using Core;
using Core.SaveLoad;
using UnityEngine;
using UnityEngine.EventSystems;
using AppleHills.Core.Settings;

namespace UI.CardSystem.StateMachine.States
{
    /// <summary>
    /// Album enlarged state - card is enlarged when clicked from album slot.
    /// Different from EnlargedNewState as it doesn't show "NEW" badge.
    /// </summary>
    public class CardAlbumEnlargedState : AppleState, IPointerClickHandler
    {
        private CardContext _context;
        private ICardSystemSettings _settings;
        private Vector3 _originalScale;
        private Transform _originalParent;
        private Vector3 _originalLocalPosition;
        private Quaternion _originalLocalRotation;
        
        // Events for page to manage backdrop and reparenting
        public event System.Action<CardAlbumEnlargedState> OnEnlargeRequested;
        public event System.Action<CardAlbumEnlargedState> OnShrinkRequested;
        
        private void Awake()
        {
            _context = GetComponentInParent<CardContext>();
            _settings = GameManager.GetSettingsObject<ICardSystemSettings>();
        }
        
        public override void OnEnterState()
        {
            // Store original transform for restoration
            _originalScale = _context.RootTransform.localScale;
            _originalParent = _context.RootTransform.parent;
            _originalLocalPosition = _context.RootTransform.localPosition;
            _originalLocalRotation = _context.RootTransform.localRotation;
            
            // Notify page to show backdrop and reparent card to top layer
            OnEnlargeRequested?.Invoke(this);
            
            // Enlarge the card using album scale setting
            if (_context.Animator != null)
            {
                _context.Animator.PlayEnlarge(_settings.AlbumCardEnlargedScale);
            }
            
            Logging.Debug($"[CardAlbumEnlargedState] Card enlarged from album: {_context.CardData?.Name}");
        }
        
        public void OnPointerClick(PointerEventData eventData)
        {
            // Click to shrink back
            Logging.Debug($"[CardAlbumEnlargedState] Card clicked while enlarged, shrinking back");
            
            // Notify page to prepare for shrink
            OnShrinkRequested?.Invoke(this);
            
            // Shrink animation, then transition back
            if (_context.Animator != null)
            {
                _context.Animator.PlayShrink(_originalScale, onComplete: () =>
                {
                    _context.StateMachine.ChangeState("PlacedInSlotState");
                });
            }
        }
        
        /// <summary>
        /// Get original parent for restoration
        /// </summary>
        public Transform GetOriginalParent() => _originalParent;
        
        /// <summary>
        /// Get original local position for restoration
        /// </summary>
        public Vector3 GetOriginalLocalPosition() => _originalLocalPosition;
        
        /// <summary>
        /// Get original local rotation for restoration
        /// </summary>
        public Quaternion GetOriginalLocalRotation() => _originalLocalRotation;
        
        private void OnDisable()
        {
            // Restore original scale when exiting
            if (_context?.RootTransform != null)
            {
                _context.RootTransform.localScale = _originalScale;
            }
        }
    }
}