using UnityEngine.Rendering;
using UnityEngine.Events;
using UnityEditor;
using UnityEngine;
using System.Collections;
using UnityEngine.TestTools;
using UnityEngine.Experimental.Rendering.HDPipeline;

namespace UnityEngine.Experimental.Rendering
{
    public class SetupSceneForRenderPipelineTest : MonoBehaviour, IMonoBehaviourTest
    {
        private RenderPipelineAsset m_OriginalAsset;
        public RenderPipelineAsset[] renderPipelines;
        public Camera cameraToUse;
        public bool hdr = false;
        public int msaaSamples = 1;

        public int width = 1280;
        public int height = 720;

        public UnityEvent thingToDoBeforeTest;

        [Header("Run Play Mode for test")]
        public int forcedFrameRate = 60;
        public int waitForFrames = 30;
        int waitedFrames = 0;
        bool _readyForCapture = false;
        public bool readyForCapture {  get { return _readyForCapture; } }

        public void Update()
        {
            if (waitedFrames < waitForFrames)
            {
                ++waitedFrames;
            }
            else if (!_readyForCapture)
            {
                _readyForCapture = true;
            }
        }

        public void Setup()
        {
            m_OriginalAsset = GraphicsSettings.renderPipelineAsset;
            Setup(0);
        }

        public void Setup(int index)
        {
            if (m_OriginalAsset != renderPipelines[index])
            {
                //Debug.Log("Set Render Pipeline: "+ renderPipelines[index]);
                GraphicsSettings.renderPipelineAsset = renderPipelines[index];

                // Update Camera Frame Settings (HDRP)
                HDAdditionalCameraData additionalCameraData = cameraToUse.gameObject.GetComponent<HDAdditionalCameraData>();
                if (additionalCameraData != null)
                {
                    HDRenderPipelineAsset m_Asset = (HDRenderPipelineAsset)renderPipelines[index];
                    additionalCameraData.UpdateDirtyFrameSettings(true, m_Asset.GetFrameSettings());
                }
            }
        }

        public void TearDown()
        {
            if (GraphicsSettings.renderPipelineAsset != m_OriginalAsset)
            {
                GraphicsSettings.renderPipelineAsset = m_OriginalAsset;
            }

            //EditorApplication.isPaused = false;
            //EditorApplication.isPlaying = false;
        }

        public bool IsTestFinished
        {
            get
            {
                return _readyForCapture;
            }
        }
    }
}