feat(plugins): complete Campaign LA5 cross-host hosting

src/AcDream.App/Plugins/AppPluginHost.cs

@@ -18,6 +18,7 @@ public sealed class AppPluginHost : IPluginHost
         Ui = ui;
     }
 
+    public bool HasUi => true;
     public IPluginLogger Log { get; }
     public IGameState State { get; }
     public IEvents Events { get; }

src/AcDream.App/Plugins/GraphicalPluginSession.cs

@@ -0,0 +1,78 @@
+using AcDream.Core.Plugins;
+using AcDream.Platform;
+using AcDream.Plugin.Abstractions;
+using AcDream.Runtime.Session;
+
+namespace AcDream.App.Plugins;
+
+/// <summary>
+/// Graphical-host composition for one plugin set. The shared
+/// <see cref="PluginSession"/> owns discovery and collectible lifetimes; this
+/// adapter supplies the graphical roots and translates outcomes into the
+/// launcher status stream.
+/// </summary>
+internal sealed class GraphicalPluginSession : IDisposable
+{
+    private readonly PluginSession _plugins;
+
+    private GraphicalPluginSession(PluginSession plugins)
+    {
+        _plugins = plugins;
+    }
+
+    internal int LoadedCount => _plugins.LoadedCount;
+
+    internal IReadOnlyList<WeakReference> CaptureLoadContextWeakReferences() =>
+        _plugins.CaptureLoadContextWeakReferences();
+
+    internal static GraphicalPluginSession Start(
+        ApplicationPathSet paths,
+        IReadOnlyList<string>? allowList,
+        string sessionId,
+        IPluginHost host,
+        SessionStatusWriter statusWriter)
+    {
+        ArgumentNullException.ThrowIfNull(paths);
+        ArgumentException.ThrowIfNullOrWhiteSpace(sessionId);
+        ArgumentNullException.ThrowIfNull(host);
+        ArgumentNullException.ThrowIfNull(statusWriter);
+
+        var plugins = new PluginSession(
+            host,
+            status => Report(statusWriter, sessionId, status));
+        try
+        {
+            plugins.Start(
+            [
+                Path.Combine(AppContext.BaseDirectory, "plugins"),
+                paths.PluginsDirectory,
+            ],
+            allowList);
+            return new GraphicalPluginSession(plugins);
+        }
+        catch
+        {
+            plugins.Dispose();
+            throw;
+        }
+    }
+
+    public void Dispose() => _plugins.Dispose();
+
+    private static void Report(
+        SessionStatusWriter writer,
+        string sessionId,
+        PluginSessionStatus status)
+    {
+        if (status.Kind == PluginSessionStatusKind.Loaded)
+        {
+            writer.PluginLoaded(sessionId, status.Plugin);
+            return;
+        }
+
+        writer.PluginFailed(
+            sessionId,
+            status.Plugin,
+            status.Error ?? "plugin failed");
+    }
+}

src/AcDream.App/Program.cs

@@ -4,7 +4,6 @@ using AcDream.App.Credentials;
 using AcDream.App.Plugins;
 using AcDream.App.Platform;
 using AcDream.App.Rendering;
-using AcDream.Core.Plugins;
 using AcDream.Platform;
 using Serilog;
 
@@ -162,76 +161,15 @@ var host = new AppPluginHost(
     worldEvents,
     window.Selection,
     uiRegistry);
-
-var loaded = new List<LoadedPlugin>();
-var loadedPluginIds = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
-StringComparer pathComparer =
-    graphicalPlatform.OperatingSystem
-        == GraphicalHostOperatingSystem.Windows
-        ? StringComparer.OrdinalIgnoreCase
-        : StringComparer.Ordinal;
-string[] pluginRoots =
-[
-    .. new[]
-    {
-        Path.Combine(AppContext.BaseDirectory, "plugins"),
-        applicationPaths.PluginsDirectory,
-    }.Distinct(pathComparer),
-];
-
-foreach (string pluginsDir in pluginRoots)
-{
-    Log.Information("scanning plugins in {PluginsDir}", pluginsDir);
-    foreach (var result in PluginDiscovery.Scan(pluginsDir))
-    {
-        if (!result.Success)
-        {
-            Log.Warning(
-                "plugin discovery failed for {Dir}: {Error}",
-                result.PluginDirectory,
-                result.Error);
-            continue;
-        }
-
-        if (loadedPluginIds.Contains(result.Manifest!.Id))
-        {
-            Log.Warning(
-                "skipping duplicate plugin id {Id} from {Dir}",
-                result.Manifest.Id,
-                result.PluginDirectory);
-            continue;
-        }
-
-        var loadResult = PluginLoader.Load(
-            result.PluginDirectory,
-            result.Manifest,
-            host);
-        if (!loadResult.Success)
-        {
-            Log.Warning(
-                "plugin load failed for {Id}: {Error}",
-                result.Manifest.Id,
-                loadResult.Error);
-            continue;
-        }
-
-        loadedPluginIds.Add(result.Manifest.Id);
-        loaded.Add(loadResult);
-        Log.Information(
-            "loaded plugin {Id} ({DisplayName})",
-            result.Manifest.Id,
-            result.Manifest.DisplayName);
-    }
-}
+using var pluginSession = GraphicalPluginSession.Start(
+    applicationPaths,
+    runtimeOptions.Plugins,
+    runtimeOptions.SessionId ?? "app",
+    host,
+    window.StatusWriter);
 
 try
 {
-    foreach (var plugin in loaded)
-    {
-        try { plugin.Plugin!.Enable(); }
-        catch (Exception ex) { Log.Error(ex, "plugin enable failed: {Id}", plugin.Manifest.Id); }
-    }
-
     try
     {
         window.Run();
@@ -244,11 +182,7 @@ try
 }
 finally
 {
-    foreach (var plugin in loaded)
-    {
-        try { plugin.Plugin!.Disable(); }
-        catch (Exception ex) { Log.Error(ex, "plugin disable failed: {Id}", plugin.Manifest.Id); }
-    }
+    pluginSession.Dispose();
     Log.CloseAndFlush();
 }
 

src/AcDream.App/Rendering/GameWindow.cs

@@ -362,6 +362,7 @@ public sealed class GameWindow :
     private RuntimeActionState _runtimeActions => _runtime.ActionOwner;
     public AcDream.Core.Selection.SelectionState Selection =>
         _runtimeActions.Selection;
+    internal SessionStatusWriter StatusWriter => _statusWriter;
     public AcDream.Core.Chat.ChatLog Chat => _runtimeCommunication.Chat;
     public AcDream.Core.Chat.TurbineChatState TurbineChat =>
         _runtimeCommunication.TurbineChat;