changed.对启动器重构的尝试

LanMountainDesktop.Launcher/Infrastructure/Commands.cs

@@ -36,7 +36,7 @@ internal static class Commands
     {
         var appRoot = ResolveAppRoot(context);
         var deploymentLocator = new DeploymentLocator(appRoot);
-        var updateEngine = new UpdateEngineFacade(deploymentLocator);
+        var updateEngine = UpdateEngineFactory.Create(deploymentLocator);
         var pluginInstaller = new PluginInstallerService();
         var pluginUpgrades = new PluginUpgradeQueueService(pluginInstaller);
 
@@ -63,7 +63,7 @@ internal static class Commands
 
     private static async Task<LauncherResult> ExecuteCoreAsync(
         CommandContext context,
-        UpdateEngineFacade updateEngine,
+        IUpdateEngine updateEngine,
         PluginInstallerService pluginInstaller,
         PluginUpgradeQueueService pluginUpgrades)
     {
@@ -84,7 +84,7 @@ internal static class Commands
         }
     }
 
-    private static async Task<LauncherResult> ExecuteUpdateAsync(CommandContext context, UpdateEngineFacade updateEngine)
+    private static async Task<LauncherResult> ExecuteUpdateAsync(CommandContext context, IUpdateEngine updateEngine)
     {
         return context.SubCommand.ToLowerInvariant() switch
         {
@@ -102,7 +102,7 @@ internal static class Commands
         };
     }
 
-    private static async Task<LauncherResult> DownloadUpdatePayloadAsync(CommandContext context, UpdateEngineFacade updateEngine)
+    private static async Task<LauncherResult> DownloadUpdatePayloadAsync(CommandContext context, IUpdateEngine updateEngine)
     {
         return await updateEngine.DownloadAsync(
             context.GetOption("manifest-url") ?? throw new InvalidOperationException("Missing --manifest-url."),

LanMountainDesktop.Launcher/Infrastructure/DeferredSplashStageReporter.cs

@@ -1,40 +0,0 @@
-using Avalonia.Threading;
-using LanMountainDesktop.Launcher.Views;
-
-namespace LanMountainDesktop.Launcher.Infrastructure;
-
-internal sealed class DeferredSplashStageReporter : ISplashStageReporter
-{
-    private ISplashStageReporter? _inner;
-    private readonly List<(string Stage, string Message)> _pending = [];
-
-    public void SetInner(ISplashStageReporter inner)
-    {
-        _inner = inner;
-        foreach (var (stage, message) in _pending)
-        {
-            _inner.Report(stage, message);
-        }
-        _pending.Clear();
-    }
-
-    public void Report(string stage, string message)
-    {
-        if (_inner is not null)
-        {
-            _inner.Report(stage, message);
-        }
-        else
-        {
-            _pending.Add((stage, message));
-        }
-    }
-
-    public void ReportStage(string stage, int progress)
-    {
-        if (_inner is not null)
-        {
-            _inner.ReportStage(stage, progress);
-        }
-    }
-}

