Some renaming

Penumbra/Collections/Cache/CollectionCacheManager.cs

@@ -7,6 +7,7 @@ using System.Linq;
 using System.Threading.Tasks;
 using Penumbra.Api;
 using Penumbra.Api.Enums;
+using Penumbra.Collections.Cache;
 using Penumbra.Interop.Services;
 using Penumbra.Mods;
 using Penumbra.Mods.Manager;
@@ -20,6 +21,7 @@ public class CollectionCacheManager : IDisposable, IReadOnlyDictionary<ModCollec
     private readonly CommunicatorService _communicator;
     private readonly CharacterUtility    _characterUtility;
 
+    private readonly List<(ModCollectionCache, int ChangeCounter)>
     private readonly Dictionary<ModCollection, ModCollectionCache> _cache = new();
 
     public int Count

Penumbra/Collections/Cache/ModCollectionCache.cs

@@ -0,0 +1,485 @@
+using OtterGui;
+using OtterGui.Classes;
+using Penumbra.Meta.Manager;
+using Penumbra.Meta.Manipulations;
+using Penumbra.Mods;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using Penumbra.Api.Enums;
+using Penumbra.String.Classes;
+using Penumbra.Mods.Manager;
+
+namespace Penumbra.Collections.Cache;
+
+public record struct ModPath(IMod Mod, FullPath Path);
+public record ModConflicts(IMod Mod2, List<object> Conflicts, bool HasPriority, bool Solved);
+
+/// <summary>
+/// The Cache contains all required temporary data to use a collection.
+/// It will only be setup if a collection gets activated in any way.
+/// </summary>
+public class ModCollectionCache : IDisposable
+{
+    private readonly ModCollection _collection;
+    private readonly SortedList<string, (SingleArray<IMod>, object?)> _changedItems = new();
+    public readonly Dictionary<Utf8GamePath, ModPath> ResolvedFiles = new();
+    public readonly MetaManager MetaManipulations;
+    private readonly Dictionary<IMod, SingleArray<ModConflicts>> _conflicts = new();
+
+    public IEnumerable<SingleArray<ModConflicts>> AllConflicts
+        => _conflicts.Values;
+
+    public SingleArray<ModConflicts> Conflicts(IMod mod)
+        => _conflicts.TryGetValue(mod, out var c) ? c : new SingleArray<ModConflicts>();
+
+    private int _changedItemsSaveCounter = -1;
+
+    // Obtain currently changed items. Computes them if they haven't been computed before.
+    public IReadOnlyDictionary<string, (SingleArray<IMod>, object?)> ChangedItems
+    {
+        get
+        {
+            SetChangedItems();
+            return _changedItems;
+        }
+    }
+
+    // The cache reacts through events on its collection changing.
+    public ModCollectionCache(ModCollection collection)
+    {
+        _collection = collection;
+        MetaManipulations = new MetaManager(_collection);
+    }
+
+    public void Dispose()
+    {
+        MetaManipulations.Dispose();
+    }
+
+    // Resolve a given game path according to this collection.
+    public FullPath? ResolvePath(Utf8GamePath gameResourcePath)
+    {
+        if (!ResolvedFiles.TryGetValue(gameResourcePath, out var candidate))
+        {
+            return null;
+        }
+
+        if (candidate.Path.InternalName.Length > Utf8GamePath.MaxGamePathLength
+        || candidate.Path.IsRooted && !candidate.Path.Exists)
+        {
+            return null;
+        }
+
+        return candidate.Path;
+    }
+
+    // For a given full path, find all game paths that currently use this file.
+    public IEnumerable<Utf8GamePath> ReverseResolvePath(FullPath localFilePath)
+    {
+        var needle = localFilePath.FullName.ToLower();
+        if (localFilePath.IsRooted)
+        {
+            needle = needle.Replace('/', '\\');
+        }
+
+        var iterator = ResolvedFiles
+            .Where(f => string.Equals(f.Value.Path.FullName, needle, StringComparison.OrdinalIgnoreCase))
+            .Select(kvp => kvp.Key);
+
+        // For files that are not rooted, try to add themselves.
+        if (!localFilePath.IsRooted && Utf8GamePath.FromString(localFilePath.FullName, out var utf8))
+        {
+            iterator = iterator.Prepend(utf8);
+        }
+
+        return iterator;
+    }
+
+    // Reverse resolve multiple paths at once for efficiency.
+    public HashSet<Utf8GamePath>[] ReverseResolvePaths(IReadOnlyCollection<string> fullPaths)
+    {
+        if (fullPaths.Count == 0)
+            return Array.Empty<HashSet<Utf8GamePath>>();
+
+        var ret = new HashSet<Utf8GamePath>[fullPaths.Count];
+        var dict = new Dictionary<FullPath, int>(fullPaths.Count);
+        foreach (var (path, idx) in fullPaths.WithIndex())
+        {
+            dict[new FullPath(path)] = idx;
+            ret[idx] = !Path.IsPathRooted(path) && Utf8GamePath.FromString(path, out var utf8)
+                ? new HashSet<Utf8GamePath> { utf8 }
+                : new HashSet<Utf8GamePath>();
+        }
+
+        foreach (var (game, full) in ResolvedFiles)
+        {
+            if (dict.TryGetValue(full.Path, out var idx))
+            {
+                ret[idx].Add(game);
+            }
+        }
+
+        return ret;
+    }
+
+    public void FullRecalculation(bool isDefault)
+    {
+        ResolvedFiles.Clear();
+        MetaManipulations.Reset();
+        _conflicts.Clear();
+
+        // Add all forced redirects.
+        foreach (var tempMod in Penumbra.TempMods.ModsForAllCollections.Concat(
+                    Penumbra.TempMods.Mods.TryGetValue(_collection, out var list) ? list : Array.Empty<TemporaryMod>()))
+        {
+            AddMod(tempMod, false);
+        }
+
+        foreach (var mod in Penumbra.ModManager)
+        {
+            AddMod(mod, false);
+        }
+
+        AddMetaFiles();
+
+        ++_collection.ChangeCounter;
+
+        if (isDefault && Penumbra.CharacterUtility.Ready && Penumbra.Config.EnableMods)
+        {
+            Penumbra.ResidentResources.Reload();
+            MetaManipulations.SetFiles();
