//--------------------------------------------------------
//    [Author]:           第二世界
//    [  Date ]:           Sunday, December 24, 2017
//--------------------------------------------------------

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

namespace Snxxz.UI {

    public class MonitorVoiceWin : Window
    {
        [SerializeField] Slider m_VoiceSlider;

        float m_VoiceTime = 9.0f;

        float m_CheckVolumeInterval = 0.2f;

        public static AudioSource audioSource;

        float m_Time;
        float m_CheckVolumeTime = 0f;
        #region Built-in
        protected override void BindController()
        {
        }

        protected override void AddListeners()
        {
        }

        protected override void OnPreOpen()
        {
            m_Time = 0.0f;
            m_CheckVolumeTime = 0.0f;
            m_VoiceSlider.value = 0;
        }

        protected override void OnAfterOpen()
        {
        }

        protected override void OnPreClose()
        {
        }

        protected override void OnAfterClose()
        {
        }
        #endregion

        protected override void LateUpdate()
        {
            base.LateUpdate();
            m_Time += Time.deltaTime;
            m_CheckVolumeTime += Time.deltaTime;
            if (m_Time >= m_VoiceTime)
            {
                m_Time = 0.0f;
                CloseImmediately();
                return;
            }
            if (m_CheckVolumeTime > m_CheckVolumeInterval)
            {
                m_VoiceSlider.value = Mathf.Min(Volume, 5);
            }
        }

        float[] samples = new float[128];
        public int Volume
        {
            get
            {
                try
                {
                    if (Microphone.IsRecording(null)
                    && audioSource != null && audioSource.clip != null)
                    {
                        int sampleSize = 128;
                        int startPosition = Microphone.GetPosition(null) - (sampleSize + 1);
                        if (startPosition < 0)
                        {
                            return 1;
                        }
                        audioSource.clip.GetData(samples, startPosition);
                        var wavePeak = 0f;
                        for (int i = 0; i < sampleSize; i++)
                        {
                            if (wavePeak < samples[i])
                            {
                                wavePeak = samples[i];
                            }
                        }
                        return (int)(Mathf.Abs(wavePeak) * 5f) + 1;
                    }
                }
                catch (Exception)
                {
                }
                return 0;
            }
        }
    }

}