using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Rendering;
using UnityEngine.Rendering.HighDefinition;

public class PostProcessChangeValuesAtRuntime : MonoBehaviour
{
    [SerializeField] private Volume PostProcess;
    public bool IsUpdatingValues;
    private Bloom bloom;
    private LensDistortion lensDistortion;
    private ChromaticAberration chromaticAberration;
    private DepthOfField depthOfField;
    private Vignette vignette;
    private ColorAdjustments colorAdjustments;
    //private ColorGrading colorGrading;
    private float DefaultWeight;

    [Header("Post Process weight")]
    [SerializeField] private float weight;

    [Header("Bloom")]
    [SerializeField] private float bloomIntensity;

    [Header("Lens Distortion")]
    [SerializeField] private float lensDistortionIntensity;
    [SerializeField] private float centerX;
    [SerializeField] private float centerY;

    [Header("Chromatic Aberration")]
    [SerializeField] private float chromaticAberrationIntensity;
    [SerializeField] private bool chromaticAberrationActive;

    [Header("Depth Of Field")]
    [SerializeField] private float focusDistance;
    [SerializeField] private float aperature;
    [SerializeField] private float focalLength;
    [SerializeField] private float nearMaxRadiusBlur;
    [SerializeField] private float farMaxRadiusBlur;
    [SerializeField] private bool depthOfFieldActive;

    [Header("Color Grading")]
    [SerializeField] private float liftRed;
    [SerializeField] private float liftGreen;
    [SerializeField] private float liftBlue;
    [SerializeField] private float Lift;

    [Header("Vignette")]
    [SerializeField] private Color vignetteColor;
    [SerializeField] private float vignetteIntensity;

    [Header("Color Adjustments")]
    [SerializeField] private float postExposure;

    //private static PostProcessChangeValuesAtRuntime _instance;
    //public static PostProcessChangeValuesAtRuntime GetInstance() { return _instance; }


    private void Awake()
    {
        //if (!_instance)
        //{
        //    _instance = this;
        //}
        if (PostProcess == null)
        {
            PostProcess = GetComponent<Volume>();
        }

        DefaultWeight = PostProcess.weight;

        PostProcess.profile.TryGet(out bloom);
        PostProcess.profile.TryGet(out lensDistortion);
        PostProcess.profile.TryGet(out chromaticAberration);
        PostProcess.profile.TryGet(out depthOfField);
        PostProcess.profile.TryGet(out vignette);
        PostProcess.profile.TryGet(out colorAdjustments);
        //PostProcess.profile.TryGetSettings(out colorGrading);
    }
    // Start is called before the first frame update
    void Start()
    {
   
    }

    // Update is called once per frame
    void Update()
    {
        if (IsUpdatingValues)
        {
            PostProcess.weight = weight;

            #region Bloom
            if (bloom != null)
            {
                bloom.intensity.value = bloomIntensity;
            }
            #endregion

            #region Lens Distorition
            if (lensDistortion != null)
            {
                lensDistortion.intensity.value = lensDistortionIntensity;
                lensDistortion.xMultiplier.value = centerX;
                lensDistortion.yMultiplier.value = centerY;
            }
            #endregion

            #region Chromatic Aberration
            if (chromaticAberration != null)
            {
                chromaticAberration.intensity.value = chromaticAberrationIntensity;
                chromaticAberration.active = chromaticAberrationActive;
            }
            #endregion

            #region Depth Of Field
            //depthOfField.focusDistance.value = focusDistance;
            //depthOfField.aperture.value = aperature;
            //depthOfField.focalLength.value = focalLength;
            depthOfField.active = depthOfFieldActive;
            depthOfField.nearMaxBlur = nearMaxRadiusBlur;
            depthOfField.farMaxBlur = farMaxRadiusBlur;
            #endregion

            #region Color Grading
            //colorGrading.lift.value = new Vector4(liftRed, liftGreen, liftBlue, Lift);
            //Debug.Log(colorGrading.lift.value);
            #endregion

            #region Vignette
            if (vignette != null)
            {
                vignette.intensity.value = vignetteIntensity;
                vignette.color.value = vignetteColor;
            }
            #endregion

            #region Color Adjustments
            if (colorAdjustments != null)
            {
                colorAdjustments.postExposure.value = postExposure;
            }
            #endregion
        }
    }
    public void RestoreValues()
    {
        weight = DefaultWeight;

        bloomIntensity = 0f;
        lensDistortionIntensity = 0f;
        centerX = 0f;
        centerY = 0f;
        chromaticAberrationIntensity = 0f;

        focusDistance = 0f;
        aperature = 0.1f;
        focalLength = 0f;
        nearMaxRadiusBlur = 0f;
        farMaxRadiusBlur = 0f;
        depthOfFieldActive = false;

        vignetteIntensity = 0f;

        postExposure = 0f;
    }
}