using UnityEngine;
using UnityEngine.UI;

/// <summary>
/// Attach ke GameObject yang SAMA dengan MenuMateriSlide.
/// Tambahkan AudioSource baru (bukan yang dipakai button) ke GameObject ini,
/// lalu assign ke field audioSource di Inspector.
/// </summary>
public class NarasiAudio : MonoBehaviour
{
    [Header("Audio")]
    public AudioSource audioSource;
    public Button buttonAudio;

    [Range(0f, 1f)]
    public float backsoundVolumeDuringNarasi = 0.2f;

    [Tooltip("Isi AudioClip sesuai urutan Materi 1, 2, 3, dst")]
    public AudioClip[] narasiClips;

    private int currentIndex = 0;
    private float originalBacksoundVolume = 1f;

    void Awake()
    {
        // Jika belum di-assign, cari AudioSource di children bernama "NarasiSource"
        if (audioSource == null)
        {
            var go = new GameObject("NarasiSource");
            go.transform.SetParent(transform);
            audioSource = go.AddComponent<AudioSource>();
        }

        audioSource.playOnAwake = false;
        audioSource.loop = false;
        audioSource.Stop();
    }

    void Start()
    {
        if (buttonAudio != null)
            buttonAudio.onClick.AddListener(ToggleAudio);

        if (MusicManager.Instance != null)
            originalBacksoundVolume = MusicManager.Instance.GetVolume();

        SetClip(0);
    }

    /// <summary>Dipanggil oleh MenuMateriSlide saat kartu berganti.</summary>
    public void OnCardChanged(int index)
    {
        currentIndex = index;
        StopAudio();
        SetClip(index);
    }

    void SetClip(int index)
    {
        if (narasiClips == null || index >= narasiClips.Length) return;
        if (narasiClips[index] == null) return;

        audioSource.clip = narasiClips[index];
        UpdateIcon(false);
    }

    public void ToggleAudio()
    {
        if (audioSource.isPlaying)
        {
            StopAudio();
        }
        else
        {
            if (audioSource.clip == null)
            {
                Debug.LogWarning("[NarasiAudio] Clip null di index " + currentIndex);
                return;
            }
            audioSource.Play();
            if (MusicManager.Instance != null)
                MusicManager.Instance.SetVolume(backsoundVolumeDuringNarasi);
            UpdateIcon(true);
        }
    }

    void StopAudio()
    {
        if (audioSource != null && audioSource.isPlaying)
            audioSource.Stop();
        if (MusicManager.Instance != null)
            MusicManager.Instance.SetVolume(originalBacksoundVolume);
        UpdateIcon(false);
    }

    void UpdateIcon(bool isPlaying)
    {
        // Icon tidak dipakai
    }
}