Added a feature-level preview configuration

app/MindWork AI Studio/Layout/MainLayout.razor.cs

@@ -104,7 +104,8 @@ public partial class MainLayout : LayoutComponentBase, IMessageBusReceiver, IDis
     private void LoadNavItems()
     {
         var palette = this.ColorTheme.GetCurrentPalette(this.SettingsManager);
-        if (this.SettingsManager.ConfigurationData.App.PreviewVisibility < PreviewVisibility.EXPERIMENTAL)
+        var isWriterModePreviewEnabled = PreviewFeatures.PRE_WRITER_MODE_2024.IsEnabled(this.SettingsManager);
+        if (!isWriterModePreviewEnabled)
         {
             this.navItems = new List<NavBarItem>
             {
@@ -116,7 +117,7 @@ public partial class MainLayout : LayoutComponentBase, IMessageBusReceiver, IDis
                 new("Settings", Icons.Material.Filled.Settings, palette.DarkLighten, palette.GrayLight, Routes.SETTINGS, false),
             };
         }
-        else if (this.SettingsManager.ConfigurationData.App.PreviewVisibility >= PreviewVisibility.EXPERIMENTAL)
+        else
         {
             this.navItems = new List<NavBarItem>
             {

app/MindWork AI Studio/Pages/Settings.razor

@@ -131,7 +131,7 @@
 
         </ExpansionPanel>
 
-        @if (this.SettingsManager.ConfigurationData.App.PreviewVisibility >= PreviewVisibility.PROTOTYPE)
+        @if (PreviewFeatures.PRE_RAG_2024.IsEnabled(this.SettingsManager))
         {
             <ExpansionPanel HeaderIcon="@Icons.Material.Filled.IntegrationInstructions" HeaderText="Configure Embeddings">
                 <PreviewPrototype/>
@@ -253,7 +253,17 @@
             <ConfigurationOption OptionDescription="Enable spellchecking?" LabelOn="Spellchecking is enabled" LabelOff="Spellchecking is disabled" State="@(() => this.SettingsManager.ConfigurationData.App.EnableSpellchecking)" StateUpdate="@(updatedState => this.SettingsManager.ConfigurationData.App.EnableSpellchecking = updatedState)" OptionHelp="When enabled, spellchecking will be active in all input fields. Depending on your operating system, errors may not be visually highlighted, but right-clicking may still offer possible corrections." />
             <ConfigurationSelect OptionDescription="Check for updates" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.UpdateBehavior)" Data="@ConfigurationSelectDataFactory.GetUpdateBehaviorData()" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.UpdateBehavior = selectedValue)" OptionHelp="How often should we check for app updates?"/>
             <ConfigurationSelect OptionDescription="Navigation bar behavior" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.NavigationBehavior)" Data="@ConfigurationSelectDataFactory.GetNavBehaviorData()" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.NavigationBehavior = selectedValue)" OptionHelp="Select the desired behavior for the navigation bar."/>
-            <ConfigurationSelect OptionDescription="Preview feature visibility" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.PreviewVisibility)" Data="@ConfigurationSelectDataFactory.GetPreviewVisibility()" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.PreviewVisibility = selectedValue)" OptionHelp="Do you want to show preview features in the app?"/>
+            <ConfigurationSelect OptionDescription="Preview feature visibility" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.PreviewVisibility)" Data="@ConfigurationSelectDataFactory.GetPreviewVisibility()" SelectionUpdate="@this.UpdatePreviewFeatures" OptionHelp="Do you want to show preview features in the app?"/>
+            
+            @if(this.SettingsManager.ConfigurationData.App.PreviewVisibility > PreviewVisibility.NONE)
+            {
+                var availablePreviewFeatures = ConfigurationSelectDataFactory.GetPreviewFeaturesData(this.SettingsManager).ToList();
+                if (availablePreviewFeatures.Count > 0)
+                {
+                    <ConfigurationMultiSelect OptionDescription="Select preview features" SelectedValues="@(() => this.SettingsManager.ConfigurationData.App.EnabledPreviewFeatures)" Data="@availablePreviewFeatures" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.EnabledPreviewFeatures = selectedValue)" OptionHelp="Which preview features would you like to enable?"/>
+                }
+            }
+            
             <ConfigurationProviderSelection Data="@this.availableLLMProviders" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.PreselectedProvider)" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.PreselectedProvider = selectedValue)" HelpText="@(() => "Would you like to set one provider as the default for the entire app? When you configure a different provider for an assistant, it will always take precedence.")"/>
             <ConfigurationSelect OptionDescription="Preselect one of your profiles?" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.PreselectedProfile)" Data="@ConfigurationSelectDataFactory.GetProfilesData(this.SettingsManager.ConfigurationData.Profiles)" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.PreselectedProfile = selectedValue)" OptionHelp="Would you like to set one of your profiles as the default for the entire app? When you configure a different profile for an assistant, it will always take precedence."/>
         </ExpansionPanel>

