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

namespace BITKit.Rendering
{
	public class RenderWeaponsLastFeature : ScriptableRendererFeature
	{
		class RenderWeaponsLastPass : ScriptableRenderPass
		{
			private RenderQueueType renderQueueType;
			private FilteringSettings filteringSettings;

			public RenderWeaponsLastPass(RenderQueueType renderQueueType)
			{
				this.renderQueueType = renderQueueType;
				this.filteringSettings = new FilteringSettings(){renderQueueRange = RenderQueueRange.all};
			}

			public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
			{
				var cmd = CommandBufferPool.Get();
				context.ExecuteCommandBuffer(cmd);
				cmd.Clear();

				var sortFlags = renderingData.cameraData.defaultOpaqueSortFlags;
				var drawSettings = CreateDrawingSettings(ShaderTagId.none, ref renderingData, sortFlags);
				context.DrawRenderers(renderingData.cullResults, ref drawSettings, ref filteringSettings);

				context.ExecuteCommandBuffer(cmd);
				CommandBufferPool.Release(cmd);
			}
		}

		RenderWeaponsLastPass renderWeaponsLastPass;

		public override void Create()
		{
			renderWeaponsLastPass = new RenderWeaponsLastPass(RenderQueueType.Opaque);
		}

		public override void AddRenderPasses(ScriptableRenderer renderer, ref RenderingData renderingData)
		{
			renderer.EnqueuePass(renderWeaponsLastPass);
		}
	}

}