using System;
using System.Reflection;
using UnityEngine;

namespace DeepSky.Haze;

[Serializable]
[AddComponentMenu("")]
public class DS_HazeContextItem
{
	public enum Multiplier
	{
		OneTenth,
		OneFifth,
		OneHalf,
		One,
		Two,
		Five,
		Ten,
		OneHundredth
	}

	[SerializeField]
	public string m_Name;

	[SerializeField]
	public AnimationCurve m_Weight;

	[SerializeField]
	[Range(0f, 8f)]
	public float m_AirScatteringScale = 1f;

	[SerializeField]
	public Multiplier m_AirScatteringMultiplier = Multiplier.One;

	[SerializeField]
	[Range(0.0001f, 0.1f)]
	public float m_AirDensityHeightFalloff = 0.001f;

	[SerializeField]
	[Range(0f, 8f)]
	public float m_HazeScatteringScale = 1f;

	[SerializeField]
	public Multiplier m_HazeScatteringMultiplier = Multiplier.One;

	[SerializeField]
	[Range(0.0001f, 0.1f)]
	public float m_HazeDensityHeightFalloff = 0.003f;

	[SerializeField]
	[Range(-0.99f, 0.99f)]
	public float m_HazeScatteringDirection = 0.8f;

	[SerializeField]
	[Range(0f, 1f)]
	public float m_HazeSecondaryScatteringRatio = 0.8f;

	[SerializeField]
	[Range(0f, 1f)]
	public float m_FogOpacity = 1f;

	[SerializeField]
	[Range(0f, 8f)]
	public float m_FogScatteringScale = 1f;

	[SerializeField]
	[Range(0f, 8f)]
	public float m_FogExtinctionScale = 1f;

	[SerializeField]
	public Multiplier m_FogExtinctionMultiplier = Multiplier.One;

	[SerializeField]
	[Range(0.0001f, 1f)]
	public float m_FogDensityHeightFalloff = 0.01f;

	[SerializeField]
	[Range(0f, 1f)]
	public float m_FogStartDistance;

	[SerializeField]
	[Range(-0.99f, 0.99f)]
	public float m_FogScatteringDirection = 0.7f;

	[SerializeField]
	[Range(-10000f, 10000f)]
	public float m_FogStartHeight;

	[SerializeField]
	public Color m_FogAmbientColour = Color.white;

	[SerializeField]
	public Color m_FogLightColour = Color.white;

	public DS_HazeContextItem()
	{
		m_Name = "New";
		m_Weight = new AnimationCurve(new Keyframe(0.25f, 0f), new Keyframe(0.5f, 1f), new Keyframe(0.75f, 0f));
	}

	public static float MultiplierAsFloat(Multiplier mult)
	{
		return mult switch
		{
			Multiplier.OneTenth => 0.1f, 
			Multiplier.OneFifth => 0.2f, 
			Multiplier.OneHalf => 0.5f, 
			Multiplier.One => 1f, 
			Multiplier.Two => 2f, 
			Multiplier.Five => 5f, 
			Multiplier.Ten => 10f, 
			Multiplier.OneHundredth => 0.01f, 
			_ => 1f, 
		};
	}

	public static float ParamWithMultiplier(float param, Multiplier mult)
	{
		return mult switch
		{
			Multiplier.OneTenth => param * 0.1f, 
			Multiplier.OneFifth => param * 0.2f, 
			Multiplier.OneHalf => param * 0.5f, 
			Multiplier.One => param * 1f, 
			Multiplier.Two => param * 2f, 
			Multiplier.Five => param * 5f, 
			Multiplier.Ten => param * 10f, 
			Multiplier.OneHundredth => param * 0.01f, 
			_ => param * 1f, 
		};
	}

	public void Lerp(DS_HazeContextItem other, float dt)
	{
		if (other != null)
		{
			dt = Mathf.Clamp01(dt);
			float num = 1f - dt;
			m_AirScatteringScale = m_AirScatteringScale * num + other.m_AirScatteringScale * dt;
			m_AirDensityHeightFalloff = m_AirDensityHeightFalloff * num + other.m_AirDensityHeightFalloff * dt;
			m_HazeScatteringScale = m_HazeScatteringScale * num + other.m_HazeScatteringScale * dt;
			m_HazeDensityHeightFalloff = m_HazeDensityHeightFalloff * num + other.m_HazeDensityHeightFalloff * dt;
			m_HazeScatteringDirection = m_HazeScatteringDirection * num + other.m_HazeScatteringDirection * dt;
			m_HazeSecondaryScatteringRatio = m_HazeSecondaryScatteringRatio * num + other.m_HazeSecondaryScatteringRatio * dt;
			m_FogOpacity = m_FogOpacity * num + other.m_FogOpacity * dt;
			m_FogScatteringScale = m_FogScatteringScale * num + other.m_FogScatteringScale * dt;
			m_FogExtinctionScale = m_FogExtinctionScale * num + other.m_FogExtinctionScale * dt;
			m_FogDensityHeightFalloff = m_FogDensityHeightFalloff * num + other.m_FogDensityHeightFalloff * dt;
			m_FogStartDistance = m_FogStartDistance * num + other.m_FogStartDistance * dt;
			m_FogScatteringDirection = m_FogScatteringDirection * num + other.m_FogScatteringDirection * dt;
			m_FogStartHeight = m_FogStartHeight * num + other.m_FogStartHeight * dt;
			m_FogAmbientColour = m_FogAmbientColour * num + other.m_FogAmbientColour * dt;
			m_FogLightColour = m_FogLightColour * num + other.m_FogLightColour * dt;
		}
	}

	public void CopyFrom(DS_HazeContextItem other)
	{
		if (other != null)
		{
			Type type = GetType();
			Type type2 = other.GetType();
			FieldInfo[] fields = type.GetFields();
			foreach (FieldInfo fieldInfo in fields)
			{
				FieldInfo field = type2.GetField(fieldInfo.Name);
				fieldInfo.SetValue(this, field.GetValue(other));
			}
			m_Weight = new AnimationCurve(m_Weight.keys);
		}
	}
}