Start the plugin system (#372)

app/MindWork AI Studio/Tools/PluginSystem/IPluginMetadata.cs

@@ -0,0 +1,74 @@
+namespace AIStudio.Tools.PluginSystem;
+
+public interface IPluginMetadata
+{
+    /// <summary>
+    /// The icon of this plugin.
+    /// </summary>
+    public string IconSVG { get; }
+    
+    /// <summary>
+    /// The type of this plugin.
+    /// </summary>
+    public PluginType Type { get; }
+    
+    /// <summary>
+    /// The ID of this plugin.
+    /// </summary>
+    public Guid Id { get; }
+    
+    /// <summary>
+    /// The name of this plugin.
+    /// </summary>
+    public string Name { get; }
+    
+    /// <summary>
+    /// The description of this plugin.
+    /// </summary>
+    public string Description { get; }
+    
+    /// <summary>
+    /// The version of this plugin.
+    /// </summary>
+    public PluginVersion Version { get; }
+
+    /// <summary>
+    /// The authors of this plugin.
+    /// </summary>
+    public string[] Authors { get; }
+    
+    /// <summary>
+    /// The support contact for this plugin.
+    /// </summary>
+    public string SupportContact { get; }
+    
+    /// <summary>
+    /// The source URL of this plugin.
+    /// </summary>
+    public string SourceURL { get; }
+    
+    /// <summary>
+    /// The categories of this plugin.
+    /// </summary>
+    public PluginCategory[] Categories { get; }
+    
+    /// <summary>
+    /// The target groups of this plugin.
+    /// </summary>
+    public PluginTargetGroup[] TargetGroups { get; }
+    
+    /// <summary>
+    /// True, when the plugin is maintained.
+    /// </summary>
+    public bool IsMaintained { get; }
+    
+    /// <summary>
+    /// The message that should be displayed when the plugin is deprecated.
+    /// </summary>
+    public string DeprecationMessage { get; }
+
+    /// <summary>
+    /// True, when the plugin is AI Studio internal.
+    /// </summary>
+    public bool IsInternal { get; }
+}

app/MindWork AI Studio/Tools/PluginSystem/NoPlugin.cs

@@ -6,4 +6,4 @@ namespace AIStudio.Tools.PluginSystem;
 /// Represents a plugin that could not be loaded.
 /// </summary>
 /// <param name="parsingError">The error message that occurred while parsing the plugin.</param>
-public sealed class NoPlugin(string parsingError) : PluginBase(string.Empty, LuaState.Create(), PluginType.NONE, parsingError);
+public sealed class NoPlugin(string parsingError) : PluginBase(false, LuaState.Create(), PluginType.NONE, parsingError);

app/MindWork AI Studio/Tools/PluginSystem/PluginBase.Icon.cs

@@ -0,0 +1,45 @@
+namespace AIStudio.Tools.PluginSystem;
+
+public abstract partial class PluginBase
+{
+    private const string DEFAULT_ICON_SVG =
+    """
+    <svg height="1.5em" width="1.5em" viewBox="0 0 24 24" fill="#1f1f1f"><path d="M0 0h24v24H0V0z" fill="none"/><path d="M19 13h-2V7h-6V5c0-.28-.22-.5-.5-.5s-.5.22-.5.5v2H4l.01 2.12C5.76 9.8 7 11.51 7 13.5c0 1.99-1.25 3.7-3 4.38V20h2.12c.68-1.75 2.39-3 4.38-3 1.99 0 3.7 1.25 4.38 3H17v-6h2c.28 0 .5-.22.5-.5s-.22-.5-.5-.5z" opacity=".3"/><path d="M19 11V7c0-1.1-.9-2-2-2h-4c0-1.38-1.12-2.5-2.5-2.5S8 3.62 8 5H4c-1.1 0-1.99.9-1.99 2v3.8h.29c1.49 0 2.7 1.21 2.7 2.7s-1.21 2.7-2.7 2.7H2V20c0 1.1.9 2 2 2h3.8v-.3c0-1.49 1.21-2.7 2.7-2.7s2.7 1.21 2.7 2.7v.3H17c1.1 0 2-.9 2-2v-4c1.38 0 2.5-1.12 2.5-2.5S20.38 11 19 11zm0 3h-2v6h-2.12c-.68-1.75-2.39-3-4.38-3-1.99 0-3.7 1.25-4.38 3H4v-2.12c1.75-.68 3-2.39 3-4.38 0-1.99-1.24-3.7-2.99-4.38L4 7h6V5c0-.28.22-.5.5-.5s.5.22.5.5v2h6v6h2c.28 0 .5.22.5.5s-.22.5-.5.5z"/></svg>
+    """;
+    
+    #region Initialization-related methods
+
+    /// <summary>
+    /// Tries to initialize the icon of the plugin.
+    /// </summary>
+    /// <remarks>
+    /// When no icon is specified, the default icon will be used.
+    /// </remarks>
+    /// <param name="message">The error message, when the icon could not be read.</param>
+    /// <param name="iconSVG">The read icon as SVG.</param>
+    /// <returns>True, when the icon could be read successfully.</returns>
+
+    // ReSharper disable once OutParameterValueIsAlwaysDiscarded.Local
+    // ReSharper disable once UnusedMethodReturnValue.Local
+    private bool TryInitIconSVG(out string message, out string iconSVG)
+    {
+        if (!this.state.Environment["ICON_SVG"].TryRead(out iconSVG))
+        {
+            iconSVG = DEFAULT_ICON_SVG;
+            message = "The field ICON_SVG does not exist or is not a valid string.";
+            return true;
+        }
+
+        if (string.IsNullOrWhiteSpace(iconSVG))
+        {
+            iconSVG = DEFAULT_ICON_SVG;
+            message = "The field ICON_SVG is empty. The icon must be a non-empty string.";
+            return true;
+        }
+
+        message = string.Empty;
+        return true;
+    }
+
+    #endregion
+}

