using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityAsync;
using WaitUntil = UnityAsync.WaitUntil;
using System.Threading.Tasks;
using UnityEngine.UI;
public class GCZLLayer : MonoBehaviour
{
    public GameObject classPrefab;
    public GameObject informationPrefab;

    public RectTransform classContent;
    public RectTransform informationContent;
    public YZTLayer zTLayer;

    public Sprite[] sprites;

    

    private List<GameObject> informations = new List<GameObject>();

    private GameObject lastClassBtn;
    private int currentClass = -99;
    // Start is called before the first frame update
    async void Start()
    {
        await InitData();
        StaticLod.instance.OnFoucusStatic(0);
        InitButton();
        InitInformation(0);
    }

    void InitButton() {
        for (int i = 0; i < zTLayer.layerDatas.Length; i++) {
            string name = zTLayer.layerDatas[i].layerName;
            int temp = i;
            GameObject obj = Instantiate(classPrefab);
            obj.transform.SetParent(classContent);
            obj.GetComponentInChildren<Text>().text = name;
            obj.transform.localScale = Vector3.one;
            if (i == 0)
            {
                obj.GetComponent<Image>().sprite = sprites[0];
                lastClassBtn = obj;
            }
            else
            {
                obj.GetComponent<Image>().sprite = sprites[1];
            }
            obj.GetComponent<Button>().onClick.AddListener(()=> {
                InitInformation(temp);
                lastClassBtn.GetComponent<Image>().sprite = sprites[1];
                obj.GetComponent<Image>().sprite = sprites[0];
                lastClassBtn = obj;
            });
        }
    }

    void InitInformation(int index) {
        if (currentClass == index) return;
        for (int i = informations.Count - 1; i >= 0; i--) {
            Destroy(informations[i]); 
        }
        informations.Clear();
        currentClass = index;
        if (currentClass == 0)
        {
            for (int i = 0; i < GlobalData.layerUnitDatas.Count; i++)
            {
                if (GlobalData.layerUnitDatas[i].special)
                {
                    GameObject obj = Instantiate(informationPrefab);
                    string realName = GlobalData.layerUnitDatas[i].name;
                    string priName = GlobalData.layerUnitDatas[i].name_pri;
                    obj.transform.SetParent(informationContent);
                    obj.transform.Find("Name").GetComponentInChildren<Text>().text = realName;
                    obj.transform.localScale = Vector3.one;
                    informations.Add(obj);
                    obj.GetComponent<Button>().onClick.AddListener(() =>
                    {
                        StaticLod.instance.OnFoucusStatic(priName);
                    }); 
                }
            }
        }
        else {
            for (int i = 0; i < GlobalData.layerUnitDatas.Count; i++)
            {
                if (GlobalData.layerUnitDatas[i].type == (LayerUnitType)currentClass)
                {
                    GameObject obj = Instantiate(informationPrefab);
                    string realName = GlobalData.layerUnitDatas[i].name;
                    string priName = GlobalData.layerUnitDatas[i].name_pri;
                    obj.transform.SetParent(informationContent);
                    obj.transform.Find("Name").GetComponentInChildren<Text>().text = realName;
                    obj.transform.localScale = Vector3.one;
                    informations.Add(obj);
                    obj.GetComponent<Button>().onClick.AddListener(() =>
                    {
                        StaticLod.instance.OnFoucusStatic(priName);
                    });
                }
            }
        }
    }


    async Task InitData()
    {
        await new WaitUntil(() =>
        {
            return GlobalData.layerUnitDatas.Count > 0;
        });
    }


    // Update is called once per frame
    void Update()
    {
        
    }
}