using System.Collections.Generic;
using Managers;
using UnityEngine;

// InventoryUI.cs

public class InventoryUIController : MonoBehaviour
{
    public Transform itemParent;
    public InventoryManager inventoryManager;
    public PrefabManager prefabManager;

    private readonly Dictionary<int, GameObject> _slots = new();

    private void Start()
    {
        Debug.Log("InventoryUI Start");
        if (itemParent == null)
        {
            Debug.LogWarning("ItemParent is null! Can not attach");
            return;
        }

        // Delete existing children if any.
        foreach (Transform child in itemParent) Destroy(child.gameObject);

        if (inventoryManager.Slots.Count == 0)
            inventoryManager.InitializeInventory(PlayerManager.Instance.playerData);

        var slotPrefab = prefabManager.GetSlotPrefab();
        var itemPrefab = prefabManager.GetItemPrefab();


        foreach (var inventorySlot in inventoryManager.Slots)
        {
            // Draw slots to screen
            var slotDisplay = Instantiate(slotPrefab, itemParent);
            var i = inventorySlot.Key;

            var inventorySlotComponent = slotDisplay.GetComponent<SlotComponent>();

            // Add prefab to slot
            inventorySlotComponent.SetSlotDetails(inventorySlot.Value);

            _slots.Add(i, slotDisplay);
        }

        Debug.Log("Finished adding items to slots");
    }


    public void ListChildren(GameObject parent)
    {
        foreach (Transform child in parent.transform) Debug.Log("Child: " + child.name);
    }

    public void UpdateUI()
    {
        // Get values from inventory and redraw the inventory slots based on that.
    }
}