Configure language & start language plugins (#400)

app/MindWork AI Studio/Components/ChatComponent.razor.cs

@@ -840,8 +840,8 @@ public partial class ChatComponent : MSGComponentBase, IAsyncDisposable
     #region Overrides of MSGComponentBase
 
     public override string ComponentName => nameof(ChatComponent);
-    
-    public override async Task ProcessIncomingMessage<T>(ComponentBase? sendingComponent, Event triggeredEvent, T? data) where T : default
+
+    protected override async Task ProcessIncomingMessage<T>(ComponentBase? sendingComponent, Event triggeredEvent, T? data) where T : default
     {
         switch (triggeredEvent)
         {
@@ -860,7 +860,7 @@ public partial class ChatComponent : MSGComponentBase, IAsyncDisposable
         }
     }
 
-    public override Task<TResult?> ProcessMessageWithResult<TPayload, TResult>(ComponentBase? sendingComponent, Event triggeredEvent, TPayload? data) where TResult : default where TPayload : default
+    protected override Task<TResult?> ProcessIncomingMessageWithResult<TPayload, TResult>(ComponentBase? sendingComponent, Event triggeredEvent, TPayload? data) where TResult : default where TPayload : default
     {
         switch (triggeredEvent)
         {

app/MindWork AI Studio/Components/InnerScrolling.razor.cs

@@ -46,8 +46,8 @@ public partial class InnerScrolling : MSGComponentBase
     #region Overrides of MSGComponentBase
 
     public override string ComponentName => nameof(InnerScrolling);
-    
-    public override Task ProcessIncomingMessage<T>(ComponentBase? sendingComponent, Event triggeredEvent, T? data) where T : default
+
+    protected override Task ProcessIncomingMessage<T>(ComponentBase? sendingComponent, Event triggeredEvent, T? data) where T : default
     {
         switch (triggeredEvent)
         {
@@ -59,11 +59,6 @@ public partial class InnerScrolling : MSGComponentBase
         return Task.CompletedTask;
     }
 
-    public override Task<TResult?> ProcessMessageWithResult<TPayload, TResult>(ComponentBase? sendingComponent, Event triggeredEvent, TPayload? data) where TResult : default where TPayload : default
-    {
-        return Task.FromResult(default(TResult));
-    }
-
     #endregion
 
     private string MinWidthStyle => string.IsNullOrWhiteSpace(this.MinWidth) ? string.Empty : $"min-width: {this.MinWidth}; ";

app/MindWork AI Studio/Components/MSGComponentBase.cs

@@ -1,10 +1,11 @@
 using AIStudio.Settings;
+using AIStudio.Tools.PluginSystem;
 
 using Microsoft.AspNetCore.Components;
 
 namespace AIStudio.Components;
 
-public abstract class MSGComponentBase : ComponentBase, IDisposable, IMessageBusReceiver
+public abstract class MSGComponentBase : ComponentBase, IDisposable, IMessageBusReceiver, ILang
 {
     [Inject]
     protected SettingsManager SettingsManager { get; init; } = null!;
@@ -12,12 +13,37 @@ public abstract class MSGComponentBase : ComponentBase, IDisposable, IMessageBus
     [Inject]
     protected MessageBus MessageBus { get; init; } = null!;
 
+    [Inject]
+    private ILogger<PluginLanguage> Logger { get; init; } = null!;
+
+    private ILanguagePlugin Lang { get; set; } = PluginFactory.BaseLanguage;
+
     #region Overrides of ComponentBase
 
-    protected override void OnInitialized()
+    protected override async Task OnInitializedAsync()
     {
+        this.Lang = await this.SettingsManager.GetActiveLanguagePlugin();
+        
         this.MessageBus.RegisterComponent(this);
-        base.OnInitialized();
+        await base.OnInitializedAsync();
+    }
+
+    #endregion
+
+    #region Implementation of ILang
+
+    /// <inheritdoc />
+    public string T(string fallbackEN)
+    {
+        var type = this.GetType();
+        var ns = $"{type.Namespace!}::{type.Name}".ToUpperInvariant().Replace(".", "::");
+        var key = $"root::{ns}::T{fallbackEN.ToFNV32()}";
+        
+        if(this.Lang.TryGetText(key, out var text, logWarning: false))
+            return text;
+        
+        this.Logger.LogWarning($"Missing translation key '{key}' for content '{fallbackEN}'.");
+        return fallbackEN;
     }
 
     #endregion
@@ -26,7 +52,7 @@ public abstract class MSGComponentBase : ComponentBase, IDisposable, IMessageBus
 
     public abstract string ComponentName { get; }
 
-    public Task ProcessMessage<T>(ComponentBase? sendingComponent, Event triggeredEvent, T? data)
+    public async Task ProcessMessage<T>(ComponentBase? sendingComponent, Event triggeredEvent, T? data)
     {
         switch (triggeredEvent)
         {
@@ -34,19 +60,34 @@ public abstract class MSGComponentBase : ComponentBase, IDisposable, IMessageBus
                 this.StateHasChanged();
                 break;
             
