using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using Snxxz.UI;
using UnityEngine.UI;

[CustomEditor(typeof(TextUpdate))]
public class LabelTextColorTool : Editor
{
    [SerializeField] TextUpdate m_Target;

    [SerializeField] List<Text> allTexts = new List<Text>();

    [SerializeField] GUIStyle m_LabelStyle;

    [SerializeField] bool m_ShowTextColor;

    [SerializeField] Color m_LabelColor=Color.black;
    [SerializeField] int m_LabelSize = 12;
    [SerializeField] Vector3 m_Offset = Vector3.zero;
    [SerializeField] bool m_HexColor = false;
    [SerializeField] Color32 m_UnShowColor = Color.white;

    void FindAllText()
    {
        allTexts.Clear();
        FindChildText(m_Target.transform, ref allTexts);
    }

    private void OnEnable()
    {
        m_LabelStyle = new GUIStyle();
        m_LabelStyle.fontSize = 12;
        m_LabelStyle.normal.textColor = Color.green;
    }

    void FindChildText(Transform _transform, ref List<Text> _allTexts)
    {
        if (_transform != null)
        {
            var text = _transform.GetComponent<Text>();
            if (text != null)
            {
                _allTexts.Add(text);
            }

            for (int i = 0; i < _transform.childCount; i++)
            {
                FindChildText(_transform.GetChild(i), ref _allTexts);
            }

        }
    }

    public override void OnInspectorGUI()
    {
        base.OnInspectorGUI();
        m_Target = target as TextUpdate;
        GUILayout.Space(20);
        if (GUILayout.Button("显示字色"))
        {
            if (m_Target != null)
            {
                FindAllText();
            }
        }
        m_LabelColor = EditorGUILayout.ColorField("字色", m_LabelColor);
        m_UnShowColor = EditorGUILayout.ColorField("屏蔽字色", m_UnShowColor);
        m_LabelSize = EditorGUILayout.IntField("字体大小", m_LabelSize);
        m_Offset = EditorGUILayout.Vector3Field("偏移", m_Offset);
        m_HexColor = EditorGUILayout.Toggle("16进制", m_HexColor);
    }

    private void OnSceneGUI()
    {
        for (int i = 0; i < allTexts.Count; i++)
        {
            if (allTexts[i] == null)
            {
                allTexts.RemoveAt(i);
                i--;
                continue;
            }
            var _pos = allTexts[i].rectTransform.position;
            Color32 m_Color = allTexts[i].color;
            if (m_UnShowColor.Equals(m_Color))
            {
                continue;
            }
            if (m_ShowTextColor)
            {
                allTexts[i].gameObject.SetActive(false);
            }
            else
            {
                allTexts[i].gameObject.SetActive(true);
            }
            m_LabelStyle.normal.textColor = m_LabelColor;
            m_LabelStyle.fontSize = m_LabelSize;
            _pos += m_Offset;
            Handles.Label(_pos,m_HexColor? GetHexColor(m_Color): m_Color.ToString(), m_LabelStyle);
            HandleUtility.Repaint();
        }
    }

    public string GetHexColor(Color32 _color)
    {
        return StringUtility.Contact(_color.r.ToString("X2"),
            _color.g.ToString("X2"),
            _color.b.ToString("X2"),
            _color.a.ToString("X2"));
    }
}