using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Linq;
using UnityEngine.UI;
using UnityEngine.Events;

public class ShowPointEx : MonoBehaviour
{
    public static ShowPointEx Instance;

    private void Awake()
    {
        Instance = this;
    }

    public GameObject objShowPointEx;

    public GameObject preBtnShowPoint;

    public Transform tranParent;

    //void Update()
    //{
    //    if (Input.GetKeyDown(KeyCode.F4))
    //    {
    //        if (objShowPointEx.activeSelf)
    //            HidePanel();
    //        else
    //            ShowPanel(SceneLoader.currentIndex);
    //    }
    //}

    public void BtnCloseClick()
    {
        HidePanel();
    }
    
    void OnShowPointChanged()
    {
        if (ShowPointChanged != null)
        {
            ShowPointChanged();
        }
    }

    public static event UnityAction ShowPointChanged;

    public void BtnShowPointClick(ShowPoint info)
    {
        SceneLoader.Instance.SetCameraPosition(info);
        HidePanel();
        Invoke("OnShowPointChanged", 0.1f);
    }

    public void BtnExClick(int index)
    {
        ShowPanel(index);
    }

    List<ShowPoint> lstShowPoint;

    int currentShowIndex = -1;

    public string ShowPointFileName;

    int index;
    public void ShowPanel(int index)
    {
        this.index = index;
        if (lstShowPoint == null)
        {
           StartCoroutine(DataLoader<ShowPoint>.LoadDataList(ShowPointFileName, Show));
        }
        else
        {
            Show();
        }
    }

    void Show()
    {
        if (lstShowPoint == null)
        {
            lstShowPoint = DataLoader<ShowPoint>.DataList;
        }

        if (objShowPointEx.activeSelf && index == currentShowIndex)
        {
            return;
        }

        objShowPointEx.SetActive(true);
        BaseController.CanControl = false;

        if (currentShowIndex != index)
        {
            tranParent.GetComponent<RectTransform>().anchoredPosition = Vector2.zero;

            // 移除旧的展示点列表
            for (int i = 0; i < tranParent.childCount; i++)
            {
                Destroy(tranParent.GetChild(i).gameObject);
            }

            var result = lstShowPoint.Where(sp => sp.ZT_Index == index);

            GameObject tmpObj;
            Button tmpBtn;
            // 数据加载结束后，为所有数据根据数据类型添加控制点组件
            foreach (var info in result)
            {
                tmpObj = Instantiate(preBtnShowPoint, tranParent);
                tmpObj.name = "SP_" + info.ObjectID;
                tmpObj.GetComponentInChildren<Text>().text = info.Title;
                tmpBtn = tmpObj.GetComponent<Button>();
                tmpBtn.onClick.AddListener(
                    delegate ()
                    {
                        BtnShowPointClick(info);
                    }
                );
                tmpBtn.transform.gameObject.AddComponent<ShowPointInfo>();
            }

            for (int i = 0; i < 6; i++)
            {
                GameObject obj = GameObject.Find("Button" + i);
                Image img = obj.GetComponent<Image>();
                if (i == index)
                    img.color = Color.white;
                else
                    img.color = new Color(1f, 1f, 1f, 0.2f);
            }
        }

        currentShowIndex = index;
    }

    public void HidePanel()
    {
        objShowPointEx.SetActive(false);
        BtnController.Instance.SetCanControlDelay();
        // BaseController.CanControl = true;
    }
}