FModel/FModel/ViewModels/CUE4ParseViewModel.cs

using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;

using AdonisUI.Controls;

using CUE4Parse;
using CUE4Parse.Compression;
using CUE4Parse.Encryption.Aes;
using CUE4Parse.FileProvider;
using CUE4Parse.FileProvider.Objects;
using CUE4Parse.FileProvider.Vfs;
using CUE4Parse.GameTypes.Aion2.Objects;
using CUE4Parse.GameTypes.AoC.Objects;
using CUE4Parse.GameTypes.AshEchoes.FileProvider;
using CUE4Parse.GameTypes.SMG.UE4.Assets.Exports.Wwise;
using CUE4Parse.GameTypes.KRD.Assets.Exports;
using CUE4Parse.MappingsProvider;
using CUE4Parse.UE4.AssetRegistry;
using CUE4Parse.UE4.Assets;
using CUE4Parse.UE4.Assets.Exports;
using CUE4Parse.UE4.Assets.Exports.Animation;
using CUE4Parse.UE4.Assets.Exports.CriWare;
using CUE4Parse.UE4.Assets.Exports.Fmod;
using CUE4Parse.UE4.Assets.Exports.Material;
using CUE4Parse.UE4.Assets.Exports.SkeletalMesh;
using CUE4Parse.UE4.Assets.Exports.Sound;
using CUE4Parse.UE4.Assets.Exports.StaticMesh;
using CUE4Parse.UE4.Assets.Exports.Texture;
using CUE4Parse.UE4.Assets.Exports.Verse;
using CUE4Parse.UE4.Assets.Exports.Wwise;
using CUE4Parse.UE4.BinaryConfig;
using CUE4Parse.UE4.CriWare;
using CUE4Parse.UE4.CriWare.Readers;
using CUE4Parse.UE4.FMod;
using CUE4Parse.UE4.IO;
using CUE4Parse.UE4.Localization;
using CUE4Parse.UE4.Objects.Core.Serialization;
using CUE4Parse.UE4.Objects.Engine;
using CUE4Parse.UE4.Objects.UObject;
using CUE4Parse.UE4.Objects.UObject.Editor;
using CUE4Parse.UE4.Oodle.Objects;
using CUE4Parse.UE4.Readers;
using CUE4Parse.UE4.Shaders;
using CUE4Parse.UE4.Versions;
using CUE4Parse.UE4.Wwise;
using CUE4Parse.Utils;

using CUE4Parse_Conversion;
using CUE4Parse_Conversion.Sounds;

using EpicManifestParser;
using EpicManifestParser.UE;
using EpicManifestParser.ZlibngDotNetDecompressor;

using FModel.Creator;
using FModel.Extensions;
using FModel.Framework;
using FModel.Services;
using FModel.Settings;
using FModel.Views;
using FModel.Views.Resources.Controls;
using FModel.Views.Snooper;

using Newtonsoft.Json;
using Newtonsoft.Json.Converters;

using OpenTK.Windowing.Common;
using OpenTK.Windowing.Desktop;

using Serilog;

using SkiaSharp;

using Svg.Skia;

using UE4Config.Parsing;

using Application = System.Windows.Application;
using FGuid = CUE4Parse.UE4.Objects.Core.Misc.FGuid;

namespace FModel.ViewModels;

public class CUE4ParseViewModel : ViewModel
{
    private ThreadWorkerViewModel _threadWorkerView => ApplicationService.ThreadWorkerView;
    private ApiEndpointViewModel _apiEndpointView => ApplicationService.ApiEndpointView;
    private readonly Regex _fnLiveRegex = new(@"^FortniteGame[/\\]Content[/\\]Paks[/\\]",
        RegexOptions.Compiled | RegexOptions.Singleline | RegexOptions.IgnoreCase | RegexOptions.CultureInvariant);

    private bool _modelIsOverwritingMaterial;
    public bool ModelIsOverwritingMaterial
    {
        get => _modelIsOverwritingMaterial;
        set => SetProperty(ref _modelIsOverwritingMaterial, value);
    }

    private bool _modelIsWaitingAnimation;
    public bool ModelIsWaitingAnimation
    {
        get => _modelIsWaitingAnimation;
        set => SetProperty(ref _modelIsWaitingAnimation, value);
    }

    public bool IsSnooperOpen => _snooper is { Exists: true, IsVisible: true };
    private Snooper _snooper;
    public Snooper SnooperViewer
    {
        get
        {
            if (_snooper != null) return _snooper;

            return Application.Current.Dispatcher.Invoke(delegate
            {
                var scale = ImGuiController.GetDpiScale();
                var htz = Snooper.GetMaxRefreshFrequency();
                return _snooper = new Snooper(
                    new GameWindowSettings { UpdateFrequency = htz },
                    new NativeWindowSettings
                    {
                        ClientSize = new OpenTK.Mathematics.Vector2i(
                            Convert.ToInt32(SystemParameters.MaximizedPrimaryScreenWidth * .75 * scale),
                            Convert.ToInt32(SystemParameters.MaximizedPrimaryScreenHeight * .85 * scale)),
                        NumberOfSamples = Constants.SAMPLES_COUNT,
                        WindowBorder = WindowBorder.Resizable,
                        Flags = ContextFlags.ForwardCompatible,
                        Profile = ContextProfile.Core,
                        Vsync = VSyncMode.Adaptive,
                        APIVersion = new Version(4, 6),
                        StartVisible = false,
                        StartFocused = false,
                        Title = "3D Viewer"
                    });
            });
        }
    }

    public AbstractVfsFileProvider Provider { get; }
    public GameDirectoryViewModel GameDirectory { get; }
    public AssetsFolderViewModel AssetsFolder { get; }
    public SearchViewModel SearchVm { get; }
    public SearchViewModel RefVm { get; }
    public TabControlViewModel TabControl { get; }
    public ConfigIni IoStoreOnDemand { get; }
    private Lazy<WwiseProvider> _wwiseProviderLazy;
    public WwiseProvider WwiseProvider => _wwiseProviderLazy.Value;
    private Lazy<FModProvider> _fmodProviderLazy;
    public FModProvider FmodProvider => _fmodProviderLazy?.Value;
    private Lazy<CriWareProvider> _criWareProviderLazy;
    public CriWareProvider CriWareProvider => _criWareProviderLazy?.Value;
    public ConcurrentBag<string> UnknownExtensions = [];

    public CUE4ParseViewModel()
    {
        var currentDir = UserSettings.Default.CurrentDir;
        var gameDirectory = currentDir.GameDirectory;
        var versionContainer = new VersionContainer(
            game: currentDir.UeVersion, platform: currentDir.TexturePlatform,
            customVersions: new FCustomVersionContainer(currentDir.Versioning.CustomVersions),
            optionOverrides: currentDir.Versioning.Options,
            mapStructTypesOverrides: currentDir.Versioning.MapStructTypes);
        var pathComparer = StringComparer.OrdinalIgnoreCase;