+        }
+    }
+
+    public void ReloadMod(IMod mod, bool addMetaChanges)
+    {
+        RemoveMod(mod, addMetaChanges);
+        AddMod(mod, addMetaChanges);
+    }
+
+    public void RemoveMod(IMod mod, bool addMetaChanges)
+    {
+        var conflicts = Conflicts(mod);
+
+        foreach (var (path, _) in mod.AllSubMods.SelectMany(s => s.Files.Concat(s.FileSwaps)))
+        {
+            if (!ResolvedFiles.TryGetValue(path, out var modPath))
+            {
+                continue;
+            }
+
+            if (modPath.Mod == mod)
+            {
+                ResolvedFiles.Remove(path);
+            }
+        }
+
+        foreach (var manipulation in mod.AllSubMods.SelectMany(s => s.Manipulations))
+        {
+            if (MetaManipulations.TryGetValue(manipulation, out var registeredMod) && registeredMod == mod)
+            {
+                MetaManipulations.RevertMod(manipulation);
+            }
+        }
+
+        _conflicts.Remove(mod);
+        foreach (var conflict in conflicts)
+        {
+            if (conflict.HasPriority)
+            {
+                ReloadMod(conflict.Mod2, false);
+            }
+            else
+            {
+                var newConflicts = Conflicts(conflict.Mod2).Remove(c => c.Mod2 == mod);
+                if (newConflicts.Count > 0)
+                {
+                    _conflicts[conflict.Mod2] = newConflicts;
+                }
+                else
+                {
+                    _conflicts.Remove(conflict.Mod2);
+                }
+            }
+        }
+
+        if (addMetaChanges)
+        {
+            ++_collection.ChangeCounter;
+            if (_collection == Penumbra.CollectionManager.Active.Default && Penumbra.CharacterUtility.Ready && Penumbra.Config.EnableMods)
+            {
+                Penumbra.ResidentResources.Reload();
+                MetaManipulations.SetFiles();
+            }
+        }
+    }
+
+
+    // Add all files and possibly manipulations of a given mod according to its settings in this collection.
+    public void AddMod(IMod mod, bool addMetaChanges)
+    {
+        if (mod.Index >= 0)
+        {
+            var settings = _collection[mod.Index].Settings;
+            if (settings is not { Enabled: true })
+            {
+                return;
+            }
+
+            foreach (var (group, groupIndex) in mod.Groups.WithIndex().OrderByDescending(g => g.Item1.Priority))
+            {
+                if (group.Count == 0)
+                {
+                    continue;
+                }
+
+                var config = settings.Settings[groupIndex];
+                switch (group.Type)
+                {
+                    case GroupType.Single:
+                        AddSubMod(group[(int)config], mod);
+                        break;
+                    case GroupType.Multi:
+                        {
+                            foreach (var (option, _) in group.WithIndex()
+                                        .Where(p => (1 << p.Item2 & config) != 0)
+                                        .OrderByDescending(p => group.OptionPriority(p.Item2)))
+                            {
+                                AddSubMod(option, mod);
+                            }
+
+                            break;
+                        }
+                }
+            }
+        }
+
+        AddSubMod(mod.Default, mod);
+
+        if (addMetaChanges)
+        {
+            ++_collection.ChangeCounter;
+            if (Penumbra.ModCaches[mod.Index].TotalManipulations > 0)
+            {
+                AddMetaFiles();
+            }
+
+            if (_collection == Penumbra.CollectionManager.Active.Default && Penumbra.CharacterUtility.Ready && Penumbra.Config.EnableMods)
+            {
+                Penumbra.ResidentResources.Reload();
+                MetaManipulations.SetFiles();
+            }
+        }
+    }
+
+    // Add all files and possibly manipulations of a specific submod
+    private void AddSubMod(ISubMod subMod, IMod parentMod)
+    {
+        foreach (var (path, file) in subMod.Files.Concat(subMod.FileSwaps))
+        {
+            AddFile(path, file, parentMod);
+        }
+
+        foreach (var manip in subMod.Manipulations)
+        {
+            AddManipulation(manip, parentMod);
+        }
+    }
+
+    // Add a specific file redirection, handling potential conflicts.
+    // For different mods, higher mod priority takes precedence before option group priority,
+    // which takes precedence before option priority, which takes precedence before ordering.
+    // Inside the same mod, conflicts are not recorded.
+    private void AddFile(Utf8GamePath path, FullPath file, IMod mod)
+    {
+        if (!ModCollection.CheckFullPath(path, file))
+        {
+            return;
+        }
+
+        if (ResolvedFiles.TryAdd(path, new ModPath(mod, file)))
+        {
+            return;
+        }
+
+        var modPath = ResolvedFiles[path];
+        // Lower prioritized option in the same mod.
+        if (mod == modPath.Mod)
+        {
+            return;
+        }
+
+        if (AddConflict(path, mod, modPath.Mod))
+        {
+            ResolvedFiles[path] = new ModPath(mod, file);
+        }
+    }
+
+
+    // Remove all empty conflict sets for a given mod with the given conflicts.
+    // If transitive is true, also removes the corresponding version of the other mod.
+    private void RemoveEmptyConflicts(IMod mod, SingleArray<ModConflicts> oldConflicts, bool transitive)
+    {
+        var changedConflicts = oldConflicts.Remove(c =>
+        {
+            if (c.Conflicts.Count == 0)
+            {
+                if (transitive)
+                {
+                    RemoveEmptyConflicts(c.Mod2, Conflicts(c.Mod2), false);
