using AlicizaX;
using UnityEngine;
using UnityEngine.Audio;

namespace AlicizaX.Audio.Runtime
{
    [DisallowMultipleComponent]
    [AddComponentMenu("Game Framework/Audio")]
    public sealed class AudioComponent : MonoBehaviour
    {
        [SerializeField] private AudioMixer m_AudioMixer;
        [SerializeField] private Transform m_InstanceRoot;
        [SerializeField] private AudioListener m_AudioListener;
        [SerializeField] private AudioGroupConfigCollection m_AudioGroupConfigs;

        private IAudioService _audioService;

        private void Awake()
        {
            _audioService = AppServices.RegisterApp(new AudioService());
        }

        private void Start()
        {
            EnsureInstanceRoot();
            EnsureAudioMixer();
            AudioGroupConfig[] configs = m_AudioGroupConfigs != null ? m_AudioGroupConfigs.GroupConfigs : null;
            _audioService.Initialize(configs, m_InstanceRoot, m_AudioMixer);
            if (m_AudioListener != null)
            {
                _audioService.RegisterListener(m_AudioListener);
            }
        }

        private void OnEnable()
        {
            if (_audioService != null && m_AudioListener != null)
            {
                _audioService.RegisterListener(m_AudioListener);
            }
        }

        private void OnDisable()
        {
            if (_audioService != null && m_AudioListener != null)
            {
                _audioService.UnregisterListener(m_AudioListener);
            }
        }

        private void EnsureInstanceRoot()
        {
            if (m_InstanceRoot != null)
            {
                return;
            }

            m_InstanceRoot = new GameObject("[AudioService Instances]").transform;
            m_InstanceRoot.SetParent(transform, false);
            m_InstanceRoot.localScale = Vector3.one;
        }

        private void EnsureAudioMixer()
        {
            if (m_AudioMixer == null)
            {
                m_AudioMixer = Resources.Load<AudioMixer>("AudioMixer");
            }
        }

    }
}