A lot of interface stuff, some more cleanup and fixes. Main functionality should be mostly fine, importing works. Missing a lot of mod edit options.

OtterGui

@@ -1 +1 @@
-Subproject commit a832fb6ca5e7c6cb4e35a51a08d30d1800f405da
+Subproject commit 1a3cd1f881f3b6c2c4d9d4b20f054d1ab5ccc014

Penumbra/Api/PenumbraApi.cs

@@ -76,7 +76,7 @@ public class PenumbraApi : IDisposable, IPenumbraApi
         _penumbra!.ObjectReloader.RedrawAll( setting );
     }
 
-    private static string ResolvePath( string path, Mods.Mod2.Manager _, ModCollection collection )
+    private static string ResolvePath( string path, Mods.Mod.Manager _, ModCollection collection )
     {
         if( !Penumbra.Config.EnableMods )
         {

Penumbra/Api/SimpleRedirectManager.cs

@@ -48,7 +48,7 @@ public class SimpleRedirectManager
             return RedirectResult.NoPermission;
         }
 
-        if( Mod2.FilterFile( path ) )
+        if( Mod.FilterFile( path ) )
         {
             return RedirectResult.FilteredGamePath;
         }

Penumbra/Collections/CollectionManager.Active.cs

@@ -275,7 +275,7 @@ public partial class ModCollection
             }
         }
 
-        private void OnModRemovedActive( bool meta, IEnumerable< ModSettings2? > settings )
+        private void OnModRemovedActive( bool meta, IEnumerable< ModSettings? > settings )
         {
             foreach( var (collection, _) in this.Zip( settings ).Where( c => c.First.HasCache && c.Second?.Enabled == true ) )
             {

Penumbra/Collections/CollectionManager.cs

@@ -5,6 +5,7 @@ using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Linq;
 using Dalamud.Logging;
+using OtterGui.Filesystem;
 using Penumbra.Mods;
 using Penumbra.Util;
 
@@ -27,7 +28,7 @@ public partial class ModCollection
         public delegate void CollectionChangeDelegate( Type type, ModCollection? oldCollection, ModCollection? newCollection,
             string? characterName = null );
 
-        private readonly Mod2.Manager _modManager;
+        private readonly Mod.Manager _modManager;
 
         // The empty collection is always available and always has index 0.
         // It can not be deleted or moved.
@@ -59,7 +60,7 @@ public partial class ModCollection
         public IEnumerable< ModCollection > GetEnumeratorWithEmpty()
             => _collections;
 
-        public Manager( Mod2.Manager manager )
+        public Manager( Mod.Manager manager )
         {
             _modManager = manager;
 
@@ -207,7 +208,7 @@ public partial class ModCollection
 
 
         // A changed mod path forces changes for all collections, active and inactive.
-        private void OnModPathChanged( ModPathChangeType type, Mod2 mod, DirectoryInfo? oldDirectory,
+        private void OnModPathChanged( ModPathChangeType type, Mod mod, DirectoryInfo? oldDirectory,
             DirectoryInfo? newDirectory )
         {
             switch( type )
@@ -221,10 +222,10 @@ public partial class ModCollection
                     OnModAddedActive( mod.TotalManipulations > 0 );
                     break;
                 case ModPathChangeType.Deleted:
-                    var settings = new List< ModSettings2? >( _collections.Count );
+                    var settings = new List< ModSettings? >( _collections.Count );
                     foreach( var collection in this )
                     {
-                        settings.Add( collection[ mod.Index ].Settings );
+                        settings.Add( collection._settings[ mod.Index ] );
                         collection.RemoveMod( mod, mod.Index );
                     }
 
@@ -242,26 +243,50 @@ public partial class ModCollection
             }
         }
 
-
+        // Automatically update all relevant collections when a mod is changed.
-        private void OnModOptionsChanged( ModOptionChangeType type, Mod2 mod, int groupIdx, int optionIdx )
+        // This means saving if options change in a way where the settings may change and the collection has settings for this mod.
+        // And also updating effective file and meta manipulation lists if necessary.
+        private void OnModOptionsChanged( ModOptionChangeType type, Mod mod, int groupIdx, int optionIdx, int movedToIdx )
         {
-            if( type == ModOptionChangeType.DisplayChange )
+            var (handleChanges, recomputeList, withMeta) = type switch
             {
-                return;
+                ModOptionChangeType.GroupRenamed       => ( true, false, false ),
+                ModOptionChangeType.GroupAdded         => ( true, false, false ),
+                ModOptionChangeType.GroupDeleted       => ( true, true, true ),
+                ModOptionChangeType.GroupMoved         => ( true, false, false ),
+                ModOptionChangeType.GroupTypeChanged   => ( true, true, true ),
+                ModOptionChangeType.PriorityChanged    => ( true, true, true ),
+                ModOptionChangeType.OptionAdded        => ( true, true, true ),
+                ModOptionChangeType.OptionDeleted      => ( true, true, true ),
+                ModOptionChangeType.OptionMoved        => ( true, false, false ),
+                ModOptionChangeType.OptionFilesChanged => ( false, true, false ),
+                ModOptionChangeType.OptionSwapsChanged => ( false, true, false ),
+                ModOptionChangeType.OptionMetaChanged  => ( false, true, true ),
+                ModOptionChangeType.OptionUpdated      => ( false, true, true ),
+                ModOptionChangeType.DisplayChange      => ( false, false, false ),
+                _                                      => ( false, false, false ),
+            };
+
+            if( handleChanges )
+            {
+                foreach( var collection in this )
+                {
+                    if( collection._settings[ mod.Index ]?.HandleChanges( type, mod, groupIdx, optionIdx, movedToIdx ) ?? false )
+                    {
+                        collection.Save();
+                    }
+                }
             }
 
-            // TODO
+            if( recomputeList )
-            switch( type )
             {
-                case ModOptionChangeType.GroupRenamed:
+                foreach( var collection in this.Where( c => c.HasCache ) )
-                case ModOptionChangeType.GroupAdded:
+                {
-                case ModOptionChangeType.GroupDeleted:
+                    if( collection[ mod.Index ].Settings is { Enabled: true } )
-                case ModOptionChangeType.PriorityChanged:
+                    {
-                case ModOptionChangeType.OptionAdded:
+                        collection.CalculateEffectiveFileList( withMeta, collection == Penumbra.CollectionManager.Default );
-                case ModOptionChangeType.OptionDeleted:
+                    }
-                case ModOptionChangeType.OptionChanged:
+                }
-                default:
-                    throw new ArgumentOutOfRangeException( nameof( type ), type, null );
             }
         }
 

Penumbra/Collections/ConflictCache.cs

@@ -1,6 +1,6 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
+using OtterGui.Classes;
 using Penumbra.GameData.ByteString;
 using Penumbra.Meta.Manipulations;
 
@@ -73,9 +73,16 @@ public struct ConflictCache
     }
 
     // Find all mod conflicts concerning the specified mod (in both directions).
-    public IEnumerable< Conflict > ModConflicts( int modIdx )
+    public SubList< Conflict > ModConflicts( int modIdx )
     {
-        return _conflicts.SkipWhile( c => c.Mod1 < modIdx ).TakeWhile( c => c.Mod1 == modIdx );
+        var start = _conflicts.FindIndex( c => c.Mod1 == modIdx );
+        if( start < 0 )
+        {
+            return SubList< Conflict >.Empty;
+        }
+
+        var end = _conflicts.FindIndex( start, c => c.Mod1 != modIdx );
+        return new SubList< Conflict >( _conflicts, start, end - start );
     }
 
     private void Sort()

Penumbra/Collections/ModCollection.Cache.Access.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using Dalamud.Logging;
+using OtterGui.Classes;
 using Penumbra.GameData.ByteString;
 using Penumbra.Meta.Manager;
 
@@ -64,8 +65,8 @@ public partial class ModCollection
     internal IReadOnlyList< ConflictCache.Conflict > Conflicts
         => _cache?.Conflicts.Conflicts ?? Array.Empty< ConflictCache.Conflict >();
 
-    internal IEnumerable< ConflictCache.Conflict > ModConflicts( int modIdx )
+    internal SubList< ConflictCache.Conflict > ModConflicts( int modIdx )
-        => _cache?.Conflicts.ModConflicts( modIdx ) ?? Array.Empty< ConflictCache.Conflict >();
+        => _cache?.Conflicts.ModConflicts( modIdx ) ?? SubList< ConflictCache.Conflict >.Empty;
 
     // Update the effective file list for the given cache.
     // Creates a cache if necessary.

Penumbra/Collections/ModCollection.Cache.cs

@@ -18,7 +18,7 @@ public partial class ModCollection
         // Shared caches to avoid allocations.
         private static readonly Dictionary< Utf8GamePath, FileRegister >     RegisteredFiles         = new(1024);
         private static readonly Dictionary< MetaManipulation, FileRegister > RegisteredManipulations = new(1024);
-        private static readonly List< ModSettings2? >                        ResolvedSettings        = new(128);
+        private static readonly List< ModSettings? >                        ResolvedSettings        = new(128);
 
         private readonly ModCollection                        _collection;
         private readonly SortedList< string, object? >        _changedItems = new();
@@ -225,7 +225,7 @@ public partial class ModCollection
             foreach( var (path, file) in mod.Files.Concat( mod.FileSwaps ) )
             {
                 // Skip all filtered files
-                if( Mod2.FilterFile( path ) )
+                if( Mod.FilterFile( path ) )
                 {
                     continue;
                 }
@@ -257,6 +257,11 @@ public partial class ModCollection
             {
                 var config = settings.Settings[ idx ];
                 var group  = mod.Groups[ idx ];
+                if( group.Count == 0 )
+                {
+                    continue;
+                }
+
                 switch( group.Type )
                 {
                     case SelectType.Single:

Penumbra/Collections/ModCollection.Changes.cs

@@ -46,7 +46,7 @@ public partial class ModCollection
     }
 
     // Enable or disable the mod inheritance of every mod in mods.
-    public void SetMultipleModInheritances( IEnumerable< Mod2 > mods, bool inherit )
+    public void SetMultipleModInheritances( IEnumerable< Mod > mods, bool inherit )
     {
         if( mods.Aggregate( false, ( current, mod ) => current | FixInheritance( mod.Index, inherit ) ) )
         {
@@ -56,7 +56,7 @@ public partial class ModCollection
 
     // Set the enabled state of every mod in mods to the new value.
     // If the mod is currently inherited, stop the inheritance.
-    public void SetMultipleModStates( IEnumerable< Mod2 > mods, bool newValue )
+    public void SetMultipleModStates( IEnumerable< Mod > mods, bool newValue )
     {
         var changes = false;
         foreach( var mod in mods )
@@ -137,7 +137,7 @@ public partial class ModCollection
             return false;
         }
 
-        _settings[ idx ] = inherit ? null : this[ idx ].Settings?.DeepCopy() ?? ModSettings2.DefaultSettings( Penumbra.ModManager.Mods[ idx ] );
+        _settings[ idx ] = inherit ? null : this[ idx ].Settings?.DeepCopy() ?? ModSettings.DefaultSettings( Penumbra.ModManager.Mods[ idx ] );
         return true;
     }
 

Penumbra/Collections/ModCollection.File.cs

@@ -6,8 +6,8 @@ using System.Text;
 using Dalamud.Logging;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
+using OtterGui.Filesystem;
 using Penumbra.Mods;
-using Penumbra.Util;
 
 namespace Penumbra.Collections;
 
@@ -48,7 +48,7 @@ public partial class ModCollection
                 if( settings != null )
                 {
                     j.WritePropertyName( Penumbra.ModManager[ i ].BasePath.Name );
-                    x.Serialize( j, new ModSettings2.SavedSettings( settings, Penumbra.ModManager[ i ] ) );
+                    x.Serialize( j, new ModSettings.SavedSettings( settings, Penumbra.ModManager[ i ] ) );
                 }
             }
 
@@ -111,8 +111,8 @@ public partial class ModCollection
             var name    = obj[ nameof( Name ) ]?.ToObject< string >() ?? string.Empty;
             var version = obj[ nameof( Version ) ]?.ToObject< int >() ?? 0;
             // Custom deserialization that is converted with the constructor. 
-            var settings = obj[ nameof( Settings ) ]?.ToObject< Dictionary< string, ModSettings2.SavedSettings > >()
+            var settings = obj[ nameof( Settings ) ]?.ToObject< Dictionary< string, ModSettings.SavedSettings > >()
-             ?? new Dictionary< string, ModSettings2.SavedSettings >();
+             ?? new Dictionary< string, ModSettings.SavedSettings >();
             inheritance = obj[ nameof( Inheritance ) ]?.ToObject< List< string > >() ?? ( IReadOnlyList< string > )Array.Empty< string >();
 
             return new ModCollection( name, version, settings );

Penumbra/Collections/ModCollection.Inheritance.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using OtterGui.Filesystem;
 using Penumbra.Mods;
 using Penumbra.Util;
 
@@ -119,7 +120,7 @@ public partial class ModCollection
     // Obtain the actual settings for a given mod via index.
     // Also returns the collection the settings are taken from.
     // If no collection provides settings for this mod, this collection is returned together with null.
-    public (ModSettings2? Settings, ModCollection Collection) this[ Index idx ]
+    public (ModSettings? Settings, ModCollection Collection) this[ Index idx ]
     {
         get
         {

Penumbra/Collections/ModCollection.Migration.cs

@@ -45,13 +45,13 @@ public sealed partial class ModCollection
         }
 
         // We treat every completely defaulted setting as inheritance-ready.
-        private static bool SettingIsDefaultV0( ModSettings2.SavedSettings setting )
+        private static bool SettingIsDefaultV0( ModSettings.SavedSettings setting )
             => setting is { Enabled: false, Priority: 0 } && setting.Settings.Values.All( s => s == 0 );
 
-        private static bool SettingIsDefaultV0( ModSettings2? setting )
+        private static bool SettingIsDefaultV0( ModSettings? setting )
             => setting is { Enabled: false, Priority: 0 } && setting.Settings.All( s => s == 0 );
     }
 
-    internal static ModCollection MigrateFromV0( string name, Dictionary< string, ModSettings2.SavedSettings > allSettings )
+    internal static ModCollection MigrateFromV0( string name, Dictionary< string, ModSettings.SavedSettings > allSettings )
         => new(name, 0, allSettings);
 }

Penumbra/Collections/ModCollection.cs

@@ -27,17 +27,17 @@ public partial class ModCollection
 
     // If a ModSetting is null, it can be inherited from other collections.
     // If no collection provides a setting for the mod, it is just disabled.
-    private readonly List< ModSettings2? > _settings;
+    private readonly List< ModSettings? > _settings;
 
-    public IReadOnlyList< ModSettings2? > Settings
+    public IReadOnlyList< ModSettings? > Settings
         => _settings;
 
     // Evaluates the settings along the whole inheritance tree.
-    public IEnumerable< ModSettings2? > ActualSettings
+    public IEnumerable< ModSettings? > ActualSettings
         => Enumerable.Range( 0, _settings.Count ).Select( i => this[ i ].Settings );
 
     // Settings for deleted mods will be kept via directory name.
-    private readonly Dictionary< string, ModSettings2.SavedSettings > _unusedSettings;
+    private readonly Dictionary< string, ModSettings.SavedSettings > _unusedSettings;
 
     // Constructor for duplication.
     private ModCollection( string name, ModCollection duplicate )
@@ -52,13 +52,13 @@ public partial class ModCollection
     }
 
     // Constructor for reading from files.
-    private ModCollection( string name, int version, Dictionary< string, ModSettings2.SavedSettings > allSettings )
+    private ModCollection( string name, int version, Dictionary< string, ModSettings.SavedSettings > allSettings )
     {
         Name            = name;
         Version         = version;
         _unusedSettings = allSettings;
 
-        _settings = new List< ModSettings2? >();
+        _settings = new List< ModSettings? >();
         ApplyModSettings();
 
         Migration.Migrate( this );
@@ -68,7 +68,7 @@ public partial class ModCollection
 
     // Create a new, unique empty collection of a given name.
     public static ModCollection CreateNewEmpty( string name )
-        => new(name, CurrentVersion, new Dictionary< string, ModSettings2.SavedSettings >());
+        => new(name, CurrentVersion, new Dictionary< string, ModSettings.SavedSettings >());
 
     // Duplicate the calling collection to a new, unique collection of a given name.
     public ModCollection Duplicate( string name )
@@ -86,7 +86,7 @@ public partial class ModCollection
     }
 
     // Add settings for a new appended mod, by checking if the mod had settings from a previous deletion.
-    private bool AddMod( Mod2 mod )
+    private bool AddMod( Mod mod )
     {
         if( _unusedSettings.TryGetValue( mod.BasePath.Name, out var save ) )
         {
@@ -101,12 +101,12 @@ public partial class ModCollection
     }
 
     // Move settings from the current mod list to the unused mod settings.
-    private void RemoveMod( Mod2 mod, int idx )
+    private void RemoveMod( Mod mod, int idx )
     {
         var settings = _settings[ idx ];
         if( settings != null )
         {
-            _unusedSettings.Add( mod.BasePath.Name, new ModSettings2.SavedSettings( settings, mod ) );
+            _unusedSettings.Add( mod.BasePath.Name, new ModSettings.SavedSettings( settings, mod ) );
         }
 
         _settings.RemoveAt( idx );
@@ -127,7 +127,7 @@ public partial class ModCollection
     {
         foreach( var (mod, setting) in Penumbra.ModManager.Zip( _settings ).Where( s => s.Second != null ) )
         {
-            _unusedSettings[ mod.BasePath.Name ] = new ModSettings2.SavedSettings( setting!, mod );
+            _unusedSettings[ mod.BasePath.Name ] = new ModSettings.SavedSettings( setting!, mod );
         }
 
         _settings.Clear();

Penumbra/Import/ImporterState.cs

@@ -0,0 +1,9 @@
+namespace Penumbra.Import;
+
+public enum ImporterState
+{
+    None,
+    WritingPackToDisk,
+    ExtractingModFiles,
+    Done,
+}

Penumbra/Import/MetaFileInfo.cs

@@ -0,0 +1,126 @@
+using System.Text.RegularExpressions;
+using Penumbra.GameData.Enums;
+using Penumbra.GameData.Util;
+
+namespace Penumbra.Import;
+
+// Obtain information what type of object is manipulated
+// by the given .meta file from TexTools, using its name.
+public class MetaFileInfo
+{
+    private const string Pt   = @"(?'PrimaryType'[a-z]*)";                                              // language=regex
+    private const string Pp   = @"(?'PrimaryPrefix'[a-z])";                                             // language=regex
+    private const string Pi   = @"(?'PrimaryId'\d{4})";                                                 // language=regex
+    private const string Pir  = @"\k'PrimaryId'";                                                       // language=regex
+    private const string St   = @"(?'SecondaryType'[a-z]*)";                                            // language=regex
+    private const string Sp   = @"(?'SecondaryPrefix'[a-z])";                                           // language=regex
+    private const string Si   = @"(?'SecondaryId'\d{4})";                                               // language=regex
+    private const string File = @"\k'PrimaryPrefix'\k'PrimaryId'(\k'SecondaryPrefix'\k'SecondaryId')?"; // language=regex
+    private const string Slot = @"(_(?'Slot'[a-z]{3}))?";                                               // language=regex
+    private const string Ext  = @"\.meta";
+
+    // These are the valid regexes for .meta files that we are able to support at the moment.
+    private static readonly Regex HousingMeta = new($"bgcommon/hou/{Pt}/general/{Pi}/{Pir}{Ext}", RegexOptions.Compiled);
+    private static readonly Regex CharaMeta   = new($"chara/{Pt}/{Pp}{Pi}(/obj/{St}/{Sp}{Si})?/{File}{Slot}{Ext}", RegexOptions.Compiled);
+
+    public readonly ObjectType        PrimaryType;
+    public readonly BodySlot          SecondaryType;
+    public readonly ushort            PrimaryId;
+    public readonly ushort            SecondaryId;
+    public readonly EquipSlot         EquipSlot         = EquipSlot.Unknown;
+    public readonly CustomizationType CustomizationType = CustomizationType.Unknown;
+
+    private static bool ValidType( ObjectType type )
+    {
+        return type switch
+        {
+            ObjectType.Accessory     => true,
+            ObjectType.Character     => true,
+            ObjectType.Equipment     => true,
+            ObjectType.DemiHuman     => true,
+            ObjectType.Housing       => true,
+            ObjectType.Monster       => true,
+            ObjectType.Weapon        => true,
+            ObjectType.Icon          => false,
+            ObjectType.Font          => false,
+            ObjectType.Interface     => false,
+            ObjectType.LoadingScreen => false,
+            ObjectType.Map           => false,
+            ObjectType.Vfx           => false,
+            ObjectType.Unknown       => false,
+            ObjectType.World         => false,
+            _                        => false,
+        };
+    }
+
+    public MetaFileInfo( string fileName )
+        : this( new GamePath( fileName ) )
+    { }
+
+    public MetaFileInfo( GamePath fileName )
+    {
+        // Set the primary type from the gamePath start.
+        PrimaryType   = GameData.GameData.GetGamePathParser().PathToObjectType( fileName );
+        PrimaryId     = 0;
+        SecondaryType = BodySlot.Unknown;
+        SecondaryId   = 0;
+        // Not all types of objects can have valid meta data manipulation.
+        if( !ValidType( PrimaryType ) )
+        {
+            PrimaryType = ObjectType.Unknown;
+            return;
+        }
+
+        // Housing files have a separate regex that just contains the primary id.
+        if( PrimaryType == ObjectType.Housing )
+        {
+            var housingMatch = HousingMeta.Match( fileName );
+            if( housingMatch.Success )
+            {
+                PrimaryId = ushort.Parse( housingMatch.Groups[ "PrimaryId" ].Value );
+            }
+
+            return;
+        }
+
+        // Non-housing is in chara/.
+        var match = CharaMeta.Match( fileName );
+        if( !match.Success )
+        {
+            return;
+        }
+
+        // The primary ID has to be available for every object.
+        PrimaryId = ushort.Parse( match.Groups[ "PrimaryId" ].Value );
+
+        // Depending on slot, we can set equip slot or customization type.
+        if( match.Groups[ "Slot" ].Success )
+        {
+            switch( PrimaryType )
+            {
+                case ObjectType.Equipment:
+                case ObjectType.Accessory:
+                    if( Names.SuffixToEquipSlot.TryGetValue( match.Groups[ "Slot" ].Value, out var tmpSlot ) )
+                    {
+                        EquipSlot = tmpSlot;
+                    }
+
+                    break;
+                case ObjectType.Character:
+                    if( Names.SuffixToCustomizationType.TryGetValue( match.Groups[ "Slot" ].Value, out var tmpCustom ) )
+                    {
+                        CustomizationType = tmpCustom;
+                    }
+
+                    break;
+            }
+        }
+
+        // Secondary type and secondary id are for weapons and demihumans.
+        if( match.Groups[ "SecondaryType" ].Success
+        && Names.StringToBodySlot.TryGetValue( match.Groups[ "SecondaryType" ].Value, out SecondaryType ) )
+        {
+            SecondaryId = ushort.Parse( match.Groups[ "SecondaryId" ].Value );
+        }
+    }
+}

Penumbra/Import/StreamDisposer.cs

@@ -0,0 +1,25 @@
+using System;
+using System.IO;
+using Penumbra.Util;
+
+namespace Penumbra.Import;
+
+// Create an automatically disposing SqPack stream.
+public class StreamDisposer : PenumbraSqPackStream, IDisposable
+{
+    private readonly FileStream _fileStream;
+
+    public StreamDisposer( FileStream stream )
+        : base( stream )
+        => _fileStream = stream;
+
+    public new void Dispose()
+    {
+        var filePath = _fileStream.Name;
+
+        base.Dispose();
+        _fileStream.Dispose();
+
+        File.Delete( filePath );
+    }
+}

Penumbra/Import/TexToolsImport.cs

@@ -0,0 +1,154 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+using System.Threading.Tasks;
+using Dalamud.Logging;
+using ICSharpCode.SharpZipLib.Zip;
+using Newtonsoft.Json;
+using Penumbra.Util;
+using FileMode = System.IO.FileMode;
+
+namespace Penumbra.Import;
+
+public partial class TexToolsImporter
+{
+    private const           string                 TempFileName = "textools-import";
+    private static readonly JsonSerializerSettings JsonSettings = new() { NullValueHandling = NullValueHandling.Ignore };
+
+    private readonly DirectoryInfo _baseDirectory;
+    private readonly string        _tmpFile;
+
+    private readonly IEnumerable< FileInfo > _modPackFiles;
+    private readonly int                     _modPackCount;
+
+    public ImporterState State { get; private set; }
+    public readonly List< (FileInfo File, DirectoryInfo? Mod, Exception? Error) > ExtractedMods;
+
+    public TexToolsImporter( DirectoryInfo baseDirectory, ICollection< FileInfo > files )
+        : this( baseDirectory, files.Count, files )
+    { }
+
+    public TexToolsImporter( DirectoryInfo baseDirectory, int count, IEnumerable< FileInfo > modPackFiles )
+    {
+        _baseDirectory = baseDirectory;
+        _tmpFile       = Path.Combine( _baseDirectory.FullName, TempFileName );
+        _modPackFiles  = modPackFiles;
+        _modPackCount  = count;
+        ExtractedMods  = new List< (FileInfo, DirectoryInfo?, Exception?) >( count );
+        Task.Run( ImportFiles );
+    }
+
+    private void ImportFiles()
+    {
+        State              = ImporterState.None;
+        _currentModPackIdx = 0;
+        foreach( var file in _modPackFiles )
+        {
+            try
+            {
+                var directory = VerifyVersionAndImport( file );
+                ExtractedMods.Add( ( file, directory, null ) );
+            }
+            catch( Exception e )
+            {
+                ExtractedMods.Add( ( file, null, e ) );
+                _currentNumOptions = 0;
+                _currentOptionIdx  = 0;
+                _currentFileIdx    = 0;
+                _currentNumFiles   = 0;
+            }
+
+            ++_currentModPackIdx;
+        }
+
+        State = ImporterState.Done;
+    }
+
+    // Rudimentary analysis of a TTMP file by extension and version.
+    // Puts out warnings if extension does not correspond to data.
+    private DirectoryInfo VerifyVersionAndImport( FileInfo modPackFile )
+    {
+        using var zfs              = modPackFile.OpenRead();
+        using var extractedModPack = new ZipFile( zfs );
+
+        var mpl = FindZipEntry( extractedModPack, "TTMPL.mpl" );
+        if( mpl == null )
+        {
+            throw new FileNotFoundException( "ZIP does not contain a TTMPL.mpl file." );
+        }
+
+        var modRaw = GetStringFromZipEntry( extractedModPack, mpl, Encoding.UTF8 );
+
+        // At least a better validation than going by the extension.
+        if( modRaw.Contains( "\"TTMPVersion\":" ) )
+        {
+            if( modPackFile.Extension != ".ttmp2" )
+            {
+                PluginLog.Warning( $"File {modPackFile.FullName} seems to be a V2 TTMP, but has the wrong extension." );
+            }
+
+            return ImportV2ModPack( _: modPackFile, extractedModPack, modRaw );
+        }
+
+        if( modPackFile.Extension != ".ttmp" )
+        {
+            PluginLog.Warning( $"File {modPackFile.FullName} seems to be a V1 TTMP, but has the wrong extension." );
+        }
+
+        return ImportV1ModPack( modPackFile, extractedModPack, modRaw );
+    }
+
+
+    // You can in no way rely on any file paths in TTMPs so we need to just do this, sorry
+    private static ZipEntry? FindZipEntry( ZipFile file, string fileName )
+    {
+        for( var i = 0; i < file.Count; i++ )
+        {
+            var entry = file[ i ];
+
+            if( entry.Name.Contains( fileName ) )
+            {
+                return entry;
+            }
+        }
+
+        return null;
+    }
+
+    private static Stream GetStreamFromZipEntry( ZipFile file, ZipEntry entry )
+        => file.GetInputStream( entry );
+
+    private static string GetStringFromZipEntry( ZipFile file, ZipEntry entry, Encoding encoding )
+    {
+        using var ms = new MemoryStream();
+        using var s  = GetStreamFromZipEntry( file, entry );
+        s.CopyTo( ms );
+        return encoding.GetString( ms.ToArray() );
+    }
+
+    private void WriteZipEntryToTempFile( Stream s )
+    {
+        using var fs = new FileStream( _tmpFile, FileMode.Create );
+        s.CopyTo( fs );
+    }
+
+    private PenumbraSqPackStream GetSqPackStreamStream( ZipFile file, string entryName )
+    {
+        State = ImporterState.WritingPackToDisk;
+
+        // write shitty zip garbage to disk
+        var entry = FindZipEntry( file, entryName );
+        if( entry == null )
+        {
+            throw new FileNotFoundException( $"ZIP does not contain a file named {entryName}." );
+        }
+
+        using var s = file.GetInputStream( entry );
+
+        WriteZipEntryToTempFile( s );
+
+        var fs = new FileStream( _tmpFile, FileMode.Open );
+        return new StreamDisposer( fs );
+    }
+}

Penumbra/Import/TexToolsImporter.Gui.cs

@@ -0,0 +1,94 @@
+using System.Linq;
+using System.Numerics;
+using ImGuiNET;
+using OtterGui;
+using OtterGui.Raii;
+using Penumbra.UI.Classes;
+
+namespace Penumbra.Import;
+
+public partial class TexToolsImporter
+{
+    // Progress Data
+    private int _currentModPackIdx;
+    private int _currentOptionIdx;
+    private int _currentFileIdx;
+
+    private int    _currentNumOptions;
+    private int    _currentNumFiles;
+    private string _currentModName    = string.Empty;
+    private string _currentGroupName  = string.Empty;
+    private string _currentOptionName = string.Empty;
+    private string _currentFileName   = string.Empty;
+
+
+    public void DrawProgressInfo( Vector2 size )
+    {
+        if( _modPackCount == 0 )
+        {
+            ImGuiUtil.Center( "Nothing to extract." );
+        }
+        else if( _modPackCount == _currentModPackIdx )
+        {
+            DrawEndState();
+        }
+        else
+        {
+            ImGui.NewLine();
+            var percentage = _modPackCount / ( float )_currentModPackIdx;
+            ImGui.ProgressBar( percentage, size, $"Mod {_currentModPackIdx + 1} / {_modPackCount}" );
+            ImGui.NewLine();
+            ImGui.Text( $"Extracting {_currentModName}..." );
+
+            if( _currentNumOptions > 1 )
+            {
+                ImGui.NewLine();
+                ImGui.NewLine();
+                percentage = _currentNumOptions == 0 ? 1f : _currentOptionIdx / ( float )_currentNumOptions;
+                ImGui.ProgressBar( percentage, size, $"Option {_currentOptionIdx + 1} / {_currentNumOptions}" );
+                ImGui.NewLine();
+                ImGui.Text(
+                    $"Extracting option {( _currentGroupName.Length == 0 ? string.Empty : $"{_currentGroupName} - " )}{_currentOptionName}..." );
+            }
+
+            ImGui.NewLine();
+            ImGui.NewLine();
+            percentage = _currentNumFiles == 0 ? 1f : _currentFileIdx / ( float )_currentNumFiles;
+            ImGui.ProgressBar( percentage, size, $"File {_currentFileIdx + 1} / {_currentNumFiles}" );
+            ImGui.NewLine();
+            ImGui.Text( $"Extracting file {_currentFileName}..." );
+        }
+    }
+
+
+    private void DrawEndState()
+    {
+        var success = ExtractedMods.Count( t => t.Mod != null );
+
+        ImGui.Text( $"Successfully extracted {success} / {ExtractedMods.Count} files." );
+        ImGui.NewLine();
+        using var table = ImRaii.Table( "##files", 2 );
+        if( !table )
+        {
+            return;
+        }
+
+        foreach( var (file, dir, ex) in ExtractedMods )
+        {
+            ImGui.TableNextColumn();
+            ImGui.Text( file.Name );
+            ImGui.TableNextColumn();
+            if( dir != null )
+            {
+                using var color = ImRaii.PushColor( ImGuiCol.Text, ColorId.FolderExpanded.Value() );
+                ImGui.Text( dir.FullName[ ( _baseDirectory.FullName.Length + 1 ).. ] );
+            }
+            else
+            {
+                using var color = ImRaii.PushColor( ImGuiCol.Text, ColorId.ConflictingMod.Value() );
+                ImGui.Text( ex!.Message );
+                ImGuiUtil.HoverTooltip( ex.ToString() );
+            }
+        }
+    }
+}

