using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;

public class SoundManager : MonoSingleton<SoundManager>
{
    private AudioSource bgmAudioSource = null;
    private float bgmVolume = 1;

    private GameObject m_SoundEffectObj = null;
    private List<AudioSource> soundList = new List<AudioSource>();
    private float soundEffectVolume = 1;

    public override void InitManager()
    {
        base.InitManager();

        SetBGMVolume(PlayerPrefs.HasKey("BGMVolume") ? PlayerPrefs.GetFloat("BGMVolume") : 1);
        SetSoundEffectsVolume(PlayerPrefs.HasKey("SoundEffectVolume") ? PlayerPrefs.GetFloat("SoundEffectVolume") : 1);
    }

    private void Update()
    {
        for(int i = 0; i < soundList.Count; i++)
        {
            if (!soundList[i].isPlaying)
            {
                GameObject.Destroy(soundList[i]);
                soundList.RemoveAt(i);
            }
        }
    }

    public void PlayBGM(string path)
    {
        if (bgmAudioSource == null)
        {
            GameObject obj = new GameObject("BGM");

            bgmAudioSource = obj.AddComponent<AudioSource>();
        }

        AudioClip clip = Resources.Load<AudioClip>(path);
        bgmAudioSource.loop = true;
        bgmAudioSource.clip = clip;
        bgmAudioSource.volume = bgmVolume;
        bgmAudioSource.Play();
    }

    public void PasueBGM()
    {
        if (bgmAudioSource == null)
        {
            return;
        }
        bgmAudioSource.Pause();
    }

    public void ContinueBGM()
    {
        if (bgmAudioSource == null)
        {
            return;
        }
        bgmAudioSource.Pause();
    }

    public void StopBGM()
    {
        if (bgmAudioSource == null)
        {
            return;
        }
        bgmAudioSource.Stop();
    }
    public float GetBGMVolum()
    {
        return bgmVolume;
    }
    public void SetBGMVolume(float value)
    {
        bgmVolume = value;
        PlayerPrefs.SetFloat("BGMVolume", value);
        if (bgmAudioSource == null)
        {
            return;
        }
        bgmAudioSource.volume = bgmVolume; 
    }

    public AudioSource PlaySoundEffect(string path, bool isLoop)
    {
        if (m_SoundEffectObj == null)
        {
            m_SoundEffectObj = new GameObject("SoundEffect");
        }

        AudioClip clip = Resources.Load<AudioClip>(path);
        AudioSource source = m_SoundEffectObj.AddComponent<AudioSource>();

        source.clip = clip;
        source.volume = soundEffectVolume;
        source.loop = isLoop;
        source.Play();
        soundList.Add(source);

        return source;
    }

    public void StopSoundEffect(AudioSource source)
    {
        if (soundList.Contains(source))
        {
            soundList.Remove(source);
            source.Stop();
            GameObject.Destroy(source);
        }
    }

    public void SetSoundEffectsVolume(float value)
    {
        soundEffectVolume = value;
        PlayerPrefs.SetFloat("SoundEffectVolume", value);
        for (int i = 0; i < soundList.Count; i++)
        {
            soundList[i].volume = value;
        }
    }
    public float GetSoundEffectsVolume()
    {
        return soundEffectVolume;
    }
}