UI - Avalonia Part 3 (#3441)

* Add all other windows

* addreesed review

* Prevent "No Update" option from being deleted

* Select no update is the current update is removed from the title update window

* fix amiibo crash

Ryujinx.Ava/Ui/ViewModels/AmiiboWindowViewModel.cs

@@ -0,0 +1,450 @@
+using Avalonia;
+using Avalonia.Collections;
+using Avalonia.Media.Imaging;
+using Avalonia.Threading;
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.Ui.Controls;
+using Ryujinx.Ava.Ui.Models;
+using Ryujinx.Ava.Ui.Windows;
+using Ryujinx.Common;
+using Ryujinx.Common.Configuration;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.IO;
+using System.Linq;
+using System.Net.Http;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace Ryujinx.Ava.Ui.ViewModels
+{
+    public class AmiiboWindowViewModel : BaseModel, IDisposable
+    {
+        private const string DefaultJson = "{ \"amiibo\": [] }";
+        private const float AmiiboImageSize = 350f;
+
+        private readonly string _amiiboJsonPath;
+        private readonly byte[] _amiiboLogoBytes;
+        private readonly HttpClient _httpClient;
+        private readonly StyleableWindow _owner;
+        
+        private Bitmap _amiiboImage;
+        private List<Amiibo.AmiiboApi> _amiiboList;
+        private AvaloniaList<Amiibo.AmiiboApi> _amiibos;
+        private ObservableCollection<string> _amiiboSeries;
+
+        private int _amiiboSelectedIndex;
+        private int _seriesSelectedIndex;
+        private bool _enableScanning;
+        private bool _showAllAmiibo;
+        private bool _useRandomUuid;
+        private string _usage;
+
+        public AmiiboWindowViewModel(StyleableWindow owner, string lastScannedAmiiboId, string titleId)
+        {
+            _owner = owner;
+            _httpClient = new HttpClient { Timeout = TimeSpan.FromMilliseconds(5000) };
+            LastScannedAmiiboId = lastScannedAmiiboId;
+            TitleId = titleId;
+
+            Directory.CreateDirectory(Path.Join(AppDataManager.BaseDirPath, "system", "amiibo"));
+
+            _amiiboJsonPath = Path.Join(AppDataManager.BaseDirPath, "system", "amiibo", "Amiibo.json");
+            _amiiboList = new List<Amiibo.AmiiboApi>();
+            _amiiboSeries = new ObservableCollection<string>();
+            _amiibos = new AvaloniaList<Amiibo.AmiiboApi>();
+
+            _amiiboLogoBytes = EmbeddedResources.Read("Ryujinx.Ui.Common/Resources/Logo_Amiibo.png");
+
+            _ = LoadContentAsync();
+        }
+
+        public AmiiboWindowViewModel() { }
+
+        public string TitleId { get; set; }
+        public string LastScannedAmiiboId { get; set; }
+
+        public UserResult Response { get; private set; }
+
+        public bool UseRandomUuid
+        {
+            get => _useRandomUuid;
+            set
+            {
+                _useRandomUuid = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public bool ShowAllAmiibo
+        {
+            get => _showAllAmiibo;
+            set
+            {
+                _showAllAmiibo = value;
+
+#pragma warning disable 4014
+                ParseAmiiboData();
+#pragma warning restore 4014
+
+                OnPropertyChanged();
+            }
+        }
+
+        public AvaloniaList<Amiibo.AmiiboApi> AmiiboList
+        {
+            get => _amiibos;
+            set
+            {
+                _amiibos = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public ObservableCollection<string> AmiiboSeries
+        {
+            get => _amiiboSeries;
+            set
+            {
+                _amiiboSeries = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public int SeriesSelectedIndex
+        {
+            get => _seriesSelectedIndex;
+            set
+            {
+                _seriesSelectedIndex = value;
+
+                FilterAmiibo();
+
+                OnPropertyChanged();
+            }
+        }
+
+        public int AmiiboSelectedIndex
+        {
+            get => _amiiboSelectedIndex;
+            set
+            {
+                _amiiboSelectedIndex = value;
+
+                EnableScanning = _amiiboSelectedIndex >= 0 && _amiiboSelectedIndex < _amiibos.Count;
+
+                SetAmiiboDetails();
+
+                OnPropertyChanged();
+            }
+        }
+
+        public Bitmap AmiiboImage
+        {
+            get => _amiiboImage;
+            set
+            {
+                _amiiboImage = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public string Usage
+        {
+            get => _usage;
+            set
+            {
