package com.genersoft.iot.vmp.vmanager.gb28181.play;

import com.alibaba.fastjson2.JSONArray;
import com.alibaba.fastjson2.JSONObject;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.genersoft.iot.vmp.common.InviteInfo;
import com.genersoft.iot.vmp.common.InviteSessionType;
import com.genersoft.iot.vmp.common.StreamInfo;
import com.genersoft.iot.vmp.conf.UserSetting;
import com.genersoft.iot.vmp.conf.exception.ControllerException;
import com.genersoft.iot.vmp.conf.security.JwtUtils;
import com.genersoft.iot.vmp.gb28181.bean.Device;
import com.genersoft.iot.vmp.gb28181.bean.SsrcTransaction;
import com.genersoft.iot.vmp.gb28181.session.VideoStreamSessionManager;
import com.genersoft.iot.vmp.gb28181.transmit.callback.DeferredResultHolder;
import com.genersoft.iot.vmp.gb28181.transmit.callback.RequestMessage;
import com.genersoft.iot.vmp.gb28181.transmit.cmd.impl.SIPCommander;
import com.genersoft.iot.vmp.media.bean.MediaServer;
import com.genersoft.iot.vmp.media.service.IMediaServerService;
import com.genersoft.iot.vmp.media.zlm.ZLMRESTfulUtils;
import com.genersoft.iot.vmp.service.IInviteStreamService;
import com.genersoft.iot.vmp.service.IPlayService;
import com.genersoft.iot.vmp.service.bean.InviteErrorCode;
import com.genersoft.iot.vmp.storager.IVideoManagerStorage;
import com.genersoft.iot.vmp.utils.DateUtil;
import com.genersoft.iot.vmp.utils.IdUtils;
import com.genersoft.iot.vmp.vmanager.bean.AudioBroadcastResult;
import com.genersoft.iot.vmp.vmanager.bean.ErrorCode;
import com.genersoft.iot.vmp.vmanager.bean.StreamContent;
import com.genersoft.iot.vmp.vmanager.bean.WVPResult;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.security.SecurityRequirement;
import io.swagger.v3.oas.annotations.tags.Tag;
import okhttp3.HttpUrl;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import org.bytedeco.javacv.*;
import org.bytedeco.opencv.global.opencv_imgcodecs;
import org.bytedeco.opencv.opencv_core.Mat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.context.request.async.DeferredResult;

import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletRequest;
import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.*;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.UUID;


/**
 * @author lin
 */
@Tag(name = "国标设备点播")

@RestController
@RequestMapping("/api/play")
public class PlayController {

    private final static Logger logger = LoggerFactory.getLogger(PlayController.class);
    @Value("${platform.upload}")
    public String upload;
    @Autowired
    private SIPCommander cmder;
    @Autowired
    private ZLMRESTfulUtils zlmresTfulUtils;
    @Autowired
    private VideoStreamSessionManager streamSession;

    @Autowired
    private IVideoManagerStorage storager;

    @Autowired
    private IInviteStreamService inviteStreamService;

    @Autowired
    private DeferredResultHolder resultHolder;

    @Autowired
    private IPlayService playService;

    @Autowired
    private IMediaServerService mediaServerService;

    @Autowired
    private UserSetting userSetting;

    private final SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");

    @Operation(summary = "开始点播", security = @SecurityRequirement(name = JwtUtils.HEADER))
    @Parameter(name = "deviceId", description = "设备国标编号", required = true)
    @Parameter(name = "channelId", description = "通道国标编号", required = true)
    @GetMapping("/start/{deviceId}/{channelId}")
    public DeferredResult<WVPResult<StreamContent>> play(HttpServletRequest request, @PathVariable String deviceId,
                                                         @PathVariable String channelId) {

        logger.info("[开始点播] deviceId：{}, channelId：{}, ", deviceId, channelId);
        // 获取可用的zlm
        Device device = storager.queryVideoDevice(deviceId);
        MediaServer newMediaServerItem = playService.getNewMediaServerItem(device);

