using BrewMonster.Scripts;
using UnityEngine;
using UnityEngine.UI;
using TMPro;

public class ShopItemPanel : MonoBehaviour
{
    [Header("UI Components")]
    public TextMeshProUGUI itemNameText;
    public TextMeshProUGUI itemPriceText;
    public Image itemIconImage;
    public TextMeshProUGUI itemQuantityText;
    public Button itemButton;
    
    private GShopItem itemData;
    private ShopUIManager shopManager;
    
    void Start()
    {
        if (itemButton != null)
        {
            itemButton.onClick.AddListener(OnItemClicked);
        }
    }
    
    public void SetupItem(GShopItem item, ShopUIManager manager)
    {
        itemData = item;
        shopManager = manager;
        
        UpdateDisplay();
    }
    
    void UpdateDisplay()
    {
        if (itemData.id == 0)
            return;
        
        // Set item name
        if (itemNameText != null)
            itemNameText.text = itemData.name;
        
        // Set item quantity
        if (itemQuantityText != null)
            itemQuantityText.text = $"x{itemData.num}";
        
        // Find the best buy option (first non-zero price)
        uint bestPrice = 0;
        for (int i = 0; i < itemData.buy.Length; i++)
        {
            if (itemData.buy[i].price > 0)
            {
                if (itemData.buy[i].price / 100 == 0 && itemData.buy[i].price != 0)
                {
                    gameObject.GetComponent<Button>().interactable = false;
                }
                else
                {
                    bestPrice = itemData.buy[i].price / 100;
                }
                break;
            }
        }
        
        // Set item price
        if (itemPriceText != null)
            itemPriceText.text = bestPrice.ToString();
        
        // Load icon based on item ID
        if (itemIconImage != null)
        {
            LoadItemIcon(itemIconImage, (int)itemData.id);
        }
    }
    
    void LoadItemIcon(Image iconImage, int itemId)
    {
        if (itemId <= 0)
        {
            Debug.LogWarning($"Invalid item ID for icon loading: {itemId}");
            return;
        }
        
        // Use the existing icon loading system from EC_IvtrItem
        Sprite iconSprite = EC_IvtrItemUtils.Instance.ResolveItemIconSprite(itemId);
        
        if (iconSprite != null)
        {
            iconImage.sprite = iconSprite;
            Debug.Log($"Successfully loaded icon for item ID: {itemId}");
        }
        else
        {
            Debug.LogWarning($"Failed to load icon for item ID: {itemId}");
            // Optionally set a default icon or clear the current one
            iconImage.sprite = null;
        }
    }
    
    void OnItemClicked()
    {
        if (shopManager != null && itemData.id != 0)
        {
            shopManager.ShowItemDetail(itemData);
        }
    }
    
    void OnDestroy()
    {
        if (itemButton != null)
        {
            itemButton.onClick.RemoveListener(OnItemClicked);
        }
    }
    
    public void ResetPanel()
    {
        // Clear item data
        itemData = new GShopItem();
        shopManager = null;
        
        // Reset UI display
        if (itemNameText != null)
            itemNameText.text = "";
        
        if (itemPriceText != null)
            itemPriceText.text = "";
        
        if (itemQuantityText != null)
            itemQuantityText.text = "";
        
        if (itemIconImage != null)
            itemIconImage.sprite = null;
        
        // Reset transform
        transform.localPosition = Vector3.zero;
        transform.localRotation = Quaternion.identity;
        transform.localScale = Vector3.one;
    }
    
    public bool IsInUse()
    {
        return itemData.id != 0;
    }
}