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

namespace Stary.Evo.AudioCore
{
    public class SFXPlayer : AbstractAudio
    {
        private AudioSourcePool audioSourcePool;
        private List<AudioSource> activeSources = new List<AudioSource>();  // 正在播放的 AudioSource 列表

        public SFXPlayer(AudioSourcePool audioSourcePool)
        {
            this.audioSourcePool = audioSourcePool;
        }

        /// <summary>
        /// 播放音效
        /// </summary>
        /// <param name="audioData">{[clip:音频], [volume:音量], 
        /// [onComplete:回调行为], [delayOnCompleteTime:延迟回调执行的时间], 
        /// [is3DAudio:是否3D音频], [audio3DPosition:3D音频位置], [audio3DMaxDistance:3D音频最大距离]}</param>
        public override void Play(AudioData audioData)
        {
            audioData = AudioDataInitialize(audioData);
            if (audioData.clip == null)
            {
                Debug.LogError("播放的音效音频片段为空");
                return;
            }
            
            AudioSource source = audioSourcePool.GetAudioSource("SFX");
            if (source == null) return;

            source.clip = audioData.clip;
            source.volume = audioData.volume;
            
            // 设置2D与3D音频
            if (audioData.is3DAudio)
            {
                source.transform.position = audioData.audio3DPosition;
                source.spatialBlend = 1;
                source.minDistance = 1f;
                if (audioData.audio3DMaxDistance != 0)
                {
                    source.maxDistance = audioData.audio3DMaxDistance;
                }
                else
                {
                    // 默认3D最大距离为3米
                    source.maxDistance = 3f;
                }
            }
            else
            {
                source.transform.position = Vector3.zero;
                source.spatialBlend = 0;
                source.minDistance = 1f;
                source.maxDistance = 500f;
            }
            source.Play();

            // 将 AudioSource 加入活动列表
            activeSources.Add(source);

            // 使用协程处理延迟和回调
            CoroutineHelper.Instance.StartCoroutine(PlaySFXCoroutine(source, audioData.delayOnCompleteTime, audioData.onComplete));
        }

        /// <summary>
        /// 停止所有音效
        /// </summary>
        /// <param name="audioData">{[无可使用变量]}</param>
        public override void Stop()
        {
            if (activeSources == null) return;
            foreach (var source in activeSources)
            {
                if (source.isPlaying)
                {
                    source.Stop();
                    audioSourcePool.ReturnAudioSource("SFX", source.gameObject);
                }
            }
            activeSources.Clear();
        }

        /// <summary>
        /// 播放音效的协程
        /// </summary>
        /// <param name="source"></param>
        /// <param name="delay"></param>
        /// <param name="onComplete"></param>
        /// <returns></returns>    
        private IEnumerator PlaySFXCoroutine(AudioSource source, float delay, System.Action onComplete)
        {
            yield return new WaitForSeconds(source.clip.length + delay);
            audioSourcePool.ReturnAudioSource("SFX", source.gameObject);
            onComplete?.Invoke();
            activeSources.Remove(source);
        }
    }
}