using UnityEngine;
using UnityEngine.UI;

/// <summary>
/// Отвечает за обновление interactable состояния кнопок главного меню по балансу
/// </summary>
public class MainMenuButtonsUpdater : MonoBehaviour
{
    [SerializeField] private int playerId;
    [SerializeField] private Button playVsBotButton;
    [SerializeField] private Button playVsPlayerButton;

    private bool eventsSubscribed;

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

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

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

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

        eventsSubscribed = true;
        UpdateButtons();
    }

    private void Start()
    {
        UpdateButtons();
    }

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

    public void UpdateButtons()
    {
        int myCoins = ComWrapper.GetPlayerCredits(playerId);
        int enemyId = playerId == 1 ? 2 : 1;
        int enemyCoins = ComWrapper.GetPlayerCredits(enemyId);

        bool freePlay = SettingsManager.instance != null && 
                        SettingsManager.instance.GetSettingValue("Бесплатная игра") == "Вкл";

        if (playVsBotButton != null)
            playVsBotButton.interactable = myCoins >= 1 || freePlay;

        bool bothHaveEnough = myCoins >= 2 || (myCoins >= 1 && enemyCoins >= 1) || freePlay;

        if (playVsPlayerButton != null)
            playVsPlayerButton.interactable = bothHaveEnough;
    }
}