        switch (gameDirectory)
        {
            case Constants._FN_LIVE_TRIGGER:
            {
                Provider = new StreamedFileProvider("FortniteLive", versionContainer, pathComparer);
                break;
            }
            case Constants._VAL_LIVE_TRIGGER:
            {
                Provider = new StreamedFileProvider("ValorantLive", versionContainer, pathComparer);
                break;
            }
            default:
            {
                var project = gameDirectory.SubstringBeforeLast(gameDirectory.Contains("eFootball") ? "\\pak" : "\\Content").SubstringAfterLast("\\");
                Provider = project switch
                {
                    "StateOfDecay2" => new DefaultFileProvider(new DirectoryInfo(gameDirectory),
                    [
                        new(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData) + "\\StateOfDecay2\\Saved\\Paks"),
                        new(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData) + "\\StateOfDecay2\\Saved\\DisabledPaks")
                    ], SearchOption.AllDirectories, versionContainer, pathComparer),
                    "eFootball" => new DefaultFileProvider(new DirectoryInfo(gameDirectory),
                    [
                        new(Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData) + "\\KONAMI\\eFootball\\ST\\Download")
                    ], SearchOption.AllDirectories, versionContainer, pathComparer),
                    _ when versionContainer.Game is EGame.GAME_AshEchoes => new AEDefaultFileProvider(gameDirectory, SearchOption.AllDirectories, versionContainer, pathComparer),
                    _ when versionContainer.Game is EGame.GAME_BlackStigma => new DefaultFileProvider(gameDirectory, SearchOption.AllDirectories, versionContainer, StringComparer.Ordinal),
                    _ => new DefaultFileProvider(gameDirectory, SearchOption.AllDirectories, versionContainer, pathComparer)
                };

                break;
            }
        }

        Provider.ReadScriptData = UserSettings.Default.ReadScriptData;
        Provider.ReadShaderMaps = UserSettings.Default.ReadShaderMaps;
        Provider.ReadNaniteData = true;

        GameDirectory = new GameDirectoryViewModel();
        AssetsFolder = new AssetsFolderViewModel();
        SearchVm = new SearchViewModel();
        RefVm = new SearchViewModel();
        TabControl = new TabControlViewModel();
        IoStoreOnDemand = new ConfigIni(nameof(IoStoreOnDemand));
    }

    public async Task Initialize()
    {
        await _apiEndpointView.EpicApi.VerifyAuth(CancellationToken.None);
        await _threadWorkerView.Begin(cancellationToken =>
        {
            Provider.OnDemandOptions = new IoStoreOnDemandOptions
            {
                ChunkHostUri = new Uri("https://download.epicgames.com/", UriKind.Absolute),
                ChunkCacheDirectory = Directory.CreateDirectory(Path.Combine(UserSettings.Default.OutputDirectory, ".data")),
                Authorization = new AuthenticationHeaderValue("Bearer", UserSettings.Default.LastAuthResponse.AccessToken),
                Timeout = TimeSpan.FromSeconds(30)
            };

            switch (Provider)
            {
                case StreamedFileProvider p:
                    switch (p.LiveGame)
                    {
                        case "FortniteLive":
                        {
                            var manifestInfo = _apiEndpointView.EpicApi.GetManifest(cancellationToken);
                            if (manifestInfo is null)
                            {
                                throw new FileLoadException("Could not load latest Fortnite manifest, you may have to switch to your local installation.");
                            }

                            var cacheDir = Directory.CreateDirectory(Path.Combine(UserSettings.Default.OutputDirectory, ".data")).FullName;
                            var manifestOptions = new ManifestParseOptions
                            {
                                ChunkCacheDirectory = cacheDir,
                                ManifestCacheDirectory = cacheDir,
                                ChunkBaseUrl = "http://download.epicgames.com/Builds/Fortnite/CloudDir/",
                                Decompressor = ManifestZlibngDotNetDecompressor.Decompress,
                                DecompressorState = ZlibHelper.Instance,
                                CacheChunksAsIs = false
                            };

                            var startTs = Stopwatch.GetTimestamp();
                            FBuildPatchAppManifest manifest;

                            try
                            {
                                (manifest, _) = manifestInfo.DownloadAndParseAsync(manifestOptions,
                                    cancellationToken: cancellationToken,
                                    elementManifestPredicate: static x => x.Uri.Host == "download.epicgames.com"
                                ).GetAwaiter().GetResult();
                            }
                            catch (HttpRequestException ex)
                            {
                                Log.Error("Failed to download manifest ({ManifestUri})", ex.Data["ManifestUri"]?.ToString() ?? "");
                                throw;
                            }

                            if (manifest.TryFindFile("Cloud/IoStoreOnDemand.ini", out var ioStoreOnDemandFile))
                            {
                                IoStoreOnDemand.Read(new StreamReader(ioStoreOnDemandFile.GetStream()));
                            }

                            Parallel.ForEach(manifest.Files.Where(x => _fnLiveRegex.IsMatch(x.FileName)), fileManifest =>
                            {
                                p.RegisterVfs(fileManifest.FileName, [fileManifest.GetStream()],
                                    it => new FRandomAccessStreamArchive(it, manifest.FindFile(it)!.GetStream(), p.Versions));
                            });

                            var elapsedTime = Stopwatch.GetElapsedTime(startTs);
                            FLogger.Append(ELog.Information, () =>
                                FLogger.Text($"Fortnite [LIVE] has been loaded successfully in {elapsedTime.TotalMilliseconds:F1}ms", Constants.WHITE, true));
                            break;
                        }
                        case "ValorantLive":
                        {
                            var manifest = _apiEndpointView.ValorantApi.GetManifest(cancellationToken);
                            if (manifest == null)
                            {
                                throw new Exception("Could not load latest Valorant manifest, you may have to switch to your local installation.");
                            }

                            Parallel.ForEach(manifest.Paks, pak =>
                            {
                                p.RegisterVfs(pak.GetFullName(), [pak.GetStream(manifest)]);
                            });

                            FLogger.Append(ELog.Information, () =>
                                FLogger.Text($"Valorant '{manifest.Header.GameVersion}' has been loaded successfully", Constants.WHITE, true));
                            break;
                        }
                    }

                    break;
                case DefaultFileProvider:
                {
                    var ioStoreOnDemandPath = Path.Combine(UserSettings.Default.GameDirectory, "..\\..\\..\\Cloud\\IoStoreOnDemand.ini");
                    if (File.Exists(ioStoreOnDemandPath))
                    {
                        using var s = new StreamReader(ioStoreOnDemandPath);
                        IoStoreOnDemand.Read(s);
                    }
                    break;
                }
            }

            Provider.Initialize();
            _wwiseProviderLazy = new Lazy<WwiseProvider>(() => new WwiseProvider(Provider, UserSettings.Default.GameDirectory, UserSettings.Default.WwiseMaxBnkPrefetch));
            _fmodProviderLazy = new Lazy<FModProvider>(() => new FModProvider(Provider, UserSettings.Default.GameDirectory));
            _criWareProviderLazy = new Lazy<CriWareProvider>(() => new CriWareProvider(Provider, UserSettings.Default.GameDirectory));
            Log.Information($"{Provider.Versions.Game} ({Provider.Versions.Platform}) | Archives: x{Provider.UnloadedVfs.Count} | AES: x{Provider.RequiredKeys.Count} | Loose Files: x{Provider.Files.Count}");
        });
    }

    /// <summary>
    /// load virtual files system from GameDirectory
    /// </summary>
    /// <returns></returns>
    public void LoadVfs(IEnumerable<KeyValuePair<FGuid, FAesKey>> aesKeys)
    {
        Provider.SubmitKeys(aesKeys);
        Provider.PostMount();

        var aesMax = Provider.RequiredKeys.Count + Provider.Keys.Count;
        var archiveMax = Provider.UnloadedVfs.Count + Provider.MountedVfs.Count;
        Log.Information($"Project: {Provider.ProjectName} | Mounted: {Provider.MountedVfs.Count}/{archiveMax} | AES: {Provider.Keys.Count}/{aesMax} | Files: x{Provider.Files.Count}");
    }

    public void ClearProvider()
    {
        if (Provider == null) return;