Penumbra/Import/TexToolsImporter.ModPack.cs

@@ -0,0 +1,235 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using Dalamud.Logging;
+using ICSharpCode.SharpZipLib.Zip;
+using Newtonsoft.Json;
+using Penumbra.Mods;
+using Penumbra.Util;
+
+namespace Penumbra.Import;
+
+public partial class TexToolsImporter
+{
+    // Version 1 mod packs are a simple collection of files without much information.
+    private DirectoryInfo ImportV1ModPack( FileInfo modPackFile, ZipFile extractedModPack, string modRaw )
+    {
+        _currentOptionIdx  = 0;
+        _currentNumOptions = 1;
+        _currentModName    = modPackFile.Name.Length > 0 ? modPackFile.Name : DefaultTexToolsData.Name;
+        _currentGroupName  = string.Empty;
+        _currentOptionName = DefaultTexToolsData.DefaultOption;
+
+        PluginLog.Log( "    -> Importing V1 ModPack" );
+
+        var modListRaw = modRaw.Split(
+            new[] { "\r\n", "\r", "\n" },
+            StringSplitOptions.RemoveEmptyEntries
+        );
+
+        var modList = modListRaw.Select( m => JsonConvert.DeserializeObject< SimpleMod >( m, JsonSettings )! ).ToList();
+
+        // Open the mod data file from the mod pack as a SqPackStream
+        using var modData = GetSqPackStreamStream( extractedModPack, "TTMPD.mpd" );
+
+        var ret = Mod.CreateModFolder( _baseDirectory, Path.GetFileNameWithoutExtension( modPackFile.Name ) );
+        // Create a new ModMeta from the TTMP mod list info
+        Mod.CreateMeta( ret, _currentModName, DefaultTexToolsData.Author, DefaultTexToolsData.Description, null, null );
+
+        ExtractSimpleModList( ret, modList, modData );
+
+        return ret;
+    }
+
+    // Version 2 mod packs can either be simple or extended, import accordingly.
+    private DirectoryInfo ImportV2ModPack( FileInfo _, ZipFile extractedModPack, string modRaw )
+    {
+        var modList = JsonConvert.DeserializeObject< SimpleModPack >( modRaw, JsonSettings )!;
+
+        if( modList.TtmpVersion.EndsWith( "s" ) )
+        {
+            return ImportSimpleV2ModPack( extractedModPack, modList );
+        }
+
+        if( modList.TtmpVersion.EndsWith( "w" ) )
+        {
+            return ImportExtendedV2ModPack( extractedModPack, modRaw );
+        }
+
+        try
+        {
+            PluginLog.Warning( $"Unknown TTMPVersion <{modList.TtmpVersion}> given, trying to export as simple mod pack." );
+            return ImportSimpleV2ModPack( extractedModPack, modList );
+        }
+        catch( Exception e1 )
+        {
+            PluginLog.Warning( $"Exporting as simple mod pack failed with following error, retrying as extended mod pack:\n{e1}" );
+            try
+            {
+                return ImportExtendedV2ModPack( extractedModPack, modRaw );
+            }
+            catch( Exception e2 )
+            {
+                throw new IOException( "Exporting as extended mod pack failed, too. Version unsupported or file defect.", e2 );
+            }
+        }
+    }
+
+    // Simple V2 mod packs are basically the same as V1 mod packs.
+    private DirectoryInfo ImportSimpleV2ModPack( ZipFile extractedModPack, SimpleModPack modList )
+    {
+        _currentOptionIdx  = 0;
+        _currentNumOptions = 1;
+        _currentModName    = modList.Name;
+        _currentGroupName  = string.Empty;
+        _currentOptionName = DefaultTexToolsData.DefaultOption;
+        PluginLog.Log( "    -> Importing Simple V2 ModPack" );
+
+        // Open the mod data file from the mod pack as a SqPackStream
+        using var modData = GetSqPackStreamStream( extractedModPack, "TTMPD.mpd" );
+
+        var ret = Mod.CreateModFolder( _baseDirectory, _currentModName );
+        Mod.CreateMeta( ret, _currentModName, modList.Author, string.IsNullOrEmpty( modList.Description )
+            ? "Mod imported from TexTools mod pack"
+            : modList.Description, null, null );
+
+        ExtractSimpleModList( ret, modList.SimpleModsList, modData );
+        return ret;
+    }
+
+    // Obtain the number of relevant options to extract.
+    private static int GetOptionCount( ExtendedModPack pack )
+        => ( pack.SimpleModsList.Length > 0 ? 1 : 0 )
+          + pack.ModPackPages
+               .Sum( page => page.ModGroups
+                   .Where( g => g.GroupName.Length > 0 && g.OptionList.Length > 0 )
+                   .Sum( group => group.OptionList
+                       .Count( o => o.Name.Length > 0 && o.ModsJsons.Length > 0 ) ) );
+
+    // Extended V2 mod packs contain multiple options that need to be handled separately.
+    private DirectoryInfo ImportExtendedV2ModPack( ZipFile extractedModPack, string modRaw )
+    {
+        _currentOptionIdx = 0;
+        PluginLog.Log( "    -> Importing Extended V2 ModPack" );
+
+        var modList = JsonConvert.DeserializeObject< ExtendedModPack >( modRaw, JsonSettings )!;
+        _currentNumOptions = GetOptionCount( modList );
+        _currentModName    = modList.Name;
+        // Open the mod data file from the mod pack as a SqPackStream
+        using var modData = GetSqPackStreamStream( extractedModPack, "TTMPD.mpd" );
+
+        var ret = Mod.CreateModFolder( _baseDirectory, _currentModName );
+        Mod.CreateMeta( ret, _currentModName, modList.Author, modList.Description, modList.Version, null );
+
+        if( _currentNumOptions == 0 )
+        {
+            return ret;
+        }
+
+        // It can contain a simple list, still.
+        if( modList.SimpleModsList.Length > 0 )
+        {
+            _currentGroupName  = string.Empty;
+            _currentOptionName = "Default";
+            ExtractSimpleModList( ret, modList.SimpleModsList, modData );
+        }
+
+        // Iterate through all pages
+        var options       = new List< ISubMod >();
+        var groupPriority = 0;
+        foreach( var page in modList.ModPackPages )
+        {
+            foreach( var group in page.ModGroups.Where( group => group.GroupName.Length > 0 && group.OptionList.Length > 0 ) )
+            {
+                _currentGroupName = group.GroupName;
+                options.Clear();
+                var description = new StringBuilder();
+                var groupFolder = Mod.NewSubFolderName( ret, group.GroupName )
+                 ?? new DirectoryInfo( Path.Combine( ret.FullName, $"Group {groupPriority + 1}" ) );
+
+                var optionIdx = 1;
+
+                foreach( var option in group.OptionList.Where( option => option.Name.Length > 0 && option.ModsJsons.Length > 0 ) )
+                {
+                    _currentOptionName = option.Name;
+                    var optionFolder = Mod.NewSubFolderName( groupFolder, option.Name )
+                     ?? new DirectoryInfo( Path.Combine( groupFolder.FullName, $"Option {optionIdx}" ) );
+                    ExtractSimpleModList( optionFolder, option.ModsJsons, modData );
+                    options.Add( Mod.CreateSubMod( ret, optionFolder, option ) );
+                    description.Append( option.Description );
+                    if( !string.IsNullOrEmpty( option.Description ) )
+                    {
+                        description.Append( '\n' );
+                    }
+
+                    ++optionIdx;
+                    ++_currentOptionIdx;
+                }
+
+                Mod.CreateOptionGroup( ret, group, groupPriority++, description.ToString(), options );
+            }
+        }
+
+        Mod.CreateDefaultFiles( ret );
+        return ret;
+    }
+
+    private void ExtractSimpleModList( DirectoryInfo outDirectory, ICollection< SimpleMod > mods, PenumbraSqPackStream dataStream )
+    {
+        State = ImporterState.ExtractingModFiles;
+
+        _currentFileIdx  = 0;
+        _currentNumFiles = mods.Count;
+
+        // Extract each SimpleMod into the new mod folder
+        foreach( var simpleMod in mods )
+        {
+            ExtractMod( outDirectory, simpleMod, dataStream );
+            ++_currentFileIdx;
+        }
+    }
+
+    private void ExtractMod( DirectoryInfo outDirectory, SimpleMod mod, PenumbraSqPackStream dataStream )
+    {
+        PluginLog.Log( "        -> Extracting {0} at {1}", mod.FullPath, mod.ModOffset.ToString( "X" ) );
+
+        try
+        {
+            var data = dataStream.ReadFile< PenumbraSqPackStream.PenumbraFileResource >( mod.ModOffset );
+
+            _currentFileName = mod.FullPath;
+            var extractedFile = new FileInfo( Path.Combine( outDirectory.FullName, mod.FullPath ) );
+
+            extractedFile.Directory?.Create();
+
+            if( extractedFile.FullName.EndsWith( ".mdl" ) )
+            {
+                ProcessMdl( data.Data );
+            }
+
+            File.WriteAllBytes( extractedFile.FullName, data.Data );
+        }
+        catch( Exception ex )
+        {
+            PluginLog.LogError( ex, "Could not extract mod." );
+        }
+    }
+
+    private static void ProcessMdl( byte[] mdl )
+    {
+        const int modelHeaderLodOffset = 22;
+
+        // Model file header LOD num
+        mdl[ 64 ] = 1;
+
+        // Model header LOD num
+        var       stackSize            = BitConverter.ToUInt32( mdl, 4 );
+        var       runtimeBegin         = stackSize    + 0x44;
+        var       stringsLengthOffset  = runtimeBegin + 4;
+        var       stringsLength        = BitConverter.ToUInt32( mdl, ( int )stringsLengthOffset );
+        var       modelHeaderStart     = stringsLengthOffset + stringsLength + 4;
+        mdl[ modelHeaderStart + modelHeaderLodOffset ] = 1;
+    }
+}

Penumbra/Import/TexToolsMeta.Deserialization.cs

@@ -0,0 +1,174 @@
+using System;
+using System.IO;
+using Dalamud.Logging;
+using Lumina.Extensions;
+using Penumbra.GameData.Enums;
+using Penumbra.GameData.Structs;
+using Penumbra.Meta.Files;
+using Penumbra.Meta.Manipulations;
+
+namespace Penumbra.Import;
+
+public partial class TexToolsMeta
+{
+    // Deserialize and check Eqp Entries and add them to the list if they are non-default.
+    private void DeserializeEqpEntry( MetaFileInfo metaFileInfo, byte[]? data )
+    {
+        // Eqp can only be valid for equipment.
+        if( data == null || !metaFileInfo.EquipSlot.IsEquipment() )
+        {
+            return;
+        }
+
+        var value = Eqp.FromSlotAndBytes( metaFileInfo.EquipSlot, data );
+        var def   = new EqpManipulation( ExpandedEqpFile.GetDefault( metaFileInfo.PrimaryId ), metaFileInfo.EquipSlot, metaFileInfo.PrimaryId );
+        var manip = new EqpManipulation( value, metaFileInfo.EquipSlot, metaFileInfo.PrimaryId );
+        if( def.Entry != manip.Entry )
+        {
+            MetaManipulations.Add( manip );
+        }
+    }
+
+    // Deserialize and check Eqdp Entries and add them to the list if they are non-default.
+    private void DeserializeEqdpEntries( MetaFileInfo metaFileInfo, byte[]? data )
+    {
+        if( data == null )
+        {
+            return;
+        }
+
+        var       num    = data.Length / 5;
+        using var reader = new BinaryReader( new MemoryStream( data ) );
+        for( var i = 0; i < num; ++i )
+        {
+            // Use the SE gender/race code.
+            var gr        = ( GenderRace )reader.ReadUInt32();
+            var byteValue = reader.ReadByte();
+            if( !gr.IsValid() || !metaFileInfo.EquipSlot.IsEquipment() && !metaFileInfo.EquipSlot.IsAccessory() )
+            {
+                continue;
+            }
+
+            var value = Eqdp.FromSlotAndBits( metaFileInfo.EquipSlot, ( byteValue & 1 ) == 1, ( byteValue & 2 ) == 2 );
+            var def = new EqdpManipulation( ExpandedEqdpFile.GetDefault( gr, metaFileInfo.EquipSlot.IsAccessory(), metaFileInfo.PrimaryId ),
+                metaFileInfo.EquipSlot,
+                gr.Split().Item1, gr.Split().Item2, metaFileInfo.PrimaryId );
+            var manip = new EqdpManipulation( value, metaFileInfo.EquipSlot, gr.Split().Item1, gr.Split().Item2, metaFileInfo.PrimaryId );
+            if( def.Entry != manip.Entry )
+            {
+                MetaManipulations.Add( manip );
+            }
+        }
+    }
+
+    // Deserialize and check Gmp Entries and add them to the list if they are non-default.
+    private void DeserializeGmpEntry( MetaFileInfo metaFileInfo, byte[]? data )
+    {
+        if( data == null )
+        {
+            return;
+        }
+
+        using var reader = new BinaryReader( new MemoryStream( data ) );
+        var       value  = ( GmpEntry )reader.ReadUInt32();
+        value.UnknownTotal = reader.ReadByte();
+        var def = ExpandedGmpFile.GetDefault( metaFileInfo.PrimaryId );
+        if( value != def )
+        {
+            MetaManipulations.Add( new GmpManipulation( value, metaFileInfo.PrimaryId ) );
+        }
+    }
+
+    // Deserialize and check Est Entries and add them to the list if they are non-default.
+    private void DeserializeEstEntries( MetaFileInfo metaFileInfo, byte[]? data )
+    {
+        if( data == null )
+        {
+            return;
+        }
+
+        var       num    = data.Length / 6;
+        using var reader = new BinaryReader( new MemoryStream( data ) );
+        for( var i = 0; i < num; ++i )
+        {
+            var gr    = ( GenderRace )reader.ReadUInt16();
+            var id    = reader.ReadUInt16();
+            var value = reader.ReadUInt16();
+            var type = ( metaFileInfo.SecondaryType, metaFileInfo.EquipSlot ) switch
+            {
+                (BodySlot.Face, _)  => EstManipulation.EstType.Face,
+                (BodySlot.Hair, _)  => EstManipulation.EstType.Hair,
+                (_, EquipSlot.Head) => EstManipulation.EstType.Head,
+                (_, EquipSlot.Body) => EstManipulation.EstType.Body,
+                _                   => ( EstManipulation.EstType )0,
+            };
+            if( !gr.IsValid() || type == 0 )
+            {
+                continue;
+            }
+
+            var def = EstFile.GetDefault( type, gr, id );
+            if( def != value )
+            {
+                MetaManipulations.Add( new EstManipulation( gr.Split().Item1, gr.Split().Item2, type, id, value ) );
+            }
+        }
+    }
+
+    // Deserialize and check IMC Entries and add them to the list if they are non-default.
+    // This requires requesting a file from Lumina, which may fail due to TexTools corruption or just not existing.
+    // TexTools creates IMC files for off-hand weapon models which may not exist in the game files.
+    private void DeserializeImcEntries( MetaFileInfo metaFileInfo, byte[]? data )
+    {
+        if( data == null )
+        {
+            return;
+        }
+
+        var       num    = data.Length / 6;
+        using var reader = new BinaryReader( new MemoryStream( data ) );
+        var       values = reader.ReadStructures< ImcEntry >( num );
+        ushort    i      = 0;
+        try
+        {
+            if( metaFileInfo.PrimaryType is ObjectType.Equipment or ObjectType.Accessory )
+            {
+                var def = new ImcFile( new ImcManipulation( metaFileInfo.EquipSlot, i, metaFileInfo.PrimaryId, new ImcEntry() ).GamePath() );
+                var partIdx = ImcFile.PartIndex( metaFileInfo.EquipSlot );
+                foreach( var value in values )
+                {
+                    if( !value.Equals( def.GetEntry( partIdx, i ) ) )
+                    {
+                        MetaManipulations.Add( new ImcManipulation( metaFileInfo.EquipSlot, i, metaFileInfo.PrimaryId, value ) );
+                    }
+
+                    ++i;
+                }
+            }
+            else
+            {
+                var def = new ImcFile( new ImcManipulation( metaFileInfo.PrimaryType, metaFileInfo.SecondaryType, metaFileInfo.PrimaryId,
+                    metaFileInfo.SecondaryId, i,
+                    new ImcEntry() ).GamePath() );
+                foreach( var value in values )
+                {
+                    if( !value.Equals( def.GetEntry( 0, i ) ) )
+                    {
+                        MetaManipulations.Add( new ImcManipulation( metaFileInfo.PrimaryType, metaFileInfo.SecondaryType,
+                            metaFileInfo.PrimaryId,
+                            metaFileInfo.SecondaryId, i,
+                            value ) );
+                    }
+
+                    ++i;
+                }
+            }
+        }
+        catch( Exception e )
+        {
+            PluginLog.Warning(
+                $"Could not compute IMC manipulation for {metaFileInfo.PrimaryType} {metaFileInfo.PrimaryId}. This is in all likelihood due to TexTools corrupting your index files.\n"
+              + $"If the following error looks like Lumina is having trouble to read an IMC file, please do a do-over in TexTools:\n{e}" );
+        }
+    }
+}

Penumbra/Import/TexToolsMeta.Rgsp.cs

@@ -0,0 +1,81 @@
+using System;
+using System.IO;
+using Dalamud.Logging;
+using Penumbra.GameData.Enums;
+using Penumbra.Meta.Files;
+using Penumbra.Meta.Manipulations;
+
+namespace Penumbra.Import;
+
+public partial class TexToolsMeta
+{
+    // Parse a single rgsp file.
+    public static TexToolsMeta FromRgspFile( string filePath, byte[] data )
+    {
+        if( data.Length != 45 && data.Length != 42 )
+        {
+            PluginLog.Error( "Error while parsing .rgsp file:\n\tInvalid number of bytes." );
+            return Invalid;
+        }
+
+        using var s  = new MemoryStream( data );
+        using var br = new BinaryReader( s );
+        // The first value is a flag that signifies version.
+        // If it is byte.max, the following two bytes are the version,
+        // otherwise it is version 1 and signifies the sub race instead.
+        var flag    = br.ReadByte();
+        var version = flag != 255 ? ( uint )1 : br.ReadUInt16();
+
+        var ret = new TexToolsMeta( filePath, version );
+
+        // SubRace is offset by one due to Unknown.
+        var subRace = ( SubRace )( version == 1 ? flag + 1 : br.ReadByte() + 1 );
+        if( !Enum.IsDefined( typeof( SubRace ), subRace ) || subRace == SubRace.Unknown )
+        {
+            PluginLog.Error( $"Error while parsing .rgsp file:\n\t{subRace} is not a valid SubRace." );
+            return Invalid;
+        }
+
+        // Next byte is Gender. 1 is Female, 0 is Male.
+        var gender = br.ReadByte();
+        if( gender != 1 && gender != 0 )
+        {
+            PluginLog.Error( $"Error while parsing .rgsp file:\n\t{gender} is neither Male nor Female." );
+            return Invalid;
+        }
+
+        // Add the given values to the manipulations if they are not default.
+        void Add( RspAttribute attribute, float value )
+        {
+            var def = CmpFile.GetDefault( subRace, attribute );
+            if( value != def )
+            {
+                ret.MetaManipulations.Add( new RspManipulation( subRace, attribute, value ) );
+            }
+        }
+
+        if( gender == 1 )
+        {
+            Add( RspAttribute.FemaleMinSize, br.ReadSingle() );
+            Add( RspAttribute.FemaleMaxSize, br.ReadSingle() );
+            Add( RspAttribute.FemaleMinTail, br.ReadSingle() );
+            Add( RspAttribute.FemaleMaxTail, br.ReadSingle() );
+
+            Add( RspAttribute.BustMinX, br.ReadSingle() );
+            Add( RspAttribute.BustMinY, br.ReadSingle() );
+            Add( RspAttribute.BustMinZ, br.ReadSingle() );
+            Add( RspAttribute.BustMaxX, br.ReadSingle() );
+            Add( RspAttribute.BustMaxY, br.ReadSingle() );
+            Add( RspAttribute.BustMaxZ, br.ReadSingle() );
+        }
+        else
+        {
+            Add( RspAttribute.MaleMinSize, br.ReadSingle() );
+            Add( RspAttribute.MaleMaxSize, br.ReadSingle() );
+            Add( RspAttribute.MaleMinTail, br.ReadSingle() );
+            Add( RspAttribute.MaleMaxTail, br.ReadSingle() );
+        }
+
+        return ret;
+    }
+}

Penumbra/Import/TexToolsMeta.cs

@@ -0,0 +1,96 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using Dalamud.Logging;
+using Penumbra.Meta.Manipulations;
+
+namespace Penumbra.Import;
+
+// TexTools provices custom generated *.meta files for its modpacks, that contain changes to
+//     - imc files
+//     - eqp files
+//     - gmp files
+//     - est files
+//     - eqdp files
+// made by the mod. The filename determines to what the changes are applied, and the binary file itself contains changes.
+// We parse every *.meta file in a mod and combine all actual changes that do not keep data on default values and that can be applied to the game in a .json.
+// TexTools may also generate files that contain non-existing changes, e.g. *.imc files for weapon offhands, which will be ignored.
+// TexTools also provides .rgsp files, that contain changes to the racial scaling parameters in the human.cmp file.
+public partial class TexToolsMeta
+{
+    // An empty TexToolsMeta.
+    public static readonly TexToolsMeta Invalid = new( string.Empty, 0 );
+
+    // The info class determines the files or table locations the changes need to apply to from the filename.
+
+    public readonly uint                     Version;
+    public readonly string                   FilePath;
+    public readonly List< MetaManipulation > MetaManipulations = new();
+
+    public TexToolsMeta( byte[] data )
+    {
+        try
+        {
+            using var reader = new BinaryReader( new MemoryStream( data ) );
+            Version  = reader.ReadUInt32();
+            FilePath = ReadNullTerminated( reader );
+            var metaInfo    = new MetaFileInfo( FilePath );
+            var numHeaders  = reader.ReadUInt32();
+            var headerSize  = reader.ReadUInt32();
+            var headerStart = reader.ReadUInt32();
+            reader.BaseStream.Seek( headerStart, SeekOrigin.Begin );
+
+            List< (MetaManipulation.Type type, uint offset, int size) > entries = new();
+            for( var i = 0; i < numHeaders; ++i )
+            {
+                var currentOffset = reader.BaseStream.Position;
+                var type          = ( MetaManipulation.Type )reader.ReadUInt32();
+                var offset        = reader.ReadUInt32();
+                var size          = reader.ReadInt32();
+                entries.Add( ( type, offset, size ) );
+                reader.BaseStream.Seek( currentOffset + headerSize, SeekOrigin.Begin );
+            }
+
+            byte[]? ReadEntry( MetaManipulation.Type type )
+            {
+                var idx = entries.FindIndex( t => t.type == type );
+                if( idx < 0 )
+                {
+                    return null;
+                }
+
+                reader.BaseStream.Seek( entries[ idx ].offset, SeekOrigin.Begin );
+                return reader.ReadBytes( entries[ idx ].size );
+            }
+
+            DeserializeEqpEntry( metaInfo, ReadEntry( MetaManipulation.Type.Eqp ) );
+            DeserializeGmpEntry( metaInfo, ReadEntry( MetaManipulation.Type.Gmp ) );
+            DeserializeEqdpEntries( metaInfo, ReadEntry( MetaManipulation.Type.Eqdp ) );
+            DeserializeEstEntries( metaInfo, ReadEntry( MetaManipulation.Type.Est ) );
+            DeserializeImcEntries( metaInfo, ReadEntry( MetaManipulation.Type.Imc ) );
+        }
+        catch( Exception e )
+        {
+            FilePath = "";
+            PluginLog.Error( $"Error while parsing .meta file:\n{e}" );
+        }
+    }
+
+    private TexToolsMeta( string filePath, uint version )
+    {
+        FilePath = filePath;
+        Version  = version;
+    }
+
+    // Read a null terminated string from a binary reader.
+    private static string ReadNullTerminated( BinaryReader reader )
+    {
+        var builder = new System.Text.StringBuilder();
+        for( var c = reader.ReadChar(); c != 0; c = reader.ReadChar() )
+        {
+            builder.Append( c );
+        }
+
+        return builder.ToString();
+    }
+}

Penumbra/Import/TexToolsStructs.cs

@@ -0,0 +1,74 @@
+using System;
+using Penumbra.Mods;
+
+namespace Penumbra.Import;
+
+internal static class DefaultTexToolsData
+{
+    public const string Name          = "New Mod";
+    public const string Author        = "Unknown";
+    public const string Description   = "Mod imported from TexTools mod pack.";
+    public const string DefaultOption = "Default";
+}
+
+[Serializable]
+internal class SimpleMod
+{
+    public string  Name         = string.Empty;
+    public string  Category     = string.Empty;
+    public string  FullPath     = string.Empty;
+    public string  DatFile      = string.Empty;
+    public long    ModOffset    = 0;
+    public long    ModSize      = 0;
+    public object? ModPackEntry = null;
+}
+
+[Serializable]
+internal class ModPackPage
+{
+    public int        PageIndex = 0;
+    public ModGroup[] ModGroups = Array.Empty< ModGroup >();
+}
+
+[Serializable]
+internal class ModGroup
+{
+    public string       GroupName     = string.Empty;
+    public SelectType   SelectionType = SelectType.Single;
+    public OptionList[] OptionList    = Array.Empty< OptionList >();
+}
+
+[Serializable]
+internal class OptionList
+{
+    public string      Name          = string.Empty;
+    public string      Description   = string.Empty;
+    public string      ImagePath     = string.Empty;
+    public SimpleMod[] ModsJsons     = Array.Empty< SimpleMod >();
+    public string      GroupName     = string.Empty;
+    public SelectType  SelectionType = SelectType.Single;
+    public bool        IsChecked     = false;
+}
+
+[Serializable]
+internal class ExtendedModPack
+{
+    public string        PackVersion    = string.Empty;
+    public string        Name           = DefaultTexToolsData.Name;
+    public string        Author         = DefaultTexToolsData.Author;
+    public string        Version        = string.Empty;
+    public string        Description    = DefaultTexToolsData.Description;
+    public ModPackPage[] ModPackPages   = Array.Empty< ModPackPage >();
+    public SimpleMod[]   SimpleModsList = Array.Empty< SimpleMod >();
+}
+
+[Serializable]
+internal class SimpleModPack
+{
+    public string      TtmpVersion    = string.Empty;
+    public string      Name           = DefaultTexToolsData.Name;
+    public string      Author         = DefaultTexToolsData.Author;
+    public string      Version        = string.Empty;
+    public string      Description    = DefaultTexToolsData.Description;
+    public SimpleMod[] SimpleModsList = Array.Empty< SimpleMod >();
+}

Penumbra/Importer/ImporterState.cs

@@ -1,10 +0,0 @@
-namespace Penumbra.Importer
-{
-    public enum ImporterState
-    {
-        None,
-        WritingPackToDisk,
-        ExtractingModFiles,
-        Done,
-    }
-}

Penumbra/Importer/MagicTempFileStreamManagerAndDeleter.cs

@@ -1,25 +0,0 @@
-using System;
-using System.IO;
-using Penumbra.Util;
-
-namespace Penumbra.Importer
-{
-    public class MagicTempFileStreamManagerAndDeleter : PenumbraSqPackStream, IDisposable
-    {
-        private readonly FileStream _fileStream;
-
-        public MagicTempFileStreamManagerAndDeleter( FileStream stream )
-            : base( stream )
-            => _fileStream = stream;
-
-        public new void Dispose()
-        {
-            var filePath = _fileStream.Name;
-
-            base.Dispose();
-            _fileStream.Dispose();
-
-            File.Delete( filePath );
-        }
-    }
-}

Penumbra/Importer/Models/ExtendedModPack.cs

@@ -1,40 +0,0 @@
-using System.Collections.Generic;
-using Penumbra.Mods;
-
-namespace Penumbra.Importer.Models
-{
-    internal class OptionList
-    {
-        public string? Name { get; set; }
-        public string? Description { get; set; }
-        public string? ImagePath { get; set; }
-        public List< SimpleMod >? ModsJsons { get; set; }
-        public string? GroupName { get; set; }
-        public SelectType SelectionType { get; set; }
-        public bool IsChecked { get; set; }
-    }
-
-    internal class ModGroup
-    {
-        public string? GroupName { get; set; }
-        public SelectType SelectionType { get; set; }
-        public List< OptionList >? OptionList { get; set; }
-    }
-
-    internal class ModPackPage
-    {
-        public int PageIndex { get; set; }
-        public List< ModGroup >? ModGroups { get; set; }
-    }
-
-    internal class ExtendedModPack
-    {
-        public string? TTMPVersion { get; set; }
-        public string? Name { get; set; }
-        public string? Author { get; set; }
-        public string? Version { get; set; }
-        public string? Description { get; set; }
-        public List< ModPackPage >? ModPackPages { get; set; }
-        public List< SimpleMod >? SimpleModsList { get; set; }
-    }
-}

Penumbra/Importer/Models/SimpleModPack.cs

@@ -1,25 +0,0 @@
-using System.Collections.Generic;
-
-namespace Penumbra.Importer.Models
-{
-    internal class SimpleModPack
-    {
-        public string? TTMPVersion { get; set; }
-        public string? Name { get; set; }
-        public string? Author { get; set; }
-        public string? Version { get; set; }
-        public string? Description { get; set; }
-        public List< SimpleMod >? SimpleModsList { get; set; }
-    }
-
-    internal class SimpleMod
-    {
-        public string? Name { get; set; }
-        public string? Category { get; set; }
-        public string? FullPath { get; set; }
-        public long ModOffset { get; set; }
-        public long ModSize { get; set; }
-        public string? DatFile { get; set; }
-        public object? ModPackEntry { get; set; }
-    }
-}