+                _usage = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public bool EnableScanning
+        {
+            get => _enableScanning;
+            set
+            {
+                _enableScanning = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public void Dispose()
+        {
+            _httpClient.Dispose();
+        }
+
+        private async Task LoadContentAsync()
+        {
+            string amiiboJsonString = DefaultJson;
+
+            if (File.Exists(_amiiboJsonPath))
+            {
+                amiiboJsonString = File.ReadAllText(_amiiboJsonPath);
+
+                if (await NeedsUpdate(JsonSerializer.Deserialize<Amiibo.AmiiboJson>(amiiboJsonString).LastUpdated))
+                {
+                    amiiboJsonString = await DownloadAmiiboJson();
+                }
+            }
+            else
+            {
+                try
+                {
+                    amiiboJsonString = await DownloadAmiiboJson();
+                }
+                catch
+                {
+                    ShowInfoDialog();
+                }
+            }
+
+            _amiiboList = JsonSerializer.Deserialize<Amiibo.AmiiboJson>(amiiboJsonString).Amiibo;
+            _amiiboList = _amiiboList.OrderBy(amiibo => amiibo.AmiiboSeries).ToList();
+
+            ParseAmiiboData();
+        }
+
+        private void ParseAmiiboData()
+        {
+            _amiiboSeries.Clear();
+            _amiibos.Clear();
+
+            for (int i = 0; i < _amiiboList.Count; i++)
+            {
+                if (!_amiiboSeries.Contains(_amiiboList[i].AmiiboSeries))
+                {
+                    if (!ShowAllAmiibo)
+                    {
+                        foreach (Amiibo.AmiiboApiGamesSwitch game in _amiiboList[i].GamesSwitch)
+                        {
+                            if (game != null)
+                            {
+                                if (game.GameId.Contains(TitleId))
+                                {
+                                    AmiiboSeries.Add(_amiiboList[i].AmiiboSeries);
+
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                    else
+                    {
+                        AmiiboSeries.Add(_amiiboList[i].AmiiboSeries);
+                    }
+                }
+            }
+
+            if (LastScannedAmiiboId != "")
+            {
+                SelectLastScannedAmiibo();
+            }
+            else
+            {
+                SeriesSelectedIndex = 0;
+            }
+        }
+
+        private void SelectLastScannedAmiibo()
+        {
+            Amiibo.AmiiboApi scanned = _amiiboList.FirstOrDefault(amiibo => amiibo.GetId() == LastScannedAmiiboId);
+
+            SeriesSelectedIndex = AmiiboSeries.IndexOf(scanned.AmiiboSeries);
+            AmiiboSelectedIndex = AmiiboList.IndexOf(scanned);
+        }
+
+        private void FilterAmiibo()
+        {
+            _amiibos.Clear();
+
+            if (_seriesSelectedIndex < 0)
+            {
+                return;
+            }
+
+            List<Amiibo.AmiiboApi> amiiboSortedList = _amiiboList
+                .Where(amiibo => amiibo.AmiiboSeries == _amiiboSeries[SeriesSelectedIndex])
+                .OrderBy(amiibo => amiibo.Name).ToList();
+
+            for (int i = 0; i < amiiboSortedList.Count; i++)
+            {
+                if (!_amiibos.Contains(amiiboSortedList[i]))
+                {
+                    if (!_showAllAmiibo)
+                    {
+                        foreach (Amiibo.AmiiboApiGamesSwitch game in amiiboSortedList[i].GamesSwitch)
+                        {
+                            if (game != null)
+                            {
+                                if (game.GameId.Contains(TitleId))
+                                {
+                                    _amiibos.Add(amiiboSortedList[i]);
+
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                    else
+                    {
+                        _amiibos.Add(amiiboSortedList[i]);
+                    }
+                }
+            }
+
+            AmiiboSelectedIndex = 0;
+        }
+
+        private void SetAmiiboDetails()
+        {
+            ResetAmiiboPreview();
+
+            Usage = string.Empty;
+
+            if (_amiiboSelectedIndex < 0)
+            {
+                return;
+            }
+
+            Amiibo.AmiiboApi selected = _amiibos[_amiiboSelectedIndex];
+
+            string imageUrl = _amiiboList.FirstOrDefault(amiibo => amiibo.Equals(selected)).Image;
+
+            string usageString = "";
+
