using UnityEngine;
using UnityEngine.UI;

/// <summary>
/// ���������� �� ���������� interactable ��������� ������ �������� ���� �� �������
/// </summary>
public class MainMenuButtonsUpdater : MonoBehaviour
{
    [SerializeField] private int playerId;
    [SerializeField] private Button playVsBotButton;
    [SerializeField] private Button playVsPlayerButton;

    private bool eventsSubscribed;

    private void OnEnable()
    {
        CreditSystem.OnInitialize += Subscribe;
        
        if (!eventsSubscribed && (CreditSystem.onCoinAdded != null || CreditSystem.onCoinRemoved != null))
            Subscribe();
    }

    private void OnDisable()
    {
        if (eventsSubscribed)
        {
            if (CreditSystem.onCoinAdded != null) CreditSystem.onCoinAdded.RemoveListener(OnCoinsChanged);
            if (CreditSystem.onCoinRemoved != null) CreditSystem.onCoinRemoved.RemoveListener(OnCoinsChanged);
            eventsSubscribed = false;
        }
        
        CreditSystem.OnInitialize -= Subscribe;
    }

    private void Subscribe()
    {
        if (eventsSubscribed) return;

        if (CreditSystem.onCoinAdded != null) CreditSystem.onCoinAdded.AddListener(OnCoinsChanged);
        if (CreditSystem.onCoinRemoved != null) CreditSystem.onCoinRemoved.AddListener(OnCoinsChanged);

        eventsSubscribed = true;
        UpdateButtons();
    }

    private void Start()
    {
        UpdateButtons();
    }

    private void OnCoinsChanged(int playerID, int newAmount)
    {
        UpdateButtons();
    }

    public void UpdateButtons()
    {
        // Визуальное состояние кнопок не меняется.
        // При нехватке денег GameManager покажет панель "Пополните баланс".
    }
}