using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Windows.Speech;
using ZXKFramework;

/// 语音命令识别
public class SpeechRecognition : MonoBehaviour
{
    // 短语识别器
    private PhraseRecognizer m_PhraseRecognizer;
    // 关键字
    string[] keywords;
    // 可信度
    public ConfidenceLevel m_confidenceLevel = ConfidenceLevel.Medium;
    public static SpeechRecognition Instance;
    public static event Action<string> callBack;
    private void Start()
    {
        Instance = this;
        DontDestroyOnLoad(this);
        callBack = null;
    }
    /// <summary>
    /// 关闭之后 只能接收到小智小智
    /// </summary>
    public void Close()
    {
        OnDestroy();
        TheStart();
    }
    /// <summary>
    /// 命令数据刷新2
    /// </summary>
    public void Open(string[] newKeys)
    {
        OnDestroy();
        List<string> list = new List<string>();
        for (int i = 0; i < newKeys.Length; i++)
        {
            if (!string.IsNullOrEmpty(newKeys[i]))
            {
                list.Add(newKeys[i]);
            }
        }
        keywords = list.ToArray();
        TheStart();
    }
    /// <summary>
    /// 命令数据刷新
    /// </summary>
    public void Open()
    {
        OnDestroy();
        string data = Resources.Load<TextAsset>("VoiceCommand").text;
        if (!string.IsNullOrEmpty(data))
        {
            List<string> loAllData = new List<string>();
            string[] loData = data.Split('|');
            foreach (var item in loData)
            {
                if (!string.IsNullOrEmpty(item))
                {
                    loAllData.Add(item.Trim());
                }
            }
            keywords = new string[loAllData.Count];
            for (int i = 0; i < loAllData.Count; i++)
            {
                keywords[i] = loAllData[i];
            }
        }
        TheStart();
    }

    void TheStart()
    {
        if (m_PhraseRecognizer == null)
        {
            //创建一个识别器
            m_PhraseRecognizer = new KeywordRecognizer(keywords, m_confidenceLevel);
            //通过注册监听的方法
            m_PhraseRecognizer.OnPhraseRecognized += M_PhraseRecognizer_OnPhraseRecognized;
            //开启识别器
            m_PhraseRecognizer.Start();
        }
    }
    /// 当识别到关键字时，会调用这个方法
    private void M_PhraseRecognizer_OnPhraseRecognized(PhraseRecognizedEventArgs args)
    {
        _SpeechRecognition(args.text);
        print(args.text);
    }
    private void OnDestroy()
    {
        //判断场景中是否存在语音识别器，如果有，释放
        if (m_PhraseRecognizer != null)
            m_PhraseRecognizer.Dispose();
    }
    /// 识别到语音的操作
    void _SpeechRecognition(string msg)
    {
        callBack?.Invoke(msg);
    }
}