using DG.Tweening;
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
using XRTool.Util;

namespace XRTool.WorldUI
{
    /// <summary>
    /// 空间按钮
    /// </summary>
    public class XRButton : Button
    {
        [Range(0, 200f)]
        public float thickness = 50;
        /// <summary>
        /// 压缩比例，按下按钮时的压缩比例
        /// </summary>
        [Range(0.05f, 1)]
        public float pressDis = 0.5f;
        [Range(1, 10)]
        public float pressTime = 3f;
        public bool isShowBack = false;
        public bool isShowBox = true;
        private XRIcon3D box;
        private Transform back;
        private RectTransform body;
        public bool isTweenOnClick = true;
        public XRIcon3D Box
        {
            get
            {
                if (!box)
                {
                    box = UnityUtil.GetBreadthChild<XRIcon3D>(transform, "BoxIcon3D");
                }
                return box;
            }
            set => box = value;
        }

        public Transform Back
        {
            get
            {
                if (!back)
                {
                    back = UnityUtil.GetBreadthChild<Transform>(transform, "Back");
                }
                return back;
            }
            set => back = value;
        }

        public RectTransform Body
        {
            get
            {
                if (!body)
                {
                    body = GetComponent<RectTransform>();
                }
                return body;
            }
            set => body = value;
        }

        public override void OnPointerDown(PointerEventData eventData)
        {
            base.OnPointerDown(eventData);
            if (!isTweenOnClick) return;
            if (Box)
            {
                //Box.DOKill();
                //Box.DOScaleZ(thickness * pressDis, (1 - pressDis) / pressTime / 3 * 2);
                Box.DoThickness(pressDis, (1 - pressDis) / pressTime / 3 * 2);
            }
            if (targetGraphic)
            {
                targetGraphic.transform.DOKill();
                targetGraphic.transform.DOLocalMoveZ(-thickness * pressDis / 2, (1 - pressDis) / pressTime);
            }
        }
        public override void OnPointerUp(PointerEventData eventData)
        {
            base.OnPointerUp(eventData);
            if (!isTweenOnClick) return;
            if (Box)
            {
                //Box.DOKill();
                //Box.DOScaleZ(thickness, (1 - pressDis) / pressTime / 3 * 2);
                Box.DoThickness(1, (1 - pressDis) / pressTime / 3 * 2);
            }
            if (targetGraphic)
            {
                targetGraphic.transform.DOKill();
                targetGraphic.transform.DOLocalMoveZ(-thickness / 2, (1 - pressDis) / pressTime);
            }
        }

        /// <summary>
        /// 更新按钮的厚度
        /// </summary>
        public void UpdateThickness()
        {
            Vector3 tmp = targetGraphic.rectTransform.anchoredPosition3D;
            tmp.z = -thickness / 2;
            targetGraphic.rectTransform.anchoredPosition3D = tmp;
            if (Box)
            {
                Box.SetThickness(thickness);
            }
        }
        protected override void OnRectTransformDimensionsChange()
        {
            base.OnRectTransformDimensionsChange();
            AutoSetSize();
        }
        public void AutoSetSize()
        {
            for (int i = 0; i < Body.childCount; i++)
            {
                var child = Body.GetChild(i);
                //as RectTransform;
                if (child is RectTransform)
                {
                    (child as RectTransform).sizeDelta = Body.rect.size;
                }
                else
                {
                    Vector3 tmp = child.localScale;
                    tmp.x = Body.rect.size.x;
                    tmp.y = Body.rect.size.y;
                    child.localScale = tmp;
                }
            }
        }
    }
}