using UnityEngine;

public class CanvasGroupFadeIn : MonoBehaviour
{
    private CanvasGroup canvasGroup; // Automatically finds the CanvasGroup
    public float fadeSpeed = 1f; // Speed of the fade animation

    private void Awake()
    {
        // Automatically find the CanvasGroup component on this GameObject
        canvasGroup = GetComponent<CanvasGroup>();

        if (canvasGroup == null)
        {
            Debug.LogError("No CanvasGroup found on the object. Please attach a CanvasGroup component.");
            return;
        }

        // Set alpha to 0 at the start
        canvasGroup.alpha = 0f;
        canvasGroup.blocksRaycasts = false;
    }

    private void Start()
    {
        StartCoroutine(FadeIn());
    }

    private System.Collections.IEnumerator FadeIn()
    {
        while (canvasGroup.alpha < 1f)
        {
            // Smoothly increase alpha based on fadeSpeed
            canvasGroup.alpha += Time.deltaTime * fadeSpeed;
            yield return null;
        }

        // Ensure alpha is exactly 1 at the end
        canvasGroup.alpha = 1f;
        canvasGroup.blocksRaycasts = true; // Enable interaction after fade in
    }
}