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

// Unity www.GetAudioClip() only support wav
public class SoundPool : PoolBase<SoundPool>
{
    public Dictionary<string, AudioClip> sound_collection = new Dictionary<string, AudioClip>();
    public AudioClip GetAudioClip(string filename)
    {
        if (sound_collection.ContainsKey(filename) == false)
        {
            var info = GetFileInfo(filename);
            string path = info.FullName;
            string ext = info.Extension;
#if false
            AudioClip clip = null;
            var www = new WWW("file://" + path);
            while (www.isDone == false) { }

            if (www.bytes.Length > 0)
            {
                clip = www.GetAudioClip(false, false, AudioType.AIFF);
                clip.name = filename;
            }
            else
            {
                Debug.Log(www.error);
            }
            www.Dispose();
            sound_collection.Add(filename, clip);
#else
            sound_collection.Add(filename, null);
            StartCoroutine(LoadAudio(path, filename, ext));
#endif
        }
        return sound_collection[filename];
    }

    IEnumerator LoadAudio(string path, string filename, string extension)
    {
#if false
        var www = new WWW("file://" + path);
        yield return www;

        if (www.bytes.Length > 0)
        {
            var clip = www.GetAudioClip(false);
            clip.name = filename;
            sound_collection[filename] = clip;
        }
        else
        {
            Debug.Log(www.error);
        }
        www.Dispose();
#else
        string uri = "file://" + path;
        string ext = GetFileInfo(filename).Extension;
        var type = AudioType.UNKNOWN;
        var comparison = System.StringComparison.CurrentCultureIgnoreCase;
        if (ext.Equals(".aif", comparison))
            type = AudioType.AIFF;
        else if (ext.Equals(".wav", comparison))
            type = AudioType.WAV;
        else if (ext.Equals(".acc", comparison))
            type = AudioType.ACC;
        else if (ext.Equals(".ogg", comparison))
            type = AudioType.OGGVORBIS;

        print(type);
        
        using (UnityWebRequest www = UnityWebRequestMultimedia.GetAudioClip(uri, type))
        {
#if UNITY_2017_1
            yield return www.Send();
#else
            yield return www.SendWebRequest();
#endif
            if (www.isNetworkError)
            {
                Debug.Log(www.error);
            }
            else
            {
                AudioClip clip = DownloadHandlerAudioClip.GetContent(www);
                clip.name = filename;
                print("downloadedBytes: " + www.downloadedBytes);
                //clip.LoadAudioData();
                sound_collection[filename] = clip;
            }
        }
#endif
        }

}