+            for (int i = 0; i < _amiiboList.Count; i++)
+            {
+                if (_amiiboList[i].Equals(selected))
+                {
+                    bool writable = false;
+
+                    foreach (Amiibo.AmiiboApiGamesSwitch item in _amiiboList[i].GamesSwitch)
+                    {
+                        if (item.GameId.Contains(TitleId))
+                        {
+                            foreach (Amiibo.AmiiboApiUsage usageItem in item.AmiiboUsage)
+                            {
+                                usageString += Environment.NewLine +
+                                               $"- {usageItem.Usage.Replace("/", Environment.NewLine + "-")}";
+
+                                writable = usageItem.Write;
+                            }
+                        }
+                    }
+
+                    if (usageString.Length == 0)
+                    {
+                        usageString = LocaleManager.Instance["Unknown"] + ".";
+                    }
+
+                    Usage = $"{LocaleManager.Instance["Usage"]} {(writable ? $" ({LocaleManager.Instance["Writable"]})" : "")} : {usageString}";
+                }
+            }
+
+            _ = UpdateAmiiboPreview(imageUrl);
+        }
+
+        private async Task<bool> NeedsUpdate(DateTime oldLastModified)
+        {
+            try
+            {
+                HttpResponseMessage response =
+                    await _httpClient.SendAsync(new HttpRequestMessage(HttpMethod.Head, "https://amiibo.ryujinx.org/"));
+
+                if (response.IsSuccessStatusCode)
+                {
+                    return response.Content.Headers.LastModified != oldLastModified;
+                }
+
+                return false;
+            }
+            catch
+            {
+                ShowInfoDialog();
+
+                return false;
+            }
+        }
+
+        private async Task<string> DownloadAmiiboJson()
+        {
+            HttpResponseMessage response = await _httpClient.GetAsync("https://amiibo.ryujinx.org/");
+
+            if (response.IsSuccessStatusCode)
+            {
+                string amiiboJsonString = await response.Content.ReadAsStringAsync();
+
+                using (FileStream dlcJsonStream = File.Create(_amiiboJsonPath, 4096, FileOptions.WriteThrough))
+                {
+                    dlcJsonStream.Write(Encoding.UTF8.GetBytes(amiiboJsonString));
+                }
+
+                return amiiboJsonString;
+            }
+
+            await ContentDialogHelper.CreateInfoDialog(_owner, LocaleManager.Instance["DialogAmiiboApiTitle"],
+                LocaleManager.Instance["DialogAmiiboApiFailFetchMessage"],
+                LocaleManager.Instance["InputDialogOk"],
+                "",
+                LocaleManager.Instance["RyujinxInfo"]);
+
+            Close();
+
+            return DefaultJson;
+        }
+
+        private void Close()
+        {
+            Dispatcher.UIThread.Post(_owner.Close);
+        }
+
+        private async Task UpdateAmiiboPreview(string imageUrl)
+        {
+            HttpResponseMessage response = await _httpClient.GetAsync(imageUrl);
+
+            if (response.IsSuccessStatusCode)
+            {
+                byte[] amiiboPreviewBytes = await response.Content.ReadAsByteArrayAsync();
+                using (MemoryStream memoryStream = new(amiiboPreviewBytes))
+                {
+                    Bitmap bitmap = new(memoryStream);
+
+                    double ratio = Math.Min(AmiiboImageSize / bitmap.Size.Width,
+                        AmiiboImageSize / bitmap.Size.Height);
+
+                    int resizeHeight = (int)(bitmap.Size.Height * ratio);
+                    int resizeWidth = (int)(bitmap.Size.Width * ratio);
+
+                    AmiiboImage = bitmap.CreateScaledBitmap(new PixelSize(resizeWidth, resizeHeight));
+                }
+            }
+        }
+
+        private void ResetAmiiboPreview()
+        {
+            using (MemoryStream memoryStream = new(_amiiboLogoBytes))
+            {
+                Bitmap bitmap = new(memoryStream);
+
+                AmiiboImage = bitmap;
+            }
+        }
+
+        private async void ShowInfoDialog()
+        {
+            await ContentDialogHelper.CreateInfoDialog(_owner, LocaleManager.Instance["DialogAmiiboApiTitle"],
+                LocaleManager.Instance["DialogAmiiboApiConnectErrorMessage"],
+                LocaleManager.Instance["InputDialogOk"],
+                "",
+                LocaleManager.Instance["RyujinxInfo"]);
+        }
+    }
+}

