package com.ruoyi.media.service.impl;

import com.alibaba.fastjson2.JSONObject;
import com.dtflys.forest.exceptions.ForestNetworkException;
import com.dtflys.forest.exceptions.ForestRuntimeException;
import com.ruoyi.common.constant.HttpStatus;
import com.ruoyi.common.core.page.TableDataInfo;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.media.domain.*;
import com.ruoyi.media.service.IMediaService;
import com.ruoyi.utils.forest.MediaClient;
import com.ruoyi.utils.tools.ArdTool;
import io.swagger.models.auth.In;
import lombok.extern.slf4j.Slf4j;
import org.apache.poi.ss.formula.functions.T;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * @Description: 流媒体业务
 * @ClassName: MediaService
 * @Author: 刘苏义
 * @Date: 2023年07月13日9:28
 * @Version: 1.0
 **/
@Service
@Slf4j(topic = "vtdu")
@Order(2)
public class MediaServiceImpl implements IMediaService {

    @Resource
    MediaClient mediaClient;

    @Value("${mediamtx.host}")
    String mediamtxHost;


    /**
     * 添加流媒体
     * name 相机ID
     * sourceUrl rtsp地址
     * isCode 0-不转码 1-转码
     * mode 0-gpu硬解码 1-cpu软解码
     * <p>
     * 刘苏义
     * 2023/10/12 9:03:41
     */
    @Override
    public Map<String, String> addPath(String name, String sourceUrl, String mode, String isCode) {
        Map<String, String> map = new HashMap<>();
        try {
            String rtspUrl = "rtsp://" + mediamtxHost + ":8554/" + name;
            String rtmpUrl = "rtmp://" + mediamtxHost + ":1935/" + name;
            String webrtcUrl = "http://" + mediamtxHost + ":8889/" + name;

            Conf conf = new Conf();
            String rootPath = System.getProperty("user.dir").replaceAll("\\\\", "/") + "/server/mediamtx/";
            if (isCode.equals("1")) {
                conf.setSource("publisher");
                //默认软解码
                String cmd = "ffmpeg -rtsp_transport tcp -i " + sourceUrl + " -vcodec libx264 -preset:v ultrafast -r 25 -keyint_min 25 -g 60 -sc_threshold 0 -threads 6  -b:v 2048k -acodec opus  -strict -2 -f rtsp rtsp://localhost:$RTSP_PORT/$MTX_PATH";
                if (mode.equals("0")) {//硬解码
                    cmd = rootPath + "ffmpeg -hwaccel cuvid -c:v hevc_cuvid  -rtsp_transport tcp  -i " + sourceUrl + " -c:v h264_nvenc  -r 25 -g 60 -sc_threshold 0 -threads 6  -b:v 2048k -bf 0 -acodec opus  -strict -2 -f rtsp rtsp://localhost:$RTSP_PORT/$MTX_PATH";
                }
                conf.setRunOnDemand(cmd);
                conf.setRunOnDemandRestart(true);
                conf.setRunOnDemandCloseAfter("5s");
            } else {
                conf.setSource(sourceUrl);
                conf.setSourceOnDemand(true);
            }
            conf.setMaxReaders(100);
            conf.setSourceProtocol("tcp");

            if (!checkNameExist(name)) {
                mediaClient.addPath(name, conf);
            } else {
                mediaClient.editPath(name, conf);
            }

            map.put("rtspUrl", rtspUrl);
            map.put("rtmpUrl", rtmpUrl);
            map.put("webrtcUrl", webrtcUrl);
        } catch (ForestNetworkException ex) {
            log.error("添加流媒体异常：" + ex.getMessage());
        } catch (ForestRuntimeException ex) {
            log.error("添加流媒体异常：" + ex.getMessage());
        }
        return map;
    }

    @Override
    public Map<String, String> editPath(String name, String sourceUrl, String mode, String isCode) {
        Map<String, String> map = new HashMap<>();
        try {
            String rtspUrl = "rtsp://" + mediamtxHost + ":8554/" + name;
            String rtmpUrl = "rtmp://" + mediamtxHost + ":1935/" + name;
            String webrtcUrl = "http://" + mediamtxHost + ":8889/" + name;

