1 files changed, 314 insertions, 0 deletions
diff --git a/Ryujinx.Ava/UI/Windows/DownloadableContentManagerWindow.axaml.cs b/Ryujinx.Ava/UI/Windows/DownloadableContentManagerWindow.axaml.cs
new file mode 100644
index 00000000..11be9383
--- /dev/null
+++ b/Ryujinx.Ava/UI/Windows/DownloadableContentManagerWindow.axaml.cs
@@ -0,0 +1,314 @@
+using Avalonia.Collections;
+using Avalonia.Controls;
+using Avalonia.Threading;
+using LibHac.Common;
+using LibHac.Fs;
+using LibHac.Fs.Fsa;
+using LibHac.FsSystem;
+using LibHac.Tools.Fs;
+using LibHac.Tools.FsSystem;
+using LibHac.Tools.FsSystem.NcaUtils;
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.UI.Controls;
+using Ryujinx.Ava.UI.Helpers;
+using Ryujinx.Ava.UI.Models;
+using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Utilities;
+using Ryujinx.HLE.FileSystem;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reactive.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Path = System.IO.Path;
+
+namespace Ryujinx.Ava.UI.Windows
+{
+    public partial class DownloadableContentManagerWindow : StyleableWindow
+    {
+        private readonly List<DownloadableContentContainer> _downloadableContentContainerList;
+        private readonly string                             _downloadableContentJsonPath;
+
+        private VirtualFileSystem                      _virtualFileSystem    { get; }
+        private AvaloniaList<DownloadableContentModel> _downloadableContents { get; set; }
+
+        private ulong  _titleId   { get; }
+        private string _titleName { get; }
+
+        public DownloadableContentManagerWindow()
+        {
+            DataContext = this;
+
+            InitializeComponent();
+
+            Title = $"Ryujinx {Program.Version} - {LocaleManager.Instance["DlcWindowTitle"]} - {_titleName} ({_titleId:X16})";
+        }
+
+        public DownloadableContentManagerWindow(VirtualFileSystem virtualFileSystem, ulong titleId, string titleName)
+        {
+            _virtualFileSystem    = virtualFileSystem;
+            _downloadableContents = new AvaloniaList<DownloadableContentModel>();
+
+            _titleId   = titleId;
+            _titleName = titleName;
+
+            _downloadableContentJsonPath = Path.Combine(AppDataManager.GamesDirPath, titleId.ToString("x16"), "dlc.json");
+
+            try
+            {
+                _downloadableContentContainerList = JsonHelper.DeserializeFromFile<List<DownloadableContentContainer>>(_downloadableContentJsonPath);
+            }
+            catch
+            {
+                _downloadableContentContainerList = new List<DownloadableContentContainer>();
+            }
+
+            DataContext = this;
+
+            InitializeComponent();
+
+            RemoveButton.IsEnabled = false;
+
+            DlcDataGrid.SelectionChanged += DlcDataGrid_SelectionChanged;
+
+            Title = $"Ryujinx {Program.Version} - {LocaleManager.Instance["DlcWindowTitle"]} - {_titleName} ({_titleId:X16})";
+
+            LoadDownloadableContents();
+            PrintHeading();
+        }
+
+        private void DlcDataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            RemoveButton.IsEnabled = (DlcDataGrid.SelectedItems.Count > 0);
+        }
+
+        private void PrintHeading()
+        {
+            Heading.Text = string.Format(LocaleManager.Instance["DlcWindowHeading"], _downloadableContents.Count, _titleName, _titleId.ToString("X16"));
+        }
+
+        private void LoadDownloadableContents()
+        {
+            foreach (DownloadableContentContainer downloadableContentContainer in _downloadableContentContainerList)
+            {
+                if (File.Exists(downloadableContentContainer.ContainerPath))
+                {
+                    using FileStream containerFile = File.OpenRead(downloadableContentContainer.ContainerPath);
+
+                    PartitionFileSystem partitionFileSystem = new(containerFile.AsStorage());
+
+                    _virtualFileSystem.ImportTickets(partitionFileSystem);
+
+                    foreach (DownloadableContentNca downloadableContentNca in downloadableContentContainer.DownloadableContentNcaList)
+                    {
+                        using UniqueRef<IFile> ncaFile = new();
+
+                        partitionFileSystem.OpenFile(ref ncaFile.Ref(), downloadableContentNca.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
+
+                        Nca nca = TryOpenNca(ncaFile.Get.AsStorage(), downloadableContentContainer.ContainerPath);
+                        if (nca != null)
+                        {
+                            _downloadableContents.Add(new DownloadableContentModel(nca.Header.TitleId.ToString("X16"),
+                                                                                   downloadableContentContainer.ContainerPath,
+                                                                                   downloadableContentNca.FullPath,
+                                                                                   downloadableContentNca.Enabled));
+                        }
+                    }
+                }
+            }
+
+            // NOTE: Save the list again to remove leftovers.
