using UnityEngine;
using UnityEngine.Rendering;

namespace LuxWater
{
	[RequireComponent(typeof(Camera))]
	public class LuxWater_UnderwaterRenderingSlave : MonoBehaviour
	{
		private LuxWater_UnderWaterRendering waterrendermanager;

		private bool readyToGo;

		private static CommandBuffer cb_MaskSlave;

		private CameraEvent cameraEvent = CameraEvent.BeforeSkybox;

		public Camera cam;

		private void OnEnable()
		{
			cam = GetComponent<Camera>();
			cb_MaskSlave = new CommandBuffer();
			cb_MaskSlave.name = "Lux Water: Underwater Mask Slave";
			cam.AddCommandBuffer(cameraEvent, cb_MaskSlave);
			Invoke("GetWaterrendermanager", 0f);
		}

		private void OnDisable()
		{
			if (cb_MaskSlave != null && cam != null)
			{
				cam.RemoveCommandBuffer(cameraEvent, cb_MaskSlave);
			}
		}

		private void GetWaterrendermanager()
		{
			LuxWater_UnderWaterRendering instance = LuxWater_UnderWaterRendering.instance;
			if (instance != null)
			{
				waterrendermanager = instance;
				readyToGo = true;
			}
		}

		private void OnPreCull()
		{
			if (readyToGo)
			{
				waterrendermanager.RenderWaterMask(cam, SecondaryCameraRendering: true, cb_MaskSlave);
			}
		}

		[ImageEffectOpaque]
		private void OnRenderImage(RenderTexture src, RenderTexture dest)
		{
			if (readyToGo)
			{
				waterrendermanager.RenderUnderWater(src, dest, cam, SecondaryCameraRendering: true);
			}
			else
			{
				Graphics.Blit(src, dest);
			}
		}
	}
}