            Conf conf = new Conf();
            String rootPath = System.getProperty("user.dir").replaceAll("\\\\", "/") + "/lib/mediamtx/";
            if (isCode.equals("1")) {
                conf.setSource("publisher");
                //默认软解码
                String cmd = "ffmpeg -rtsp_transport tcp -i " + sourceUrl + " -vcodec libx264 -preset:v ultrafast -r 25 -keyint_min 25 -g 60 -sc_threshold 0 -threads 6  -b:v 2048k -acodec opus  -strict -2 -f rtsp rtsp://localhost:$RTSP_PORT/$MTX_PATH";
                if (mode.equals("0")) {//硬解码
                    cmd = "ffmpeg -hwaccel cuvid -c:v hevc_cuvid  -rtsp_transport tcp  -i " + sourceUrl + " -c:v h264_nvenc  -r 25 -g 60 -sc_threshold 0 -threads 6  -b:v 2048k -bf 0 -acodec opus  -strict -2 -f rtsp rtsp://localhost:$RTSP_PORT/$MTX_PATH";
                }
                conf.setRunOnDemand(cmd);
                conf.setRunOnDemandRestart(true);
                conf.setRunOnDemandCloseAfter("5s");
            } else {
                conf.setSource(sourceUrl);
                conf.setSourceOnDemand(true);
                conf.setRunOnDemand("");
                conf.setRunOnDemandRestart(false);
                conf.setRunOnDemandCloseAfter("5s");
            }
            conf.setMaxReaders(100);
            conf.setSourceProtocol("tcp");

            if (checkNameExist(name)) {
                mediaClient.editPath(name, conf);
            }

            map.put("rtspUrl", rtspUrl);
            map.put("rtmpUrl", rtmpUrl);
            map.put("webrtcUrl", webrtcUrl);
        } catch (ForestRuntimeException ex) {
            log.error("修改流媒体异常：" + ex.getMessage());
        }
        return map;
    }

    @Override
    public StreamInfo getPathInfo(String name) {
        Conf conf = mediaClient.getPathInfo(name);
        StreamInfo info = new StreamInfo();
        //ID
        info.setName(name);
        String runOn = "";
        if (StringUtils.isNotEmpty(conf.getRunOnDemand())) {
            runOn = conf.getRunOnDemand();
            info.setMode("0");
        } else {
            info.setMode("1");
        }
        //RTSP源地址
        Matcher matcher = Pattern.compile("rtsp://[^\\s\"]+").matcher(runOn);
        if (matcher.find()) {
            info.setRtspSource(matcher.group());
            info.setIsCode("1");
        } else {
            info.setRtspSource(conf.getSource());
            info.setIsCode("0");
        }
        return info;
    }

    @Override
    public void removePath(String[] names) {
        try {
            for (String name : names) {
                if (checkNameExist(name)) {
                    mediaClient.removePath(name);
                }
            }
        } catch (Exception ex) {
            log.error("批量移除流媒体异常：" + ex.getMessage());
        }
    }

    @Override
    public void removePath(String name) {
        try {
            if (checkNameExist(name)) {
                mediaClient.removePath(name);
            }
        } catch (ForestRuntimeException ex) {
            log.error("移除流媒体异常：" + ex.getMessage());
        }
    }

    @Override
    public List<StreamInfo> paths(Integer pageNum, Integer pageSize) {
        Paths paths = mediaClient.paths(pageNum - 1, pageSize);
        List<Items> items = paths.getItems();
        List<StreamInfo> pathInfoList = new ArrayList<>();
        for (Items item : items) {
            StreamInfo info = new StreamInfo();
            //ID
            String name = item.getName();
            info.setName(name);

            Conf conf = mediaClient.getPathInfo(name);
            String runOn = "";
            if (StringUtils.isNotEmpty(conf.getRunOnDemand())) {
                runOn = conf.getRunOnDemand();
            }
            //RTSP源地址
            Matcher matcher = Pattern.compile("rtsp://[^\\s\"]+").matcher(runOn);
            if (matcher.find()) {
                info.setRtspSource(matcher.group());
                info.setIsCode("1");
            } else {
                info.setRtspSource(conf.getSource());
                info.setIsCode("0");
            }
            //传输协议
            matcher = Pattern.compile("-rtsp_transport\\s+(\\w+)").matcher(runOn);
            if (matcher.find()) {
                info.setProtocol(matcher.group(1));
            }

            pathInfoList.add(info);
        }
        return pathInfoList;
    }

    @Override
    public RtspSession getRtspSessionById(String sessionId) {
        return mediaClient.getRtspsessionById(sessionId);
    }

