New AI actions panel. Replaced new command bar.

Directory.Packages.props

@@ -33,7 +33,7 @@
     <PackageVersion Include="Microsoft.Identity.Client.Extensions.Msal" Version="4.82.1" />
     <PackageVersion Include="Microsoft.NETCore.UniversalWindowsPlatform" Version="6.2.14" />
     <PackageVersion Include="Microsoft.Xaml.Behaviors.WinUI.Managed" Version="3.0.1" />
-    <PackageVersion Include="Wino.Mail.Contracts" Version="1.0.13" />
+    <PackageVersion Include="Wino.Mail.Contracts" Version="1.0.14" />
     <PackageVersion Include="MimeKit" Version="4.15.1" />
     <PackageVersion Include="morelinq" Version="4.4.0" />
     <PackageVersion Include="Nito.AsyncEx" Version="5.1.2" />

Wino.Core.Domain/Interfaces/IMenuOperation.cs

@@ -4,4 +4,5 @@ public interface IMenuOperation
 {
     bool IsEnabled { get; }
     string Identifier { get; }
+    bool IsSecondaryMenuPreferred { get; }
 }

Wino.Core.Domain/Interfaces/IMimeFileService.cs

@@ -69,6 +69,16 @@ public interface IMimeFileService
     /// </summary>
     Task SaveTranslatedHtmlAsync(Guid accountId, Guid fileId, string targetLanguage, string html, CancellationToken cancellationToken = default);
 
+    /// <summary>
+    /// Returns cached summary text for the given mime resource if it exists.
+    /// </summary>
+    Task<string> GetSummaryTextAsync(Guid accountId, Guid fileId, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Saves summary text for the given mime resource.
+    /// </summary>
+    Task SaveSummaryTextAsync(Guid accountId, Guid fileId, string summary, CancellationToken cancellationToken = default);
+
     /// <summary>
     /// Prepares the final model containing rendering details.
     /// </summary>

Wino.Core.Domain/Models/Folders/FolderOperationMenuItem.cs

@@ -1,13 +1,15 @@
-using Wino.Core.Domain.Enums;
+using Wino.Core.Domain.Enums;
-using Wino.Core.Domain.Interfaces;
 using Wino.Core.Domain.Models.Menus;
 
 namespace Wino.Core.Domain.Models.Folders;
 
-public class FolderOperationMenuItem : MenuOperationItemBase<FolderOperation>, IMenuOperation
+public class FolderOperationMenuItem : MenuOperationItemBase<FolderOperation>
 {
-    protected FolderOperationMenuItem(FolderOperation operation, bool isEnabled) : base(operation, isEnabled) { }
+    protected FolderOperationMenuItem(FolderOperation operation, bool isEnabled, bool isSecondaryMenuItem = false) : base(operation, isEnabled)
-
+    {
-    public static FolderOperationMenuItem Create(FolderOperation operation, bool isEnabled = true)
+        IsSecondaryMenuPreferred = isSecondaryMenuItem;
-        => new FolderOperationMenuItem(operation, isEnabled);
+    }
+
+    public static FolderOperationMenuItem Create(FolderOperation operation, bool isEnabled = true, bool isSecondaryMenuItem = false)
+        => new FolderOperationMenuItem(operation, isEnabled, isSecondaryMenuItem);
 }

Wino.Core.Domain/Models/Menus/MailOperationMenuItem.cs

@@ -1,15 +1,9 @@
-using Wino.Core.Domain.Enums;
+using Wino.Core.Domain.Enums;
-using Wino.Core.Domain.Interfaces;
 
 namespace Wino.Core.Domain.Models.Menus;
 
-public class MailOperationMenuItem : MenuOperationItemBase<MailOperation>, IMenuOperation
+public class MailOperationMenuItem : MenuOperationItemBase<MailOperation>
 {
-    /// <summary>
-    /// Gets or sets whether this menu item should be placed in SecondaryCommands if used in CommandBar.
-    /// </summary>
-    public bool IsSecondaryMenuPreferred { get; set; }
-
     protected MailOperationMenuItem(MailOperation operation, bool isEnabled, bool isSecondaryMenuItem = false) : base(operation, isEnabled)
     {
         IsSecondaryMenuPreferred = isSecondaryMenuItem;

Wino.Core.Domain/Models/Menus/MenuOperationItemBase.cs

@@ -1,9 +1,16 @@
-using System;
+using System;
+using CommunityToolkit.Mvvm.ComponentModel;
+using Wino.Core.Domain.Interfaces;
 
 namespace Wino.Core.Domain.Models.Menus;
 
-public class MenuOperationItemBase<TOperation> where TOperation : Enum
+public class MenuOperationItemBase<TOperation> : ObservableObject, IMenuOperation where TOperation : Enum
 {
+    private TOperation _operation;
+    private string _identifier = string.Empty;
+    private bool _isEnabled;
+    private bool _isSecondaryMenuPreferred;
+
     public MenuOperationItemBase(TOperation operation, bool isEnabled)
     {
         Operation = operation;
@@ -11,7 +18,33 @@ public class MenuOperationItemBase<TOperation> where TOperation : Enum
         Identifier = operation.ToString();
     }
 
-    public TOperation Operation { get; set; }
+    public TOperation Operation
-    public string Identifier { get; set; }
+    {
-    public bool IsEnabled { get; set; }
+        get => _operation;
+        set
+        {
+            if (SetProperty(ref _operation, value))
+            {
+                Identifier = value.ToString();
+            }
+        }
+    }
+
+    public string Identifier
+    {
+        get => _identifier;
+        protected set => SetProperty(ref _identifier, value);
+    }
+
+    public bool IsEnabled
+    {
+        get => _isEnabled;
+        set => SetProperty(ref _isEnabled, value);
+    }
+
+    public bool IsSecondaryMenuPreferred
+    {
+        get => _isSecondaryMenuPreferred;
+        set => SetProperty(ref _isSecondaryMenuPreferred, value);
+    }
 }

Wino.Core.Domain/Translations/en_US/resources.json

@@ -1062,6 +1062,7 @@
     "Composer_SmimeEncryption": "S/MIME Encryption",
     "Composer_EmailTemplatesPlaceholder": "E-mail templates",
     "Composer_AiSummarize": "Summarize with AI",
+    "Composer_AiSummarizeDescription": "Extract key points, action items, and decisions from this email.",
     "Composer_AiTranslate": "Translate with AI",
     "Composer_AiActions": "AI Actions",
     "Composer_AiRewrite": "Rewrite with AI",

Wino.Mail.ViewModels/MailListPageViewModel.cs

@@ -60,7 +60,7 @@ public partial class MailListPageViewModel : MailBaseViewModel,
 
     public WinoMailCollection MailCollection { get; set; } = new WinoMailCollection();
     public ObservableCollection<FolderPivotViewModel> PivotFolders { get; set; } = [];
-    public ObservableCollection<MailOperationMenuItem> ActionItems { get; set; } = [];
+    public ObservableCollection<IMenuOperation> ActionItems { get; set; } = [];
 
     private readonly SemaphoreSlim listManipulationSemepahore = new SemaphoreSlim(1);
     private CancellationTokenSource listManipulationCancellationTokenSource = new CancellationTokenSource();
@@ -439,11 +439,11 @@ public partial class MailListPageViewModel : MailBaseViewModel,
     public Task ExecuteHoverAction(MailOperationPreperationRequest request) => ExecuteMailOperationAsync(request);
 
     [RelayCommand]
-    private async Task ExecuteTopBarAction(MailOperationMenuItem menuItem)
+    private async Task ExecuteTopBarAction(IMenuOperation menuItem)
     {
-        if (menuItem == null || MailCollection.SelectedItemsCount == 0) return;
+        if (menuItem is not MailOperationMenuItem mailOperationMenuItem || MailCollection.SelectedItemsCount == 0) return;
 
-        await HandleMailOperation(menuItem.Operation, MailCollection.SelectedItems);
+        await HandleMailOperation(mailOperationMenuItem.Operation, MailCollection.SelectedItems);
     }
 
     /// <summary>

Wino.Mail.ViewModels/MailRenderingPageViewModel.cs

@@ -133,7 +133,7 @@ public partial class MailRenderingPageViewModel : MailBaseViewModel,
     public ObservableCollection<AccountContactViewModel> CcItems { get; set; } = [];
     public ObservableCollection<AccountContactViewModel> BccItems { get; set; } = [];
     public ObservableCollection<MailAttachmentViewModel> Attachments { get; set; } = [];
-    public ObservableCollection<MailOperationMenuItem> MenuItems { get; set; } = [];
+    public ObservableCollection<IMenuOperation> MenuItems { get; set; } = [];
 
     #endregion
 
@@ -255,21 +255,18 @@ public partial class MailRenderingPageViewModel : MailBaseViewModel,
     }
 
     [RelayCommand]
-    private async Task OperationClicked(MailOperationMenuItem menuItem)
+    private async Task OperationClicked(IMenuOperation menuItem)
     {
-        if (menuItem == null) return;
+        if (menuItem is not MailOperationMenuItem mailOperationMenuItem) return;
 
-        await HandleMailOperationAsync(menuItem.Operation);
+        await HandleMailOperationAsync(mailOperationMenuItem.Operation);
     }
 
     private async Task HandleMailOperationAsync(MailOperation operation)
     {
         try
         {
-            // Toggle theme
+            if (operation == MailOperation.SaveAs)
-            if (operation == MailOperation.DarkEditor || operation == MailOperation.LightEditor)
-                IsDarkWebviewRenderer = !IsDarkWebviewRenderer;
-            else if (operation == MailOperation.SaveAs)
             {
                 await SaveAsAsync();
             }
@@ -589,12 +586,6 @@ public partial class MailRenderingPageViewModel : MailBaseViewModel,
     {
         MenuItems.Clear();
 
-        // Add light/dark editor theme switch.
-        if (IsDarkWebviewRenderer)
-            MenuItems.Add(MailOperationMenuItem.Create(MailOperation.LightEditor));
-        else
-            MenuItems.Add(MailOperationMenuItem.Create(MailOperation.DarkEditor));
-
         // Save As PDF
         MenuItems.Add(MailOperationMenuItem.Create(MailOperation.SaveAs, true, true));
 

Wino.Mail.WinUI/App.xaml

@@ -19,6 +19,7 @@
                 <ResourceDictionary Source="/Styles/WinoInfoBar.xaml" />
                 <ResourceDictionary Source="/Styles/SharedStyles.xaml" />
                 <ResourceDictionary Source="/Styles/IconTemplates.xaml" />
+                <ResourceDictionary Source="/Styles/OperationCommandBar.xaml" />
 