Penumbra/Importer/TexToolsImport.cs

@@ -1,371 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Text;
-using Dalamud.Logging;
-using ICSharpCode.SharpZipLib.Zip;
-using Newtonsoft.Json;
-using Penumbra.Importer.Models;
-using Penumbra.Mods;
-using Penumbra.Util;
-using FileMode = System.IO.FileMode;
-
-namespace Penumbra.Importer;
-
-internal class TexToolsImport
-{
-    private readonly DirectoryInfo _outDirectory;
-
-    private const    string TempFileName = "textools-import";
-    private readonly string _resolvedTempFilePath;
-
-    public DirectoryInfo? ExtractedDirectory { get; private set; }
-
-    public ImporterState State { get; private set; }
-
-    public long TotalProgress { get; private set; }
-    public long CurrentProgress { get; private set; }
-
-    public float Progress
-    {
-        get
-        {
-            if( CurrentProgress != 0 )
-            {
-                // ReSharper disable twice RedundantCast
-                return ( float )CurrentProgress / ( float )TotalProgress;
-            }
-
-            return 0;
-        }
-    }
-
-    public string? CurrentModPack { get; private set; }
-
-    public TexToolsImport( DirectoryInfo outDirectory )
-    {
-        _outDirectory         = outDirectory;
-        _resolvedTempFilePath = Path.Combine( _outDirectory.FullName, TempFileName );
-    }
-
-    private static DirectoryInfo NewOptionDirectory( DirectoryInfo baseDir, string optionName )
-        => new(Path.Combine( baseDir.FullName, optionName.ReplaceBadXivSymbols() ));
-
-    public DirectoryInfo ImportModPack( FileInfo modPackFile )
-    {
-        CurrentModPack = modPackFile.Name;
-
-        var dir = VerifyVersionAndImport( modPackFile );
-
-        State = ImporterState.Done;
-        return dir;
-    }
-
-    private void WriteZipEntryToTempFile( Stream s )
-    {
-        var fs = new FileStream( _resolvedTempFilePath, FileMode.Create );
-        s.CopyTo( fs );
-        fs.Close();
-    }
-
-    // You can in no way rely on any file paths in TTMPs so we need to just do this, sorry
-    private static ZipEntry? FindZipEntry( ZipFile file, string fileName )
-    {
-        for( var i = 0; i < file.Count; i++ )
-        {
-            var entry = file[ i ];
-
-            if( entry.Name.Contains( fileName ) )
-            {
-                return entry;
-            }
-        }
-
-        return null;
-    }
-
-    private PenumbraSqPackStream GetMagicSqPackDeleterStream( ZipFile file, string entryName )
-    {
-        State = ImporterState.WritingPackToDisk;
-
-        // write shitty zip garbage to disk
-        var entry = FindZipEntry( file, entryName );
-        if( entry == null )
-        {
-            throw new FileNotFoundException( $"ZIP does not contain a file named {entryName}." );
-        }
-
-        using var s = file.GetInputStream( entry );
-
-        WriteZipEntryToTempFile( s );
-
-        var fs = new FileStream( _resolvedTempFilePath, FileMode.Open );
-        return new MagicTempFileStreamManagerAndDeleter( fs );
-    }
-
-    private DirectoryInfo VerifyVersionAndImport( FileInfo modPackFile )
-    {
-        using var zfs              = modPackFile.OpenRead();
-        using var extractedModPack = new ZipFile( zfs );
-
-        var mpl = FindZipEntry( extractedModPack, "TTMPL.mpl" );
-        if( mpl == null )
-        {
-            throw new FileNotFoundException( "ZIP does not contain a TTMPL.mpl file." );
-        }
-
-        var modRaw = GetStringFromZipEntry( extractedModPack, mpl, Encoding.UTF8 );
-
-        // At least a better validation than going by the extension.
-        if( modRaw.Contains( "\"TTMPVersion\":" ) )
-        {
-            if( modPackFile.Extension != ".ttmp2" )
-            {
-                PluginLog.Warning( $"File {modPackFile.FullName} seems to be a V2 TTMP, but has the wrong extension." );
-            }
-
-            return ImportV2ModPack( modPackFile, extractedModPack, modRaw );
-        }
-
-        if( modPackFile.Extension != ".ttmp" )
-        {
-            PluginLog.Warning( $"File {modPackFile.FullName} seems to be a V1 TTMP, but has the wrong extension." );
-        }
-
-        return ImportV1ModPack( modPackFile, extractedModPack, modRaw );
-    }
-
-    private DirectoryInfo ImportV1ModPack( FileInfo modPackFile, ZipFile extractedModPack, string modRaw )
-    {
-        PluginLog.Log( "    -> Importing V1 ModPack" );
-
-        var modListRaw = modRaw.Split(
-            new[] { "\r\n", "\r", "\n" },
-            StringSplitOptions.None
-        );
-
-        var modList = modListRaw.Select( JsonConvert.DeserializeObject< SimpleMod > );
-
-        // Open the mod data file from the modpack as a SqPackStream
-        using var modData = GetMagicSqPackDeleterStream( extractedModPack, "TTMPD.mpd" );
-
-        ExtractedDirectory = CreateModFolder( _outDirectory, Path.GetFileNameWithoutExtension( modPackFile.Name ) );
-        // Create a new ModMeta from the TTMP modlist info
-        Mod2.CreateMeta( ExtractedDirectory, string.IsNullOrEmpty( modPackFile.Name ) ? "New Mod" : modPackFile.Name, "Unknown",
-            "Mod imported from TexTools mod pack.", null, null );
-
-        ExtractSimpleModList( ExtractedDirectory, modList, modData );
-
-        return ExtractedDirectory;
-    }
-
-    private DirectoryInfo ImportV2ModPack( FileInfo _, ZipFile extractedModPack, string modRaw )
-    {
-        var modList = JsonConvert.DeserializeObject< SimpleModPack >( modRaw );
-
-        if( modList.TTMPVersion?.EndsWith( "s" ) ?? false )
-        {
-            return ImportSimpleV2ModPack( extractedModPack, modList );
-        }
-
-        if( modList.TTMPVersion?.EndsWith( "w" ) ?? false )
-        {
-            return ImportExtendedV2ModPack( extractedModPack, modRaw );
-        }
-
-        try
-        {
-            PluginLog.Warning( $"Unknown TTMPVersion {modList.TTMPVersion ?? "NULL"} given, trying to export as simple Modpack." );
-            return ImportSimpleV2ModPack( extractedModPack, modList );
-        }
-        catch( Exception e1 )
-        {
-            PluginLog.Warning( $"Exporting as simple Modpack failed with following error, retrying as extended Modpack:\n{e1}" );
-            try
-            {
-                return ImportExtendedV2ModPack( extractedModPack, modRaw );
-            }
-            catch( Exception e2 )
-            {
-                throw new IOException( "Exporting as extended Modpack failed, too. Version unsupported or file defect.", e2 );
-            }
-        }
-    }
-
-    public static DirectoryInfo CreateModFolder( DirectoryInfo outDirectory, string modListName )
-    {
-        var name = Path.GetFileName( modListName );
-        if( !name.Any() )
-        {
-            name = "_";
-        }
-
-        var newModFolderBase = NewOptionDirectory( outDirectory, name );
-        var newModFolder     = newModFolderBase;
-        var i                = 2;
-        while( newModFolder.Exists && i < 12 )
-        {
-            newModFolder = new DirectoryInfo( newModFolderBase.FullName + $" ({i++})" );
-        }
-
-        if( newModFolder.Exists )
-        {
-            throw new IOException( "Could not create mod folder: too many folders of the same name exist." );
-        }
-
-        newModFolder.Create();
-        return newModFolder;
-    }
-
-    private DirectoryInfo ImportSimpleV2ModPack( ZipFile extractedModPack, SimpleModPack modList )
-    {
-        PluginLog.Log( "    -> Importing Simple V2 ModPack" );
-
-        // Open the mod data file from the modpack as a SqPackStream
-        using var modData = GetMagicSqPackDeleterStream( extractedModPack, "TTMPD.mpd" );
-
-        ExtractedDirectory = CreateModFolder( _outDirectory, modList.Name ?? "New Mod" );
-        Mod2.CreateMeta( ExtractedDirectory, modList.Name ?? "New Mod", modList.Author ?? "Unknown", string.IsNullOrEmpty( modList.Description )
-            ? "Mod imported from TexTools mod pack"
-            : modList.Description, null, null );
-
-        ExtractSimpleModList( ExtractedDirectory, modList.SimpleModsList ?? Enumerable.Empty< SimpleMod >(), modData );
-        return ExtractedDirectory;
-    }
-
-    private DirectoryInfo ImportExtendedV2ModPack( ZipFile extractedModPack, string modRaw )
-    {
-        PluginLog.Log( "    -> Importing Extended V2 ModPack" );
-
-        var modList = JsonConvert.DeserializeObject< ExtendedModPack >( modRaw );
-
-        // Open the mod data file from the modpack as a SqPackStream
-        using var modData = GetMagicSqPackDeleterStream( extractedModPack, "TTMPD.mpd" );
-
-        ExtractedDirectory = CreateModFolder( _outDirectory, modList.Name ?? "New Mod" );
-        Mod2.CreateMeta( ExtractedDirectory, modList.Name ?? "New Mod", modList.Author ?? "Unknown",
-            string.IsNullOrEmpty( modList.Description ) ? "Mod imported from TexTools mod pack" : modList.Description, modList.Version, null );
-
-        if( modList.SimpleModsList != null )
-        {
-            ExtractSimpleModList( ExtractedDirectory, modList.SimpleModsList, modData );
-        }
-
-        if( modList.ModPackPages == null )
-        {
-            return ExtractedDirectory;
-        }
-
-        // Iterate through all pages
-        var options       = new List< ISubMod >();
-        var groupPriority = 0;
-        foreach( var page in modList.ModPackPages )
-        {
-            if( page.ModGroups == null )
-            {
-                continue;
-            }
-
-            foreach( var group in page.ModGroups.Where( group => group.GroupName != null && group.OptionList != null ) )
-            {
-                options.Clear();
-                var description = new StringBuilder();
-                var groupFolder = NewOptionDirectory( ExtractedDirectory, group.GroupName! );
-                if( groupFolder.Exists )
-                {
-                    groupFolder     =  new DirectoryInfo( groupFolder.FullName + $" ({page.PageIndex})" );
-                    group.GroupName += $" ({page.PageIndex})";
-                }
-
-                foreach( var option in group.OptionList!.Where( option => option.Name != null && option.ModsJsons != null ) )
-                {
-                    var optionFolder = NewOptionDirectory( groupFolder, option.Name! );
-                    ExtractSimpleModList( optionFolder, option.ModsJsons!, modData );
-                    options.Add( Mod2.CreateSubMod( ExtractedDirectory, optionFolder, option ) );
-                    description.Append( option.Description );
-                    if( !string.IsNullOrEmpty( option.Description ) )
-                    {
-                        description.Append( '\n' );
-                    }
-                }
-
-                Mod2.CreateOptionGroup( ExtractedDirectory, group, groupPriority++, description.ToString(), options );
-            }
-        }
-        Mod2.CreateDefaultFiles( ExtractedDirectory );
-        return ExtractedDirectory;
-    }
-
-    private void ImportMetaModPack( FileInfo file )
-    {
-        throw new NotImplementedException();
-    }
-
-    private void ExtractSimpleModList( DirectoryInfo outDirectory, IEnumerable< SimpleMod > mods, PenumbraSqPackStream dataStream )
-    {
-        State = ImporterState.ExtractingModFiles;
-
-        // haha allocation go brr
-        var wtf = mods.ToList();
-
-        TotalProgress += wtf.LongCount();
-
-        // Extract each SimpleMod into the new mod folder
-        foreach( var simpleMod in wtf.Where( m => m != null ) )
-        {
-            ExtractMod( outDirectory, simpleMod, dataStream );
-            CurrentProgress++;
-        }
-    }
-
-    private void ExtractMod( DirectoryInfo outDirectory, SimpleMod mod, PenumbraSqPackStream dataStream )
-    {
-        PluginLog.Log( "        -> Extracting {0} at {1}", mod.FullPath!, mod.ModOffset.ToString( "X" ) );
-
-        try
-        {
-            var data = dataStream.ReadFile< PenumbraSqPackStream.PenumbraFileResource >( mod.ModOffset );
-
-            var extractedFile = new FileInfo( Path.Combine( outDirectory.FullName, mod.FullPath! ) );
-            extractedFile.Directory?.Create();
-
-            if( extractedFile.FullName.EndsWith( "mdl" ) )
-            {
-                ProcessMdl( data.Data );
-            }
-
-            File.WriteAllBytes( extractedFile.FullName, data.Data );
-        }
-        catch( Exception ex )
-        {
-            PluginLog.LogError( ex, "Could not extract mod." );
-        }
-    }
-
-    private void ProcessMdl( byte[] mdl )
-    {
-        // Model file header LOD num
-        mdl[ 64 ] = 1;
-
-        // Model header LOD num
-        var stackSize            = BitConverter.ToUInt32( mdl, 4 );
-        var runtimeBegin         = stackSize    + 0x44;
-        var stringsLengthOffset  = runtimeBegin + 4;
-        var stringsLength        = BitConverter.ToUInt32( mdl, ( int )stringsLengthOffset );
-        var modelHeaderStart     = stringsLengthOffset + stringsLength + 4;
-        var modelHeaderLodOffset = 22;
-        mdl[ modelHeaderStart + modelHeaderLodOffset ] = 1;
-    }
-
-    private static Stream GetStreamFromZipEntry( ZipFile file, ZipEntry entry )
-        => file.GetInputStream( entry );
-
-    private static string GetStringFromZipEntry( ZipFile file, ZipEntry entry, Encoding encoding )
-    {
-        using var ms = new MemoryStream();
-        using var s  = GetStreamFromZipEntry( file, entry );
-        s.CopyTo( ms );
-        return encoding.GetString( ms.ToArray() );
-    }
-}

Penumbra/Importer/TexToolsMeta.cs

@@ -1,427 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Text.RegularExpressions;
-using Dalamud.Logging;
-using Penumbra.GameData.Enums;
-using Penumbra.GameData.Structs;
-using Penumbra.GameData.Util;
-using Penumbra.Meta.Files;
-using Penumbra.Meta.Manipulations;
-using Penumbra.Util;
-using ImcFile = Penumbra.Meta.Files.ImcFile;
-
-namespace Penumbra.Importer;
-
-// TexTools provices custom generated *.meta files for its modpacks, that contain changes to
-//     - imc files
-//     - eqp files
-//     - gmp files
-//     - est files
-//     - eqdp files
-// made by the mod. The filename determines to what the changes are applied, and the binary file itself contains changes.
-// We parse every *.meta file in a mod and combine all actual changes that do not keep data on default values and that can be applied to the game in a .json.
-// TexTools may also generate files that contain non-existing changes, e.g. *.imc files for weapon offhands, which will be ignored.
-// TexTools also provides .rgsp files, that contain changes to the racial scaling parameters in the human.cmp file.
-public class TexToolsMeta
-{
-    // The info class determines the files or table locations the changes need to apply to from the filename.
-    public class Info
-    {
-        private const string Pt   = @"(?'PrimaryType'[a-z]*)";                                              // language=regex
-        private const string Pp   = @"(?'PrimaryPrefix'[a-z])";                                             // language=regex
-        private const string Pi   = @"(?'PrimaryId'\d{4})";                                                 // language=regex
-        private const string Pir  = @"\k'PrimaryId'";                                                       // language=regex
-        private const string St   = @"(?'SecondaryType'[a-z]*)";                                            // language=regex
-        private const string Sp   = @"(?'SecondaryPrefix'[a-z])";                                           // language=regex
-        private const string Si   = @"(?'SecondaryId'\d{4})";                                               // language=regex
-        private const string File = @"\k'PrimaryPrefix'\k'PrimaryId'(\k'SecondaryPrefix'\k'SecondaryId')?"; // language=regex
-        private const string Slot = @"(_(?'Slot'[a-z]{3}))?";                                               // language=regex
-        private const string Ext  = @"\.meta";
-
-        // These are the valid regexes for .meta files that we are able to support at the moment.
-        private static readonly Regex HousingMeta = new($"bgcommon/hou/{Pt}/general/{Pi}/{Pir}{Ext}", RegexOptions.Compiled);
-        private static readonly Regex CharaMeta   = new($"chara/{Pt}/{Pp}{Pi}(/obj/{St}/{Sp}{Si})?/{File}{Slot}{Ext}", RegexOptions.Compiled);
-
-        public readonly ObjectType        PrimaryType;
-        public readonly BodySlot          SecondaryType;
-        public readonly ushort            PrimaryId;
-        public readonly ushort            SecondaryId;
-        public readonly EquipSlot         EquipSlot         = EquipSlot.Unknown;
-        public readonly CustomizationType CustomizationType = CustomizationType.Unknown;
-
-        private static bool ValidType( ObjectType type )
-        {
-            return type switch
-            {
-                ObjectType.Accessory     => true,
-                ObjectType.Character     => true,
-                ObjectType.Equipment     => true,
-                ObjectType.DemiHuman     => true,
-                ObjectType.Housing       => true,
-                ObjectType.Monster       => true,
-                ObjectType.Weapon        => true,
-                ObjectType.Icon          => false,
-                ObjectType.Font          => false,
-                ObjectType.Interface     => false,
-                ObjectType.LoadingScreen => false,
-                ObjectType.Map           => false,
-                ObjectType.Vfx           => false,
-                ObjectType.Unknown       => false,
-                ObjectType.World         => false,
-                _                        => false,
-            };
-        }
-
-        public Info( string fileName )
-            : this( new GamePath( fileName ) )
-        { }
-
-        public Info( GamePath fileName )
-        {
-            PrimaryType   = GameData.GameData.GetGamePathParser().PathToObjectType( fileName );
-            PrimaryId     = 0;
-            SecondaryType = BodySlot.Unknown;
-            SecondaryId   = 0;
-            if( !ValidType( PrimaryType ) )
-            {
-                PrimaryType = ObjectType.Unknown;
-                return;
-            }
-
-            if( PrimaryType == ObjectType.Housing )
-            {
-                var housingMatch = HousingMeta.Match( fileName );
-                if( housingMatch.Success )
-                {
-                    PrimaryId = ushort.Parse( housingMatch.Groups[ "PrimaryId" ].Value );
-                }
-
-                return;
-            }
-
-            var match = CharaMeta.Match( fileName );
-            if( !match.Success )
-            {
-                return;
-            }
-
-            PrimaryId = ushort.Parse( match.Groups[ "PrimaryId" ].Value );
-            if( match.Groups[ "Slot" ].Success )
-            {
-                switch( PrimaryType )
-                {
-                    case ObjectType.Equipment:
-                    case ObjectType.Accessory:
-                        if( Names.SuffixToEquipSlot.TryGetValue( match.Groups[ "Slot" ].Value, out var tmpSlot ) )
-                        {
-                            EquipSlot = tmpSlot;
-                        }
-
-                        break;
-                    case ObjectType.Character:
-                        if( Names.SuffixToCustomizationType.TryGetValue( match.Groups[ "Slot" ].Value, out var tmpCustom ) )
-                        {
-                            CustomizationType = tmpCustom;
-                        }
-
-                        break;
-                }
-            }
-
-            if( match.Groups[ "SecondaryType" ].Success
-            && Names.StringToBodySlot.TryGetValue( match.Groups[ "SecondaryType" ].Value, out SecondaryType ) )
-            {
-                SecondaryId = ushort.Parse( match.Groups[ "SecondaryId" ].Value );
-            }
-        }
-    }
-
-    public readonly uint                     Version;
-    public readonly string                   FilePath;
-    public readonly List< EqpManipulation >  EqpManipulations  = new();
-    public readonly List< GmpManipulation >  GmpManipulations  = new();
-    public readonly List< EqdpManipulation > EqdpManipulations = new();
-    public readonly List< EstManipulation >  EstManipulations  = new();
-    public readonly List< RspManipulation >  RspManipulations  = new();
-    public readonly List< ImcManipulation >  ImcManipulations  = new();
-
-    private void DeserializeEqpEntry( Info info, byte[]? data )
-    {
-        if( data == null || !info.EquipSlot.IsEquipment() )
-        {
-            return;
-        }
-
-        var value = Eqp.FromSlotAndBytes( info.EquipSlot, data );
-        var def   = new EqpManipulation( ExpandedEqpFile.GetDefault( info.PrimaryId ), info.EquipSlot, info.PrimaryId );
-        var manip = new EqpManipulation( value, info.EquipSlot, info.PrimaryId );
-        if( def.Entry != manip.Entry )
-        {
-            EqpManipulations.Add( manip );
-        }
-    }
-
-    private void DeserializeEqdpEntries( Info info, byte[]? data )
-    {
-        if( data == null )
-        {
-            return;
-        }
-
-        var       num    = data.Length / 5;
-        using var reader = new BinaryReader( new MemoryStream( data ) );
-        for( var i = 0; i < num; ++i )
-        {
-            var gr        = ( GenderRace )reader.ReadUInt32();
-            var byteValue = reader.ReadByte();
-            if( !gr.IsValid() || !info.EquipSlot.IsEquipment() && !info.EquipSlot.IsAccessory() )
-            {
-                continue;
-            }
-
-            var value = Eqdp.FromSlotAndBits( info.EquipSlot, ( byteValue & 1 ) == 1, ( byteValue & 2 ) == 2 );
-            var def = new EqdpManipulation( ExpandedEqdpFile.GetDefault( gr, info.EquipSlot.IsAccessory(), info.PrimaryId ), info.EquipSlot,
-                gr.Split().Item1, gr.Split().Item2, info.PrimaryId );
-            var manip = new EqdpManipulation( value, info.EquipSlot, gr.Split().Item1, gr.Split().Item2, info.PrimaryId );
-            if( def.Entry != manip.Entry )
-            {
-                EqdpManipulations.Add( manip );
-            }
-        }
-    }
-
-    private void DeserializeGmpEntry( Info info, byte[]? data )
-    {
-        if( data == null )
-        {
-            return;
-        }
-
-        using var reader = new BinaryReader( new MemoryStream( data ) );
-        var       value  = ( GmpEntry )reader.ReadUInt32();
-        value.UnknownTotal = reader.ReadByte();
-        var def = ExpandedGmpFile.GetDefault( info.PrimaryId );
-        if( value != def )
-        {
-            GmpManipulations.Add( new GmpManipulation( value, info.PrimaryId ) );
-        }
-    }
-
-    private void DeserializeEstEntries( Info info, byte[]? data )
-    {
-        if( data == null )
-        {
-            return;
-        }
-
-        var       num    = data.Length / 6;
-        using var reader = new BinaryReader( new MemoryStream( data ) );
-        for( var i = 0; i < num; ++i )
-        {
-            var gr    = ( GenderRace )reader.ReadUInt16();
-            var id    = reader.ReadUInt16();
-            var value = reader.ReadUInt16();
-            var type = ( info.SecondaryType, info.EquipSlot ) switch
-            {
-                (BodySlot.Face, _)  => EstManipulation.EstType.Face,
-                (BodySlot.Hair, _)  => EstManipulation.EstType.Hair,
-                (_, EquipSlot.Head) => EstManipulation.EstType.Head,
-                (_, EquipSlot.Body) => EstManipulation.EstType.Body,
-                _                   => ( EstManipulation.EstType )0,
-            };
-            if( !gr.IsValid() || type == 0 )
-            {
-                continue;
-            }
-
-            var def = EstFile.GetDefault( type, gr, id );
-            if( def != value )
-            {
-                EstManipulations.Add( new EstManipulation( gr.Split().Item1, gr.Split().Item2, type, id, value ) );
-            }
-        }
-    }
-
-    private void DeserializeImcEntries( Info info, byte[]? data )
-    {
-        if( data == null )
-        {
-            return;
-        }
-
-        var       num    = data.Length / 6;
-        using var reader = new BinaryReader( new MemoryStream( data ) );
-        var       values = reader.ReadStructures< ImcEntry >( num );
-        ushort    i      = 0;
-        try
-        {
-            if( info.PrimaryType is ObjectType.Equipment or ObjectType.Accessory )
-            {
-                var def     = new ImcFile( new ImcManipulation( info.EquipSlot, i, info.PrimaryId, new ImcEntry() ).GamePath() );
-                var partIdx = ImcFile.PartIndex( info.EquipSlot );
-                foreach( var value in values )
-                {
-                    if( !value.Equals( def.GetEntry( partIdx, i ) ) )
-                    {
-                        ImcManipulations.Add( new ImcManipulation( info.EquipSlot, i, info.PrimaryId, value ) );
-                    }
-
-                    ++i;
-                }
-            }
-            else
-            {
-                var def = new ImcFile( new ImcManipulation( info.PrimaryType, info.SecondaryType, info.PrimaryId, info.SecondaryId, i,
-                    new ImcEntry() ).GamePath() );
-                foreach( var value in values )
-                {
-                    if( !value.Equals( def.GetEntry( 0, i ) ) )
-                    {
-                        ImcManipulations.Add( new ImcManipulation( info.PrimaryType, info.SecondaryType, info.PrimaryId, info.SecondaryId, i,
-                            value ) );
-                    }
-
-                    ++i;
-                }
-            }
-        }
-        catch( Exception e )
-        {
-            PluginLog.Warning( $"Could not compute IMC manipulation for {info.PrimaryType} {info.PrimaryId}. This is in all likelihood due to TexTools corrupting your index files.\n"
-              + $"If the following error looks like Lumina is having trouble to read an IMC file, please do a do-over in TexTools:\n{e}" );
-        }
-    }
-
-    private static string ReadNullTerminated( BinaryReader reader )
-    {
-        var builder = new System.Text.StringBuilder();
-        for( var c = reader.ReadChar(); c != 0; c = reader.ReadChar() )
-        {
-            builder.Append( c );
-        }
-
-        return builder.ToString();
-    }
-
-    public TexToolsMeta( byte[] data )
-    {
-        try
-        {
-            using var reader = new BinaryReader( new MemoryStream( data ) );
-            Version  = reader.ReadUInt32();
-            FilePath = ReadNullTerminated( reader );
-            var metaInfo    = new Info( FilePath );
-            var numHeaders  = reader.ReadUInt32();
-            var headerSize  = reader.ReadUInt32();
-            var headerStart = reader.ReadUInt32();
-            reader.BaseStream.Seek( headerStart, SeekOrigin.Begin );
-
-            List< (MetaManipulation.Type type, uint offset, int size) > entries = new();
-            for( var i = 0; i < numHeaders; ++i )
-            {
-                var currentOffset = reader.BaseStream.Position;
-                var type          = ( MetaManipulation.Type )reader.ReadUInt32();
-                var offset        = reader.ReadUInt32();
-                var size          = reader.ReadInt32();
-                entries.Add( ( type, offset, size ) );
-                reader.BaseStream.Seek( currentOffset + headerSize, SeekOrigin.Begin );
-            }
-
-            byte[]? ReadEntry( MetaManipulation.Type type )
-            {
-                var idx = entries.FindIndex( t => t.type == type );
-                if( idx < 0 )
-                {
-                    return null;
-                }
-
-                reader.BaseStream.Seek( entries[ idx ].offset, SeekOrigin.Begin );
-                return reader.ReadBytes( entries[ idx ].size );
-            }
-
-            DeserializeEqpEntry( metaInfo, ReadEntry( MetaManipulation.Type.Eqp ) );
-            DeserializeGmpEntry( metaInfo, ReadEntry( MetaManipulation.Type.Gmp ) );
-            DeserializeEqdpEntries( metaInfo, ReadEntry( MetaManipulation.Type.Eqdp ) );
-            DeserializeEstEntries( metaInfo, ReadEntry( MetaManipulation.Type.Est ) );
-            DeserializeImcEntries( metaInfo, ReadEntry( MetaManipulation.Type.Imc ) );
-        }
-        catch( Exception e )
-        {
-            FilePath = "";
-            PluginLog.Error( $"Error while parsing .meta file:\n{e}" );
-        }
-    }
-
-    private TexToolsMeta( string filePath, uint version )
-    {
-        FilePath = filePath;
-        Version  = version;
-    }
-
-    public static TexToolsMeta Invalid = new(string.Empty, 0);
-
-    public static TexToolsMeta FromRgspFile( string filePath, byte[] data )
-    {
-        if( data.Length != 45 && data.Length != 42 )
-        {
-            PluginLog.Error( "Error while parsing .rgsp file:\n\tInvalid number of bytes." );
-            return Invalid;
-        }
-
-        using var s       = new MemoryStream( data );
-        using var br      = new BinaryReader( s );
-        var       flag    = br.ReadByte();
-        var       version = flag != 255 ? ( uint )1 : br.ReadUInt16();
-
-        var ret = new TexToolsMeta( filePath, version );
-
-        var subRace = ( SubRace )( version == 1 ? flag + 1 : br.ReadByte() + 1 );
-        if( !Enum.IsDefined( typeof( SubRace ), subRace ) || subRace == SubRace.Unknown )
-        {
-            PluginLog.Error( $"Error while parsing .rgsp file:\n\t{subRace} is not a valid SubRace." );
-            return Invalid;
-        }
-
-        var gender = br.ReadByte();
-        if( gender != 1 && gender != 0 )
-        {
-            PluginLog.Error( $"Error while parsing .rgsp file:\n\t{gender} is neither Male nor Female." );
-            return Invalid;
-        }
-
-        void Add( RspAttribute attribute, float value )
-        {
-            var def = CmpFile.GetDefault( subRace, attribute );
-            if( value != def )
-            {
-                ret!.RspManipulations.Add( new RspManipulation( subRace, attribute, value ) );
-            }
-        }
-
-        if( gender == 1 )
-        {
-            Add( RspAttribute.FemaleMinSize, br.ReadSingle() );
-            Add( RspAttribute.FemaleMaxSize, br.ReadSingle() );
-            Add( RspAttribute.FemaleMinTail, br.ReadSingle() );
-            Add( RspAttribute.FemaleMaxTail, br.ReadSingle() );
-
-            Add( RspAttribute.BustMinX, br.ReadSingle() );
-            Add( RspAttribute.BustMinY, br.ReadSingle() );
-            Add( RspAttribute.BustMinZ, br.ReadSingle() );
-            Add( RspAttribute.BustMaxX, br.ReadSingle() );
-            Add( RspAttribute.BustMaxY, br.ReadSingle() );
-            Add( RspAttribute.BustMaxZ, br.ReadSingle() );
-        }
-        else
-        {
-            Add( RspAttribute.MaleMinSize, br.ReadSingle() );
-            Add( RspAttribute.MaleMaxSize, br.ReadSingle() );
-            Add( RspAttribute.MaleMinTail, br.ReadSingle() );
-            Add( RspAttribute.MaleMaxTail, br.ReadSingle() );
-        }
-
-        return ret;
-    }
-}