+            Save();
+        }
+
+        private Nca TryOpenNca(IStorage ncaStorage, string containerPath)
+        {
+            try
+            {
+                return new Nca(_virtualFileSystem.KeySet, ncaStorage);
+            }
+            catch (Exception ex)
+            {
+                Dispatcher.UIThread.InvokeAsync(async () =>
+                {
+                    await ContentDialogHelper.CreateErrorDialog(string.Format(LocaleManager.Instance["DialogDlcLoadNcaErrorMessage"], ex.Message, containerPath));
+                });
+            }
+
+            return null;
+        }
+
+        private async Task AddDownloadableContent(string path)
+        {
+            if (!File.Exists(path) || _downloadableContents.FirstOrDefault(x => x.ContainerPath == path) != null)
+            {
+                return;
+            }
+
+            using FileStream containerFile = File.OpenRead(path);
+
+            PartitionFileSystem partitionFileSystem         = new(containerFile.AsStorage());
+            bool                containsDownloadableContent = false;
+
+            _virtualFileSystem.ImportTickets(partitionFileSystem);
+
+            foreach (DirectoryEntryEx fileEntry in partitionFileSystem.EnumerateEntries("/", "*.nca"))
+            {
+                using var ncaFile = new UniqueRef<IFile>();
+
+                partitionFileSystem.OpenFile(ref ncaFile.Ref(), fileEntry.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
+
+                Nca nca = TryOpenNca(ncaFile.Get.AsStorage(), path);
+                if (nca == null)
+                {
+                    continue;
+                }
+
+                if (nca.Header.ContentType == NcaContentType.PublicData)
+                {
+                    if ((nca.Header.TitleId & 0xFFFFFFFFFFFFE000) != _titleId)
+                    {
+                        break;
+                    }
+
+                    _downloadableContents.Add(new DownloadableContentModel(nca.Header.TitleId.ToString("X16"), path, fileEntry.FullPath, true));
+
+                    containsDownloadableContent = true;
+                }
+            }
+
+            if (!containsDownloadableContent)
+            {
+                await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance["DialogDlcNoDlcErrorMessage"]);
+            }
+        }
+
+        private void RemoveDownloadableContents(bool removeSelectedOnly = false)
+        {
+            if (removeSelectedOnly)
+            {
+                AvaloniaList<DownloadableContentModel> removedItems = new();
+
+                foreach (var item in DlcDataGrid.SelectedItems)
+                {
+                    removedItems.Add(item as DownloadableContentModel);
+                }
+
+                DlcDataGrid.SelectedItems.Clear();
+
+                foreach (var item in removedItems)
+                {
+                    _downloadableContents.RemoveAll(_downloadableContents.Where(x => x.TitleId == item.TitleId).ToList());
+                }
+            }
+            else
+            {
+                _downloadableContents.Clear();
+            }
+
+            PrintHeading();
+        }
+
+        public void RemoveSelected()
+        {
+            RemoveDownloadableContents(true);
+        }
+
+        public void RemoveAll()
+        {
+            RemoveDownloadableContents();
+        }
+
+        public void EnableAll()
+        {
+            foreach(var item in _downloadableContents)
+            {
+                item.Enabled = true;
+            }
+        }
+
+        public void DisableAll()
+        {
+            foreach (var item in _downloadableContents)
+            {
+                item.Enabled = false;
+            }
+        }
+
+        public async void Add()
+        {
+            OpenFileDialog dialog = new OpenFileDialog()
+            { 
+                Title         = LocaleManager.Instance["SelectDlcDialogTitle"],
+                AllowMultiple = true
+            };
+
+            dialog.Filters.Add(new FileDialogFilter
+            {
+                Name       = "NSP",
+                Extensions = { "nsp" }
+            });
+
+            string[] files = await dialog.ShowAsync(this);
+
+            if (files != null)
+            {
+                foreach (string file in files)
+                {
+                   await AddDownloadableContent(file);
+                }
+            }
+
+            PrintHeading();
+        }
+
+        public void Save()
+        {
+            _downloadableContentContainerList.Clear();
+
+            DownloadableContentContainer container = default;
+
+            foreach (DownloadableContentModel downloadableContent in _downloadableContents)
+            {
+                if (container.ContainerPath != downloadableContent.ContainerPath)
+                {
+                    if (!string.IsNullOrWhiteSpace(container.ContainerPath))
+                    {
+                        _downloadableContentContainerList.Add(container);
+                    }
+
+                    container = new DownloadableContentContainer
+                    {
+                        ContainerPath              = downloadableContent.ContainerPath,
+                        DownloadableContentNcaList = new List<DownloadableContentNca>()
+                    };
+                }
+
+                container.DownloadableContentNcaList.Add(new DownloadableContentNca
+                {
+                    Enabled  = downloadableContent.Enabled,
+                    TitleId  = Convert.ToUInt64(downloadableContent.TitleId, 16),
+                    FullPath = downloadableContent.FullPath
+                });
+            }
+
+            if (!string.IsNullOrWhiteSpace(container.ContainerPath))
+            {
+                _downloadableContentContainerList.Add(container);
+            }
+
+            using (FileStream downloadableContentJsonStream = File.Create(_downloadableContentJsonPath, 4096, FileOptions.WriteThrough))
+            {
+                downloadableContentJsonStream.Write(Encoding.UTF8.GetBytes(JsonHelper.Serialize(_downloadableContentContainerList, true)));
+            }
+        }
+
+        public void SaveAndClose()
+        {
+            Save();
+            Close();
+        }
+    }
+}
+\ No newline at end of file