agent-wiki-ui/Gui/MainWindow.axaml

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:gui="using:AgentWikiUi.Gui"
        xmlns:core="using:AgentWikiUi.Core"
        x:Class="AgentWikiUi.Gui.MainWindow"
        x:DataType="gui:MainViewModel"
        Title="{x:Static core:AppInfo.Name}"
        MinWidth="900" MinHeight="600">

  <Grid ColumnDefinitions="Auto,*">

    <!-- Barra laterale -->
    <Border Grid.Column="0" Width="272" IsVisible="{Binding SidebarOpen}"
            Background="{DynamicResource Muted}" BorderBrush="{DynamicResource Border}" BorderThickness="0,0,1,0">
      <DockPanel>
        <StackPanel DockPanel.Dock="Top" Margin="14,16,14,10" Spacing="14">
          <StackPanel Orientation="Horizontal" Spacing="10" Margin="4,0">
            <Border Width="28" Height="28" CornerRadius="8" Background="{DynamicResource Accent}">
              <Viewbox Width="16" Height="16">
                <Path Data="M12 2L14.4 8.6L21 11L14.4 13.4L12 20L9.6 13.4L3 11L9.6 8.6Z" Fill="{DynamicResource OnAccent}" />
              </Viewbox>
            </Border>
            <TextBlock Text="{x:Static core:AppInfo.Name}" FontWeight="SemiBold" VerticalAlignment="Center" />
          </StackPanel>
          <Button Classes="ghost" Command="{Binding NewChatCommand}" HorizontalAlignment="Stretch" HorizontalContentAlignment="Center"
                  Background="{DynamicResource Bg}" AutomationProperties.Name="Nuova chat">
            <StackPanel Orientation="Horizontal" Spacing="8">
              <Viewbox Width="16" Height="16"><Path Data="M12 5V19M5 12H19" Stroke="{DynamicResource Fg}" StrokeThickness="2" StrokeLineCap="Round" /></Viewbox>
              <TextBlock Text="Nuova chat" />
            </StackPanel>
          </Button>
        </StackPanel>
        <TextBlock DockPanel.Dock="Top" Text="CHAT" FontSize="11.5" FontWeight="SemiBold" Foreground="{DynamicResource FgMuted}" Margin="22,8,14,4" />
        <TextBlock DockPanel.Dock="Top" Text="Nessuna chat salvata" Foreground="{DynamicResource FgMuted}" FontSize="13.5" Margin="22,6"
                   IsVisible="{Binding !Chats.Count}" />
        <ScrollViewer>
          <ItemsControl ItemsSource="{Binding Chats}">
            <ItemsControl.ItemTemplate>
              <DataTemplate x:DataType="gui:ChatItem">
                <Border Classes="item" Classes.active="{Binding IsActive}">
                  <Grid ColumnDefinitions="*,Auto">
                    <Button Grid.ColumnSpan="2" Background="Transparent" BorderThickness="0" HorizontalAlignment="Stretch"
                            HorizontalContentAlignment="Left" Padding="12,8,40,8"
                            Command="{Binding $parent[ItemsControl].((gui:MainViewModel)DataContext).OpenCommand}" CommandParameter="{Binding}"
                            AutomationProperties.Name="{Binding Title, StringFormat='Apri chat: {0}'}">
                      <StackPanel>
                        <TextBlock Text="{Binding Title}" TextTrimming="CharacterEllipsis" FontSize="14" />
                        <TextBlock Text="{Binding When}" FontSize="12" Foreground="{DynamicResource FgMuted}" />
                      </StackPanel>
                    </Button>
                    <Button Grid.Column="1" Background="Transparent" BorderThickness="0" Width="32" Height="32" Margin="0,0,4,0"
                            VerticalAlignment="Center" Padding="0" HorizontalContentAlignment="Center"
                            Command="{Binding $parent[ItemsControl].((gui:MainViewModel)DataContext).DeleteCommand}" CommandParameter="{Binding}"
                            AutomationProperties.Name="Elimina chat">
                      <Viewbox Width="12" Height="12"><Path Data="M6 6L18 18M18 6L6 18" Stroke="{DynamicResource FgMuted}" StrokeThickness="2.4" StrokeLineCap="Round" /></Viewbox>
                    </Button>
                  </Grid>
                </Border>
              </DataTemplate>
            </ItemsControl.ItemTemplate>
          </ItemsControl>
        </ScrollViewer>
      </DockPanel>
    </Border>

