using System.Collections;
using UnityEngine;
using UnityEngine.UI;

public class MenuMateriSlide : MonoBehaviour
{
    [Header("Scroll")]
    public ScrollRect scrollRect;
    public RectTransform content;
    public int totalCard = 6;
    public float duration = 0.3f;

    private int currentIndex = 0;
    private bool isSliding = false;

    void Start()
    {
        GoToCard(0, false);
    }

    public void Next()
    {
        if (isSliding) return;
        if (currentIndex < totalCard - 1)
        {
            currentIndex++;
            GoToCard(currentIndex, true);
        }
    }

    public void Prev()
    {
        if (isSliding) return;
        if (currentIndex > 0)
        {
            currentIndex--;
            GoToCard(currentIndex, true);
        }
    }

    void GoToCard(int index, bool animate)
    {
        // Beritahu NarasiAudio untuk ganti clip
        NarasiAudio narasi = GetComponent<NarasiAudio>();
        if (narasi != null) narasi.OnCardChanged(index);

        float target = (float)index / Mathf.Max(1, totalCard - 1);
        if (animate)
            StartCoroutine(SlideTo(target));
        else
            scrollRect.horizontalNormalizedPosition = target;
    }

    IEnumerator SlideTo(float target)
    {
        isSliding = true;
        float start = scrollRect.horizontalNormalizedPosition;
        float elapsed = 0f;

        while (elapsed < duration)
        {
            elapsed += Time.deltaTime;
            scrollRect.horizontalNormalizedPosition = Mathf.Lerp(start, target, elapsed / duration);
            yield return null;
        }

        scrollRect.horizontalNormalizedPosition = target;
        isSliding = false;
    }
}