using System.Collections;
using UnityEngine;

public class VoicePlayer
{
    private AudioSourcePool audioSourcePool;
    private AudioSource currentSource;
    private Coroutine myCoroutine;

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

    /// <summary>
    /// 播放语音
    /// </summary>
    /// <param name="clip">音频</param>
    /// <param name="volume">音量</param>
    /// <param name="onComplete">结束行为</param>
    /// <param name="delayOnComplete">延迟结束行为时间</param>
    public void Play(AudioClip clip, float volume = 1f, System.Action onComplete = null, float delayOnComplete = 0f)
    {
        // 停止当前正在播放的语音与旧协程
        Stop();
        if(myCoroutine!= null)
        {
            CoroutineHelper.StopCoroutine(myCoroutine);
            myCoroutine = null;
        }
        currentSource = audioSourcePool.GetAudioSource("Voice");
        if (currentSource == null) return;

        currentSource.clip = clip;
        currentSource.volume = volume;
        currentSource.Play();

        // 使用协程处理延迟和回调
        myCoroutine = CoroutineHelper.StartCoroutine(PlayVoiceCoroutine(currentSource, delayOnComplete, onComplete));
    }

    /// <summary>
    /// 停止语音
    /// </summary>
    public void Stop()
    {
        if (currentSource != null && currentSource.isPlaying)
        {
            currentSource.Stop();
            audioSourcePool.ReturnAudioSource("Voice", currentSource.gameObject);
            currentSource = null;
        }
    }

    /// <summary>
    /// 播放语音的协程
    /// </summary>
    /// <param name="source"></param>
    /// <param name="delayOnComplete"></param>
    /// <param name="onComplete"></param>
    /// <returns></returns>
    private IEnumerator PlayVoiceCoroutine(AudioSource source, float delayOnComplete, System.Action onComplete)
    {
        yield return new WaitForSeconds(source.clip.length+delayOnComplete);

        onComplete?.Invoke();
        audioSourcePool.ReturnAudioSource("Voice", source.gameObject);
        currentSource = null;
        myCoroutine = null;
    }
}