        RequestMessage requestMessage = new RequestMessage();
        String key = DeferredResultHolder.CALLBACK_CMD_PLAY + deviceId + channelId;
        requestMessage.setKey(key);
        String uuid = UUID.randomUUID().toString();
        requestMessage.setId(uuid);
        DeferredResult<WVPResult<StreamContent>> result = new DeferredResult<>(userSetting.getPlayTimeout().longValue());

        result.onTimeout(() -> {
            logger.info("[点播等待超时] deviceId：{}, channelId：{}, ", deviceId, channelId);
            // 释放rtpserver
            WVPResult<StreamInfo> wvpResult = new WVPResult<>();
            wvpResult.setCode(ErrorCode.ERROR100.getCode());
            wvpResult.setMsg("点播超时");
            requestMessage.setData(wvpResult);
            resultHolder.invokeAllResult(requestMessage);
            inviteStreamService.removeInviteInfoByDeviceAndChannel(InviteSessionType.PLAY, deviceId, channelId);
            storager.stopPlay(deviceId, channelId);
        });

        // 录像查询以channelId作为deviceId查询
        resultHolder.put(key, uuid, result);

        playService.play(newMediaServerItem, deviceId, channelId, null, (code, msg, data) -> {
            WVPResult<StreamContent> wvpResult = new WVPResult<>();
            if (code == InviteErrorCode.SUCCESS.getCode()) {
                wvpResult.setCode(ErrorCode.SUCCESS.getCode());
                wvpResult.setMsg(ErrorCode.SUCCESS.getMsg());

                if (data != null) {
                    StreamInfo streamInfo = (StreamInfo) data;
                    if (userSetting.getUseSourceIpAsStreamIp()) {
                        streamInfo = streamInfo.clone();//深拷贝
                        String host;
                        try {
                            URL url = new URL(request.getRequestURL().toString());
                            host = url.getHost();
                        } catch (MalformedURLException e) {
                            host = request.getLocalAddr();
                        }
                        streamInfo.channgeStreamIp(host);
                    }
                    if (!ObjectUtils.isEmpty(newMediaServerItem.getTranscodeSuffix()) && !"null".equalsIgnoreCase(newMediaServerItem.getTranscodeSuffix())) {
                        streamInfo.setStream(streamInfo.getStream() + "_" + newMediaServerItem.getTranscodeSuffix());
                    }
                    wvpResult.setData(new StreamContent(streamInfo));
                } else {
                    wvpResult.setCode(code);
                    wvpResult.setMsg(msg);
                }
            } else {
                wvpResult.setCode(code);
                wvpResult.setMsg(msg);
            }
            requestMessage.setData(wvpResult);
            // 此处必须释放所有请求
            resultHolder.invokeAllResult(requestMessage);
        });
        return result;
    }


    @Operation(summary = "开始点播并返回图片", security = @SecurityRequirement(name = JwtUtils.HEADER))
    @Parameter(name = "deviceId", description = "设备国标编号", required = true)
    @Parameter(name = "channelId", description = "通道国标编号", required = true)
    @GetMapping("/start/img/{deviceId}/{channelId}")
    public DeferredResult<WVPResult<String>> playReturnImg(HttpServletRequest request, @PathVariable String deviceId,
                                                           @PathVariable String channelId) throws IOException {
        logger.info("[开始点播] deviceId：{}, channelId：{}, ", deviceId, channelId);
        // 获取可用的zlm
        Device device = storager.queryVideoDevice(deviceId);
        MediaServer newMediaServerItem = playService.getNewMediaServerItem(device);
        RequestMessage requestMessage = new RequestMessage();
        String key = DeferredResultHolder.CALLBACK_CMD_PLAY + deviceId + channelId;
        requestMessage.setKey(key);
        String uuid = UUID.randomUUID().toString();
        requestMessage.setId(uuid);

        //存活时间
        DeferredResult<WVPResult<String>> result = new DeferredResult<>(120 * 1000L);

        //120秒存活
        result.onTimeout(() -> {
            logger.info("[点播等待超时] deviceId：{}, channelId：{}, ", deviceId, channelId);
            // 释放rtpserver
            WVPResult<StreamInfo> wvpResult = new WVPResult<>();
            wvpResult.setCode(ErrorCode.ERROR100.getCode());
            wvpResult.setMsg("点播超时");
            requestMessage.setData(wvpResult);
            resultHolder.invokeAllResult(requestMessage);
            inviteStreamService.removeInviteInfoByDeviceAndChannel(InviteSessionType.PLAY, deviceId, channelId);
            storager.stopPlay(deviceId, channelId);
        });