Ryujinx.Ava/Ui/ViewModels/AvatarProfileViewModel.cs

@@ -0,0 +1,363 @@
+using Avalonia.Media;
+using DynamicData;
+using LibHac.Common;
+using LibHac.Fs;
+using LibHac.Fs.Fsa;
+using LibHac.FsSystem;
+using LibHac.Ncm;
+using LibHac.Tools.Fs;
+using LibHac.Tools.FsSystem;
+using LibHac.Tools.FsSystem.NcaUtils;
+using Ryujinx.Ava.Ui.Models;
+using Ryujinx.HLE.FileSystem;
+using SixLabors.ImageSharp;
+using SixLabors.ImageSharp.Formats.Png;
+using SixLabors.ImageSharp.PixelFormats;
+using SixLabors.ImageSharp.Processing;
+using System;
+using System.Buffers.Binary;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.IO;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Color = Avalonia.Media.Color;
+
+namespace Ryujinx.Ava.Ui.ViewModels
+{
+    internal class AvatarProfileViewModel : BaseModel, IDisposable
+    {
+        private const int MaxImageTasks = 4;
+        
+        private static readonly Dictionary<string, byte[]> _avatarStore = new();
+        private static bool _isPreloading;
+        private static Action _loadCompleteAction;
+
+        private ObservableCollection<ProfileImageModel> _images;
+        private Color _backgroundColor = Colors.White;
+
+        private int _selectedIndex;
+        private int _imagesLoaded;
+        private bool _isActive;
+        private byte[] _selectedImage;
+        private bool _isIndeterminate = true;
+
+        public bool IsActive
+        {
+            get => _isActive;
+            set => _isActive = value;
+        }
+
+        public AvatarProfileViewModel()
+        {
+            _images = new ObservableCollection<ProfileImageModel>();
+        }
+        
+        public AvatarProfileViewModel(Action loadCompleteAction)
+        {
+            _images = new ObservableCollection<ProfileImageModel>();
+
+            if (_isPreloading)
+            {
+                _loadCompleteAction = loadCompleteAction;
+            }
+            else
+            {
+                ReloadImages();
+            }
+        }
+
+        public Color BackgroundColor
+        {
+            get => _backgroundColor;
+            set
+            {
+                _backgroundColor = value;
+
+                IsActive = false;
+                
+                ReloadImages();
+            }
+        }
+
+        public ObservableCollection<ProfileImageModel> Images
+        {
+            get => _images;
+            set
+            {
+                _images = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public bool IsIndeterminate
+        {
+            get => _isIndeterminate;
+            set
+            {
+                _isIndeterminate = value;
+                
+                OnPropertyChanged();
+            }
+        }
+
+        public int ImageCount => _avatarStore.Count;
+
+        public int ImagesLoaded
+        {
+            get => _imagesLoaded;
+            set
+            {
+                _imagesLoaded = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public int SelectedIndex
+        {
+            get => _selectedIndex;
+            set
+            {
+                _selectedIndex = value;
+
+                if (_selectedIndex == -1)
+                {
+                    SelectedImage = null;
+                }
+                else
+                {
+                    SelectedImage = _images[_selectedIndex].Data;
+                }
+
+                OnPropertyChanged();
+            }
+        }
+
+        public byte[] SelectedImage
+        {
+            get => _selectedImage;
+            private set => _selectedImage = value;
+        }
+
+        public void ReloadImages()
+        {
+            if (_isPreloading)
+            {
+                IsIndeterminate = false;
+                return;
+            }
+            Task.Run(() =>
+            {
+                IsActive = true;
+
+                Images.Clear();
+                int selectedIndex = _selectedIndex;
+                int index = 0;
+                
+                ImagesLoaded = 0;
+                IsIndeterminate = false;
+
+                var keys = _avatarStore.Keys.ToList();
+
+                var newImages = new List<ProfileImageModel>();
+                var tasks = new List<Task>();
+
+                for (int i = 0; i < MaxImageTasks; i++)
+                {
+                    var start = i;
+                    tasks.Add(Task.Run(() => ImageTask(start)));
+                }
+
+                Task.WaitAll(tasks.ToArray());
+                
+                Images.AddRange(newImages);
+
+                void ImageTask(int start)
+                {
+                    for (int i = start; i < keys.Count; i += MaxImageTasks)
+                    {
+                        if (!IsActive)
+                        {
+                            return;
+                        }
+
+                        var key = keys[i];
+                        var image = _avatarStore[keys[i]];
+
+                        var data = ProcessImage(image);
+                        newImages.Add(new ProfileImageModel(key, data));
+                        if (index++ == selectedIndex)
+                        {
+                            SelectedImage = data;
+                        }
+
+                        Interlocked.Increment(ref _imagesLoaded);
+                        OnPropertyChanged(nameof(ImagesLoaded));
+                    }
+                }
+            });
+        }
+
+        private byte[] ProcessImage(byte[] data)
+        {
+            using (MemoryStream streamJpg = new())
+            {
+                Image avatarImage = Image.Load(data, new PngDecoder());
+
