using System;
using UnityEngine;
using UnityEngine.UI;

public class CheckBox : MonoBehaviour
{
    public event Action<bool> OnChangeState;

    public bool IsInteractable => _isInteractable;
    public bool IsChecked => _isChecked;

    [SerializeField] private Button _button;

    [SerializeField] private Image _activeImage;
    [SerializeField] private Image _inactiveImage;

    private bool _isInteractable = true;
    private bool _isChecked = true;

    private void Start()
    {
        _button.onClick.AddListener(OnButtonClick);
    }

    public void SetState(bool isEnabled)
    {
        _isChecked = isEnabled;
        UpdateView();
    }

    public void SetInteractable(bool isInteractable)
    {
        _isInteractable = isInteractable;
        UpdateView();
    }

    private void UpdateView()
    {
        _activeImage.gameObject.SetActive(_isChecked);
        _inactiveImage.gameObject.SetActive(!_isChecked);

        _button.interactable = _isInteractable;
        _button.targetGraphic = _isChecked ? _activeImage : _inactiveImage;
    }

    private void OnButtonClick()
    {
        if (!_isInteractable)
            return;

        SetState(!_isChecked);
        OnChangeState?.Invoke(_isChecked);
    }
}