Penumbra/Interop/Loader/ResourceLoader.Replacement.cs

@@ -8,7 +8,6 @@ using FFXIVClientStructs.FFXIV.Client.System.Resource;
 using Penumbra.GameData.ByteString;
 using Penumbra.GameData.Enums;
 using Penumbra.Interop.Structs;
-using Penumbra.Mods;
 using FileMode = Penumbra.Interop.Structs.FileMode;
 using ResourceHandle = FFXIVClientStructs.FFXIV.Client.System.Resource.Handle.ResourceHandle;
 

Penumbra/Meta/Manager/MetaManager.Imc.cs

@@ -22,7 +22,6 @@ public partial class MetaManager
         private readonly ModCollection _collection;
         private static   int           _imcManagerCount;
 
-
         public MetaManagerImc( ModCollection collection )
         {
             _collection = collection;

Penumbra/Meta/Manipulations/MetaManipulation.cs

@@ -12,91 +12,10 @@ public interface IMetaManipulation
     public int FileIndex();
 }
 
-public interface IMetaManipulation< T > : IMetaManipulation, IComparable< T >, IEquatable< T > where T : struct
+public interface IMetaManipulation< T >
+    : IMetaManipulation, IComparable< T >, IEquatable< T > where T : struct
 { }
 
-public struct ManipulationSet< T > where T : struct, IMetaManipulation< T >
-{
-    private List< T >? _data = null;
-
-    public IReadOnlyList< T > Data
-        => ( IReadOnlyList< T >? )_data ?? Array.Empty< T >();
-
-    public int Count
-        => _data?.Count ?? 0;
-
-    public ManipulationSet( int count = 0 )
-    {
-        if( count > 0 )
-        {
-            _data = new List< T >( count );
-        }
-    }
-
-    public bool TryAdd( T manip )
-    {
-        if( _data == null )
-        {
-            _data = new List< T > { manip };
-            return true;
-        }
-
-        var idx = _data.BinarySearch( manip );
-        if( idx >= 0 )
-        {
-            return false;
-        }
-
-        _data.Insert( ~idx, manip );
-        return true;
-    }
-
-    public int Set( T manip )
-    {
-        if( _data == null )
-        {
-            _data = new List< T > { manip };
-            return 0;
-        }
-
-        var idx = _data.BinarySearch( manip );
-        if( idx >= 0 )
-        {
-            _data[ idx ] = manip;
-            return idx;
-        }
-
-        idx = ~idx;
-        _data.Insert( idx, manip );
-        return idx;
-    }
-
-    public bool TryGet( T manip, out T value )
-    {
-        var idx = _data?.BinarySearch( manip ) ?? -1;
-        if( idx < 0 )
-        {
-            value = default;
-            return false;
-        }
-
-        value = _data![ idx ];
-        return true;
-    }
-
-    public bool Remove( T manip )
-    {
-        var idx = _data?.BinarySearch( manip ) ?? -1;
-        if( idx < 0 )
-        {
-            return false;
-        }
-
-        _data!.RemoveAt( idx );
-        return true;
-    }
-}
-
 [StructLayout( LayoutKind.Explicit, Pack = 1, Size = 16 )]
 public readonly struct MetaManipulation : IEquatable< MetaManipulation >, IComparable< MetaManipulation >
 {

Penumbra/MigrateConfiguration.cs

@@ -103,7 +103,7 @@ public partial class Configuration
         private void ResettleSortOrder()
         {
             ModSortOrder = _data[ nameof( ModSortOrder ) ]?.ToObject< Dictionary< string, string > >() ?? ModSortOrder;
-            var       file   = Mod2.Manager.ModFileSystemFile;
+            var       file   = ModFileSystem.ModFileSystemFile;
             using var stream = File.Open( file, File.Exists( file ) ? FileMode.Truncate : FileMode.CreateNew );
             using var writer = new StreamWriter( stream );
             using var j      = new JsonTextWriter( writer );
@@ -169,7 +169,7 @@ public partial class Configuration
                 var data = JArray.Parse( text );
 
                 var maxPriority = 0;
-                var dict        = new Dictionary< string, ModSettings2.SavedSettings >();
+                var dict        = new Dictionary< string, ModSettings.SavedSettings >();
                 foreach( var setting in data.Cast< JObject >() )
                 {
                     var modName  = ( string )setting[ "FolderName" ]!;
@@ -178,7 +178,7 @@ public partial class Configuration
                     var settings = setting[ "Settings" ]!.ToObject< Dictionary< string, uint > >()
                      ?? setting[ "Conf" ]!.ToObject< Dictionary< string, uint > >();
 
-                    dict[ modName ] = new ModSettings2.SavedSettings()
+                    dict[ modName ] = new ModSettings.SavedSettings()
                     {
                         Enabled  = enabled,
                         Priority = priority,

Penumbra/Mods/Manager/Mod.Manager.BasePath.cs

@@ -0,0 +1,65 @@
+using System;
+using System.IO;
+using System.Linq;
+using Dalamud.Logging;
+
+namespace Penumbra.Mods;
+
+public partial class Mod
+{
+    public partial class Manager
+    {
+        public delegate void ModPathChangeDelegate( ModPathChangeType type, Mod mod, DirectoryInfo? oldDirectory,
+            DirectoryInfo? newDirectory );
+
+        public event ModPathChangeDelegate? ModPathChanged;
+
+        public void MoveModDirectory( Index idx, DirectoryInfo newDirectory )
+        {
+            var mod = this[ idx ];
+            // TODO
+        }
+
+        public void DeleteMod( int idx )
+        {
+            var mod = this[ idx ];
+            if( Directory.Exists( mod.BasePath.FullName ) )
+            {
+                try
+                {
+                    Directory.Delete( mod.BasePath.FullName, true );
+                }
+                catch( Exception e )
+                {
+                    PluginLog.Error( $"Could not delete the mod {mod.BasePath.Name}:\n{e}" );
+                }
+            }
+
+            _mods.RemoveAt( idx );
+            foreach( var remainingMod in _mods.Skip( idx ) )
+            {
+                --remainingMod.Index;
+            }
+
+            ModPathChanged?.Invoke( ModPathChangeType.Deleted, mod, mod.BasePath, null );
+        }
+
+        public void AddMod( DirectoryInfo modFolder )
+        {
+            if( _mods.Any( m => m.BasePath.Name == modFolder.Name ) )
+            {
+                return;
+            }
+
+            var mod = LoadMod( modFolder );
+            if( mod == null )
+            {
+                return;
+            }
+
+            mod.Index = _mods.Count;
+            _mods.Add( mod );
+            ModPathChanged?.Invoke( ModPathChangeType.Added, mod, null, mod.BasePath );
+        }
+    }
+}

Penumbra/Mods/Manager/Mod.Manager.Meta.cs

@@ -2,11 +2,11 @@ using System;
 
 namespace Penumbra.Mods;
 
-public sealed partial class Mod2
+public sealed partial class Mod
 {
     public partial class Manager
     {
-        public delegate void ModMetaChangeDelegate( MetaChangeType type, Mod2 mod );
+        public delegate void ModMetaChangeDelegate( MetaChangeType type, Mod mod, string? oldName );
         public event ModMetaChangeDelegate? ModMetaChanged;
 
         public void ChangeModName( Index idx, string newName )
@@ -14,9 +14,10 @@ public sealed partial class Mod2
             var mod = this[ idx ];
             if( mod.Name != newName )
             {
+                var oldName = mod.Name;
                 mod.Name = newName;
                 mod.SaveMeta();
-                ModMetaChanged?.Invoke( MetaChangeType.Name, mod );
+                ModMetaChanged?.Invoke( MetaChangeType.Name, mod, oldName.Text );
             }
         }
 
@@ -27,7 +28,7 @@ public sealed partial class Mod2
             {
                 mod.Author = newAuthor;
                 mod.SaveMeta();
-                ModMetaChanged?.Invoke( MetaChangeType.Author, mod );
+                ModMetaChanged?.Invoke( MetaChangeType.Author, mod, null );
             }
         }
 
@@ -38,7 +39,7 @@ public sealed partial class Mod2
             {
                 mod.Description = newDescription;
                 mod.SaveMeta();
-                ModMetaChanged?.Invoke( MetaChangeType.Description, mod );
+                ModMetaChanged?.Invoke( MetaChangeType.Description, mod, null );
             }
         }
 
@@ -49,7 +50,7 @@ public sealed partial class Mod2
             {
                 mod.Version = newVersion;
                 mod.SaveMeta();
-                ModMetaChanged?.Invoke( MetaChangeType.Version, mod );
+                ModMetaChanged?.Invoke( MetaChangeType.Version, mod, null );
             }
         }
 
@@ -60,7 +61,7 @@ public sealed partial class Mod2
             {
                 mod.Website = newWebsite;
                 mod.SaveMeta();
-                ModMetaChanged?.Invoke( MetaChangeType.Website, mod );
+                ModMetaChanged?.Invoke( MetaChangeType.Website, mod, null );
             }
         }
     }

Penumbra/Mods/Manager/Mod.Manager.Options.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using Dalamud.Logging;
+using OtterGui.Filesystem;
 using Penumbra.GameData.ByteString;
 using Penumbra.Meta.Manipulations;
 using Penumbra.Util;
@@ -13,25 +14,43 @@ public enum ModOptionChangeType
     GroupRenamed,
     GroupAdded,
     GroupDeleted,
+    GroupMoved,
+    GroupTypeChanged,
     PriorityChanged,
     OptionAdded,
     OptionDeleted,
-    OptionChanged,
+    OptionMoved,
+    OptionFilesChanged,
+    OptionSwapsChanged,
+    OptionMetaChanged,
+    OptionUpdated,
     DisplayChange,
 }
 
-public sealed partial class Mod2
+public sealed partial class Mod
 {
     public sealed partial class Manager
     {
-        public delegate void ModOptionChangeDelegate( ModOptionChangeType type, Mod2 mod, int groupIdx, int optionIdx );
+        public delegate void ModOptionChangeDelegate( ModOptionChangeType type, Mod mod, int groupIdx, int optionIdx, int movedToIdx );
         public event ModOptionChangeDelegate ModOptionChanged;
 
-        public void RenameModGroup( Mod2 mod, int groupIdx, string newName )
+        public void ChangeModGroupType( Mod mod, int groupIdx, SelectType type )
+        {
+            var group = mod._groups[ groupIdx ];
+            if( group.Type == type )
+            {
+                return;
+            }
+
+            mod._groups[ groupIdx ] = group.Convert( type );
+            ModOptionChanged.Invoke( ModOptionChangeType.GroupTypeChanged, mod, groupIdx, -1, -1 );
+        }
+
+        public void RenameModGroup( Mod mod, int groupIdx, string newName )
         {
             var group   = mod._groups[ groupIdx ];
             var oldName = group.Name;
-            if( oldName == newName || !VerifyFileName( mod, group, newName ) )
+            if( oldName == newName || !VerifyFileName( mod, group, newName, true ) )
             {
                 return;
             }
@@ -43,33 +62,41 @@ public sealed partial class Mod2
                 _                => newName,
             };
 
-            ModOptionChanged.Invoke( ModOptionChangeType.GroupRenamed, mod, groupIdx, 0 );
+            ModOptionChanged.Invoke( ModOptionChangeType.GroupRenamed, mod, groupIdx, -1, -1 );
         }
 
-        public void AddModGroup( Mod2 mod, SelectType type, string newName )
+        public void AddModGroup( Mod mod, SelectType type, string newName )
         {
-            if( !VerifyFileName( mod, null, newName ) )
+            if( !VerifyFileName( mod, null, newName, true ) )
             {
                 return;
             }
 
-            var maxPriority = mod._groups.Max( o => o.Priority ) + 1;
+            var maxPriority = mod._groups.Count == 0 ? 0 : mod._groups.Max( o => o.Priority ) + 1;
 
             mod._groups.Add( type == SelectType.Multi
                 ? new MultiModGroup { Name  = newName, Priority = maxPriority }
                 : new SingleModGroup { Name = newName, Priority = maxPriority } );
-            ModOptionChanged.Invoke( ModOptionChangeType.GroupAdded, mod, mod._groups.Count - 1, 0 );
+            ModOptionChanged.Invoke( ModOptionChangeType.GroupAdded, mod, mod._groups.Count - 1, -1, -1 );
         }
 
-        public void DeleteModGroup( Mod2 mod, int groupIdx )
+        public void DeleteModGroup( Mod mod, int groupIdx )
         {
             var group = mod._groups[ groupIdx ];
             mod._groups.RemoveAt( groupIdx );
-            group.DeleteFile( BasePath );
+            group.DeleteFile( mod.BasePath );
-            ModOptionChanged.Invoke( ModOptionChangeType.GroupDeleted, mod, groupIdx, 0 );
+            ModOptionChanged.Invoke( ModOptionChangeType.GroupDeleted, mod, groupIdx, -1, -1 );
         }
 
-        public void ChangeGroupDescription( Mod2 mod, int groupIdx, string newDescription )
+        public void MoveModGroup( Mod mod, int groupIdxFrom, int groupIdxTo )
+        {
+            if( mod._groups.Move( groupIdxFrom, groupIdxTo ) )
+            {
+                ModOptionChanged.Invoke( ModOptionChangeType.GroupMoved, mod, groupIdxFrom, -1, groupIdxTo );
+            }
+        }
+
+        public void ChangeGroupDescription( Mod mod, int groupIdx, string newDescription )
         {
             var group = mod._groups[ groupIdx ];
             if( group.Description == newDescription )
@@ -83,10 +110,10 @@ public sealed partial class Mod2
                 MultiModGroup m  => m.Description = newDescription,
                 _                => newDescription,
             };
-            ModOptionChanged.Invoke( ModOptionChangeType.DisplayChange, mod, groupIdx, 0 );
+            ModOptionChanged.Invoke( ModOptionChangeType.DisplayChange, mod, groupIdx, -1, -1 );
         }
 
-        public void ChangeGroupPriority( Mod2 mod, int groupIdx, int newPriority )
+        public void ChangeGroupPriority( Mod mod, int groupIdx, int newPriority )
         {
             var group = mod._groups[ groupIdx ];
             if( group.Priority == newPriority )
@@ -100,14 +127,14 @@ public sealed partial class Mod2
                 MultiModGroup m  => m.Priority = newPriority,
                 _                => newPriority,
             };
-            ModOptionChanged.Invoke( ModOptionChangeType.PriorityChanged, mod, groupIdx, -1 );
+            ModOptionChanged.Invoke( ModOptionChangeType.PriorityChanged, mod, groupIdx, -1, -1 );
         }
 
-        public void ChangeOptionPriority( Mod2 mod, int groupIdx, int optionIdx, int newPriority )
+        public void ChangeOptionPriority( Mod mod, int groupIdx, int optionIdx, int newPriority )
         {
             switch( mod._groups[ groupIdx ] )
             {
-                case SingleModGroup s:
+                case SingleModGroup:
                     ChangeGroupPriority( mod, groupIdx, newPriority );
                     break;
                 case MultiModGroup m:
@@ -117,12 +144,12 @@ public sealed partial class Mod2
                     }
 
                     m.PrioritizedOptions[ optionIdx ] = ( m.PrioritizedOptions[ optionIdx ].Mod, newPriority );
-                    ModOptionChanged.Invoke( ModOptionChangeType.PriorityChanged, mod, groupIdx, optionIdx );
+                    ModOptionChanged.Invoke( ModOptionChangeType.PriorityChanged, mod, groupIdx, optionIdx, -1 );
                     return;
             }
         }
 
-        public void RenameOption( Mod2 mod, int groupIdx, int optionIdx, string newName )
+        public void RenameOption( Mod mod, int groupIdx, int optionIdx, string newName )
         {
             switch( mod._groups[ groupIdx ] )
             {
@@ -145,10 +172,10 @@ public sealed partial class Mod2
                     return;
             }
 
-            ModOptionChanged.Invoke( ModOptionChangeType.DisplayChange, mod, groupIdx, optionIdx );
+            ModOptionChanged.Invoke( ModOptionChangeType.DisplayChange, mod, groupIdx, optionIdx, -1 );
         }
 
-        public void AddOption( Mod2 mod, int groupIdx, string newName )
+        public void AddOption( Mod mod, int groupIdx, string newName )
         {
             switch( mod._groups[ groupIdx ] )
             {
@@ -160,10 +187,30 @@ public sealed partial class Mod2
                     break;
             }
 
-            ModOptionChanged.Invoke( ModOptionChangeType.OptionAdded, mod, groupIdx, mod._groups[ groupIdx ].Count - 1 );
+            ModOptionChanged.Invoke( ModOptionChangeType.OptionAdded, mod, groupIdx, mod._groups[ groupIdx ].Count - 1, -1 );
         }
 
-        public void DeleteOption( Mod2 mod, int groupIdx, int optionIdx )
+        public void AddOption( Mod mod, int groupIdx, ISubMod option, int priority = 0 )
+        {
+            if( option is not SubMod o )
+            {
+                return;
+            }
+
+            switch( mod._groups[ groupIdx ] )
+            {
+                case SingleModGroup s:
+                    s.OptionData.Add( o );
+                    break;
+                case MultiModGroup m:
+                    m.PrioritizedOptions.Add( ( o, priority ) );
+                    break;
+            }
+
+            ModOptionChanged.Invoke( ModOptionChangeType.OptionAdded, mod, groupIdx, mod._groups[ groupIdx ].Count - 1, -1 );
+        }
+
+        public void DeleteOption( Mod mod, int groupIdx, int optionIdx )
         {
             switch( mod._groups[ groupIdx ] )
             {
@@ -175,10 +222,19 @@ public sealed partial class Mod2
                     break;
             }
 
-            ModOptionChanged.Invoke( ModOptionChangeType.OptionDeleted, mod, groupIdx, optionIdx );
+            ModOptionChanged.Invoke( ModOptionChangeType.OptionDeleted, mod, groupIdx, optionIdx, -1 );
         }
 
-        public void OptionSetManipulation( Mod2 mod, int groupIdx, int optionIdx, MetaManipulation manip, bool delete = false )
+        public void MoveOption( Mod mod, int groupIdx, int optionIdxFrom, int optionIdxTo )
+        {
+            var group = mod._groups[ groupIdx ];
+            if( group.MoveOption( optionIdxFrom, optionIdxTo ) )
+            {
+                ModOptionChanged.Invoke( ModOptionChangeType.OptionMoved, mod, groupIdx, optionIdxFrom, optionIdxTo );
+            }
+        }
+
+        public void OptionSetManipulation( Mod mod, int groupIdx, int optionIdx, MetaManipulation manip, bool delete = false )
         {
             var subMod = GetSubMod( mod, groupIdx, optionIdx );
             if( delete )
@@ -206,41 +262,94 @@ public sealed partial class Mod2
                 }
             }
 
-            ModOptionChanged.Invoke( ModOptionChangeType.OptionChanged, mod, groupIdx, optionIdx );
+            ModOptionChanged.Invoke( ModOptionChangeType.OptionMetaChanged, mod, groupIdx, optionIdx, -1 );
         }
 
-        public void OptionSetFile( Mod2 mod, int groupIdx, int optionIdx, Utf8GamePath gamePath, FullPath? newPath )
+        public void OptionSetManipulations( Mod mod, int groupIdx, int optionIdx, HashSet< MetaManipulation > manipulations )
+        {
+            var subMod = GetSubMod( mod, groupIdx, optionIdx );
+            if( subMod.Manipulations.SetEquals( manipulations ) )
+            {
+                return;
+            }
+
+            subMod.ManipulationData.Clear();
+            subMod.ManipulationData.UnionWith( manipulations );
+            ModOptionChanged.Invoke( ModOptionChangeType.OptionMetaChanged, mod, groupIdx, optionIdx, -1 );
+        }
+
+        public void OptionSetFile( Mod mod, int groupIdx, int optionIdx, Utf8GamePath gamePath, FullPath? newPath )
         {
             var subMod = GetSubMod( mod, groupIdx, optionIdx );
             if( OptionSetFile( subMod.FileData, gamePath, newPath ) )
             {
-                ModOptionChanged.Invoke( ModOptionChangeType.OptionChanged, mod, groupIdx, optionIdx );
+                ModOptionChanged.Invoke( ModOptionChangeType.OptionFilesChanged, mod, groupIdx, optionIdx, -1 );
             }
         }
 
-        public void OptionSetFileSwap( Mod2 mod, int groupIdx, int optionIdx, Utf8GamePath gamePath, FullPath? newPath )
+        public void OptionSetFiles( Mod mod, int groupIdx, int optionIdx, Dictionary< Utf8GamePath, FullPath > replacements )
+        {
+            var subMod = GetSubMod( mod, groupIdx, optionIdx );
+            if( subMod.FileData.Equals( replacements ) )
+            {
+                return;
+            }
+
+            subMod.FileData.SetTo( replacements );
+            ModOptionChanged.Invoke( ModOptionChangeType.OptionFilesChanged, mod, groupIdx, optionIdx, -1 );
+        }
+
+        public void OptionSetFileSwap( Mod mod, int groupIdx, int optionIdx, Utf8GamePath gamePath, FullPath? newPath )
         {
             var subMod = GetSubMod( mod, groupIdx, optionIdx );
             if( OptionSetFile( subMod.FileSwapData, gamePath, newPath ) )
             {
-                ModOptionChanged.Invoke( ModOptionChangeType.OptionChanged, mod, groupIdx, optionIdx );
+                ModOptionChanged.Invoke( ModOptionChangeType.OptionSwapsChanged, mod, groupIdx, optionIdx, -1 );
             }
         }
 
-        private bool VerifyFileName( Mod2 mod, IModGroup? group, string newName )
+        public void OptionSetFileSwaps( Mod mod, int groupIdx, int optionIdx, Dictionary< Utf8GamePath, FullPath > swaps )
+        {
+            var subMod = GetSubMod( mod, groupIdx, optionIdx );
+            if( subMod.FileSwapData.Equals( swaps ) )
+            {
+                return;
+            }
+
+            subMod.FileSwapData.SetTo( swaps );
+            ModOptionChanged.Invoke( ModOptionChangeType.OptionSwapsChanged, mod, groupIdx, optionIdx, -1 );
+        }
+
+        public void OptionUpdate( Mod mod, int groupIdx, int optionIdx, Dictionary< Utf8GamePath, FullPath > replacements,
+            HashSet< MetaManipulation > manipulations, Dictionary< Utf8GamePath, FullPath > swaps )
+        {
+            var subMod = GetSubMod( mod, groupIdx, optionIdx );
+            subMod.FileData.SetTo( replacements );
+            subMod.ManipulationData.Clear();
+            subMod.ManipulationData.UnionWith( manipulations );
+            subMod.FileSwapData.SetTo( swaps );
+            ModOptionChanged.Invoke( ModOptionChangeType.OptionUpdated, mod, groupIdx, optionIdx, -1 );
+        }
+
+        public static bool VerifyFileName( Mod mod, IModGroup? group, string newName, bool message )
         {
             var path = newName.RemoveInvalidPathSymbols();
-            if( mod.Groups.Any( o => !ReferenceEquals( o, group )
+            if( path.Length == 0
+            || mod.Groups.Any( o => !ReferenceEquals( o, group )
                 && string.Equals( o.Name.RemoveInvalidPathSymbols(), path, StringComparison.InvariantCultureIgnoreCase ) ) )
             {
-                PluginLog.Warning( $"Could not name option {newName} because option with same filename {path} already exists." );
+                if( message )
+                {
+                    PluginLog.Warning( $"Could not name option {newName} because option with same filename {path} already exists." );
+                }
+
                 return false;
             }
 
             return true;
         }
 
-        private static SubMod GetSubMod( Mod2 mod, int groupIdx, int optionIdx )
+        private static SubMod GetSubMod( Mod mod, int groupIdx, int optionIdx )
         {
             return mod._groups[ groupIdx ] switch
             {
@@ -278,7 +387,7 @@ public sealed partial class Mod2
             return true;
         }
 
-        private static void OnModOptionChange( ModOptionChangeType type, Mod2 mod, int groupIdx, int _ )
+        private static void OnModOptionChange( ModOptionChangeType type, Mod mod, int groupIdx, int _, int _2 )
         {
             // File deletion is handled in the actual function.
             if( type != ModOptionChangeType.GroupDeleted )
@@ -289,10 +398,11 @@ public sealed partial class Mod2
             // State can not change on adding groups, as they have no immediate options.
             mod.HasOptions = type switch
             {
-                ModOptionChangeType.GroupDeleted  => mod.HasOptions =  mod.Groups.Any( o => o.IsOption ),
+                ModOptionChangeType.GroupDeleted     => mod.HasOptions =  mod.Groups.Any( o => o.IsOption ),
-                ModOptionChangeType.OptionAdded   => mod.HasOptions |= mod._groups[ groupIdx ].IsOption,
+                ModOptionChangeType.GroupTypeChanged => mod.HasOptions =  mod.Groups.Any( o => o.IsOption ),
-                ModOptionChangeType.OptionDeleted => mod.HasOptions =  mod.Groups.Any( o => o.IsOption ),
+                ModOptionChangeType.OptionAdded      => mod.HasOptions |= mod._groups[ groupIdx ].IsOption,
-                _                                 => mod.HasOptions,
+                ModOptionChangeType.OptionDeleted    => mod.HasOptions =  mod.Groups.Any( o => o.IsOption ),
+                _                                    => mod.HasOptions,
             };
         }
     }

Penumbra/Mods/Manager/Mod.Manager.Root.cs

@@ -4,7 +4,7 @@ using Dalamud.Logging;
 
 namespace Penumbra.Mods;
 
-public sealed partial class Mod2
+public sealed partial class Mod
 {
     public sealed partial class Manager
     {
@@ -50,7 +50,7 @@ public sealed partial class Mod2
                 }
 
                 BasePath = newDir;
-                Valid    = true;
+                Valid    = Directory.Exists( newDir.FullName );
                 if( Penumbra.Config.ModDirectory != BasePath.FullName )
                 {
                     Penumbra.Config.ModDirectory = BasePath.FullName;

Penumbra/Mods/Manager/Mod.Manager.cs

@@ -4,22 +4,22 @@ using System.Collections.Generic;
 
 namespace Penumbra.Mods;
 
-public sealed partial class Mod2
+public sealed partial class Mod
 {
-    public sealed partial class Manager : IEnumerable< Mod2 >
+    public sealed partial class Manager : IEnumerable< Mod >
     {
-        private readonly List< Mod2 > _mods = new();
+        private readonly List< Mod > _mods = new();
 
-        public Mod2 this[ Index idx ]
+        public Mod this[ Index idx ]
             => _mods[ idx ];
 
-        public IReadOnlyList< Mod2 > Mods
+        public IReadOnlyList< Mod > Mods
             => _mods;
 
         public int Count
             => _mods.Count;
 
-        public IEnumerator< Mod2 > GetEnumerator()
+        public IEnumerator< Mod > GetEnumerator()
             => _mods.GetEnumerator();
 
         IEnumerator IEnumerable.GetEnumerator()

Penumbra/Mods/Manager/Mod2.Manager.BasePath.cs

@@ -1,77 +0,0 @@
-using System;
-using System.IO;
-using Dalamud.Logging;
-
-namespace Penumbra.Mods;
-
-public partial class Mod2
-{
-    public partial class Manager
-    {
-        public delegate void ModPathChangeDelegate( ModPathChangeType type, Mod2 mod, DirectoryInfo? oldDirectory,
-            DirectoryInfo? newDirectory );
-
-        public event ModPathChangeDelegate? ModPathChanged;
-
-        public void MoveModDirectory( Index idx, DirectoryInfo newDirectory )
-        {
-            var mod = this[ idx ];
-            // TODO
-        }
-
-        public void DeleteMod( Index idx )
-        {
-            var mod = this[ idx ];
-            if( Directory.Exists( mod.BasePath.FullName ) )
-            {
-                try
-                {
-                    Directory.Delete( mod.BasePath.FullName, true );
-                }
-                catch( Exception e )
-                {
-                    PluginLog.Error( $"Could not delete the mod {mod.BasePath.Name}:\n{e}" );
-                }
-            }
-
-            // TODO
-            // mod.Order.ParentFolder.RemoveMod( mod );
-            // _mods.RemoveAt( idx );
-            //for( var i = idx; i < _mods.Count; ++i )
-            //{
-            //    --_mods[i].Index;
-            //}
-
-            ModPathChanged?.Invoke( ModPathChangeType.Deleted, mod, mod.BasePath, null );
-        }
-
-        public Mod2 AddMod( DirectoryInfo modFolder )
-        {
-            // TODO
-
-            //var mod = LoadMod( StructuredMods, modFolder );
-            //if( mod == null )
-            //{
-            //    return -1;
-            //}
-            //
-            //if( Config.ModSortOrder.TryGetValue( mod.BasePath.Name, out var sortOrder ) )
-            //{
-            //    if( SetSortOrderPath( mod, sortOrder ) )
-            //    {
-            //        Config.Save();
-            //    }
-            //}
-            //
-            //if( _mods.Any( m => m.BasePath.Name == modFolder.Name ) )
-            //{
-            //    return -1;
-            //}
-            //
-            //_mods.Add( mod );
-            //ModChange?.Invoke( ChangeType.Added, _mods.Count - 1, mod );
-            //
-            return this[^1];
-        }
-    }
-}

Penumbra/Mods/Manager/Mod2.Manager.FileSystem.cs

@@ -1,12 +0,0 @@
-using System.IO;
-
-namespace Penumbra.Mods;
-
-public sealed partial class Mod2
-{
-    public sealed partial class Manager
-    {
-        public static string ModFileSystemFile
-            => Path.Combine( Dalamud.PluginInterface.GetPluginConfigDirectory(), "sort_order.json" );
-    }
-}

Penumbra/Mods/Mod.BasePath.cs

@@ -10,15 +10,15 @@ public enum ModPathChangeType
     Moved,
 }
 
-public partial class Mod2
+public partial class Mod
 {
     public DirectoryInfo BasePath { get; private set; }
     public int Index { get; private set; } = -1;
 
-    private Mod2( DirectoryInfo basePath )
+    private Mod( DirectoryInfo basePath )
         => BasePath = basePath;
 
-    public static Mod2? LoadMod( DirectoryInfo basePath )
+    public static Mod? LoadMod( DirectoryInfo basePath )
     {
         basePath.Refresh();
         if( !basePath.Exists )
@@ -27,7 +27,7 @@ public partial class Mod2
             return null;
         }
 
-        var mod = new Mod2( basePath );
+        var mod = new Mod( basePath );
         mod.LoadMeta();
         if( mod.Name.Length == 0 )
         {

Penumbra/Mods/Mod.ChangedItems.cs

@@ -3,7 +3,7 @@ using System.Linq;
 
 namespace Penumbra.Mods;
 
-public sealed partial class Mod2
+public sealed partial class Mod
 {
     public SortedList< string, object? > ChangedItems { get; } = new();
     public string LowerChangedItemsString { get; private set; } = string.Empty;

