using UnityEngine;
using System.Collections;
using UnityEngine.Rendering;
using System.Collections.Generic;
using System;

using UnityEditor;

//using EditorGUIUtility=UnityEditor.EditorGUIUtility;

namespace UnityEngine.ScriptableRenderLoop
{
	[CustomEditor(typeof(HDRenderLoop))]
	public class HDRenderLoopInspector : Editor
	{
		private class Styles
		{
			public readonly GUIContent debugParameters = new GUIContent("Debug Parameters");
			public readonly GUIContent materialDebugMode = new GUIContent("Material Debug Mode", "Display various properties of Materials.");
			public readonly GUIContent gBufferDebugMode = new GUIContent("GBuffer Debug Mode", "Display various properties of contained in the GBuffer.");

			public readonly GUIContent[] materialDebugStrings = {	new GUIContent("None"),
																	new GUIContent("Diffuse Color"),
																	new GUIContent("Normal"),
																	new GUIContent("Depth"),
																	new GUIContent("Ambient Occlusion"),
																	new GUIContent("Specular Color"),
																	new GUIContent("Specular Occlusion"),
																	new GUIContent("Smoothness"),
																	new GUIContent("MaterialId"),
																	new GUIContent("UV0"),
																	new GUIContent("Tangent"),
																	new GUIContent("Bitangent")
																};
			public readonly int[] materialDebugValues = {	(int)HDRenderLoop.MaterialDebugMode.None,
															(int)HDRenderLoop.MaterialDebugMode.DiffuseColor,
															(int)HDRenderLoop.MaterialDebugMode.Normal,
															(int)HDRenderLoop.MaterialDebugMode.Depth,
															(int)HDRenderLoop.MaterialDebugMode.AmbientOcclusion,
															(int)HDRenderLoop.MaterialDebugMode.SpecularColor,
															(int)HDRenderLoop.MaterialDebugMode.SpecularOcclustion,
															(int)HDRenderLoop.MaterialDebugMode.Smoothness,
															(int)HDRenderLoop.MaterialDebugMode.MaterialId,
															(int)HDRenderLoop.MaterialDebugMode.UV0,
															(int)HDRenderLoop.MaterialDebugMode.Tangent,
															(int)HDRenderLoop.MaterialDebugMode.Bitangent
														};
			public readonly GUIContent[] gBufferDebugStrings = {	new GUIContent("None"),
																	new GUIContent("Diffuse Color"),
																	new GUIContent("Normal"),
																	new GUIContent("Depth"),
																	new GUIContent("Baked Diffuse"),
																	new GUIContent("Specular Color"),
																	new GUIContent("Specular Occlusion"),
																	new GUIContent("Smoothness"),
																	new GUIContent("MaterialId")
																};
			public readonly int[] gBufferDebugValues = {	(int)HDRenderLoop.GBufferDebugMode.None,
															(int)HDRenderLoop.GBufferDebugMode.DiffuseColor,
															(int)HDRenderLoop.GBufferDebugMode.Normal,
															(int)HDRenderLoop.GBufferDebugMode.Depth,
															(int)HDRenderLoop.GBufferDebugMode.BakedDiffuse,
															(int)HDRenderLoop.GBufferDebugMode.SpecularColor,
															(int)HDRenderLoop.GBufferDebugMode.SpecularOcclustion,
															(int)HDRenderLoop.GBufferDebugMode.Smoothness,
															(int)HDRenderLoop.GBufferDebugMode.MaterialId
														};
		}

		private static Styles s_Styles = null;
		private static Styles styles { get { if (s_Styles == null) s_Styles = new Styles(); return s_Styles; } }

		public override void OnInspectorGUI()
		{
			HDRenderLoop renderLoop = target as HDRenderLoop;
			if(renderLoop)
			{
				HDRenderLoop.DebugParameters debugParameters = renderLoop.debugParameters;

				EditorGUILayout.LabelField(styles.debugParameters);
				EditorGUI.indentLevel++;
				EditorGUI.BeginChangeCheck();
				debugParameters.gBufferDebugMode = (HDRenderLoop.GBufferDebugMode)EditorGUILayout.IntPopup(styles.gBufferDebugMode, (int)debugParameters.gBufferDebugMode, styles.gBufferDebugStrings, styles.gBufferDebugValues);
				debugParameters.materialDebugMode = (HDRenderLoop.MaterialDebugMode)EditorGUILayout.IntPopup(styles.materialDebugMode, (int)debugParameters.materialDebugMode, styles.materialDebugStrings, styles.materialDebugValues);
				if(EditorGUI.EndChangeCheck())
				{
					EditorUtility.SetDirty(renderLoop); // Repaint
				}
				EditorGUI.indentLevel--;
			}
		}
	}
}