 
                 <coreStyles:CustomMessageDialogStyles />

Wino.Mail.WinUI/Behaviors/BindableCommandBarBehavior.cs

@@ -1,208 +0,0 @@
-using System;
-using System.Collections;
-using System.Collections.Specialized;
-using System.Windows.Input;
-using CommunityToolkit.WinUI;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.UI.Xaml;
-using Microsoft.UI.Xaml.Controls;
-using Microsoft.UI.Xaml.Controls.Primitives;
-using Microsoft.Xaml.Interactivity;
-using Wino.Core.Domain.Interfaces;
-using Wino.Core.Domain.Models.Menus;
-using Wino.Helpers;
-using Wino.Mail.WinUI;
-using Wino.Mail.WinUI.Controls;
-
-namespace Wino.Behaviors;
-
-public partial class BindableCommandBarBehavior : Behavior<CommandBar>
-{
-    private readonly IPreferencesService? _preferencesService = App.Current.Services.GetService<IPreferencesService>();
-    public static readonly DependencyProperty PrimaryCommandsProperty = DependencyProperty.Register(
-        "PrimaryCommands", typeof(object), typeof(BindableCommandBarBehavior),
-        new PropertyMetadata(null, UpdateCommands));
-
-    [GeneratedDependencyProperty]
-    public partial ICommand? ItemClickedCommand { get; set; }
-
-    public object PrimaryCommands
-    {
-        get { return GetValue(PrimaryCommandsProperty); }
-        set { SetValue(PrimaryCommandsProperty, value); }
-    }
-
-    protected override void OnDetaching()
-    {
-        base.OnDetaching();
-
-        AttachChanges(false);
-
-        if (PrimaryCommands is IEnumerable enumerable)
-        {
-            foreach (var item in enumerable)
-            {
-                DetachCommandElement(item);
-            }
-        }
-    }
-
-    private void DetachCommandElement(object item)
-    {
-        if (item is ButtonBase button)
-        {
-            button.Click -= Button_Click;
-            return;
-        }
-
-        if (item is AppBarElementContainer container && container.Content is IDisposable disposable)
-        {
-            disposable.Dispose();
-        }
-    }
-
-    private void UpdatePrimaryCommands()
-    {
-        if (AssociatedObject == null)
-            return;
-
-        if (PrimaryCommands == null)
-            return;
-
-        if (AssociatedObject.PrimaryCommands is IEnumerable enumerableObjects)
-        {
-            foreach (var item in enumerableObjects)
-            {
-                DetachCommandElement(item);
-            }
-        }
-
-        if (AssociatedObject.SecondaryCommands is IEnumerable secondaryObject)
-        {
-            foreach (var item in secondaryObject)
-            {
-                DetachCommandElement(item);
-            }
-        }
-
-        AssociatedObject.PrimaryCommands.Clear();
-        AssociatedObject.SecondaryCommands.Clear();
-
-        if (PrimaryCommands is not IEnumerable enumerable) return;
-
-        foreach (var command in enumerable)
-        {
-            if (command is MailOperationMenuItem mailOperationMenuItem)
-            {
-                ICommandBarElement? menuItem = null;
-
-                if (mailOperationMenuItem.Operation == Core.Domain.Enums.MailOperation.Seperator)
-                {
-                    menuItem = new AppBarSeparator();
-                }
-                else
-                {
-                    var label = XamlHelpers.GetOperationString(mailOperationMenuItem.Operation);
-                    var labelPosition = string.IsNullOrWhiteSpace(label) || _preferencesService == null || !_preferencesService.IsShowActionLabelsEnabled ?
-                        CommandBarLabelPosition.Collapsed : CommandBarLabelPosition.Default;
-
-                    var iconGlyph = XamlHelpers.GetWinoIconGlyph(mailOperationMenuItem.Operation);
-                    var glyphValue = ControlConstants.WinoIconFontDictionary.TryGetValue(iconGlyph, out var glyph) ? glyph : string.Empty;
-
-                    menuItem = new AppBarButton
-                    {
-                        Width = double.NaN,
-                        MinWidth = 40,
-                        Icon = new WinoFontIcon() { Glyph = glyphValue },
-                        Label = label,
-                        LabelPosition = labelPosition,
-                        DataContext = mailOperationMenuItem,
-                    };
-
-                    if (!string.IsNullOrWhiteSpace(label))
-                    {
-                        var toolTip = new ToolTip
-                        {
-                            Content = label
-                        };
-                        ToolTipService.SetToolTip((DependencyObject)menuItem, toolTip);
-                    }
-
-                    ((AppBarButton)menuItem).Click -= Button_Click;
-                    ((AppBarButton)menuItem).Click += Button_Click;
-                }
-
-                if (mailOperationMenuItem.IsSecondaryMenuPreferred)
-                {
-                    AssociatedObject.SecondaryCommands.Add(menuItem);
-                }
-                else
-                {
-                    AssociatedObject.PrimaryCommands.Add(menuItem);
-                }
-            }
-            //if (dependencyObject is ICommandBarElement icommandBarElement)
-            //{
-            //    if (dependencyObject is ButtonBase button)
-            //    {
-            //        button.Click -= Button_Click;
-            //        button.Click += Button_Click;
-            //    }
-
-            //    if (command is MailOperationMenuItem mailOperationMenuItem)
-            //    {
-
-            //    }
-            //}
-        }
-    }
-
-    private void Button_Click(object sender, RoutedEventArgs e)
-    {
-        ItemClickedCommand?.Execute(((ButtonBase)sender).DataContext);
-    }
-
-    protected override void OnAttached()
-    {
-        base.OnAttached();
-
-        AttachChanges(true);
-
-        UpdatePrimaryCommands();
-    }
-
-    private void PrimaryCommandsCollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
-    {
-        UpdatePrimaryCommands();
-    }
-
-    private static void UpdateCommands(DependencyObject dependencyObject,
-        DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
-    {
-        if (dependencyObject is not BindableCommandBarBehavior behavior) return;
-
-        if (dependencyPropertyChangedEventArgs.OldValue is INotifyCollectionChanged oldList)
-        {
-            oldList.CollectionChanged -= behavior.PrimaryCommandsCollectionChanged;
-        }
-
-        behavior.AttachChanges(true);
-        behavior.UpdatePrimaryCommands();
-    }
-
-    private void AttachChanges(bool register)
-    {
-        if (PrimaryCommands is null) return;
-
-        if (PrimaryCommands is INotifyCollectionChanged collectionChanged)
-        {
-            if (register)
-            {
-                collectionChanged.CollectionChanged -= PrimaryCommandsCollectionChanged;
-                collectionChanged.CollectionChanged += PrimaryCommandsCollectionChanged;
-            }
-            else
-                collectionChanged.CollectionChanged -= PrimaryCommandsCollectionChanged;
-        }
-    }
-}

Wino.Mail.WinUI/Controls/AiActionsPanel.xaml

@@ -5,8 +5,8 @@
     xmlns:controls="using:CommunityToolkit.WinUI.Controls"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:domain="using:Wino.Core.Domain"
-    xmlns:models="using:Wino.Core.Domain.Models.Ai"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:models="using:Wino.Core.Domain.Models.Ai"
     x:Name="root"
     Loaded="OnLoaded"
     Unloaded="OnUnloaded"
@@ -20,11 +20,17 @@
         CornerRadius="10">
         <Grid>
             <StackPanel Spacing="14">
-                <ProgressBar x:Name="BusyProgressBar" IsIndeterminate="True" Visibility="Collapsed" />
+                <ProgressBar
+                    x:Name="BusyProgressBar"
+                    IsIndeterminate="True"
+                    Visibility="Collapsed" />
 
                 <StackPanel x:Name="LoadingPanel" Spacing="12">
                     <StackPanel Orientation="Horizontal" Spacing="10">
-                        <ProgressRing Width="20" Height="20" IsActive="True" />
+                        <ProgressRing
+                            Width="20"
+                            Height="20"
+                            IsActive="True" />
                         <TextBlock
                             VerticalAlignment="Center"
                             Style="{StaticResource BodyStrongTextBlockStyle}"
@@ -32,8 +38,14 @@
                     </StackPanel>
                 </StackPanel>
 
-                <StackPanel x:Name="SignedOutPanel" Spacing="14" Visibility="Collapsed">
+                <StackPanel
-                    <Border Height="120" Padding="18" CornerRadius="12">
+                    x:Name="SignedOutPanel"
+                    Spacing="14"
+                    Visibility="Collapsed">
+                    <Border
+                        Height="120"
+                        Padding="18"
+                        CornerRadius="12">
                         <Border.Background>
                             <LinearGradientBrush StartPoint="0,0" EndPoint="1,1">
                                 <GradientStop Offset="0" Color="#1A6EE7B7" />
@@ -47,7 +59,12 @@
                                 <ColumnDefinition Width="*" />
                             </Grid.ColumnDefinitions>
 
-                            <Border Width="56" Height="56" VerticalAlignment="Top" Background="#22FFFFFF" CornerRadius="28">
+                            <Border
+                                Width="56"
+                                Height="56"
+                                VerticalAlignment="Top"
+                                Background="#22FFFFFF"
+                                CornerRadius="28">
                                 <FontIcon
                                     HorizontalAlignment="Center"
                                     VerticalAlignment="Center"
@@ -87,22 +104,32 @@
                     </Grid>
                 </StackPanel>
 
-                <StackPanel x:Name="PurchasePanel" Spacing="14" Visibility="Collapsed">
+                <StackPanel
-                    <Border Padding="16" Background="{ThemeResource CardBackgroundFillColorTertiaryBrush}" CornerRadius="12">
+                    x:Name="PurchasePanel"
+                    Spacing="14"
+                    Visibility="Collapsed">
+                    <Border
+                        Padding="16"
+                        Background="{ThemeResource CardBackgroundFillColorTertiaryBrush}"
+                        CornerRadius="12">
                         <StackPanel Spacing="8">
-                            <TextBlock
+                            <TextBlock Style="{StaticResource BodyStrongTextBlockStyle}" Text="{x:Bind domain:Translator.AiActions_NoPackTitle, Mode=OneWay}" />
-                                Style="{StaticResource BodyStrongTextBlockStyle}"
-                                Text="{x:Bind domain:Translator.AiActions_NoPackTitle, Mode=OneWay}" />
                             <TextBlock
                                 Foreground="{ThemeResource TextFillColorSecondaryBrush}"
                                 Style="{StaticResource BodyTextBlockStyle}"
                                 Text="{x:Bind domain:Translator.AiActions_NoPackDescription, Mode=OneWay}"
                                 TextWrapping="WrapWholeWords" />
                             <StackPanel Orientation="Horizontal" Spacing="8">
-                                <Border Padding="8,2" Background="{ThemeResource AccentFillColorDefaultBrush}" CornerRadius="8">
+                                <Border
+                                    Padding="8,2"
+                                    Background="{ThemeResource AccentFillColorDefaultBrush}"
+                                    CornerRadius="8">
                                     <TextBlock Foreground="White" Text="{x:Bind domain:Translator.WinoAccount_Management_AiPackPromoPrice, Mode=OneWay}" />
                                 </Border>
-                                <Border Padding="8,2" Background="{ThemeResource CardBackgroundFillColorSecondaryBrush}" CornerRadius="8">
+                                <Border
+                                    Padding="8,2"
+                                    Background="{ThemeResource CardBackgroundFillColorSecondaryBrush}"
+                                    CornerRadius="8">
                                     <TextBlock Text="{x:Bind domain:Translator.WinoAccount_Management_AiPackPromoRequests, Mode=OneWay}" />
                                 </Border>
                             </StackPanel>
@@ -110,76 +137,96 @@
                     </Border>
 