Penumbra/Mods/Mod.Creation.cs

@@ -0,0 +1,154 @@
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using Dalamud.Utility;
+using OtterGui.Classes;
+using OtterGui.Filesystem;
+using Penumbra.GameData.ByteString;
+using Penumbra.Import;
+
+namespace Penumbra.Mods;
+
+public partial class Mod
+{
+    // Create and return a new directory based on the given directory and name, that is
+    //     - Not Empty
+    //     - Unique, by appending (digit) for duplicates.
+    //     - Containing no symbols invalid for FFXIV or windows paths.
+    internal static DirectoryInfo CreateModFolder( DirectoryInfo outDirectory, string modListName )
+    {
+        var name = Path.GetFileNameWithoutExtension( modListName );
+        if( name.Length == 0 )
+        {
+            name = "_";
+        }
+
+        var newModFolderBase = NewOptionDirectory( outDirectory, name );
+        var newModFolder     = newModFolderBase.FullName.ObtainUniqueFile();
+        if( newModFolder.Length == 0 )
+        {
+            throw new IOException( "Could not create mod folder: too many folders of the same name exist." );
+        }
+
+        Directory.CreateDirectory( newModFolder );
+        return new DirectoryInfo( newModFolder );
+    }
+
+    // Create the name for a group or option subfolder based on its parent folder and given name.
+    // subFolderName should never be empty, and the result is unique and contains no invalid symbols.
+    internal static DirectoryInfo? NewSubFolderName( DirectoryInfo parentFolder, string subFolderName )
+    {
+        var newModFolderBase = NewOptionDirectory( parentFolder, subFolderName );
+        var newModFolder     = newModFolderBase.FullName.ObtainUniqueFile();
+        return newModFolder.Length == 0 ? null : new DirectoryInfo( newModFolder );
+    }
+
+    // Create the file containing the meta information about a mod from scratch.
+    internal static void CreateMeta( DirectoryInfo directory, string? name, string? author, string? description, string? version,
+        string? website )
+    {
+        var mod = new Mod( directory );
+        mod.Name        = name.IsNullOrEmpty() ? mod.Name : new LowerString( name! );
+        mod.Author      = author != null ? new LowerString( author ) : mod.Author;
+        mod.Description = description ?? mod.Description;
+        mod.Version     = version     ?? mod.Version;
+        mod.Website     = website     ?? mod.Website;
+        mod.SaveMeta();
+    }
+
+    // Create a file for an option group from given data.
+    internal static void CreateOptionGroup( DirectoryInfo baseFolder, ModGroup groupData,
+        int priority, string desc, IEnumerable< ISubMod > subMods )
+    {
+        switch( groupData.SelectionType )
+        {
+            case SelectType.Multi:
+            {
+                var group = new MultiModGroup()
+                {
+                    Name        = groupData.GroupName!,
+                    Description = desc,
+                    Priority    = priority,
+                };
+                group.PrioritizedOptions.AddRange( subMods.OfType< SubMod >().Select( ( s, idx ) => ( s, idx ) ) );
+                IModGroup.SaveModGroup( group, baseFolder );
+                break;
+            }
+            case SelectType.Single:
+            {
+                var group = new SingleModGroup()
+                {
+                    Name        = groupData.GroupName!,
+                    Description = desc,
+                    Priority    = priority,
+                };
+                group.OptionData.AddRange( subMods.OfType< SubMod >() );
+                IModGroup.SaveModGroup( group, baseFolder );
+                break;
+            }
+        }
+    }
+
+    // Create the data for a given sub mod from its data and the folder it is based on.
+    internal static ISubMod CreateSubMod( DirectoryInfo baseFolder, DirectoryInfo optionFolder, OptionList option )
+    {
+        var list = optionFolder.EnumerateFiles( "*.*", SearchOption.AllDirectories )
+           .Select( f => ( Utf8GamePath.FromFile( f, optionFolder, out var gamePath, true ), gamePath, new FullPath( f ) ) )
+           .Where( t => t.Item1 );
+
+        var mod = new SubMod()
+        {
+            Name = option.Name!,
+        };
+        foreach( var (_, gamePath, file) in list )
+        {
+            mod.FileData.TryAdd( gamePath, file );
+        }
+
+        mod.IncorporateMetaChanges( baseFolder, true );
+        return mod;
+    }
+
+    // Create the default data file from all unused files that were not handled before
+    // and are used in sub mods.
+    internal static void CreateDefaultFiles( DirectoryInfo directory )
+    {
+        var mod = new Mod( directory );
+        foreach( var file in mod.FindUnusedFiles() )
+        {
+            if( Utf8GamePath.FromFile( new FileInfo( file.FullName ), directory, out var gamePath, true ) )
+            {
+                mod._default.FileData.TryAdd( gamePath, file );
+            }
+        }
+
+        mod._default.IncorporateMetaChanges( directory, true );
+        mod.SaveDefaultMod();
+    }
+
+    // Return the name of a new valid directory based on the base directory and the given name.
+    private static DirectoryInfo NewOptionDirectory( DirectoryInfo baseDir, string optionName )
+        => new(Path.Combine( baseDir.FullName, ReplaceBadXivSymbols( optionName ) ));
+
+
+    // XIV can not deal with non-ascii symbols in a path,
+    // and the path must obviously be valid itself.
+    private static string ReplaceBadXivSymbols( string s, string replacement = "_" )
+    {
+        StringBuilder sb = new(s.Length);
+        foreach( var c in s )
+        {
+            if( c.IsInvalidAscii() || c.IsInvalidInPath() )
+            {
+                sb.Append( replacement );
+            }
+            else
+            {
+                sb.Append( c );
+            }
+        }
+
+        return sb.ToString();
+    }
+}

Penumbra/Mods/Mod.Files.cs

@@ -9,7 +9,7 @@ using Penumbra.Meta.Manipulations;
 
 namespace Penumbra.Mods;
 
-public partial class Mod2
+public partial class Mod
 {
     public ISubMod Default
         => _default;

Penumbra/Mods/Mod.Meta.Migration.cs

@@ -6,19 +6,18 @@ using Dalamud.Logging;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using Penumbra.GameData.ByteString;
-using Penumbra.Importer;
 using Penumbra.Util;
 
 namespace Penumbra.Mods;
 
-public sealed partial class Mod2
+public sealed partial class Mod
 {
     private static class Migration
     {
-        public static bool Migrate( Mod2 mod, JObject json )
+        public static bool Migrate( Mod mod, JObject json )
             => MigrateV0ToV1( mod, json );
 
-        private static bool MigrateV0ToV1( Mod2 mod, JObject json )
+        private static bool MigrateV0ToV1( Mod mod, JObject json )
         {
             if( mod.FileVersion > 0 )
             {
@@ -27,14 +26,15 @@ public sealed partial class Mod2
 
             var swaps = json[ "FileSwaps" ]?.ToObject< Dictionary< Utf8GamePath, FullPath > >()
              ?? new Dictionary< Utf8GamePath, FullPath >();
-            var groups   = json[ "Groups" ]?.ToObject< Dictionary< string, OptionGroupV0 > >() ?? new Dictionary< string, OptionGroupV0 >();
+            var groups = json[ "Groups" ]?.ToObject< Dictionary< string, OptionGroupV0 > >() ?? new Dictionary< string, OptionGroupV0 >();
             var priority = 1;
+            var seenMetaFiles = new HashSet< FullPath >();
             foreach( var group in groups.Values )
             {
-                ConvertGroup( mod, group, ref priority );
+                ConvertGroup( mod, group, ref priority, seenMetaFiles );
             }
 
-            foreach( var unusedFile in mod.FindUnusedFiles() )
+            foreach( var unusedFile in mod.FindUnusedFiles().Where( f => !seenMetaFiles.Contains( f ) ) )
             {
                 if( unusedFile.ToGamePath( mod.BasePath, out var gamePath )
                 && !mod._default.FileData.TryAdd( gamePath, unusedFile ) )
@@ -61,7 +61,7 @@ public sealed partial class Mod2
             return true;
         }
 
-        private static void ConvertGroup( Mod2 mod, OptionGroupV0 group, ref int priority )
+        private static void ConvertGroup( Mod mod, OptionGroupV0 group, ref int priority, HashSet< FullPath > seenMetaFiles )
         {
             if( group.Options.Count == 0 )
             {
@@ -82,14 +82,14 @@ public sealed partial class Mod2
                     mod._groups.Add( newMultiGroup );
                     foreach( var option in group.Options )
                     {
-                        newMultiGroup.PrioritizedOptions.Add( ( SubModFromOption( mod.BasePath, option ), optionPriority++ ) );
+                        newMultiGroup.PrioritizedOptions.Add( ( SubModFromOption( mod.BasePath, option, seenMetaFiles ), optionPriority++ ) );
                     }
 
                     break;
                 case SelectType.Single:
                     if( group.Options.Count == 1 )
                     {
-                        AddFilesToSubMod( mod._default, mod.BasePath, group.Options[ 0 ] );
+                        AddFilesToSubMod( mod._default, mod.BasePath, group.Options[ 0 ], seenMetaFiles );
                         return;
                     }
 
@@ -102,28 +102,34 @@ public sealed partial class Mod2
                     mod._groups.Add( newSingleGroup );
                     foreach( var option in group.Options )
                     {
-                        newSingleGroup.OptionData.Add( SubModFromOption( mod.BasePath, option ) );
+                        newSingleGroup.OptionData.Add( SubModFromOption( mod.BasePath, option, seenMetaFiles ) );
                     }
 
                     break;
             }
         }
 
-        private static void AddFilesToSubMod( SubMod mod, DirectoryInfo basePath, OptionV0 option )
+        private static void AddFilesToSubMod( SubMod mod, DirectoryInfo basePath, OptionV0 option, HashSet< FullPath > seenMetaFiles )
         {
             foreach( var (relPath, gamePaths) in option.OptionFiles )
             {
+                var fullPath = new FullPath( basePath, relPath );
                 foreach( var gamePath in gamePaths )
                 {
-                    mod.FileData.TryAdd( gamePath, new FullPath( basePath, relPath ) );
+                    mod.FileData.TryAdd( gamePath, fullPath );
+                }
+
+                if( fullPath.Extension is ".meta" or ".rgsp" )
+                {
+                    seenMetaFiles.Add( fullPath );
                 }
             }
         }
 
-        private static SubMod SubModFromOption( DirectoryInfo basePath, OptionV0 option )
+        private static SubMod SubModFromOption( DirectoryInfo basePath, OptionV0 option, HashSet< FullPath > seenMetaFiles )
         {
-            var subMod = new SubMod() { Name = option.OptionName };
+            var subMod = new SubMod { Name = option.OptionName };
-            AddFilesToSubMod( subMod, basePath, option );
+            AddFilesToSubMod( subMod, basePath, option, seenMetaFiles );
             subMod.IncorporateMetaChanges( basePath, false );
             return subMod;
         }
@@ -152,5 +158,45 @@ public sealed partial class Mod2
             public OptionGroupV0()
             { }
         }
+
+        // Not used anymore, but required for migration.
+        private class SingleOrArrayConverter< T > : JsonConverter
+        {
+            public override bool CanConvert( Type objectType )
+                => objectType == typeof( HashSet< T > );
+
+            public override object ReadJson( JsonReader reader, Type objectType, object? existingValue, JsonSerializer serializer )
+            {
+                var token = JToken.Load( reader );
+
+                if( token.Type == JTokenType.Array )
+                {
+                    return token.ToObject< HashSet< T > >() ?? new HashSet< T >();
+                }
+
+                var tmp = token.ToObject< T >();
+                return tmp != null
+                    ? new HashSet< T > { tmp }
+                    : new HashSet< T >();
+            }
+
+            public override bool CanWrite
+                => true;
+
+            public override void WriteJson( JsonWriter writer, object? value, JsonSerializer serializer )
+            {
+                writer.WriteStartArray();
+                if( value != null )
+                {
+                    var v = ( HashSet< T > )value;
+                    foreach( var val in v )
+                    {
+                        serializer.Serialize( writer, val?.ToString() );
+                    }
+                }
+
+                writer.WriteEndArray();
+            }
+        }
     }
 }

Penumbra/Mods/Mod.Meta.cs

@@ -4,6 +4,7 @@ using Dalamud.Logging;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using OtterGui;
+using OtterGui.Classes;
 
 namespace Penumbra.Mods;
 
@@ -20,7 +21,7 @@ public enum MetaChangeType : byte
     Migration   = 0x40,
 }
 
-public sealed partial class Mod2
+public sealed partial class Mod
 {
     public const uint CurrentFileVersion = 1;
     public uint FileVersion { get; private set; } = CurrentFileVersion;

Penumbra/Mods/Mod2.Creation.cs

@@ -1,108 +0,0 @@
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using Penumbra.GameData.ByteString;
-using Penumbra.Importer.Models;
-
-namespace Penumbra.Mods;
-
-public partial class Mod2
-{
-    internal static void CreateMeta( DirectoryInfo directory, string? name, string? author, string? description, string? version,
-        string? website )
-    {
-        var mod = new Mod2( directory );
-        if( name is { Length: 0 } )
-        {
-            mod.Name = name;
-        }
-
-        if( author != null )
-        {
-            mod.Author = author;
-        }
-
-        if( description != null )
-        {
-            mod.Description = description;
-        }
-
-        if( version != null )
-        {
-            mod.Version = version;
-        }
-
-        if( website != null )
-        {
-            mod.Website = website;
-        }
-
-        mod.SaveMeta();
-    }
-
-    internal static void CreateOptionGroup( DirectoryInfo baseFolder, ModGroup groupData,
-        int priority, string desc, List< ISubMod > subMods )
-    {
-        switch( groupData.SelectionType )
-        {
-            case SelectType.Multi:
-            {
-                var group = new MultiModGroup()
-                {
-                    Name        = groupData.GroupName!,
-                    Description = desc,
-                    Priority    = priority,
-                };
-                group.PrioritizedOptions.AddRange( subMods.OfType< SubMod >().Select( ( s, idx ) => ( s, idx ) ) );
-                IModGroup.SaveModGroup( group, baseFolder );
-                break;
-            }
-            case SelectType.Single:
-            {
-                var group = new SingleModGroup()
-                {
-                    Name        = groupData.GroupName!,
-                    Description = desc,
-                    Priority    = priority,
-                };
-                group.OptionData.AddRange( subMods.OfType< SubMod >() );
-                IModGroup.SaveModGroup( group, baseFolder );
-                break;
-            }
-        }
-    }
-
-    internal static ISubMod CreateSubMod( DirectoryInfo baseFolder, DirectoryInfo optionFolder, OptionList option )
-    {
-        var list = optionFolder.EnumerateFiles( "*.*", SearchOption.AllDirectories )
-           .Select( f => ( Utf8GamePath.FromFile( f, optionFolder, out var gamePath, true ), gamePath, new FullPath( f ) ) )
-           .Where( t => t.Item1 );
-
-        var mod = new SubMod()
-        {
-            Name = option.Name!,
-        };
-        foreach( var (_, gamePath, file) in list )
-        {
-            mod.FileData.TryAdd( gamePath, file );
-        }
-
-        mod.IncorporateMetaChanges( baseFolder, true );
-        return mod;
-    }
-
-    internal static void CreateDefaultFiles( DirectoryInfo directory )
-    {
-        var mod = new Mod2( directory );
-        foreach( var file in mod.FindUnusedFiles() )
-        {
-            if( Utf8GamePath.FromFile( new FileInfo( file.FullName ), directory, out var gamePath, true ) )
-            {
-                mod._default.FileData.TryAdd( gamePath, file );
-            }
-        }
-
-        mod._default.IncorporateMetaChanges( directory, true );
-        mod.SaveDefaultMod();
-    }
-}

Penumbra/Mods/ModCleanup.cs

@@ -7,7 +7,7 @@ using System.Linq;
 using System.Security.Cryptography;
 using Dalamud.Logging;
 using Penumbra.GameData.ByteString;
-using Penumbra.Importer;
+using Penumbra.Import;
 using Penumbra.Util;
 
 namespace Penumbra.Mods;

Penumbra/Mods/ModFileSystem.cs

@@ -1,16 +1,21 @@
 using System;
 using System.IO;
+using System.Linq;
+using System.Text.RegularExpressions;
 using OtterGui.Filesystem;
 
 namespace Penumbra.Mods;
 
-public sealed class ModFileSystem : FileSystem< Mod2 >, IDisposable
+public sealed class ModFileSystem : FileSystem< Mod >, IDisposable
 {
+    public static string ModFileSystemFile
+        => Path.Combine( Dalamud.PluginInterface.GetPluginConfigDirectory(), "sort_order.json" );
+
     // Save the current sort order.
     // Does not save or copy the backup in the current mod directory,
     // as this is done on mod directory changes only.
     public void Save()
-        => SaveToFile( new FileInfo( Mod2.Manager.ModFileSystemFile ), SaveMod, true );
+        => SaveToFile( new FileInfo( ModFileSystemFile ), SaveMod, true );
 
     // Create a new ModFileSystem from the currently loaded mods and the current sort order file.
     public static ModFileSystem Load()
@@ -20,18 +25,24 @@ public sealed class ModFileSystem : FileSystem< Mod2 >, IDisposable
 
         ret.Changed                              += ret.OnChange;
         Penumbra.ModManager.ModDiscoveryFinished += ret.Reload;
+        Penumbra.ModManager.ModMetaChanged       += ret.OnMetaChange;
+        Penumbra.ModManager.ModPathChanged       += ret.OnModPathChange;
 
         return ret;
     }
 
     public void Dispose()
-        => Penumbra.ModManager.ModDiscoveryFinished -= Reload;
+    {
+        Penumbra.ModManager.ModPathChanged       -= OnModPathChange;
+        Penumbra.ModManager.ModDiscoveryFinished -= Reload;
+        Penumbra.ModManager.ModMetaChanged       -= OnMetaChange;
+    }
 
     // Reload the whole filesystem from currently loaded mods and the current sort order file.
     // Used on construction and on mod rediscoveries.
     private void Reload()
     {
-        if( Load( new FileInfo( Mod2.Manager.ModFileSystemFile ), Penumbra.ModManager.Mods, ModToIdentifier, ModToName ) )
+        if( Load( new FileInfo( ModFileSystemFile ), Penumbra.ModManager.Mods, ModToIdentifier, ModToName ) )
         {
             Save();
         }
@@ -46,17 +57,61 @@ public sealed class ModFileSystem : FileSystem< Mod2 >, IDisposable
         }
     }
 
+    // Update sort order when defaulted mod names change.
+    private void OnMetaChange( MetaChangeType type, Mod mod, string? oldName )
+    {
+        if( type.HasFlag( MetaChangeType.Name ) && oldName != null )
+        {
+            var old = oldName.FixName();
+            if( Find( old, out var child ) )
+            {
+                Rename( child, mod.Name.Text );
+            }
+        }
+    }
+
+    // Update the filesystem if a mod has been added or removed.
+    // Save it, if the mod directory has been moved, since this will change the save format.
+    private void OnModPathChange( ModPathChangeType type, Mod mod, DirectoryInfo? oldPath, DirectoryInfo? newPath )
+    {
+        switch( type )
+        {
+            case ModPathChangeType.Added:
+                var originalName = mod.Name.Text.FixName();
+                var name         = originalName;
+                var counter      = 1;
+                while( Find( name, out _ ) )
+                {
+                    name = $"{originalName} ({++counter})";
+                }
+
+                CreateLeaf( Root, name, mod );
+                break;
+            case ModPathChangeType.Deleted:
+                var leaf = Root.GetAllDescendants( SortMode.Lexicographical ).OfType< Leaf >().FirstOrDefault( l => l.Value == mod );
+                if( leaf != null )
+                {
+                    Delete( leaf );
+                }
+                break;
+            case ModPathChangeType.Moved:
+                Save();
+                break;
+        }
+    }
+
     // Used for saving and loading.
-    private static string ModToIdentifier( Mod2 mod )
+    private static string ModToIdentifier( Mod mod )
         => mod.BasePath.Name;
 
-    private static string ModToName( Mod2 mod )
+    private static string ModToName( Mod mod )
-        => mod.Name.Text;
+        => mod.Name.Text.FixName();
 
-    private static (string, bool) SaveMod( Mod2 mod, string fullPath )
+    private static (string, bool) SaveMod( Mod mod, string fullPath )
     {
+        var regex = new Regex( $@"^{Regex.Escape( ModToName( mod ) )}( \(\d+\))?" );
         // Only save pairs with non-default paths.
-        if( fullPath == ModToName( mod ) )
+        if( regex.IsMatch( fullPath ) )
         {
             return ( string.Empty, false );
         }

Penumbra/Mods/Subclasses/IModGroup.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.IO;
 using Dalamud.Logging;
 using Newtonsoft.Json;
+using OtterGui.Filesystem;
 using Penumbra.Util;
 
 namespace Penumbra.Mods;
@@ -76,4 +77,7 @@ public interface IModGroup : IEnumerable< ISubMod >
         j.WriteEndArray();
         j.WriteEndObject();
     }
+
+    public IModGroup Convert( SelectType type );
+    public bool      MoveOption( int optionIdxFrom, int optionIdxTo );
 }

Penumbra/Mods/Subclasses/Mod.Files.MultiModGroup.cs

@@ -5,10 +5,11 @@ using System.IO;
 using System.Linq;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
+using OtterGui.Filesystem;
 
 namespace Penumbra.Mods;
 
-public partial class Mod2
+public partial class Mod
 {
     private sealed class MultiModGroup : IModGroup
     {
@@ -63,5 +64,26 @@ public partial class Mod2
 
             return ret;
         }
+
+        public IModGroup Convert( SelectType type )
+        {
+            switch( type )
+            {
+                case SelectType.Multi: return this;
+                case SelectType.Single:
+                    var multi = new SingleModGroup()
+                    {
+                        Name        = Name,
+                        Description = Description,
+                        Priority    = Priority,
+                    };
+                    multi.OptionData.AddRange( PrioritizedOptions.Select( p => p.Mod ) );
+                    return multi;
+                default: throw new ArgumentOutOfRangeException( nameof( type ), type, null );
+            }
+        }
+
+        public bool MoveOption( int optionIdxFrom, int optionIdxTo )
+            => PrioritizedOptions.Move( optionIdxFrom, optionIdxTo );
     }
 }

Penumbra/Mods/Subclasses/Mod.Files.SingleModGroup.cs

@@ -2,12 +2,14 @@ using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
+using OtterGui.Filesystem;
 
 namespace Penumbra.Mods;
 
-public partial class Mod2
+public partial class Mod
 {
     private sealed class SingleModGroup : IModGroup
     {
@@ -62,5 +64,26 @@ public partial class Mod2
 
             return ret;
         }
+
+        public IModGroup Convert( SelectType type )
+        {
+            switch( type )
+            {
+                case SelectType.Single: return this;
+                case SelectType.Multi:
+                    var multi = new MultiModGroup()
+                    {
+                        Name        = Name,
+                        Description = Description,
+                        Priority    = Priority,
+                    };
+                    multi.PrioritizedOptions.AddRange( OptionData.Select( ( o, i ) => ( o, i ) ) );
+                    return multi;
+                default: throw new ArgumentOutOfRangeException( nameof( type ), type, null );
+            }
+        }
+
+        public bool MoveOption( int optionIdxFrom, int optionIdxTo )
+            => OptionData.Move( optionIdxFrom, optionIdxTo );
     }
 }

Penumbra/Mods/Subclasses/Mod.Files.SubMod.cs

@@ -6,12 +6,12 @@ using Dalamud.Logging;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using Penumbra.GameData.ByteString;
-using Penumbra.Importer;
+using Penumbra.Import;
 using Penumbra.Meta.Manipulations;
 
 namespace Penumbra.Mods;
 
-public partial class Mod2
+public partial class Mod
 {
     private string DefaultFile
         => Path.Combine( BasePath.FullName, "default_mod.json" );
@@ -135,31 +135,7 @@ public partial class Mod2
                             {
                                 File.Delete( file.FullName );
                             }
-
+                            ManipulationData.UnionWith( meta.MetaManipulations );
-                            foreach( var manip in meta.EqpManipulations )
-                            {
-                                ManipulationData.Add( manip );
-                            }
-
-                            foreach( var manip in meta.EqdpManipulations )
-                            {
-                                ManipulationData.Add( manip );
-                            }
-
-                            foreach( var manip in meta.EstManipulations )
-                            {
-                                ManipulationData.Add( manip );
-                            }
-
-                            foreach( var manip in meta.GmpManipulations )
-                            {
-                                ManipulationData.Add( manip );
-                            }
-
-                            foreach( var manip in meta.ImcManipulations )
-                            {
-                                ManipulationData.Add( manip );
-                            }
 
                             break;
                         case ".rgsp":
@@ -174,11 +150,7 @@ public partial class Mod2
                             {
                                 File.Delete( file.FullName );
                             }
-
+                            ManipulationData.UnionWith( rgsp.MetaManipulations );
-                            foreach( var manip in rgsp.RspManipulations )
-                            {
-                                ManipulationData.Add( manip );
-                            }
 
                             break;
                         default: continue;

Penumbra/Mods/Subclasses/ModSettings.cs

@@ -1,19 +1,20 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Numerics;
+using OtterGui.Filesystem;
 
 namespace Penumbra.Mods;
 
-
 // Contains the settings for a given mod.
-public class ModSettings2
+public class ModSettings
 {
-    public static readonly ModSettings2 Empty = new();
+    public static readonly ModSettings Empty = new();
     public List< uint > Settings { get; init; } = new();
     public int Priority { get; set; }
     public bool Enabled { get; set; }
 
-    public ModSettings2 DeepCopy()
+    public ModSettings DeepCopy()
         => new()
         {
             Enabled  = Enabled,
@@ -21,7 +22,7 @@ public class ModSettings2
             Settings = Settings.ToList(),
         };
 
-    public static ModSettings2 DefaultSettings( Mod2 mod )
+    public static ModSettings DefaultSettings( Mod mod )
         => new()
         {
             Enabled  = false,
@@ -29,19 +30,31 @@ public class ModSettings2
             Settings = Enumerable.Repeat( 0u, mod.Groups.Count ).ToList(),
         };
 
-
+    public bool HandleChanges( ModOptionChangeType type, Mod mod, int groupIdx, int optionIdx, int movedToIdx )
-
-    public void HandleChanges( ModOptionChangeType type, Mod2 mod, int groupIdx, int optionIdx )
     {
         switch( type )
         {
+            case ModOptionChangeType.GroupRenamed: return true;
             case ModOptionChangeType.GroupAdded:
                 Settings.Insert( groupIdx, 0 );
-                break;
+                return true;
             case ModOptionChangeType.GroupDeleted:
                 Settings.RemoveAt( groupIdx );
-                break;
+                return true;
+            case ModOptionChangeType.GroupTypeChanged:
+            {
+                var group  = mod.Groups[ groupIdx ];
+                var config = Settings[ groupIdx ];
+                Settings[ groupIdx ] = group.Type switch
+                {
+                    SelectType.Single => ( uint )Math.Min( group.Count - 1, BitOperations.TrailingZeroCount( config ) ),
+                    SelectType.Multi  => 1u << ( int )config,
+                    _                 => config,
+                };
+                return config != Settings[ groupIdx ];
+            }
             case ModOptionChangeType.OptionDeleted:
+            {
                 var group  = mod.Groups[ groupIdx ];
                 var config = Settings[ groupIdx ];
                 Settings[ groupIdx ] = group.Type switch
@@ -50,20 +63,38 @@ public class ModSettings2
                     SelectType.Multi  => RemoveBit( config, optionIdx ),
                     _                 => config,
                 };
-                break;
+                return config != Settings[ groupIdx ];
+            }
+            case ModOptionChangeType.GroupMoved: return Settings.Move( groupIdx, movedToIdx );
+            case ModOptionChangeType.OptionMoved:
+            {
+                var group  = mod.Groups[ groupIdx ];
+                var config = Settings[ groupIdx ];
+                Settings[ groupIdx ] = group.Type switch
+                {
+                    SelectType.Single => config == optionIdx ? ( uint )movedToIdx : config,
+                    SelectType.Multi  => MoveBit( config, optionIdx, movedToIdx ),
+                    _                 => config,
+                };
+                return config != Settings[ groupIdx ];
+            }
+            default: return false;
         }
     }
 
-    public void SetValue( Mod2 mod, int groupIdx, uint newValue )
+    private static uint FixSetting( IModGroup group, uint value )
+        => group.Type switch
+        {
+            SelectType.Single => ( uint )Math.Min( value, group.Count     - 1 ),
+            SelectType.Multi  => ( uint )( value & ( ( 1 << group.Count ) - 1 ) ),
+            _                 => value,
+        };
+
+    public void SetValue( Mod mod, int groupIdx, uint newValue )
     {
         AddMissingSettings( groupIdx + 1 );
         var group = mod.Groups[ groupIdx ];
-        Settings[ groupIdx ] = group.Type switch
+        Settings[ groupIdx ] = FixSetting( group, newValue );
-        {
-            SelectType.Single => ( uint )Math.Max( newValue, group.Count ),
-            SelectType.Multi  => ( ( 1u << group.Count ) - 1 ) & newValue,
-            _                 => newValue,
-        };
     }
 
     private static uint RemoveBit( uint config, int bit )
@@ -75,6 +106,16 @@ public class ModSettings2
         return low | high;
     }
 
+    private static uint MoveBit( uint config, int bit1, int bit2 )
+    {
+        var enabled = ( config & ( 1 << bit1 ) ) != 0 ? 1u << bit2 : 0u;
+        config = RemoveBit( config, bit1 );
+        var lowMask = ( 1u << bit2 ) - 1u;
+        var low     = config & lowMask;
+        var high    = ( config & ~lowMask ) << 1;
+        return low | enabled | high;
+    }
+
     internal bool AddMissingSettings( int totalCount )
     {
         if( totalCount <= Settings.Count )
@@ -100,7 +141,7 @@ public class ModSettings2
                 Settings = Settings.ToDictionary( kvp => kvp.Key, kvp => kvp.Value ),
             };
 
-        public SavedSettings( ModSettings2 settings, Mod2 mod )
+        public SavedSettings( ModSettings settings, Mod mod )
         {
             Priority = settings.Priority;
             Enabled  = settings.Enabled;
@@ -113,7 +154,7 @@ public class ModSettings2
             }
         }
 
-        public bool ToSettings( Mod2 mod, out ModSettings2 settings )
+        public bool ToSettings( Mod mod, out ModSettings settings )
         {
             var list    = new List< uint >( mod.Groups.Count );
             var changes = Settings.Count != mod.Groups.Count;
@@ -121,7 +162,12 @@ public class ModSettings2
             {
                 if( Settings.TryGetValue( group.Name, out var config ) )
                 {
-                    list.Add( config );
+                    var actualConfig = FixSetting( group, config );
+                    list.Add( actualConfig );
+                    if( actualConfig != config )
+                    {
+                        changes = true;
+                    }
                 }
                 else
                 {
@@ -130,7 +176,7 @@ public class ModSettings2
                 }
             }
 
-            settings = new ModSettings2
+            settings = new ModSettings
             {
                 Enabled  = Enabled,
                 Priority = Priority,