    @Override
    public WebrtcSession getWebrtcSessionById(String sessionId) {
        return mediaClient.getWebrtcsessionById(sessionId);
    }

    @Override
    public RtmpSession getRtmpSessionById(String sessionId) {
        return mediaClient.getRtmpsessionById(sessionId);
    }

    /**
     * 获取推流列表
     * 刘苏义
     * 2023/8/29 9:37:05
     */
    @Override
    public TableDataInfo getPushStreamList(Integer pageNum, Integer pageSize) {
        TableDataInfo tableDataInfo = new TableDataInfo();
        List<StreamInfo> PushStreamInfoList = new ArrayList<>();
        Paths paths = mediaClient.paths(pageNum - 1, pageSize);
        int itemCount = paths.getItemCount();
        tableDataInfo.setTotal(itemCount);
        List<Items> items = paths.getItems();
        for (Items item : items) {
            StreamInfo info = new StreamInfo();
            //ID
            String name = item.getName();
            info.setName(name);
            Conf conf = mediaClient.getPathInfo(name);
            //RTMP播放地址
            String rtmpUrl = "rtmp://" + mediamtxHost + ":1935/" + name;
            info.setRtmpUrl(rtmpUrl);
            //RTSP播放地址
            String rtspUrl = "rtsp://" + mediamtxHost + ":8554/" + name;
            info.setRtspUrl(rtspUrl);
            //WEBRTC播放地址
            String webrtcUrl = "http://" + mediamtxHost + ":8889/" + name;
            info.setWebrtcUrl(webrtcUrl);
            Source source = item.getSource();
            if (source == null || source.getId().equals("")) {
                //会话ID
                info.setId("0");
                //下行流量
                long bytesReceived = item.getBytesReceived();
                String formatReceivedSize = ArdTool.formatFileSize(bytesReceived);
                info.setDownTraffic(formatReceivedSize);
                //上行流量
                long bytesSent = item.getBytesSent();
                String formatSentdSize = ArdTool.formatFileSize(bytesSent);
                info.setUpTraffic(formatSentdSize);
                info.setBeginTime(item.getReadyTime());
            } else {
                RtspSession rtspSession = getRtspSessionById(source.getId());
                //会话ID
                info.setId(rtspSession.getId());
                //开始推流时间
                info.setBeginTime(rtspSession.getCreated());
                //上行流量
                long bytesReceived = rtspSession.getBytesReceived();
                String formatReceivedSize = ArdTool.formatFileSize(bytesReceived);
                info.setUpTraffic(formatReceivedSize);
                //下行流量
                long bytesSent = rtspSession.getBytesSent();
                String formatSentSize = ArdTool.formatFileSize(bytesSent);
                info.setDownTraffic(formatSentSize);
                //推流服务器
                info.setRemoteAddr(rtspSession.getRemoteAddr());
            }
            //RTSP源地址
            String runOn = "";
            if (StringUtils.isNotEmpty(conf.getRunOnDemand())) {
                runOn = conf.getRunOnDemand();
            }
            Matcher matcher = Pattern.compile("rtsp://[^\\s\"]+").matcher(runOn);
            if (matcher.find()) {
                info.setRtspSource(matcher.group());
            } else {
                info.setRtspSource(conf.getSource());
            }
            //传输协议
            info.setProtocol(conf.getSourceProtocol());
            //拉流数量
            List<Readers> readers = item.getReaders();
            info.setNum(readers.size());

            PushStreamInfoList.add(info);
        }
        tableDataInfo.setRows(PushStreamInfoList);
        tableDataInfo.setCode(HttpStatus.SUCCESS);
        tableDataInfo.setMsg("查询成功");
        return tableDataInfo;
    }

    /**
     * 获取webrtc拉流列表
     * 刘苏义
     * 2023/8/29 9:37:05
     */
    @Override
    public TableDataInfo getPullWebrtcStreamList(Integer pageNum, Integer pageSize) {
        TableDataInfo tableDataInfo = new TableDataInfo();
        WebrtcSessions WebrtcSessions = mediaClient.webrtcsessions(pageNum-1, pageSize);
        List<WebrtcSession> webrtcsessions = WebrtcSessions.getItems();
        webrtcsessions.stream().forEach(
                webrtcSession -> {
                    webrtcSession.setUpStream(ArdTool.formatFileSize(webrtcSession.getBytesReceived()));
                    webrtcSession.setDownStream(ArdTool.formatFileSize(webrtcSession.getBytesSent()));
                    webrtcSession.setBeginTime(webrtcSession.getCreated());
                }
        );
        tableDataInfo.setTotal(WebrtcSessions.getItemCount());
        tableDataInfo.setRows(webrtcsessions);
        tableDataInfo.setCode(HttpStatus.SUCCESS);
        tableDataInfo.setMsg("查询成功");
        return tableDataInfo;
    }

