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

namespace X.Rendering.Feature
{
    public class AutoExposureVolumeProfile : VolumeComponent, IPostProcessComponent
    {
        [Tooltip("How many frames it takes to recalculate the average brightness. Decreasing this value can affect performance.")]
        public ClampedIntParameter framesPerCompute = new(5, 1, 20);

        [Space]
        [Tooltip("Limits the maximum brightness for very bright objects to work properly with bloom and other effects")]
        public FloatParameter brightnessLimit = new(15f);

        [Tooltip("For reinhard tonemapping")]
        public FloatParameter whitePoint = new(3f);

        [Tooltip("How much an individual pixel's exposure can vary from the original value.")]
        public FloatRangeParameter exposureRange = new(new Vector2(-2.5f, 0.6f), -6.0f, 6.0f);

        [Space]
        [Tooltip("How quickly the exposure increases")]
        public FloatParameter increaseSpeed = new(5f);

        [Tooltip("How quickly the exposure decreases")]
        public FloatParameter decreaseSpeed = new(5f);

        public bool IsActive() => framesPerCompute.overrideState;

        public bool IsTileCompatible()
        {
            return true;
        }
    }
}