using UnityEditor;
using UnityEngine;
using System.Collections;

[CustomEditor (typeof(CameraMotionBlur))]
class CameraMotionBlurEditor : Editor 
{	
	SerializedObject serObj;	
		
  SerializedProperty filterType;
  SerializedProperty preview;
  SerializedProperty previewScale;
  SerializedProperty movementScale;
  SerializedProperty jitter;
  SerializedProperty rotationScale;
  SerializedProperty maxVelocity;
  SerializedProperty minVelocity;
    SerializedProperty velocityScale;
  SerializedProperty velocityDownsample;
  SerializedProperty noiseTexture;
  SerializedProperty showVelocity;
  SerializedProperty showVelocityScale;
  SerializedProperty excludeLayers;
  //SerializedProperty dynamicLayers;

	void OnEnable (){
		serObj = new SerializedObject (target);
		
    filterType = serObj.FindProperty ("filterType");

    preview = serObj.FindProperty ("preview");
    previewScale = serObj.FindProperty ("previewScale");

    movementScale = serObj.FindProperty ("movementScale");
    rotationScale = serObj.FindProperty ("rotationScale");

    maxVelocity = serObj.FindProperty ("maxVelocity");
    minVelocity = serObj.FindProperty ("minVelocity");

    serObj.FindProperty ("maxNumSamples");
    jitter = serObj.FindProperty ("jitter");

    excludeLayers = serObj.FindProperty ("excludeLayers");
    //dynamicLayers = serObj.FindProperty ("dynamicLayers");

    velocityScale = serObj.FindProperty ("velocityScale");
    velocityDownsample = serObj.FindProperty ("velocityDownsample");

    noiseTexture = serObj.FindProperty ("noiseTexture");
	}


    public override void OnInspectorGUI (){         
    serObj.Update ();
        	    	
    EditorGUILayout.LabelField("Simulates camera based motion blur", EditorStyles.miniLabel);

    EditorGUILayout.PropertyField (filterType, new GUIContent("Technique"));  	
    if (filterType.enumValueIndex == 3 && !(target as CameraMotionBlur).Dx11Support()) {
      EditorGUILayout.HelpBox("DX11 mode not supported (need shader model 5)", MessageType.Info);      
    }          
    EditorGUILayout.PropertyField (velocityScale, new GUIContent(" Velocity Scale"));   
    if(filterType.enumValueIndex >= 2) {
      EditorGUILayout.LabelField(" Tile size used during reconstruction filter:", EditorStyles.miniLabel);      
      EditorGUILayout.PropertyField (maxVelocity, new GUIContent("  Velocity Max"));  
    }
    else
      EditorGUILayout.PropertyField (maxVelocity, new GUIContent(" Velocity Max"));       
    EditorGUILayout.PropertyField (minVelocity, new GUIContent(" Velocity Min"));   

    EditorGUILayout.Separator ();

    EditorGUILayout.LabelField("Technique Specific");

    if(filterType.enumValueIndex == 0) {
      // portal style motion blur
      EditorGUILayout.PropertyField (rotationScale, new GUIContent(" Camera Rotation"));
      EditorGUILayout.PropertyField (movementScale, new GUIContent(" Camera Movement"));
    }
    else {
      // "plausible" blur or cheap, local blur
      EditorGUILayout.PropertyField (excludeLayers, new GUIContent(" Exclude Layers"));
      EditorGUILayout.PropertyField (velocityDownsample, new GUIContent(" Velocity Downsample"));
      velocityDownsample.intValue = velocityDownsample.intValue < 1 ? 1 : velocityDownsample.intValue;
      if(filterType.enumValueIndex >= 2) { // only display jitter for reconstruction
        EditorGUILayout.PropertyField (noiseTexture, new GUIContent(" Sample Jitter"));
        EditorGUILayout.PropertyField (jitter, new GUIContent("  Jitter Strength"));
      }
    }

    EditorGUILayout.Separator ();

    EditorGUILayout.PropertyField (preview, new GUIContent("Preview"));
    if (preview.boolValue)
      EditorGUILayout.PropertyField (previewScale, new GUIContent(""));    
        	
    serObj.ApplyModifiedProperties();
    }
}