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

namespace QFramework.Example
{
    public class UIImageSelectMapData : UIPanelData
    {
        public class OptionItem
        {
            public string pic;
            public Vector2 pos;
            public Vector2 size;
        }
        public string scoreName;
        public float totalScore;
        public float rightScore;
        public float wrongScore;
        public string rightLabel;
        public string wrongLabel;
        public string finishedEvent;
        public string rightBg;
        public List<OptionItem> items = new List<OptionItem>();

    }
    public partial class UIImageSelectMap : UIPanel
    {
        ResLoader loader;
        GameObject moveObj;
        GameObject enterRight;
        GameObject leftDragObj;
        Dictionary<GameObject, UIImageSelectMapData.OptionItem> itemDatas = new Dictionary<GameObject, UIImageSelectMapData.OptionItem>();
        protected override void OnInit(IUIData uiData = null)
        {
            mData = uiData as UIImageSelectMapData ?? new UIImageSelectMapData();
            // please add init code here
            loader = ResLoader.Allocate();
        }

        protected override void OnOpen(IUIData uiData = null)
        {
            mData = uiData as UIImageSelectMapData ?? new UIImageSelectMapData();

            LeftContent.RemoveAllChildren();
            RightContent.RemoveAllChildren();
            itemDatas.Clear();
            foreach (var item in mData.items)
            {
                var leftObj = GameObject.Instantiate(LeftItem, LeftContent);
                var path = Global.imagePath + item.pic;
                loader.Add2Load(path.ToNetImageResName(), (success, res) =>
                {
                    if (success)
                    {
                        leftObj.GetComponent<Image>().sprite = Utility.GetSprite(res.Asset as Texture2D);
                    }
                });

                leftObj.OnBeginDragEvent(LeftOnBeginDrag);
                leftObj.OnDragEvent(LeftOnDrag);
                leftObj.OnEndDragEvent(LeftOnEndDrag);

                var rightObj = GameObject.Instantiate(RightItem, RightContent);
                rightObj.name = item.pic;
                rightObj.rectTransform.anchoredPosition = item.pos;
                rightObj.rectTransform.sizeDelta = item.size;
                rightObj.OnPointerEnterEvent(RightOnEnter);
                rightObj.OnPointerExitEvent(RightOnExit);

                itemDatas.Add(leftObj.gameObject, item);
            }



            var rightBgPath = Global.imagePath + mData.rightBg;
            loader.Add2Load(rightBgPath.ToNetImageResName(), (success, res) =>
            {
                if (success)
                {
                    RightContent.GetComponent<Image>().sprite = Utility.GetSprite(res.Asset as Texture2D);
                    RightContent.GetComponent<Image>().SetNativeSize();
                }
            });

            loader.LoadAsync();



        }

        private void RightOnExit(PointerEventData data)
        {
            enterRight = null;
        }

        private void RightOnEnter(PointerEventData data)
        {
            enterRight = data.pointerEnter.gameObject;
        }

        private void LeftOnBeginDrag(PointerEventData data)
        {
            leftDragObj = data.pointerDrag;
            moveObj = GameObject.Instantiate(LeftItem.gameObject, gameObject.transform);
            moveObj.GetComponent<Image>().raycastTarget = false;
        }

        private void LeftOnEndDrag(PointerEventData data)
        {
            if (enterRight)
            {
                if (enterRight.name == itemDatas[leftDragObj].pic)
                {
                    Debug.LogError("ÕýÈ·");
                    enterRight.GetComponent<Image>().color = Color.green;
                }
                else
                {
                    Debug.LogError("´íÎó");
                    enterRight.GetComponent<Image>().color = Color.red;
                }
                moveObj.transform.parent = enterRight.transform;
                moveObj.transform.localPosition = Vector3.zero;
            }
            else
            {
                GameObject.Destroy(moveObj);
                moveObj = null;
            }
            leftDragObj = null;
        }

        private void LeftOnDrag(PointerEventData data)
        {
            //data.pointerDrag.transform.position = Input.mousePosition;
            if (moveObj)
            {
                moveObj.transform.position = Input.mousePosition;
            }
        }


        protected override void OnShow()
        {
        }

        protected override void OnHide()
        {
        }

        protected override void OnClose()
        {
        }
    }
}