+                }
+
+                return true;
+            }
+
+            return false;
+        });
+        if (changedConflicts.Count == 0)
+        {
+            _conflicts.Remove(mod);
+        }
+        else
+        {
+            _conflicts[mod] = changedConflicts;
+        }
+    }
+
+    // Add a new conflict between the added mod and the existing mod.
+    // Update all other existing conflicts between the existing mod and other mods if necessary.
+    // Returns if the added mod takes priority before the existing mod.
+    private bool AddConflict(object data, IMod addedMod, IMod existingMod)
+    {
+        var addedPriority = addedMod.Index >= 0 ? _collection[addedMod.Index].Settings!.Priority : addedMod.Priority;
+        var existingPriority = existingMod.Index >= 0 ? _collection[existingMod.Index].Settings!.Priority : existingMod.Priority;
+
+        if (existingPriority < addedPriority)
+        {
+            var tmpConflicts = Conflicts(existingMod);
+            foreach (var conflict in tmpConflicts)
+            {
+                if (data is Utf8GamePath path && conflict.Conflicts.RemoveAll(p => p is Utf8GamePath x && x.Equals(path)) > 0
+                || data is MetaManipulation meta && conflict.Conflicts.RemoveAll(m => m is MetaManipulation x && x.Equals(meta)) > 0)
+                {
+                    AddConflict(data, addedMod, conflict.Mod2);
+                }
+            }
+
+            RemoveEmptyConflicts(existingMod, tmpConflicts, true);
+        }
+
+        var addedConflicts = Conflicts(addedMod);
+        var existingConflicts = Conflicts(existingMod);
+        if (addedConflicts.FindFirst(c => c.Mod2 == existingMod, out var oldConflicts))
+        {
+            // Only need to change one list since both conflict lists refer to the same list.
+            oldConflicts.Conflicts.Add(data);
+        }
+        else
+        {
+            // Add the same conflict list to both conflict directions.
+            var conflictList = new List<object> { data };
+            _conflicts[addedMod] = addedConflicts.Append(new ModConflicts(existingMod, conflictList, existingPriority < addedPriority,
+                existingPriority != addedPriority));
+            _conflicts[existingMod] = existingConflicts.Append(new ModConflicts(addedMod, conflictList,
+                existingPriority >= addedPriority,
+                existingPriority != addedPriority));
+        }
+
+        return existingPriority < addedPriority;
+    }
+
+    // Add a specific manipulation, handling potential conflicts.
+    // For different mods, higher mod priority takes precedence before option group priority,
+    // which takes precedence before option priority, which takes precedence before ordering.
+    // Inside the same mod, conflicts are not recorded.
+    private void AddManipulation(MetaManipulation manip, IMod mod)
+    {
+        if (!MetaManipulations.TryGetValue(manip, out var existingMod))
+        {
+            MetaManipulations.ApplyMod(manip, mod);
+            return;
+        }
+
+        // Lower prioritized option in the same mod.
+        if (mod == existingMod)
+        {
+            return;
+        }
+
+        if (AddConflict(manip, mod, existingMod))
+        {
+            MetaManipulations.ApplyMod(manip, mod);
+        }
+    }
+
+
+    // Add all necessary meta file redirects.
+    private void AddMetaFiles()
+        => MetaManipulations.SetImcFiles();
+
+    // Increment the counter to ensure new files are loaded after applying meta changes.
+    private void IncrementCounter()
+    {
+        ++_collection.ChangeCounter;
+        Penumbra.CharacterUtility.LoadingFinished -= IncrementCounter;
+    }
+
+
+    // Identify and record all manipulated objects for this entire collection.
+    private void SetChangedItems()
+    {
+        if (_changedItemsSaveCounter == _collection.ChangeCounter)
+        {
+            return;
+        }
+
+        try
+        {
+            _changedItemsSaveCounter = _collection.ChangeCounter;
+            _changedItems.Clear();
+            // Skip IMCs because they would result in far too many false-positive items,
+            // since they are per set instead of per item-slot/item/variant.
+            var identifier = Penumbra.Identifier;
+            var items = new SortedList<string, object?>(512);
+
+            void AddItems(IMod mod)
+            {
+                foreach (var (name, obj) in items)
+                {
+                    if (!_changedItems.TryGetValue(name, out var data))
+                    {
+                        _changedItems.Add(name, (new SingleArray<IMod>(mod), obj));
+                    }
+                    else if (!data.Item1.Contains(mod))
+                    {
+                        _changedItems[name] = (data.Item1.Append(mod), obj is int x && data.Item2 is int y ? x + y : obj);
+                    }
+                    else if (obj is int x && data.Item2 is int y)
+                    {
+                        _changedItems[name] = (data.Item1, x + y);
+                    }
+                }
+
+                items.Clear();
+            }
+
+            foreach (var (resolved, modPath) in ResolvedFiles.Where(file => !file.Key.Path.EndsWith("imc"u8)))
+            {
+                identifier.Identify(items, resolved.ToString());
+                AddItems(modPath.Mod);
+            }
+
+            foreach (var (manip, mod) in MetaManipulations)
+            {
+                ModCacheManager.ComputeChangedItems(identifier, items, manip);
+                AddItems(mod);
+            }
+        }
+        catch (Exception e)
+        {
+            Penumbra.Log.Error($"Unknown Error:\n{e}");
+        }
+    }
+}