app/MindWork AI Studio/Tools/PluginSystem/PluginBase.cs

@@ -1,5 +1,4 @@
 using Lua;
-using Lua.Standard;
 
 // ReSharper disable MemberCanBePrivate.Global
 namespace AIStudio.Tools.PluginSystem;
@@ -7,73 +6,55 @@ namespace AIStudio.Tools.PluginSystem;
 /// <summary>
 /// Represents the base of any AI Studio plugin.
 /// </summary>
-public abstract class PluginBase
+public abstract partial class PluginBase : IPluginMetadata
 {
     private readonly IReadOnlyCollection<string> baseIssues;
     protected readonly LuaState state;
 
     protected readonly List<string> pluginIssues = [];
+
+    /// <inheritdoc />
+    public string IconSVG { get; }
     
-    /// <summary>
-    /// The type of this plugin.
-    /// </summary>
+    /// <inheritdoc />
     public PluginType Type { get; }
     
-    /// <summary>
-    /// The ID of this plugin.
-    /// </summary>
+    /// <inheritdoc />
     public Guid Id { get; }
     
-    /// <summary>
-    /// The name of this plugin.
-    /// </summary>
+    /// <inheritdoc />
     public string Name { get; } = string.Empty;
     
-    /// <summary>
-    /// The description of this plugin.
-    /// </summary>
+    /// <inheritdoc />
     public string Description { get; } = string.Empty;
     
-    /// <summary>
-    /// The version of this plugin.
-    /// </summary>
+    /// <inheritdoc />
     public PluginVersion Version { get; }
 
-    /// <summary>
-    /// The authors of this plugin.
-    /// </summary>
+    /// <inheritdoc />
     public string[] Authors { get; } = [];
     
-    /// <summary>
-    /// The support contact for this plugin.
-    /// </summary>
+    /// <inheritdoc />
     public string SupportContact { get; } = string.Empty;
     
-    /// <summary>
-    /// The source URL of this plugin.
-    /// </summary>
+    /// <inheritdoc />
     public string SourceURL { get; } = string.Empty;
     
-    /// <summary>
-    /// The categories of this plugin.
-    /// </summary>
+    /// <inheritdoc />
     public PluginCategory[] Categories { get; } = [];
     
-    /// <summary>
-    /// The target groups of this plugin.
-    /// </summary>
+    /// <inheritdoc />
     public PluginTargetGroup[] TargetGroups { get; } = [];
     
-    /// <summary>
-    /// True, when the plugin is maintained.
-    /// </summary>
+    /// <inheritdoc />
     public bool IsMaintained { get; }
     