        AssetsFolder.Folders.Clear();
        SearchVm.SearchResults.Clear();
        Helper.CloseWindow<AdonisWindow>("Search For Packages");
        Provider.UnloadNonStreamedVfs();
        GC.Collect();
    }

    public async Task RefreshAes()
    {
        // game directory dependent, we don't have the provider game name yet since we don't have aes keys
        // except when this comes from the AES Manager
        if (!UserSettings.IsEndpointValid(EEndpointType.Aes, out var endpoint))
            return;

        await _threadWorkerView.Begin(cancellationToken =>
        {
            // deprecated values
            if (endpoint.Url == "https://fortnitecentral.genxgames.gg/api/v1/aes") endpoint.Url = "https://uedb.dev/svc/api/v1/fortnite/aes";

            var aes = _apiEndpointView.DynamicApi.GetAesKeys(cancellationToken, endpoint.Url, endpoint.Path);
            if (aes is not { IsValid: true }) return;

            UserSettings.Default.CurrentDir.AesKeys = aes;
        });
    }

    public async Task InitInformation()
    {
        await _threadWorkerView.Begin(cancellationToken =>
        {
            var info = _apiEndpointView.FModelApi.GetNews(cancellationToken, Provider.ProjectName);
            if (info == null) return;

            FLogger.Append(ELog.None, () =>
            {
                for (var i = 0; i < info.Messages.Length; i++)
                {
                    FLogger.Text(info.Messages[i], info.Colors[i], bool.Parse(info.NewLines[i]));
                }
            });
        });
    }

    public Task InitMappings(bool force = false)
    {
        if (!UserSettings.IsEndpointValid(EEndpointType.Mapping, out var endpoint))
        {
            Provider.MappingsContainer = null;
            return Task.CompletedTask;
        }

        return Task.Run(() =>
        {
            var l = ELog.Information;
            if (endpoint.Overwrite && File.Exists(endpoint.FilePath))
            {
                Provider.MappingsContainer = new FileUsmapTypeMappingsProvider(endpoint.FilePath);
            }
            else if (endpoint.IsValid)
            {
                // deprecated values
                if (endpoint.Path == "$.[?(@.meta.compressionMethod=='Oodle')].['url','fileName']") endpoint.Path = "$.[0].['url','fileName']";
                if (endpoint.Url == "https://fortnitecentral.genxgames.gg/api/v1/mappings")
                {
                    endpoint.Url = "https://uedb.dev/svc/api/v1/fortnite/mappings";
                    endpoint.Path = "$.mappings.ZStandard";
                }

                var mappingsFolder = Path.Combine(UserSettings.Default.OutputDirectory, ".data");
                var mappings = _apiEndpointView.DynamicApi.GetMappings(CancellationToken.None, endpoint.Url, endpoint.Path);
                if (mappings is { Length: > 0 })
                {
                    foreach (var mapping in mappings)
                    {
                        if (!mapping.IsValid) continue;

                        var mappingPath = Path.Combine(mappingsFolder, mapping.FileName);
                        if (force || !File.Exists(mappingPath) || new FileInfo(mappingPath).Length == 0)
                        {
                            _apiEndpointView.DownloadFile(mapping.Url, mappingPath);
                        }

                        Provider.MappingsContainer = new FileUsmapTypeMappingsProvider(mappingPath);
                        break;
                    }
                }

                if (Provider.MappingsContainer == null)
                {
                    var latestUsmaps = new DirectoryInfo(mappingsFolder).GetFiles("*_oo.usmap");
                    if (latestUsmaps.Length <= 0) return;

                    var latestUsmapInfo = latestUsmaps.OrderBy(f => f.LastWriteTime).Last();
                    Provider.MappingsContainer = new FileUsmapTypeMappingsProvider(latestUsmapInfo.FullName);
                    l = ELog.Warning;
                }
            }

            if (Provider.MappingsContainer is FileUsmapTypeMappingsProvider m)
            {
                Log.Information($"Mappings pulled from '{m.FileName}'");
                FLogger.Append(l, () => FLogger.Text($"Mappings pulled from '{m.FileName}'", Constants.WHITE, true));
            }
        });
    }

    public Task VerifyConsoleVariables()
    {
        if (Provider.Versions["StripAdditiveRefPose"])
        {
            FLogger.Append(ELog.Warning, () =>
                FLogger.Text("Additive animations have their reference pose stripped, which will lead to inaccurate preview and export", Constants.WHITE, true));
        }

        if (Provider.Versions.Game is EGame.GAME_UE4_LATEST or EGame.GAME_UE5_LATEST && !Provider.ProjectName.Equals("FortniteGame", StringComparison.OrdinalIgnoreCase)) // ignore fortnite globally
        {
            FLogger.Append(ELog.Warning, () =>
                FLogger.Text($"Experimental UE version selected, likely unsuitable for '{Provider.GameDisplayName ?? Provider.ProjectName}'", Constants.WHITE, true));
        }

        return Task.CompletedTask;
    }

    public Task VerifyOnDemandArchives()
    {
        // only local fortnite
        if (Provider is not DefaultFileProvider || !Provider.ProjectName.Equals("FortniteGame", StringComparison.OrdinalIgnoreCase))
            return Task.CompletedTask;

        // scuffed but working
        var persistentDownloadDir = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "FortniteGame/Saved/PersistentDownloadDir");
        var iasFileInfo = new FileInfo(Path.Combine(persistentDownloadDir, "ias", "ias.cache.0"));
        if (!iasFileInfo.Exists || iasFileInfo.Length == 0)
            return Task.CompletedTask;

        return Task.Run(async () =>
        {
            var inst = new List<InstructionToken>();
            IoStoreOnDemand.FindPropertyInstructions("Endpoint", "TocPath", inst);
            if (inst.Count <= 0) return;

            var ioStoreOnDemandPath = Path.Combine(UserSettings.Default.GameDirectory, "..\\..\\..\\Cloud", inst[0].Value.SubstringAfterLast("/").SubstringBefore("\""));
            if (!File.Exists(ioStoreOnDemandPath)) return;

            await Provider.RegisterVfsAsync(new IoChunkToc(ioStoreOnDemandPath));
            var onDemandCount = await Provider.MountAsync();
            FLogger.Append(ELog.Information, () =>
                FLogger.Text($"{onDemandCount} on-demand archive{(onDemandCount > 1 ? "s" : "")} streamed via epicgames.com", Constants.WHITE, true));
        });
    }

    public int LocalizedResourcesCount { get; set; }
    public bool LocalResourcesDone { get; set; }
    public bool HotfixedResourcesDone { get; set; }

    public async Task LoadLocalizedResources()
    {
        var snapshot = LocalizedResourcesCount;
        await Task.WhenAll(LoadGameLocalizedResources(), LoadHotfixedLocalizedResources()).ConfigureAwait(false);

