using UnityEngine;
using UnityEditor;

namespace GameSystems.Optimization.Editor
{
    [CustomEditor(typeof(PlayerRangeManager))]
    public sealed class PlayerRangeManagerEditor : UnityEditor.Editor
    {
        private SerializedProperty _configProperty;
        private SerializedProperty _parentsProperty; // ⭐ 변수명 일치

        private void OnEnable()
        {
            _configProperty = serializedObject.FindProperty("_config");
            // ⭐ [에러 해결] 리스트 이름 '_environmentParents'를 정확히 찾아옵니다.
            _parentsProperty = serializedObject.FindProperty("_environmentParents");
        }

        public override void OnInspectorGUI()
        {
            PlayerRangeManager manager = (PlayerRangeManager)target;
            serializedObject.Update();

            // === 헤더 ===
            DrawMainHeader(); // ⭐ [경고 해결] DrawHeader 이름을 DrawMainHeader로 변경

            EditorGUILayout.Space(5);

            // === 설정 영역 ===
            EditorGUILayout.BeginVertical(EditorStyles.helpBox);
            GUILayout.Label("필수 설정", EditorStyles.boldLabel);
            EditorGUILayout.PropertyField(_configProperty);

            // ⭐ [에러 해결] 리스트를 안전하게 그립니다.
            if (_parentsProperty != null)
            {
                EditorGUILayout.PropertyField(_parentsProperty, new GUIContent("Environment Parents"), true);
            }

            EditorGUILayout.EndVertical();

            // === 실시간 통계 ===
            if (Application.isPlaying && manager.IsInitialized)
            {
                EditorGUILayout.Space(5);
                EditorGUILayout.BeginVertical(EditorStyles.helpBox);
                GUILayout.Label("실시간 통계", EditorStyles.boldLabel);
                EditorGUILayout.LabelField("총 오브젝트:", manager.TotalObjectCount.ToString());
                EditorGUILayout.LabelField("표시 중:", manager.VisibleObjectCount.ToString());
                EditorGUILayout.LabelField("컬링 효율:", $"{(manager.CullingEfficiency * 100f):F1}%");
                EditorGUILayout.EndVertical();
            }

            EditorGUILayout.Space(5);

            // === 컨트롤 버튼 ===
            if (GUILayout.Button("🔄 오브젝트 목록 새로고침", GUILayout.Height(30)))
            {
                if (Application.isPlaying) manager.RefreshObjectList();
            }

            serializedObject.ApplyModifiedProperties();
            if (Application.isPlaying) Repaint();
        }

        private void DrawMainHeader() // ⭐ 이름 변경됨
        {
            EditorGUILayout.BeginVertical(EditorStyles.helpBox);
            GUILayout.Label("Player Range Manager", new GUIStyle(EditorStyles.boldLabel) { fontSize = 14, alignment = TextAnchor.MiddleCenter });
            EditorGUILayout.EndVertical();
        }
    }
}