                     <Button
+                        HorizontalAlignment="Left"
                         Click="PurchaseButton_Click"
                         Content="{x:Bind domain:Translator.WinoAccount_Management_AiPackGetButton, Mode=OneWay}"
-                        HorizontalAlignment="Left"
                         Style="{StaticResource AccentButtonStyle}" />
                 </StackPanel>
 
-                <StackPanel x:Name="ReadyPanel" Spacing="12" Visibility="Collapsed">
+                <StackPanel
-                    <Border Padding="12" Background="{ThemeResource CardBackgroundFillColorTertiaryBrush}" CornerRadius="10">
+                    x:Name="ReadyPanel"
-                        <Grid ColumnSpacing="10">
+                    Spacing="8"
+                    Visibility="Collapsed">
+                    <!--  Row 1: Action tabs + usage  -->
+                    <Grid ColumnSpacing="12">
                         <Grid.ColumnDefinitions>
                             <ColumnDefinition Width="Auto" />
                             <ColumnDefinition Width="*" />
+                            <ColumnDefinition Width="Auto" />
                         </Grid.ColumnDefinitions>
 
-                            <Border
+                        <controls:Segmented
-                                Width="36"
+                            x:Name="ActionSelector"
-                                Height="36"
+                            Height="30"
-                                Background="{ThemeResource AccentFillColorDefaultBrush}"
-                                CornerRadius="18"
-                                Opacity="0.18" />
-                            <FontIcon
-                                HorizontalAlignment="Center"
                             VerticalAlignment="Center"
-                                FontFamily="{StaticResource SymbolThemeFontFamily}"
+                            SelectionChanged="ActionSelector_SelectionChanged"
-                                Foreground="{ThemeResource AccentTextFillColorPrimaryBrush}"
+                            Style="{StaticResource ButtonSegmentedStyle}">
-                                Glyph="&#xE945;" />
+                            <controls:SegmentedItem
-
+                                x:Name="TranslateSegment"
-                            <StackPanel Grid.Column="1" Spacing="3">
+                                Padding="12,6"
-                                <TextBlock
+                                Content="{x:Bind domain:Translator.WinoAccount_Management_AiPackFeatureTranslate, Mode=OneWay}">
-                                    Style="{StaticResource BodyStrongTextBlockStyle}"
-                                    Text="{x:Bind domain:Translator.Composer_AiActions, Mode=OneWay}" />
-                                <TextBlock
-                                    x:Name="UsageSummaryTextBlock"
-                                    Foreground="{ThemeResource TextFillColorSecondaryBrush}"
-                                    Style="{StaticResource CaptionTextBlockStyle}"
-                                    TextWrapping="WrapWholeWords" />
-                                <TextBlock
-                                    x:Name="UsageResetTextBlock"
-                                    Foreground="{ThemeResource TextFillColorSecondaryBrush}"
-                                    Style="{StaticResource CaptionTextBlockStyle}"
-                                    TextWrapping="WrapWholeWords" />
-                            </StackPanel>
-                        </Grid>
-                    </Border>
-
-                    <controls:Segmented x:Name="ActionSelector" SelectionChanged="ActionSelector_SelectionChanged">
-                        <controls:SegmentedItem x:Name="TranslateSegment" Content="{x:Bind domain:Translator.WinoAccount_Management_AiPackFeatureTranslate, Mode=OneWay}">
                                 <controls:SegmentedItem.Icon>
                                     <SymbolIcon Symbol="Switch" />
                                 </controls:SegmentedItem.Icon>
                             </controls:SegmentedItem>
-                        <controls:SegmentedItem x:Name="RewriteSegment" Content="{x:Bind domain:Translator.WinoAccount_Management_AiPackFeatureRewrite, Mode=OneWay}">
+                            <controls:SegmentedItem
+                                x:Name="RewriteSegment"
+                                Padding="12,6"
+                                Content="{x:Bind domain:Translator.WinoAccount_Management_AiPackFeatureRewrite, Mode=OneWay}">
                                 <controls:SegmentedItem.Icon>
                                     <SymbolIcon Symbol="Edit" />
                                 </controls:SegmentedItem.Icon>
                             </controls:SegmentedItem>
-                        <controls:SegmentedItem x:Name="SummarizeSegment" Content="{x:Bind domain:Translator.WinoAccount_Management_AiPackFeatureSummarize, Mode=OneWay}">
+                            <controls:SegmentedItem
+                                x:Name="SummarizeSegment"
+                                Padding="12,6"
+                                Content="{x:Bind domain:Translator.WinoAccount_Management_AiPackFeatureSummarize, Mode=OneWay}">
                                 <controls:SegmentedItem.Icon>
                                     <SymbolIcon Symbol="Bullets" />
                                 </controls:SegmentedItem.Icon>
                             </controls:SegmentedItem>
                         </controls:Segmented>
 
-                    <StackPanel x:Name="TranslateOptionsPanel" Spacing="8" Visibility="Collapsed">
+                        <StackPanel
+                            Grid.Column="2"
+                            VerticalAlignment="Center"
+                            Orientation="Horizontal"
+                            Spacing="8">
+                            <ProgressBar
+                                x:Name="UsageProgressBar"
+                                Width="100"
+                                VerticalAlignment="Center"
+                                Maximum="1000"
+                                Value="0" />
                             <TextBlock
+                                x:Name="UsageSummaryTextBlock"
+                                VerticalAlignment="Center"
+                                Foreground="{ThemeResource TextFillColorSecondaryBrush}"
+                                Style="{StaticResource CaptionTextBlockStyle}" />
+                        </StackPanel>
+                    </Grid>
+
+                    <!--  Row 2: Action-specific options  -->
+                    <Grid ColumnSpacing="8">
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition Width="*" />
+                            <ColumnDefinition Width="Auto" />
+                        </Grid.ColumnDefinitions>
+
+                        <!--  Translate options  -->
+                        <StackPanel
+                            x:Name="TranslateOptionsPanel"
+                            Orientation="Horizontal"
+                            Spacing="8"
+                            Visibility="Collapsed">
+                            <TextBlock
+                                VerticalAlignment="Center"
+                                Foreground="{ThemeResource TextFillColorSecondaryBrush}"
                                 Style="{StaticResource CaptionTextBlockStyle}"
                                 Text="{x:Bind domain:Translator.Composer_AiTranslateLanguage, Mode=OneWay}" />
                             <ComboBox
                                 x:Name="TranslateLanguageComboBox"
-                            SelectedItem="{x:Bind SelectedTranslateLanguageOption, Mode=TwoWay}"
+                                MinWidth="120"
                                 SelectionChanged="TranslateLanguageComboBox_SelectionChanged">
                                 <ComboBox.ItemTemplate>
                                     <DataTemplate x:DataType="models:AiTranslateLanguageOption">
@@ -191,17 +238,23 @@
                                 x:Name="RunTranslateButton"
                                 Click="RunTranslateButton_Click"
                                 Content="{x:Bind domain:Translator.Composer_AiTranslateApply, Mode=OneWay}"
-                            HorizontalAlignment="Left"
                                 Style="{StaticResource AccentButtonStyle}" />
                         </StackPanel>
 
-                    <StackPanel x:Name="RewriteOptionsPanel" Spacing="8" Visibility="Collapsed">
+                        <!--  Rewrite options  -->
+                        <StackPanel
+                            x:Name="RewriteOptionsPanel"
+                            Spacing="8"
+                            Visibility="Collapsed">
+                            <StackPanel Orientation="Horizontal" Spacing="8">
                                 <TextBlock
+                                    VerticalAlignment="Center"
+                                    Foreground="{ThemeResource TextFillColorSecondaryBrush}"
                                     Style="{StaticResource CaptionTextBlockStyle}"
                                     Text="{x:Bind domain:Translator.Composer_AiRewriteMode, Mode=OneWay}" />
                                 <ComboBox
                                     x:Name="RewriteModeComboBox"
-                            SelectedItem="{x:Bind SelectedRewriteModeOption, Mode=TwoWay}"
+                                    MinWidth="140"
                                     SelectionChanged="RewriteModeComboBox_SelectionChanged">
                                     <ComboBox.ItemTemplate>
                                         <DataTemplate x:DataType="models:AiRewriteModeOption">
@@ -209,6 +262,12 @@
                                         </DataTemplate>
                                     </ComboBox.ItemTemplate>
                                 </ComboBox>
+                                <Button
+                                    x:Name="RunRewriteButton"
+                                    Click="RunRewriteButton_Click"
+                                    Content="{x:Bind domain:Translator.Composer_AiRewriteApply, Mode=OneWay}"
+                                    Style="{StaticResource AccentButtonStyle}" />
+                            </StackPanel>
                             <TextBlock
                                 x:Name="RewriteDescriptionTextBlock"
                                 Foreground="{ThemeResource TextFillColorSecondaryBrush}"
@@ -218,13 +277,38 @@
                                 x:Name="CustomRewriteTextBox"
                                 PlaceholderText="{x:Bind domain:Translator.Composer_AiRewriteCustomPlaceholder, Mode=OneWay}"
                                 Visibility="Collapsed" />
-                        <Button
-                            x:Name="RunRewriteButton"
-                            Click="RunRewriteButton_Click"
-                            Content="{x:Bind domain:Translator.Composer_AiRewriteApply, Mode=OneWay}"
-                            HorizontalAlignment="Left"
-                            Style="{StaticResource AccentButtonStyle}" />
                         </StackPanel>
+
+                        <!--  Summarize options  -->
+                        <StackPanel
+                            x:Name="SummarizeOptionsPanel"
+                            Spacing="8"
+                            Visibility="Collapsed">
+                            <TextBlock
+                                Foreground="{ThemeResource TextFillColorSecondaryBrush}"
+                                Style="{StaticResource CaptionTextBlockStyle}"
+                                Text="{x:Bind domain:Translator.Composer_AiSummarizeDescription, Mode=OneWay}" />
+                            <StackPanel Orientation="Horizontal" Spacing="4">
+                                <Button
+                                    x:Name="RunSummarizeButton"
+                                    HorizontalAlignment="Left"
+                                    Click="RunSummarizeButton_Click"
+                                    Content="{x:Bind domain:Translator.WinoAccount_Management_AiPackFeatureSummarize, Mode=OneWay}"
+                                    Style="{StaticResource AccentButtonStyle}" />
+                                <FontIcon
+                                    x:Name="SummarizeCachedIndicator"
+                                    HorizontalAlignment="Left"
+                                    VerticalAlignment="Center"
+                                    FontFamily="{StaticResource SymbolThemeFontFamily}"
+                                    FontSize="16"
+                                    Foreground="#2AA84A"
+                                    Glyph="&#xE73E;"
+                                    ToolTipService.ToolTip="{x:Bind domain:Translator.Composer_AiSummarize, Mode=OneWay}"
+                                    Visibility="Collapsed" />
+                            </StackPanel>
+                        </StackPanel>
+
+                    </Grid>
                 </StackPanel>
             </StackPanel>
         </Grid>

