using UnityEditor;
using UnityEngine;
using IndianOceanAssets.Engine2_5D;

namespace IndianOceanAssets.EditorTools
{
    [InitializeOnLoad]
    public class EnemySpawnPointSceneGUI
    {
        /// <summary>全局开关：是否在 Scene 视图中显示所有出生点编号</summary>
        public static bool ShowLabels = true;

        static EnemySpawnPointSceneGUI()
        {
            SceneView.duringSceneGui += OnSceneGUI;
        }

        static void OnSceneGUI(SceneView sceneView)
        {
            if (!ShowLabels) return;

            var spawnPoints = Object.FindObjectsByType<EnemySpawnPoint>(FindObjectsSortMode.None);
            foreach (var sp in spawnPoints)
            {
                if (sp.Index < 0) continue;

                Vector3 labelPos = sp.transform.position + Vector3.up * 2.5f;
                Vector2 screenPos = HandleUtility.WorldToGUIPoint(labelPos);

                Handles.BeginGUI();
                GUIStyle style = new GUIStyle("Label")
                {
                    fontSize = 14,
                    fontStyle = FontStyle.Bold,
                    alignment = TextAnchor.MiddleCenter,
                    normal = { textColor = Color.yellow }
                };
                GUIContent content = new GUIContent($"#{sp.Index}");
                Vector2 size = style.CalcSize(content);
                Rect rect = new Rect(screenPos.x - size.x * 0.5f, screenPos.y - size.y * 0.5f, size.x + 8, size.y + 4);
                EditorGUI.DrawRect(rect, new Color(0, 0, 0, 0.7f));
                GUI.Label(rect, content, style);
                Handles.EndGUI();
            }
        }
    }

    [CustomEditor(typeof(EnemySpawnPoint))]
    public class EnemySpawnPointEditor : UnityEditor.Editor
    {
        public override void OnInspectorGUI()
        {
            DrawDefaultInspector();

            EditorGUILayout.Space();
            EnemySpawnPointSceneGUI.ShowLabels = EditorGUILayout.Toggle(
                "显示所有编号", EnemySpawnPointSceneGUI.ShowLabels);
        }
    }
}