package com.ruoyi.media.service.impl;

import com.alibaba.fastjson2.JSONObject;
import com.dtflys.forest.exceptions.ForestNetworkException;
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 lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
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 = "cmd")
@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) {

        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.setMaxReaders(100);
        conf.setSourceProtocol("tcp");

        if (!checkNameExist(name)) {
            mediaClient.addPath(name, conf);
        }
        Map<String, String> map = new HashMap<>();
        map.put("rtspUrl", rtspUrl);
        map.put("rtmpUrl", rtmpUrl);
        map.put("webrtcUrl", webrtcUrl);
        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 (ForestNetworkException ex) {
            log.error(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");
        }
        //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) {
        for (String name : names) {
            if (checkNameExist(name)) {
                mediaClient.removePath(name);
            }
        }
    }

    @Override
    public void removePath(String name) {
        if (checkNameExist(name)) {
            mediaClient.removePath(name);
        }
    }

    @Override
    public List<StreamInfo> paths() {
        String list = mediaClient.paths();
        JsonsRoot jsonsRoot = JSONObject.parseObject(list, JsonsRoot.class);
        List<Items> items = jsonsRoot.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) {
        String list = mediaClient.getRtspsessionById(sessionId);
        RtspSession rtspSession = JSONObject.parseObject(list, RtspSession.class);
        return rtspSession;
    }

    @Override
    public WebrtcSession getWebrtcSessionById(String sessionId) {
        String list = mediaClient.getWebrtcsessionById(sessionId);
        WebrtcSession webrtcSession = JSONObject.parseObject(list, WebrtcSession.class);
        return webrtcSession;
    }

    @Override
    public RtmpSession getRtmpSessionById(String sessionId) {
        String list = mediaClient.getRtmpsessionById(sessionId);
        RtmpSession rtmpSession = JSONObject.parseObject(list, RtmpSession.class);
        return rtmpSession;
    }

    /**
     * 获取推流列表
     * 刘苏义
     * 2023/8/29 9:37:05
     */
    @Override
    public List<StreamInfo> getPushStreamList() {
        List<StreamInfo> PushStreamInfoList = new ArrayList<>();
        String list = mediaClient.paths();
        JsonsRoot jsonsRoot = JSONObject.parseObject(list, JsonsRoot.class);
        List<Items> items = jsonsRoot.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");
                //上行流量
                long bytesReceived = item.getBytesReceived();
                String formatReceivedSize = ArdTool.formatFileSize(bytesReceived);
                info.setUpTraffic(formatReceivedSize);
            } 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);
        }
        return PushStreamInfoList;
    }

    /**
     * 获取拉流列表
     * 刘苏义
     * 2023/8/29 9:37:05
     */
    @Override
    public List<StreamInfo> getPullStreamList() {
        List<StreamInfo> PullStreamInfoList = new ArrayList<>();
        String list = mediaClient.paths();
        JsonsRoot jsonsRoot = JSONObject.parseObject(list, JsonsRoot.class);
        List<Items> items = jsonsRoot.getItems();
        for (Items item : items) {
            List<Readers> readers = item.getReaders();
            for (Readers reader : readers) {
                StreamInfo info = new StreamInfo();
                //ID
                String name = item.getName();
                info.setName(name);
                Conf conf = mediaClient.getPathInfo(name);
                //传输协议
                info.setProtocol(conf.getSourceProtocol());

                String type = reader.getType();
                switch (type) {
                    case "rtmpConn":
                        info.setSessionType("rtmp");
                        //webrtc播放地址
                        String url = "rtmp://" + mediamtxHost + ":1935/" + name;
                        info.setRtspUrl(url);
                        RtmpSession rtmpSession = getRtmpSessionById(reader.getId());
                        //会话ID
                        info.setId(rtmpSession.getId());
                        //开始拉流时间
                        info.setBeginTime(rtmpSession.getCreated());
                        //上行流量
                        long bytesReceived = rtmpSession.getBytesReceived();
                        String formatReceivedSize = ArdTool.formatFileSize(bytesReceived);
                        info.setUpTraffic(formatReceivedSize);
                        //下行流量
                        long bytesSent = rtmpSession.getBytesSent();
                        String formatSentSize = ArdTool.formatFileSize(bytesSent);
                        info.setDownTraffic(formatSentSize);
                        //拉流服务器
                        info.setRemoteAddr(rtmpSession.getRemoteAddr());
                        PullStreamInfoList.add(info);
                        break;
                    case "webRTCSession":
                        info.setSessionType("webrtc");
                        //webrtc播放地址
                        url = "http://" + mediamtxHost + ":8889/" + name;
                        info.setRtspUrl(url);
                        WebrtcSession webrtcSession = getWebrtcSessionById(reader.getId());
                        //会话ID
                        info.setId(webrtcSession.getId());
                        //开始拉流时间
                        info.setBeginTime(webrtcSession.getCreated());
                        //上行流量
                        bytesReceived = webrtcSession.getBytesReceived();
                        formatReceivedSize = ArdTool.formatFileSize(bytesReceived);
                        info.setUpTraffic(formatReceivedSize);
                        //下行流量
                        bytesSent = webrtcSession.getBytesSent();
                        formatSentSize = ArdTool.formatFileSize(bytesSent);
                        info.setDownTraffic(formatSentSize);
                        //拉流服务器
                        info.setRemoteAddr(webrtcSession.getRemoteAddr());
                        PullStreamInfoList.add(info);
                        break;
                    case "rtspSession":
                        info.setSessionType("rtsp");
                        //RTSP播放地址
                        String rtspUrl = "rtsp://" + mediamtxHost + ":8554/" + name;
                        info.setRtspUrl(rtspUrl);
                        RtspSession rtspSession = getRtspSessionById(reader.getId());
                        //会话ID
                        info.setId(rtspSession.getId());
                        //开始拉流时间
                        info.setBeginTime(rtspSession.getCreated());
                        //上行流量
                        bytesReceived = rtspSession.getBytesReceived();
                        formatReceivedSize = ArdTool.formatFileSize(bytesReceived);
                        info.setUpTraffic(formatReceivedSize);
                        //下行流量
                        bytesSent = rtspSession.getBytesSent();
                        formatSentSize = ArdTool.formatFileSize(bytesSent);
                        info.setDownTraffic(formatSentSize);
                        //拉流服务器
                        info.setRemoteAddr(rtspSession.getRemoteAddr());
                        PullStreamInfoList.add(info);
                        break;
                }
            }
        }
        Comparator<StreamInfo> comparator = Comparator.comparing(streamInfo -> streamInfo.getBeginTime()); // 使用Collections.sort方法进行排序 Collections.sort(personList, comparator);
        Collections.sort(PullStreamInfoList, comparator.reversed());
        return PullStreamInfoList;
    }

    /**
     * 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<>();
        String paths = mediaClient.paths();
        JsonsRoot jsonsRoot = JSONObject.parseObject(paths, JsonsRoot.class);
        List<Items> items = jsonsRoot.getItems();
        for (Items item : items) {
            nameList.add(item.getName());
        }
        return nameList;
    }

    /**
     * 检查名称是否存在
     * 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;
    }

    /**
     * 配置流媒体参数
     */
    @Override
    public String setConfig(Config config) {
        return mediaClient.setConfig(config);
    }
}