using XCEngine;
using XCEngine.Rendering;
using XCEngine.Rendering.Universal;

namespace ProjectScripts
{
    public sealed class ProjectPostProcessColorScalePass
        : ScriptableRenderPass
    {
        public ProjectPostProcessColorScalePass()
        {
            renderPassEvent =
                RenderPassEvent.BeforeRenderingPostProcessing;
        }

        protected override bool RecordRenderGraph(
            ScriptableRenderContext context,
            RenderingData renderingData)
        {
            return context != null &&
                   renderingData != null &&
                   renderingData.isPostProcessStage &&
                   RecordColorScaleFullscreenPass(
                       context,
                       new Vector4(1.15f, 0.95f, 1.05f, 1.0f));
        }
    }

    public sealed class ProjectPostProcessColorScaleFeature
        : ScriptableRendererFeature
    {
        private ProjectPostProcessColorScalePass m_pass;

        public override void Create()
        {
            m_pass =
                new ProjectPostProcessColorScalePass();
        }

        public override void ConfigureCameraFramePlan(
            ScriptableRenderPipelinePlanningContext context)
        {
            if (context == null ||
                context.IsStageRequested(
                    CameraFrameStage.PostProcess))
            {
                return;
            }

            context.RequestFullscreenStage(
                CameraFrameStage.PostProcess,
                CameraFrameColorSource.MainSceneColor);
        }

        public override void AddRenderPasses(
            ScriptableRenderer renderer,
            RenderingData renderingData)
        {
            if (renderer == null ||
                renderingData == null ||
                !renderingData.isPostProcessStage)
            {
                return;
            }

            if (m_pass == null)
            {
                Create();
            }

            renderer.EnqueuePass(m_pass);
        }
    }

    public sealed class ProjectUniversalFeaturePipelineAsset
        : UniversalRenderPipelineAsset
    {
        public ProjectUniversalFeaturePipelineAsset()
        {
            rendererDataList = new ScriptableRendererData[]
            {
                new UniversalRendererData
                {
                    rendererFeatures = new ScriptableRendererFeature[]
                    {
                        new ProjectPostProcessColorScaleFeature()
                    }
                }
            };
        }
    }
}