Penumbra/Penumbra.cs

@@ -40,7 +40,7 @@ public class Penumbra : IDalamudPlugin
     public static ResidentResourceManager ResidentResources { get; private set; } = null!;
     public static CharacterUtility CharacterUtility { get; private set; } = null!;
     public static MetaFileManager MetaFileManager { get; private set; } = null!;
-    public static Mod2.Manager ModManager { get; private set; } = null!;
+    public static Mod.Manager ModManager { get; private set; } = null!;
     public static ModCollection.Manager CollectionManager { get; private set; } = null!;
     public static SimpleRedirectManager Redirects { get; private set; } = null!;
     public static ResourceLoader ResourceLoader { get; private set; } = null!;
@@ -78,7 +78,7 @@ public class Penumbra : IDalamudPlugin
         MetaFileManager   = new MetaFileManager();
         ResourceLoader    = new ResourceLoader( this );
         ResourceLogger    = new ResourceLogger( ResourceLoader );
-        ModManager        = new Mod2.Manager( Config.ModDirectory );
+        ModManager        = new Mod.Manager( Config.ModDirectory );
         ModManager.DiscoverMods();
         CollectionManager = new ModCollection.Manager( ModManager );
         ModFileSystem     = ModFileSystem.Load();
@@ -138,6 +138,7 @@ public class Penumbra : IDalamudPlugin
         btn    = new LaunchButton( _configWindow );
         system = new WindowSystem( Name );
         system.AddWindow( _configWindow );
+        system.AddWindow( cfg.SubModPopup );
         Dalamud.PluginInterface.UiBuilder.Draw         += system.Draw;
         Dalamud.PluginInterface.UiBuilder.OpenConfigUi += cfg.Toggle;
     }
@@ -294,8 +295,7 @@ public class Penumbra : IDalamudPlugin
                 case "reload":
                 {
                     ModManager.DiscoverMods();
-                    Dalamud.Chat.Print(
+                    Dalamud.Chat.Print( $"Reloaded Penumbra mods. You have {ModManager.Mods.Count} mods."
-                        $"Reloaded Penumbra mods. You have {ModManager.Mods.Count} mods."
                     );
                     break;
                 }
@@ -314,7 +314,8 @@ public class Penumbra : IDalamudPlugin
                 }
                 case "debug":
                 {
-                    // TODO
+                    Config.DebugMode = true;
+                    Config.Save();
                     break;
                 }
                 case "enable":
@@ -370,7 +371,7 @@ public class Penumbra : IDalamudPlugin
     {
         var list = new DirectoryInfo( ModCollection.CollectionDirectory ).EnumerateFiles( "*.json" ).ToList();
         list.Add( Dalamud.PluginInterface.ConfigFile );
-        list.Add( new FileInfo( Mod2.Manager.ModFileSystemFile ) );
+        list.Add( new FileInfo( ModFileSystem.ModFileSystemFile ) );
         list.Add( new FileInfo( ModCollection.Manager.ActiveCollectionFile ) );
         return list;
     }

Penumbra/UI/Classes/ModFileSystemSelector.Filters.cs

@@ -5,6 +5,7 @@ using System.Numerics;
 using System.Runtime.InteropServices;
 using ImGuiNET;
 using OtterGui;
+using OtterGui.Classes;
 using OtterGui.Filesystem;
 using OtterGui.Raii;
 using Penumbra.Collections;
@@ -21,7 +22,7 @@ public partial class ModFileSystemSelector
     }
 
     private const    StringComparison     IgnoreCase   = StringComparison.InvariantCultureIgnoreCase;
-    private readonly IReadOnlySet< Mod2 > _newMods     = new HashSet< Mod2 >();
+    private readonly IReadOnlySet< Mod > _newMods     = new HashSet< Mod >();
     private          LowerString          _modFilter   = LowerString.Empty;
     private          int                  _filterType  = -1;
     private          ModFilter            _stateFilter = ModFilterExtensions.UnfilteredStateMods;
@@ -75,7 +76,7 @@ public partial class ModFileSystemSelector
     // Folders have default state and are filtered out on the direct string instead of the other options.
     // If any filter is set, they should be hidden by default unless their children are visible,
     // or they contain the path search string.
-    protected override bool ApplyFiltersAndState( FileSystem< Mod2 >.IPath path, out ModState state )
+    protected override bool ApplyFiltersAndState( FileSystem< Mod >.IPath path, out ModState state )
     {
         if( path is ModFileSystem.Folder f )
         {
@@ -88,7 +89,7 @@ public partial class ModFileSystemSelector
     }
 
     // Apply the string filters.
-    private bool ApplyStringFilters( ModFileSystem.Leaf leaf, Mod2 mod )
+    private bool ApplyStringFilters( ModFileSystem.Leaf leaf, Mod mod )
     {
         return _filterType switch
         {
@@ -102,7 +103,7 @@ public partial class ModFileSystemSelector
     }
 
     // Only get the text color for a mod if no filters are set.
-    private uint GetTextColor( Mod2 mod, ModSettings2? settings, ModCollection collection )
+    private uint GetTextColor( Mod mod, ModSettings? settings, ModCollection collection )
     {
         if( _newMods.Contains( mod ) )
         {
@@ -119,7 +120,7 @@ public partial class ModFileSystemSelector
             return collection != Penumbra.CollectionManager.Current ? ColorId.InheritedDisabledMod.Value() : ColorId.DisabledMod.Value();
         }
 
-        var conflicts = Penumbra.CollectionManager.Current.ModConflicts( mod.Index ).ToList();
+        var conflicts = Penumbra.CollectionManager.Current.ModConflicts( mod.Index );
         if( conflicts.Count == 0 )
         {
             return collection != Penumbra.CollectionManager.Current ? ColorId.InheritedMod.Value() : ColorId.EnabledMod.Value();
@@ -130,7 +131,7 @@ public partial class ModFileSystemSelector
             : ColorId.HandledConflictMod.Value();
     }
 
-    private bool CheckStateFilters( Mod2 mod, ModSettings2? settings, ModCollection collection, ref ModState state )
+    private bool CheckStateFilters( Mod mod, ModSettings? settings, ModCollection collection, ref ModState state )
     {
         var isNew = _newMods.Contains( mod );
         // Handle mod details.
@@ -188,7 +189,7 @@ public partial class ModFileSystemSelector
             }
 
             // Conflicts can only be relevant if the mod is enabled.
-            var conflicts = Penumbra.CollectionManager.Current.ModConflicts( mod.Index ).ToList();
+            var conflicts = Penumbra.CollectionManager.Current.ModConflicts( mod.Index );
             if( conflicts.Count > 0 )
             {
                 if( conflicts.Any( c => !c.Solved ) )

Penumbra/UI/Classes/ModFileSystemSelector.cs

@@ -1,23 +1,30 @@
+using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Numerics;
 using Dalamud.Interface;
+using Dalamud.Interface.ImGuiFileDialog;
+using Dalamud.Logging;
 using ImGuiNET;
 using OtterGui;
 using OtterGui.Filesystem;
 using OtterGui.FileSystem.Selector;
 using OtterGui.Raii;
 using Penumbra.Collections;
+using Penumbra.Import;
 using Penumbra.Mods;
 
 namespace Penumbra.UI.Classes;
 
-public sealed partial class ModFileSystemSelector : FileSystemSelector< Mod2, ModFileSystemSelector.ModState >
+public sealed partial class ModFileSystemSelector : FileSystemSelector< Mod, ModFileSystemSelector.ModState >
 {
-    public ModSettings2 SelectedSettings { get; private set; } = ModSettings2.Empty;
+    private readonly FileDialogManager _fileManager = new();
+    private          TexToolsImporter? _import;
+    public ModSettings SelectedSettings { get; private set; } = ModSettings.Empty;
     public ModCollection SelectedSettingCollection { get; private set; } = ModCollection.Empty;
 
-    public ModFileSystemSelector( ModFileSystem fileSystem, IReadOnlySet< Mod2 > newMods )
+    public ModFileSystemSelector( ModFileSystem fileSystem, IReadOnlySet< Mod > newMods )
         : base( fileSystem )
     {
         _newMods = newMods;
@@ -26,6 +33,7 @@ public sealed partial class ModFileSystemSelector : FileSystemSelector< Mod2, Mo
         SubscribeRightClickFolder( InheritDescendants, 15 );
         SubscribeRightClickFolder( OwnDescendants, 15 );
         AddButton( AddNewModButton, 0 );
+        AddButton( AddImportModButton, 1 );
         AddButton( DeleteModButton, 1000 );
         SetFilterTooltip();
 
@@ -33,6 +41,7 @@ public sealed partial class ModFileSystemSelector : FileSystemSelector< Mod2, Mo
         Penumbra.CollectionManager.CollectionChanged          += OnCollectionChange;
         Penumbra.CollectionManager.Current.ModSettingChanged  += OnSettingChange;
         Penumbra.CollectionManager.Current.InheritanceChanged += OnInheritanceChange;
+        Penumbra.ModManager.ModMetaChanged                    += OnModMetaChange;
         Penumbra.ModManager.ModDiscoveryStarted               += StoreCurrentSelection;
         Penumbra.ModManager.ModDiscoveryFinished              += RestoreLastSelection;
         OnCollectionChange( ModCollection.Type.Current, null, Penumbra.CollectionManager.Current, null );
@@ -43,6 +52,7 @@ public sealed partial class ModFileSystemSelector : FileSystemSelector< Mod2, Mo
         base.Dispose();
         Penumbra.ModManager.ModDiscoveryStarted               -= StoreCurrentSelection;
         Penumbra.ModManager.ModDiscoveryFinished              -= RestoreLastSelection;
+        Penumbra.ModManager.ModMetaChanged                    -= OnModMetaChange;
         Penumbra.CollectionManager.Current.ModSettingChanged  -= OnSettingChange;
         Penumbra.CollectionManager.Current.InheritanceChanged -= OnInheritanceChange;
         Penumbra.CollectionManager.CollectionChanged          -= OnCollectionChange;
@@ -64,10 +74,11 @@ public sealed partial class ModFileSystemSelector : FileSystemSelector< Mod2, Mo
     protected override uint FolderLineColor
         => ColorId.FolderLine.Value();
 
-    protected override void DrawLeafName( FileSystem< Mod2 >.Leaf leaf, in ModState state, bool selected )
+    protected override void DrawLeafName( FileSystem< Mod >.Leaf leaf, in ModState state, bool selected )
     {
         var       flags = selected ? ImGuiTreeNodeFlags.Selected | LeafFlags : LeafFlags;
         using var c     = ImRaii.PushColor( ImGuiCol.Text, state.Color );
+        using var id    = ImRaii.PushId( leaf.Value.Index );
         using var _     = ImRaii.TreeNode( leaf.Value.Name, flags );
     }
 
@@ -107,17 +118,90 @@ public sealed partial class ModFileSystemSelector : FileSystemSelector< Mod2, Mo
 
 
     // Add custom buttons.
-    private static void AddNewModButton( Vector2 size )
+    private string _newModName = string.Empty;
+
+    private void AddNewModButton( Vector2 size )
     {
-        if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.Plus.ToIconString(), size, "Create a new, empty mod of a given name.", false, true ) )
+        if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.Plus.ToIconString(), size, "Create a new, empty mod of a given name.", !Penumbra.ModManager.Valid, true ) )
-        { }
+        {
+            ImGui.OpenPopup( "Create New Mod" );
+        }
+
+        if( ImGuiUtil.OpenNameField( "Create New Mod", ref _newModName ) )
+        {
+            try
+            {
+                var newDir = Mod.CreateModFolder( Penumbra.ModManager.BasePath, _newModName );
+                Mod.CreateMeta( newDir, _newModName, string.Empty, string.Empty, "1.0", string.Empty );
+                Penumbra.ModManager.AddMod( newDir );
+                _newModName = string.Empty;
+            }
+            catch( Exception e )
+            {
+                PluginLog.Error( $"Could not create directory for new Mod {_newModName}:\n{e}" );
+            }
+        }
+    }
+
+    // Add an import mods button that opens a file selector.
+    private void AddImportModButton( Vector2 size )
+    {
+        if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.FileImport.ToIconString(), size,
+               "Import one or multiple mods from Tex Tools Mod Pack Files.", !Penumbra.ModManager.Valid, true ) )
+        {
+            _fileManager.OpenFileDialog( "Import Mod Pack", "TexTools Mod Packs{.ttmp,.ttmp2}", ( s, f ) =>
+            {
+                if( s )
+                {
+                    _import = new TexToolsImporter( Penumbra.ModManager.BasePath, f.Count, f.Select( file => new FileInfo( file ) ) );
+                    ImGui.OpenPopup( "Import Status" );
+                }
+            }, 0, Penumbra.Config.ModDirectory );
+        }
+
+        _fileManager.Draw();
+        DrawInfoPopup();
+    }
+
+    // Draw the progress information for import.
+    private void DrawInfoPopup()
+    {
+        var display = ImGui.GetIO().DisplaySize;
+        ImGui.SetNextWindowSize( display / 4 );
+        ImGui.SetNextWindowPos( 3 * display / 8 );
+        using var popup = ImRaii.Popup( "Import Status", ImGuiWindowFlags.Modal );
+        if( _import != null && popup.Success )
+        {
+            _import.DrawProgressInfo( ImGuiHelpers.ScaledVector2( -1, ImGui.GetFrameHeight() ) );
+            if( _import.State == ImporterState.Done )
+            {
+                ImGui.SetCursorPosY( ImGui.GetWindowHeight() - ImGui.GetFrameHeight() * 2 );
+                if( ImGui.Button( "Close", -Vector2.UnitX ) )
+                {
+                    _import = null;
+                    ImGui.CloseCurrentPopup();
+                }
+            }
+        }
     }
 
     private void DeleteModButton( Vector2 size )
     {
-        if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.Trash.ToIconString(), size,
+        var keys = ImGui.GetIO().KeyCtrl && ImGui.GetIO().KeyShift;
-               "Delete the currently selected mod entirely from your drive.", SelectedLeaf == null, true ) )
+        var tt = SelectedLeaf == null
-        { }
+            ? "No mod selected."
+            : "Delete the currently selected mod entirely from your drive.\n"
+          + "This can not be undone.";
+        if( !keys )
+        {
+            tt += "\nHold Control and Shift while clicking to delete the mod.";
+        }
+
+        if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.Trash.ToIconString(), size, tt, SelectedLeaf == null || !keys, true )
+        && Selected != null )
+        {
+            Penumbra.ModManager.DeleteMod( Selected.Index );
+        }
     }
 
 
@@ -146,6 +230,17 @@ public sealed partial class ModFileSystemSelector : FileSystemSelector< Mod2, Mo
         }
     }
 
+    private void OnModMetaChange( MetaChangeType type, Mod mod, string? oldName )
+    {
+        switch( type )
+        {
+            case MetaChangeType.Name:
+            case MetaChangeType.Author:
+                SetFilterDirty();
+                break;
+        }
+    }
+
     private void OnInheritanceChange( bool _ )
     {
         SetFilterDirty();
@@ -175,17 +270,17 @@ public sealed partial class ModFileSystemSelector : FileSystemSelector< Mod2, Mo
         OnSelectionChange( Selected, Selected, default );
     }
 
-    private void OnSelectionChange( Mod2? _1, Mod2? newSelection, in ModState _2 )
+    private void OnSelectionChange( Mod? _1, Mod? newSelection, in ModState _2 )
     {
         if( newSelection == null )
         {
-            SelectedSettings          = ModSettings2.Empty;
+            SelectedSettings          = ModSettings.Empty;
             SelectedSettingCollection = ModCollection.Empty;
         }
         else
         {
             ( var settings, SelectedSettingCollection ) = Penumbra.CollectionManager.Current[ newSelection.Index ];
-            SelectedSettings                            = settings ?? ModSettings2.Empty;
+            SelectedSettings                            = settings ?? ModSettings.Empty;
         }
     }
 

Penumbra/UI/Classes/SubModEditWindow.cs

@@ -0,0 +1,225 @@
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using Dalamud.Interface.Windowing;
+using ImGuiNET;
+using OtterGui.Raii;
+using Penumbra.GameData.ByteString;
+using Penumbra.Meta.Manipulations;
+using Penumbra.Mods;
+using Penumbra.Util;
+
+namespace Penumbra.UI.Classes;
+
+public class SubModEditWindow : Window
+{
+    private const    string               WindowBaseLabel = "###SubModEdit";
+    private          Mod?                 _mod;
+    private          int                  _groupIdx  = -1;
+    private          int                  _optionIdx = -1;
+    private          IModGroup?           _group;
+    private          ISubMod?             _subMod;
+    private readonly List< FilePathInfo > _availableFiles = new();
+
+    private readonly struct FilePathInfo
+    {
+        public readonly FullPath                         File;
+        public readonly Utf8RelPath                      RelFile;
+        public readonly long                             Size;
+        public readonly List< (int, int, Utf8GamePath) > SubMods;
+
+        public FilePathInfo( FileInfo file, Mod mod )
+        {
+            File    = new FullPath( file );
+            RelFile = Utf8RelPath.FromFile( File, mod.BasePath, out var f ) ? f : Utf8RelPath.Empty;
+            Size    = file.Length;
+            SubMods = new List< (int, int, Utf8GamePath) >();
+            var path = File;
+            foreach( var (group, groupIdx) in mod.Groups.WithIndex() )
+            {
+                foreach( var (subMod, optionIdx) in group.WithIndex() )
+                {
+                    SubMods.AddRange( subMod.Files.Where( kvp => kvp.Value.Equals( path ) ).Select( kvp => ( groupIdx, optionIdx, kvp.Key ) ) );
+                }
+            }
+            SubMods.AddRange( mod.Default.Files.Where( kvp => kvp.Value.Equals( path ) ).Select( kvp => (-1, 0, kvp.Key) )  );
+        }
+    }
+
+    private readonly HashSet< MetaManipulation >          _manipulations = new();
+    private readonly Dictionary< Utf8GamePath, FullPath > _files         = new();
+    private readonly Dictionary< Utf8GamePath, FullPath > _fileSwaps     = new();
+
+    public void Activate( Mod mod, int groupIdx, int optionIdx )
+    {
+        IsOpen     = true;
+        _mod       = mod;
+        _groupIdx  = groupIdx;
+        _group     = groupIdx >= 0 ? mod.Groups[ groupIdx ] : null;
+        _optionIdx = optionIdx;
+        _subMod    = groupIdx >= 0 ? _group![ optionIdx ] : _mod.Default;
+        _availableFiles.Clear();
+        _availableFiles.AddRange( mod.BasePath.EnumerateDirectories()
+           .SelectMany( d => d.EnumerateFiles( "*.*", SearchOption.AllDirectories ) )
+           .Select( f => new FilePathInfo( f, _mod ) ) );
+
+        _manipulations.Clear();
+        _manipulations.UnionWith( _subMod.Manipulations );
+        _files.SetTo( _subMod.Files );
+        _fileSwaps.SetTo( _subMod.FileSwaps );
+
+        WindowName = $"{_mod.Name}: {(_group != null ? $"{_group.Name} - " : string.Empty)}{_subMod.Name}";
+    }
+
+    public override bool DrawConditions()
+        => _subMod != null;
+
+    public override void Draw()
+    {
+        using var tabBar = ImRaii.TabBar( "##tabs" );
+        if( !tabBar )
+        {
+            return;
+        }
+
+        DrawFileTab();
+        DrawMetaTab();
+        DrawSwapTab();
+    }
+
+    private void Save()
+    {
+        if( _mod != null )
+        {
+            Penumbra.ModManager.OptionUpdate( _mod, _groupIdx, _optionIdx, _files, _manipulations, _fileSwaps );
+        }
+    }
+
+    public override void OnClose()
+    {
+        _subMod = null;
+    }
+
+    private void DrawFileTab()
+    {
+        using var tab = ImRaii.TabItem( "File Redirections" );
+        if( !tab )
+        {
+            return;
+        }
+
+        using var list = ImRaii.Table( "##files", 3 );
+        if( !list )
+        {
+            return;
+        }
+
+        foreach( var file in _availableFiles )
+        {
+            ImGui.TableNextColumn();
+            ConfigWindow.Text( file.RelFile.Path );
+            ImGui.TableNextColumn();
+            ImGui.Text( file.Size.ToString() );
+            ImGui.TableNextColumn();
+            if( file.SubMods.Count == 0 )
+            {
+                ImGui.Text( "Unused" );
+            }
+
+            foreach( var (groupIdx, optionIdx, gamePath) in file.SubMods )
+            {
+                ImGui.TableNextColumn();
+                ImGui.TableNextColumn();
+                var group  = groupIdx >= 0 ? _mod!.Groups[ groupIdx ] : null;
+                var option = groupIdx >= 0 ? group![ optionIdx ] : _mod!.Default;
+                var text = groupIdx >= 0
+                    ? $"{group!.Name} - {option.Name}"
+                    : option.Name;
+                ImGui.Text( text );
+                ImGui.TableNextColumn();
+                ConfigWindow.Text( gamePath.Path );
+            }
+        }
+
+        ImGui.TableNextRow();
+        foreach( var (gamePath, fullPath) in _files )
+        {
+            ImGui.TableNextColumn();
+            ConfigWindow.Text( gamePath.Path );
+            ImGui.TableNextColumn();
+            ImGui.Text( fullPath.FullName );
+            ImGui.TableNextColumn();
+        }
+    }
+
+    private void DrawMetaTab()
+    {
+        using var tab = ImRaii.TabItem( "Meta Manipulations" );
+        if( !tab )
+        {
+            return;
+        }
+
+        using var list = ImRaii.Table( "##meta", 3 );
+        if( !list )
+        {
+            return;
+        }
+
+        foreach( var manip in _manipulations )
+        {
+            ImGui.TableNextColumn();
+            ImGui.Text( manip.ManipulationType.ToString() );
+            ImGui.TableNextColumn();
+            ImGui.Text( manip.ManipulationType switch
+            {
+                MetaManipulation.Type.Imc  => manip.Imc.ToString(),
+                MetaManipulation.Type.Eqdp => manip.Eqdp.ToString(),
+                MetaManipulation.Type.Eqp  => manip.Eqp.ToString(),
+                MetaManipulation.Type.Est  => manip.Est.ToString(),
+                MetaManipulation.Type.Gmp  => manip.Gmp.ToString(),
+                MetaManipulation.Type.Rsp  => manip.Rsp.ToString(),
+                _                          => string.Empty,
+            } );
+            ImGui.TableNextColumn();
+            ImGui.Text( manip.ManipulationType switch
+            {
+                MetaManipulation.Type.Imc  => manip.Imc.Entry.ToString(),
+                MetaManipulation.Type.Eqdp => manip.Eqdp.Entry.ToString(),
+                MetaManipulation.Type.Eqp  => manip.Eqp.Entry.ToString(),
+                MetaManipulation.Type.Est  => manip.Est.Entry.ToString(),
+                MetaManipulation.Type.Gmp  => manip.Gmp.Entry.ToString(),
+                MetaManipulation.Type.Rsp  => manip.Rsp.Entry.ToString(),
+                _                          => string.Empty,
+            } );
+        }
+    }
+
+    private void DrawSwapTab()
+    {
+        using var tab = ImRaii.TabItem( "File Swaps" );
+        if( !tab )
+        {
+            return;
+        }
+
+        using var list = ImRaii.Table( "##swaps", 3 );
+        if( !list )
+        {
+            return;
+        }
+
+        foreach( var (from, to) in _fileSwaps )
+        {
+            ImGui.TableNextColumn();
+            ConfigWindow.Text( from.Path );
+            ImGui.TableNextColumn();
+            ImGui.Text( to.FullName );
+            ImGui.TableNextColumn();
+        }
+    }
+
+    public SubModEditWindow()
+        : base( WindowBaseLabel )
+    { }
+}

Penumbra/UI/ConfigWindow.ChangedItemsTab.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Numerics;
 using ImGuiNET;
 using OtterGui;
+using OtterGui.Classes;
 using OtterGui.Raii;
 
 namespace Penumbra.UI;

Penumbra/UI/ConfigWindow.EffectiveTab.cs

@@ -4,6 +4,7 @@ using System.Numerics;
 using Dalamud.Interface;
 using ImGuiNET;
 using OtterGui;
+using OtterGui.Classes;
 using OtterGui.Raii;
 using Penumbra.Collections;
 using Penumbra.GameData.ByteString;

