using System.Collections.Generic;
using UnityEngine;

// InventoryUI.cs

public class InventoryUIController : MonoBehaviour
{
    public InventoryManager inventoryManager;
    public Transform itemParent;
    public GameObject itemSlotPrefab;
    public GameObject inventoryItemPrefab;

    public readonly Dictionary<int, GameObject> DisplayedSlots = 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.inventorySlots.Count == 0)
            inventoryManager.InitializeInventory();


        foreach (var inventorySlot in inventoryManager.inventorySlots)
        {
            // Draw slots to screen
            var slotDisplay = Instantiate(itemSlotPrefab, itemParent);
            var i = inventorySlot.slotId;
            // Add prefab to slot
            slotDisplay.GetComponent<InventorySlotDisplayController>().SetInventoryItemPrefab(inventoryItemPrefab);
            slotDisplay.GetComponent<InventorySlotDisplayController>().SetSlotDetails(inventorySlot);

            DisplayedSlots.Add(i, slotDisplay);

            // GenerateInventorySlotDisplay(inventorySlot);
        }

        // Debug.Log("Adding item to slot:" + item.GetItemName());

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


    private void AddItemToSlot(GameItem gameItem, int id)
    {
        /*Debug.Log(item);
        Debug.Log(item.itemName);

        ListChildren(slot);

        var itemNameText = slot.GetComponentInChildren<TextMeshProUGUI>();
        if (itemNameText != null)
            itemNameText.text = item.itemName;
        else
            Debug.LogWarning("ItemName Text component not found in slot: " + slot);


        // slot.GetComponentInChildren<Text>().text = item.itemName;
        var iconTransform = slot.transform.Find("Icon");
        if (iconTransform != null)
        {
            var iconImage = iconTransform.GetComponent<Image>();
            if (iconImage != null)
                iconImage.sprite = item.icon;
            else
                Debug.LogWarning("Image component not found on Icon child: " + slot);
        }
        else
        {
            Debug.LogWarning("Icon child not found in slot: " + slot);
        }*/
    }

    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.
    }
}