-    /// <summary>
-    /// The message that should be displayed when the plugin is deprecated.
-    /// </summary>
-    public string? DeprecationMessage { get; }
-
+    /// <inheritdoc />
+    public string DeprecationMessage { get; } = string.Empty;
+    
+    /// <inheritdoc />
+    public bool IsInternal { get; }
+    
     /// <summary>
     /// The issues that occurred during the initialization of this plugin.
     /// </summary>
@@ -88,31 +69,24 @@ public abstract class PluginBase
     /// </remarks>
     public bool IsValid => this is not NoPlugin && this.baseIssues.Count == 0 && this.pluginIssues.Count == 0;
 
-    protected PluginBase(string path, LuaState state, PluginType type, string parseError = "")
+    protected PluginBase(bool isInternal, LuaState state, PluginType type, string parseError = "")
     {
         this.state = state;
         this.Type = type;
-     
-        // For security reasons, we don't want to allow the plugin to load modules:
-        this.state.ModuleLoader = new NoModuleLoader();
-        
-        // Add some useful libraries:
-        this.state.OpenModuleLibrary();
-        this.state.OpenStringLibrary();
-        this.state.OpenTableLibrary();
-        this.state.OpenMathLibrary();
-        this.state.OpenBitwiseLibrary();
-        this.state.OpenCoroutineLibrary();
-     
-        // Add the module loader so that the plugin can load other Lua modules:
-        this.state.ModuleLoader = new PluginLoader(path);
         
         var issues = new List<string>();
         if(!string.IsNullOrWhiteSpace(parseError))
             issues.Add(parseError);
+
+        // Notice: when no icon is specified, the default icon will be used.
+        this.TryInitIconSVG(out _, out var iconSVG);
+        this.IconSVG = iconSVG;
         
         if(this.TryInitId(out var issue, out var id))
+        {
             this.Id = id;
+            this.IsInternal = isInternal;
+        }
         else if(this is not NoPlugin)
             issues.Add(issue);
         
@@ -456,19 +430,19 @@ public abstract class PluginBase
     /// <param name="message">The error message, when the deprecation message could not be read.</param>
     /// <param name="deprecationMessage">The read deprecation message.</param>
     /// <returns>True, when the deprecation message could be read successfully.</returns>
-    private bool TryInitDeprecationMessage(out string message, out string? deprecationMessage)
+    private bool TryInitDeprecationMessage(out string message, out string deprecationMessage)
     {
         if (!this.state.Environment["DEPRECATION_MESSAGE"].TryRead(out deprecationMessage))
         {
-            deprecationMessage = null;
-            message = "The field DEPRECATION_MESSAGE does not exist, is not a valid string. This field is optional: use nil to indicate that the plugin is not deprecated.";
+            deprecationMessage = string.Empty;
+            message = "The field DEPRECATION_MESSAGE does not exist, is not a valid string. This message is optional: use an empty string to indicate that the plugin is not deprecated.";
             return false;
         }
         
         message = string.Empty;
         return true;
     }
-    
+
     /// <summary>
     /// Tries to initialize the UI text content of the plugin.
     /// </summary>