Wino.Mail.WinUI/Controls/AiActionsPanel.xaml.cs

@@ -1,11 +1,13 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
 using CommunityToolkit.WinUI;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
+using Microsoft.UI.Xaml.Media;
 using Wino.Core.Domain;
 using Wino.Core.Domain.Enums;
 using Wino.Core.Domain.Interfaces;
@@ -18,6 +20,7 @@ namespace Wino.Mail.WinUI.Controls;
 
 public sealed partial class AiActionsPanel : UserControl, IDisposable
 {
+    public event EventHandler? CloseRequested;
     private readonly IWinoAccountProfileService _profileService = App.Current.Services.GetRequiredService<IWinoAccountProfileService>();
     private readonly IStoreManagementService _storeManagementService = App.Current.Services.GetRequiredService<IStoreManagementService>();
     private readonly IMailDialogService _dialogService = App.Current.Services.GetRequiredService<IMailDialogService>();
@@ -27,6 +30,7 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
     private bool _isRefreshing;
     private bool _isBusy;
     private AiActionType _lastConfigurableAction = AiActionType.Translate;
+    private bool _hasCachedSummary;
     private CancellationTokenSource? _actionCancellationTokenSource;
     private IReadOnlyList<AiTranslateLanguageOption> _translateOptions = Array.Empty<AiTranslateLanguageOption>();
     private IReadOnlyList<AiRewriteModeOption> _rewriteOptions = Array.Empty<AiRewriteModeOption>();
@@ -66,6 +70,7 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
     {
         UpdateActionAvailability();
         ApplySelectedAction(SelectDefaultAction());
+        _ = RefreshCachedSummaryStateAsync();
     }
 
     private void OnLoaded(object sender, RoutedEventArgs e)
@@ -83,25 +88,44 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
 
     private void LoadOptions()
     {
+        // Save current selections before replacing ItemsSource (which clears SelectedItem).
+        var previousTranslateCode = SelectedTranslateLanguageOption?.Code;
+        var previousRewriteMode = SelectedRewriteModeOption?.Mode;
+
         _translateOptions = _optionsService.GetTranslateLanguageOptions();
         _rewriteOptions = _optionsService.GetRewriteModeOptions();
 
         TranslateLanguageComboBox.ItemsSource = _translateOptions;
         RewriteModeComboBox.ItemsSource = _rewriteOptions;
 
-        SelectedTranslateLanguageOption ??= _translateOptions.Count > 0 ? _translateOptions[0] : null;
+        // Restore selection by matching on value, falling back to first item.
-        SelectedRewriteModeOption ??= _rewriteOptions.Count > 0 ? _rewriteOptions[0] : null;
+        SelectedTranslateLanguageOption = FindOption(_translateOptions, o => o.Code == previousTranslateCode) ?? (_translateOptions.Count > 0 ? _translateOptions[0] : null);
+        SelectedRewriteModeOption = FindOption(_rewriteOptions, o => o.Mode == previousRewriteMode) ?? (_rewriteOptions.Count > 0 ? _rewriteOptions[0] : null);
 
         TranslateLanguageComboBox.SelectedItem = SelectedTranslateLanguageOption;
         RewriteModeComboBox.SelectedItem = SelectedRewriteModeOption;
         UpdateRewriteOptionState();
     }
 
+    private static T? FindOption<T>(IReadOnlyList<T> options, Func<T, bool> predicate) where T : class
+    {
+        foreach (var option in options)
+        {
+            if (predicate(option))
+            {
+                return option;
+            }
+        }
+
+        return null;
+    }
+
     private void UpdateActionAvailability()
     {
         TranslateSegment.Visibility = HasAction(AiActionType.Translate) ? Visibility.Visible : Visibility.Collapsed;
         RewriteSegment.Visibility = HasAction(AiActionType.Rewrite) ? Visibility.Visible : Visibility.Collapsed;
         SummarizeSegment.Visibility = HasAction(AiActionType.Summarize) ? Visibility.Visible : Visibility.Collapsed;
+        SummarizeCachedIndicator.Visibility = HasAction(AiActionType.Summarize) && _hasCachedSummary ? Visibility.Visible : Visibility.Collapsed;
     }
 
     private bool HasAction(AiActionType action) => (AvailableActions & action) == action;
@@ -143,6 +167,7 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
 
         TranslateOptionsPanel.Visibility = action == AiActionType.Translate ? Visibility.Visible : Visibility.Collapsed;
         RewriteOptionsPanel.Visibility = action == AiActionType.Rewrite ? Visibility.Visible : Visibility.Collapsed;
+        SummarizeOptionsPanel.Visibility = action == AiActionType.Summarize ? Visibility.Visible : Visibility.Collapsed;
     }
 
     public async Task RefreshAvailabilityAsync()
@@ -160,7 +185,7 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
             var account = await _profileService.GetAuthenticatedAccountAsync().ConfigureAwait(true);
             if (account == null)
             {
-                UpdateUsageSummary(string.Empty, string.Empty);
+                UpdateUsageSummary(string.Empty);
                 UpdatePanelState(showSignedOut: true);
                 return;
             }
@@ -168,7 +193,7 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
             var hasAiPack = await _storeManagementService.HasProductAsync(WinoAddOnProductType.AI_PACK).ConfigureAwait(true);
             if (!hasAiPack)
             {
-                UpdateUsageSummary(string.Empty, string.Empty);
+                UpdateUsageSummary(string.Empty);
                 UpdatePanelState(showPurchase: true);
                 return;
             }
@@ -176,13 +201,17 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
             var aiStatusResponse = await _profileService.GetAiStatusAsync().ConfigureAwait(true);
             if (aiStatusResponse.IsSuccess && aiStatusResponse.Result != null)
             {
-                UpdateUsageSummary(CreateUsageSummary(aiStatusResponse.Result), CreateUsageResetText(aiStatusResponse.Result));
+                UpdateUsageSummary(
+                    CreateUsageSummary(aiStatusResponse.Result),
+                    GetUsedCount(aiStatusResponse.Result),
+                    GetUsageLimit(aiStatusResponse.Result));
             }
             else
             {
-                UpdateUsageSummary(Translator.WinoAccount_Management_AiPackUsageLoadFailed, string.Empty);
+                UpdateUsageSummary(Translator.WinoAccount_Management_AiPackUsageLoadFailed);
             }
 
+            await RefreshCachedSummaryStateAsync().ConfigureAwait(true);
             ApplySelectedAction(SelectDefaultAction());
             UpdatePanelState(showReady: true);
         }
@@ -191,7 +220,7 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
         }
         catch (Exception)
         {
-            UpdateUsageSummary(Translator.WinoAccount_Management_AiPackUsageLoadFailed, string.Empty);
+            UpdateUsageSummary(Translator.WinoAccount_Management_AiPackUsageLoadFailed);
             UpdatePanelState(showReady: true);
         }
         finally
@@ -211,13 +240,29 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
         return Translator.WinoAccount_Management_AiPackUsageLoadFailed;
     }
 
-    private static string CreateUsageResetText(AiStatusResultDto aiStatus)
+    private static int GetUsedCount(AiStatusResultDto aiStatus)
+        => aiStatus.Used is int used ? used : 0;
+
+    private static string CreateUsageSummary(QuotaInfoDto quotaInfo)
     {
-        return aiStatus.CurrentPeriodEndUtc is DateTimeOffset resetDateUtc
+        if (quotaInfo.Used is int used && quotaInfo.MonthlyLimit is int limit && limit > 0)
-            ? string.Format(Translator.WinoAccount_Management_AiPackResets, resetDateUtc.LocalDateTime)
+        {
-            : string.Empty;
+            return string.Format(Translator.AiActions_UsageSummary, used, limit);
         }
 
+        return Translator.WinoAccount_Management_AiPackUsageLoadFailed;
+    }
+
+    private static int GetUsedCount(QuotaInfoDto quotaInfo)
+        => quotaInfo.Used is int used ? used : 0;
+
+    private static int GetUsageLimit(QuotaInfoDto quotaInfo)
+        => quotaInfo.MonthlyLimit is int limit && limit > 0 ? limit : 1000;
+
+    private static int GetUsageLimit(AiStatusResultDto aiStatus)
+        => aiStatus.MonthlyLimit is int limit && limit > 0 ? limit : 1000;
+
+
     private void UpdatePanelState(bool showLoading = false, bool showSignedOut = false, bool showPurchase = false, bool showReady = false)
     {
         LoadingPanel.Visibility = showLoading ? Visibility.Visible : Visibility.Collapsed;
@@ -226,11 +271,19 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
         ReadyPanel.Visibility = showReady ? Visibility.Visible : Visibility.Collapsed;
     }
 
-    private void UpdateUsageSummary(string usageText, string resetText)
+    private void UpdateUsageSummary(string usageText, int usedCount = 0)
     {
         UsageSummaryTextBlock.Text = usageText;
-        UsageResetTextBlock.Text = resetText;
+        UsageProgressBar.Maximum = 1000;
-        UsageResetTextBlock.Visibility = string.IsNullOrWhiteSpace(resetText) ? Visibility.Collapsed : Visibility.Visible;
+        UsageProgressBar.Value = Math.Min(usedCount, 1000);
+    }
+
+    private void UpdateUsageSummary(string usageText, int usedCount, int usageLimit)
+    {
+        var normalizedLimit = usageLimit > 0 ? usageLimit : 1000;
+        UsageSummaryTextBlock.Text = usageText;
+        UsageProgressBar.Maximum = normalizedLimit;
+        UsageProgressBar.Value = Math.Min(usedCount, normalizedLimit);
     }
 
     private void SetBusyUi(bool isBusy, bool showLoading)
@@ -244,6 +297,7 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
         CustomRewriteTextBox.IsEnabled = !isBusy;
         RunTranslateButton.IsEnabled = !isBusy;
         RunRewriteButton.IsEnabled = !isBusy;
+        RunSummarizeButton.IsEnabled = !isBusy;
         SignedOutPanel.IsHitTestVisible = !isBusy;
         PurchasePanel.IsHitTestVisible = !isBusy;
 
@@ -363,7 +417,7 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
         if (ReferenceEquals(ActionSelector.SelectedItem, SummarizeSegment))
         {
             ApplySelectedAction(AiActionType.Summarize);
-            _ = ExecuteAiActionAsync(AiActionType.Summarize);
+            _ = RefreshCachedSummaryStateAsync();
         }
     }
 
@@ -402,6 +456,17 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
         await ExecuteAiActionAsync(AiActionType.Rewrite);
     }
 
+    private async void RunSummarizeButton_Click(object sender, RoutedEventArgs e)
+    {
+        await ExecuteAiActionAsync(AiActionType.Summarize);
+    }
+
+    private void CloseButton_Click(object sender, RoutedEventArgs e)
+    {
+        CancelPendingOperation();
+        CloseRequested?.Invoke(this, EventArgs.Empty);
+    }
+
     private async Task ExecuteAiActionAsync(AiActionType action)
     {
         if (_isBusy)
@@ -423,15 +488,6 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
 
         try
         {
-            var html = await HtmlHost.GetCurrentHtmlAsync(cancellationToken).ConfigureAwait(true);
-            cancellationToken.ThrowIfCancellationRequested();
-
-            if (string.IsNullOrWhiteSpace(html))
-            {
-                _dialogService.InfoBarMessage(Translator.Composer_AiErrorTitle, Translator.WinoAccount_Error_AiHtmlEmpty, InfoBarMessageType.Error);
-                return;
-            }
-
             if (action == AiActionType.Translate && SelectedTranslateLanguageOption == null)
             {
                 _dialogService.InfoBarMessage(Translator.Composer_AiErrorTitle, Translator.WinoAccount_Error_ValidationFailed, InfoBarMessageType.Error);
@@ -444,6 +500,41 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
                 return;
             }
 
