using System;
using System.Collections.Generic;
using System.Globalization;
using UFS2.ScriptableObjects;
using UnityEngine;

[CreateAssetMenu(menuName = "Data/LevelFishData", fileName = "LevelFishData")]
public class LevelFishData : ScriptableObject
{
	[Serializable]
	public class FishDataHelper
	{
		public FishData FishData;

		public Vector2 Weight;

		public float spawnChance = 1f;
	}

	[Tooltip("Name of scene to which they refer")]
	public string SceneName;

	public List<FishDataHelper> FishesSetting;

	public int StartCount;

	public float CullDistance;

	public float DrawDistance;

	[Header("Only for DEBUG")]
	[Tooltip("Put here all FishData there and click button Fish Settings")]
	public List<FishData> AllFishes;

	[Tooltip("Put CSV file to parse data, look in to code how it's parsed")]
	public TextAsset FishWeightCSV;

	private void FishesSettingSave()
	{
		string[] array = FishWeightCSV.text.Split('\n');
		FishesSetting = new List<FishDataHelper>();
		string[] array2 = array;
		for (int i = 0; i < array2.Length; i++)
		{
			string[] array3 = array2[i].Split(',');
			Debug.Log(array3[0] + ", " + array3[1] + ", " + array3[2]);
			int index = int.Parse(array3[0], NumberStyles.Number);
			float x = float.Parse(array3[1]);
			float y = float.Parse(array3[2]);
			FishesSetting.Add(new FishDataHelper
			{
				FishData = AllFishes[index],
				Weight = new Vector2(x, y)
			});
		}
	}

	public FishDataHelper GetRandomFishDataToSpawn()
	{
		FishDataHelper result = null;
		if (FishesSetting != null && FishesSetting.Count > 0)
		{
			float[] array = new float[FishesSetting.Count];
			for (int i = 0; i < FishesSetting.Count; i++)
			{
				array[i] = FishesSetting[i].spawnChance;
			}
			int randomWeightedIndex = GetRandomWeightedIndex(array);
			if (randomWeightedIndex >= 0)
			{
				result = FishesSetting[randomWeightedIndex];
			}
		}
		return result;
	}

	private int GetRandomWeightedIndex(float[] weights, System.Random rand = null, int weightsLength = -1)
	{
		weightsLength = ((weightsLength == -1) ? weights.Length : weightsLength);
		float num = 0f;
		for (int i = 0; i < weightsLength; i++)
		{
			num += weights[i];
		}
		if (num > 0f)
		{
			float num2;
			if (rand == null)
			{
				num2 = UnityEngine.Random.value;
			}
			else
			{
				int num3 = 1000000;
				num2 = (float)rand.Next(num3) / (float)(num3 - 1);
			}
			float num4 = 0f;
			for (int j = 0; j < weightsLength; j++)
			{
				num4 += weights[j] / num;
				if (num4 >= num2)
				{
					return j;
				}
			}
			return weightsLength - 1;
		}
		return -1;
	}
}