using Core;
using Core.SaveLoad;
using Data.CardSystem;
using UnityEngine;

namespace UI.CardSystem.StateMachine.States
{
    /// <summary>
    /// Placed in slot state - card is being/has been placed in an album slot.
    /// SMART STATE: Handles snap-to-slot animation on entry, then finalizes placement.
    /// </summary>
    public class CardPlacedInSlotState : AppleState, ICardClickHandler
    {
        private CardContext _context;
        private AlbumCardSlot _parentSlot;
        private AlbumCardSlot _targetSlotForAnimation; // Set by DraggingRevealedState for animated placement
        
        private void Awake()
        {
            _context = GetComponentInParent<CardContext>();
        }
        
        /// <summary>
        /// Set placement info from previous state (for animated placement from drag)
        /// </summary>
        public void SetPlacementInfo(AlbumCardSlot targetSlot)
        {
            _targetSlotForAnimation = targetSlot;
        }
        
        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);
            }
            
            // Check if this is animated placement (from drag) or direct placement (from spawn)
            if (_targetSlotForAnimation != null)
            {
                // Animated placement - play tween to slot
                Logging.Debug($"[CardPlacedInSlotState] Animating card '{_context.CardData?.Name}' to slot");
                AnimateToSlot(_targetSlotForAnimation);
                // Play card drop in album sound
                AudioManager.Instance.LoadAndPlayUIAudio("card_albumdrop", false);
            }
            else
            {
                // Direct placement (spawned in slot) - already positioned correctly
                // Disable dragging for spawned cards too
                var card = _context.GetComponent<Card>();
                if (card != null)
                {
                    card.SetDraggingEnabled(false);
                }
                Logging.Debug($"[CardPlacedInSlotState] Card '{_context.CardData?.Name}' directly placed in slot");
                AudioManager.Instance.LoadAndPlayUIAudio("card_albumdrop_deep", false);
            }
        }
        
        /// <summary>
        /// Animate card to slot position and finalize placement
        /// </summary>
        private void AnimateToSlot(AlbumCardSlot slot)
        {
            var card = _context.GetComponent<Card>();
            if (card == null) return;
            
            // Reparent to slot immediately, keeping world position
            card.transform.SetParent(slot.transform, true);
            
            // Tween position, scale, rotation simultaneously
            float tweenDuration = 0.4f;
            
            Pixelplacement.Tween.LocalPosition(card.transform, Vector3.zero, tweenDuration, 0f, Pixelplacement.Tween.EaseOutBack);
            Pixelplacement.Tween.LocalScale(card.transform, Vector3.one, tweenDuration, 0f, Pixelplacement.Tween.EaseOutBack);
            Pixelplacement.Tween.LocalRotation(card.transform, Quaternion.identity, tweenDuration, 0f, Pixelplacement.Tween.EaseOutBack,
                completeCallback: () => FinalizePlacement(card, slot));
        }
        
        /// <summary>
        /// Finalize placement after animation completes
        /// </summary>
        private void FinalizePlacement(Card card, AlbumCardSlot slot)
        {
            // Ensure final position/rotation
            card.transform.localPosition = Vector3.zero;
            card.transform.localRotation = Quaternion.identity;
            
            // Resize to match slot
            RectTransform cardRect = card.transform as RectTransform;
            RectTransform slotRect = slot.transform as RectTransform;
            if (cardRect != null && slotRect != null)
            {
                float targetHeight = slotRect.rect.height;
                cardRect.sizeDelta = new Vector2(cardRect.sizeDelta.x, targetHeight);
            }
            
            // Set parent slot
            _parentSlot = slot;
            
            // Disable dragging - cards in slots should only respond to clicks for enlargement
            card.SetDraggingEnabled(false);
            
            // Notify slot
            slot.AssignCard(card);
            
            // Mark as placed in inventory
            if (CardSystemManager.Instance != null)
            {
                CardSystemManager.Instance.MarkCardAsPlaced(card.CardData);
            }
            
            // Notify AlbumViewPage for registration
            var albumPage = Object.FindFirstObjectByType<AlbumViewPage>();
            if (albumPage != null)
            {
                albumPage.NotifyCardPlaced(card);
            }
            
            Logging.Debug($"[CardPlacedInSlotState] Card placement finalized: {card.CardData?.Name}");
            
            // Clear animation target
            _targetSlotForAnimation = null;
        }
        
        /// <summary>
        /// Set the parent slot this card belongs to (for direct placement without animation)
        /// </summary>
        public void SetParentSlot(AlbumCardSlot slot)
        {
            _parentSlot = slot;
        }
        
        /// <summary>
        /// Get the parent slot
        /// </summary>
        public AlbumCardSlot GetParentSlot()
        {
            return _parentSlot;
        }
        
        public void OnCardClicked(CardContext context)
        {
            // Click to enlarge when in album
            Logging.Debug($"[CardPlacedInSlotState] Card clicked in slot, transitioning to enlarged state");
            context.StateMachine.ChangeState(CardStateNames.AlbumEnlarged);
        }
    }
}