Add Launching IPC Event. API 5.8

Penumbra.Api

@@ -1 +1 @@
-Subproject commit 2cbf4bace53a5749d3eab1ff03025a6e6bd9fc37
+Subproject commit bd56d82816b8366e19dddfb2dc7fd7f167e264ee

Penumbra/Api/Api/PenumbraApi.cs

@@ -16,13 +16,16 @@ public class PenumbraApi(
     TemporaryApi temporary,
     UiApi ui) : IDisposable, IApiService, IPenumbraApi
 {
+    public const int BreakingVersion = 5;
+    public const int FeatureVersion  = 8;
+
     public void Dispose()
     {
         Valid = false;
     }
 
     public (int Breaking, int Feature) ApiVersion
-        => (5, 7);
+        => (BreakingVersion, FeatureVersion);
 
     public bool                     Valid        { get; private set; } = true;
     public IPenumbraApiCollection   Collection   { get; }              = collection;

Penumbra/Api/IpcLaunchingProvider.cs

@@ -0,0 +1,28 @@
+using Dalamud.Plugin;
+using OtterGui.Log;
+using OtterGui.Services;
+using Penumbra.Api.Api;
+using Serilog.Events;
+
+namespace Penumbra.Api;
+
+public sealed class IpcLaunchingProvider : IApiService
+{
+    public IpcLaunchingProvider(IDalamudPluginInterface pi, Logger log)
+    {
+        try
+        {
+            using var subscriber = log.MainLogger.IsEnabled(LogEventLevel.Debug)
+                ? IpcSubscribers.Launching.Subscriber(pi,
+                    (major, minor) => log.Debug($"[IPC] Invoked Penumbra.Launching IPC with API Version {major}.{minor}."))
+                : null;
+
+            using var provider = IpcSubscribers.Launching.Provider(pi);
+            provider.Invoke(PenumbraApi.BreakingVersion, PenumbraApi.FeatureVersion);
+        }
+        catch (Exception ex)
+        {
+            log.Error($"[IPC] Could not invoke Penumbra.Launching IPC:\n{ex}");
+        }
+    }
+}

Penumbra/Penumbra.cs

@@ -58,6 +58,8 @@ public class Penumbra : IDalamudPlugin
         {
             HookOverrides.Instance = HookOverrides.LoadFile(pluginInterface);
             _services              = StaticServiceManager.CreateProvider(this, pluginInterface, Log);
+            // Invoke the IPC Penumbra.Launching method before any hooks or other services are created.
+            _services.GetService<IpcLaunchingProvider>();
             Messager               = _services.GetService<MessageService>();
             _validityChecker       = _services.GetService<ValidityChecker>();
             _services.EnsureRequiredServices();