        LocalizedResourcesCount = Provider.Internationalization.Count;
        if (snapshot != LocalizedResourcesCount)
        {
            FLogger.Append(ELog.Information, () =>
                FLogger.Text($"{LocalizedResourcesCount} localized resources loaded for '{UserSettings.Default.AssetLanguage.GetDescription()}'", Constants.WHITE, true));
            Utils.Typefaces = new Typefaces(this);
        }
    }

    private Task LoadGameLocalizedResources()
    {
        if (LocalResourcesDone) return Task.CompletedTask;
        return Task.Run(() =>
        {
            LocalResourcesDone = Provider.TryChangeCulture(Provider.GetLanguageCode(UserSettings.Default.AssetLanguage));
        });
    }

    private Task LoadHotfixedLocalizedResources()
    {
        if (!Provider.ProjectName.Equals("fortnitegame", StringComparison.OrdinalIgnoreCase) || HotfixedResourcesDone) return Task.CompletedTask;
        return Task.Run(() =>
        {
            var hotfixes = ApplicationService.ApiEndpointView.CentralApi.GetHotfixes(CancellationToken.None, Provider.GetLanguageCode(UserSettings.Default.AssetLanguage));
            if (hotfixes == null) return;

            Provider.Internationalization.Override(hotfixes);
            HotfixedResourcesDone = true;
        });
    }

    private int _virtualPathCount { get; set; }
    public Task LoadVirtualPaths()
    {
        if (_virtualPathCount > 0) return Task.CompletedTask;
        return Task.Run(() =>
        {
            _virtualPathCount = Provider.LoadVirtualPaths(UserSettings.Default.CurrentDir.UeVersion.GetVersion());
            if (_virtualPathCount > 0)
            {
                FLogger.Append(ELog.Information, () =>
                    FLogger.Text($"{_virtualPathCount} virtual paths loaded", Constants.WHITE, true));
            }
            else
            {
                FLogger.Append(ELog.Warning, () =>
                    FLogger.Text("Could not load virtual paths, plugin manifest may not exist", Constants.WHITE, true));
            }
        });
    }

    public void ExtractSelected(CancellationToken cancellationToken, IEnumerable<GameFile> assetItems)
    {
        foreach (var entry in assetItems)
        {
            Thread.Yield();
            cancellationToken.ThrowIfCancellationRequested();
            Extract(cancellationToken, entry, TabControl.HasNoTabs);
        }
    }

    private void BulkFolder(CancellationToken cancellationToken, TreeItem folder, Action<GameFile> action)
    {
        foreach (var entry in folder.AssetsList.Assets)
        {
            Thread.Yield();
            cancellationToken.ThrowIfCancellationRequested();
            try
            {
                action(entry.Asset);
            }
            catch
            {
                // ignore
            }
        }

        foreach (var f in folder.Folders) BulkFolder(cancellationToken, f, action);
    }

    public void ExportFolder(CancellationToken cancellationToken, TreeItem folder)
    {
        Parallel.ForEach(folder.AssetsList.Assets, entry =>
        {
            cancellationToken.ThrowIfCancellationRequested();
            ExportData(entry.Asset, false);
        });

        foreach (var f in folder.Folders) ExportFolder(cancellationToken, f);
    }

    public void ExtractFolder(CancellationToken cancellationToken, TreeItem folder)
        => BulkFolder(cancellationToken, folder, asset => Extract(cancellationToken, asset, TabControl.HasNoTabs));

    public void SaveFolder(CancellationToken cancellationToken, TreeItem folder)
        => BulkFolder(cancellationToken, folder, asset => Extract(cancellationToken, asset, TabControl.HasNoTabs, EBulkType.Properties | EBulkType.Auto));

    public void TextureFolder(CancellationToken cancellationToken, TreeItem folder)
        => BulkFolder(cancellationToken, folder, asset => Extract(cancellationToken, asset, TabControl.HasNoTabs, EBulkType.Textures | EBulkType.Auto));

    public void ModelFolder(CancellationToken cancellationToken, TreeItem folder)
        => BulkFolder(cancellationToken, folder, asset => Extract(cancellationToken, asset, TabControl.HasNoTabs, EBulkType.Meshes | EBulkType.Auto));

    public void AnimationFolder(CancellationToken cancellationToken, TreeItem folder)
        => BulkFolder(cancellationToken, folder, asset => Extract(cancellationToken, asset, TabControl.HasNoTabs, EBulkType.Animations | EBulkType.Auto));

    public void AudioFolder(CancellationToken cancellationToken, TreeItem folder)
        => BulkFolder(cancellationToken, folder, asset => Extract(cancellationToken, asset, TabControl.HasNoTabs, EBulkType.Audio | EBulkType.Auto));

    public void Extract(CancellationToken cancellationToken, GameFile entry, bool addNewTab = false, EBulkType bulk = EBulkType.None)
    {
        ApplicationService.ApplicationView.IsAssetsExplorerVisible = false;
        Log.Information("User DOUBLE-CLICKED to extract '{FullPath}'", entry.Path);

        if (addNewTab && TabControl.CanAddTabs) TabControl.AddTab(entry);
        else TabControl.SelectedTab.SoftReset(entry);
        TabControl.SelectedTab.Highlighter = AvalonExtensions.HighlighterSelector(entry.Extension);

        var updateUi = !HasFlag(bulk, EBulkType.Auto);
        var saveProperties = HasFlag(bulk, EBulkType.Properties);
        var saveTextures = HasFlag(bulk, EBulkType.Textures);
        var saveAudio = HasFlag(bulk, EBulkType.Audio);
        switch (entry.Extension)
        {
            case "uasset":
            case "umap":
            {
                var result = Provider.GetLoadPackageResult(entry);
                TabControl.SelectedTab.TitleExtra = result.TabTitleExtra;

                if (saveProperties || updateUi)
                {
                    TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(result.GetDisplayData(saveProperties), Formatting.Indented), saveProperties, updateUi);
                    if (saveProperties) break; // do not search for viewable exports if we are dealing with jsons
                }

                for (var i = result.InclusiveStart; i < result.ExclusiveEnd; i++)
                {
                    if (CheckExport(cancellationToken, result.Package, i, bulk))
                        break;
                }

                break;
            }
            case "ini" when entry.Name.Contains("BinaryConfig"):
            {
                var ar = entry.CreateReader();
                var configCache = new FConfigCacheIni(ar);

                TabControl.SelectedTab.Highlighter = AvalonExtensions.HighlighterSelector("json");
                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(configCache, Formatting.Indented), saveProperties, updateUi);

                break;
            }
            case "dat" when Provider.Versions.Game is EGame.GAME_Aion2:
            {
                ProcessAion2DatFile(entry, updateUi, saveProperties);
                break;
            }
            case "dbc" when Provider.Versions.Game is EGame.GAME_AshesOfCreation:
            {
                ProcessCacheDBFile(entry, updateUi, saveProperties);
                break;
            }
            case "upluginmanifest":
            case "code-workspace":
            case "projectstore":
            case "uefnproject":
            case "uproject":
            case "manifest":
            case "uplugin":
            case "archive":
            case "dnearchive": // Banishers: Ghosts of New Eden
            case "gitignore":
            case "LICENSE":
            case "playstats": // Dispatch
            case "template":
            case "stUMeta": // LIS: Double Exposure
            case "vmodule":
            case "glslfx":
            case "cptake":
            case "uparam": // Steel Hunters
            case "spi1d":
            case "verse":
            case "html":
            case "json5":
            case "json":
            case "uref":
            case "cube":
            case "usda":
            case "ocio":
            case "data" when Provider.ProjectName is "OakGame":
            case "scss":
            case "ini":
            case "txt":
            case "log":
            case "lsd": // Days Gone
            case "bat":
            case "dat":
            case "cfg":
            case "ddr":
            case "ide":
            case "ipl":
            case "zon":
            case "xml":
            case "css":
            case "csv":
            case "pem":
            case "tsv":
            case "tps":
            case "tgc": // State of Decay 2
            case "cpp":
            case "apx":
            case "udn":
            case "doc":
            case "lua":
            case "vdf":
            case "yml":
            case "js":
            case "po":
            case "md":
            case "h":
            // Uncharted Waters Origin
            case "crn":
            case "uwt":
            case "wvh":
            case "bf":
            case "bl":
            case "bm":
            case "br":
            {
                var data = Provider.SaveAsset(entry);
                using var stream = new MemoryStream(data) { Position = 0 };
                using var reader = new StreamReader(stream);