    <!-- Area principale -->
    <Grid Grid.Column="1" RowDefinitions="*,Auto">

      <ScrollViewer Grid.Row="0" x:Name="Scroll">
        <StackPanel MaxWidth="780" Margin="24,56,24,16" Spacing="20">

          <!-- Schermata iniziale -->
          <StackPanel IsVisible="{Binding ShowEmpty}" Spacing="10" Margin="0,40,0,0" HorizontalAlignment="Center">
            <Border Width="44" Height="44" CornerRadius="12" Background="{DynamicResource Accent}" HorizontalAlignment="Center">
              <Viewbox Width="24" Height="24">
                <Path Data="M12 2L14.4 8.6L21 11L14.4 13.4L12 20L9.6 13.4L3 11L9.6 8.6Z" Fill="{DynamicResource OnAccent}" />
              </Viewbox>
            </Border>
            <TextBlock Text="Come posso aiutarti?" FontSize="28" FontWeight="SemiBold" HorizontalAlignment="Center" />
            <TextBlock Text="Scrivi un messaggio per iniziare." Foreground="{DynamicResource FgMuted}" HorizontalAlignment="Center" />
          </StackPanel>

          <!-- Conversazione -->
          <ItemsControl ItemsSource="{Binding Messages}" AutomationProperties.Name="Conversazione">
            <ItemsControl.ItemsPanel>
              <ItemsPanelTemplate><StackPanel Spacing="22" /></ItemsPanelTemplate>
            </ItemsControl.ItemsPanel>
            <ItemsControl.ItemTemplate>
              <DataTemplate x:DataType="gui:MessageVm">
                <Panel>
                  <Border IsVisible="{Binding IsUser}" HorizontalAlignment="Right" MaxWidth="620" CornerRadius="18,18,4,18"
                          Background="{DynamicResource AccentSoft}" Padding="16,10">
                    <SelectableTextBlock Text="{Binding Text}" TextWrapping="Wrap" />
                  </Border>
                  <StackPanel IsVisible="{Binding IsAi}" Spacing="6">
                    <TextBlock Text="{Binding Author}" FontWeight="SemiBold" FontSize="13.5" Foreground="{DynamicResource Accent}" />
                    <gui:MarkdownView Source="{Binding Text}" />
                    <Button Classes="ghost" HorizontalAlignment="Left" MinHeight="30" Padding="10,0" FontSize="13" Content="Copia"
                            Command="{Binding $parent[ItemsControl].((gui:MainViewModel)DataContext).CopyCommand}" CommandParameter="{Binding Text}"
                            AutomationProperties.Name="Copia la risposta" />
                  </StackPanel>
                  <SelectableTextBlock IsVisible="{Binding IsErr}" Text="{Binding Text}" TextWrapping="Wrap" Foreground="{DynamicResource Err}" />
                </Panel>
              </DataTemplate>
            </ItemsControl.ItemTemplate>
          </ItemsControl>

          <!-- Attesa -->
          <StackPanel IsVisible="{Binding IsBusy}" Orientation="Horizontal" Spacing="12">
            <ProgressBar IsIndeterminate="True" Width="80" Height="4" Foreground="{DynamicResource Accent}" VerticalAlignment="Center" />
            <TextBlock Text="{Binding BusyText}" Foreground="{DynamicResource FgMuted}" />
          </StackPanel>
        </StackPanel>
      </ScrollViewer>

      <Button Grid.Row="0" Classes="ghost" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="12" Padding="0" Width="36"
              HorizontalContentAlignment="Center" Command="{Binding ToggleSidebarCommand}" AutomationProperties.Name="Mostra o nascondi le chat">
        <Viewbox Width="16" Height="16"><Path Data="M4 6H20M4 12H20M4 18H20" Stroke="{DynamicResource Fg}" StrokeThickness="2" StrokeLineCap="Round" /></Viewbox>
      </Button>

