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

namespace TON
{
    public class SoundManager : MonoBehaviour
    {
        [Header("#BGM")] 
        public AudioClip bgmClip;
        public float bgmVolume;
        AudioSource bgSound;
        
        [Header("#SFX")] 
        public float sfxVolume;
        AudioSource sfxSound;
        
        public static SoundManager instance;

        // 현재 재생 중인 SFX 클립과 해당 AudioSource를 저장할 Dictionary
        private Dictionary<AudioClip, AudioSource> playingSfxMap = new Dictionary<AudioClip, AudioSource>();

        private void Awake()
        {
            if (instance == null)
            {
                instance = this;
                Init();
                DontDestroyOnLoad(instance);
                // 씬 로드 이벤트에 리스너 등록
                SceneManager.sceneLoaded += OnSceneLoaded;
            }
            else
            {
                Destroy(gameObject);
            }
        }

        void Init()
        {
            // 배경음 플레이어 초기화
            GameObject bgmObject = new GameObject("BGM");
            bgmObject.transform.parent = transform;
            bgSound = bgmObject.AddComponent<AudioSource>();
            bgSound.playOnAwake = false;
            bgSound.loop = true;
            bgSound.volume = bgmVolume;
            bgSound.clip = bgmClip;


            // 호과음 플레이어 초기화
            GameObject sfxObject = new GameObject("SFX");
            sfxObject.transform.parent = transform;
            sfxSound = sfxObject.AddComponent<AudioSource>();
            sfxSound.playOnAwake = false;
            sfxSound.volume = sfxVolume;
        }

        private void OnSceneLoaded(Scene scene, LoadSceneMode mode)
        {
            // 씬이 바뀔 때마다 배경 음악 종료
            BgSoundPlay(null);
            
            foreach (var entry in playingSfxMap)
            {
                if (entry.Value != null && entry.Value.gameObject != null)
                {
                    Destroy(entry.Value.gameObject);
                }
            }
            playingSfxMap.Clear();
        }

        public void SFXPlay(string sfxName, AudioClip clip)
        {
            // 재생 중인지 확인
            if (playingSfxMap.ContainsKey(clip) && playingSfxMap[clip].isPlaying)
            {
                Debug.Log($"SFX '{sfxName}' 재생중이므로 재생하지 않고 넘김.");
                return; // 이미 재생 중이면 재생하지 않고 종료
            }

            GameObject go = new GameObject(sfxName + "Sound");
            AudioSource audiosource = go.AddComponent<AudioSource>();
            
            audiosource.clip = clip;
            audiosource.volume = sfxVolume; // SFX 볼륨 적용
            audiosource.Play();
            
            playingSfxMap[clip] = audiosource;
            
            StartCoroutine(DestroyAndRemoveSFX(go, clip, clip.length));
        }
        
        private IEnumerator DestroyAndRemoveSFX(GameObject go, AudioClip clip, float delay)
        {
            yield return new WaitForSeconds(delay);
            if (playingSfxMap.ContainsKey(clip) && playingSfxMap[clip] == go.GetComponent<AudioSource>())
            {
                playingSfxMap.Remove(clip);
            }
            Destroy(go);
        }

        public void BgSoundPlay(AudioClip clip)
        {
            bgSound.clip = clip;
            bgSound.loop = true;
            bgSound.volume = 1f;
            bgSound.Play();
        }
    }
}