using BracerLib.Data;
using UnityEditor;
using UnityEngine;
using UnityEngine.TestTools;

namespace BracerLib.Editor.Data
{
    /// <summary>
    /// Referenced via: https://discussions.unity.com/t/select-only-one-layer-in-the-inspector-select-only-one-layer-in-the-inspector/230727
    /// </summary>
    [CustomPropertyDrawer(typeof(Layer))]
    [ExcludeFromCoverage]
    public class LayerPropertyDrawer : PropertyDrawer
    {
        public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
        {
            EditorGUI.BeginProperty(position, GUIContent.none, property);
            var layerIndex = property.FindPropertyRelative("layerIndex");

            position = EditorGUI.PrefixLabel(position, GUIUtility.GetControlID(FocusType.Passive), label);
            if (layerIndex != null)
                layerIndex.intValue = EditorGUI.LayerField(position, layerIndex.intValue);
            EditorGUI.EndProperty();
        }
    }
}