Penumbra/UI/ConfigWindow.ModPanel.Edit.cs

@@ -0,0 +1,444 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Numerics;
+using Dalamud.Interface;
+using ImGuiNET;
+using OtterGui;
+using OtterGui.Raii;
+using Penumbra.Mods;
+
+namespace Penumbra.UI;
+
+public partial class ConfigWindow
+{
+    private partial class ModPanel
+    {
+        public readonly Queue< Action > _delayedActions = new();
+
+        private void DrawAddOptionGroupInput()
+        {
+            ImGui.SetNextItemWidth( _window._inputTextWidth.X );
+            ImGui.InputTextWithHint( "##newGroup", "Add new option group...", ref _newGroupName, 256 );
+            ImGui.SameLine();
+
+            var nameValid = Mod.Manager.VerifyFileName( _mod, null, _newGroupName, false );
+            var tt        = nameValid ? "Add new option group to the mod." : "Can not add a group of this name.";
+            if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.Plus.ToIconString(), ImGui.GetFrameHeight() * Vector2.One,
+                   tt, !nameValid, true ) )
+            {
+                Penumbra.ModManager.AddModGroup( _mod, SelectType.Single, _newGroupName );
+                _newGroupName = string.Empty;
+            }
+        }
+
+        private Vector2 _cellPadding = Vector2.Zero;
+        private Vector2 _itemSpacing = Vector2.Zero;
+
+        private void DrawEditModTab()
+        {
+            using var tab = DrawTab( EditModTabHeader, Tabs.Edit );
+            if( !tab )
+            {
+                return;
+            }
+
+            using var child = ImRaii.Child( "##editChild", -Vector2.One );
+            if( !child )
+            {
+                return;
+            }
+
+            _cellPadding = ImGui.GetStyle().CellPadding with { X = 2 * ImGuiHelpers.GlobalScale };
+            _itemSpacing = ImGui.GetStyle().CellPadding with { X = 4 * ImGuiHelpers.GlobalScale };
+
+            EditRegularMeta();
+            ImGui.Dummy( _window._defaultSpace );
+
+            if( TextInput( "Mod Path", PathFieldIdx, NoFieldIdx, _leaf.FullName(), out var newPath, 256, _window._inputTextWidth.X ) )
+            {
+                _window._penumbra.ModFileSystem.RenameAndMove( _leaf, newPath );
+            }
+
+            ImGui.Dummy( _window._defaultSpace );
+            DrawAddOptionGroupInput();
+            ImGui.Dummy( _window._defaultSpace );
+
+            for( var groupIdx = 0; groupIdx < _mod.Groups.Count; ++groupIdx )
+            {
+                EditGroup( groupIdx );
+            }
+
+            EndActions();
+            EditDescriptionPopup();
+        }
+
+
+        // Special field indices to reuse the same string buffer.
+        private const int NoFieldIdx          = -1;
+        private const int NameFieldIdx        = -2;
+        private const int AuthorFieldIdx      = -3;
+        private const int VersionFieldIdx     = -4;
+        private const int WebsiteFieldIdx     = -5;
+        private const int PathFieldIdx        = -6;
+        private const int DescriptionFieldIdx = -7;
+
+        private void EditRegularMeta()
+        {
+            if( TextInput( "Name", NameFieldIdx, NoFieldIdx, _mod.Name, out var newName, 256, _window._inputTextWidth.X ) )
+            {
+                Penumbra.ModManager.ChangeModName( _mod.Index, newName );
+            }
+
+            if( TextInput( "Author", AuthorFieldIdx, NoFieldIdx, _mod.Author, out var newAuthor, 256, _window._inputTextWidth.X ) )
+            {
+                Penumbra.ModManager.ChangeModAuthor( _mod.Index, newAuthor );
+            }
+
+            if( TextInput( "Version", VersionFieldIdx, NoFieldIdx, _mod.Version, out var newVersion, 32, _window._inputTextWidth.X ) )
+            {
+                Penumbra.ModManager.ChangeModVersion( _mod.Index, newVersion );
+            }
+
+            if( TextInput( "Website", WebsiteFieldIdx, NoFieldIdx, _mod.Website, out var newWebsite, 256, _window._inputTextWidth.X ) )
+            {
+                Penumbra.ModManager.ChangeModWebsite( _mod.Index, newWebsite );
+            }
+
+            if( ImGui.Button( "Edit Description", _window._inputTextWidth ) )
+            {
+                _delayedActions.Enqueue( () => OpenEditDescriptionPopup( DescriptionFieldIdx ) );
+            }
+
+            if( ImGui.Button( "Edit Default Mod", _window._inputTextWidth ) )
+            {
+                _window.SubModPopup.Activate( _mod, -1, 0 );
+            }
+        }
+
+
+        // Temporary strings
+        private string? _currentEdit;
+        private int?    _currentGroupPriority;
+        private int     _currentField = -1;
+        private int     _optionIndex  = -1;
+
+        private string _newGroupName      = string.Empty;
+        private string _newOptionName     = string.Empty;
+        private string _newDescription    = string.Empty;
+        private int    _newDescriptionIdx = -1;
+
+        private void EditGroup( int groupIdx )
+        {
+            var       group = _mod.Groups[ groupIdx ];
+            using var id    = ImRaii.PushId( groupIdx );
+            using var frame = ImRaii.FramedGroup( $"Group #{groupIdx + 1}" );
+
+            using var style = ImRaii.PushStyle( ImGuiStyleVar.CellPadding, _cellPadding )
+               .Push( ImGuiStyleVar.ItemSpacing, _itemSpacing );
+
+            if( TextInput( "##Name", groupIdx, NoFieldIdx, group.Name, out var newGroupName, 256, _window._inputTextWidth.X ) )
+            {
+                Penumbra.ModManager.RenameModGroup( _mod, groupIdx, newGroupName );
+            }
+
+            ImGuiUtil.HoverTooltip( "Group Name" );
+            ImGui.SameLine();
+            if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.Trash.ToIconString(), ImGui.GetFrameHeight() * Vector2.One,
+                   "Delete this option group.\nHold Control while clicking to delete.", !ImGui.GetIO().KeyCtrl, true ) )
+            {
+                _delayedActions.Enqueue( () => Penumbra.ModManager.DeleteModGroup( _mod, groupIdx ) );
+            }
+
+            ImGui.SameLine();
+
+            if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.Edit.ToIconString(), ImGui.GetFrameHeight() * Vector2.One,
+                   "Edit group description.", false, true ) )
+            {
+                _delayedActions.Enqueue( () => OpenEditDescriptionPopup( groupIdx ) );
+            }
+
+            ImGui.SameLine();
+
+            if( PriorityInput( "##Priority", groupIdx, NoFieldIdx, group.Priority, out var priority, 50 * ImGuiHelpers.GlobalScale ) )
+            {
+                Penumbra.ModManager.ChangeGroupPriority( _mod, groupIdx, priority );
+            }
+
+            ImGuiUtil.HoverTooltip( "Group Priority" );
+
+            ImGui.SetNextItemWidth( _window._inputTextWidth.X - 2 * ImGui.GetFrameHeight() - 8 * ImGuiHelpers.GlobalScale );
+            using( var combo = ImRaii.Combo( "##GroupType", GroupTypeName( group.Type ) ) )
+            {
+                if( combo )
+                {
+                    foreach( var type in new[] { SelectType.Single, SelectType.Multi } )
+                    {
+                        if( ImGui.Selectable( GroupTypeName( type ), group.Type == type ) )
+                        {
+                            Penumbra.ModManager.ChangeModGroupType( _mod, groupIdx, type );
+                        }
+                    }
+                }
+            }
+
+            ImGui.SameLine();
+
+            var tt = groupIdx == 0 ? "Can not move this group further upwards." : $"Move this group up to group {groupIdx}.";
+            if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.ArrowUp.ToIconString(), ImGui.GetFrameHeight() * Vector2.One,
+                   tt, groupIdx == 0, true ) )
+            {
+                _delayedActions.Enqueue( () => Penumbra.ModManager.MoveModGroup( _mod, groupIdx, groupIdx - 1 ) );
+            }
+
+            ImGui.SameLine();
+            tt = groupIdx == _mod.Groups.Count - 1
+                ? "Can not move this group further downwards."
+                : $"Move this group down to group {groupIdx + 2}.";
+            if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.ArrowDown.ToIconString(), ImGui.GetFrameHeight() * Vector2.One,
+                   tt, groupIdx == _mod.Groups.Count - 1, true ) )
+            {
+                _delayedActions.Enqueue( () => Penumbra.ModManager.MoveModGroup( _mod, groupIdx, groupIdx + 1 ) );
+            }
+
+            ImGui.Dummy( _window._defaultSpace );
+
+            using var table = ImRaii.Table( string.Empty, 5, ImGuiTableFlags.SizingFixedFit );
+            ImGui.TableSetupColumn( "idx", ImGuiTableColumnFlags.WidthFixed, 60 * ImGuiHelpers.GlobalScale );
+            ImGui.TableSetupColumn( "name", ImGuiTableColumnFlags.WidthFixed, _window._inputTextWidth.X - 62 * ImGuiHelpers.GlobalScale );
+            ImGui.TableSetupColumn( "delete", ImGuiTableColumnFlags.WidthFixed, ImGui.GetFrameHeight() );
+            ImGui.TableSetupColumn( "edit", ImGuiTableColumnFlags.WidthFixed, ImGui.GetFrameHeight() );
+            ImGui.TableSetupColumn( "priority", ImGuiTableColumnFlags.WidthFixed, 50 * ImGuiHelpers.GlobalScale );
+            if( table )
+            {
+                for( var optionIdx = 0; optionIdx < group.Count; ++optionIdx )
+                {
+                    EditOption( group, groupIdx, optionIdx );
+                }
+
+                ImGui.TableNextColumn();
+                ImGui.TableNextColumn();
+                ImGui.SetNextItemWidth( -1 );
+                ImGui.InputTextWithHint( "##newOption", "Add new option...", ref _newOptionName, 256 );
+                ImGui.TableNextColumn();
+                if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.Plus.ToIconString(), ImGui.GetFrameHeight() * Vector2.One,
+                       "Add a new option to this group.", _newOptionName.Length == 0, true ) )
+                {
+                    Penumbra.ModManager.AddOption( _mod, groupIdx, _newOptionName );
+                    _newOptionName = string.Empty;
+                }
+            }
+        }
+
+        private static string GroupTypeName( SelectType type )
+            => type switch
+            {
+                SelectType.Single => "Single Group",
+                SelectType.Multi  => "Multi Group",
+                _                 => "Unknown",
+            };
+
+        private int _dragDropGroupIdx  = -1;
+        private int _dragDropOptionIdx = -1;
+
+        private void OptionDragDrop( IModGroup group, int groupIdx, int optionIdx )
+        {
+            const string label = "##DragOption";
+            using( var source = ImRaii.DragDropSource() )
+            {
+                if( source )
+                {
+                    if( ImGui.SetDragDropPayload( label, IntPtr.Zero, 0 ) )
+                    {
+                        _dragDropGroupIdx  = groupIdx;
+                        _dragDropOptionIdx = optionIdx;
+                    }
+
+                    ImGui.Text( $"Dragging option {group[ optionIdx ].Name} from group {group.Name}..." );
+                }
+            }
+
+            using( var target = ImRaii.DragDropTarget() )
+            {
+                if( target.Success && ImGuiUtil.IsDropping( label ) )
+                {
+                    if( _dragDropGroupIdx >= 0 && _dragDropOptionIdx >= 0 )
+                    {
+                        if( _dragDropGroupIdx == groupIdx )
+                        {
+                            // TODO
+                            Dalamud.Chat.Print(
+                                $"Dropped {_mod.Groups[ _dragDropGroupIdx ][ _dragDropOptionIdx ].Name} onto {_mod.Groups[ groupIdx ][ optionIdx ].Name}" );
+                        }
+                        else
+                        {
+                            Dalamud.Chat.Print(
+                                $"Dropped {_mod.Groups[ _dragDropGroupIdx ][ _dragDropOptionIdx ].Name} onto {_mod.Groups[ groupIdx ][ optionIdx ].Name}" );
+                        }
+                    }
+
+                    _dragDropGroupIdx  = -1;
+                    _dragDropOptionIdx = -1;
+                }
+            }
+        }
+
+        private void EditOption( IModGroup group, int groupIdx, int optionIdx )
+        {
+            var       option = group[ optionIdx ];
+            using var id     = ImRaii.PushId( optionIdx );
+            ImGui.TableNextColumn();
+            ImGui.AlignTextToFramePadding();
+            ImGui.Selectable( $"Option #{optionIdx + 1}" );
+            OptionDragDrop( group, groupIdx, optionIdx );
+
+            ImGui.TableNextColumn();
+            if( TextInput( "##Name", groupIdx, optionIdx, option.Name, out var newOptionName, 256, -1 ) )
+            {
+                Penumbra.ModManager.RenameOption( _mod, groupIdx, optionIdx, newOptionName );
+            }
+
+            ImGui.TableNextColumn();
+            if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.Trash.ToIconString(), ImGui.GetFrameHeight() * Vector2.One,
+                   "Delete this option.\nHold Control while clicking to delete.", !ImGui.GetIO().KeyCtrl, true ) )
+            {
+                _delayedActions.Enqueue( () => Penumbra.ModManager.DeleteOption( _mod, groupIdx, optionIdx ) );
+            }
+
+            ImGui.TableNextColumn();
+            if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.Edit.ToIconString(), ImGui.GetFrameHeight() * Vector2.One,
+                   "Edit this option.", false, true ) )
+            {
+                _window.SubModPopup.Activate( _mod, groupIdx, optionIdx );
+            }
+
+            ImGui.TableNextColumn();
+            if( group.Type == SelectType.Multi )
+            {
+                if( PriorityInput( "##Priority", groupIdx, optionIdx, group.OptionPriority( optionIdx ), out var priority,
+                       50 * ImGuiHelpers.GlobalScale ) )
+                {
+                    Penumbra.ModManager.ChangeOptionPriority( _mod, groupIdx, optionIdx, priority );
+                }
+
+                ImGuiUtil.HoverTooltip( "Option priority." );
+            }
+        }
+
+        private bool TextInput( string label, int field, int option, string oldValue, out string value, uint maxLength, float width )
+        {
+            var tmp = field == _currentField && option == _optionIndex ? _currentEdit ?? oldValue : oldValue;
+            ImGui.SetNextItemWidth( width );
+            if( ImGui.InputText( label, ref tmp, maxLength ) )
+            {
+                _currentEdit  = tmp;
+                _optionIndex  = option;
+                _currentField = field;
+            }
+
+            if( ImGui.IsItemDeactivatedAfterEdit() && _currentEdit != null )
+            {
+                var ret = _currentEdit != oldValue;
+                value         = _currentEdit;
+                _currentEdit  = null;
+                _currentField = NoFieldIdx;
+                _optionIndex  = NoFieldIdx;
+                return ret;
+            }
+
+            value = string.Empty;
+            return false;
+        }
+
+        private bool PriorityInput( string label, int field, int option, int oldValue, out int value, float width )
+        {
+            var tmp = field == _currentField && option == _optionIndex ? _currentGroupPriority ?? oldValue : oldValue;
+            ImGui.SetNextItemWidth( width );
+            if( ImGui.InputInt( label, ref tmp, 0, 0 ) )
+            {
+                _currentGroupPriority = tmp;
+                _optionIndex          = option;
+                _currentField         = field;
+            }
+
+            if( ImGui.IsItemDeactivatedAfterEdit() && _currentGroupPriority != null )
+            {
+                var ret = _currentGroupPriority != oldValue;
+                value                 = _currentGroupPriority.Value;
+                _currentGroupPriority = null;
+                _currentField         = NoFieldIdx;
+                _optionIndex          = NoFieldIdx;
+                return ret;
+            }
+
+            value = 0;
+            return false;
+        }
+
+        // Delete a marked group or option outside of iteration.
+        private void EndActions()
+        {
+            while( _delayedActions.TryDequeue( out var action ) )
+            {
+                action.Invoke();
+            }
+        }
+
+        private void OpenEditDescriptionPopup( int groupIdx )
+        {
+            _newDescriptionIdx = groupIdx;
+            _newDescription    = groupIdx < 0 ? _mod.Description : _mod.Groups[ groupIdx ].Description;
+            ImGui.OpenPopup( "Edit Description" );
+        }
+
+        private void EditDescriptionPopup()
+        {
+            using var popup = ImRaii.Popup( "Edit Description" );
+            if( popup )
+            {
+                if( ImGui.IsWindowAppearing() )
+                {
+                    ImGui.SetKeyboardFocusHere();
+                }
+
+                ImGui.InputTextMultiline( "##editDescription", ref _newDescription, 4096, ImGuiHelpers.ScaledVector2( 800, 800 ) );
+                ImGui.Dummy( _window._defaultSpace );
+
+                var buttonSize = ImGuiHelpers.ScaledVector2( 100, 0 );
+                var width = 2 * buttonSize.X
+                  + 4         * ImGui.GetStyle().FramePadding.X
+                  + ImGui.GetStyle().ItemSpacing.X;
+                ImGui.SetCursorPosX( ( 800 * ImGuiHelpers.GlobalScale - width ) / 2 );
+
+                var oldDescription = _newDescriptionIdx == DescriptionFieldIdx
+                    ? _mod.Description
+                    : _mod.Groups[ _newDescriptionIdx ].Description;
+
+                var tooltip = _newDescription != oldDescription ? string.Empty : "No changes made yet.";
+
+                if( ImGuiUtil.DrawDisabledButton( "Save", buttonSize, tooltip, tooltip.Length > 0 ) )
+                {
+                    if( _newDescriptionIdx == DescriptionFieldIdx )
+                    {
+                        Penumbra.ModManager.ChangeModDescription( _mod.Index, _newDescription );
+                    }
+                    else if( _newDescriptionIdx >= 0 )
+                    {
+                        Penumbra.ModManager.ChangeGroupDescription( _mod, _newDescriptionIdx, _newDescription );
+                    }
+
+                    ImGui.CloseCurrentPopup();
+                }
+
+                ImGui.SameLine();
+                if( ImGui.Button( "Cancel", buttonSize )
+                || ImGui.IsKeyPressed( ImGui.GetKeyIndex( ImGuiKey.Escape ) ) )
+                {
+                    _newDescriptionIdx = NoFieldIdx;
+                    _newDescription    = string.Empty;
+                    ImGui.CloseCurrentPopup();
+                }
+            }
+        }
+    }
+}

Penumbra/UI/ConfigWindow.ModPanel.Header.cs

@@ -0,0 +1,214 @@
+using System;
+using System.Diagnostics;
+using System.Numerics;
+using Dalamud.Interface;
+using Dalamud.Interface.GameFonts;
+using ImGuiNET;
+using OtterGui;
+using OtterGui.Raii;
+using Penumbra.UI.Classes;
+
+namespace Penumbra.UI;
+
+public partial class ConfigWindow
+{
+    private partial class ModPanel : IDisposable
+    {
+        // We use a big, nice game font for the title.
+        private readonly GameFontHandle _nameFont =
+            Dalamud.PluginInterface.UiBuilder.GetGameFontHandle( new GameFontStyle( GameFontFamilyAndSize.Jupiter23 ) );
+
+        public void Dispose()
+        {
+            _nameFont.Dispose();
+        }
+
+        // Header data.
+        private string _modName          = string.Empty;
+        private string _modAuthor        = string.Empty;
+        private string _modVersion       = string.Empty;
+        private string _modWebsite       = string.Empty;
+        private string _modWebsiteButton = string.Empty;
+        private bool   _websiteValid;
+
+        private float _modNameWidth;
+        private float _modAuthorWidth;
+        private float _modVersionWidth;
+        private float _modWebsiteButtonWidth;
+        private float _secondRowWidth;
+
+        // Draw the header for the current mod,
+        // consisting of its name, version, author and website, if they exist.
+        private void DrawModHeader()
+        {
+            var offset = DrawModName();
+            DrawVersion( offset );
+            DrawSecondRow( offset );
+        }
+
+        // Draw the mod name in the game font with a 2px border, centered,
+        // with at least the width of the version space to each side.
+        private float DrawModName()
+        {
+            var decidingWidth = Math.Max( _secondRowWidth, ImGui.GetWindowWidth() );
+            var offsetWidth   = ( decidingWidth - _modNameWidth ) / 2;
+            var offsetVersion = _modVersion.Length > 0
+                ? _modVersionWidth + ImGui.GetStyle().ItemSpacing.X + ImGui.GetStyle().WindowPadding.X
+                : 0;
+            var offset = Math.Max( offsetWidth, offsetVersion );
+            if( offset > 0 )
+            {
+                ImGui.SetCursorPosX( offset );
+            }
+
+            using var color = ImRaii.PushColor( ImGuiCol.Border, Colors.MetaInfoText );
+            using var style = ImRaii.PushStyle( ImGuiStyleVar.FrameBorderSize, 2 * ImGuiHelpers.GlobalScale );
+            using var font  = ImRaii.PushFont( _nameFont.ImFont, _nameFont.Available );
+            ImGuiUtil.DrawTextButton( _modName, Vector2.Zero, 0 );
+            return offset;
+        }
+
+        // Draw the version in the top-right corner.
+        private void DrawVersion( float offset )
+        {
+            var oldPos = ImGui.GetCursorPos();
+            ImGui.SetCursorPos( new Vector2( 2 * offset + _modNameWidth - _modVersionWidth - ImGui.GetStyle().WindowPadding.X,
+                ImGui.GetStyle().FramePadding.Y ) );
+            ImGuiUtil.TextColored( Colors.MetaInfoText, _modVersion );
+            ImGui.SetCursorPos( oldPos );
+        }
+
+        // Draw author and website if they exist. The website is a button if it is valid.
+        // Usually, author begins at the left boundary of the name,
+        // and website ends at the right boundary of the name.
+        // If their combined width is larger than the name, they are combined-centered.
+        private void DrawSecondRow( float offset )
+        {
+            if( _modAuthor.Length == 0 )
+            {
+                if( _modWebsiteButton.Length == 0 )
+                {
+                    ImGui.NewLine();
+                    return;
+                }
+
+                offset += ( _modNameWidth - _modWebsiteButtonWidth ) / 2;
+                ImGui.SetCursorPosX( offset );
+                DrawWebsite();
+            }
+            else if( _modWebsiteButton.Length == 0 )
+            {
+                offset += ( _modNameWidth - _modAuthorWidth ) / 2;
+                ImGui.SetCursorPosX( offset );
+                DrawAuthor();
+            }
+            else if( _secondRowWidth < _modNameWidth )
+            {
+                ImGui.SetCursorPosX( offset );
+                DrawAuthor();
+                ImGui.SameLine( offset + _modNameWidth - _modWebsiteButtonWidth );
+                DrawWebsite();
+            }
+            else
+            {
+                offset -= ( _secondRowWidth - _modNameWidth ) / 2;
+                if( offset > 0 )
+                {
+                    ImGui.SetCursorPosX( offset );
+                }
+
+                DrawAuthor();
+                ImGui.SameLine();
+                DrawWebsite();
+            }
+        }
+
+        // Draw the author text.
+        private void DrawAuthor()
+        {
+            using var style = ImRaii.PushStyle( ImGuiStyleVar.ItemSpacing, Vector2.Zero );
+            ImGuiUtil.TextColored( Colors.MetaInfoText, "by " );
+            ImGui.SameLine();
+            style.Pop();
+            ImGui.Text( _mod.Author );
+        }
+
+        // Draw either a website button if the source is a valid website address,
+        // or a source text if it is not.
+        private void DrawWebsite()
+        {
+            if( _websiteValid )
+            {
+                if( ImGui.SmallButton( _modWebsiteButton ) )
+                {
+                    try
+                    {
+                        var process = new ProcessStartInfo( _modWebsite )
+                        {
+                            UseShellExecute = true,
+                        };
+                        Process.Start( process );
+                    }
+                    catch
+                    {
+                        // ignored
+                    }
+                }
+
+                ImGuiUtil.HoverTooltip( _modWebsite );
+            }
+            else
+            {
+                using var style = ImRaii.PushStyle( ImGuiStyleVar.ItemSpacing, Vector2.Zero );
+                ImGuiUtil.TextColored( Colors.MetaInfoText, "from " );
+                ImGui.SameLine();
+                style.Pop();
+                ImGui.Text( _mod.Website );
+            }
+        }
+
+        // Update all mod header data. Should someone change frame padding or item spacing,
+        // or his default font, this will break, but he will just have to select a different mod to restore.
+        private void UpdateModData()
+        {
+            // Name
+            var name = $" {_mod.Name} ";
+            if( name != _modName )
+            {
+                using var font = ImRaii.PushFont( _nameFont.ImFont, _nameFont.Available );
+                _modName      = name;
+                _modNameWidth = ImGui.CalcTextSize( name ).X + 2 * ( ImGui.GetStyle().FramePadding.X + 2 * ImGuiHelpers.GlobalScale );
+            }
+
+            // Author
+            var author = _mod.Author.IsEmpty ? string.Empty : $"by  {_mod.Author}";
+            if( author != _modAuthor )
+            {
+                _modAuthor      = author;
+                _modAuthorWidth = ImGui.CalcTextSize( author ).X;
+                _secondRowWidth = _modAuthorWidth + _modWebsiteButtonWidth + ImGui.GetStyle().ItemSpacing.X;
+            }
+
+            // Version
+            var version = _mod.Version.Length > 0 ? $"({_mod.Version})" : string.Empty;
+            if( version != _modVersion )
+            {
+                _modVersion      = version;
+                _modVersionWidth = ImGui.CalcTextSize( version ).X;
+            }
+
+            // Website
+            if( _modWebsite != _mod.Website )
+            {
+                _modWebsite = _mod.Website;
+                _websiteValid = Uri.TryCreate( _modWebsite, UriKind.Absolute, out var uriResult )
+                 && ( uriResult.Scheme == Uri.UriSchemeHttps || uriResult.Scheme == Uri.UriSchemeHttp );
+                _modWebsiteButton = _websiteValid ? "Open Website" : _modWebsite.Length == 0 ? string.Empty : $"from  {_modWebsite}";
+                _modWebsiteButtonWidth = _websiteValid
+                    ? ImGui.CalcTextSize( _modWebsiteButton ).X + 2 * ImGui.GetStyle().FramePadding.X
+                    : ImGui.CalcTextSize( _modWebsiteButton ).X;
+                _secondRowWidth = _modAuthorWidth + _modWebsiteButtonWidth + ImGui.GetStyle().ItemSpacing.X;
+            }
+        }
+    }
+}

Penumbra/UI/ConfigWindow.ModPanel.Settings.cs

@@ -0,0 +1,207 @@
+using System.Linq;
+using System.Numerics;
+using Dalamud.Interface;
+using ImGuiNET;
+using OtterGui;
+using OtterGui.Classes;
+using OtterGui.Raii;
+using OtterGui.Widgets;
+using Penumbra.Collections;
+using Penumbra.Mods;
+using Penumbra.UI.Classes;
+
+namespace Penumbra.UI;
+
+public partial class ConfigWindow
+{
+    private partial class ModPanel
+    {
+        private ModSettings                      _settings   = null!;
+        private ModCollection                     _collection = null!;
+        private bool                              _emptySetting;
+        private bool                              _inherited;
+        private SubList< ConflictCache.Conflict > _conflicts = SubList< ConflictCache.Conflict >.Empty;
+
+        private int? _currentPriority;
+
+        private void UpdateSettingsData( ModFileSystemSelector selector )
+        {
+            _settings     = selector.SelectedSettings;
+            _collection   = selector.SelectedSettingCollection;
+            _emptySetting = _settings   == ModSettings.Empty;
+            _inherited    = _collection != Penumbra.CollectionManager.Current;
+            _conflicts    = Penumbra.CollectionManager.Current.ModConflicts( _mod.Index );
+        }
+
+        // Draw the whole settings tab as well as its contents.
+        private void DrawSettingsTab()
+        {
+            using var tab = DrawTab( SettingsTabHeader, Tabs.Settings );
+            if( !tab )
+            {
+                return;
+            }
+
+            using var child = ImRaii.Child( "##settings" );
+            if( !child )
+            {
+                return;
+            }
+
+            DrawInheritedWarning();
+            ImGui.Dummy( _window._defaultSpace );
+            DrawEnabledInput();
+            ImGui.SameLine();
+            DrawPriorityInput();
+            DrawRemoveSettings();
+            ImGui.Dummy( _window._defaultSpace );
+            for( var idx = 0; idx < _mod.Groups.Count; ++idx )
+            {
+                DrawSingleGroup( _mod.Groups[ idx ], idx );
+            }
+
+            for( var idx = 0; idx < _mod.Groups.Count; ++idx )
+            {
+                DrawMultiGroup( _mod.Groups[ idx ], idx );
+            }
+        }
+
+
+        // Draw a big red bar if the current setting is inherited.
+        private void DrawInheritedWarning()
+        {
+            if( !_inherited )
+            {
+                return;
+            }
+
+            using var color = ImRaii.PushColor( ImGuiCol.Button, Colors.PressEnterWarningBg );
+            var       width = new Vector2( ImGui.GetContentRegionAvail().X, 0 );
+            if( ImGui.Button( $"These settings are inherited from {_collection.Name}.", width ) )
+            {
+                Penumbra.CollectionManager.Current.SetModInheritance( _mod.Index, false );
+            }
+
+            ImGuiUtil.HoverTooltip( "You can click this button to copy the current settings to the current selection.\n"
+              + "You can also just change any setting, which will copy the settings with the single setting changed to the current selection." );
+        }
+
+        // Draw a checkbox for the enabled status of the mod.
+        private void DrawEnabledInput()
+        {
+            var enabled = _settings.Enabled;
+            if( ImGui.Checkbox( "Enabled", ref enabled ) )
+            {
+                Penumbra.CollectionManager.Current.SetModState( _mod.Index, enabled );
+            }
+        }
+
+        // Draw a priority input.
+        // Priority is changed on deactivation of the input box.
+        private void DrawPriorityInput()
+        {
+            var priority = _currentPriority ?? _settings.Priority;
+            ImGui.SetNextItemWidth( 50 * ImGuiHelpers.GlobalScale );
+            if( ImGui.InputInt( "##Priority", ref priority, 0, 0 ) )
+            {
+                _currentPriority = priority;
+            }
+
+            if( ImGui.IsItemDeactivatedAfterEdit() && _currentPriority.HasValue )
+            {
+                if( _currentPriority != _settings.Priority )
+                {
+                    Penumbra.CollectionManager.Current.SetModPriority( _mod.Index, _currentPriority.Value );
+                }
+
+                _currentPriority = null;
+            }
+
+            ImGuiUtil.LabeledHelpMarker( "Priority", "Mods with higher priority take precedence before Mods with lower priority.\n"
+              + "That means, if Mod A should overwrite changes from Mod B, Mod A should have higher priority than Mod B." );
+        }
+
+        // Draw a button to remove the current settings and inherit them instead
+        // on the top-right corner of the window/tab.
+        private void DrawRemoveSettings()
+        {
+            const string text = "Remove Settings";
+            if( _inherited || _emptySetting )
+            {
+                return;
+            }
+
+            var scroll = ImGui.GetScrollMaxY() > 0 ? ImGui.GetStyle().ScrollbarSize : 0;
+            ImGui.SameLine( ImGui.GetWindowWidth() - ImGui.CalcTextSize( text ).X - ImGui.GetStyle().FramePadding.X * 2 - scroll);
+            if( ImGui.Button( text ) )
+            {
+                Penumbra.CollectionManager.Current.SetModInheritance( _mod.Index, true );
+            }
+
+            ImGuiUtil.HoverTooltip( "Remove current settings from this collection so that it can inherit them.\n"
+              + "If no inherited collection has settings for this mod, it will be disabled." );
+        }
+
+        // Draw a single group selector as a combo box.
+        // If a description is provided, add a help marker besides it.
+        private void DrawSingleGroup( IModGroup group, int groupIdx )
+        {
+            if( group.Type != SelectType.Single || !group.IsOption )
+            {
+                return;
+            }
+
+            using var id             = ImRaii.PushId( groupIdx );
+            var       selectedOption = _emptySetting ? 0 : ( int )_settings.Settings[ groupIdx ];
+            ImGui.SetNextItemWidth( _window._inputTextWidth.X * 3 / 4 );
+            using var combo = ImRaii.Combo( string.Empty, group[ selectedOption ].Name );
+            if( combo )
+            {
+                for( var idx2 = 0; idx2 < group.Count; ++idx2 )
+                {
+                    if( ImGui.Selectable( group[ idx2 ].Name, idx2 == selectedOption ) )
+                    {
+                        Penumbra.CollectionManager.Current.SetModSetting( _mod.Index, groupIdx, ( uint )idx2 );
+                    }
+                }
+            }
+
+            combo.Dispose();
+            ImGui.SameLine();
+            if( group.Description.Length > 0 )
+            {
+                ImGuiUtil.LabeledHelpMarker( group.Name, group.Description );
+            }
+            else
+            {
+                ImGui.Text( group.Name );
+            }
+        }
+
+        // Draw a multi group selector as a bordered set of checkboxes.
+        // If a description is provided, add a help marker in the title.
+        private void DrawMultiGroup( IModGroup group, int groupIdx )
+        {
+            if( group.Type != SelectType.Multi || !group.IsOption )
+            {
+                return;
+            }
+
+            using var id    = ImRaii.PushId( groupIdx );
+            var       flags = _emptySetting ? 0u : _settings.Settings[ groupIdx ];
+            Widget.BeginFramedGroup( group.Name, group.Description );
+            for( var idx2 = 0; idx2 < group.Count; ++idx2 )
+            {
+                var flag    = 1u << idx2;
+                var setting = ( flags & flag ) != 0;
+                if( ImGui.Checkbox( group[ idx2 ].Name, ref setting ) )
+                {
+                    flags = setting ? flags | flag : flags & ~flag;
+                    Penumbra.CollectionManager.Current.SetModSetting( _mod.Index, groupIdx, flags );
+                }
+            }
+
+            Widget.EndFramedGroup();
+        }
+    }
+}

Penumbra/UI/ConfigWindow.ModPanel.Tabs.cs

@@ -0,0 +1,178 @@
+using System;
+using System.ComponentModel.Design;
+using System.Linq;
+using System.Numerics;
+using ImGuiNET;
+using OtterGui;
+using OtterGui.Classes;
+using OtterGui.Raii;
+using Penumbra.GameData.ByteString;
+using Penumbra.Meta.Manipulations;
+using Penumbra.Mods;
+using Penumbra.UI.Classes;
+
+namespace Penumbra.UI;
+
+public partial class ConfigWindow
+{
+    private partial class ModPanel
+    {
+        [Flags]
+        private enum Tabs
+        {
+            Description  = 0x01,
+            Settings     = 0x02,
+            ChangedItems = 0x04,
+            Conflicts    = 0x08,
+            Edit         = 0x10,
+        };
+
+        // We want to keep the preferred tab selected even if switching through mods.
+        private Tabs _preferredTab  = Tabs.Settings;
+        private Tabs _availableTabs = 0;
+
+        // Required to use tabs that can not be closed but have a flag to set them open.
+        private static readonly Utf8String ConflictTabHeader     = Utf8String.FromStringUnsafe( "Conflicts", false );
+        private static readonly Utf8String DescriptionTabHeader  = Utf8String.FromStringUnsafe( "Description", false );
+        private static readonly Utf8String SettingsTabHeader     = Utf8String.FromStringUnsafe( "Settings", false );
+        private static readonly Utf8String ChangedItemsTabHeader = Utf8String.FromStringUnsafe( "Changed Items", false );
+        private static readonly Utf8String EditModTabHeader      = Utf8String.FromStringUnsafe( "Edit Mod", false );
+
+        private void DrawTabBar()
+        {
+            ImGui.Dummy( _window._defaultSpace );
+            using var tabBar = ImRaii.TabBar( "##ModTabs" );
+            if( !tabBar )
+            {
+                return;
+            }
+
+            _availableTabs = Tabs.Settings
+              | ( _mod.ChangedItems.Count > 0 ? Tabs.ChangedItems : 0 )
+              | ( _mod.Description.Length > 0 ? Tabs.Description : 0 )
+              | ( _conflicts.Count        > 0 ? Tabs.Conflicts : 0 )
+              | ( Penumbra.Config.ShowAdvanced ? Tabs.Edit : 0 );
+
+            DrawSettingsTab();
+            DrawDescriptionTab();
+            DrawChangedItemsTab();
+            DrawConflictsTab();
+            DrawEditModTab();
+        }
+
+        // Just a simple text box with the wrapped description, if it exists.
+        private void DrawDescriptionTab()
+        {
+            using var tab = DrawTab( DescriptionTabHeader, Tabs.Description );
+            if( !tab )
+            {
+                return;
+            }
+
+            using var child = ImRaii.Child( "##description" );
+            if( !child )
+            {
+                return;
+            }
+
+            ImGui.TextWrapped( _mod.Description );
+        }
+
+        // A simple clipped list of changed items.
+        private void DrawChangedItemsTab()
+        {
+            using var tab = DrawTab( ChangedItemsTabHeader, Tabs.ChangedItems );
+            if( !tab )
+            {
+                return;
+            }
+
+            using var list = ImRaii.ListBox( "##changedItems", -Vector2.One );
+            if( !list )
+            {
+                return;
+            }
+
+            var zipList = ZipList.FromSortedList( _mod.ChangedItems );
+            var height  = ImGui.GetTextLineHeight();
+            ImGuiClip.ClippedDraw( zipList, kvp => _window.DrawChangedItem( kvp.Item1, kvp.Item2 ), height );
+        }
+
+        // If any conflicts exist, show them in this tab.
+        private void DrawConflictsTab()
+        {
+            using var tab = DrawTab( ConflictTabHeader, Tabs.Conflicts );
+            if( !tab )
+            {
+                return;
+            }
+
+            using var box = ImRaii.ListBox( "##conflicts" );
+            if( !box )
+            {
+                return;
+            }
+            var       conflicts = Penumbra.CollectionManager.Current.ModConflicts( _mod.Index );
+            Mod?      oldBadMod = null;
+            using var indent    = ImRaii.PushIndent( 0f );
+            foreach( var conflict in conflicts )
+            {
+                var badMod = Penumbra.ModManager[ conflict.Mod2 ];
+                if( badMod != oldBadMod )
+                {
+                    if( oldBadMod != null )
+                    {
+                        indent.Pop( 30f );
+                    }
+            
+                    if( ImGui.Selectable( badMod.Name ) )
+                    {
+                        _window._selector.SelectByValue( badMod );
+                    }
+            
+                    ImGui.SameLine();
+                    using var color = ImRaii.PushColor( ImGuiCol.Text, conflict.Mod1Priority ? ColorId.HandledConflictMod.Value() : ColorId.ConflictingMod.Value() );
+                    ImGui.Text( $"(Priority {Penumbra.CollectionManager.Current[ conflict.Mod2 ].Settings!.Priority})" );
+            
+                    indent.Push( 30f );
+                }
+            
+                if( conflict.Data is Utf8GamePath p )
+                {
+                    unsafe
+                    {
+                        ImGuiNative.igSelectable_Bool( p.Path.Path, 0, ImGuiSelectableFlags.None, Vector2.Zero );
+                    }
+                }
+                else if( conflict.Data is MetaManipulation m )
+                {
+                    ImGui.Selectable( m.Manipulation?.ToString() ?? string.Empty );
+                }
+            
+                oldBadMod = badMod;
+            }
+        }
+
+
+        // Draw a tab by given name if it is available, and deal with changing the preferred tab.
+        private ImRaii.IEndObject DrawTab( Utf8String name, Tabs flag )
+        {
+            if( !_availableTabs.HasFlag( flag ) )
+            {
+                return ImRaii.IEndObject.Empty;
+            }
+
+            var flags = _preferredTab == flag ? ImGuiTabItemFlags.SetSelected : ImGuiTabItemFlags.None;
+            unsafe
+            {
+                var tab = ImRaii.TabItem( name.Path, flags );
+                if( ImGui.IsItemClicked() )
+                {
+                    _preferredTab = flag;
+                }
+
+                return tab;
+            }
+        }
+    }
+}