app/MindWork AI Studio/Tools/PluginSystem/PluginFactory.Internal.cs

@@ -0,0 +1,79 @@
+using System.Reflection;
+
+using Microsoft.Extensions.FileProviders;
+
+namespace AIStudio.Tools.PluginSystem;
+
+public static partial class PluginFactory
+{
+    public static async Task EnsureInternalPlugins()
+    {
+        LOG.LogInformation("Start ensuring internal plugins.");
+        foreach (var plugin in Enum.GetValues<InternalPlugin>())
+        {
+            LOG.LogInformation($"Ensure plugin: {plugin}");
+            await EnsurePlugin(plugin);
+        }
+    }
+    
+    private static async Task EnsurePlugin(InternalPlugin plugin)
+    {
+        try
+        {
+            #if DEBUG
+            var basePath = Path.Join(Environment.CurrentDirectory, "Plugins");
+            var resourceFileProvider = new PhysicalFileProvider(basePath);
+            #else
+            var resourceFileProvider = new ManifestEmbeddedFileProvider(Assembly.GetAssembly(type: typeof(Program))!, "Plugins");
+            #endif
+            
+            var metaData = plugin.MetaData();
+            var mainResourcePath = $"{metaData.ResourcePath}/plugin.lua";
+            var resourceInfo = resourceFileProvider.GetFileInfo(mainResourcePath);
+            
+            if(!resourceInfo.Exists)
+            {
+                LOG.LogError($"The plugin {plugin} does not exist. This should not happen, since the plugin is an integral part of AI Studio.");
+                return;
+            }
+            
+            // Ensure that the additional resources exist:
+            foreach (var content in resourceFileProvider.GetDirectoryContents(metaData.ResourcePath))
+            {
+                if(content.IsDirectory)
+                {
+                    LOG.LogError("The plugin contains a directory. This is not allowed.");
+                    continue;
+                }
+                
+                await CopyInternalPluginFile(content, metaData);
+            }
+        }
+        catch
+        {
+            LOG.LogError($"Was not able to ensure the plugin: {plugin}");
+        }
+    }
+
+    private static async Task CopyInternalPluginFile(IFileInfo resourceInfo, InternalPluginData metaData)
+    {
+        await using var inputStream = resourceInfo.CreateReadStream();
+        
+        var pluginTypeBasePath = Path.Join(INTERNAL_PLUGINS_ROOT, metaData.Type.GetDirectory());
+        
+        if (!Directory.Exists(INTERNAL_PLUGINS_ROOT))
+            Directory.CreateDirectory(INTERNAL_PLUGINS_ROOT);
+        
+        if (!Directory.Exists(pluginTypeBasePath))
+            Directory.CreateDirectory(pluginTypeBasePath);
+        
+        var pluginPath = Path.Join(pluginTypeBasePath, metaData.ResourceName);
+        if (!Directory.Exists(pluginPath))
+            Directory.CreateDirectory(pluginPath);
+        
+        var pluginFilePath = Path.Join(pluginPath, resourceInfo.Name);
+            
+        await using var outputStream = File.Create(pluginFilePath);
+        await inputStream.CopyToAsync(outputStream);
+    }
+}

app/MindWork AI Studio/Tools/PluginSystem/PluginFactory.cs

@@ -1,101 +1,110 @@
-using System.Reflection;
+using System.Text;
 
 using AIStudio.Settings;
 
 using Lua;
-
-using Microsoft.Extensions.FileProviders;
+using Lua.Standard;
 
 namespace AIStudio.Tools.PluginSystem;
 
-public static class PluginFactory
+public static partial class PluginFactory
 {
     private static readonly ILogger LOG = Program.LOGGER_FACTORY.CreateLogger("PluginFactory");
+    
     private static readonly string DATA_DIR = SettingsManager.DataDirectory!;
     
-    public static async Task EnsureInternalPlugins()
-    {
-        LOG.LogInformation("Start ensuring internal plugins.");
-        foreach (var plugin in Enum.GetValues<InternalPlugin>())
-        {
-            LOG.LogInformation($"Ensure plugin: {plugin}");
-            await EnsurePlugin(plugin);
-        }
-    }
+    private static readonly string PLUGINS_ROOT = Path.Join(DATA_DIR, "plugins");
     
-    private static async Task EnsurePlugin(InternalPlugin plugin)
+    private static readonly string INTERNAL_PLUGINS_ROOT = Path.Join(PLUGINS_ROOT, ".internal");
+
+    private static readonly List<IPluginMetadata> AVAILABLE_PLUGINS = [];
+    
+    /// <summary>
+    /// A list of all available plugins.
+    /// </summary>
+    public static IReadOnlyCollection<IPluginMetadata> AvailablePlugins => AVAILABLE_PLUGINS;
+    
+    /// <summary>
+    /// Try to load all plugins from the plugins directory.
+    /// </summary>
+    /// <remarks>
+    /// Loading plugins means:<br/>
+    /// - Parsing and checking the plugin code<br/>
+    /// - Check for forbidden plugins<br/>
+    /// - Creating a new instance of the allowed plugin<br/>
+    /// - Read the plugin metadata<br/>
+    /// <br/>
+    /// Loading a plugin does not mean to start the plugin, though.
+    /// </remarks>
+    public static async Task LoadAll(CancellationToken cancellationToken = default)
     {
-        try
+        LOG.LogInformation("Start loading plugins.");
+        if (!Directory.Exists(PLUGINS_ROOT))
         {
-            #if DEBUG
-            var basePath = Path.Join(Environment.CurrentDirectory, "Plugins");
-            var resourceFileProvider = new PhysicalFileProvider(basePath);
-            #else
-            var resourceFileProvider = new ManifestEmbeddedFileProvider(Assembly.GetAssembly(type: typeof(Program))!, "Plugins");
-            #endif
+            LOG.LogInformation("No plugins found.");
+            return;
+        }
+        
+        //
+        // The easiest way to load all plugins is to find all `plugin.lua` files and load them.
+        // By convention, each plugin is enforced to have a `plugin.lua` file.
+        //
+        var pluginMainFiles = Directory.EnumerateFiles(PLUGINS_ROOT, "plugin.lua", SearchOption.AllDirectories);
+        foreach (var pluginMainFile in pluginMainFiles)
+        {
+            if (cancellationToken.IsCancellationRequested)
+                break;
             
