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

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, ICardClickHandler
    {
        private CardContext _context;
        private ICardSystemSettings _settings;
        private Vector3 _originalScale;
        private Transform _originalParent;
        private Vector3 _originalLocalPosition;
        private Quaternion _originalLocalRotation;
        private Vector3 _originalWorldPosition;
        
        // 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()
        {
            // Ensure card front is visible and facing camera
            if (_context.CardDisplay != null)
            {
                _context.CardDisplay.gameObject.SetActive(true);
                _context.CardDisplay.transform.localRotation = Quaternion.Euler(0, 0, 0);
            }
            
            // Store original transform for restoration
            _originalScale = _context.RootTransform.localScale;
            _originalParent = _context.RootTransform.parent;
            _originalLocalPosition = _context.RootTransform.localPosition;
            _originalLocalRotation = _context.RootTransform.localRotation;
            _originalWorldPosition = _context.RootTransform.position;
            
            // Notify page to show backdrop and reparent card to top layer (preserve world transform)
            OnEnlargeRequested?.Invoke(this);
            
            // Animate into center and scale up significantly
            if (_context.Animator != null)
            {
                // Move to center of enlarged container (assumes zero is centered)
                _context.Animator.AnimateLocalPosition(Vector3.zero, _settings.ScaleDuration);
                // Enlarge using settings-controlled scale
                _context.Animator.PlayEnlarge(_settings.AlbumCardEnlargedScale, _settings.ScaleDuration);
            }
            
            Logging.Debug($"[CardAlbumEnlargedState] Card enlarged from album: {_context.CardData?.Name}");
        }
        
        public void OnCardClicked(CardContext context)
        {
            // Click to shrink back (play reverse of opening animation)
            Logging.Debug($"[CardAlbumEnlargedState] Card clicked while enlarged, shrinking back");
            
            // Ask page to hide backdrop (state will handle moving back & reparenting)
            OnShrinkRequested?.Invoke(this);
            
            // Animate back to original world position + shrink to original scale
            float duration = _settings.ScaleDuration;
            
            // Move using world-space tween so we land exactly on the original position
            Tween.Position(context.RootTransform, _originalWorldPosition, duration, 0f, Tween.EaseInOut);
            
            if (context.Animator != null)
            {
                context.Animator.PlayShrink(_originalScale, duration, onComplete: () =>
                {
                    // Reparent back to original hierarchy and restore local transform
                    context.RootTransform.SetParent(_originalParent, true);
                    context.RootTransform.localPosition = _originalLocalPosition;
                    context.RootTransform.localRotation = _originalLocalRotation;
                    
                    // Transition back to placed state
                    context.StateMachine.ChangeState(CardStateNames.PlacedInSlot);
                });
            }
            else
            {
                // Fallback if no animator: snap back
                context.RootTransform.position = _originalWorldPosition;
                context.RootTransform.SetParent(_originalParent, true);
                context.RootTransform.localPosition = _originalLocalPosition;
                context.RootTransform.localRotation = _originalLocalRotation;
                context.StateMachine.ChangeState(CardStateNames.PlacedInSlot);
            }
        }
        
        /// <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;
            }
        }
    }
}