+                avatarImage.Mutate(x => x.BackgroundColor(new Rgba32(BackgroundColor.R,
+                    BackgroundColor.G,
+                    BackgroundColor.B,
+                    BackgroundColor.A)));
+                avatarImage.SaveAsJpeg(streamJpg);
+
+                return streamJpg.ToArray();
+            }
+        }
+
+        public static void PreloadAvatars(ContentManager contentManager, VirtualFileSystem virtualFileSystem)
+        {
+            try
+            {
+                if (_avatarStore.Count > 0)
+                {
+                    return;
+                }
+
+                _isPreloading = true;
+
+                string contentPath =
+                    contentManager.GetInstalledContentPath(0x010000000000080A, StorageId.BuiltInSystem,
+                        NcaContentType.Data);
+                string avatarPath = virtualFileSystem.SwitchPathToSystemPath(contentPath);
+
+                if (!string.IsNullOrWhiteSpace(avatarPath))
+                {
+                    using (IStorage ncaFileStream = new LocalStorage(avatarPath, FileAccess.Read, FileMode.Open))
+                    {
+                        Nca nca = new(virtualFileSystem.KeySet, ncaFileStream);
+                        IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.ErrorOnInvalid);
+
+                        foreach (DirectoryEntryEx item in romfs.EnumerateEntries())
+                        {
+                            // TODO: Parse DatabaseInfo.bin and table.bin files for more accuracy.
+                            if (item.Type == DirectoryEntryType.File && item.FullPath.Contains("chara") &&
+                                item.FullPath.Contains("szs"))
+                            {
+                                using var file = new UniqueRef<IFile>();
+
+                                romfs.OpenFile(ref file.Ref(), ("/" + item.FullPath).ToU8Span(), OpenMode.Read)
+                                    .ThrowIfFailure();
+
+                                using (MemoryStream stream = new())
+                                using (MemoryStream streamPng = new())
+                                {
+                                    file.Get.AsStream().CopyTo(stream);
+
+                                    stream.Position = 0;
+
+                                    Image avatarImage = Image.LoadPixelData<Rgba32>(DecompressYaz0(stream), 256, 256);
+
+                                    avatarImage.SaveAsPng(streamPng);
+
+                                    _avatarStore.Add(item.FullPath, streamPng.ToArray());
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            finally
+            {
+                _isPreloading = false;
+                _loadCompleteAction?.Invoke();
+            }
+        }
+
+        private static byte[] DecompressYaz0(Stream stream)
+        {
+            using (BinaryReader reader = new(stream))
+            {
+                reader.ReadInt32(); // Magic
+
+                uint decodedLength = BinaryPrimitives.ReverseEndianness(reader.ReadUInt32());
+
+                reader.ReadInt64(); // Padding
+
+                byte[] input = new byte[stream.Length - stream.Position];
+                stream.Read(input, 0, input.Length);
+
+                uint inputOffset = 0;
+
+                byte[] output = new byte[decodedLength];
+                uint outputOffset = 0;
+
+                ushort mask = 0;
+                byte header = 0;
+
+                while (outputOffset < decodedLength)
+                {
+                    if ((mask >>= 1) == 0)
+                    {
+                        header = input[inputOffset++];
+                        mask = 0x80;
+                    }
+
+                    if ((header & mask) != 0)
+                    {
+                        if (outputOffset == output.Length)
+                        {
+                            break;
+                        }
+
+                        output[outputOffset++] = input[inputOffset++];
+                    }
+                    else
+                    {
+                        byte byte1 = input[inputOffset++];
+                        byte byte2 = input[inputOffset++];
+
+                        uint dist = (uint)((byte1 & 0xF) << 8) | byte2;
+                        uint position = outputOffset - (dist + 1);
+
+                        uint length = (uint)byte1 >> 4;
+                        if (length == 0)
+                        {
+                            length = (uint)input[inputOffset++] + 0x12;
+                        }
+                        else
+                        {
+                            length += 2;
+                        }
+
+                        uint gap = outputOffset - position;
+                        uint nonOverlappingLength = length;
+
+                        if (nonOverlappingLength > gap)
+                        {
+                            nonOverlappingLength = gap;
+                        }
+
+                        Buffer.BlockCopy(output, (int)position, output, (int)outputOffset, (int)nonOverlappingLength);
+                        outputOffset += nonOverlappingLength;
+                        position += nonOverlappingLength;
+                        length -= nonOverlappingLength;
+
+                        while (length-- > 0)
+                        {
+                            output[outputOffset++] = output[position++];
+                        }
+                    }
+                }
+
+                return output;
+            }
+        }
+
+        public void Dispose()
+        {
+            _loadCompleteAction = null;
+            IsActive = false;
+        }
+    }
+}

