using System.Collections.Generic;
using UnityEngine;

public class ItemDatabase : MonoBehaviour
{
    public static ItemDatabase Instance { get; private set; }

    [SerializeField]
    private List<Item> items = new List<Item>();

    private Dictionary<string, Item> itemDictionary = new Dictionary<string, Item>();
    private Dictionary<int, Item> itemIdDictionary = new Dictionary<int, Item>();

    private void Awake()
    {
        if (Instance == null)
        {
            Instance = this;
            InitializeItemDictionary();
        }
        else
        {
            Destroy(gameObject);
        }
    }

    private void InitializeItemDictionary()
    {
        itemDictionary.Clear();
        itemIdDictionary.Clear();

        foreach (Item item in items)
        {
            if (!itemDictionary.ContainsKey(item.itemName))
            {
                itemDictionary.Add(item.itemName, item);
            }
            else
            {
                Debug.LogError($"Duplicate item name found in ItemDatabase: {item.itemName}");
            }

            if (!itemIdDictionary.ContainsKey(item.itemId))
            {
                itemIdDictionary.Add(item.itemId, item);
            }
            else
            {
                Debug.LogError($"Duplicate item ID found in ItemDatabase: {item.itemId}");
            }
        }
    }

    public Item GetItem(string itemName)
    {
        if (itemDictionary.TryGetValue(itemName, out Item item))
        {
            return item;
        }

        Debug.LogWarning($"Item not found in database: {itemName}");
        return null;
    }

    public Item GetItem(int itemId)
    {
        if (itemIdDictionary.TryGetValue(itemId, out Item item))
        {
            return item;
        }

        Debug.LogWarning($"Item not found in database: ID {itemId}");
        return null;
    }
}