feat: add GetGamePath (xbox only)

src/dumper/utils.cs

@@ -0,0 +1,35 @@
+using Microsoft.Win32;
+
+internal static class Utils
+{
+    public static string? GetGamePath()
+    {
+        string? path;
+        path = TryGetXboxPath();
+        return path;
+
+        /*
+         * to-do:
+         *  implement steam and epic
+         */
+    }
+
+    private static string? TryGetXboxPath()
+    {
+        const string keyPath = @"Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Repository\Packages";
+        using RegistryKey? key = Registry.CurrentUser.OpenSubKey(keyPath);
+
+        if (key == null) return null;
+
+        string? match = key.GetSubKeyNames().FirstOrDefault(n => n.StartsWith(Constants.PackageName, StringComparison.OrdinalIgnoreCase));
+        if (match == null) return null;
+
+        using RegistryKey? subKey = key.OpenSubKey(match);
+        if (subKey == null) return null;
+
+        object? pkgRootFolder = subKey.GetValue("PackageRootFolder");
+        if (pkgRootFolder == null) return null;
+
+        return pkgRootFolder.ToString();
+    }
+}