using UnityEngine;

namespace MedievalShopkeeper
{
    public class StorageRack : Interactable
    {
        [Header("Storage Settings")]
        [Tooltip("The item this rack provides.")]
        [SerializeField] private ItemData storedItem;
        
        [Tooltip("How many items are withdrawn at once into a crate.")]
        [SerializeField] private int withdrawalBatchSize = 10;

        public override string InteractionPrompt 
        {
            get
            {
                if (storedItem != null)
                {
                    return $"Withdraw {withdrawalBatchSize}x {storedItem.itemName} Crate";
                }
                return "Empty Storage Rack";
            }
        }

        public override void Interact(PlayerController player)
        {
            base.Interact(player);

            if (storedItem == null)
            {
                Debug.Log("[StorageRack] Rack is empty.");
                return;
            }

            if (player.IsCarryingItem)
            {
                Debug.LogWarning("[StorageRack] Player is already carrying a box! Drop it or stock a shelf first.");
                return;
            }

            // Ensure ShopInventory has enough stock before withdrawing
            if (ShopInventory.Instance.GetStockCount(storedItem) < withdrawalBatchSize)
            {
                Debug.LogWarning($"[StorageRack] Not enough stock in ShopInventory! Need {withdrawalBatchSize}, have {ShopInventory.Instance.GetStockCount(storedItem)}.");
                
                // Optional: For testing purposes, auto-buy the stock if empty
                Debug.Log("[StorageRack] Auto-buying stock for testing purposes...");
                ShopInventory.Instance.BuyStock(storedItem, withdrawalBatchSize * 5);
            }

            // Withdraw from central inventory to player hands
            ShopInventory.Instance.WithdrawToPlayer(storedItem, withdrawalBatchSize, player);
        }
    }
}