EnglewoodLAB/Assets/Scripts/Studio/Command/PropertyChangeCommand.cs

#nullable enable
using System;
using UnityEngine;
using UVC.Core;
using UVC.Studio.Manager;
using UVC.UI.Commands;
using UVC.UIToolkit;

namespace UVC.Studio.Command
{
    /// <summary>
    /// PropertyWindow에서 속성 변경 시 사용하는 커맨드 (Undo/Redo 지원)
    /// </summary>
    public class PropertyChangeCommand : IUndoableCommand
    {
        public string Description { get; }

        private readonly string _propertyId;
        private readonly object? _oldValue;
        private readonly object? _newValue;
        private readonly Action<string, object?>? _applyValueAction;

        /// <summary>
        /// 생성자
        /// </summary>
        /// <param name="propertyId">속성 ID</param>
        /// <param name="propertyName">속성 이름 (표시용)</param>
        /// <param name="oldValue">이전 값</param>
        /// <param name="newValue">새 값</param>
        /// <param name="applyValueAction">값 적용 함수 (propertyId, value) => void</param>
        public PropertyChangeCommand(
            string propertyId,
            string propertyName,
            object? oldValue,
            object? newValue,
            Action<string, object?>? applyValueAction = null)
        {
            _propertyId = propertyId;
            _oldValue = oldValue;
            _newValue = newValue;
            _applyValueAction = applyValueAction;
            Description = $"속성 변경: {propertyName}";
        }

        public void Execute(object? parameter = null)
        {
            // 이미 PropertyWindow에서 값이 변경되었으므로
            // 여기서는 추가 작업 없음 (RecordCommand용)
            Debug.Log($"[PropertyChangeCommand] Execute: {_propertyId} = {_newValue}");
        }

        public void Undo(object? parameter = null)
        {
            _applyValueAction?.Invoke(_propertyId, _oldValue);
            Debug.Log($"[PropertyChangeCommand] Undo: {_propertyId} = {_oldValue}");
        }

        public void Redo()
        {
            _applyValueAction?.Invoke(_propertyId, _newValue);
            Debug.Log($"[PropertyChangeCommand] Redo: {_propertyId} = {_newValue}");
        }

        public bool CanMerge(IUndoableCommand other)
        {
            // 같은 속성에 대한 연속 변경은 병합
            return other is PropertyChangeCommand otherCmd &&
                   otherCmd._propertyId == _propertyId;
        }

        public void Merge(IUndoableCommand other)
        {
            // 이 Command의 oldValue는 유지하고
            // newValue만 최신으로 업데이트
            // (불변 객체이므로 실제로는 새 Command 생성 필요하지만
            //  여기서는 병합 시 새 값만 참조)
        }
    }

    /// <summary>
    /// Transform 속성 변경 전용 커맨드
    /// Position, Rotation, Scale 변경 시 사용
    /// </summary>
    public class TransformPropertyChangeCommand : IUndoableCommand
    {
        public string Description { get; }

        private readonly Transform _transform;
        private readonly string _propertyType; // "position", "rotation", "scale"
        private readonly Vector3 _oldValue;
        private readonly Vector3 _newValue;

        public TransformPropertyChangeCommand(
            Transform transform,
            string propertyType,
            Vector3 oldValue,
            Vector3 newValue)
        {
            _transform = transform;
            _propertyType = propertyType.ToLower();
            _oldValue = oldValue;
            _newValue = newValue;

            Description = _propertyType switch
            {
                "position" => "위치 변경",
                "rotation" => "회전 변경",
                "scale" => "크기 변경",
                _ => "Transform 변경"
            };
        }

        public void Execute(object? parameter = null)
        {
            ApplyValue(_newValue);
        }

        public void Undo(object? parameter = null)
        {
            ApplyValue(_oldValue);
            Debug.Log($"[TransformPropertyChangeCommand] Undo: {_propertyType} = {_oldValue}");
        }

        public void Redo()
        {
            ApplyValue(_newValue);
            Debug.Log($"[TransformPropertyChangeCommand] Redo: {_propertyType} = {_newValue}");
        }

        private void ApplyValue(Vector3 value)
        {
            if (_transform == null) return;

            switch (_propertyType)
            {
                case "position":
                    _transform.localPosition = value;
                    break;
                case "rotation":
                    _transform.localEulerAngles = value;
                    break;
                case "scale":
                    _transform.localScale = value;
                    break;
            }

            // PropertyWindow UI 업데이트
            UpdatePropertyWindowUI(value);

            // Gizmo 새로고침
            GizmoUndoBridge.Instance?.RefreshGizmos();
        }

        /// <summary>
        /// PropertyWindow UI를 업데이트합니다.
        /// </summary>
        private void UpdatePropertyWindowUI(Vector3 value)
        {
            if (InjectorAppContext.Instance == null) return;

            var propertyWindow = InjectorAppContext.Instance.Get<UTKPropertyTabListWindow>();
            if (propertyWindow == null) return;

            string propertyId = _propertyType switch
            {
                "position" => "transform_position",
                "rotation" => "transform_rotation",
                "scale" => "transform_scale",
                _ => ""
            };

            if (!string.IsNullOrEmpty(propertyId))
            {
                propertyWindow.SetPropertyValue(propertyId, value);
            }
        }

        public bool CanMerge(IUndoableCommand other)
        {
            // PropertyWindow에서의 변경은 각각 독립적인 Undo로 기록
            // (병합하면 중간 상태가 손실됨)
            return false;
        }

        public void Merge(IUndoableCommand other)
        {
            // 병합하지 않음
        }
    }
}