using UnityEngine;
using DG.Tweening;
using UnityEngine.Rendering;
using UnityEngine.Rendering.Universal;

public class ScreenEffectManager : MonoBehaviour
{
    public static ScreenEffectManager Instance { get; private set; }

    public Volume saturation;

    private ColorAdjustments colorAdjustments;

    private void Awake()
    {
        // 确保单例模式
        if (Instance != null && Instance != this)
        {
            Destroy(gameObject);
        }
        else
        {
            Instance = this;
            DontDestroyOnLoad(gameObject); // 可选：保持在场景加载之间
        }
    }

    private void Start()
    {
        // 获取 ColorAdjustments 设置
        if (saturation.profile.TryGet(out colorAdjustments))
        {
            Debug.Log("ColorAdjustments is available.");
        }
        else
        {
            Debug.LogError("ColorAdjustments settings not found in PostProcessProfile.");
        }
    }

    // 动态调整饱和度
    public Tween TweenSaturation(float targetSaturation, float duration)
    {
        if (colorAdjustments != null)
        {
            // 使用 DOTween 创建一个饱和度过渡动画
            Tween tween = DOTween.To(
                () => colorAdjustments.saturation.value, // 获取当前饱和度值
                x => colorAdjustments.saturation.value = x, // 设置新的饱和度值
                targetSaturation, // 目标饱和度值
                duration // 过渡持续时间
            );

            return tween; // 返回 Tween 对象
        }
        else
        {
            Debug.LogError("ColorAdjustments settings not found.");
            return null; // 如果找不到设置，返回 null
        }
    }
}