#nullable enable
using UnityEngine;
using UVC.UI.Commands;
using UVC.Studio.Manager;
using UVC.Studio.Config;

namespace UVC.Studio.Command
{
    /// <summary>
    /// 평면 생성 커맨드 (Undo/Redo 지원)
    /// </summary>
    public class EditCreatePlaneCommand : IUndoableCommand
    {
        public string Description => "평면 생성";

        private readonly StageObjectManager _stageObjectManager;

        // Undo용 상태 저장
        private string? _createdStageObjectId;
        private GameObject? _createdPlane;
        private Vector3 _position;
        private Vector3 _scale;

        public EditCreatePlaneCommand(StageObjectManager stageObjectManager)
        {
            _stageObjectManager = stageObjectManager;
        }

        public void Execute(object? parameter = null)
        {
            // 평면 생성
            _createdPlane = GameObject.CreatePrimitive(PrimitiveType.Plane);
            _createdPlane.name = "Plane";

            // 기본 위치 설정
            _position = Vector3.zero;
            _scale = Vector3.one;
            _createdPlane.transform.position = _position;
            _createdPlane.transform.localScale = _scale;

            // Plane용 Equipment 생성 (기본 프리미티브)
            var planeEquipment = new EquipmentItem
            {
                id = "primitive_plane",
                label = "Plane"
            };

            // StageObjectManager에 등록
            var stageObject = _stageObjectManager.Register(planeEquipment, _createdPlane);
            _createdStageObjectId = stageObject.Id;

            Debug.Log($"[EditCreatePlaneCommand] 평면 생성됨: {_createdStageObjectId}");
        }

        public void Undo(object? parameter = null)
        {
            if (_createdStageObjectId != null)
            {
                _stageObjectManager.Unregister(_createdStageObjectId);
                _createdPlane = null;
                Debug.Log($"[EditCreatePlaneCommand] Undo: 평면 삭제됨");
            }
        }

        public void Redo()
        {
            // 평면 다시 생성
            _createdPlane = GameObject.CreatePrimitive(PrimitiveType.Plane);
            _createdPlane.name = "Plane";
            _createdPlane.transform.position = _position;
            _createdPlane.transform.localScale = _scale;

            var planeEquipment = new EquipmentItem
            {
                id = "primitive_plane",
                label = "Plane"
            };

            var stageObject = _stageObjectManager.Register(planeEquipment, _createdPlane);
            _createdStageObjectId = stageObject.Id;

            Debug.Log($"[EditCreatePlaneCommand] Redo: 평면 다시 생성됨: {_createdStageObjectId}");
        }

        public bool CanMerge(IUndoableCommand other) => false;
        public void Merge(IUndoableCommand other) { }
    }
}