using System;
using System.Text;
using ClearCanvas.Common;
using ClearCanvas.Desktop;
using ClearCanvas.Desktop.Actions;
using ClearCanvas.Dicom;
using ClearCanvas.Dicom.Iod;
using ClearCanvas.ImageViewer;
using ClearCanvas.ImageViewer.BaseTools;
using ClearCanvas.ImageViewer.Graphics;
using ClearCanvas.ImageViewer.Imaging;
using ClearCanvas.ImageViewer.PresentationStates;
using ClearCanvas.ImageViewer.PresentationStates.Dicom;

namespace Nullstack.ClearCanvas.ImageViewerTools {
	[MenuAction("save", "global-menus/mnDebug/mnImageViewer/mnDumpDicomSceneGraph", "Dump")]
	[ExtensionOf(typeof(ImageViewerToolExtensionPoint))]
	internal class DicomGraphicsPlaneDumpTool : ImageViewerTool {
		public void Dump()
		{
			StringBuilder sb  = new StringBuilder();
			sb.AppendLine();

			try
			{
				DicomGraphicsPlane dgp = DicomGraphicsPlane.GetDicomGraphicsPlane((IDicomPresentationImage) base.SelectedPresentationImage, false);
				Dump(dgp, sb, string.Empty);
			}
			catch(Exception ex)
			{
				sb.AppendLine(string.Format("Dump Failed with Exception {0}", ex.Message));
			}

			Platform.Log(LogLevel.Info, "The following three FATAL-level log entries are for debugging purposes. It does not indicate an error.");
			Platform.Log(LogLevel.Fatal, "BEGIN DUMPING DICOM SCENE GRAPH");
			Platform.Log(LogLevel.Fatal, sb.ToString());
			Platform.Log(LogLevel.Fatal, "END DUMPING DICOM SCENE GRAPH");
			Platform.Log(LogLevel.Info, "The preceding three FATAL-level log entries were for debugging purposes. It does not indicate an error.");
		}

		private void Dump(DicomGraphicsPlane dgp, StringBuilder sb, string indent)
		{
			if(dgp == null)
			{
				sb.AppendLine(string.Format("{0}DicomGraphicsPlane: null", indent));
			}
			else
			{
				string nextIndent = indent + "+--";
				sb.AppendLine(string.Format("{0}DicomGraphicsPlane", indent));
				sb.AppendLine(string.Format("{0}Shutters", nextIndent));
				Dump(dgp.Shutters as IGraphic, sb, nextIndent + "+--");
				sb.AppendLine(string.Format("{0}Layers", nextIndent));
				Dump(dgp.Layers as IGraphic, sb, nextIndent + "+--");
			}
		}

		private void Dump(IGraphic g, StringBuilder sb, string indent)
		{
			if (g is OverlayPlaneGraphic)
			{
				sb.AppendLine(string.Format("{0}OVERLAY: {1}", indent, ((OverlayPlaneGraphic) g).Description));
				sb.AppendLine(string.Format("{0}Source={1} #{2}", indent + "+--", ((OverlayPlaneGraphic) g).Source, ((OverlayPlaneGraphic) g).Index));
				sb.AppendLine(string.Format("{0}Group=0x{1:x4}", indent + "+--", ((OverlayPlaneGraphic) g).Index*2 + 0x6000));
				sb.AppendLine(string.Format("{0}Visible={1}", indent + "+--", g.Visible));
			}
			else if (g is IShutterGraphic)
			{
				sb.AppendLine(string.Format("{0}SHUTTER: {1}", indent, g.GetType().Name));
				sb.AppendLine(string.Format("{0}Visible={1}", indent + "+--", g.Visible));
			}
			else if (g is ILayer)
			{
				sb.AppendLine(string.Format("{0}LAYER: {1}", indent, ((ILayer) g).Id));
				sb.AppendLine(string.Format("{0}Visible={1}", indent + "+--", g.Visible));
				foreach (IGraphic graphic in ((ILayer) g).Graphics)
					Dump(graphic, sb, indent + "+--");
			}
			else if (g is IDicomGraphicsPlaneShutters)
			{
				foreach (IGraphic graphic in ((CompositeGraphic) g).Graphics)
					Dump(graphic, sb, indent);
			}
			else if (g is IDicomGraphicsPlaneLayers)
			{
				foreach (IGraphic graphic in ((CompositeGraphic) g).Graphics)
					Dump(graphic, sb, indent);
			}
			else if (g == null)
			{
				sb.AppendLine(string.Format("{0}null", indent));
			}
			else
			{
				sb.AppendLine(string.Format("{0}{1}", indent, g.GetType().Name));
				sb.AppendLine(string.Format("{0}Visible={1}", indent + "+--", g.Visible));
			}
		}
	}
}