Ryujinx.Ava/Ui/ViewModels/MainWindowViewModel.cs

@@ -67,6 +67,8 @@ namespace Ryujinx.Ava.Ui.ViewModels
         private bool _isPaused;
         private bool _showContent = true;
         private bool _isLoadingIndeterminate = true;
+        private bool _showAll;
+        private string _lastScannedAmiiboId;
         private ReadOnlyObservableCollection<ApplicationData> _appsObservableList;
 
         public string TitleName { get; internal set; }
@@ -695,15 +697,28 @@ namespace Ryujinx.Ava.Ui.ViewModels
             }
         }
 
-        public void OpenAmiiboWindow()
+        public async void OpenAmiiboWindow()
         {
             if (!_isAmiiboRequested)
             {
                 return;
             }
+            
+            if (_owner.AppHost.Device.System.SearchingForAmiibo(out int deviceId))
+            {
+                string titleId = _owner.AppHost.Device.Application.TitleIdText.ToUpper();
+                AmiiboWindow window = new(_showAll, _lastScannedAmiiboId, titleId);
 
-            // TODO : Implement Amiibo window
-            ContentDialogHelper.ShowNotAvailableMessage(_owner);
+                await window.ShowDialog(_owner);
+
+                if (window.IsScanned)
+                {
+                    _showAll = window.ViewModel.ShowAllAmiibo;
+                    _lastScannedAmiiboId = window.ScannedAmiibo.GetId();
+
+                    _owner.AppHost.Device.System.ScanAmiibo(deviceId, _lastScannedAmiiboId, window.ViewModel.UseRandomUuid);
+                }
+            }
         }
 
         public void HandleShaderProgress(Switch emulationContext)
@@ -953,10 +968,11 @@ namespace Ryujinx.Ava.Ui.ViewModels
             LoadConfigurableHotKeys();
         }
 
