using System;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

namespace Fort23.Mono
{
    public static class UIHelper
    {
        public static void IsGray(this Transform transform, bool isGray = true)
        {
            if (isGray)
            {
                Gray(transform);
            }
            else
            {
                RecoverColor(transform);
            }
        }

        public static void Gray(this Transform transform, bool enableButton = true)
        {
            if (transform.GetComponent<Button>() != null)
            {
                transform.GetComponent<Button>().enabled = enableButton;
                if (transform.GetComponent<Button>().image?.GetComponent<MyImage>() != null)
                    transform.GetComponent<Button>().image.GetComponent<MyImage>().IsGray = true;
            }
            else if (transform.GetComponent<MyImage>() != null)
            {
                transform.GetComponent<MyImage>().IsGray = true;
            }
            else if (transform.GetComponent<Text>() != null)
            {
                transform.GetComponent<Text>().material = UIManager.Instance.uiGray;
            }
            // else if (transform.GetComponent<MyTextMeshProUGUI>() != null)
            // {
            //     transform.GetComponent<MyTextMeshProUGUI>().Gray();
            // }

            if (transform.childCount > 0)
            {
                for (int i = 0; i < transform.childCount; i++)
                {
                    Gray(transform.GetChild(i).transform, enableButton);
                }
            }
        }

        public static void RecoverColor(this Transform transform)
        {
            // transform.Opaque();
            if (transform.GetComponent<Button>() != null)
            {
                transform.GetComponent<Button>().enabled = true;
                if (transform.GetComponent<Button>().image?.GetComponent<MyImage>() != null)
                    transform.GetComponent<Button>().image.GetComponent<MyImage>().IsGray = false;
            }
            else if (transform.GetComponent<MyImage>() != null)
            {
                transform.GetComponent<MyImage>().IsGray = false;
            }
            else if (transform.GetComponent<Text>() != null)
            {
                transform.GetComponent<Text>().material = null;
            }
            // else if (transform.GetComponent<MyTextMeshProUGUI>() != null)
            // {
            //     transform.GetComponent<MyTextMeshProUGUI>().Recover();
            // }

            if (transform.childCount > 0)
            {
                for (int i = 0; i < transform.childCount; i++)
                {
                    RecoverColor(transform.GetChild(i).transform);
                }
            }
        }

        private static Color GrayedColor(Color color)
        {
            float gray = Vector3.Dot(new Vector3(color.r, color.g, color.b), new Vector3(0.299f, 0.587f, 0.114f));
            return new Color(gray, gray, gray, color.a);
        }

        /// <summary>
        /// 半透明
        /// </summary>
        /// <param name="transform"></param>
        public static void Translucency(this Transform transform)
        {
            RecoverColor(transform);
            Color color = new Color(0.34f, 0.34f, 0.34f);
            if (transform.GetComponent<Button>() != null)
            {
                if (transform.GetComponent<Button>().image != null &&
                    transform.GetComponent<Button>().image.GetComponent<MyImage>().icon_name != string.Empty)
                    transform.GetComponent<Button>().image.color = color;
            }
            else if (transform.GetComponent<MyImage>() != null)
            {
                if (transform.GetComponent<MyImage>().icon_name != String.Empty)
                    transform.GetComponent<MyImage>().color = color;
            }
            // else if (transform.GetComponent<Text>() != null)
            // {
            //     // transform.GetComponent<Text>().color = color;
            //     transform.GetComponent<Text>().Translucency();
            // }

            if (transform.childCount > 0)
            {
                for (int i = 0; i < transform.childCount; i++)
                {
                    Translucency(transform.GetChild(i).transform);
                }
            }
        }

        /// <summary>
        /// 从半透明中恢复默认
        /// </summary>
        /// <param name="transform"></param>
        public static void Opaque(this Transform transform)
        {
            Color color = new Color(1, 1, 1);
            if (transform.GetComponent<Button>() != null)
            {
                if (transform.GetComponent<Button>().image != null)
                {
                    MyImage myImage = transform.GetComponent<Button>().image.GetComponent<MyImage>();
                    if (myImage != null && myImage.icon_name != string.Empty)
                        transform.GetComponent<Button>().image.color = color;
                }
            }
            else if (transform.GetComponent<MyImage>() != null)
            {
                if (transform.GetComponent<MyImage>().icon_name != String.Empty)
                {
                    transform.GetComponent<MyImage>().color = color;
                }
            }
            // else if (transform.GetComponent<Text>() != null)
            // {
            //     // transform.GetComponent<Text>().color = color;
            //     transform.GetComponent<Text>().Recover();
            // }

            if (transform.childCount > 0)
            {
                for (int i = 0; i < transform.childCount; i++)
                {
                    Opaque(transform.GetChild(i).transform);
                }
            }
        }
    }
}