msh viewport initial

NResUI/Rendering/Viewport/Msh/MshViewportLoadResult.cs

@@ -0,0 +1,31 @@
+namespace NResUI.Rendering.Viewport.Msh;
+
+public sealed class MshViewportLoadResult
+{
+    public bool IsSuccess { get; }
+    public string? Error { get; }
+    public string? SourcePath { get; }
+    public IReadOnlyList<ViewportPiece> Pieces { get; }
+
+    private MshViewportLoadResult(
+        bool isSuccess,
+        string? error,
+        string? sourcePath,
+        IReadOnlyList<ViewportPiece> pieces)
+    {
+        IsSuccess = isSuccess;
+        Error = error;
+        SourcePath = sourcePath;
+        Pieces = pieces;
+    }
+
+    public static MshViewportLoadResult Success(string sourcePath, IReadOnlyList<ViewportPiece> pieces)
+    {
+        return new MshViewportLoadResult(true, null, sourcePath, pieces);
+    }
+
+    public static MshViewportLoadResult Failure(string error, string? sourcePath = null)
+    {
+        return new MshViewportLoadResult(false, error, sourcePath, Array.Empty<ViewportPiece>());
+    }
+}