using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;
using XFramework;

/// <summary>
/// 拖拽展示所有的数据框
/// </summary>
public class EditorContentCtrl : MonoBehaviour
{
    public GameObject childPrefab;
    Dictionary<string, IconBase> iconDic = new Dictionary<string, IconBase>();
    [Header("需要更新图标样式时勾选")]
    public bool needSprite;
    [Header("内部数据时勾选 否则加载外部数据")]
    public bool buildInSprite;
    public Dictionary<string, IconBase> children { get { return iconDic; } }
    /// <summary>
    /// 创建一系列子物体 加载外部UI资源时 使用await等待资源加载完成  内部资源无需等待
    /// </summary>
    /// <param name="carsName">子物体预制件名称</param>
    public async void CreatChildren(string[] carsName,UnityAction CreatOverEvent=null)
    {
        if (needSprite&& !buildInSprite)//需要加载外部多个资源时
        {
            string[] paths = new string[carsName.Length];
            for (int i = 0; i < carsName.Length; i++)
            {
                paths[i] = StreamingAssetsManager.GetPath($"{carsName[i]}_Tex");
            }
            Sprite [] sprites= await OutSpriteLoader.LoadSprites(paths);
            for (int i = 0; i < carsName.Length; i++)
            {
                IconBase icon = GetIcon(carsName[i]);
                icon.SetSprite(sprites[i]);
                CreatOverAndInitIcon(carsName[i],null,icon);
            }
        }
        else
        {
            for (int i = 0; i < carsName.Length; i++)
            {
                if (CreatOverEvent != null && i == carsName.Length - 1)//最后一个加载完成后 触发加载完成事件
                {
                    AddChild(carsName[i], null);
                    //Debug.Log("开始加载最后一张图片");
                }
                else
                    AddChild(carsName[i]);
            }
        }
        CreatOverEvent?.Invoke();
    }



    //名称重复时不生成新的元素 用新元素的数据覆盖原有的数据
    public async void AddChild(string childName,object initMsg=null)
    {
        //Debug.Log(childName);
        IconBase iconBase = GetIcon(childName);
        if (needSprite)
        {
            Sprite sprite;
            if (buildInSprite)
            {
                sprite = Resources.Load<Sprite>(ResourcesManager.GetPath(childName));
            }
            else
            {
                string path = StreamingAssetsManager.GetPath($"{childName}_Tex");
                sprite = await OutSpriteLoader.LoadSprite(path);
            }
            iconBase.SetSprite(sprite);
        }
        CreatOverAndInitIcon(childName, initMsg, iconBase);
        //createOver?.Invoke();
    }
    
    //图标创建完成 加入字典 设置初始化数据
    private void CreatOverAndInitIcon(string childName, object initMsg, IconBase iconBase)
    {
        iconDic[childName] = iconBase;
        iconBase.SetName(childName);
        if (initMsg != null)
            iconBase.SetUpdateIconMsg(initMsg);
    }

    //获取一个图标实例 优先从字典中获取避免重复 字典中不存在时创建
    private IconBase GetIcon(string childName)
    {
        IconBase iconBase;
        if (iconDic.ContainsKey(childName))
            iconBase = iconDic[childName];
        else
            iconBase = Instantiate<GameObject>(childPrefab, this.transform).GetComponent<IconBase>();
        return iconBase;
    }

    /// <summary>
    /// 移除一个元素
    /// </summary>
    /// <param name="childName"></param>
    public void RemoveChild(string childName)
    {
        if (!iconDic.ContainsKey(childName)) return;
        GameObject.Destroy(iconDic[childName].gameObject);
        iconDic.Remove(childName);
        DBManager.Instance.DeleteABMsg(childName);
    }

    /// <summary>
    /// 移除所有元素
    /// </summary>
    public void RemoveAll()
    {
        foreach (var item in iconDic)
        {
            Destroy(item.Value.gameObject);
        }
        iconDic.Clear();
    }

    /// <summary>
    /// 初始化图标
    /// </summary>
    /// <typeparam name="TKey">图标创建时指定的唯一标识类</typeparam>
    /// <typeparam name="TValue">图标初始化数据类</typeparam>
    /// <param name="msgDic">数据集合</param>
    public void SetInitMsg<TKey,TValue>(Dictionary<TKey, TValue> msgDic)
    {
        if (msgDic != null)
        {
            foreach (var item in msgDic)
            {
                if (iconDic.ContainsKey(item.Key.ToString()))
                {
                    iconDic[item.Key.ToString()].SetUpdateIconMsg(item.Value);
                }
            }
        }
    }



}