding IsAiAssisted}"/>
</StackPanel>
</StackPanel>
</ScrollViewer>
<Grid Grid.Row="3" ColumnDefinitions="Auto,*,Auto,8,Auto,8,Auto" Margin="0,16,0,0">
<Button Grid.Column="0" Content="Abbrechen" Click="OnCancel"/>
<Button Grid.Column="2" Content="Zurück" Command="{Binding BackCommand}"
IsVisible="{Binding !IsFirstStep}"/>
<Button Grid.Column="4" Content="Weiter" Command="{Binding NextCommand}"
IsVisible="{Binding !IsLastStep}"/>
<Button Grid.Column="6" Content="Speichern" Click="OnSave" IsVisible="{Binding IsLastStep}"/>
</Grid>
</Grid>
</Window>