Penumbra/Collections/Manager/CollectionManager.cs

@@ -19,6 +19,4 @@ public class CollectionManager
         Temp         = temp;
         Editor       = editor;
     }
-
-
 }

Penumbra/Collections/Manager/IndividualCollections.Files.cs

@@ -4,7 +4,6 @@ using System.Linq;
 using Dalamud.Game.ClientState.Objects.Enums;
 using Dalamud.Interface.Internal.Notifications;
 using Newtonsoft.Json.Linq;
-using Penumbra.Collections.Manager;
 using Penumbra.GameData.Actors;
 using Penumbra.String;
 

Penumbra/Collections/Manager/ModCollectionMigration.cs

@@ -4,20 +4,20 @@ using System.Linq;
 using Penumbra.Mods.Manager;
 using Penumbra.Util;
 
-namespace Penumbra.Collections;
+namespace Penumbra.Collections.Manager;
 
 /// <summary> Migration to convert ModCollections from older versions to newer. </summary>
 internal static class ModCollectionMigration
 {
-    /// <summary> Migrate a mod collection to the current version. </summary>
+    /// <summary> Migrate a mod collection to the current version. </summary>
     public static void Migrate(SaveService saver, ModStorage mods, int version, ModCollection collection)
-    {
+    {
         var changes = MigrateV0ToV1(collection, ref version);
         if (changes)
             saver.ImmediateSave(new ModCollectionSave(mods, collection));
     }
-
-    /// <summary> Migrate a mod collection from Version 0 to Version 1, which introduced support for inheritance. </summary>
+
+    /// <summary> Migrate a mod collection from Version 0 to Version 1, which introduced support for inheritance. </summary>
     private static bool MigrateV0ToV1(ModCollection collection, ref int version)
     {
         if (version > 0)
@@ -38,10 +38,10 @@ internal static class ModCollectionMigration
         return true;
     }
 
-    /// <summary> We treat every completely defaulted setting as inheritance-ready. </summary>
+    /// <summary> We treat every completely defaulted setting as inheritance-ready. </summary>
     private static bool SettingIsDefaultV0(ModSettings.SavedSettings setting)
-        => setting is { Enabled: false, Priority: 0 } && setting.Settings.Values.All(s => s == 0);
-    
+        => setting is { Enabled: false, Priority: 0 } && setting.Settings.Values.All(s => s == 0);
+
     /// <inheritdoc cref="SettingIsDefaultV0(ModSettings.SavedSettings)"/>
     private static bool SettingIsDefaultV0(ModSettings? setting)
         => setting is { Enabled: false, Priority: 0 } && setting.Settings.All(s => s == 0);