-        public void ManageProfiles()
+        public async void ManageProfiles()
         {
-            // TODO : Implement Profiles window
-            ContentDialogHelper.ShowNotAvailableMessage(_owner);
+            UserProfileWindow window = new(_owner.AccountManager, _owner.ContentManager, _owner.VirtualFileSystem);
+
+            await window.ShowDialog(_owner);
         }
 
         public async void OpenAboutWindow()
@@ -1227,33 +1243,60 @@ namespace Ryujinx.Ava.Ui.ViewModels
             }
         }
 
-        public void OpenTitleUpdateManager()
+        public async void OpenTitleUpdateManager()
         {
-            // TODO : Implement Update window
-            ContentDialogHelper.ShowNotAvailableMessage(_owner);
+            var selection = SelectedApplication;
+
+            if (selection != null)
+            {
+                TitleUpdateWindow titleUpdateManager =
+                    new(_owner.VirtualFileSystem, selection.TitleId, selection.TitleName);
+
+                await titleUpdateManager.ShowDialog(_owner);
+            }
         }
 
-        public void OpenDlcManager()
+        public async void OpenDlcManager()
         {
-            // TODO : Implement Dlc window
-            ContentDialogHelper.ShowNotAvailableMessage(_owner);
+            var selection = SelectedApplication;
+
+            if (selection != null)
+            {
+                DlcManagerWindow dlcManager = new(_owner.VirtualFileSystem, ulong.Parse(selection.TitleId, NumberStyles.HexNumber), selection.TitleName);
+
+                await dlcManager.ShowDialog(_owner);
+            }
         }
 
-        public void OpenCheatManager()
+        public async void OpenCheatManager()
         {
-            // TODO : Implement cheat window
-            ContentDialogHelper.ShowNotAvailableMessage(_owner);
+            var selection = SelectedApplication;
+
+            if (selection != null)
+            {
+                CheatWindow cheatManager = new(_owner.VirtualFileSystem, selection.TitleId, selection.TitleName);
+
+                await cheatManager.ShowDialog(_owner);
+            }
         }
 
-        public void OpenCheatManagerForCurrentApp()
+        public async void OpenCheatManagerForCurrentApp()
         {
             if (!IsGameRunning)
             {
                 return;
             }
 
-            // TODO : Implement cheat window
-            ContentDialogHelper.ShowNotAvailableMessage(_owner);
+            var application = _owner.AppHost.Device.Application;
+
+            if (application != null)
+            {
+                CheatWindow cheatManager = new(_owner.VirtualFileSystem, application.TitleIdText, application.TitleName);
+
+                await cheatManager.ShowDialog(_owner);
+
+                _owner.AppHost.Device.EnableCheats();
+            }
         }
 
         public void OpenDeviceSaveDirectory()

