using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using XRTool.Util;

namespace XRTool.WorldUI
{
    public enum ScaleType
    {
        UnChange = 0,
        Min = 1,
        Max = 2,
        Math
    }
    public class XRBoundLine : MonoBehaviour
    {
        [HideInInspector]
        public Transform[] horizontals;
        [HideInInspector]
        public Transform[] verticals;
        [HideInInspector]
        public Transform[] corners;
        /// <summary>
        /// 厚度比例
        /// </summary>
        private const float thicknessScale = 0.0145f;
        private const float BoundLen = 0.875f;
        private const float BoundCorner = 0.0625f;
        private float width;
        private float height;
        private float thickness;
        private bool isLocal = true;
        [HideInInspector]
        public ScaleType scaleType = ScaleType.Min;
        public Vector3 Scale
        {
            get
            {
                if (isLocal)
                {
                    return transform.localScale;
                }
                return transform.lossyScale;
            }
            set
            {
                if (isLocal)
                {
                    transform.localScale = value;
                }
                else
                {
                    Vector3 scale = value;
                    scale.x *= transform.localScale.x / transform.lossyScale.x;
                    scale.y *= transform.localScale.y / transform.lossyScale.y;
                    scale.z *= transform.localScale.z / transform.lossyScale.z;
                    transform.localScale = value;
                }
            }
        }

        private void Awake()
        {
            width = transform.localScale.x;
            height = transform.localScale.y;
            thickness = transform.localScale.z;
        }
        /// <summary>
        /// 设置厚度
        /// </summary>
        public void SetThicknessScale(float thickness = thicknessScale)
        {
            Vector3 scale = transform.localScale;
            scale.z = thickness / thicknessScale;
            transform.localScale = scale;

        }
        /// <summary>
        /// 同步UI的背景框比例
        /// </summary>
        /// <param name="scale"></param>
        public void SetLine(Vector2 scale)
        {
            if (scale.x > 0 && scale.y > 0)
            {
                Vector3 tmp = transform.localScale;
                tmp.x = scale.x;
                tmp.y = scale.y;
                transform.localScale = tmp;
                Vector3 normalScale = Vector3.one;
                Vector3 h = Vector3.one;
                Vector3 v = Vector3.one;
                if (scaleType == ScaleType.UnChange)
                {

                }
                else if (scaleType == ScaleType.Min)
                {
                    if (scale.x > scale.y)
                    {
                        normalScale.x = tmp.y / tmp.x;
                        float bei = tmp.x / tmp.y;
                        h.x = (BoundLen * bei / 2 + (bei * (1 - BoundLen) / 2 - BoundCorner)) / (BoundLen * bei / 2);
                    }
                    else
                    {
                        normalScale.y = tmp.x / tmp.y;
                        float bei = tmp.y / tmp.x;
                        v.y = (BoundLen * bei / 2 + (bei * (1 - BoundLen) / 2 - BoundCorner)) / (BoundLen * bei / 2);
                    }
                }
                else if (scaleType == ScaleType.Max)
                {
                    if (scale.x < scale.y)
                    {
                        normalScale.x = tmp.y / tmp.x;
                        float bei = tmp.x / tmp.y;
                        h.x = (BoundLen * bei / 2 + (bei * (1 - BoundLen) / 2 - BoundCorner)) / (BoundLen * bei / 2);
                    }
                    else
                    {
                        normalScale.y = tmp.x / tmp.y;
                        float bei = tmp.y / tmp.x;
                        v.y = (BoundLen * bei / 2 + (bei * (1 - BoundLen) / 2 - BoundCorner)) / (BoundLen * bei / 2);
                    }
                }

                for (int i = 0; i < corners.Length; i++)
                {
                    Transform corner = corners[i];
                    corner.localScale = normalScale;
                }
                ///同步水平长度
                for (int i = 0; i < horizontals.Length; i++)
                {
                    Transform horizontal = horizontals[i];
                    horizontal.localScale = h;

                }
                ///同步垂直长度
                for (int i = 0; i < verticals.Length; i++)
                {
                    Transform vertical = verticals[i];
                    vertical.localScale = v;
                }
            }
        }
        /// <summary>
        /// 设置框的长宽
        /// </summary>
        /// <param name="width"></param>
        /// <param name="height"></param>
        public void SetLine(float width = 1, float height = 1, float thickness = thicknessScale)
        {
            if (thickness != this.thickness)
            {
                SetThicknessScale(thickness);
                this.thickness = thickness;
            }
            if (this.width != width || this.height != height)
            {
                ///比例相差不大，直接同比例缩放
                if (Mathf.Abs(width - height) < 0.0001f)
                {
                    Vector3 scale = transform.localScale;
                    scale.x = scale.y = width;
                    transform.localScale = scale;
                }
                else
                {

                }
                this.width = width;
                this.height = height;
            }

        }
    }
}