-            var metaData = plugin.MetaData();
-            var mainResourcePath = $"{metaData.ResourcePath}/plugin.lua";
-            var resourceInfo = resourceFileProvider.GetFileInfo(mainResourcePath);
+            LOG.LogInformation($"Try to load plugin: {pluginMainFile}");
+            var code = await File.ReadAllTextAsync(pluginMainFile, Encoding.UTF8, cancellationToken);
+            var pluginPath = Path.GetDirectoryName(pluginMainFile)!;
+            var plugin = await Load(pluginPath, code, cancellationToken);
             
-            if(!resourceInfo.Exists)
+            switch (plugin)
             {
-                LOG.LogError($"The plugin {plugin} does not exist. This should not happen, since the plugin is an integral part of AI Studio.");
-                return;
-            }
-            
-            // Ensure that the additional resources exist:
-            foreach (var content in resourceFileProvider.GetDirectoryContents(metaData.ResourcePath))
-            {
-                if(content.IsDirectory)
-                {
-                    LOG.LogError("The plugin contains a directory. This is not allowed.");
+                case NoPlugin noPlugin when noPlugin.Issues.Any():
+                    LOG.LogError($"Was not able to load plugin: '{pluginMainFile}'. Reason: {noPlugin.Issues.First()}");
                     continue;
-                }
                 
-                await CopyPluginFile(content, metaData);
+                case NoPlugin:
+                    LOG.LogError($"Was not able to load plugin: '{pluginMainFile}'. Reason: Unknown.");
+                    continue;
+                
+                case { IsValid: false }:
+                    LOG.LogError($"Was not able to load plugin '{pluginMainFile}', because the Lua code is not a valid AI Studio plugin. There are {plugin.Issues.Count()} issues to fix.");
+                    #if DEBUG
+                    foreach (var pluginIssue in plugin.Issues)
+                        LOG.LogError($"Plugin issue: {pluginIssue}");
+                    #endif
+                    continue;
+
+                case { IsMaintained: false }:
+                    LOG.LogWarning($"The plugin '{pluginMainFile}' is not maintained anymore. Please consider to disable it.");
+                    break;
             }
-        }
-        catch
-        {
-            LOG.LogError($"Was not able to ensure the plugin: {plugin}");
-        }
-    }
-
-    private static async Task CopyPluginFile(IFileInfo resourceInfo, InternalPluginData metaData)
-    {
-        await using var inputStream = resourceInfo.CreateReadStream();
-        
-        var pluginsRoot = Path.Join(DATA_DIR, "plugins");
-        var pluginTypeBasePath = Path.Join(pluginsRoot, metaData.Type.GetDirectory());
-        
-        if (!Directory.Exists(pluginsRoot))
-            Directory.CreateDirectory(pluginsRoot);
-        
-        if (!Directory.Exists(pluginTypeBasePath))
-            Directory.CreateDirectory(pluginTypeBasePath);
-        
-        var pluginPath = Path.Join(pluginTypeBasePath, metaData.ResourceName);
-        if (!Directory.Exists(pluginPath))
-            Directory.CreateDirectory(pluginPath);
-        
-        var pluginFilePath = Path.Join(pluginPath, resourceInfo.Name);
             
-        await using var outputStream = File.Create(pluginFilePath);
-        await inputStream.CopyToAsync(outputStream);
+            LOG.LogInformation($"Successfully loaded plugin: '{pluginMainFile}' (Id='{plugin.Id}', Type='{plugin.Type}', Name='{plugin.Name}', Version='{plugin.Version}', Authors='{string.Join(", ", plugin.Authors)}')");
+            AVAILABLE_PLUGINS.Add(new PluginMetadata(plugin));
+        }
     }
 