Penumbra/Collections/ModCollection.Cache.Access.cs

@@ -13,7 +13,8 @@ using Penumbra.Meta.Files;
 using Penumbra.Meta.Manipulations;
 using Penumbra.String.Classes;
 using CharacterUtility = Penumbra.Interop.Services.CharacterUtility;
-
+using Penumbra.Collections.Cache;
+
 namespace Penumbra.Collections;
 
 public partial class ModCollection
@@ -24,8 +25,10 @@ public partial class ModCollection
     public bool HasCache
         => _cache != null;
 
-    // Count the number of changes of the effective file list.
-    // This is used for material and imc changes.
+    /// <summary>
+    /// Count the number of changes of the effective file list.
+    /// This is used for material and imc changes.
+    /// </summary>
     public int ChangeCounter { get; internal set; }
 
     // Only create, do not update. 

Penumbra/Collections/ModCollection.Cache.cs

@@ -1,485 +0,0 @@
-using OtterGui;
-using OtterGui.Classes;
-using Penumbra.Meta.Manager;
-using Penumbra.Meta.Manipulations;
-using Penumbra.Mods;
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using Penumbra.Api.Enums;
-using Penumbra.String.Classes;
-using Penumbra.Mods.Manager;
-
-namespace Penumbra.Collections;
-
-public record struct ModPath( IMod Mod, FullPath Path );
-public record ModConflicts( IMod Mod2, List< object > Conflicts, bool HasPriority, bool Solved );
-
-/// <summary>
-/// The Cache contains all required temporary data to use a collection.
-/// It will only be setup if a collection gets activated in any way.
-/// </summary>
-public class ModCollectionCache : IDisposable
-{
-    private readonly ModCollection                                        _collection;
-    private readonly SortedList< string, (SingleArray< IMod >, object?) > _changedItems = new();
-    public readonly  Dictionary< Utf8GamePath, ModPath >                  ResolvedFiles = new();
-    public readonly  MetaManager                                          MetaManipulations;
-    private readonly Dictionary< IMod, SingleArray< ModConflicts > >      _conflicts = new();
-
-    public IEnumerable< SingleArray< ModConflicts > > AllConflicts
-        => _conflicts.Values;
-
-    public SingleArray< ModConflicts > Conflicts( IMod mod )
-        => _conflicts.TryGetValue( mod, out var c ) ? c : new SingleArray< ModConflicts >();
-
-    private int _changedItemsSaveCounter = -1;
-
-    // Obtain currently changed items. Computes them if they haven't been computed before.
-    public IReadOnlyDictionary< string, (SingleArray< IMod >, object?) > ChangedItems
-    {
-        get
-        {
-            SetChangedItems();
-            return _changedItems;
-        }
-    }
-
-    // The cache reacts through events on its collection changing.
-    public ModCollectionCache( ModCollection collection )
-    {
-        _collection                    =  collection;
-        MetaManipulations              =  new MetaManager( _collection );
-    }
-
-    public void Dispose()
-    {
-        MetaManipulations.Dispose();
-    }
-
-    // Resolve a given game path according to this collection.
-    public FullPath? ResolvePath( Utf8GamePath gameResourcePath )
-    {
-        if( !ResolvedFiles.TryGetValue( gameResourcePath, out var candidate ) )
-        {
-            return null;
-        }
-
-        if( candidate.Path.InternalName.Length > Utf8GamePath.MaxGamePathLength
-        || candidate.Path.IsRooted && !candidate.Path.Exists )
-        {
-            return null;
-        }
-
-        return candidate.Path;
-    }
-
-    // For a given full path, find all game paths that currently use this file.
-    public IEnumerable< Utf8GamePath > ReverseResolvePath( FullPath localFilePath )
-    {
-        var needle = localFilePath.FullName.ToLower();
-        if( localFilePath.IsRooted )
-        {
-            needle = needle.Replace( '/', '\\' );
-        }
-
-        var iterator = ResolvedFiles
-            .Where( f => string.Equals( f.Value.Path.FullName, needle, StringComparison.OrdinalIgnoreCase ) )
-            .Select( kvp => kvp.Key );
-
-        // For files that are not rooted, try to add themselves.
-        if( !localFilePath.IsRooted && Utf8GamePath.FromString( localFilePath.FullName, out var utf8 ) )
-        {
-            iterator = iterator.Prepend( utf8 );
-        }
-
-        return iterator;
-    }
-
-    // Reverse resolve multiple paths at once for efficiency.
-    public HashSet< Utf8GamePath >[] ReverseResolvePaths( IReadOnlyCollection< string > fullPaths )
-    {
-        if( fullPaths.Count == 0 )
-            return Array.Empty< HashSet< Utf8GamePath > >();
-
-        var ret  = new HashSet< Utf8GamePath >[fullPaths.Count];
-        var dict = new Dictionary< FullPath, int >( fullPaths.Count );
-        foreach( var (path, idx) in fullPaths.WithIndex() )
-        {
-            dict[ new FullPath(path) ] = idx;
-            ret[ idx ] = !Path.IsPathRooted( path ) && Utf8GamePath.FromString( path, out var utf8 )
-                ? new HashSet< Utf8GamePath > { utf8 }
-                : new HashSet< Utf8GamePath >();
-        }
-
-        foreach( var (game, full) in ResolvedFiles )
-        {
-            if( dict.TryGetValue( full.Path, out var idx ) )
-            {
-                ret[ idx ].Add( game );
-            }
-        }
-
-        return ret;
-    }
-
-    public void FullRecalculation(bool isDefault)
-    {
-        ResolvedFiles.Clear();
-        MetaManipulations.Reset();
-        _conflicts.Clear();
-
-        // Add all forced redirects.
-        foreach( var tempMod in Penumbra.TempMods.ModsForAllCollections.Concat(
-                    Penumbra.TempMods.Mods.TryGetValue( _collection, out var list ) ? list : Array.Empty< TemporaryMod >() ) )
-        {
-            AddMod( tempMod, false );
-        }
-
-        foreach( var mod in Penumbra.ModManager )
-        {
-            AddMod( mod, false );
-        }
-
-        AddMetaFiles();
-
-        ++_collection.ChangeCounter;
-
-        if( isDefault && Penumbra.CharacterUtility.Ready && Penumbra.Config.EnableMods )