+            if (action == AiActionType.Translate)
+            {
+                var cachedTranslation = await HtmlHost.TryGetCachedTranslationHtmlAsync(SelectedTranslateLanguageOption?.Code ?? string.Empty, cancellationToken).ConfigureAwait(true);
+                cancellationToken.ThrowIfCancellationRequested();
+
+                if (!string.IsNullOrWhiteSpace(cachedTranslation))
+                {
+                    await HtmlHost.ApplyHtmlResultAsync(cachedTranslation, cancellationToken).ConfigureAwait(true);
+                    return;
+                }
+            }
+
+            if (action == AiActionType.Summarize)
+            {
+                var cachedSummary = await HtmlHost.TryGetCachedSummaryTextAsync(cancellationToken).ConfigureAwait(true);
+                cancellationToken.ThrowIfCancellationRequested();
+
+                if (!string.IsNullOrWhiteSpace(cachedSummary))
+                {
+                    _hasCachedSummary = true;
+                    UpdateActionAvailability();
+                    await ShowSummaryDialogAsync(cachedSummary).ConfigureAwait(true);
+                    return;
+                }
+            }
+
+            var html = await HtmlHost.GetCurrentHtmlAsync(cancellationToken).ConfigureAwait(true);
+            cancellationToken.ThrowIfCancellationRequested();
+
+            if (string.IsNullOrWhiteSpace(html))
+            {
+                _dialogService.InfoBarMessage(Translator.Composer_AiErrorTitle, Translator.WinoAccount_Error_AiHtmlEmpty, InfoBarMessageType.Error);
+                return;
+            }
+
             var response = action switch
             {
                 AiActionType.Translate => await _profileService.TranslateAsync(html, SelectedTranslateLanguageOption?.Code ?? string.Empty, cancellationToken).ConfigureAwait(true),
@@ -460,6 +551,37 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
                 return;
             }
 
+            if (response.Quota != null)
+            {
+                UpdateUsageSummary(
+                    CreateUsageSummary(response.Quota),
+                    GetUsedCount(response.Quota),
+                    GetUsageLimit(response.Quota));
+            }
+
+            if (action == AiActionType.Translate)
+            {
+                await HtmlHost.SaveCachedTranslationHtmlAsync(SelectedTranslateLanguageOption?.Code ?? string.Empty, response.Result.Html, cancellationToken).ConfigureAwait(true);
+                cancellationToken.ThrowIfCancellationRequested();
+                await HtmlHost.ApplyHtmlResultAsync(response.Result.Html, cancellationToken).ConfigureAwait(true);
+                return;
+            }
+
+            if (action == AiActionType.Summarize)
+            {
+                await HtmlHost.SaveCachedSummaryTextAsync(response.Result.Html, cancellationToken).ConfigureAwait(true);
+                cancellationToken.ThrowIfCancellationRequested();
+
+                _hasCachedSummary = true;
+                UpdateActionAvailability();
+
+                var savedSummary = await HtmlHost.TryGetCachedSummaryTextAsync(cancellationToken).ConfigureAwait(true);
+                cancellationToken.ThrowIfCancellationRequested();
+
+                await ShowSummaryDialogAsync(string.IsNullOrWhiteSpace(savedSummary) ? response.Result.Html : savedSummary).ConfigureAwait(true);
+                return;
+            }
+
             await HtmlHost.ApplyHtmlResultAsync(response.Result.Html, cancellationToken).ConfigureAwait(true);
         }
         catch (OperationCanceledException)
@@ -479,14 +601,7 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
                 _actionCancellationTokenSource = null;
             }
 
-            if (action == AiActionType.Summarize)
+            // Summarize no longer auto-switches back; the user explicitly selected the tab.
-            {
-                var fallbackAction = _lastConfigurableAction != AiActionType.None && HasAction(_lastConfigurableAction)
-                    ? _lastConfigurableAction
-                    : SelectDefaultAction();
-
-                ApplySelectedAction(fallbackAction);
-            }
         }
     }
 
@@ -505,6 +620,94 @@ public sealed partial class AiActionsPanel : UserControl, IDisposable
         return CustomRewriteTextBox.Text?.Trim() ?? string.Empty;
     }
 
+    private async Task RefreshCachedSummaryStateAsync()
+    {
+        if (HtmlHost == null || !HasAction(AiActionType.Summarize))
+        {
+            _hasCachedSummary = false;
+            UpdateActionAvailability();
+            return;
+        }
+
+        try
+        {
+            var cachedSummary = await HtmlHost.TryGetCachedSummaryTextAsync(CancellationToken.None).ConfigureAwait(true);
+            _hasCachedSummary = !string.IsNullOrWhiteSpace(cachedSummary);
+        }
+        catch (Exception)
+        {
+            _hasCachedSummary = false;
+        }
+
+        UpdateActionAvailability();
+    }
+
+    private async Task ShowSummaryDialogAsync(string summary)
+    {
+        if (HtmlHost == null)
+        {
+            await _dialogService.ShowMessageAsync(summary, Translator.Composer_AiSummarize, WinoCustomMessageDialogIcon.Information);
+            return;
+        }
+
+        var summaryTextBox = new TextBox
+        {
+            Text = summary,
+            IsReadOnly = true,
+            AcceptsReturn = true,
+            TextWrapping = TextWrapping.Wrap,
+            MinHeight = 240,
+            MaxHeight = 420,
+            BorderThickness = new Thickness(0),
+            Background = new SolidColorBrush(Windows.UI.Color.FromArgb(0, 0, 0, 0))
+        };
+
+        var dialog = new ContentDialog
+        {
+            XamlRoot = XamlRoot,
+            RequestedTheme = ActualTheme,
+            Title = Translator.Composer_AiSummarize,
+            PrimaryButtonText = Translator.Buttons_Save,
+            SecondaryButtonText = Translator.Buttons_Close,
+            DefaultButton = ContentDialogButton.Secondary,
+            Content = new ScrollViewer
+            {
+                Content = summaryTextBox,
+                VerticalScrollBarVisibility = ScrollBarVisibility.Auto,
+                HorizontalScrollBarVisibility = ScrollBarVisibility.Disabled
+            }
+        };
+
+        dialog.PrimaryButtonClick += async (sender, args) =>
+        {
+            var deferral = args.GetDeferral();
+
+            try
+            {
+                var path = await _dialogService.PickFilePathAsync(HtmlHost.GetSuggestedSummaryFileName());
+                if (string.IsNullOrWhiteSpace(path))
+                {
+                    args.Cancel = true;
+                    return;
+                }
+
+                await File.WriteAllTextAsync(path, summary);
+                _dialogService.InfoBarMessage(Translator.GeneralTitle_Info, string.Format(Translator.ClipboardTextCopied_Message, Path.GetFileName(path)), InfoBarMessageType.Success);
+            }
+            catch (Exception ex)
+            {
+                args.Cancel = true;
+                _dialogService.InfoBarMessage(Translator.GeneralTitle_Error, ex.Message, InfoBarMessageType.Error);
+            }
+            finally
+            {
+                deferral.Complete();
+            }
+        };
+
+        await dialog.ShowAsync();
+    }
+
     private void CancelAndDisposeActionCancellationToken()
     {
         if (_actionCancellationTokenSource == null)

Wino.Mail.WinUI/Controls/IAiHtmlActionHost.cs

@@ -9,4 +9,7 @@ public interface IAiHtmlActionHost
     Task ApplyHtmlResultAsync(string html, CancellationToken cancellationToken);
     Task<string?> TryGetCachedTranslationHtmlAsync(string languageCode, CancellationToken cancellationToken);
     Task SaveCachedTranslationHtmlAsync(string languageCode, string html, CancellationToken cancellationToken);
+    Task<string?> TryGetCachedSummaryTextAsync(CancellationToken cancellationToken);
+    Task SaveCachedSummaryTextAsync(string summary, CancellationToken cancellationToken);
+    string GetSuggestedSummaryFileName();
 }

