using UnityEngine;
using UnityEngine.Experimental.Rendering;
using UnityEngine.Rendering;
using UnityEngine.Rendering.Universal;
using UnityEngine.Serialization;

namespace Fort23.Mono.Test
{
    [System.Serializable]
    public class InterceptGamePass : ScriptableRenderPass
    {
        private static bool isIntercept;

        // private RenderTextureDescriptor RenderTextureDescriptor;
        private static RenderTexture RenderTexture;


        private const string m_ProfilerTag = "Intercept";

        
        public RenderTargetHandle m_Destination;

        private static System.Action _finish;

        private static int count;
        private RenderTextureDescriptor cameraTextureDescriptor;
        private static System.Action<ScriptableRenderContext, RenderingData, RenderTexture, RenderTargetIdentifier, RenderTextureDescriptor> OnExecuteCallBack;

        private ScriptableRenderer renderer;
        public static void SetRenderTexture(RenderTexture renderTexture, System.Action finish,
            System.Action<ScriptableRenderContext, RenderingData, RenderTexture, RenderTargetIdentifier, RenderTextureDescriptor> executeCallBack = null)
        {
            // Debug.Log("开始准备背景界面");
            // finish?.Invoke();
            // return;
            RenderTexture = renderTexture;
            _finish+= finish;
            isIntercept = true;
            OnExecuteCallBack = executeCallBack;
            count = 1;
        }

        public InterceptGamePass(RenderPassEvent evt)
        {
            renderPassEvent = evt;
        }

        public void Setup(ScriptableRenderer renderer)
        {
            this.renderer = renderer;
        }

        public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
        {
            if (isIntercept)
            {
                // Debug.Log("执行背景背景界面");
                count--;
                // 执行拷贝命令
                CommandBuffer cmd = CommandBufferPool.Get(m_ProfilerTag);
                // var descriptor = RenderTextureDescriptor;
                // descriptor.depthBufferBits = 0;
                //
                // RenderTargetIdentifier renderTargetIdentifier = new RenderTargetIdentifier(RenderTexture);
                // m_Destination.Init(renderTargetIdentifier);
                
                cmd.Blit(renderer.cameraColorTargetHandle, RenderTexture);

               
                context.ExecuteCommandBuffer(cmd);
                CommandBufferPool.Release(cmd);
                OnExecuteCallBack?.Invoke(context, renderingData, RenderTexture, renderer.cameraColorTargetHandle, cameraTextureDescriptor);
            }
        }

        public override void OnFinishCameraStackRendering(CommandBuffer cmd)
        {
            // if (m_Destination != RenderTargetHandle.CameraTarget)
            // {
            //     // m_Destination = RenderTargetHandle.CameraTarget;
            // }

            if (count <= 0&&isIntercept)
            {
                // Debug.Log("完成背景界面");
                isIntercept = false;
                _finish?.Invoke();
                _finish = null;
            }
        }

        public override void Configure(CommandBuffer cmd, RenderTextureDescriptor cameraTextureDescriptor)
        {
            this.cameraTextureDescriptor = cameraTextureDescriptor;
        }
    }
}