LanMountainDesktop.Launcher/Infrastructure/LauncherBackgroundService.cs

@@ -1,174 +0,0 @@
-using Avalonia.Media.Imaging;
-
-namespace LanMountainDesktop.Launcher.Infrastructure;
-
-/// <summary>
-/// 启动器背景图片服务
-/// </summary>
-internal static class LauncherBackgroundService
-{
-    private const string PictureFileName = "Launcher Picture";
-    private const long MaxFileSize = 10 * 1024 * 1024; // 10MB
-    private const double WindowAspectRatio = 7.0 / 5.0; // 700:500
-    private const double AspectRatioTolerance = 0.15; // 15% 误差
-
-    private static Bitmap? _cachedBitmap;
-    private static string? _cachedPath;
-
-    /// <summary>
-    /// 背景图片信息
-    /// </summary>
-    public record BackgroundImageInfo
-    {
-        public required bool Exists { get; init; }
-        public required bool IsValid { get; init; }
-        public string? FilePath { get; init; }
-        public Bitmap? Bitmap { get; init; }
-        public int Width { get; init; }
-        public int Height { get; init; }
-        public double AspectRatio { get; init; }
-        public string? ErrorMessage { get; init; }
-    }
-
-    /// <summary>
-    /// 加载背景图片
-    /// </summary>
-    public static BackgroundImageInfo LoadBackgroundImage()
-    {
-        try
-        {
-            var resolver = new DataLocationResolver(AppContext.BaseDirectory);
-            var launcherPath = resolver.ResolveLauncherDataPath();
-
-            // 查找图片文件
-            var imagePath = FindImageFile(launcherPath);
-            if (imagePath == null)
-            {
-                return new BackgroundImageInfo
-                {
-                    Exists = false,
-                    IsValid = false,
-                    ErrorMessage = "未找到背景图片文件"
-                };
-            }
-
-            // 检查文件大小
-            var fileInfo = new FileInfo(imagePath);
-            if (fileInfo.Length > MaxFileSize)
-            {
-                return new BackgroundImageInfo
-                {
-                    Exists = true,
-                    IsValid = false,
-                    FilePath = imagePath,
-                    ErrorMessage = $"图片文件过大 ({fileInfo.Length / 1024 / 1024}MB > 10MB)"
-                };
-            }
-
-            // 使用缓存
-            if (_cachedBitmap != null && _cachedPath == imagePath)
-            {
-                return new BackgroundImageInfo
-                {
-                    Exists = true,
-                    IsValid = true,
-                    FilePath = imagePath,
-                    Bitmap = _cachedBitmap,
-                    Width = _cachedBitmap.PixelSize.Width,
-                    Height = _cachedBitmap.PixelSize.Height,
-                    AspectRatio = (double)_cachedBitmap.PixelSize.Width / _cachedBitmap.PixelSize.Height
-                };
-            }
-
-            // 加载图片
-            var bitmap = new Bitmap(imagePath);
-            var width = bitmap.PixelSize.Width;
-            var height = bitmap.PixelSize.Height;
-            var aspectRatio = (double)width / height;
-
-            // 校验比例
-            var ratioDiff = Math.Abs(aspectRatio - WindowAspectRatio) / WindowAspectRatio;
-            if (ratioDiff > AspectRatioTolerance)
-            {
-                bitmap.Dispose();
-                return new BackgroundImageInfo
-                {
-                    Exists = true,
-                    IsValid = false,
-                    FilePath = imagePath,
-                    Width = width,
-                    Height = height,
-                    AspectRatio = aspectRatio,
-                    ErrorMessage = $"图片比例不符合要求 ({aspectRatio:F2}，需要接近 {WindowAspectRatio:F2})"
-                };
-            }
-
-            // 缓存图片
-            _cachedBitmap = bitmap;
-            _cachedPath = imagePath;
-
-            Logger.Info($"[LauncherBackground] 背景图片加载成功: {imagePath} ({width}x{height}, 比例: {aspectRatio:F2})");
-
-            return new BackgroundImageInfo
-            {
-                Exists = true,
-                IsValid = true,
-                FilePath = imagePath,
-                Bitmap = bitmap,
-                Width = width,
-                Height = height,
-                AspectRatio = aspectRatio
-            };
-        }
-        catch (Exception ex)
-        {
-            Logger.Warn($"[LauncherBackground] 加载背景图片失败: {ex.Message}");
-            return new BackgroundImageInfo
-            {
-                Exists = false,
-                IsValid = false,
-                ErrorMessage = $"加载失败: {ex.Message}"
-            };
-        }
-    }
-
-    /// <summary>
-    /// 查找图片文件
-    /// </summary>
-    private static string? FindImageFile(string directory)
-    {
-        var extensions = new[] { ".png", ".jpg", ".jpeg", ".bmp", ".gif", ".webp" };
-
-        foreach (var ext in extensions)
-        {
-            var path = Path.Combine(directory, PictureFileName + ext);
-            if (File.Exists(path))
-            {
-                return path;
-            }
-        }
-
-        // 也尝试不带扩展名的匹配（如果文件本身就有扩展名）
-        var files = Directory.GetFiles(directory, PictureFileName + ".*");
-        foreach (var file in files)
-        {
-            var ext = Path.GetExtension(file).ToLowerInvariant();
-            if (extensions.Contains(ext))
-            {
-                return file;
-            }
-        }
-
-        return null;
-    }
-
-    /// <summary>
-    /// 清除缓存
-    /// </summary>
-    public static void ClearCache()
-    {
-        _cachedBitmap?.Dispose();
-        _cachedBitmap = null;
-        _cachedPath = null;
-    }
-}

LanMountainDesktop.Launcher/Infrastructure/ThemeService.cs

@@ -1,68 +0,0 @@
-using Avalonia;
-using Avalonia.Styling;
-using FluentAvalonia.Styling;
-
-namespace LanMountainDesktop.Launcher.Infrastructure;
-
-/// <summary>
-/// 主题服务，管理启动器的主题设置
-/// </summary>
-public static class ThemeService
-{
-    private static ThemeVariant _currentTheme = ThemeVariant.Light;
-    private static string _accentColor = "#0078D4";
-
-    /// <summary>
-    /// 获取当前主题
-    /// </summary>
-    public static ThemeVariant CurrentTheme => _currentTheme;
-
-    /// <summary>
-    /// 获取当前主题色
-    /// </summary>
-    public static string AccentColor => _accentColor;
-
-    /// <summary>
-    /// 应用主题设置
-    /// </summary>
-    public static void ApplyTheme(ThemeMode mode, string accentColor)
-    {
-        _currentTheme = mode switch
-        {
-            ThemeMode.Dark => ThemeVariant.Dark,
-            _ => ThemeVariant.Light
-        };
-        _accentColor = accentColor;
-
-        // 应用到当前应用程序
-        if (Application.Current is { } app)
-        {
-            app.RequestedThemeVariant = _currentTheme;
-        }
-    }
-
-    /// <summary>
-    /// 应用浅色主题
-    /// </summary>
-    public static void ApplyLightTheme(string accentColor)
-    {
-        ApplyTheme(ThemeMode.Light, accentColor);
-    }
-
-    /// <summary>
-    /// 应用深色主题
-    /// </summary>
-    public static void ApplyDarkTheme(string accentColor)
-    {
-        ApplyTheme(ThemeMode.Dark, accentColor);
-    }
-}
-
-/// <summary>
-/// 主题模式
-/// </summary>
-public enum ThemeMode
-{
-    Light,
-    Dark
-}