-        {
-            Penumbra.ResidentResources.Reload();
-            MetaManipulations.SetFiles();
-        }
-    }
-
-    public void ReloadMod( IMod mod, bool addMetaChanges )
-    {
-        RemoveMod( mod, addMetaChanges );
-        AddMod( mod, addMetaChanges );
-    }
-
-    public void RemoveMod( IMod mod, bool addMetaChanges )
-    {
-        var conflicts = Conflicts( mod );
-
-        foreach( var (path, _) in mod.AllSubMods.SelectMany( s => s.Files.Concat( s.FileSwaps ) ) )
-        {
-            if( !ResolvedFiles.TryGetValue( path, out var modPath ) )
-            {
-                continue;
-            }
-
-            if( modPath.Mod == mod )
-            {
-                ResolvedFiles.Remove( path );
-            }
-        }
-
-        foreach( var manipulation in mod.AllSubMods.SelectMany( s => s.Manipulations ) )
-        {
-            if( MetaManipulations.TryGetValue( manipulation, out var registeredMod ) && registeredMod == mod )
-            {
-                MetaManipulations.RevertMod( manipulation );
-            }
-        }
-
-        _conflicts.Remove( mod );
-        foreach( var conflict in conflicts )
-        {
-            if( conflict.HasPriority )
-            {
-                ReloadMod( conflict.Mod2, false );
-            }
-            else
-            {
-                var newConflicts = Conflicts( conflict.Mod2 ).Remove( c => c.Mod2 == mod );
-                if( newConflicts.Count > 0 )
-                {
-                    _conflicts[ conflict.Mod2 ] = newConflicts;
-                }
-                else
-                {
-                    _conflicts.Remove( conflict.Mod2 );
-                }
-            }
-        }
-
-        if( addMetaChanges )
-        {
-            ++_collection.ChangeCounter;
-            if( _collection == Penumbra.CollectionManager.Active.Default && Penumbra.CharacterUtility.Ready && Penumbra.Config.EnableMods )
-            {
-                Penumbra.ResidentResources.Reload();
-                MetaManipulations.SetFiles();
-            }
-        }
-    }
-
-
-    // Add all files and possibly manipulations of a given mod according to its settings in this collection.
-    public void AddMod( IMod mod, bool addMetaChanges )
-    {
-        if( mod.Index >= 0 )
-        {
-            var settings = _collection[ mod.Index ].Settings;
-            if( settings is not { Enabled: true } )
-            {
-                return;
-            }
-
-            foreach( var (group, groupIndex) in mod.Groups.WithIndex().OrderByDescending( g => g.Item1.Priority ) )
-            {
-                if( group.Count == 0 )
-                {
-                    continue;
-                }
-
-                var config = settings.Settings[ groupIndex ];
-                switch( group.Type )
-                {
-                    case GroupType.Single:
-                        AddSubMod( group[ ( int )config ], mod );
-                        break;
-                    case GroupType.Multi:
-                    {
-                        foreach( var (option, _) in group.WithIndex()
-                                    .Where( p => ( ( 1 << p.Item2 ) & config ) != 0 )
-                                    .OrderByDescending( p => group.OptionPriority( p.Item2 ) ) )
-                        {
-                            AddSubMod( option, mod );
-                        }
-
-                        break;
-                    }
-                }
-            }
-        }
-
-        AddSubMod( mod.Default, mod );
-
-        if( addMetaChanges )
-        {
-            ++_collection.ChangeCounter;
-            if(Penumbra.ModCaches[mod.Index].TotalManipulations > 0 )
-            {
-                AddMetaFiles();
-            }
-
-            if( _collection == Penumbra.CollectionManager.Active.Default && Penumbra.CharacterUtility.Ready && Penumbra.Config.EnableMods )
-            {
-                Penumbra.ResidentResources.Reload();
-                MetaManipulations.SetFiles();
-            }
-        }
-    }
-
-    // Add all files and possibly manipulations of a specific submod
-    private void AddSubMod( ISubMod subMod, IMod parentMod )
-    {
-        foreach( var (path, file) in subMod.Files.Concat( subMod.FileSwaps ) )
-        {
-            AddFile( path, file, parentMod );
-        }
-
-        foreach( var manip in subMod.Manipulations )
-        {
-            AddManipulation( manip, parentMod );
-        }
-    }
-
-    // Add a specific file redirection, handling potential conflicts.
-    // For different mods, higher mod priority takes precedence before option group priority,
-    // which takes precedence before option priority, which takes precedence before ordering.
-    // Inside the same mod, conflicts are not recorded.
-    private void AddFile( Utf8GamePath path, FullPath file, IMod mod )
-    {
-        if( !ModCollection.CheckFullPath( path, file ) )
-        {
-            return;
-        }
-
-        if( ResolvedFiles.TryAdd( path, new ModPath( mod, file ) ) )
-        {
-            return;
-        }
-
-        var modPath = ResolvedFiles[ path ];
-        // Lower prioritized option in the same mod.
-        if( mod == modPath.Mod )
-        {
-            return;
-        }
-
-        if( AddConflict( path, mod, modPath.Mod ) )
-        {
-            ResolvedFiles[ path ] = new ModPath( mod, file );
-        }
-    }
-
-
-    // Remove all empty conflict sets for a given mod with the given conflicts.
-    // If transitive is true, also removes the corresponding version of the other mod.
-    private void RemoveEmptyConflicts( IMod mod, SingleArray< ModConflicts > oldConflicts, bool transitive )
-    {
-        var changedConflicts = oldConflicts.Remove( c =>
-        {
-            if( c.Conflicts.Count == 0 )
-            {
-                if( transitive )
-                {
-                    RemoveEmptyConflicts( c.Mod2, Conflicts( c.Mod2 ), false );
