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

namespace SuperTreeView
{
    public class ItemScript2 : MonoBehaviour,IPointerEnterHandler,IPointerExitHandler
    {
        public Button mExpandBtn;
        public Image mIcon;
        public Image mSelectImg;
        public Image mHoverImg;
        public Button mClickBtn;
        public Text mLabelText;
        public Text mSelectText;
        public Text mHoverText;

        public Image mLineHorizontal;
        public Image mLineVertical;
        public Image mLineVertical_2;
        public Image mExpandImg;
        public string mdata;

        public Sprite expand_minus;
        public Sprite expand_add;

        void Start()
        {
            mExpandBtn.onClick.AddListener(OnExpandBtnClicked);
            mClickBtn.onClick.AddListener(OnItemClicked);
        }

        public void Init()
        {
            SetExpandBtnVisible(false);
            SetExpandStatus(true);
            IsSelected = false;
        }

        void OnExpandBtnClicked()
        {
            TreeViewItem item = GetComponent<TreeViewItem>();
            item.DoExpandOrCollapse();
        }


        public void SetItemInfo(string iconSpriteName, string labelTxt,string data = "")
        {
            Init();
            if (!string.IsNullOrEmpty(iconSpriteName))
            {
                mIcon.sprite = SpriteResMgr.Instance.GetSpriteByName(iconSpriteName);
            }
            mLabelText.text = labelTxt;
            mSelectText.text = labelTxt;
            mHoverText.text = labelTxt;
            mdata = data;
        }

        void OnItemClicked()
        {
            TreeViewItem item = GetComponent<TreeViewItem>();
            item.RaiseCustomEvent(CustomEvent.ItemClicked, mdata);
        }

        public void SetExpandBtnVisible(bool visible)
        {
            if (visible)
            {
                mExpandBtn.gameObject.SetActive(true);
            }
            else
            {
                mExpandBtn.gameObject.SetActive(false);
            }
        }

        public bool IsSelected
        {
            get
            {
                return mSelectImg.gameObject.activeSelf;
            }
            set
            {
                mSelectImg.gameObject.SetActive(value);
                mIcon.gameObject.SetActive(!value);
                if (value) 
                { 
                    mHoverImg.gameObject.SetActive(!value);
                }
            }
        }
        public void SetExpandStatus(bool expand)
        {
            if (expand)
            {
                mExpandImg.sprite = expand_minus;
            }
            else
            {
                mExpandImg.sprite = expand_add;
            }
        }
        public void OnPointerEnter(PointerEventData eventData)
        {
            if (!mSelectImg.gameObject.activeSelf && mdata != "")
            {
                mHoverImg.gameObject.SetActive(true);
            }
        }

        public void OnPointerExit(PointerEventData eventData)
        {
            mHoverImg.gameObject.SetActive(false);
        }
    }
}