app/MindWork AI Studio/Pages/Settings.razor.cs

@@ -1,6 +1,7 @@
 using AIStudio.Dialogs;
 using AIStudio.Provider;
 using AIStudio.Settings;
+using AIStudio.Settings.DataModel;
 
 using Microsoft.AspNetCore.Components;
 
@@ -42,6 +43,16 @@ public partial class Settings : ComponentBase, IMessageBusReceiver, IDisposable
 
     #endregion
 
+    #region Preview-feature related
+
+    private void UpdatePreviewFeatures(PreviewVisibility previewVisibility)
+    {
+        this.SettingsManager.ConfigurationData.App.PreviewVisibility = previewVisibility;
+        this.SettingsManager.ConfigurationData.App.EnabledPreviewFeatures = previewVisibility.FilterPreviewFeatures(this.SettingsManager.ConfigurationData.App.EnabledPreviewFeatures);
+    }
+
+    #endregion
+    
     #region Provider related
 
     private async Task AddLLMProvider()

app/MindWork AI Studio/Settings/ConfigurationSelectData.cs

@@ -88,6 +88,12 @@ public static class ConfigurationSelectDataFactory
         yield return new("Show also experimental features: these are experimental; expect bugs, missing features, many changes", PreviewVisibility.EXPERIMENTAL);
     }
     
+    public static IEnumerable<ConfigurationSelectData<PreviewFeatures>> GetPreviewFeaturesData(SettingsManager settingsManager)
+    {
+        foreach (var source in settingsManager.ConfigurationData.App.PreviewVisibility.GetPreviewFeatures())
+            yield return new(source.GetPreviewDescription(), source);
+    }
+    
     public static IEnumerable<ConfigurationSelectData<NavBehavior>> GetNavBehaviorData()
     {
         yield return new("Navigation expands on mouse hover", NavBehavior.EXPAND_ON_HOVER);

app/MindWork AI Studio/Settings/DataModel/DataApp.cs

@@ -32,6 +32,11 @@ public sealed class DataApp
     /// The visibility setting for previews features.
     /// </summary>
     public PreviewVisibility PreviewVisibility { get; set; } = PreviewVisibility.NONE;
+
+    /// <summary>
+    /// The enabled preview features.
+    /// </summary>
+    public HashSet<PreviewFeatures> EnabledPreviewFeatures { get; set; } = new();
     
     /// <summary>
     /// Should we preselect a provider for the entire app?

