using System;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.UI;

[RequireComponent(typeof(Button))]
public class ToggleButton : MonoBehaviour
{
    [SerializeField]
    public ToggleSpriteData[] toggleSpriteData;

    public bool isOn = false;

    Button btn;

    public UnityEvent<bool> onToggleValueChanged = new UnityEvent<bool>();
    void Start()
    {
        btn = GetComponent<Button>();
        btn.onClick.AddListener(OnClick);
    }

    void OnClick()
    {
        SetIsOn(!isOn);
    }

    public void SetIsOn(bool isOn)
    {
        this.isOn = isOn;
        foreach (var spriteData in toggleSpriteData)
        {
            spriteData.target.sprite = isOn ? spriteData.onSprite : spriteData.offSprite;
        }
        onToggleValueChanged.Invoke(isOn);
    }
}

[Serializable]
public class ToggleSpriteData{
    public Image target;
    public Sprite onSprite;
    public Sprite offSprite;
}