Wino.Mail.WinUI/Controls/OperationCommandBar.cs

@@ -0,0 +1,477 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Collections.Specialized;
+using System.ComponentModel;
+using System.Windows.Input;
+using CommunityToolkit.WinUI;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+using Microsoft.UI.Xaml.Data;
+using Wino.Core.Domain;
+using Wino.Core.Domain.Enums;
+using Wino.Core.Domain.Interfaces;
+using Wino.Core.Domain.Models.Folders;
+using Wino.Core.Domain.Models.Menus;
+using Wino.Helpers;
+
+namespace Wino.Mail.WinUI.Controls;
+
+public sealed partial class OperationCommandBar : CommandBar
+{
+    private const string MailOperationTemplateKey = "OperationCommandBarMailOperationTemplate";
+    private const string FolderOperationTemplateKey = "OperationCommandBarFolderOperationTemplate";
+    private const string AIActionsTemplateKey = "OperationCommandBarAIActionsTemplate";
+    private const string ThemeToggleTemplateKey = "OperationCommandBarThemeToggleTemplate";
+    private const string SeparatorTemplateKey = "OperationCommandBarSeparatorTemplate";
+
+    private readonly IPreferencesService? _preferencesService;
+    private readonly HashSet<INotifyPropertyChanged> _trackedMenuItems = [];
+
+    [GeneratedDependencyProperty]
+    public partial ObservableCollection<IMenuOperation>? MenuItems { get; set; }
+
+    [GeneratedDependencyProperty]
+    public partial ICommand? ItemInvokedCommand { get; set; }
+
+    [GeneratedDependencyProperty]
+    public partial bool IsAIActionsEnabled { get; set; }
+
+    [GeneratedDependencyProperty]
+    public partial bool IsAIActionsPaneToggleVisible { get; set; }
+
+    [GeneratedDependencyProperty]
+    public partial bool IsEditorThemeDark { get; set; }
+
+    [GeneratedDependencyProperty]
+    public partial bool IsEditorThemeToggleVisible { get; set; }
+
+    public event EventHandler<bool>? AIActionsEnabledChanged;
+
+    public OperationCommandBar()
+    {
+        _preferencesService = App.Current.Services.GetService<IPreferencesService>();
+
+        DefaultLabelPosition = CommandBarDefaultLabelPosition.Right;
+        IsDynamicOverflowEnabled = true;
+        OverflowButtonVisibility = CommandBarOverflowButtonVisibility.Auto;
+
+        Loaded += OnLoaded;
+        Unloaded += OnUnloaded;
+        DynamicOverflowItemsChanging += OperationCommandBar_DynamicOverflowItemsChanging;
+    }
+
+    partial void OnMenuItemsPropertyChanged(DependencyPropertyChangedEventArgs e)
+    {
+        if (e.OldValue is INotifyCollectionChanged oldCollection)
+        {
+            oldCollection.CollectionChanged -= MenuItems_CollectionChanged;
+        }
+
+        DetachTrackedMenuItemHandlers();
+
+        if (e.NewValue is ObservableCollection<IMenuOperation> newItems)
+        {
+            newItems.CollectionChanged += MenuItems_CollectionChanged;
+            TrackMenuItemHandlers((IEnumerable<IMenuOperation>)newItems);
+        }
+
+        RefreshCommands();
+    }
+
+    partial void OnIsAIActionsEnabledChanged(bool newValue)
+    {
+        AIActionsEnabledChanged?.Invoke(this, newValue);
+    }
+
+    partial void OnIsAIActionsPaneToggleVisibleChanged(bool newValue)
+    {
+        RefreshCommands();
+    }
+
+    partial void OnIsEditorThemeDarkChanged(bool newValue)
+    {
+        RefreshCommands();
+    }
+
+    partial void OnIsEditorThemeToggleVisibleChanged(bool newValue)
+    {
+        RefreshCommands();
+    }
+
+    private void OnLoaded(object sender, RoutedEventArgs e)
+    {
+        RefreshCommands();
+    }
+
+    private void OnUnloaded(object sender, RoutedEventArgs e)
+    {
+        ClearGeneratedCommands();
+    }
+
+    private void OperationCommandBar_DynamicOverflowItemsChanging(CommandBar sender, DynamicOverflowItemsChangingEventArgs args)
+    {
+        if (args.Action == CommandBarDynamicOverflowAction.AddingToOverflow || sender.SecondaryCommands.Count > 0)
+        {
+            sender.OverflowButtonVisibility = CommandBarOverflowButtonVisibility.Visible;
+        }
+        else
+        {
+            sender.OverflowButtonVisibility = CommandBarOverflowButtonVisibility.Collapsed;
+        }
+    }
+
+    private void MenuItems_CollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
+    {
+        if (e.Action == NotifyCollectionChangedAction.Reset)
+        {
+            DetachTrackedMenuItemHandlers();
+
+            if (sender is IEnumerable<IMenuOperation> refreshedItems)
+            {
+                TrackMenuItemHandlers(refreshedItems);
+            }
+        }
+        else
+        {
+            UntrackMenuItemHandlers(e.OldItems);
+            TrackMenuItemHandlers(e.NewItems);
+        }
+
+        RefreshCommands();
+    }
+
+    private void MenuItem_PropertyChanged(object? sender, PropertyChangedEventArgs e)
+    {
+        if (string.IsNullOrEmpty(e.PropertyName)
+            || e.PropertyName == nameof(IMenuOperation.IsEnabled)
+            || e.PropertyName == nameof(IMenuOperation.IsSecondaryMenuPreferred)
+            || e.PropertyName == nameof(MenuOperationItemBase<MailOperation>.Operation)
+            || e.PropertyName == nameof(MenuOperationItemBase<MailOperation>.Identifier))
+        {
+            RefreshCommands();
+        }
+    }
+
+    private void TrackMenuItemHandlers(IEnumerable<IMenuOperation> items)
+    {
+        foreach (var item in items)
+        {
+            if (item is INotifyPropertyChanged propertyChanged && _trackedMenuItems.Add(propertyChanged))
+            {
+                propertyChanged.PropertyChanged += MenuItem_PropertyChanged;
+            }
+        }
+    }
+
+    private void TrackMenuItemHandlers(System.Collections.IList? items)
+    {
+        if (items == null)
+        {
+            return;
+        }
+
+        foreach (var item in items)
+        {
+            if (item is IMenuOperation menuItem)
+            {
+                TrackMenuItemHandlers([menuItem]);
+            }
+        }
+    }
+
+    private void UntrackMenuItemHandlers(System.Collections.IList? items)
+    {
+        if (items == null)
+        {
+            return;
+        }
+
+        foreach (var item in items)
+        {
+            if (item is INotifyPropertyChanged propertyChanged && _trackedMenuItems.Remove(propertyChanged))
+            {
+                propertyChanged.PropertyChanged -= MenuItem_PropertyChanged;
+            }
+        }
+    }
+
+    private void DetachTrackedMenuItemHandlers()
+    {
+        foreach (var item in _trackedMenuItems)
+        {
+            item.PropertyChanged -= MenuItem_PropertyChanged;
+        }
+
+        _trackedMenuItems.Clear();
+    }
+
+    private void RefreshCommands()
+    {
+        ClearGeneratedCommands();
+
+        if (IsAIActionsPaneToggleVisible)
+        {
+            PrimaryCommands.Add(CreateAIActionsToggleButton());
+        }
+
+        if (IsEditorThemeToggleVisible)
+        {
+            PrimaryCommands.Add(CreateThemeToggleButton());
+        }
+
+        if (MenuItems == null)
+        {
+            UpdateOverflowButtonVisibility();
+            return;
+        }
+
+        foreach (var item in MenuItems)
+        {
+            var element = CreateCommandElement(item);
+            if (element == null)
+            {
+                continue;
+            }
+
+            if (item.IsSecondaryMenuPreferred)
+            {
+                SecondaryCommands.Add(element);
+            }
+            else
+            {
+                PrimaryCommands.Add(element);
+            }
+        }
+
+        UpdateOverflowButtonVisibility();
+    }
+
+    private void ClearGeneratedCommands()
+    {
+        DetachCommandHandlers(PrimaryCommands);
+        DetachCommandHandlers(SecondaryCommands);
+
+        PrimaryCommands.Clear();
+        SecondaryCommands.Clear();
+    }
+
+    private void DetachCommandHandlers(IEnumerable<ICommandBarElement> commands)
+    {
+        foreach (var command in commands)
+        {
+            switch (command)
+            {
+                case AppBarButton button:
+                    button.Click -= OperationButton_Click;
+                    button.Click -= ThemeButton_Click;
+                    break;
+                case AppBarToggleButton toggleButton:
+                    toggleButton.ClearValue(AppBarToggleButton.IsCheckedProperty);
+                    break;
+            }
+        }
+    }
+
+    private ICommandBarElement? CreateCommandElement(IMenuOperation item)
+    {
+        if (item is MailOperationMenuItem mailOperation && mailOperation.Operation == MailOperation.Seperator)
+        {
+            return LoadCommandBarElementTemplate(SeparatorTemplateKey, new SeparatorCommandBarItemViewModel());
+        }
+
+        if (item is MailOperationMenuItem mailOperationItem)
+        {
+            var button = LoadCommandBarElementTemplate(
+                MailOperationTemplateKey,
+                new MenuOperationCommandBarItemViewModel(
+                    mailOperationItem,
+                    XamlHelpers.GetOperationString(mailOperationItem.Operation),
+                    XamlHelpers.GetWinoIconGlyph(mailOperationItem.Operation),
+                    GetOperationLabelPosition(XamlHelpers.GetOperationString(mailOperationItem.Operation))))
+                as AppBarButton;
+
+            if (button == null)
+            {
+                return null;
+            }
+
+            button.Tag = mailOperationItem;
+            button.Click += OperationButton_Click;
+            return button;
+        }
+
+        if (item is FolderOperationMenuItem folderOperationItem)
+        {
+            var label = XamlHelpers.GetOperationString(folderOperationItem.Operation);
+            var button = LoadCommandBarElementTemplate(
+                FolderOperationTemplateKey,
+                new MenuOperationCommandBarItemViewModel(
+                    folderOperationItem,
+                    label,
+                    XamlHelpers.GetPathGeometry(folderOperationItem.Operation),
+                    GetOperationLabelPosition(label)))
+                as AppBarButton;
+
+            if (button == null)
+            {
+                return null;
+            }
+
+            button.Tag = folderOperationItem;
+            button.Click += OperationButton_Click;
+            return button;
+        }
+
+        return null;
+    }
+
+    private AppBarToggleButton CreateAIActionsToggleButton()
+    {
+        var button = (AppBarToggleButton)LoadCommandBarElementTemplate(
+            AIActionsTemplateKey,
+            new AIActionsCommandBarItemViewModel(Translator.Composer_AiActions, "\uE945"));
+
+        button.SetBinding(AppBarToggleButton.IsCheckedProperty, new Binding
+        {
+            Mode = BindingMode.TwoWay,
+            Path = new PropertyPath(nameof(IsAIActionsEnabled)),
+            Source = this
+        });
+
+        return button;
+    }
+
+    private AppBarButton CreateThemeToggleButton()
+    {
+        var label = IsEditorThemeDark ? Translator.Composer_LightTheme : Translator.Composer_DarkTheme;
+        var icon = IsEditorThemeDark ? WinoIconGlyph.LightEditor : WinoIconGlyph.DarkEditor;
+
+        var button = (AppBarButton)LoadCommandBarElementTemplate(
+            ThemeToggleTemplateKey,
+            new ThemeCommandBarItemViewModel(label, icon));
+
+        button.Click += ThemeButton_Click;
+        return button;
+    }
+
+    private void OperationButton_Click(object sender, RoutedEventArgs e)
+    {
+        if (sender is AppBarButton button && button.Tag is IMenuOperation operation)
+        {
+            ItemInvokedCommand?.Execute(operation);
+        }
+    }
+
+    private void ThemeButton_Click(object sender, RoutedEventArgs e)
+    {
+        IsEditorThemeDark = !IsEditorThemeDark;
+    }
+
+    private object? FindTemplateResource(string key)
+    {
+        if (TryGetResourceRecursive(Resources, key, out var resource))
+        {
+            return resource;
+        }
+
+        return TryGetResourceRecursive(Application.Current.Resources, key, out resource) ? resource : null;
+    }
+
+    private static bool TryGetResourceRecursive(ResourceDictionary dictionary, string key, out object? resource)
+    {
+        if (dictionary.TryGetValue(key, out resource))
+        {
+            return true;
+        }
+
+        foreach (var mergedDictionary in dictionary.MergedDictionaries)
+        {
+            if (TryGetResourceRecursive(mergedDictionary, key, out resource))
+            {
+                return true;
+            }
+        }
+
+        resource = null;
+        return false;
+    }
+
+    private ICommandBarElement LoadCommandBarElementTemplate(string resourceKey, object dataContext)
+    {
+        var template = FindTemplateResource(resourceKey) as DataTemplate
+                       ?? throw new InvalidOperationException($"Unable to resolve resource '{resourceKey}'.");
+
+        if (template.LoadContent() is not ICommandBarElement element)
+        {
+            throw new InvalidOperationException($"Resource '{resourceKey}' did not create an ICommandBarElement.");
+        }
+
+        if (element is FrameworkElement frameworkElement)
+        {
+            frameworkElement.DataContext = dataContext;
+        }
+
+        return element;
+    }
+
+    private CommandBarLabelPosition GetOperationLabelPosition(string label)
+    {
+        return string.IsNullOrWhiteSpace(label) || _preferencesService == null || !_preferencesService.IsShowActionLabelsEnabled
+            ? CommandBarLabelPosition.Collapsed
+            : CommandBarLabelPosition.Default;
+    }
+
+    private void UpdateOverflowButtonVisibility()
+    {
+        OverflowButtonVisibility = SecondaryCommands.Count > 0
+            ? CommandBarOverflowButtonVisibility.Visible
+            : CommandBarOverflowButtonVisibility.Auto;
+    }
+
+    private sealed class MenuOperationCommandBarItemViewModel
+    {
+        public MenuOperationCommandBarItemViewModel(IMenuOperation operation, string label, WinoIconGlyph icon, CommandBarLabelPosition labelPosition)
+        {
+            Operation = operation;
+            Label = label;
+            Icon = icon;
+            ToolTip = label;
+            LabelPosition = labelPosition;
+        }
+
+        public IMenuOperation Operation { get; }
+        public string Label { get; }
+        public WinoIconGlyph Icon { get; }
+        public string ToolTip { get; }
+        public bool IsEnabled => Operation.IsEnabled;
+        public CommandBarLabelPosition LabelPosition { get; }
+    }
+
+    private sealed class AIActionsCommandBarItemViewModel
+    {
+        public AIActionsCommandBarItemViewModel(string toolTip, string glyph)
+        {
+            ToolTip = toolTip;
+            Glyph = glyph;
+        }
+
+        public string ToolTip { get; }
+        public string Glyph { get; }
+    }
+
+    private sealed class ThemeCommandBarItemViewModel
+    {
+        public ThemeCommandBarItemViewModel(string toolTip, WinoIconGlyph icon)
+        {
+            ToolTip = toolTip;
+            Icon = icon;
+        }
+
+        public string ToolTip { get; }
+        public WinoIconGlyph Icon { get; }
+    }
+
+    private sealed class SeparatorCommandBarItemViewModel;
+}

