Untangling the mods.

Penumbra/Mods/Mod.cs

@@ -1,6 +1,11 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
+using OtterGui;
 using OtterGui.Classes;
+using Penumbra.Import;
+using Penumbra.Meta;
+using Penumbra.String.Classes;
 
 namespace Penumbra.Mods;
 
@@ -29,7 +34,61 @@ public sealed partial class Mod : IMod
     public bool                  Favorite   { get; internal set; } = false;
 
 
+    // Options
+    public readonly SubMod          Default;
+    public readonly List<IModGroup> Groups = new();
+
+    ISubMod IMod.Default
+        => Default;
+
+    IReadOnlyList<IModGroup> IMod.Groups
+        => Groups;
+
+    public IEnumerable<SubMod> AllSubMods
+        => Groups.SelectMany(o => o).OfType<SubMod>().Prepend(Default);
+
+    public List<FullPath> FindUnusedFiles()
+    {
+        var modFiles = AllSubMods.SelectMany(o => o.Files)
+            .Select(p => p.Value)
+            .ToHashSet();
+        return ModPath.EnumerateDirectories()
+            .Where(d => !d.IsHidden())
+            .SelectMany(FileExtensions.EnumerateNonHiddenFiles)
+            .Select(f => new FullPath(f))
+            .Where(f => !modFiles.Contains(f))
+            .ToList();
+    }
+
     // Access
     public override string ToString()
         => Name.Text;
+
+    public void WriteAllTexToolsMeta(MetaFileManager manager)
+    {
+        try
+        {
+            TexToolsMeta.WriteTexToolsMeta(manager, Default.Manipulations, ModPath);
+            foreach (var group in Groups)
+            {
+                var dir = ModCreator.NewOptionDirectory(ModPath, group.Name);
+                if (!dir.Exists)
+                    dir.Create();
+
+                foreach (var option in group.OfType<SubMod>())
+                {
+                    var optionDir = ModCreator.NewOptionDirectory(dir, option.Name);
+                    if (!optionDir.Exists)
+                        optionDir.Create();
+
+                    TexToolsMeta.WriteTexToolsMeta(manager, option.Manipulations, optionDir);
+                }
+            }
+        }
+        catch (Exception e)
+        {
+            Penumbra.Log.Error($"Error writing TexToolsMeta:\n{e}");
+        }
+    }
+
 }