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

namespace Ashwild.Settings
{
    [RequireComponent(typeof(Volume))]
    public class BrightnessController : MonoBehaviour
    {
        [SerializeField] private Volume volume;

        private ColorAdjustments colorAdjustments;

        private void Awake()
        {
            if (volume == null) volume = GetComponent<Volume>();
            if (volume != null && volume.profile != null)
                volume.profile.TryGet(out colorAdjustments);
        }

        private void OnEnable()
        {
            if (SettingsManager.Instance != null)
                SettingsManager.Instance.onSettingsChanged.AddListener(Apply);
            Apply();
        }

        private void OnDisable()
        {
            if (SettingsManager.Instance != null)
                SettingsManager.Instance.onSettingsChanged.RemoveListener(Apply);
        }

        private void Apply()
        {
            if (colorAdjustments == null || SettingsManager.Instance == null) return;
            colorAdjustments.postExposure.value = (SettingsManager.Instance.Brightness - 1f) * 2f;
        }
    }
}