using System;
using UFS2.Gameplay;
using UnityEngine;
using UnityEngine.Rendering.PostProcessing;

public class PostProcessingController : MonoBehaviour
{
	[SerializeField]
	private PostProcessVolume _PP_Land;

	[SerializeField]
	private PostProcessVolume _PP_Underwater;

	[SerializeField]
	private AnimationCurve _LensCenterXCurve;

	[SerializeField]
	private AnimationCurve _LensCenterYCurve;

	private bool isUnderwater;

	public static event Action OnPPChange;

	private void OnEnable()
	{
		GameCameraController.OnEnterInToWater += ChangeToUnderWaterPP;
		GameCameraController.OnExitFromWater += ChangeToNormalPP;
		SmoothFollowUnderwater.OnCameraTransformUpdate += UpdateUnderwaterPP;
		FreeCamera.OnEnterUnderwater += ChangeToUnderWaterPP;
		FreeCamera.OnExitUnderwater += ChangeToNormalPP;
	}

	private void OnDisable()
	{
		GameCameraController.OnEnterInToWater -= ChangeToUnderWaterPP;
		GameCameraController.OnExitFromWater -= ChangeToNormalPP;
		SmoothFollowUnderwater.OnCameraTransformUpdate -= UpdateUnderwaterPP;
		FreeCamera.OnEnterUnderwater -= ChangeToUnderWaterPP;
		FreeCamera.OnExitUnderwater -= ChangeToNormalPP;
	}

	private void ChangeToUnderWaterPP()
	{
		ChangePP(isUnderwater: true);
	}

	private void ChangeToNormalPP()
	{
		ChangePP(isUnderwater: false);
	}

	private void ChangePP(bool isUnderwater)
	{
		PostProcessingController.OnPPChange?.Invoke();
		_PP_Underwater.gameObject.SetActive(isUnderwater);
		_PP_Land.gameObject.SetActive(!isUnderwater);
	}

	private void UpdateUnderwaterPP(Transform target)
	{
		_PP_Underwater.sharedProfile.TryGetSettings<DepthOfField>(out var outSetting);
		float value = Vector3.Distance(Vector3.zero, target.localPosition);
		outSetting.focusDistance.value = value;
	}
}