using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
using ZXK.UTility;
using DG.Tweening;
/*******************************************************************************
*Create By CG
*Function 每个工具控制
*******************************************************************************/
namespace ZXK.ZPS
{
	public class UIToolItemCtrl : MonoBehaviour, IBeginDragHandler, IDragHandler, IEndDragHandler
	{
		[SerializeField]//每个工具图片载体
		private Image _itemToolImg = null;
        [SerializeField]//每个工具图片载体
        private Text _itemName = null;
        [SerializeField]//背景常态和选中，，文本常态和选中
        private Sprite[] _defaultAndSelectBg = null;


        private Transform _toolContainerTran = null;
        private Transform _toolSelectContainerTran = null;
        private Transform _toolTempContainerTran = null;

        private string _toolName = null;
        private RectTransform _rectTransform = null;
        private int _originalPosIndex = 0;

        private bool _isMove = false;

        [MyReadOnly]
        public bool _IsToolSelectState = false;

        /// <summary>
        /// 初始化工具
        /// </summary>
        /// <param name="toolName">工具名字</param>
        /// <param name="toolParent">所有工具父物体</param>
        /// <param name="toolTempParent">临时工具箱</param>
        /// <param name="toolSelectParent">选中的工具父物体</param>
        public void InitToolItem(string toolName, Sprite toolImg, Transform toolParent, Transform toolTempParent, Transform toolSelectParent)
        {
            _rectTransform = GetComponent<RectTransform>();

            transform.name = _toolName = toolName;
            _itemName.text = toolName;
            if (toolImg != null)
            {
                _itemToolImg.sprite = toolImg;
            }
            _toolContainerTran = toolParent;
            _toolTempContainerTran = toolTempParent;
            _toolSelectContainerTran = toolSelectParent;
            _originalPosIndex = transform.GetSiblingIndex();
        }

        public void SetLight(bool isNext)
        {
            _isMove = isNext;
            transform.Find("TxtBg").GetComponent<Image>().sprite= _isMove ? _defaultAndSelectBg[3] : _defaultAndSelectBg[2];
            transform.GetComponent<Image>().sprite = _isMove ? _defaultAndSelectBg[1] : _defaultAndSelectBg[0];
            //transform.GetComponent<Image>().color = _isMove ? Color.yellow : Color.white;
            if (_isMove)
                transform.GetComponent<Image>().DOFade(0.3f, 0.5f).SetLoops(-1, LoopType.Yoyo).SetId("ToolLight");
            else
                DOTween.Kill("ToolLight");
        }

        public void SetDefault()
        {
            _isMove = false;
            DOTween.Kill("ToolLight");
            transform.Find("TxtBg").GetComponent<Image>().sprite = _isMove ? _defaultAndSelectBg[3] : _defaultAndSelectBg[2];
            transform.GetComponent<Image>().sprite = _isMove ? _defaultAndSelectBg[1] : _defaultAndSelectBg[0];
            //transform.GetComponent<Image>().color = _isMove ? Color.yellow : Color.white;
            transform.SetParent(_toolContainerTran);
        }

        public void OnBeginDrag(PointerEventData eventData)
        {
            if (GameRoot.Instance._CurModel == EnumCtrl.Model.Train)
            {
                if (_isMove)
                {
                    //Debug.Log("开始移动");
                    transform.SetParent(_toolTempContainerTran);
                }
            }
            else
            {
                //Debug.Log("开始移动");
                transform.SetParent(_toolTempContainerTran);
            }
        }

        public void OnDrag(PointerEventData eventData)
        {
            if (GameRoot.Instance._CurModel == EnumCtrl.Model.Train)
            {
                if (_isMove)
                {
                    Vector3 pos;
                    RectTransformUtility.ScreenPointToWorldPointInRectangle(_rectTransform, eventData.position, eventData.enterEventCamera, out pos);
                    _rectTransform.position = pos;
                }
            }
            else
            {
                Vector3 pos;
                RectTransformUtility.ScreenPointToWorldPointInRectangle(_rectTransform, eventData.position, eventData.enterEventCamera, out pos);
                _rectTransform.position = pos;
            }
        }

        public void OnEndDrag(PointerEventData eventData)
        {
            if (GameRoot.Instance._CurModel == EnumCtrl.Model.Train)
            {
                if (_isMove)
                {
                    if (RectTransformUtility.RectangleContainsScreenPoint(_toolSelectContainerTran.parent.GetComponent<RectTransform>(), eventData.position))
                    {
                        //Debug.Log("在内部");
                        _IsToolSelectState = true;
                        transform.SetParent(_toolSelectContainerTran);
                    }
                    else
                    {
                        //Debug.Log("在外部");
                        _IsToolSelectState = false;
                        transform.SetParent(_toolContainerTran);
                        transform.SetSiblingIndex(_originalPosIndex);
                    }
                }
            }
            else
            {
                if (RectTransformUtility.RectangleContainsScreenPoint(_toolSelectContainerTran.parent.GetComponent<RectTransform>(), eventData.position))
                {
                    //Debug.Log("在内部");
                    _IsToolSelectState = true;
                    transform.SetParent(_toolSelectContainerTran);
                }
                else
                {
                    //Debug.Log("在外部");
                    _IsToolSelectState = false;
                    transform.SetParent(_toolContainerTran);
                    transform.SetSiblingIndex(_originalPosIndex);
                }
            }
        }
    }
}