                TabControl.SelectedTab.SetDocumentText(reader.ReadToEnd(), saveProperties, updateUi);

                break;
            }
            case "locmeta":
            {
                var archive = entry.CreateReader();
                var metadata = new FTextLocalizationMetaDataResource(archive);
                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(metadata, Formatting.Indented), saveProperties, updateUi);

                break;
            }
            case "locres":
            {
                var archive = entry.CreateReader();
                var locres = new FTextLocalizationResource(archive);
                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(locres, Formatting.Indented), saveProperties, updateUi);

                break;
            }
            case "bin" when entry.Name.Contains("AssetRegistry", StringComparison.OrdinalIgnoreCase):
            {
                var archive = entry.CreateReader();
                var registry = new FAssetRegistryState(archive);
                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(registry, Formatting.Indented), saveProperties, updateUi);

                break;
            }
            case "bin" when entry.Name.Contains("GlobalShaderCache", StringComparison.OrdinalIgnoreCase):
            {
                var archive = entry.CreateReader();
                var registry = new FGlobalShaderCache(archive);
                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(registry, Formatting.Indented), saveProperties, updateUi);

                break;
            }
            case "bank":
            {
                var archive = entry.CreateReader();
                if (!FModProvider.TryLoadBank(archive, entry.NameWithoutExtension, out var fmodReader))
                {
                    Log.Error($"Failed to load FMOD bank {entry.Path}");
                    break;
                }

                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(fmodReader, Formatting.Indented, converters: [new FmodSoundBankConverter(), new StringEnumConverter()]), saveProperties, updateUi);

                var extractedSounds = FmodProvider.ExtractBankSounds(fmodReader);
                var directory = Path.GetDirectoryName(entry.Path) ?? "/FMOD/Desktop/";
                foreach (var sound in extractedSounds)
                {
                    SaveAndPlaySound(Path.Combine(directory, sound.Name), sound.Extension, sound.Data, saveAudio);
                }

                break;
            }
            case "bnk":
            case "pck":
            {
                var archive = entry.CreateReader();
                var wwise = new WwiseReader(archive);
                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(wwise, Formatting.Indented), saveProperties, updateUi);

                var medias = WwiseProvider.ExtractBankSounds(wwise);
                foreach (var media in medias)
                {
                    SaveAndPlaySound(media.OutputPath, media.Extension, media.Data, saveAudio);
                }

                break;
            }
            case "awb":
            {
                var archive = entry.CreateReader();
                var awbReader = new AwbReader(archive);

                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(awbReader, Formatting.Indented), saveProperties, updateUi);

                var directory = Path.GetDirectoryName(archive.Name) ?? "/Criware/";
                var extractedSounds = CriWareProvider.ExtractCriWareSounds(awbReader, archive.Name);
                foreach (var sound in extractedSounds)
                {
                    SaveAndPlaySound(Path.Combine(directory, sound.Name), sound.Extension, sound.Data, saveAudio);
                }

                break;
            }
            case "acb":
            {
                var archive = entry.CreateReader();
                var acbReader = new AcbReader(archive);

                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(acbReader, Formatting.Indented), saveProperties, updateUi);

                var directory = Path.GetDirectoryName(archive.Name) ?? "/Criware/";
                var extractedSounds = CriWareProvider.ExtractCriWareSounds(acbReader, archive.Name);
                foreach (var sound in extractedSounds)
                {
                    SaveAndPlaySound(Path.Combine(directory, sound.Name), sound.Extension, sound.Data, saveAudio);
                }

                break;
            }
            case "xvag":
            case "flac":
            case "at9":
            case "wem":
            case "wav":
            case "WAV":
            case "ogg":
                // todo: CSCore.MediaFoundation.MediaFoundationException The byte stream type of the given URL is unsupported. case "aif":
            {
                var data = Provider.SaveAsset(entry);
                SaveAndPlaySound(entry.PathWithoutExtension, entry.Extension, data, saveAudio);

                break;
            }
            case "udic":
            {
                var archive = entry.CreateReader();
                var header = new FOodleDictionaryArchive(archive).Header;
                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(header, Formatting.Indented), saveProperties, updateUi);

                break;
            }
            case "png":
            case "jpg":
            case "bmp":
            {
                var data = Provider.SaveAsset(entry);
                using var stream = new MemoryStream(data) { Position = 0 };
                TabControl.SelectedTab.AddImage(entry.NameWithoutExtension, false, SKBitmap.Decode(stream), saveTextures, updateUi);

                break;
            }
            case "svg":
            {
                var data = Provider.SaveAsset(entry);
                using var stream = new MemoryStream(data) { Position = 0 };
                var svg = new SKSvg();
                svg.Load(stream);

                int size = 512;
                var bitmap = new SKBitmap(size, size);
                using var canvas = new SKCanvas(bitmap);
                canvas.Clear(SKColors.Transparent);

                if (svg.Picture == null)
                    break;

                var bounds = svg.Picture.CullRect;
                float scale = Math.Min(size / bounds.Width, size / bounds.Height);
                canvas.Scale(scale);
                canvas.Translate(-bounds.Left, -bounds.Top);
                canvas.DrawPicture(svg.Picture);

                TabControl.SelectedTab.AddImage(entry.NameWithoutExtension, false, bitmap, saveTextures, updateUi);

                break;
            }
            case "ufont":
            case "otf":
            case "ttf":
                FLogger.Append(ELog.Warning, () =>
                    FLogger.Text($"Export '{entry.Name}' raw data and change its extension if you want it to be an installable font file", Constants.WHITE, true));
                break;
            case "ushaderbytecode":
            case "ushadercode":
            {
                var archive = entry.CreateReader();
                var ar = new FShaderCodeArchive(archive);
                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(ar, Formatting.Indented), saveProperties, updateUi);

                break;
            }
            case "upipelinecache":
            {
                var archive = entry.CreateReader();
                var ar = new FPipelineCacheFile(archive);
                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(ar, Formatting.Indented), saveProperties, updateUi);

                break;
            }
            case "stinfo":
            {
                var archive = entry.CreateReader();
                var ar = new FShaderTypeHashes(archive);
                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(ar, Formatting.Indented), saveProperties, updateUi);

                break;
            }
            case "res": // just skip
            case "luac": // compiled lua
            case "bytes": // wuthering waves
                break;
            default:
            {
                Log.Warning($"The package '{entry.Name}' is of an unknown type.");
                if (!UnknownExtensions.Contains(entry.Extension))
                {
                    UnknownExtensions.Add(entry.Extension);
                FLogger.Append(ELog.Warning, () =>
                        FLogger.Text($"There are some packages with an unknown type {entry.Extension}. Check Log file for a full list.", Constants.WHITE, true));
                }
                break;
            }
        }

        void ProcessAion2DatFile(GameFile entry, bool updateUi, bool saveProperties)
        {
            TabControl.SelectedTab.Highlighter = AvalonExtensions.HighlighterSelector("json");
            if (entry.NameWithoutExtension.EndsWith("_MapEvent"))
            {
                var data = Provider.SaveAsset(entry);
                FAion2DatFileArchive.DecryptData(data);
                using var stream = new MemoryStream(data) { Position = 0 };
                using var reader = new StreamReader(stream);

