SimUL/Assets/Scripts/UIElements/ContainerItemsUI.cs

using UnityEngine;

public class ContainerItemsUI : MonoBehaviour
{

    [SerializeField]
    private Transform _container;
    [SerializeField]
    private Transform _itemsList;
    [SerializeField]
    private Transform _itemUITemplate;

    private ContainerItem _playerContainer;

    private void Awake()
    {
        _container.gameObject.SetActive(false);
    }

    private void Start()
    {
        Player.Instance.OnContainerChanged += OnContainerChanged;
    }

    private void OnContainerChanged(object sender, bool e)
    {
        if (e)
        {
            _container.gameObject.SetActive(true);
            _playerContainer = Player.Instance.GetContainerItem();
            _playerContainer.OnItemsChange += OnItemsChange;
        }
        else
        {
            _container.gameObject.SetActive(false);
            _playerContainer.OnItemsChange -= OnItemsChange;
            _playerContainer = null;
        }
    }

    private void OnItemsChange(object sender, System.EventArgs e)
    {
        if (_playerContainer.IsSalebleItems())
        {
            ClearObject();

            var playerItemsList = _playerContainer.GetItems();
            for (int count = 0; count < playerItemsList.Count; count++)
            {
                var itemUI = Instantiate(_itemUITemplate, _itemsList);
                itemUI.gameObject.SetActive(true);
                itemUI.GetComponent<ItemDescriptionUI>().SetItem((SellableItemSO)playerItemsList[count]);
            }
        }
    }

    private void ClearObject()
    {
        foreach (Transform child in _itemsList)
        {
            if (child == _itemUITemplate) continue;
            Destroy(child.gameObject);
        }
    }
}