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

[System.Serializable]
public struct RemainsMode
{
    public string Rename;
    public RemainsItem remains;
    public int Count;
}
[CreateAssetMenu(fileName = "背包", menuName = "仪式/背包")]
public class RemainsBag : ScriptableObject
{
    public List<RemainsMode> Items;
    [Header("太阳神之眼")]
    public GameObject SunRemains;
    [Header("其他遗物")]
    public GameObject OtherRemains;
    public void AddItems(RemainsItem remainsItem, int count = 1)
    {
        for (int i = 0; i < Items.Count; i++)
        {
            if (remainsItem == Items[i].remains)
            {
                RemainsMode remainsMode = Items[i];
                remainsMode.Count += count;
                Items[i] = remainsMode;
                return;
            }
        }
    }
    public void AddItems(string Itemname, int count = 1)
    {
        for (int i = 0; i < Items.Count; i++)
        {
            if (Itemname == Items[i].Rename)
            {
                RemainsMode remainsMode = Items[i];
                remainsMode.Count += count;
                Items[i] = remainsMode;
                return;
            }
        }
    }
    public void CutItems(RemainsItem remainsItem, int count = 1)
    {
        for (int i = 0; i < Items.Count; i++)
        {
            if (remainsItem == Items[i].remains)
            {
                RemainsMode remainsMode = Items[i];
                remainsMode.Count -= count;

                if (remainsMode.Count <= 0)
                {
                    Items.RemoveAt(i);
                }
                else
                {
                    Items[i] = remainsMode;
                }

                return;
            }
        }
    }
    public void CutItems(string Itemname, int count = 1)
    {
        for (int i = 0; i < Items.Count; i++)
        {
            if (Itemname == Items[i].Rename)
            {
                RemainsMode remainsMode = Items[i];
                remainsMode.Count -= count;

                if (remainsMode.Count <= 0)
                {
                    Items.RemoveAt(i);
                }
                else
                {
                    Items[i] = remainsMode;
                }
                return;
            }
        }
    }

    public RemainsMode GetRemainsMode(string Itemname)
    {
        RemainsMode remainsMode = new RemainsMode();
        for (int i = 0; i < Items.Count; i++)
        {
            if (Itemname == Items[i].Rename)
            {
                remainsMode = Items[i];
                return remainsMode;
            }
        }
        return remainsMode;
    }

    public RemainsItem GetRemainsItem(string Itemname)
    {
        RemainsMode remainsMode = new RemainsMode();
        for (int i = 0; i < Items.Count; i++)
        {
            if (Itemname == Items[i].Rename)
            {
                remainsMode = Items[i];
                return remainsMode.remains;
            }
        }
        return remainsMode.remains;
    }
    public Sprite GetSprite(string Itemname)
    {
        RemainsMode remainsMode = GetRemainsMode(Itemname);

        return remainsMode.remains.remainssprite;
    }

    /// <summary>
    /// 得到遗物奖励
    /// </summary>
    /// <returns></returns>
    public RemainsItem GetRemainsReward()
    {
        // 创建一个可用的奖励列表，过滤掉权重为 0 的项
        List<RemainsItem> availableItems = new List<RemainsItem>();
        foreach (var item in Items)
        {
            if (item.remains.WightNum > 0)  // 过滤掉权重为0的项
            {
                availableItems.Add(item.remains);
            }
        }

        // 计算所有权重的总和
        int totalWeight = 0;
        foreach (var item in availableItems)
        {
            totalWeight += item.WightNum;
        }

        // 如果没有有效的项，返回 null
        if (totalWeight == 0)
        {
            Debug.LogWarning("没有可用的遗物项，所有项的权重都为 0");
            return null;
        }

        // 在 0 到 totalWeight 之间生成一个随机数
        int randomWeight = Random.Range(0, totalWeight);

        // 遍历可用的项，根据权重找到对应的项
        int cumulativeWeight = 0;
        foreach (var item in availableItems)
        {
            cumulativeWeight += item.WightNum;
            if (randomWeight < cumulativeWeight)
            {
                return item;  // 找到符合的项，返回
            }
        }
        return availableItems[0];
    }
}