Wino.Mail.WinUI/Styles/OperationCommandBar.xaml

@@ -0,0 +1,66 @@
+<ResourceDictionary
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:controls="using:Wino.Mail.WinUI.Controls">
+
+    <Style
+        BasedOn="{StaticResource DefaultCommandBarStyle}"
+        TargetType="controls:OperationCommandBar">
+        <Setter Property="DefaultLabelPosition" Value="Right" />
+        <Setter Property="HorizontalContentAlignment" Value="Stretch" />
+        <Setter Property="IsDynamicOverflowEnabled" Value="True" />
+        <Setter Property="OverflowButtonVisibility" Value="Auto" />
+    </Style>
+
+    <DataTemplate x:Key="OperationCommandBarMailOperationTemplate">
+        <AppBarButton
+            MinWidth="40"
+            IsEnabled="{Binding IsEnabled}"
+            Label="{Binding Label}"
+            LabelPosition="{Binding LabelPosition}"
+            ToolTipService.ToolTip="{Binding ToolTip}">
+            <AppBarButton.Icon>
+                <controls:WinoFontIcon Icon="{Binding Icon}" />
+            </AppBarButton.Icon>
+        </AppBarButton>
+    </DataTemplate>
+
+    <DataTemplate x:Key="OperationCommandBarFolderOperationTemplate">
+        <AppBarButton
+            MinWidth="40"
+            IsEnabled="{Binding IsEnabled}"
+            Label="{Binding Label}"
+            LabelPosition="{Binding LabelPosition}"
+            ToolTipService.ToolTip="{Binding ToolTip}">
+            <AppBarButton.Icon>
+                <controls:WinoFontIcon Icon="{Binding Icon}" />
+            </AppBarButton.Icon>
+        </AppBarButton>
+    </DataTemplate>
+
+    <DataTemplate x:Key="OperationCommandBarAIActionsTemplate">
+        <AppBarToggleButton
+            MinWidth="40"
+            LabelPosition="Collapsed"
+            ToolTipService.ToolTip="{Binding ToolTip}">
+            <AppBarToggleButton.Icon>
+                <FontIcon FontFamily="{StaticResource SymbolThemeFontFamily}" Glyph="{Binding Glyph}" />
+            </AppBarToggleButton.Icon>
+        </AppBarToggleButton>
+    </DataTemplate>
+
+    <DataTemplate x:Key="OperationCommandBarThemeToggleTemplate">
+        <AppBarButton
+            MinWidth="40"
+            LabelPosition="Collapsed"
+            ToolTipService.ToolTip="{Binding ToolTip}">
+            <AppBarButton.Icon>
+                <controls:WinoFontIcon Icon="{Binding Icon}" />
+            </AppBarButton.Icon>
+        </AppBarButton>
+    </DataTemplate>
+
+    <DataTemplate x:Key="OperationCommandBarSeparatorTemplate">
+        <AppBarSeparator />
+    </DataTemplate>
+</ResourceDictionary>

Wino.Mail.WinUI/Views/Mail/ComposePage.xaml.cs

@@ -451,6 +451,20 @@ public sealed partial class ComposePage : ComposePageAbstract,
         return Task.CompletedTask;
     }
 
+    public Task<string?> TryGetCachedSummaryTextAsync(CancellationToken cancellationToken)
+    {
+        cancellationToken.ThrowIfCancellationRequested();
+        return Task.FromResult<string?>(null);
+    }
+
+    public Task SaveCachedSummaryTextAsync(string summary, CancellationToken cancellationToken)
+    {
+        cancellationToken.ThrowIfCancellationRequested();
+        return Task.CompletedTask;
+    }
+
+    public string GetSuggestedSummaryFileName() => "email-summary.txt";
+
     private void OpenAttachment_Click(object sender, RoutedEventArgs e)
     {
         if (sender is MenuFlyoutItem item && item.CommandParameter is MailAttachmentViewModel attachment)

Wino.Mail.WinUI/Views/Mail/MailListPage.xaml

@@ -15,10 +15,7 @@
     xmlns:domain="using:Wino.Core.Domain"
     xmlns:enums="using:Wino.Core.Domain.Enums"
     xmlns:helpers="using:Wino.Helpers"
-    xmlns:i="using:Microsoft.Xaml.Interactivity"
-    xmlns:interactivity="using:Microsoft.Xaml.Interactivity"
     xmlns:listview="using:Wino.Mail.WinUI.Controls.ListView"
-    xmlns:local="using:Wino.Behaviors"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     xmlns:menuflyouts="using:Wino.MenuFlyouts"
     xmlns:muxc="using:Microsoft.UI.Xaml.Controls"
@@ -176,15 +173,15 @@
                     Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
                     CornerRadius="8"
                     Visibility="{x:Bind ViewModel.PreferencesService.IsMailListActionBarEnabled}">
-                    <CommandBar
+                    <coreControls:OperationCommandBar
                         HorizontalAlignment="Left"
                         DefaultLabelPosition="Collapsed"
                         IsEnabled="{x:Bind helpers:XamlHelpers.CountToBooleanConverter(ViewModel.MailCollection.SelectedItemsCount), Mode=OneWay}"
+                        IsAIActionsPaneToggleVisible="False"
+                        ItemInvokedCommand="{x:Bind ViewModel.ExecuteTopBarActionCommand}"
+                        MenuItems="{x:Bind ViewModel.ActionItems, Mode=OneWay}"
                         OverflowButtonVisibility="Auto">
-                        <interactivity:Interaction.Behaviors>
+                    </coreControls:OperationCommandBar>
-                            <local:BindableCommandBarBehavior ItemClickedCommand="{x:Bind ViewModel.ExecuteTopBarActionCommand}" PrimaryCommands="{x:Bind ViewModel.ActionItems, Mode=OneWay}" />
-                        </interactivity:Interaction.Behaviors>
-                    </CommandBar>
                 </Grid>
 
                 <!--  Pivot + Sync + Multi Select  -->

Wino.Mail.WinUI/Views/Mail/MailRenderingPage.xaml

@@ -4,16 +4,14 @@
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:abstract="using:Wino.Views.Abstract"
     xmlns:controls="using:Wino.Controls"
+    xmlns:coreControls="using:Wino.Mail.WinUI.Controls"
     xmlns:customcontrols="using:Wino.Mail.WinUI.Controls.CustomControls"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:domain="using:Wino.Core.Domain"
     xmlns:entities="using:Wino.Core.Domain.Entities.Shared"
     xmlns:helpers="using:Wino.Helpers"
-    xmlns:interactivity="using:Microsoft.Xaml.Interactivity"
-    xmlns:local="using:Wino.Behaviors"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     xmlns:muxc="using:Microsoft.UI.Xaml.Controls"
-    xmlns:coreControls="using:Wino.Mail.WinUI.Controls"
     xmlns:toolkit="using:CommunityToolkit.WinUI.Controls"
     xmlns:viewModelData="using:Wino.Mail.ViewModels.Data"
     x:Name="root"
@@ -266,20 +264,17 @@
                         <PathIcon Data="M12 2a4 4 0 0 1 4 4v2h1.75A2.25 2.25 0 0 1 20 10.25v9.5A2.25 2.25 0 0 1 17.75 22H6.25A2.25 2.25 0 0 1 4 19.75v-9.5A2.25 2.25 0 0 1 6.25 8H8V6a4 4 0 0 1 4-4Zm5.75 7.5H6.25a.75.75 0 0 0-.75.75v9.5c0 .414.336.75.75.75h11.5a.75.75 0 0 0 .75-.75v-9.5a.75.75 0 0 0-.75-.75Zm-5.75 4a1.5 1.5 0 1 1 0 3 1.5 1.5 0 0 1 0-3Zm0-10A2.5 2.5 0 0 0 9.5 6v2h5V6A2.5 2.5 0 0 0 12 3.5Z" />
                     </Viewbox>
                 </Grid>
-                <CommandBar
+                <coreControls:OperationCommandBar
-                    x:Name="RendererBar"
+                    x:Name="RendererCommandBar"
                     Grid.Row="1"
                     HorizontalContentAlignment="Stretch"
                     DefaultLabelPosition="Right"
-                    DynamicOverflowItemsChanging="BarDynamicOverflowChanging"
+                    IsAIActionsPaneToggleVisible="True"
-                    IsDynamicOverflowEnabled="True"
+                    IsEditorThemeDark="{x:Bind ViewModel.IsDarkWebviewRenderer, Mode=TwoWay}"
-                    OverflowButtonVisibility="Auto">
+                    IsEditorThemeToggleVisible="True"
-                    <interactivity:Interaction.Behaviors>
+                    ItemInvokedCommand="{x:Bind ViewModel.OperationClickedCommand}"
-                        <local:BindableCommandBarBehavior
+                    MenuItems="{x:Bind ViewModel.MenuItems, Mode=OneWay}">
-                            ItemClickedCommand="{x:Bind ViewModel.OperationClickedCommand}"
+                    <coreControls:OperationCommandBar.Content>
-                            PrimaryCommands="{x:Bind ViewModel.MenuItems, Mode=OneWay}" />
-                    </interactivity:Interaction.Behaviors>
-                    <CommandBar.Content>
                         <Grid Padding="0,5">
                             <Grid.ColumnDefinitions>
                                 <ColumnDefinition Width="Auto" />
@@ -322,22 +317,9 @@
                                     <TextBlock FontSize="12" Text="{x:Bind helpers:XamlHelpers.GetCreationDateString(ViewModel.CreationDate, ViewModel.PreferencesService.Prefer24HourTimeFormat), Mode=OneWay}" />
                                 </StackPanel>
                             </Grid>
-
-                            <AppBarToggleButton
-                                x:Name="ReaderAiActionsToggleButton"
-                                Grid.Column="2"
-                                Checked="ReaderAiActionsToggleButton_Checked"
-                                MinWidth="40"
-                                HorizontalContentAlignment="Center"
-                                LabelPosition="Collapsed"
-                                ToolTipService.ToolTip="{x:Bind domain:Translator.Composer_AiActions}">
-                                <AppBarToggleButton.Icon>
-                                    <FontIcon FontFamily="{StaticResource SymbolThemeFontFamily}" Glyph="&#xE945;" />
-                                </AppBarToggleButton.Icon>
-                            </AppBarToggleButton>
                         </Grid>
-                    </CommandBar.Content>
+                    </coreControls:OperationCommandBar.Content>
-                </CommandBar>
+                </coreControls:OperationCommandBar>
 