-                }
-
-                return true;
-            }
-
-            return false;
-        } );
-        if( changedConflicts.Count == 0 )
-        {
-            _conflicts.Remove( mod );
-        }
-        else
-        {
-            _conflicts[ mod ] = changedConflicts;
-        }
-    }
-
-    // Add a new conflict between the added mod and the existing mod.
-    // Update all other existing conflicts between the existing mod and other mods if necessary.
-    // Returns if the added mod takes priority before the existing mod.
-    private bool AddConflict( object data, IMod addedMod, IMod existingMod )
-    {
-        var addedPriority    = addedMod.Index    >= 0 ? _collection[ addedMod.Index ].Settings!.Priority : addedMod.Priority;
-        var existingPriority = existingMod.Index >= 0 ? _collection[ existingMod.Index ].Settings!.Priority : existingMod.Priority;
-
-        if( existingPriority < addedPriority )
-        {
-            var tmpConflicts = Conflicts( existingMod );
-            foreach( var conflict in tmpConflicts )
-            {
-                if( data is Utf8GamePath path    && conflict.Conflicts.RemoveAll( p => p is Utf8GamePath x     && x.Equals( path ) ) > 0
-                || data is MetaManipulation meta && conflict.Conflicts.RemoveAll( m => m is MetaManipulation x && x.Equals( meta ) ) > 0 )
-                {
-                    AddConflict( data, addedMod, conflict.Mod2 );
-                }
-            }
-
-            RemoveEmptyConflicts( existingMod, tmpConflicts, true );
-        }
-
-        var addedConflicts    = Conflicts( addedMod );
-        var existingConflicts = Conflicts( existingMod );
-        if( addedConflicts.FindFirst( c => c.Mod2 == existingMod, out var oldConflicts ) )
-        {
-            // Only need to change one list since both conflict lists refer to the same list.
-            oldConflicts.Conflicts.Add( data );
-        }
-        else
-        {
-            // Add the same conflict list to both conflict directions.
-            var conflictList = new List< object > { data };
-            _conflicts[ addedMod ] = addedConflicts.Append( new ModConflicts( existingMod, conflictList, existingPriority < addedPriority,
-                existingPriority                                                                                          != addedPriority ) );
-            _conflicts[ existingMod ] = existingConflicts.Append( new ModConflicts( addedMod, conflictList,
-                existingPriority >= addedPriority,
-                existingPriority != addedPriority ) );
-        }
-
-        return existingPriority < addedPriority;
-    }
-
-    // Add a specific manipulation, handling potential conflicts.
-    // For different mods, higher mod priority takes precedence before option group priority,
-    // which takes precedence before option priority, which takes precedence before ordering.
-    // Inside the same mod, conflicts are not recorded.
-    private void AddManipulation( MetaManipulation manip, IMod mod )
-    {
-        if( !MetaManipulations.TryGetValue( manip, out var existingMod ) )
-        {
-            MetaManipulations.ApplyMod( manip, mod );
-            return;
-        }
-
-        // Lower prioritized option in the same mod.
-        if( mod == existingMod )
-        {
-            return;
-        }
-
-        if( AddConflict( manip, mod, existingMod ) )
-        {
-            MetaManipulations.ApplyMod( manip, mod );
-        }
-    }
-
-
-    // Add all necessary meta file redirects.
-    private void AddMetaFiles()
-        => MetaManipulations.SetImcFiles();
-
-    // Increment the counter to ensure new files are loaded after applying meta changes.
-    private void IncrementCounter()
-    {
-        ++_collection.ChangeCounter;
-        Penumbra.CharacterUtility.LoadingFinished -= IncrementCounter;
-    }
-
-
-    // Identify and record all manipulated objects for this entire collection.
-    private void SetChangedItems()
-    {
-        if( _changedItemsSaveCounter == _collection.ChangeCounter )
-        {
-            return;
-        }
-
-        try
-        {
-            _changedItemsSaveCounter = _collection.ChangeCounter;
-            _changedItems.Clear();
-            // Skip IMCs because they would result in far too many false-positive items,
-            // since they are per set instead of per item-slot/item/variant.
-            var identifier = Penumbra.Identifier;
-            var items      = new SortedList< string, object? >( 512 );
-
-            void AddItems( IMod mod )
-            {
-                foreach( var (name, obj) in items )
-                {
-                    if( !_changedItems.TryGetValue( name, out var data ) )
-                    {
-                        _changedItems.Add( name, ( new SingleArray< IMod >( mod ), obj ) );
-                    }
-                    else if( !data.Item1.Contains( mod ) )
-                    {
-                        _changedItems[ name ] = ( data.Item1.Append( mod ), obj is int x && data.Item2 is int y ? x + y : obj );
-                    }
-                    else if( obj is int x && data.Item2 is int y )
-                    {
-                        _changedItems[ name ] = ( data.Item1, x + y );
-                    }
-                }
-
-                items.Clear();
-            }
-
-            foreach( var (resolved, modPath) in ResolvedFiles.Where( file => !file.Key.Path.EndsWith( "imc"u8 ) ) )
-            {
-                identifier.Identify( items, resolved.ToString() );
-                AddItems( modPath.Mod );
-            }
-
-            foreach( var (manip, mod) in MetaManipulations )
-            {
-                ModCacheManager.ComputeChangedItems(identifier, items, manip );
-                AddItems( mod );
-            }
-        }
-        catch( Exception e )
-        {
-            Penumbra.Log.Error( $"Unknown Error:\n{e}" );
-        }
-    }
-}

