using System;
using System.Collections.Generic;
using LitJson;
using UnityEngine;
using UnityEngine.UI;

/// <summary>
/// 随机宝箱:区分是真物品，还是预览
/// 支持同时打开多个界面
/// </summary>
public class BoxItemWin : UIBase
{

    [SerializeField] ItemCell itemCell;
    [SerializeField] Text nameText;
    [SerializeField] Text descText;
    [SerializeField] ScrollerController scroller;
    [SerializeField] SliderPanel sliderPanel;
    [SerializeField] Button openButton;

    [SerializeField] CellView _InitCell;

    string guid;
    int itemID;
    int itemCount;
    int useCnt;
    List<Item> items;
    protected override void InitComponent()
    {
        openButton.AddListener(() =>
        {
            if (useCnt == 0)
            {
                CloseWindow();
                return;
            }
            if (ItemLogicUtility.Instance.UseItem(guid, useCnt))
            {
                CloseWindow();
            }
        });
    }

    protected override void Start()
    {
        _InitCell.cellIdentifier = _InitCell.cellIdentifier + this.GetInstanceID().ToString();
    }


    protected override void OnPreOpen()
    {
        itemID = ItemTipUtility.mainTipData.baseInfo.itemId;
        itemCount = ItemTipUtility.mainTipData.baseInfo.count;
        guid = ItemTipUtility.mainTipData.guid;

        itemCell.Init(new ItemCellModel(itemID, false, itemCount));
        var itemConfig = ItemConfig.Get(itemID);
        nameText.text = itemConfig.ItemName;
        descText.text = itemConfig.Description;

        if (string.IsNullOrEmpty(guid))
        {
            openButton.SetActive(false);
            sliderPanel.SetActive(false);
        }
        else
        {
            openButton.SetActive(true);
            sliderPanel.SetActive(true);
        }

        sliderPanel.Init((value) => { useCnt = value; }, itemCount);


        scroller.OnRefreshCell += OnRefreshCell;
        items = BoxGetItemModel.Instance.GetBoxItems(itemID);
        CreateScroller();
    }

    protected override void OnPreClose()
    {
        scroller.OnRefreshCell -= OnRefreshCell;
    }

    void CreateScroller()
    {
        scroller.Refresh();
        
        for (int i = 0; i < items.Count; i++)
        {
            if (i % 4 == 0)
            { 
                List<Item> tmpIDs = new List<Item>();
                for (int j = 0; j < 4; j++)
                {
                    int index = i + j;
                    if (index >= items.Count)
                        break;
                    tmpIDs.Add(items[index]);
                }
                scroller.AddCell(ScrollerDataType.Header, i);
            }
        }
        scroller.Restart();
    }


    void OnRefreshCell(ScrollerDataType type, CellView cell)
    {
        var _cell = cell as BoxItemLineCell;

        List<Item> tmpIDs = new List<Item>();
        for (int j = 0; j < 4; j++)
        {
            int index = cell.index + j;
            if (index >= items.Count)
                break;
            tmpIDs.Add(items[index]);
        }

        _cell.Display(tmpIDs);
    }
    

    
}