using Assets.Framework.Tool;
using Assets.MyGame.Scripts.Net;
using Assets.MyGame.Scripts.Net.API.UserData_SubClass;
using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

public class UIHome_BY_BackPackPanel : SubUIBase
{
    public List<BaseProductCount> props;
    public Dictionary<string, BaseProductCount> propsID_Dic = new Dictionary<string, BaseProductCount>();
    public Dictionary<int, BaseProductCount> propsObjHashCode_Dic = new Dictionary<int, BaseProductCount>();
    public Transform pageParent;
    public BackPackPropItem prefabItem;

    public TextMeshProUGUI tMP_Gold;
    public TextMeshProUGUI tMP_Diamond;

    [Header("道具详情")]
    public TextMeshProUGUI tMP_Name;
    public TextMeshProUGUI tMP_Description;
    public Image img_Prop;
    public string propID;
    public PropEnum propType;

    public ScrollRect scrollRect;
    public Button btn_Use;

    // 刷新时保存的状态
    private Vector2 savedScrollPos;
    private string savedPropID;

    public override void Awake()
    {
        base.Awake();
        GameManager.Instance.OnUserDataChanged += OnUserDataChanged;
    }

    private void OnUserDataChanged()
    {
        // 刷新前保存状态
        if (scrollRect != null) savedScrollPos = scrollRect.normalizedPosition;
        savedPropID = propID;

        RefreshUI();
        RebuildPropsList();

        // 刷新后恢复状态
        if (scrollRect != null) scrollRect.normalizedPosition = savedScrollPos;
    }

    protected override void OnShow(object args = null)
    {
        base.OnShow(args);
        RefreshUI();
        RebuildPropsList();
    }

    private void RefreshUI()
    {
        if (GameManager.Instance?.user?.assets == null) return;
        tMP_Gold.text = GameManager.Instance.user.assets.gold.ToString();
        tMP_Diamond.text = GameManager.Instance.user.assets.diamond.ToString();
    }

    private void RebuildPropsList()
    {
        props = GameManager.Instance.user.props;

        // 构建字典，过滤数量 ≤0 的
        propsID_Dic.Clear();
        if (props != null)
        {
            foreach (BaseProductCount product in props)
            {
                if (product.count > 0)
                    propsID_Dic[product.number] = product;
            }
        }

        // 清空旧列表
        for (int j = pageParent.childCount - 1; j >= 0; j--)
            Destroy(pageParent.GetChild(j).gameObject);
        propsObjHashCode_Dic.Clear();

        bool isfirst = true;
        foreach (BaseProductCount product in propsID_Dic.Values)
        {
            // 第一项或与保存的选中id匹配 → 设为选中详情
            if (isfirst || product.number == savedPropID)
            {
                ShowPropDetail(product);
                isfirst = false;
            }

            GameObject obj = Instantiate(prefabItem.gameObject, pageParent);
            var tempItem = obj.GetComponent<BackPackPropItem>();
            tempItem.Init(APIManager.baseURL + product.imageUrl, product.count, (PropEnum)product.type);

            propsObjHashCode_Dic[obj.GetHashCode()] = product;
            string capturedNum = product.number;
            obj.GetComponent<Toggle>().onValueChanged.AddListener((value) =>
            {
                if (value) ShowPropDetail(product);
            });
        }
    }

    private void ShowPropDetail(BaseProductCount product)
    {
        if (product == null) return;
        tMP_Name.text = product.name;
        tMP_Description.text = product.desc;
        propID = product.number;
        propType = (PropEnum)product.type;

        WebTool.DownImage(APIManager.baseURL + product.imageUrl, (texture) =>
        {
            if (texture != null && img_Prop != null)
                img_Prop.sprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), Vector2.one * 0.5f);
        });

        btn_Use.onClick.RemoveAllListeners();
        btn_Use.onClick.AddListener(() =>
        {
            switch (propType)
            {
                case PropEnum.none: break;
                case PropEnum.炮塔碎片: break;
                case PropEnum.翅膀碎片: break;
                case PropEnum.战神碎片: break;
                case PropEnum.刮刮卡:
                    uIManager.ShowAsync(UIPanel.GuaGuaKa);
                    break;
                case PropEnum.改名卡: break;
                case PropEnum.大喇叭: break;
                case PropEnum.技能: break;
                case PropEnum.召唤卡: break;
                default: break;
            }
        });
    }
}