    /**
     * 获取rtmp拉流列表
     * 刘苏义
     * 2023/8/29 9:37:05
     */
    @Override
    public TableDataInfo getPullRtmpStreamList(Integer pageNum, Integer pageSize) {
        TableDataInfo tableDataInfo = new TableDataInfo();
        RtmpSessions rtmpSessions = mediaClient.rtmpsessions(pageNum-1, pageSize);
        List<RtmpSession> webrtcsessions = rtmpSessions.getItems();
        webrtcsessions.stream().forEach(
                webrtcSession -> {
                    webrtcSession.setUpStream(ArdTool.formatFileSize(webrtcSession.getBytesReceived()));
                    webrtcSession.setDownStream(ArdTool.formatFileSize(webrtcSession.getBytesSent()));
                    webrtcSession.setBeginTime(webrtcSession.getCreated());
                }
        );
        tableDataInfo.setTotal(rtmpSessions.getItemCount());
        tableDataInfo.setRows(webrtcsessions);
        tableDataInfo.setCode(HttpStatus.SUCCESS);
        tableDataInfo.setMsg("查询成功");
        return tableDataInfo;
    }

    /**
     * 获取rtsp拉流列表
     * 刘苏义
     * 2023/8/29 9:37:05
     */
    @Override
    public TableDataInfo getPullRtspStreamList(Integer pageNum, Integer pageSize) {
        TableDataInfo tableDataInfo = new TableDataInfo();
        RtspSessions rtspSessions = mediaClient.rtspsessions(pageNum-1, pageSize);
        List<RtspSession> webrtcsessions = rtspSessions.getItems();
        webrtcsessions.stream().forEach(
                webrtcSession -> {
                    webrtcSession.setUpStream(ArdTool.formatFileSize(webrtcSession.getBytesReceived()));
                    webrtcSession.setDownStream(ArdTool.formatFileSize(webrtcSession.getBytesSent()));
                    webrtcSession.setBeginTime(webrtcSession.getCreated());
                }
        );
        tableDataInfo.setTotal(rtspSessions.getItemCount());
        tableDataInfo.setRows(webrtcsessions);
        tableDataInfo.setCode(HttpStatus.SUCCESS);
        tableDataInfo.setMsg("查询成功");
        return tableDataInfo;
    }

    /**
     * 踢出rtsp会话
     * 刘苏义
     * 2023/8/29 9:37:05
     */
    @Override
    public Boolean kickRtspSession(String sessionId) {
        try {
            mediaClient.kickRtspSessions(sessionId);
            return true;
        } catch (Exception ex) {
            return false;
        }
    }

    /**
     * 踢出rtmp会话
     * 刘苏义
     * 2023/8/29 9:37:05
     */
    @Override
    public Boolean kickRtmpSession(String sessionId) {
        try {
            mediaClient.kickRtmpSessions(sessionId);
            return true;
        } catch (Exception ex) {
            return false;
        }
    }

    /**
     * 踢出webrtc会话
     * 刘苏义
     * 2023/8/29 9:37:05
     */
    @Override
    public Boolean kickWebrtcSession(String sessionId) {
        try {
            mediaClient.kickWebrtcSessions(sessionId);
            return true;
        } catch (Exception ex) {
            return false;
        }
    }

    /**
     * 获取流媒体name列表
     * 刘苏义
     * 2023/10/13 14:19:07
     */
    @Override
    public List<String> getNameList() {
        List<String> nameList = new ArrayList<>();
        try {
            Paths paths = mediaClient.paths(0, 1000);
            List<Items> items = paths.getItems();
            for (Items item : items) {
                nameList.add(item.getName());
            }
        } catch (Exception ex) {
            log.error("获取流媒体name列表异常：" + ex.getMessage());
        }
        return nameList;
    }

    /**
     * 检查name是否存在
     * 刘苏义
     * 2023/10/19 15:18:45
     */
    @Override
    public boolean checkNameExist(String name) {
        boolean result = false;
        List<String> nameList = getNameList();
        if (nameList.contains(name)) {
            result = true;
        }
        return result;
    }


}