using UnityEditor;
using UnityEditor.UI;
using UnityEngine;
using XRTool.Util;

namespace XRTool.WorldUI
{
    [InitializeOnLoad]
    [CustomEditor(typeof(XRIcon))]
    public class XRIconEditor : ImageEditor
    {
        private XRIcon xrIcon;
        private SerializedProperty icon;

        [MenuItem("GameObject/XRUI/XRIcon", priority = 10)]
        static void Init()
        {
            var obj = Instantiate(Resources.Load<XRIcon>(typeof(XRIcon).Name));
            obj.name = (typeof(XRIcon).Name);
            if (obj)
            {
                var parent = Selection.activeGameObject;
                if (!parent)
                {
                    var canvas = GameObject.FindObjectsOfType(typeof(Canvas));
                    if (canvas != null)
                    {
                        for (int i = 0; i < canvas.Length; i++)
                        {
                            if ((canvas[i] as Canvas).renderMode == RenderMode.WorldSpace)
                            {
                                parent = (canvas[i] as Canvas).gameObject;
                                break;
                            }
                        }
                    }
                }
                UnityUtil.SetParent(parent ? parent.transform : null, obj.transform);
                Selection.activeGameObject = obj.gameObject;
            }
        }
        protected override void OnEnable()
        {
            base.OnEnable();
            icon = serializedObject.FindProperty("icon");
            xrIcon = target as XRIcon;
            xrIcon.AutoSetSprite();
        }
        /// <summary>
        /// 
        /// </summary>
        public override void OnInspectorGUI()
        {
            base.OnInspectorGUI();
            EditorGUILayout.PropertyField(icon, new GUIContent("图标"));
            serializedObject.ApplyModifiedProperties();
            if (GUI.changed)
            {
                if (xrIcon)
                {
                    xrIcon.AutoSetSprite();
                }
            }
        }
    }
}