using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Video;
namespace Kill.UI.Components
{
    public class VideoCtrl : MonoBehaviour
{
    public bool istest;
    public VideoPlayer videoPlayer;

    public bool needFullScreen=false;
    bool isFullScreen=false;
    /// <summary>
    /// 0:正常播放 1:全屏播放
    /// </summary>
    public List<RenderTexture> renderTextures;
    public RawImage windowImage;
    public RawImage fullImage;
    public GameObject playButton;
    public GameObject pauseButton;
    public Text totalTimeText;
    public Text nowTime;
    public Slider slider;
    bool isplaying = false;
    bool ispause = false;
    Action playOver;

    
    private void FixedUpdate()
    {
        if (isplaying)
        {

            OnVideoPlaying();
        }

    }
    public void Init(string url, Action playOver)
    {
        this.playOver = playOver;
        SetVideo(url);
        if(playButton!=null)
        {
            playButton.SetActive(false);
        }
        if(pauseButton!=null)
        {
            pauseButton.SetActive(false);
        }
    }

    public void PlayVideo()
    {
        StartCoroutine(YieldPlay());

    }



    public IEnumerator YieldPlay()
    {
        yield return new WaitForSeconds(0.1f);
        ispause = false;
        videoPlayer.Play();
         if(playButton!=null)
        {
            playButton.SetActive(false);
        }
        if(pauseButton!=null)
        {
            pauseButton.SetActive(true);
        }
        isplaying=true;
    }
    public void PauseVideo()
    {
        ispause = true;
        videoPlayer.Pause();
        isplaying = false;
        if(playButton!=null)
        {
            playButton.SetActive(true);
        }
        if(pauseButton!=null)
        {
            pauseButton.SetActive(false);
        }
    }
    public void RePlay()
    {
        videoPlayer.Stop();
        videoPlayer.frame = 0;
        PlayVideo();
    }
    public void SetVideo(string url)
    {
        videoPlayer.url = url;
        videoPlayer.prepareCompleted += VideoPrepared;
        videoPlayer.Prepare();
        if(playButton!=null)
        {
            playButton.SetActive(true);
        }
    }
    int totalTime = 0;
    public void VideoPrepared(VideoPlayer player)
    {
        RenderTexture texture = new RenderTexture((int)player.width, (int)player.height, 1);
        renderTextures.Add(texture);
        player.targetTexture = texture;
        windowImage.texture = texture;
        if (needFullScreen)
        {
            RenderTexture fullTexture = new RenderTexture((int)Screen.height, (int)Screen.width, 1);
            fullImage.GetComponent<RectTransform>().sizeDelta=new Vector2(Screen.height,Screen.width);
            renderTextures.Add(fullTexture);
            fullImage.texture = fullTexture;
        }
        videoPlayer.frame = 0;
        if(slider!=null)
        {
            totalTime = (int)(player.frameCount / player.frameRate + 0.5f);
            totalTimeText.text = SecondToHour(totalTime);
        }
        
        videoPlayer.prepareCompleted -= VideoPrepared;

        player.loopPointReached += VideoOver;
        if (playButton != null)
            playButton.SetActive(true);

    }
    public void ShowAnimation(int dir)
    {
        Animation Anim = GetComponent<Animation>();
        if (Anim != null)
        {
            if (dir == -1)
            {
                Anim["视频出现"].time = Anim["视频出现"].clip.length;
                Anim["视频出现"].speed = -1;
                Anim.Play("视频出现");
            }
            else
            {
                Anim["视频出现"].time = 0;
                Anim["视频出现"].speed = 1;
                Anim.Play("视频出现");
            }
        }
    }
    long lastFrame = 0;
    /// <summary>
    /// 播放中事件（给进度条赋值）
    /// </summary>

    public void OnVideoPlaying()
    {
        if (slider == null)
            return;
        if (Mathf.Abs(videoPlayer.frame - lastFrame) < 1)
            return;
        slider.value = (videoPlayer.frame + 1) / (float)videoPlayer.frameCount;
        lastFrame = videoPlayer.frame;
        nowTime.text = SecondToHour((int)(totalTime * slider.value));
    }
    /// <summary>
    /// 拖动进度条
    /// </summary>
    public void PointDownUp()
    {
        //if (slider.value != lastValue)
        //{
        //    videoPlayer.frame = (long)(videoPlayer.frameCount * slider.value);
        //}
        if(slider.value>=0.98f)
        {
            videoPlayer.Stop();
            VideoOver(videoPlayer);
            return;

        }
        videoPlayer.frame = (long)(videoPlayer.frameCount * slider.value) - 1;
        nowTime.text = SecondToHour((int)(totalTime * slider.value));
        if (!ispause)
        {
            videoPlayer.Play();
            isplaying = true;
        }
        // TeacherServer.m_instance.SendVideoProcess((long)(videoPlayer.frameCount * slider.value) - 1);
    }
    public void PointDown()
    {
        videoPlayer.Pause();
        isplaying = false;
    }
    public void Draging()
    {
        videoPlayer.frame = (long)(videoPlayer.frameCount * slider.value) - 1;
        nowTime.text = SecondToHour((int)(totalTime * slider.value));
    }
    public void VideoOver(VideoPlayer vp)
    {
        vp.loopPointReached -= VideoOver;
        isplaying = false;
        if(playButton!=null)
        {
            playButton.SetActive(true);
        }
        if(pauseButton!=null)
        {
            pauseButton.SetActive(false);
        }
        playOver();
    }

    public void SetFullScreen(bool isFullScreen)
    {
        this.isFullScreen = isFullScreen;
        if (isFullScreen)
        {
            videoPlayer.targetTexture = renderTextures[1];
            fullImage.transform.parent.gameObject.SetActive(true);
            UIManager.Instance.RegisterBackAction(()=>SetFullScreen(false));
            if(ispause)
                PlayVideo();
        }
        else
        {
            videoPlayer.targetTexture = renderTextures[0];
            fullImage.transform.parent.gameObject.SetActive(false);
        }
    }
    /// <summary>
    /// 秒转换小时
    /// </summary>
    /// <param name="time"></param>
    /// <returns></returns>
    public string SecondToHour(float time)
    {
        int hour = 0;
        int minute = 0;
        int second = 0;
        second = (int)time;

        if (second > 60)
        {
            minute = second / 60;
            second = second % 60;
        }
        if (minute > 60)
        {
            hour = minute / 60;
            minute = minute % 60;
        }
        string result = "";
        if (hour > 0)
        {
            result += hour + ":";

        }
        if (minute < 10)
            result += "0";
        result += minute + ":";
        if (second < 10)
            result += "0";
        result += second.ToString();
        return result;
    }
}
}