                TabControl.SelectedTab.SetDocumentText(reader.ReadToEnd(), saveProperties, updateUi);
            }
            else if (entry.NameWithoutExtension.Equals("L10NString"))
            {
                var l10nData = new FAion2L10NFile(entry);
                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(l10nData, Formatting.Indented), saveProperties, updateUi);
            }
            else
            {
                FAion2DataFile datfile = entry.NameWithoutExtension switch
                {
                    "MapDataHierarchy" => new FAion2MapHierarchyFile(entry),
                    "MapData" => new FAion2MapDataFile(entry, Provider),
                    _ when entry.Directory.EndsWith("Data/WorldMap", StringComparison.OrdinalIgnoreCase) => new FAion2MapDataFile(entry, Provider),
                    _ => new FAion2DataTableFile(entry, Provider)
                };

                TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(datfile, Formatting.Indented), saveProperties, updateUi);
            }
        }

        // Ashhes of Creation
        void ProcessCacheDBFile(GameFile entry, bool updateUi, bool saveProperties)
        {
            var data = entry.Read();
            var dbc = new FAoCDBCReader(data, Provider.MappingsForGame, Provider.Versions);
            for (var i = 0; i < dbc.Chunks.Length; i++)
            {
                if (!dbc.TryReadChunk(i, out var category, out var files))
                {
                    Log.Warning("Couldn't read {i} chuck in AoC CacheDB", i);
                    continue;
                }
                var fileName = Path.ChangeExtension(category, ".json");
                var directory = Path.Combine(UserSettings.Default.PropertiesDirectory,
                    UserSettings.Default.KeepDirectoryStructure ? entry.Directory : "", entry.Name, fileName).Replace('\\', '/');

                Directory.CreateDirectory(directory.SubstringBeforeLast('/'));

                File.WriteAllText(directory, JsonConvert.SerializeObject(files, Formatting.Indented));
            }

            TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(dbc, Formatting.Indented), saveProperties, updateUi);
        }
    }

    public void ExtractAndScroll(CancellationToken cancellationToken, string fullPath, string objectName, string parentExportType)
    {
        Log.Information("User CTRL-CLICKED to extract '{FullPath}'", fullPath);

        var entry = Provider[fullPath];
        TabControl.AddTab(entry, parentExportType);
        TabControl.SelectedTab.ScrollTrigger = objectName;

        var result = Provider.GetLoadPackageResult(entry, objectName);

        TabControl.SelectedTab.TitleExtra = result.TabTitleExtra;
        TabControl.SelectedTab.Highlighter = AvalonExtensions.HighlighterSelector(""); // json
        TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(result.GetDisplayData(), Formatting.Indented), false, false);

        for (var i = result.InclusiveStart; i < result.ExclusiveEnd; i++)
        {
            if (CheckExport(cancellationToken, result.Package, i))
                break;
        }
    }

    private bool CheckExport(CancellationToken cancellationToken, IPackage pkg, int index, EBulkType bulk = EBulkType.None) // return true once you want to stop searching for exports
    {
        var isNone = bulk == EBulkType.None;
        var updateUi = !HasFlag(bulk, EBulkType.Auto);
        var saveTextures = HasFlag(bulk, EBulkType.Textures);
        var saveAudio = HasFlag(bulk, EBulkType.Audio);

        var pointer = new FPackageIndex(pkg, index + 1).ResolvedObject;
        if (pointer?.Object is null) return false;

        var dummy = ((AbstractUePackage) pkg).ConstructObject(pointer.Class?.Object?.Value as UStruct, pkg);
        switch (dummy)
        {
            case UVerseDigest when isNone && pointer.Object.Value is UVerseDigest verseDigest:
            {
                if (!TabControl.CanAddTabs) return false;

                TabControl.AddTab($"{verseDigest.ProjectName}.verse");
                TabControl.SelectedTab.Highlighter = AvalonExtensions.HighlighterSelector("verse");
                TabControl.SelectedTab.SetDocumentText(verseDigest.ReadableCode, false, false);
                return true;
            }
            case UTexture when (isNone || saveTextures) && pointer.Object.Value is UTexture texture:
            {
                TabControl.SelectedTab.AddImage(texture, saveTextures, updateUi);
                return false;
            }
            case USvgAsset when (isNone || saveTextures) && pointer.Object.Value is USvgAsset svgasset:
            {
                const int size = 512;
                var data = svgasset.GetOrDefault<byte[]>("SvgData");
                var sourceFile = svgasset.GetOrDefault<string>("SourceFile");
                using var stream = new MemoryStream(data) { Position = 0 };

                var svg = new SKSvg();
                svg.Load(stream);

                if (svg.Picture == null)
                    return false;

                var b = svg.Picture.CullRect;
                float s = Math.Min(size / b.Width, size / b.Height);

                var bitmap = new SKBitmap(size, size);
                using var canvas = new SKCanvas(bitmap);
                using var paint = new SKPaint { IsAntialias = true, FilterQuality = SKFilterQuality.Medium };

                canvas.Scale(s);
                canvas.Translate(-b.Left, -b.Top);
                canvas.DrawPicture(svg.Picture, paint);

                if (saveTextures)
                {
                    var fileName = sourceFile.SubstringAfterLast('/');
                    var path = Path.Combine(UserSettings.Default.TextureDirectory,
                        UserSettings.Default.KeepDirectoryStructure ? TabControl.SelectedTab.Entry.Directory : "", fileName!).Replace('\\', '/');

                    Directory.CreateDirectory(path.SubstringBeforeLast('/'));

                    using var fs = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.Read);
                    fs.Write(data, 0, data.Length);
                    if (File.Exists(path))
                    {
                        Log.Information("{FileName} successfully saved", fileName);
                        if (updateUi)
                        {
                            FLogger.Append(ELog.Information, () =>
                            {
                                FLogger.Text("Successfully saved ", Constants.WHITE);
                                FLogger.Link(fileName, path, true);
                            });
                        }
                    }
                    else
                    {
                        Log.Error("{FileName} could not be saved", fileName);
                        if (updateUi)
                            FLogger.Append(ELog.Error, () => FLogger.Text($"Could not save '{fileName}'", Constants.WHITE, true));
                    }
                }

