using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using DG.Tweening;
using Unity.VisualScripting;
public class InteractableView : MonoBehaviour
{
    [SerializeField] private CanvasGroup canvasGroup;

    Coroutine co_fade;


    private void Start()
    {
        canvasGroup.gameObject.SetActive(false);
        canvasGroup.alpha = 0f;
    }

    public void ShowScreen()
    {
        if(co_fade != null)
        {
            StopCoroutine(co_fade);
            co_fade = null;
        }

        co_fade = StartCoroutine(OnFade(1f, 0.5f));
    }

    public void HideScreen()
    {
        if (co_fade != null)
        {
            StopCoroutine(co_fade);
            co_fade = null;
        }

        co_fade = StartCoroutine(OnFade(0f, 0.5f));
    }


    private IEnumerator OnFade(float targetAlpha, float duration)
    {
        float startValue = canvasGroup.alpha;
        float currentTime = 0f;
        
        if(targetAlpha  == 1)
        {
            canvasGroup.gameObject.SetActive(true);
        }

        while(currentTime < duration)
        {
            currentTime += Time.deltaTime;
            canvasGroup.alpha = Mathf.Lerp(startValue, targetAlpha, currentTime/duration);
            yield return null;
        }


        canvasGroup.alpha = targetAlpha;


        if(canvasGroup.alpha == 0)
        {
            canvasGroup.gameObject.SetActive(false);
        }

        co_fade = null;
        yield break;
    }


}