+            case Event.PLUGINS_RELOADED:
+                this.Lang = await this.SettingsManager.GetActiveLanguagePlugin();
+                await this.InvokeAsync(this.StateHasChanged);
+                break;
+            
             default:
-                return this.ProcessIncomingMessage(sendingComponent, triggeredEvent, data);
+                await this.ProcessIncomingMessage(sendingComponent, triggeredEvent, data);
+                break;
         }
-        
-        return Task.CompletedTask;
     }
-    
-    public abstract Task ProcessIncomingMessage<T>(ComponentBase? sendingComponent, Event triggeredEvent, T? data);
-    
-    public abstract Task<TResult?> ProcessMessageWithResult<TPayload, TResult>(ComponentBase? sendingComponent, Event triggeredEvent, TPayload? data);
+
+    public async Task<TResult?> ProcessMessageWithResult<TPayload, TResult>(ComponentBase? sendingComponent, Event triggeredEvent, TPayload? data)
+    {
+        return await this.ProcessIncomingMessageWithResult<TPayload, TResult>(sendingComponent, triggeredEvent, data);
+    }
 
     #endregion
 
+    protected virtual Task ProcessIncomingMessage<T>(ComponentBase? sendingComponent, Event triggeredEvent, T? data)
+    {
+        return Task.CompletedTask;
+    }
+
+    protected virtual Task<TResult?> ProcessIncomingMessageWithResult<TPayload, TResult>(ComponentBase? sendingComponent, Event triggeredEvent, TPayload? data)
+    {
+        return Task.FromResult<TResult?>(default);
+    }
+
     #region Implementation of IDisposable
 
     public void Dispose()
@@ -71,7 +112,8 @@ public abstract class MSGComponentBase : ComponentBase, IDisposable, IMessageBus
         // Append the color theme changed event to the list of events:
         var eventsList = new List<Event>(events)
         {
-            Event.COLOR_THEME_CHANGED
+            Event.COLOR_THEME_CHANGED,
+            Event.PLUGINS_RELOADED,
         };
         
         this.MessageBus.ApplyFilters(this, components, eventsList.ToArray());

app/MindWork AI Studio/Components/Settings/SettingsPanelApp.razor

@@ -3,14 +3,25 @@
 @inherits SettingsPanelBase
 
 <ExpansionPanel HeaderIcon="@Icons.Material.Filled.Apps" HeaderText="App Options">
+    
+    @if (PreviewFeatures.PRE_PLUGINS_2025.IsEnabled(this.SettingsManager))
+    {
+        <ConfigurationSelect OptionDescription="Language behavior" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.LanguageBehavior)" Data="@ConfigurationSelectDataFactory.GetLangBehaviorData()" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.LanguageBehavior = selectedValue)" OptionHelp="Select the language behavior for the app. The default is to use the system language. You might want to choose a language manually?"/>
+        
+        @if (this.SettingsManager.ConfigurationData.App.LanguageBehavior is LangBehavior.MANUAL)
+        {
+            <ConfigurationSelect OptionDescription="Language" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.LanguagePluginId)" Data="@ConfigurationSelectDataFactory.GetLanguagesData()" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.LanguagePluginId = selectedValue)" OptionHelp="Select the language for the app."/>
+        }
+    }
+    
     <ConfigurationSelect OptionDescription="Color theme" SelectedValue="@(() => this.SettingsManager.ConfigurationData.App.PreferredTheme)" Data="@ConfigurationSelectDataFactory.GetThemesData()" SelectionUpdate="@(selectedValue => this.SettingsManager.ConfigurationData.App.PreferredTheme = selectedValue)" OptionHelp="Choose the color theme that best suits for you."/>
     <ConfigurationOption OptionDescription="Save energy?" LabelOn="Energy saving is enabled" LabelOff="Energy saving is disabled" State="@(() => this.SettingsManager.ConfigurationData.App.IsSavingEnergy)" StateUpdate="@(updatedState => this.SettingsManager.ConfigurationData.App.IsSavingEnergy = updatedState)" OptionHelp="When enabled, streamed content from the AI is updated once every third second. When disabled, streamed content will be updated as soon as it is available."/>
-    <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." />
+    <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="@this.UpdatePreviewFeatures" OptionHelp="Do you want to show preview features in the app?"/>
-    
-    @if(this.SettingsManager.ConfigurationData.App.PreviewVisibility > PreviewVisibility.NONE)
+
+    @if (this.SettingsManager.ConfigurationData.App.PreviewVisibility > PreviewVisibility.NONE)
     {
         var availablePreviewFeatures = ConfigurationSelectDataFactory.GetPreviewFeaturesData(this.SettingsManager).ToList();
         if (availablePreviewFeatures.Count > 0)
@@ -18,7 +29,7 @@
             <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 Component="Components.APP_SETTINGS" Data="@this.AvailableLLMProvidersFunc()" 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>