Ryujinx.Ava/Ui/ViewModels/UserProfileViewModel.cs

@@ -0,0 +1,166 @@
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.Ui.Controls;
+using Ryujinx.Ava.Ui.Windows;
+using Ryujinx.HLE.HOS.Services.Account.Acc;
+using System;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Threading.Tasks;
+using UserProfile = Ryujinx.Ava.Ui.Models.UserProfile;
+
+namespace Ryujinx.Ava.Ui.ViewModels
+{
+    public class UserProfileViewModel : BaseModel, IDisposable
+    {
+        private const uint MaxProfileNameLength = 0x20;
+
+        private readonly UserProfileWindow _owner;
+
+        private UserProfile _selectedProfile;
+        private string _tempUserName;
+
+        public UserProfileViewModel()
+        {
+            Profiles = new ObservableCollection<UserProfile>();
+        }
+
+        public UserProfileViewModel(UserProfileWindow owner) : this()
+        {
+            _owner = owner;
+
+            LoadProfiles();
+        }
+
+        public ObservableCollection<UserProfile> Profiles { get; set; }
+
+        public UserProfile SelectedProfile
+        {
+            get => _selectedProfile;
+            set
+            {
+                _selectedProfile = value;
+
+                OnPropertyChanged(nameof(SelectedProfile));
+                OnPropertyChanged(nameof(IsSelectedProfileDeletable));
+            }
+        }
+
+        public bool IsSelectedProfileDeletable =>
+            _selectedProfile != null && _selectedProfile.UserId != AccountManager.DefaultUserId;
+
+        public void Dispose()
+        {
+        }
+
+        public void LoadProfiles()
+        {
+            Profiles.Clear();
+
+            var profiles = _owner.AccountManager.GetAllUsers()
+                .OrderByDescending(x => x.AccountState == AccountState.Open);
+
+            foreach (var profile in profiles)
+            {
+                Profiles.Add(new UserProfile(profile));
+            }
+
+            SelectedProfile = Profiles.FirstOrDefault(x => x.UserId == _owner.AccountManager.LastOpenedUser.UserId);
+
+            if (SelectedProfile == null)
+            {
+                SelectedProfile = Profiles.First();
+
+                if (SelectedProfile != null)
+                {
+                    _owner.AccountManager.OpenUser(_selectedProfile.UserId);
+                }
+            }
+        }
+
+        public async void ChooseProfileImage()
+        {
+            await SelectProfileImage();
+        }
+
+        public async Task SelectProfileImage(bool isNewUser = false)
+        {
+            ProfileImageSelectionDialog selectionDialog = new(_owner.ContentManager);
+
+            await selectionDialog.ShowDialog(_owner);
+
+            if (selectionDialog.BufferImageProfile != null)
+            {
+                if (isNewUser)
+                {
+                    if (!string.IsNullOrWhiteSpace(_tempUserName))
+                    {
+                        _owner.AccountManager.AddUser(_tempUserName, selectionDialog.BufferImageProfile);
+                    }
+                }
+                else if (SelectedProfile != null)
+                {
+                    _owner.AccountManager.SetUserImage(SelectedProfile.UserId, selectionDialog.BufferImageProfile);
+                    SelectedProfile.Image = selectionDialog.BufferImageProfile;
+
+                    SelectedProfile = null;
+                }
+
+                LoadProfiles();
+            }
+        }
+
+        public async void AddUser()
+        {
+            var dlgTitle = LocaleManager.Instance["InputDialogAddNewProfileTitle"];
+            var dlgMainText = LocaleManager.Instance["InputDialogAddNewProfileHeader"];
+            var dlgSubText = string.Format(LocaleManager.Instance["InputDialogAddNewProfileSubtext"],
+                MaxProfileNameLength);
+
+            _tempUserName =
+                await ContentDialogHelper.CreateInputDialog(dlgTitle, dlgMainText, dlgSubText, _owner,
+                    MaxProfileNameLength);
+
+            if (!string.IsNullOrWhiteSpace(_tempUserName))
+            {
+                await SelectProfileImage(true);
+            }
+
+            _tempUserName = String.Empty;
+        }
+
+        public async void DeleteUser()
+        {
+            if (_selectedProfile != null)
+            {
+                var lastUserId = _owner.AccountManager.LastOpenedUser.UserId;
+
+                if (_selectedProfile.UserId == lastUserId)
+                {
+                    // If we are deleting the currently open profile, then we must open something else before deleting.
+                    var profile = Profiles.FirstOrDefault(x => x.UserId != lastUserId);
+
+                    if (profile == null)
+                    {
+                        ContentDialogHelper.CreateErrorDialog(_owner,
+                            LocaleManager.Instance["DialogUserProfileDeletionWarningMessage"]);
+                        return;
+                    }
+
+                    _owner.AccountManager.OpenUser(profile.UserId);
+                }
+
+                var result =
+                    await ContentDialogHelper.CreateConfirmationDialog(_owner,
+                        LocaleManager.Instance["DialogUserProfileDeletionConfirmMessage"], "",
+                        LocaleManager.Instance["InputDialogYes"], LocaleManager.Instance["InputDialogNo"], "");
+
+                if (result == UserResult.Yes)
+                {
+                    _owner.AccountManager.DeleteUser(_selectedProfile.UserId);
+                }
+            }
+
+            LoadProfiles();
+        }
+    }
+}