                 <ScrollViewer
                     Grid.Row="2"
@@ -433,7 +415,7 @@
                     Margin="0,8,0,0"
                     AvailableActions="Translate, Summarize"
                     HtmlHost="{x:Bind}"
-                    Visibility="{x:Bind GetAiActionsPanelVisibility(ReaderAiActionsToggleButton.IsChecked), Mode=OneWay}" />
+                    Visibility="{x:Bind helpers:XamlHelpers.BoolToVisibilityConverter(RendererCommandBar.IsAIActionsEnabled), Mode=OneWay}" />
 
                 <!--  Attachments  -->
                 <Grid Grid.Row="4">

Wino.Mail.WinUI/Views/Mail/MailRenderingPage.xaml.cs

@@ -1,5 +1,5 @@
 using System;
-using System.Linq;
+using System.IO;
 using System.Text.Json;
 using System.Threading;
 using System.Threading.Tasks;
@@ -42,8 +42,6 @@ public sealed partial class MailRenderingPage : MailRenderingPageAbstract,
 
     public WebView2 GetWebView() => Chromium;
 
-    public Visibility GetAiActionsPanelVisibility(bool? isChecked) => isChecked == true ? Visibility.Visible : Visibility.Collapsed;
-
     public MailRenderingPage()
     {
         InitializeComponent();
@@ -56,6 +54,7 @@ public sealed partial class MailRenderingPage : MailRenderingPageAbstract,
         {
             return Chromium.CoreWebView2.PrintToPdfAsync(path, null).AsTask();
         });
+
     }
 
     private async Task<PrintingResult> DirectPrintAsync(WebView2PrintSettingsModel settings)
@@ -150,6 +149,8 @@ public sealed partial class MailRenderingPage : MailRenderingPageAbstract,
         ViewModel.SaveHTMLasPDFFunc = null;
         ViewModel.DirectPrintFuncAsync = null;
         _currentRenderedHtml = string.Empty;
+        RendererCommandBar.AIActionsEnabledChanged -= RendererCommandBar_AIActionsEnabledChanged;
+        RendererCommandBar.IsAIActionsEnabled = false;
         ReaderAiActionsPanel.CancelPendingOperation();
 
         DisposeWebView2();
@@ -168,10 +169,13 @@ public sealed partial class MailRenderingPage : MailRenderingPageAbstract,
         cancellationToken.ThrowIfCancellationRequested();
     }
 
-    private async void ReaderAiActionsToggleButton_Checked(object sender, RoutedEventArgs e)
+    private async void RendererCommandBar_AIActionsEnabledChanged(object? sender, bool isEnabled)
+    {
+        if (isEnabled)
         {
             await ReaderAiActionsPanel.RefreshAvailabilityAsync();
         }
+    }
 
     public async Task<string?> TryGetCachedTranslationHtmlAsync(string languageCode, CancellationToken cancellationToken)
     {
@@ -206,6 +210,43 @@ public sealed partial class MailRenderingPage : MailRenderingPageAbstract,
             cancellationToken).ConfigureAwait(false);
     }
 
+    public async Task<string?> TryGetCachedSummaryTextAsync(CancellationToken cancellationToken)
+    {
+        cancellationToken.ThrowIfCancellationRequested();
+
+        if (!ViewModel.CurrentMailAccountId.HasValue || !ViewModel.CurrentMailFileId.HasValue)
+        {
+            return null;
+        }
+
+        return await _mimeFileService.GetSummaryTextAsync(
+            ViewModel.CurrentMailAccountId.Value,
+            ViewModel.CurrentMailFileId.Value,
+            cancellationToken).ConfigureAwait(false);
+    }
+
+    public async Task SaveCachedSummaryTextAsync(string summary, CancellationToken cancellationToken)
+    {
+        cancellationToken.ThrowIfCancellationRequested();
+
+        if (!ViewModel.CurrentMailAccountId.HasValue || !ViewModel.CurrentMailFileId.HasValue)
+        {
+            return;
+        }
+
+        await _mimeFileService.SaveSummaryTextAsync(
+            ViewModel.CurrentMailAccountId.Value,
+            ViewModel.CurrentMailFileId.Value,
+            summary,
+            cancellationToken).ConfigureAwait(false);
+    }
+
+    public string GetSuggestedSummaryFileName()
+    {
+        var subject = string.IsNullOrWhiteSpace(ViewModel.Subject) ? "email-summary" : ViewModel.Subject;
+        return $"{SanitizeFileNamePart(subject)}.txt";
+    }
+
     private void DisposeWebView2()
     {
         if (Chromium == null) return;
@@ -228,6 +269,9 @@ public sealed partial class MailRenderingPage : MailRenderingPageAbstract,
         // Initialize WebView2 wiring before base navigation invokes ViewModel rendering.
         // Base.OnNavigatedTo triggers VM.OnNavigatedTo, which can send HtmlRenderingRequested.
         DOMLoadedTask = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
+        RendererCommandBar.AIActionsEnabledChanged -= RendererCommandBar_AIActionsEnabledChanged;
+        RendererCommandBar.AIActionsEnabledChanged += RendererCommandBar_AIActionsEnabledChanged;
+        RendererCommandBar.IsAIActionsEnabled = false;
         Chromium.CoreWebView2Initialized -= CoreWebViewInitialized;
         Chromium.CoreWebView2Initialized += CoreWebViewInitialized;
         _ = Chromium.EnsureCoreWebView2Async();
@@ -300,14 +344,6 @@ public sealed partial class MailRenderingPage : MailRenderingPageAbstract,
         }
     }
 
-    private void BarDynamicOverflowChanging(CommandBar sender, DynamicOverflowItemsChangingEventArgs args)
-    {
-        if (args.Action == CommandBarDynamicOverflowAction.AddingToOverflow || sender.SecondaryCommands.Any())
-            sender.OverflowButtonVisibility = CommandBarOverflowButtonVisibility.Visible;
-        else
-            sender.OverflowButtonVisibility = CommandBarOverflowButtonVisibility.Collapsed;
-    }
-
     private async Task UpdateEditorThemeAsync()
     {
         await DOMLoadedTask.Task;
@@ -404,4 +440,21 @@ public sealed partial class MailRenderingPage : MailRenderingPageAbstract,
     {
         WeakReferenceMessenger.Default.Send(new ClearMailSelectionsRequested());
     }
+
+    private static string SanitizeFileNamePart(string value)
+    {
+        var invalidCharacters = Path.GetInvalidFileNameChars();
+        var sanitizedChars = value.Trim().ToCharArray();
+
+        for (var i = 0; i < sanitizedChars.Length; i++)
+        {
+            if (Array.IndexOf(invalidCharacters, sanitizedChars[i]) >= 0)
+            {
+                sanitizedChars[i] = '_';
+            }
+        }
+
+        var sanitized = new string(sanitizedChars).Trim();
+        return string.IsNullOrWhiteSpace(sanitized) ? "email-summary" : sanitized;
+    }
 }

Wino.Services/MimeFileService.cs

@@ -3,6 +3,7 @@ using System.IO;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
+using HtmlAgilityPack;
 using MimeKit;
 using MimeKit.Cryptography;
 using Serilog;
@@ -162,6 +163,43 @@ public class MimeFileService : IMimeFileService
         }
     }
 
+    public async Task<string> GetSummaryTextAsync(Guid accountId, Guid fileId, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            var summaryPath = await GetSummaryTextPathAsync(accountId, fileId).ConfigureAwait(false);
+            if (!File.Exists(summaryPath))
+            {
+                return null;
+            }
+
+            return await File.ReadAllTextAsync(summaryPath, cancellationToken).ConfigureAwait(false);
+        }
+        catch (Exception ex)
+        {
+            _logger.Error(ex, "Could not read summary cache for FileId: {FileId}", fileId);
+            return null;
+        }
+    }
+
+    public async Task SaveSummaryTextAsync(Guid accountId, Guid fileId, string summary, CancellationToken cancellationToken = default)
+    {
+        if (string.IsNullOrWhiteSpace(summary))
+        {
+            return;
+        }
+
+        try
+        {
+            var summaryPath = await GetSummaryTextPathAsync(accountId, fileId).ConfigureAwait(false);
+            await File.WriteAllTextAsync(summaryPath, NormalizeSummaryText(summary), cancellationToken).ConfigureAwait(false);
+        }
+        catch (Exception ex)
+        {
+            _logger.Error(ex, "Could not save summary cache for FileId: {FileId}", fileId);
+        }
+    }
+
     public MailRenderModel GetMailRenderModel(MimeMessage message, string mimeLocalPath, MailRenderingOptions options = null)
     {
         var visitor = CreateHTMLPreviewVisitor(message, mimeLocalPath);
@@ -258,6 +296,12 @@ public class MimeFileService : IMimeFileService
         return Path.Combine(resourcePath, $"translated-{SanitizeFileNamePart(targetLanguage)}.html");
     }
 
+    private async Task<string> GetSummaryTextPathAsync(Guid accountId, Guid fileId)
+    {
+        var resourcePath = await GetMimeResourcePathAsync(accountId, fileId).ConfigureAwait(false);
+        return Path.Combine(resourcePath, "summary.txt");
+    }
+
     private static string SanitizeFileNamePart(string value)
     {
         var invalidCharacters = Path.GetInvalidFileNameChars();
@@ -268,4 +312,44 @@ public class MimeFileService : IMimeFileService
 
         return sanitizedChars.Length == 0 ? "default" : new string(sanitizedChars);
     }
+
+    private static string NormalizeSummaryText(string summary)
+    {
+        if (string.IsNullOrWhiteSpace(summary))
+        {
+            return string.Empty;
+        }
+
+        if (!summary.Contains('<'))
+        {
+            return summary.Trim();
+        }
+
+        var document = new HtmlDocument();
+        document.LoadHtml(summary);
+
+        var lineBreakNodes = document.DocumentNode.SelectNodes("//br|//p|//div|//li");
+        if (lineBreakNodes != null)
+        {
+            foreach (var node in lineBreakNodes)
+            {
+                if (node.Name.Equals("li", StringComparison.OrdinalIgnoreCase))
+                {
+                    node.ParentNode?.InsertBefore(document.CreateTextNode(Environment.NewLine + "- "), node);
+                }
+                else
+                {
+                    node.ParentNode?.InsertBefore(document.CreateTextNode(Environment.NewLine), node);
+                }
+            }
+        }
+
+        var plainText = HtmlEntity.DeEntitize(document.DocumentNode.InnerText ?? string.Empty);
+        return string.Join(
+            Environment.NewLine,
+            plainText
+                .Split([Environment.NewLine], StringSplitOptions.None)
+                .Select(line => line.Trim())
+                .Where(line => !string.IsNullOrWhiteSpace(line)));
+    }
 }