                TabControl.SelectedTab.AddImage(sourceFile.SubstringAfterLast('/'), false, bitmap, false, updateUi);
                return false;
            }
            // Supermassive Games (for example - The Dark Pictures Anthology: House of Ashes etc.)
            case UExternalSource when (isNone || saveAudio) && pointer.Object.Value is UExternalSource externalSource:
            {
                var audioName = Path.GetFileNameWithoutExtension(externalSource.ExternalSourcePath);
                SaveAndPlaySound(audioName, "wem", externalSource.Data?.WemFile ?? [], saveAudio);
                return false;
            }
            case UAkAudioEvent when (isNone || saveAudio) && pointer.Object.Value is UAkAudioEvent audioEvent:
            {
                var extractedSounds = WwiseProvider.ExtractAudioEventSounds(audioEvent);
                foreach (var sound in extractedSounds)
                {
                    SaveAndPlaySound(sound.OutputPath, sound.Extension, sound.Data, saveAudio);
                }
                return false;
            }
            case UFMODEvent when (isNone || saveAudio) && pointer.Object.Value is UFMODEvent fmodEvent:
            {
                var extractedSounds = FmodProvider.ExtractEventSounds(fmodEvent);
                var directory = Path.GetDirectoryName(fmodEvent.Owner?.Name) ?? "/FMOD/Desktop/";
                foreach (var sound in extractedSounds)
                {
                    SaveAndPlaySound(Path.Combine(directory, sound.Name), sound.Extension, sound.Data, saveAudio);
                }
                return false;
            }
            case UFMODBank when (isNone || saveAudio) && pointer.Object.Value is UFMODBank fmodBank:
            {
                var extractedSounds = FmodProvider.ExtractBankSounds(fmodBank);
                var directory = Path.GetDirectoryName(fmodBank.Owner?.Name) ?? "/FMOD/Desktop/";
                foreach (var sound in extractedSounds)
                {
                    SaveAndPlaySound(Path.Combine(directory, sound.Name), sound.Extension, sound.Data, saveAudio);
                }
                return false;
            }
            case USoundAtomCueSheet or UAtomCueSheet or USoundAtomCue or UAtomWaveBank when (isNone || saveAudio) && pointer.Object.Value is UObject atomObject:
            {
                var extractedSounds = atomObject switch
                {
                    USoundAtomCueSheet cueSheet => CriWareProvider.ExtractCriWareSounds(cueSheet),
                    UAtomCueSheet cueSheet => CriWareProvider.ExtractCriWareSounds(cueSheet),
                    USoundAtomCue cue => CriWareProvider.ExtractCriWareSounds(cue),
                    UAtomWaveBank awb => CriWareProvider.ExtractCriWareSounds(awb),
                    _ => []
                };

                var directory = Path.GetDirectoryName(atomObject.Owner?.Name) ?? "/Criware/";
                directory = Path.GetDirectoryName(atomObject.Owner.Provider.FixPath(directory));
                foreach (var sound in extractedSounds)
                {
                    SaveAndPlaySound(Path.Combine(directory, sound.Name).Replace("\\", "/"), sound.Extension, sound.Data, saveAudio);
                }
                return false;
            }
            case UAkMediaAssetData when isNone || saveAudio:
            case USoundWave when isNone || saveAudio:
            {
                // If UAkMediaAsset exists in the same package it should be used to handle the audio instead (because it contains actual audio name)
                if (pointer.Object.Value is UAkMediaAssetData dataObj && dataObj.Outer is UAkMediaAsset)
                    return false;

                var shouldDecompress = UserSettings.Default.CompressedAudioMode == ECompressedAudio.PlayDecompressed;
                pointer.Object.Value.Decode(shouldDecompress, out var audioFormat, out var data);
                var hasAf = !string.IsNullOrEmpty(audioFormat);
                if (data == null || !hasAf)
                {
                    if (hasAf) FLogger.Append(ELog.Warning, () => FLogger.Text($"Unsupported audio format '{audioFormat}'", Constants.WHITE, true));
                    return false;
                }

                SaveAndPlaySound(TabControl.SelectedTab.Entry.PathWithoutExtension.Replace('\\', '/'), audioFormat, data, saveAudio);
                return false;
            }
            case UAkMediaAsset when (isNone || saveAudio) && pointer.Object.Value is UAkMediaAsset akMediaAsset:
            {
                var audioName = akMediaAsset.MediaName;
                if (akMediaAsset.CurrentMediaAssetData?.TryLoad<UAkMediaAssetData>(out var akMediaAssetData) is true)
                {
                    var shouldDecompress = UserSettings.Default.CompressedAudioMode is ECompressedAudio.PlayDecompressed;
                    akMediaAssetData.Decode(shouldDecompress, out var audioFormat, out var data);

                    SaveAndPlaySound(audioName, audioFormat, data, saveAudio);
                }
                return false;
            }
            case UAkAudioEventData when (isNone || saveAudio) && pointer.Object.Value is UAkAudioEventData akAudioEventData:
            {
                var shouldDecompress = UserSettings.Default.CompressedAudioMode is ECompressedAudio.PlayDecompressed;
                foreach (var mediaIndex in akAudioEventData.MediaList)
                {
                    if (mediaIndex.TryLoad<UAkMediaAsset>(out var akMediaAsset))
                    {
                        if (akMediaAsset.CurrentMediaAssetData?.TryLoad<UAkMediaAssetData>(out var akMediaAssetData) is true)
                        {
                            var audioName = akMediaAsset.MediaName ?? $"{akAudioEventData.Outer.Name} ({akMediaAsset.ID})";
                            akMediaAssetData.Decode(shouldDecompress, out var audioFormat, out var data);

                            SaveAndPlaySound(audioName, audioFormat, data, saveAudio);
                        }
                    }
                }
                return false;
            }
            case UWorld when isNone && UserSettings.Default.PreviewWorlds:
            case UBlueprintGeneratedClass when isNone && UserSettings.Default.PreviewWorlds && TabControl.SelectedTab.ParentExportType switch
            {
                "JunoBuildInstructionsItemDefinition" => true,
                "JunoBuildingSetAccountItemDefinition" => true,
                "JunoBuildingPropAccountItemDefinition" => true,
                _ => false
            }:
            case UPaperSprite when isNone && UserSettings.Default.PreviewMaterials:
            case UStaticMesh when isNone && UserSettings.Default.PreviewStaticMeshes:
            case USkeletalMesh when isNone && UserSettings.Default.PreviewSkeletalMeshes:
            case USkeleton when isNone && UserSettings.Default.SaveSkeletonAsMesh:
            case UMaterialInstance when isNone && UserSettings.Default.PreviewMaterials && !ModelIsOverwritingMaterial &&
                                        !(Provider.ProjectName.Equals("FortniteGame", StringComparison.OrdinalIgnoreCase) &&
                                          (pkg.Name.Contains("/MI_OfferImages/", StringComparison.OrdinalIgnoreCase) ||
                                           pkg.Name.Contains("/RenderSwitch_Materials/", StringComparison.OrdinalIgnoreCase) ||
                                           pkg.Name.Contains("/MI_BPTile/", StringComparison.OrdinalIgnoreCase))):
            {
                if (SnooperViewer.TryLoadExport(cancellationToken, dummy, pointer.Object))
                    SnooperViewer.Run();
                return true;
            }
            case UMaterialInstance when isNone && ModelIsOverwritingMaterial && pointer.Object.Value is UMaterialInstance m:
            {
                SnooperViewer.Renderer.Swap(m);
                SnooperViewer.Run();
                return true;
            }
            case UAnimSequenceBase when isNone && UserSettings.Default.PreviewAnimations || ModelIsWaitingAnimation:
            {
                // animate all animations using their specified skeleton or when we explicitly asked for a loaded model to be animated (ignoring whether we wanted to preview animations)
                SnooperViewer.Renderer.Animate(pointer.Object.Value);
                SnooperViewer.Run();
                return true;
            }
            case UStaticMesh when HasFlag(bulk, EBulkType.Meshes):
            case USkeletalMesh when HasFlag(bulk, EBulkType.Meshes):
            case USkeleton when UserSettings.Default.SaveSkeletonAsMesh && HasFlag(bulk, EBulkType.Meshes):
            // case UMaterialInstance when HasFlag(bulk, EBulkType.Materials): // read the fucking json
            case UAnimSequenceBase when HasFlag(bulk, EBulkType.Animations):
            {
                SaveExport(pointer.Object.Value, updateUi);
                return true;
            }
            default:
            {
                if (!isNone && !saveTextures) return false;

                using var cPackage = new CreatorPackage(pkg.Name, dummy.ExportType, pointer.Object, UserSettings.Default.CosmeticStyle);
                if (!cPackage.TryConstructCreator(out var creator))
                    return false;

                creator.ParseForInfo();
                TabControl.SelectedTab.AddImage(pointer.Object.Value.Name, false, creator.Draw(), saveTextures, updateUi);
                return true;

