ProjectDDD/Assets/_DDD/_Scripts/GameUi/New/RestaurantManagementViewModel.cs

using System.Linq;
using UnityEngine;

namespace DDD
{
    /// <summary>
    /// 레스토랑 관리 UI의 ViewModel
    /// 기존 RestaurantManagementUi의 상태 관리와 비즈니스 로직을 담당
    /// </summary>
    public class RestaurantManagementViewModel : SimpleViewModel, IEventHandler<TodayMenuRemovedEvent>
    {
        // 홀드 진행 상태 관리
        [SerializeField] private float _holdCompleteTime = 1f;
        private bool _isHolding;
        
        private float _holdProgress;
        public float HoldProgress
        {
            get => _holdProgress;
            private set
            {
                if (SetField(ref _holdProgress, value))
                {
                    OnPropertyChanged(nameof(NormalizedHoldProgress));
                }
            }
        }
        
        /// <summary>
        /// 홀드 진행률을 0~1 범위로 변환한 값
        /// </summary>
        public float NormalizedHoldProgress => _holdCompleteTime <= 0f ? 0f : Mathf.Clamp01(_holdProgress / _holdCompleteTime);
        
        // 탭 상태 관리
        private SectionButtonType _currentSection = SectionButtonType.Menu;
        private InventoryCategoryType _currentCategory = InventoryCategoryType.Food;

        /// <summary>
        /// 현재 선택된 섹션
        /// </summary>
        public SectionButtonType CurrentSection
        {
            get => _currentSection;
            set => SetField(ref _currentSection, value);
        }

        /// <summary>
        /// 현재 선택된 카테고리
        /// </summary>
        public InventoryCategoryType CurrentCategory
        {
            get => _currentCategory;
            set => SetField(ref _currentCategory, value);
        }

        /// <summary>
        /// 배치 완료 가능 여부 (체크리스트 완료 상태)
        /// </summary>
        public bool CanCompleteBatch => RestaurantState.Instance.ManagementState.GetChecklistStates().All(state => state);

        public override void Initialize()
        {
            base.Initialize();
            RegisterEvents();
            ResetHoldState();
        }

        public override void Cleanup()
        {
            base.Cleanup();
            UnregisterEvents();
        }

        private void RegisterEvents()
        {
            EventBus.Register<TodayMenuRemovedEvent>(this);
        }

        private void UnregisterEvents()
        {
            EventBus.Unregister<TodayMenuRemovedEvent>(this);
        }

        /// <summary>
        /// 홀드 진행 업데이트 (View에서 Update마다 호출)
        /// </summary>
        public void UpdateHoldProgress()
        {
            if (_isHolding == false) return;

            if (_holdCompleteTime <= 0f)
            {
                ProcessCompleteBatch();
                return;
            }

            var deltaTime = Time.deltaTime;
            HoldProgress += deltaTime;

            if (HoldProgress >= _holdCompleteTime)
            {
                ProcessCompleteBatch();
            }
        }

        /// <summary>
        /// 홀드 시작
        /// </summary>
        public void StartHold()
        {
            _isHolding = true;
            HoldProgress = 0f;
        }

        /// <summary>
        /// 홀드 취소
        /// </summary>
        public void CancelHold()
        {
            ResetHoldState();
        }

        private void ResetHoldState()
        {
            _isHolding = false;
            HoldProgress = 0f;
        }

        /// <summary>
        /// 배치 완료 처리
        /// </summary>
        private void ProcessCompleteBatch()
        {
            ResetHoldState();

            if (CanCompleteBatch)
            {
                // 배치 완료 - UI 닫기 이벤트 발생
                OnBatchCompleted?.Invoke();
            }
            else
            {
                // 체크리스트 미완료 - 실패 팝업 표시 이벤트 발생
                OnChecklistFailed?.Invoke();
            }
        }

        /// <summary>
        /// 섹션 탭 선택 처리
        /// </summary>
        public void SetSection(SectionButtonType section)
        {
            CurrentSection = section;
            
            // 섹션 변경 시 해당 섹션의 첫 번째 카테고리로 설정
            switch (section)
            {
                case SectionButtonType.Menu:
                    OnMenuSectionSelected?.Invoke();
                    break;
                case SectionButtonType.Cookware:
                    OnCookwareSectionSelected?.Invoke();
                    break;
            }
        }

        /// <summary>
        /// 카테고리 탭 선택 처리
        /// </summary>
        public void SetCategory(InventoryCategoryType category)
        {
            CurrentCategory = category;
            OnCategoryChanged?.Invoke(category);
        }

        /// <summary>
        /// 탭 이동 (이전/다음)
        /// </summary>
        public void MoveTab(int direction)
        {
            OnTabMoved?.Invoke(direction);
        }

        /// <summary>
        /// 현재 선택된 UI 요소와 상호작용
        /// </summary>
        public void InteractWithSelected()
        {
            OnInteractRequested?.Invoke();
        }

        /// <summary>
        /// UI 닫기
        /// </summary>
        public void CloseUi()
        {
            OnCloseRequested?.Invoke();
        }

        // View에서 구독할 이벤트들
        public System.Action OnBatchCompleted;
        public System.Action OnChecklistFailed;
        public System.Action OnMenuSectionSelected;
        public System.Action OnCookwareSectionSelected;
        public System.Action<InventoryCategoryType> OnCategoryChanged;
        public System.Action<int> OnTabMoved;
        public System.Action OnInteractRequested;
        public System.Action OnCloseRequested;

        // 이벤트 핸들러
        public void Invoke(TodayMenuRemovedEvent evt)
        {
            SetCategory(evt.InventoryCategoryType);
            OnMenuCategorySelected?.Invoke(evt.InventoryCategoryType);
        }

        public System.Action<InventoryCategoryType> OnMenuCategorySelected;
    }
}