using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;

public class MusicManager : MonoBehaviour
{
    public static MusicManager Instance;

    [Header("Audio")]
    public AudioClip musikMenu;
    public AudioClip musikQuiz;
    private AudioSource audioSource;

    public bool musikAktif = true;

    void Awake()
    {
        if (Instance != null)
        {
            Destroy(gameObject);
            return;
        }

        Instance = this;
        DontDestroyOnLoad(gameObject);

        // ✅ MusicManager punya Audio Listener sendiri
        AudioListener al = gameObject.GetComponent<AudioListener>();
        if (al == null) gameObject.AddComponent<AudioListener>();

        audioSource = gameObject.AddComponent<AudioSource>();
        audioSource.loop = true;
        audioSource.playOnAwake = false;

        audioSource.clip = musikMenu;
        if (musikAktif) audioSource.Play();

        SceneManager.sceneLoaded += OnSceneLoaded;
    }

    void OnSceneLoaded(Scene scene, LoadSceneMode mode)
    {
        if (scene.name == "Menu Kuis")
        {
            GantiMusik(musikQuiz);
        }
        else
        {
            GantiMusik(musikMenu);
        }

        // ✅ Kalau di Menu AR, matikan Audio Listener ARCamera
        if (scene.name == "Menu AR")
        {
            StartCoroutine(MatikanARListener());
        }
    }

    IEnumerator MatikanARListener()
    {
        // Tunggu 1 frame biar ARCamera keburu ke-load
        yield return null;

        AudioListener[] listeners = FindObjectsByType<AudioListener>(FindObjectsSortMode.None);
        foreach (AudioListener al in listeners)
        {
            // ✅ Matikan semua Audio Listener kecuali punya MusicManager
            if (al.gameObject != this.gameObject)
            {
                al.enabled = false;
                Debug.Log("MusicManager: matikan AudioListener di " + al.gameObject.name);
            }
        }
    }

    void GantiMusik(AudioClip clip)
    {
        if (clip == null) return;
        if (audioSource.clip == clip)
        {
            if (musikAktif && !audioSource.isPlaying) audioSource.Play();
            return;
        }

        audioSource.clip = clip;
        if (musikAktif) audioSource.Play();
    }

    public float GetVolume() => audioSource.volume;
    public void SetVolume(float v) => audioSource.volume = Mathf.Clamp01(v);

    public void KlikToggleMusik()
    {
        musikAktif = !musikAktif;

        if (musikAktif)
            audioSource.Play();
        else
            audioSource.Stop();
    }

    void OnDestroy()
    {
        SceneManager.sceneLoaded -= OnSceneLoaded;
    }
}