            }
        }
    }

    public void ShowMetadata(GameFile entry)
    {
        ApplicationService.ApplicationView.IsAssetsExplorerVisible = false;

        var package = Provider.LoadPackage(entry);

        if (TabControl.CanAddTabs) TabControl.AddTab(entry);
        else TabControl.SelectedTab.SoftReset(entry);

        TabControl.SelectedTab.TitleExtra = "Metadata";
        TabControl.SelectedTab.Highlighter = AvalonExtensions.HighlighterSelector("");

        TabControl.SelectedTab.SetDocumentText(JsonConvert.SerializeObject(package, Formatting.Indented), false, false);
    }

    public void FindReferences(GameFile entry)
    {
        var refs = Provider.ScanForPackageRefs(entry);
        Application.Current.Dispatcher.Invoke(delegate
        {
            var refView = Helper.GetWindow<SearchView>("Search For Packages", () => new SearchView().Show());
            refView.ChangeCollection(ESearchViewTab.RefView, refs, entry);
            refView.FocusTab(ESearchViewTab.RefView);
        });
    }


    public void Decompile(GameFile entry)
    {
        ApplicationService.ApplicationView.IsAssetsExplorerVisible = false;

        if (TabControl.CanAddTabs) TabControl.AddTab(entry);
        else TabControl.SelectedTab.SoftReset(entry);

        TabControl.SelectedTab.TitleExtra = "Decompiled";
        TabControl.SelectedTab.Highlighter = AvalonExtensions.HighlighterSelector("cpp");

        UClassCookedMetaData cookedMetaData = null;
        try
        {
            var editorPkg = Provider.LoadPackage(entry.Path.Replace(".uasset", ".o.uasset"));
            cookedMetaData = editorPkg.GetExport<UClassCookedMetaData>("CookedClassMetaData");
        }
        catch
        {
            // ignored
        }

        var cppList = new List<string>();
        var pkg = Provider.LoadPackage(entry);
        for (var i = 0; i < pkg.ExportMapLength; i++)
        {
            var pointer = new FPackageIndex(pkg, i + 1).ResolvedObject;
            if (pointer?.Object is null && pointer.Class?.Object?.Value is null)
                continue;

            var dummy = ((AbstractUePackage) pkg).ConstructObject(pointer.Class?.Object?.Value as UStruct, pkg);
            if (dummy is not UClass || pointer.Object.Value is not UClass blueprint)
                continue;

            cppList.Add(blueprint.DecompileBlueprintToPseudo(cookedMetaData));
        }

        var cpp = cppList.Count > 1 ? string.Join("\n\n", cppList) : cppList.FirstOrDefault() ?? string.Empty;
        if (entry.Path.Contains("_Verse.uasset"))
        {
            cpp = Regex.Replace(cpp, "__verse_0x[a-fA-F0-9]{8}_", ""); // UnmangleCasedName
        }
        cpp = Regex.Replace(cpp, @"CallFunc_([A-Za-z0-9_]+)_ReturnValue", "$1");


        TabControl.SelectedTab.SetDocumentText(cpp, false, false);
    }

    private void SaveAndPlaySound(string fullPath, string ext, byte[] data, bool isBulk)
    {
        if (fullPath.StartsWith('/')) fullPath = fullPath[1..];
        var savedAudioPath = Path.Combine(UserSettings.Default.AudioDirectory,
            UserSettings.Default.KeepDirectoryStructure ? fullPath : fullPath.SubstringAfterLast('/')).Replace('\\', '/') + $".{ext.ToLowerInvariant()}";

        if (isBulk)
        {
            Directory.CreateDirectory(savedAudioPath.SubstringBeforeLast('/'));
            using var stream = new FileStream(savedAudioPath, FileMode.Create, FileAccess.Write);
            using var writer = new BinaryWriter(stream);
            writer.Write(data);
            writer.Flush();
            return;
        }

        // TODO
        // since we are currently in a thread, the audio player's lifetime (memory-wise) will keep the current thread up and running until fmodel itself closes
        // the solution would be to kill the current thread at this line and then open the audio player without "Application.Current.Dispatcher.Invoke"
        // but the ThreadWorkerViewModel is an idiot and doesn't understand we want to kill the current thread inside the current thread and continue the code
        Application.Current.Dispatcher.Invoke(delegate
        {
            var audioPlayer = Helper.GetWindow<AudioPlayer>("Audio Player", () => new AudioPlayer().Show());
            audioPlayer.Load(data, savedAudioPath);
        });
    }

    private void SaveExport(UObject export, bool updateUi = true)
    {
        var toSave = new Exporter(export, UserSettings.Default.ExportOptions);
        var toSaveDirectory = new DirectoryInfo(UserSettings.Default.ModelDirectory);
        if (toSave.TryWriteToDir(toSaveDirectory, out var label, out var savedFilePath))
        {
            Log.Information("Successfully saved {FilePath}", savedFilePath);
            if (updateUi)
            {
                FLogger.Append(ELog.Information, () =>
                {
                    FLogger.Text("Successfully saved ", Constants.WHITE);
                    FLogger.Link(label, savedFilePath, true);
                });
            }
        }
        else
        {
            Log.Error("{FileName} could not be saved", export.Name);
            FLogger.Append(ELog.Error, () => FLogger.Text($"Could not save '{export.Name}'", Constants.WHITE, true));
        }
    }

    private readonly object _rawData = new ();
    public void ExportData(GameFile entry, bool updateUi = true)
    {
        if (Provider.TrySavePackage(entry, out var assets))
        {
            string path = UserSettings.Default.RawDataDirectory;
            Parallel.ForEach(assets, kvp =>
            {
                lock (_rawData)
                {
                    path = Path.Combine(UserSettings.Default.RawDataDirectory, UserSettings.Default.KeepDirectoryStructure ? kvp.Key : kvp.Key.SubstringAfterLast('/')).Replace('\\', '/');
                    Directory.CreateDirectory(path.SubstringBeforeLast('/'));
                    File.WriteAllBytes(path, kvp.Value);
                }
            });

            Log.Information("{FileName} successfully exported", entry.Name);
            if (updateUi)
            {
                FLogger.Append(ELog.Information, () =>
                {
                    FLogger.Text("Successfully exported ", Constants.WHITE);
                    FLogger.Link(entry.Name, path, true);
                });
            }
        }
        else
        {
            Log.Error("{FileName} could not be exported", entry.Name);
            if (updateUi)
                FLogger.Append(ELog.Error, () => FLogger.Text($"Could not export '{entry.Name}'", Constants.WHITE, true));
        }
    }

    private static bool HasFlag(EBulkType a, EBulkType b)
    {
        return (a & b) == b;
    }
}