Penumbra/UI/ConfigWindow.ModsTab.cs

@@ -1,386 +1,15 @@
 using System;
-using System.Diagnostics;
 using System.Numerics;
 using Dalamud.Interface;
 using ImGuiNET;
 using OtterGui;
 using OtterGui.Raii;
-using OtterGui.Widgets;
 using Penumbra.Collections;
 using Penumbra.Mods;
 using Penumbra.UI.Classes;
 
 namespace Penumbra.UI;
 
-public partial class ConfigWindow
-{
-    private class ModPanel
-    {
-        private readonly ConfigWindow       _window;
-        private          bool               _valid;
-        private          bool               _emptySetting;
-        private          bool               _inherited;
-        private          ModFileSystem.Leaf _leaf         = null!;
-        private          Mod2               _mod          = null!;
-        private          ModSettings2       _settings     = null!;
-        private          ModCollection      _collection   = null!;
-        private          string             _lastWebsite  = string.Empty;
-        private          bool               _websiteValid;
-
-        private string? _currentSortOrderPath;
-        private int?    _currentPriority;
-
-        public ModPanel( ConfigWindow window )
-            => _window = window;
-
-        private void Init( ModFileSystemSelector selector )
-        {
-            _valid = selector.Selected != null;
-            if( !_valid )
-            {
-                return;
-            }
-
-            _leaf         = selector.SelectedLeaf!;
-            _mod          = selector.Selected!;
-            _settings     = selector.SelectedSettings;
-            _collection   = selector.SelectedSettingCollection;
-            _emptySetting = _settings   == ModSettings2.Empty;
-            _inherited    = _collection != Penumbra.CollectionManager.Current;
-        }
-
-        public void Draw( ModFileSystemSelector selector )
-        {
-            Init( selector );
-            if( !_valid )
-            {
-                return;
-            }
-
-            DrawInheritedWarning();
-            DrawHeaderLine();
-            DrawFilesystemPath();
-            DrawEnabledInput();
-            ImGui.SameLine();
-            DrawPriorityInput();
-            DrawRemoveSettings();
-            DrawTabBar();
-        }
-
-        private void DrawDescriptionTab()
-        {
-            if( _mod.Description.Length == 0 )
-            {
-                return;
-            }
-
-            using var tab = ImRaii.TabItem( "Description" );
-            if( !tab )
-            {
-                return;
-            }
-
-            using var child = ImRaii.Child( "##tab" );
-            if( !child )
-            {
-                return;
-            }
-
-            ImGui.TextWrapped( _mod.Description );
-        }
-
-        private void DrawSettingsTab()
-        {
-            if( !_mod.HasOptions )
-            {
-                return;
-            }
-
-            using var tab = ImRaii.TabItem( "Settings" );
-            if( !tab )
-            {
-                return;
-            }
-
-            using var child = ImRaii.Child( "##tab" );
-            if( !child )
-            {
-                return;
-            }
-
-            for( var idx = 0; idx < _mod.Groups.Count; ++idx )
-            {
-                var group = _mod.Groups[ idx ];
-                if( group.Type == SelectType.Single && group.IsOption )
-                {
-                    using var id             = ImRaii.PushId( idx );
-                    var       selectedOption = _emptySetting ? 0 : ( int )_settings.Settings[ idx ];
-                    ImGui.SetNextItemWidth( _window._inputTextWidth.X );
-                    using var combo = ImRaii.Combo( string.Empty, group[ selectedOption ].Name );
-                    if( combo )
-                    {
-                        for( var idx2 = 0; idx2 < group.Count; ++idx2 )
-                        {
-                            if( ImGui.Selectable( group[ idx2 ].Name, idx2 == selectedOption ) )
-                            {
-                                Penumbra.CollectionManager.Current.SetModSetting( _mod.Index, idx, ( uint )idx2 );
-                            }
-                        }
-                    }
-
-                    combo.Dispose();
-                    ImGui.SameLine();
-                    if( group.Description.Length > 0 )
-                    {
-                        ImGuiUtil.LabeledHelpMarker( group.Name, group.Description );
-                    }
-                    else
-                    {
-                        ImGui.Text( group.Name );
-                    }
-                }
-            }
-
-            // TODO add description
-            for( var idx = 0; idx < _mod.Groups.Count; ++idx )
-            {
-                var group = _mod.Groups[ idx ];
-                if( group.Type == SelectType.Multi && group.IsOption )
-                {
-                    using var id    = ImRaii.PushId( idx );
-                    var       flags = _emptySetting ? 0u : _settings.Settings[ idx ];
-                    Widget.BeginFramedGroup( group.Name );
-                    for( var idx2 = 0; idx2 < group.Count; ++idx2 )
-                    {
-                        var flag    = 1u << idx2;
-                        var setting = ( flags & flag ) != 0;
-                        if( ImGui.Checkbox( group[ idx2 ].Name, ref setting ) )
-                        {
-                            flags = setting ? flags | flag : flags & ~flag;
-                            Penumbra.CollectionManager.Current.SetModSetting( _mod.Index, idx, flags );
-                        }
-                    }
-
-                    Widget.EndFramedGroup();
-                }
-            }
-        }
-
-        private void DrawChangedItemsTab()
-        {
-            if( _mod.ChangedItems.Count == 0 )
-            {
-                return;
-            }
-
-            using var tab = ImRaii.TabItem( "Changed Items" );
-            if( !tab )
-            {
-                return;
-            }
-
-            using var list = ImRaii.ListBox( "##changedItems", -Vector2.One );
-            if( !list )
-            {
-                return;
-            }
-
-            foreach( var (name, data) in _mod.ChangedItems )
-            {
-                _window.DrawChangedItem( name, data );
-            }
-        }
-
-        private void DrawTabBar()
-        {
-            using var tabBar = ImRaii.TabBar( "##ModTabs" );
-            if( !tabBar )
-            {
-                return;
-            }
-
-            DrawDescriptionTab();
-            DrawSettingsTab();
-            DrawChangedItemsTab();
-        }
-
-        private void DrawInheritedWarning()
-        {
-            if( _inherited )
-            {
-                using var color = ImRaii.PushColor( ImGuiCol.Button, Colors.PressEnterWarningBg );
-                var       w     = new Vector2( ImGui.GetContentRegionAvail().X, 0 );
-                if( ImGui.Button( $"These settings are inherited from {_collection.Name}.", w ) )
-                {
-                    Penumbra.CollectionManager.Current.SetModInheritance( _mod.Index, false );
-                }
-            }
-        }
-
-        private void DrawPriorityInput()
-        {
-            var priority = _currentPriority ?? _settings.Priority;
-            ImGui.SetNextItemWidth( 50 * ImGuiHelpers.GlobalScale );
-            if( ImGui.InputInt( "Priority", ref priority, 0, 0 ) )
-            {
-                _currentPriority = priority;
-            }
-
-            if( ImGui.IsItemDeactivatedAfterEdit() && _currentPriority.HasValue )
-            {
-                if( _currentPriority != _settings.Priority )
-                {
-                    Penumbra.CollectionManager.Current.SetModPriority( _mod.Index, _currentPriority.Value );
-                }
-
-                _currentPriority = null;
-            }
-        }
-
-        private void DrawRemoveSettings()
-        {
-            if( _inherited )
-            {
-                return;
-            }
-
-            ImGui.SameLine();
-            if( ImGui.Button( "Remove Settings" ) )
-            {
-                Penumbra.CollectionManager.Current.SetModInheritance( _mod.Index, true );
-            }
-
-            ImGuiUtil.HoverTooltip( "Remove current settings from this collection so that it can inherit them.\n"
-              + "If no inherited collection has settings for this mod, it will be disabled." );
-        }
-
-        private void DrawEnabledInput()
-        {
-            var enabled = _settings.Enabled;
-            if( ImGui.Checkbox( "Enabled", ref enabled ) )
-            {
-                Penumbra.CollectionManager.Current.SetModState( _mod.Index, enabled );
-            }
-        }
-
-        private void DrawFilesystemPath()
-        {
-            var fullName = _leaf.FullName();
-            var path     = _currentSortOrderPath ?? fullName;
-            ImGui.SetNextItemWidth( 300 * ImGuiHelpers.GlobalScale );
-            if( ImGui.InputText( "Sort Order", ref path, 256 ) )
-            {
-                _currentSortOrderPath = path;
-            }
-
-            if( ImGui.IsItemDeactivatedAfterEdit() && _currentSortOrderPath != null )
-            {
-                if( _currentSortOrderPath != fullName )
-                {
-                    _window._penumbra.ModFileSystem.RenameAndMove( _leaf, _currentSortOrderPath );
-                }
-
-                _currentSortOrderPath = null;
-            }
-        }
-
-
-        // Draw the first info line for the mod panel,
-        // containing all basic meta information.
-        private void DrawHeaderLine()
-        {
-            DrawName();
-            ImGui.SameLine();
-            DrawVersion();
-            ImGui.SameLine();
-            DrawAuthor();
-            ImGui.SameLine();
-            DrawWebsite();
-        }
-
-        // Draw the mod name.
-        private void DrawName()
-        {
-            ImGui.Text( _mod.Name.Text );
-        }
-
-        // Draw the author of the mod, if any.
-        private void DrawAuthor()
-        {
-            using var group = ImRaii.Group();
-            ImGuiUtil.TextColored( Colors.MetaInfoText, "by" );
-            ImGui.SameLine();
-            ImGui.Text( _mod.Author.IsEmpty ? "Unknown" : _mod.Author.Text );
-        }
-
-        // Draw the mod version, if any.
-        private void DrawVersion()
-        {
-            if( _mod.Version.Length > 0 )
-            {
-                ImGui.Text( $"(Version {_mod.Version})" );
-            }
-            else
-            {
-                ImGui.Dummy( Vector2.Zero );
-            }
-        }
-
-        // Update the last seen website and check for validity.
-        private void UpdateWebsite( string newWebsite )
-        {
-            if( _lastWebsite == newWebsite )
-            {
-                return;
-            }
-
-            _lastWebsite = newWebsite;
-            _websiteValid = Uri.TryCreate( _lastWebsite, UriKind.Absolute, out var uriResult )
-             && ( uriResult.Scheme == Uri.UriSchemeHttps || uriResult.Scheme == Uri.UriSchemeHttp );
-        }
-
-        // Draw the website source either as a button to open the site,
-        // if it is a valid http website, or as pure text.
-        private void DrawWebsite()
-        {
-            UpdateWebsite( _mod.Website );
-            if( _lastWebsite.Length == 0 )
-            {
-                ImGui.Dummy( Vector2.Zero );
-                return;
-            }
-
-            using var group = ImRaii.Group();
-            if( _websiteValid )
-            {
-                if( ImGui.Button( "Open Website" ) )
-                {
-                    try
-                    {
-                        var process = new ProcessStartInfo( _lastWebsite )
-                        {
-                            UseShellExecute = true,
-                        };
-                        Process.Start( process );
-                    }
-                    catch
-                    {
-                        // ignored
-                    }
-                }
-
-                ImGuiUtil.HoverTooltip( _lastWebsite );
-            }
-            else
-            {
-                ImGuiUtil.TextColored( Colors.MetaInfoText, "from" );
-                ImGui.SameLine();
-                ImGui.Text( _lastWebsite );
-            }
-        }
-    }
-}
-
 public partial class ConfigWindow
 {
     public void DrawModsTab()
@@ -401,14 +30,13 @@ public partial class ConfigWindow
         using var group = ImRaii.Group();
         DrawHeaderLine();
 
-        using var child = ImRaii.Child( "##ModsTabMod", -Vector2.One, true );
+        using var child = ImRaii.Child( "##ModsTabMod", -Vector2.One, true, ImGuiWindowFlags.HorizontalScrollbar );
         if( child )
         {
             _modPanel.Draw( _selector );
         }
     }
 
-
     // Draw the header line that can quick switch between collections.
     private void DrawHeaderLine()
     {
@@ -466,4 +94,46 @@ public partial class ConfigWindow
             ? absoluteSize
             : Math.Max( absoluteSize, relativeSize * ImGui.GetContentRegionAvail().X / 100 );
     }
+
+    // The basic setup for the mod panel.
+    // Details are in other files.
+    private partial class ModPanel
+    {
+        private readonly ConfigWindow _window;
+
+        private bool               _valid;
+        private ModFileSystem.Leaf _leaf = null!;
+        private Mod               _mod  = null!;
+
+        public ModPanel( ConfigWindow window )
+        {
+            _window = window;
+        }
+
+        public void Draw( ModFileSystemSelector selector )
+        {
+            Init( selector );
+            if( !_valid )
+            {
+                return;
+            }
+
+            DrawModHeader();
+            DrawTabBar();
+        }
+
+        private void Init( ModFileSystemSelector selector )
+        {
+            _valid = selector.Selected != null;
+            if( !_valid )
+            {
+                return;
+            }
+
+            _leaf = selector.SelectedLeaf!;
+            _mod  = selector.Selected!;
+            UpdateSettingsData( selector );
+            UpdateModData();
+        }
+    }
 }

Penumbra/UI/ConfigWindow.SettingsTab.cs

@@ -47,7 +47,7 @@ public partial class ConfigWindow
             DrawAdvancedSettings();
         }
 
-        private          string?           _settingsNewModDirectory;
+        private          string?           _newModDirectory;
         private readonly FileDialogManager _dialogManager = new();
         private          bool              _dialogOpen;
 
@@ -70,12 +70,18 @@ public partial class ConfigWindow
                 }
                 else
                 {
-                    // TODO
+                    _newModDirectory ??= Penumbra.Config.ModDirectory;
-                    //_dialogManager.OpenFolderDialog( "Choose Mod Directory", ( b, s ) =>
+                    var startDir = Directory.Exists( _newModDirectory )
-                    //{
+                        ? _newModDirectory
-                    //    _newModDirectory = b ? s : _newModDirectory;
+                        : Directory.Exists( Penumbra.Config.ModDirectory )
-                    //    _dialogOpen      = false;
+                            ? Penumbra.Config.ModDirectory
-                    //}, _newModDirectory, false);
+                            : ".";
+
+                    _dialogManager.OpenFolderDialog( "Choose Mod Directory", ( b, s ) =>
+                    {
+                        _newModDirectory = b ? s : _newModDirectory;
+                        _dialogOpen      = false;
+                    }, startDir );
                     _dialogOpen = true;
                 }
             }
@@ -99,12 +105,12 @@ public partial class ConfigWindow
 
         private void DrawRootFolder()
         {
-            _settingsNewModDirectory ??= Penumbra.Config.ModDirectory;
+            _newModDirectory ??= Penumbra.Config.ModDirectory;
 
             var       spacing = 3 * ImGuiHelpers.GlobalScale;
             using var group   = ImRaii.Group();
             ImGui.SetNextItemWidth( _window._inputTextWidth.X - spacing - ImGui.GetFrameHeight() );
-            var       save  = ImGui.InputText( "##rootDirectory", ref _settingsNewModDirectory, 255, ImGuiInputTextFlags.EnterReturnsTrue );
+            var       save  = ImGui.InputText( "##rootDirectory", ref _newModDirectory, 255, ImGuiInputTextFlags.EnterReturnsTrue );
             using var style = ImRaii.PushStyle( ImGuiStyleVar.ItemSpacing, new Vector2( spacing, 0 ) );
             ImGui.SameLine();
             DrawDirectoryPickerButton();
@@ -121,14 +127,14 @@ public partial class ConfigWindow
             var pos = ImGui.GetCursorPosX();
             ImGui.NewLine();
 
-            if( Penumbra.Config.ModDirectory == _settingsNewModDirectory || _settingsNewModDirectory.Length == 0 )
+            if( Penumbra.Config.ModDirectory == _newModDirectory || _newModDirectory.Length == 0 )
             {
                 return;
             }
 
             if( save || DrawPressEnterWarning( Penumbra.Config.ModDirectory, pos ) )
             {
-                Penumbra.ModManager.DiscoverMods( _settingsNewModDirectory );
+                Penumbra.ModManager.DiscoverMods( _newModDirectory );
             }
         }
 
@@ -137,12 +143,13 @@ public partial class ConfigWindow
         {
             DrawOpenDirectoryButton( 0, Penumbra.ModManager.BasePath, Penumbra.ModManager.Valid );
             ImGui.SameLine();
-            if( ImGui.Button( "Rediscover Mods" ) )
+            var tt = Penumbra.ModManager.Valid
+                ? "Force Penumbra to completely re-scan your root directory as if it was restarted."
+                : "The currently selected folder is not valid. Please select a different folder.";
+            if( ImGuiUtil.DrawDisabledButton( "Rediscover Mods", Vector2.Zero, tt, !Penumbra.ModManager.Valid ) )
             {
                 Penumbra.ModManager.DiscoverMods();
             }
-
-            ImGuiUtil.HoverTooltip( "Force Penumbra to completely re-scan your root directory as if it was restarted." );
         }
 
         private void DrawEnabledBox()

Penumbra/UI/ConfigWindow.cs

@@ -21,13 +21,14 @@ public sealed partial class ConfigWindow : Window, IDisposable
     private readonly EffectiveTab          _effectiveTab;
     private readonly DebugTab              _debugTab;
     private readonly ResourceTab           _resourceTab;
+    public readonly  SubModEditWindow      SubModPopup = new();
 
     public ConfigWindow( Penumbra penumbra )
         : base( GetLabel() )
     {
         _penumbra       = penumbra;
         _settingsTab    = new SettingsTab( this );
-        _selector       = new ModFileSystemSelector( _penumbra.ModFileSystem, new HashSet< Mod2 >() ); // TODO
+        _selector       = new ModFileSystemSelector( _penumbra.ModFileSystem, new HashSet< Mod >() ); // TODO
         _modPanel       = new ModPanel( this );
         _collectionsTab = new CollectionsTab( this );
         _effectiveTab   = new EffectiveTab();
@@ -61,6 +62,7 @@ public sealed partial class ConfigWindow : Window, IDisposable
     public void Dispose()
     {
         _selector.Dispose();
+        _modPanel.Dispose();
     }
 
     private static string GetLabel()
@@ -70,10 +72,12 @@ public sealed partial class ConfigWindow : Window, IDisposable
 
     private Vector2 _defaultSpace;
     private Vector2 _inputTextWidth;
+    private Vector2 _iconButtonSize;
 
     private void SetupSizes()
     {
         _defaultSpace   = new Vector2( 0, 10 * ImGuiHelpers.GlobalScale );
         _inputTextWidth = new Vector2( 350f  * ImGuiHelpers.GlobalScale, 0 );
+        _iconButtonSize = new Vector2( ImGui.GetFrameHeight() );
     }
 }

Penumbra/UI/LaunchButton.cs

@@ -9,7 +9,7 @@ namespace Penumbra.UI;
 // using the Dalamud-provided collapsible submenu.
 public class LaunchButton : IDisposable
 {
-    private readonly ConfigWindow                          _configWindow;
+    private readonly ConfigWindow                  _configWindow;
     private readonly TextureWrap?                          _icon;
     private readonly TitleScreenMenu.TitleScreenMenuEntry? _entry;
 

Penumbra/Util/ArrayExtensions.cs

@@ -1,11 +1,15 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
+using System.Linq;
 
 namespace Penumbra.Util;
 
 public static class ArrayExtensions
 {
+    public static IEnumerable< (T, int) > WithIndex< T >( this IEnumerable< T > list )
+        => list.Select( ( x, i ) => ( x, i ) );
+
     public static int IndexOf< T >( this IReadOnlyList< T > array, Predicate< T > predicate )
     {
         for( var i = 0; i < array.Count; ++i )
@@ -61,35 +65,4 @@ public static class ArrayExtensions
         result = default;
         return false;
     }
-
-    public static bool Move< T >( this IList< T > list, int idx1, int idx2 )
-    {
-        idx1 = Math.Clamp( idx1, 0, list.Count - 1 );
-        idx2 = Math.Clamp( idx2, 0, list.Count - 1 );
-        if( idx1 == idx2 )
-        {
-            return false;
-        }
-
-        var tmp = list[ idx1 ];
-        // move element down and shift other elements up
-        if( idx1 < idx2 )
-        {
-            for( var i = idx1; i < idx2; i++ )
-            {
-                list[ i ] = list[ i + 1 ];
-            }
-        }
-        // move element up and shift other elements down
-        else
-        {
-            for( var i = idx1; i > idx2; i-- )
-            {
-                list[ i ] = list[ i - 1 ];
-            }
-        }
-
-        list[ idx2 ] = tmp;
-        return true;
-    }
 }

Penumbra/Util/Backup.cs

@@ -66,12 +66,12 @@ public static class Backup
         {
             ++count;
             var time = file.CreationTimeUtc;
-            if( ( oldest?.CreationTimeUtc ?? DateTime.MinValue ) < time )
+            if( ( oldest?.CreationTimeUtc ?? DateTime.MaxValue ) > time )
             {
                 oldest = file;
             }
 
-            if( ( newest?.CreationTimeUtc ?? DateTime.MaxValue ) > time )
+            if( ( newest?.CreationTimeUtc ?? DateTime.MinValue ) < time )
             {
                 newest = file;
             }

Penumbra/Util/DialogExtensions.cs

@@ -1,81 +0,0 @@
-using System;
-using System.Diagnostics;
-using System.Drawing;
-using System.Threading;
-using System.Threading.Tasks;
-using System.Windows.Forms;
-
-namespace Penumbra.Util;
-
-public static class DialogExtensions
-{
-    public static Task< DialogResult > ShowDialogAsync( this CommonDialog form )
-    {
-        using var process = Process.GetCurrentProcess();
-        return form.ShowDialogAsync( new DialogHandle( process.MainWindowHandle ) );
-    }
-
-    public static Task< DialogResult > ShowDialogAsync( this CommonDialog form, IWin32Window owner )
-    {
-        var taskSource = new TaskCompletionSource< DialogResult >();
-        var th         = new Thread( () => DialogThread( form, owner, taskSource ) );
-        th.Start();
-        return taskSource.Task;
-    }
-
-    [STAThread]
-    private static void DialogThread( CommonDialog form, IWin32Window owner,
-        TaskCompletionSource< DialogResult > taskSource )
-    {
-        Application.SetCompatibleTextRenderingDefault( false );
-        Application.EnableVisualStyles();
-        using var hiddenForm = new HiddenForm( form, owner, taskSource );
-        Application.Run( hiddenForm );
-        Application.ExitThread();
-    }
-
-    public class DialogHandle : IWin32Window
-    {
-        public IntPtr Handle { get; set; }
-
-        public DialogHandle( IntPtr handle )
-            => Handle = handle;
-    }
-
-    public class HiddenForm : Form
-    {
-        private readonly CommonDialog                         _form;
-        private readonly IWin32Window                         _owner;
-        private readonly TaskCompletionSource< DialogResult > _taskSource;
-
-        public HiddenForm( CommonDialog form, IWin32Window owner, TaskCompletionSource< DialogResult > taskSource )
-        {
-            _form       = form;
-            _owner      = owner;
-            _taskSource = taskSource;
-
-            Opacity         = 0;
-            FormBorderStyle = FormBorderStyle.None;
-            ShowInTaskbar   = false;
-            Size            = new Size( 0, 0 );
-
-            Shown += HiddenForm_Shown;
-        }
-
-        private void HiddenForm_Shown( object? sender, EventArgs _ )
-        {
-            Hide();
-            try
-            {
-                var result = _form.ShowDialog( _owner );
-                _taskSource.SetResult( result );
-            }
-            catch( Exception e )
-            {
-                _taskSource.SetException( e );
-            }
-
-            Close();
-        }
-    }
-}

Penumbra/Util/DictionaryExtensions.cs

@@ -0,0 +1,52 @@
+using System.Collections.Generic;
+
+namespace Penumbra.Util;
+
+public static class DictionaryExtensions
+{
+    // Returns whether two dictionaries contain equal keys and values.
+    public static bool SetEquals< TKey, TValue >( this IReadOnlyDictionary< TKey, TValue > lhs, IReadOnlyDictionary< TKey, TValue > rhs )
+    {
+        if( lhs.Count != rhs.Count )
+        {
+            return false;
+        }
+
+        foreach( var (key, value) in lhs )
+        {
+            if( !rhs.TryGetValue( key, out var rhsValue ) )
+            {
+                return false;
+            }
+
+            if( value == null )
+            {
+                if( rhsValue != null )
+                {
+                    return false;
+                }
+
+                continue;
+            }
+
+            if( !value.Equals( rhsValue ) )
+            {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    // Set one dictionary to the other, deleting previous entries and ensuring capacity beforehand.
+    public static void SetTo< TKey, TValue >( this Dictionary< TKey, TValue > lhs, IReadOnlyDictionary< TKey, TValue > rhs )
+        where TKey : notnull
+    {
+        lhs.Clear();
+        lhs.EnsureCapacity( rhs.Count );
+        foreach( var (key, value) in rhs )
+        {
+            lhs.Add( key, value );
+        }
+    }
+}

Penumbra/Util/Functions.cs

@@ -1,19 +0,0 @@
-using System;
-using System.Runtime.CompilerServices;
-
-namespace Penumbra.Util;
-
-public static class Functions
-{
-    [MethodImpl( MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization )]
-    public static bool SetDifferent< T >( T oldValue, T newValue, Action< T > set ) where T : IEquatable< T >
-    {
-        if( oldValue.Equals( newValue ) )
-        {
-            return false;
-        }
-
-        set( newValue );
-        return true;
-    }
-}

Penumbra/Util/ModelChanger.cs

@@ -74,7 +74,7 @@ public static class ModelChanger
         }
     }
 
-    public static bool ChangeModMaterials( Mod2 mod, string from, string to )
+    public static bool ChangeModMaterials( Mod mod, string from, string to )
     {
         if( ValidStrings( from, to ) )
         {

Penumbra/Util/SingleOrArrayConverter.cs

@@ -1,45 +0,0 @@
-using System;
-using System.Collections.Generic;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
-
-namespace Penumbra.Util;
-
-public class SingleOrArrayConverter< T > : JsonConverter
-{
-    public override bool CanConvert( Type objectType )
-        => objectType == typeof( HashSet< T > );
-
-    public override object ReadJson( JsonReader reader, Type objectType, object? existingValue, JsonSerializer serializer )
-    {
-        var token = JToken.Load( reader );
-
-        if( token.Type == JTokenType.Array )
-        {
-            return token.ToObject< HashSet< T > >() ?? new HashSet< T >();
-        }
-
-        var tmp = token.ToObject< T >();
-        return tmp != null
-            ? new HashSet< T > { tmp }
-            : new HashSet< T >();
-    }
-
-    public override bool CanWrite
-        => true;
-
-    public override void WriteJson( JsonWriter writer, object? value, JsonSerializer serializer )
-    {
-        writer.WriteStartArray();
-        if( value != null )
-        {
-            var v = ( HashSet< T > )value;
-            foreach( var val in v )
-            {
-                serializer.Serialize( writer, val?.ToString() );
-            }
-        }
-
-        writer.WriteEndArray();
-    }
-}

Penumbra/Util/StringPathExtensions.cs

@@ -1,67 +0,0 @@
-using System.Collections.Generic;
-using System.IO;
-using System.Text;
-
-namespace Penumbra.Util;
-
-public static class StringPathExtensions
-{
-    private static readonly HashSet< char > Invalid = new(Path.GetInvalidFileNameChars());
-
-    public static string ReplaceInvalidPathSymbols( this string s, string replacement = "_" )
-    {
-        StringBuilder sb = new(s.Length);
-        foreach( var c in s )
-        {
-            if( Invalid.Contains( c ) )
-            {
-                sb.Append( replacement );
-            }
-            else
-            {
-                sb.Append( c );
-            }
-        }
-
-        return sb.ToString();
-    }
-
-    public static string RemoveInvalidPathSymbols( this string s )
-        => string.Concat( s.Split( Path.GetInvalidFileNameChars() ) );
-
-    public static string ReplaceNonAsciiSymbols( this string s, string replacement = "_" )
-    {
-        StringBuilder sb = new(s.Length);
-        foreach( var c in s )
-        {
-            if( c >= 128 )
-            {
-                sb.Append( replacement );
-            }
-            else
-            {
-                sb.Append( c );
-            }
-        }
-
-        return sb.ToString();
-    }
-
-    public static string ReplaceBadXivSymbols( this string s, string replacement = "_" )
-    {
-        StringBuilder sb = new(s.Length);
-        foreach( var c in s )
-        {
-            if( c >= 128 || Invalid.Contains( c ) )
-            {
-                sb.Append( replacement );
-            }
-            else
-            {
-                sb.Append( c );
-            }
-        }
-
-        return sb.ToString();
-    }
-}

Penumbra/Util/TempFile.cs

@@ -1,23 +0,0 @@
-using System.IO;
-
-namespace Penumbra.Util;
-
-public static class TempFile
-{
-    public static FileInfo TempFileName( DirectoryInfo baseDir, string suffix = "" )
-    {
-        const uint maxTries = 15;
-        for( var i = 0; i < maxTries; ++i )
-        {
-            var name = Path.GetRandomFileName();
-            var path = new FileInfo( Path.Combine( baseDir.FullName,
-                suffix.Length > 0 ? name[ ..name.LastIndexOf( '.' ) ] + suffix : name ) );
-            if( !path.Exists )
-            {
-                return path;
-            }
-        }
-
-        throw new IOException();
-    }
-}