using Grasshopper2;
using Grasshopper2.Doc;
using Grasshopper2.Framework;
using Grasshopper2.Parameters;
using Grasshopper2.Parameters.Special;
using Grasshopper2.UI;
using Grasshopper2.UI.Canvas;

using GH2Component = Grasshopper2.Components.Component;

namespace RhMcp.Resources;

public static class GH2_Utils
{

  public static bool TryGetDoc(RhinoDoc rhDoc, out Document doc)
  {
    doc = default!;

    Editor editor = Editor.Instance;
    if (editor is null)
    {
      RhinoApp.RunScript(rhDoc.RuntimeSerialNumber, "_G2", true);
      editor = Editor.Instance;
      if (editor is null) return false;
    }

    doc = editor.Canvas.Document;

    return doc is not null;
  }

  public static bool TryLoadDocument(RhinoDoc rhDoc, string path)
  {
    if (!TryGetDoc(rhDoc, out _)) return false;
    return Editor.Instance.Documents.TryOpenDocument(path, OpenDocumentOptions.Default);
  }

  public static void Redraw()
  {
    var canvas = Editor.Instance?.Canvas;
    if (canvas is null) return;
    canvas.Invalidate();
  }

  public static string ClassifyKind(Type t)
  {
    if (t is null) return "Other";
    if (typeof(NumberSliderObject).IsAssignableFrom(t)) return "Slider";
    if (typeof(GH2Component).IsAssignableFrom(t)) return "Component";
    if (typeof(IParameter).IsAssignableFrom(t)) return "Param";
    return "Other";
  }

  public static bool IsValueSource(IDocumentObject obj) =>
    obj.GetType().Namespace?.Contains("Parameters.Special") ?? false;

}