      <!-- Impostazioni: modello ed effort -->
      <Button Grid.Row="0" Classes="ghost" HorizontalAlignment="Right" VerticalAlignment="Top" Margin="12" Padding="0" Width="36"
              HorizontalContentAlignment="Center" AutomationProperties.Name="Impostazioni" ToolTip.Tip="Impostazioni">
        <Button.Flyout>
          <Flyout Placement="BottomEdgeAlignedRight">
            <StackPanel Width="300" Spacing="6" Margin="4">
              <TextBlock Text="Impostazioni" FontWeight="SemiBold" Margin="0,0,0,6" />
              <TextBlock Text="CLI" FontSize="13" Foreground="{DynamicResource FgMuted}" />
              <ComboBox ItemsSource="{Binding EngineChoices}" SelectedItem="{Binding SelectedEngine}" IsEnabled="{Binding CanSwitchEngine}"
                        HorizontalAlignment="Stretch" AutomationProperties.Name="CLI (motore)">
                <ComboBox.Styles>
                  <Style Selector="ComboBoxItem" x:DataType="gui:EngineChoice">
                    <Setter Property="IsEnabled" Value="{Binding Installed}" />
                  </Style>
                </ComboBox.Styles>
                <ComboBox.ItemTemplate>
                  <DataTemplate x:DataType="gui:EngineChoice"><TextBlock Text="{Binding Label}" /></DataTemplate>
                </ComboBox.ItemTemplate>
              </ComboBox>
              <TextBlock Text="Modello" FontSize="13" Foreground="{DynamicResource FgMuted}" Margin="0,8,0,0" />
              <ComboBox ItemsSource="{Binding ModelChoices}" SelectedItem="{Binding SelectedModel}" HorizontalAlignment="Stretch"
                        AutomationProperties.Name="Modello">
                <ComboBox.ItemTemplate>
                  <DataTemplate x:DataType="core:ModelOption"><TextBlock Text="{Binding Label}" /></DataTemplate>
                </ComboBox.ItemTemplate>
              </ComboBox>
              <TextBox Text="{Binding CustomModel}" IsVisible="{Binding IsCustomModel}" PlaceholderText="es. claude-opus-5-5"
                       AutomationProperties.Name="ID modello personalizzato" />
              <TextBlock Text="Effort" FontSize="13" Foreground="{DynamicResource FgMuted}" Margin="0,8,0,0" />
              <ComboBox ItemsSource="{Binding EffortChoices}" SelectedItem="{Binding SelectedEffort}" HorizontalAlignment="Stretch"
                        AutomationProperties.Name="Effort di ragionamento" />
            </StackPanel>
          </Flyout>
        </Button.Flyout>
        <Viewbox Width="16" Height="16">
          <Path Data="M4 7H11M17 7H20M4 17H7M13 17H20 M11 7A3 3 0 1 0 17 7A3 3 0 1 0 11 7Z M7 17A3 3 0 1 0 13 17A3 3 0 1 0 7 17Z"
                Stroke="{DynamicResource Fg}" StrokeThickness="2" StrokeLineCap="Round" />
        </Viewbox>
      </Button>

      <!-- Composer -->
      <StackPanel Grid.Row="1" MaxWidth="780" Margin="24,0,24,12">
        <Border Classes="composer" Background="{DynamicResource Surface}" BorderBrush="{DynamicResource Border}" BorderThickness="1" CornerRadius="20" Padding="14,10">
          <Grid ColumnDefinitions="*,Auto">
            <TextBox x:Name="InputBox" Classes="bare" Text="{Binding Input, Mode=TwoWay}" AcceptsReturn="True" TextWrapping="Wrap" MaxHeight="200"
                     PlaceholderText="{Binding InputPlaceholder}" BorderThickness="0" Background="Transparent"
                     VerticalContentAlignment="Center" AutomationProperties.Name="Messaggio" />
            <Button Grid.Column="1" Classes="send" VerticalAlignment="Bottom" Margin="8,0,0,0" Command="{Binding SendCommand}" AutomationProperties.Name="Invia messaggio">
              <Viewbox Width="18" Height="18"><Path Data="M12 19V5M5 12L12 5L19 12" Stroke="{Binding $parent[Button].Foreground}" StrokeThickness="2.2" StrokeLineCap="Round" StrokeJoin="Round" /></Viewbox>
            </Button>
          </Grid>
        </Border>
        <TextBlock Text="Invio per inviare · Maiusc+Invio per andare a capo" FontSize="12" Foreground="{DynamicResource FgMuted}"
                   HorizontalAlignment="Center" Margin="0,8,0,0" />
      </StackPanel>
    </Grid>
  </Grid>
</Window>