using System;
using System.Collections.Generic;
using UnityEngine;

namespace DeepSky.Haze;

[Serializable]
[AddComponentMenu("")]
public class DS_HazeContext
{
	[SerializeField]
	public List<DS_HazeContextItem> m_ContextItems;

	[SerializeField]
	private int m_SoloItem = -1;

	public int Solo => m_SoloItem;

	public DS_HazeContext()
	{
		m_ContextItems = new List<DS_HazeContextItem>();
		DS_HazeContextItem item = new DS_HazeContextItem
		{
			m_Name = "Default"
		};
		m_ContextItems.Add(item);
	}

	public void DuplicateContextItem(int index)
	{
		if (index >= 0 && index < m_ContextItems.Count)
		{
			DS_HazeContextItem dS_HazeContextItem = new DS_HazeContextItem();
			dS_HazeContextItem.CopyFrom(m_ContextItems[index]);
			dS_HazeContextItem.m_Name += "_Copy";
			m_ContextItems.Add(dS_HazeContextItem);
		}
	}

	public void RemoveContextItem(int index)
	{
		if (index >= 0 && index < m_ContextItems.Count && m_ContextItems.Count != 1)
		{
			m_ContextItems.RemoveAt(index);
			if (m_SoloItem != -1 && m_SoloItem == index)
			{
				m_SoloItem = -1;
			}
		}
	}

	public void MoveContextItemUp(int index)
	{
		if (index < 1 || index >= m_ContextItems.Count)
		{
			return;
		}
		DS_HazeContextItem item = m_ContextItems[index];
		m_ContextItems.RemoveAt(index);
		m_ContextItems.Insert(index - 1, item);
		if (m_SoloItem != -1)
		{
			if (m_SoloItem == index)
			{
				m_SoloItem--;
			}
			else if (m_SoloItem == index - 1)
			{
				m_SoloItem++;
			}
		}
	}

	public void MoveContextItemDown(int index)
	{
		if (index < 0 || index >= m_ContextItems.Count - 1)
		{
			return;
		}
		DS_HazeContextItem item = m_ContextItems[index];
		m_ContextItems.RemoveAt(index);
		m_ContextItems.Insert(index + 1, item);
		if (m_SoloItem != -1)
		{
			if (m_SoloItem == index)
			{
				m_SoloItem++;
			}
			else if (m_SoloItem == index + 1)
			{
				m_SoloItem--;
			}
		}
	}

	public DS_HazeContextItem GetContextItemBlended(float time = -1f)
	{
		DS_HazeContextItem dS_HazeContextItem = new DS_HazeContextItem();
		dS_HazeContextItem.CopyFrom(m_ContextItems[0]);
		if (m_ContextItems.Count == 1)
		{
			return dS_HazeContextItem;
		}
		time = Mathf.Clamp01(time);
		float num = 0f;
		for (int i = 1; i < m_ContextItems.Count; i++)
		{
			num = m_ContextItems[i].m_Weight.Evaluate(time);
			dS_HazeContextItem.Lerp(m_ContextItems[i], num);
		}
		return dS_HazeContextItem;
	}

	public DS_HazeContextItem GetItemAtIndex(int index)
	{
		if (index < 0 || index >= m_ContextItems.Count)
		{
			return null;
		}
		return m_ContextItems[index];
	}

	public void CopyFrom(DS_HazeContext other)
	{
		if (m_ContextItems.Count > 0)
		{
			m_ContextItems.Clear();
		}
		for (int i = 0; i < other.m_ContextItems.Count; i++)
		{
			DS_HazeContextItem dS_HazeContextItem = new DS_HazeContextItem();
			dS_HazeContextItem.CopyFrom(other.m_ContextItems[i]);
			m_ContextItems.Add(dS_HazeContextItem);
		}
	}

	public DS_HazeContextAsset GetContextAsset()
	{
		DS_HazeContextAsset dS_HazeContextAsset = ScriptableObject.CreateInstance<DS_HazeContextAsset>();
		dS_HazeContextAsset.Context.CopyFrom(this);
		dS_HazeContextAsset.Context.m_SoloItem = -1;
		return dS_HazeContextAsset;
	}

	public string[] GetItemNames()
	{
		string[] array = new string[m_ContextItems.Count];
		for (int i = 0; i < m_ContextItems.Count; i++)
		{
			array[i] = m_ContextItems[i].m_Name;
		}
		return array;
	}
}