-    public static async Task LoadAll()
-    {
-        
-    }
-    
-    public static async Task<PluginBase> Load(string path, string code, CancellationToken cancellationToken = default)
+    private static async Task<PluginBase> Load(string pluginPath, string code, CancellationToken cancellationToken = default)
     {
         if(ForbiddenPlugins.Check(code) is { IsForbidden: true } forbiddenState)
             return new NoPlugin($"This plugin is forbidden: {forbiddenState.Message}");
         
         var state = LuaState.Create();
+        
+        // Add the module loader so that the plugin can load other Lua modules:
+        state.ModuleLoader = new PluginLoader(pluginPath);
+        
+        // Add some useful libraries:
+        state.OpenModuleLibrary();
+        state.OpenStringLibrary();
+        state.OpenTableLibrary();
+        state.OpenMathLibrary();
+        state.OpenBitwiseLibrary();
+        state.OpenCoroutineLibrary();
 
         try
         {
@@ -105,6 +114,10 @@ public static class PluginFactory
         {
             return new NoPlugin($"Was not able to parse the plugin: {e.Message}");
         }
+        catch (LuaRuntimeException e)
+        {
+            return new NoPlugin($"Was not able to run the plugin: {e.Message}");
+        }
         
         if (!state.Environment["TYPE"].TryRead<string>(out var typeText))
             return new NoPlugin("TYPE does not exist or is not a valid string.");
@@ -115,9 +128,10 @@ public static class PluginFactory
         if(type is PluginType.NONE)
             return new NoPlugin($"TYPE is not a valid plugin type. Valid types are: {CommonTools.GetAllEnumValues<PluginType>()}");
         
+        var isInternal = pluginPath.StartsWith(INTERNAL_PLUGINS_ROOT, StringComparison.OrdinalIgnoreCase);
         return type switch
         {
-            PluginType.LANGUAGE => new PluginLanguage(path, state, type),
+            PluginType.LANGUAGE => new PluginLanguage(isInternal, state, type),
             
             _ => new NoPlugin("This plugin type is not supported yet. Please try again with a future version of AI Studio.")
         };

app/MindWork AI Studio/Tools/PluginSystem/PluginLanguage.cs

@@ -8,7 +8,7 @@ public sealed class PluginLanguage : PluginBase, ILanguagePlugin
     
     private ILanguagePlugin? baseLanguage;
     
-    public PluginLanguage(string path, LuaState state, PluginType type) : base(path, state, type)
+    public PluginLanguage(bool isInternal, LuaState state, PluginType type) : base(isInternal, state, type)
     {
         if (this.TryInitUITextContent(out var issue, out var readContent))
             this.content = readContent;

app/MindWork AI Studio/Tools/PluginSystem/PluginMetadata.cs

@@ -0,0 +1,50 @@
+namespace AIStudio.Tools.PluginSystem;
+
+public sealed class PluginMetadata(PluginBase plugin) : IPluginMetadata
+{
+    #region Implementation of IPluginMetadata
+
+    /// <inheritdoc />
+    public string IconSVG { get; } = plugin.IconSVG;
+    
+    /// <inheritdoc />
+    public PluginType Type { get; } = plugin.Type;
+
+    /// <inheritdoc />
+    public Guid Id { get; } = plugin.Id;
+
+    /// <inheritdoc />
+    public string Name { get; } = plugin.Name;
+
+    /// <inheritdoc />
+    public string Description { get; } = plugin.Description;
+
+    /// <inheritdoc />
+    public PluginVersion Version { get; } = plugin.Version;
+
+    /// <inheritdoc />
+    public string[] Authors { get; } = plugin.Authors;
+
+    /// <inheritdoc />
+    public string SupportContact { get; } = plugin.SupportContact;
+
+    /// <inheritdoc />
+    public string SourceURL { get; } = plugin.SourceURL;
+
+    /// <inheritdoc />
+    public PluginCategory[] Categories { get; } = plugin.Categories;
+
+    /// <inheritdoc />
+    public PluginTargetGroup[] TargetGroups { get; } = plugin.TargetGroups;
+
+    /// <inheritdoc />
+    public bool IsMaintained { get; } = plugin.IsMaintained;
+
+    /// <inheritdoc />
+    public string DeprecationMessage { get; } = plugin.DeprecationMessage;
+
+    /// <inheritdoc />
+    public bool IsInternal { get; } = plugin.IsInternal;
+
+    #endregion
+}