app/MindWork AI Studio/Settings/DataModel/PreviewFeatureExtensions.cs

@@ -0,0 +1,14 @@
+namespace AIStudio.Settings.DataModel;
+
+public static class PreviewFeatureExtensions
+{
+    public static string GetPreviewDescription(this PreviewFeatures feature) => feature switch
+    {
+        PreviewFeatures.PRE_WRITER_MODE_2024 => "Writer Mode: Experiments about how to write long texts using AI",
+        PreviewFeatures.PRE_RAG_2024 => "RAG: Preview of our RAG implementation where you can refer your files or integrate enterprise data within your company",
+        
+        _ => "Unknown preview feature"
+    };
+    
+    public static bool IsEnabled(this PreviewFeatures feature, SettingsManager settingsManager) => settingsManager.ConfigurationData.App.EnabledPreviewFeatures.Contains(feature);
+}

app/MindWork AI Studio/Settings/DataModel/PreviewFeatures.cs

@@ -0,0 +1,11 @@
+namespace AIStudio.Settings.DataModel;
+
+public enum PreviewFeatures
+{
+    //
+    // Important: Never delete any enum value from this list.
+    // We must be able to deserialize old settings files that may contain these values.
+    //
+    PRE_WRITER_MODE_2024,
+    PRE_RAG_2024,
+}

app/MindWork AI Studio/Settings/DataModel/PreviewVisibilityExtensions.cs

@@ -0,0 +1,45 @@
+namespace AIStudio.Settings.DataModel;
+
+public static class PreviewVisibilityExtensions
+{
+    public static IList<PreviewFeatures> GetPreviewFeatures(this PreviewVisibility visibility)
+    {
+        var features = new List<PreviewFeatures>();
+        if (visibility >= PreviewVisibility.RELEASE_CANDIDATE)
+        {
+        }
+        
+        if (visibility >= PreviewVisibility.BETA)
+        {
+        }
+        
+        if (visibility >= PreviewVisibility.ALPHA)
+        {
+        }
+        
+        if (visibility >= PreviewVisibility.PROTOTYPE)
+        {
+            features.Add(PreviewFeatures.PRE_RAG_2024);
+        }
+        
+        if (visibility >= PreviewVisibility.EXPERIMENTAL)
+        {
+            features.Add(PreviewFeatures.PRE_WRITER_MODE_2024);
+        }
+        
+        return features;
+    }
+    
+    public static HashSet<PreviewFeatures> FilterPreviewFeatures(this PreviewVisibility visibility, HashSet<PreviewFeatures> enabledFeatures)
+    {
+        var filteredFeatures = new HashSet<PreviewFeatures>();
+        var previewFeatures = visibility.GetPreviewFeatures();
+        foreach (var feature in enabledFeatures)
+        {
+            if (previewFeatures.Contains(feature))
+                filteredFeatures.Add(feature);
+        }
+        
+        return filteredFeatures;
+    }
+}

app/MindWork AI Studio/Settings/SettingsManager.cs

@@ -84,6 +84,14 @@ public sealed class SettingsManager(ILogger<SettingsManager> logger)
             }
                 
             this.ConfigurationData = SettingsMigrations.Migrate(this.logger, settingsVersion, await File.ReadAllTextAsync(settingsPath), JSON_OPTIONS);
+            
+            //
+            // We filter the enabled preview features based on the preview visibility.
+            // This is necessary when the app starts up: some preview features may have
+            // been disabled or released from the last time the app was started.
+            //
+            this.ConfigurationData.App.EnabledPreviewFeatures = this.ConfigurationData.App.PreviewVisibility.FilterPreviewFeatures(this.ConfigurationData.App.EnabledPreviewFeatures);
+
             return;
         }
         

app/MindWork AI Studio/wwwroot/changelog/v0.9.22.md

@@ -1,5 +1,5 @@
 # v0.9.22, build 197 (2024-1x-xx xx:xx UTC)
 - Added the possibility to configure preview feature visibility in the app settings. This is useful for users who want to test new features before they are officially released.
-- Added the possibility to configure embedding providers in the app settings. Embeddings are necessary in order to integrate local data and files.
+- Added the possibility to configure embedding providers in the app settings as a prototype preview feature. Embeddings are necessary in order to integrate local data and files.
 - Added the writer mode as an experimental preview feature. This feature is just an experiment as we explore how to implement long text support in AI Studio.
 - Improved self-hosted LLM provider configuration by filtering embedding models.