using Echovoid.Runtime.Behavior.Rendering;
using UnityEngine;
using UnityEngine.Rendering;
using UnityEngine.Rendering.Universal;

namespace SLSFramework.Rendering.PostProcessing
{
    [System.Serializable, VolumeComponentMenu("Custom/Speed Lines")]
    public class SpeedLines : ScriptablePostProcessorVolume
    {
        public override CustomPostProcessInjectionPoint InjectionPoint => CustomPostProcessInjectionPoint.AfterPostProcess;
        public override int OrderInInjectionPoint => 20;

        [Header("Effect Color & Intensity")]
        public ColorParameter color = new(new Color(1f, 1f, 1f, 0.5f), true, true, true);

        [Header("Lines")]
        public FloatParameter speedLinesTiling = new(200f);
        public ClampedFloatParameter speedLinesRadialScale = new(0.1f, 0f, 10f);
        public FloatParameter speedLinesPower = new(0f);
        public ClampedFloatParameter speedLinesRemap = new(1f, 0f, 1f);
        public FloatParameter speedLinesAnimation = new(3f);

        [Header("Radial Mask")]
        public ClampedFloatParameter maskScale = new(1f, 0f, 2f);
        public ClampedFloatParameter maskHardness = new(0f, 0f, 1f);
        public FloatParameter maskPower = new(5f);
        
        protected override string GetShaderName() => "Hidden/Custom/SpeedLines";
        public override bool IsActive() => speedLinesRemap.value < 1f || color.value.a > 0f;
        
        public override void Render(CommandBuffer cmd, ref RenderingData renderingData, RTHandle source, RTHandle target)
        {
            if (material == null) return;
            
            material.SetColor(InternalShaderHelpers.ID._SpeedLinesColour, color.value);
            material.SetFloat(InternalShaderHelpers.ID._SpeedLinesTiling, speedLinesTiling.value);
            material.SetFloat(InternalShaderHelpers.ID._SpeedLinesRadialScale, speedLinesRadialScale.value);
            material.SetFloat(InternalShaderHelpers.ID._SpeedLinesPower, speedLinesPower.value);
            material.SetFloat(InternalShaderHelpers.ID._SpeedLinesRemap, speedLinesRemap.value);
            material.SetFloat(InternalShaderHelpers.ID._SpeedLinesAnimation, speedLinesAnimation.value);
            material.SetFloat(InternalShaderHelpers.ID._MaskScale, maskScale.value);
            material.SetFloat(InternalShaderHelpers.ID._MaskHardness, maskHardness.value);
            material.SetFloat(InternalShaderHelpers.ID._MaskPower, maskPower.value);

            Blitter.BlitCameraTexture(cmd, source, target, material, 0);
        }
    }
}