Penumbra/Collections/ModCollection.cs

@@ -5,7 +5,8 @@ using System.Diagnostics;
 using System.Linq;
 using Penumbra.Mods.Manager;
 using Penumbra.Util;
-
+using Penumbra.Collections.Manager;
+
 namespace Penumbra.Collections;
 
 /// <summary>

Penumbra/Collections/ResolveData.cs

@@ -16,11 +16,9 @@ public readonly struct ResolveData
     public bool Valid
         => _modCollection != null;
 
-    public ResolveData()
-    {
-        _modCollection       = null!;
-        AssociatedGameObject = nint.Zero;
-    }
+    public ResolveData()
+     : this(null!, nint.Zero)
+    { }
 
     public ResolveData(ModCollection collection, nint gameObject)
     {

Penumbra/PenumbraNew.cs

@@ -22,7 +22,8 @@ using Penumbra.Util;
 using CharacterUtility = Penumbra.Interop.Services.CharacterUtility;
 using ModFileSystemSelector = Penumbra.UI.ModsTab.ModFileSystemSelector;
 using Penumbra.Mods.Manager;
-
+using Penumbra.Collections.Cache;
+
 namespace Penumbra;
 
 public class PenumbraNew

Penumbra/UI/Tabs/EffectiveTab.cs

@@ -9,6 +9,7 @@ using OtterGui.Classes;
 using OtterGui.Raii;
 using OtterGui.Widgets;
 using Penumbra.Collections;
+using Penumbra.Collections.Cache;
 using Penumbra.Collections.Manager;
 using Penumbra.Meta.Manipulations;
 using Penumbra.Mods;