using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Sirenix.OdinInspector;
using UnityEngine.UI;
using System;
using UnityCommon;

namespace DTYJ
{
    public class UIToolPanel : MonoBehaviour
    {
        public static UIToolPanel instance;
        public DicStringSprite dicPic;
        private GameObject goItem;
        private Transform tfImage;
        private void Awake()
        {
            instance = this;
            goItem = transform.GetChild(0).GetChild(1).gameObject;
            goItem.SetActive(false);
            tfImage = transform.GetChild(1);
            Init();
        }
        private void Init()
        {
            foreach (var item in dicPic)
            {
                var goNew = Instantiate(goItem, goItem.transform.parent);
                goNew.SetActive(true);
                var itemName = item.Key;
                goNew.GetComponent<Image>().sprite = item.Value;
                goNew.GetComponent<Button>().onClick.AddListener(() => { OnClickItem(itemName); });
                goNew.GetComponentInChildren<Text>().text = itemName;
            }
        }

        public string nowSelected = null;
        private void OnClickItem(string itemName)
        {
            SelectItem(itemName);
        }
        private void Update()
        {
            if (Input.GetMouseButtonDown(0))
            {
                if (nowSelected != null)
                {
                    CancelSelect();
                }
            }
            if (tfImage.gameObject.activeSelf)
            {
                tfImage.position = Input.mousePosition;
            }
        }
        private void CancelSelect()
        {
            Utility.DelayExe(0.2f, () =>
            {
                nowSelected = null;
                tfImage.gameObject.SetActive(false);
            });
        }
        private void SelectItem(string strName)
        {
            nowSelected = strName;
            tfImage.GetComponent<Image>().sprite = dicPic[strName];
            tfImage.gameObject.SetActive(true);
        }

        [Serializable]
        public class DicStringSprite : UnitySerializedDictionary<string, Sprite> { }
        public abstract class UnitySerializedDictionary<TKey, TValue> : Dictionary<TKey, TValue>, ISerializationCallbackReceiver
        {
            [SerializeField, HideInInspector]
            private List<TKey> keyData = new List<TKey>();

            [SerializeField, HideInInspector]
            private List<TValue> valueData = new List<TValue>();

            void ISerializationCallbackReceiver.OnAfterDeserialize()
            {
                this.Clear();
                for (int i = 0; i < this.keyData.Count && i < this.valueData.Count; i++)
                {
                    this[this.keyData[i]] = this.valueData[i];
                }
            }

            void ISerializationCallbackReceiver.OnBeforeSerialize()
            {
                this.keyData.Clear();
                this.valueData.Clear();

                foreach (var item in this)
                {
                    this.keyData.Add(item.Key);
                    this.valueData.Add(item.Value);
                }
            }
        }


    }
}