        // 录像查询以channelId作为deviceId查询
        resultHolder.put(key, uuid, result);

        playService.play(newMediaServerItem, deviceId, channelId, null, (code, msg, data) -> {
            WVPResult<String> wvpResult = new WVPResult<>();
            if (code == InviteErrorCode.SUCCESS.getCode()) {
                wvpResult.setCode(ErrorCode.SUCCESS.getCode());
                wvpResult.setMsg(ErrorCode.SUCCESS.getMsg());

                if (data != null) {
                    StreamInfo streamInfo = (StreamInfo) data;
                    if (userSetting.getUseSourceIpAsStreamIp()) {
                        streamInfo = streamInfo.clone();//深拷贝
                        String host;
                        try {
                            URL url = new URL(request.getRequestURL().toString());
                            host = url.getHost();
                        } catch (MalformedURLException e) {
                            host = request.getLocalAddr();
                        }
                        streamInfo.channgeStreamIp(host);
                    }
                    if (!ObjectUtils.isEmpty(newMediaServerItem.getTranscodeSuffix()) && !"null".equalsIgnoreCase(newMediaServerItem.getTranscodeSuffix())) {
                        streamInfo.setStream(streamInfo.getStream() + "_" + newMediaServerItem.getTranscodeSuffix());
                    }
                    StreamContent streamContent = new StreamContent(streamInfo);
                    String rtspUrl = streamContent.getFmp4(); // 取mp4地址
                    String img = getImg(rtspUrl);
                    wvpResult.setData(img);
                } else {
                    wvpResult.setCode(code);
                    wvpResult.setMsg(msg);
                }
            } else {
                wvpResult.setCode(code);
                wvpResult.setMsg(msg);
            }
            requestMessage.setData(wvpResult);
            // 此处必须释放所有请求
            resultHolder.invokeAllResult(requestMessage);
        });
        return result;
    }

    private String getImg(String rtspUrl) {
        String imgUrl = null;
        if (StringUtils.hasText(rtspUrl)) {
            System.out.println("目标地址：" + rtspUrl);
            FFmpegFrameGrabber grabber = null;
            try {
                grabber = new FFmpegFrameGrabber(rtspUrl);
//                grabber.setOption("rtsp_transport", "tcp"); // 使用tcp的方式，不然会丢包很严重
//                grabber.setVideoOption("probesize", "10000"); // 设置捕获分析的最大字节
//                grabber.setFrameRate(25);
                grabber.startUnsafe();
                Frame frame = grabber.grabImage(); // 直接捕获一帧
//                //转换图像
//                Java2DFrameConverter converter = new Java2DFrameConverter();
//                BufferedImage srcImage = converter.getBufferedImage(frame);
//                if (srcImage!=null) {
//                    //创建文件
//                    File file = new File(picPath);
//                    //输出文件
//                    ImageIO.write(srcImage, "png", file);
//                }

                if (frame != null) {
                    System.out.println("成功捕获一帧");
                    // 将Frame转换为Mat
                    OpenCVFrameConverter.ToMat converter = new OpenCVFrameConverter.ToMat();
                    Mat mat = converter.convertToMat(frame);

                    imgUrl = format.format(new Date()) + "_" + IdUtils.randomUUID() + ".png";
                    // 生成图片路径
                    String imgPath = upload + imgUrl;
                    System.out.println("图片保存地址：" + imgPath);
                    imgUrl = "/profile/" + imgUrl;
                    // 保存图片
                    opencv_imgcodecs.imwrite(imgPath, mat);
                } else {
                    System.out.println("未捕获到帧");
                }
            } catch (FrameGrabber.Exception e) {
                e.printStackTrace();
            } finally {
                if (grabber != null) {
                    try {
                        grabber.stop(); // 停止捕获
                    } catch (FrameGrabber.Exception e) {
                        e.printStackTrace();
                    }
                }
            }
        }
        return imgUrl;
    }


    @Operation(summary = "停止点播", security = @SecurityRequirement(name = JwtUtils.HEADER))
    @Parameter(name = "deviceId", description = "设备国标编号", required = true)
    @Parameter(name = "channelId", description = "通道国标编号", required = true)
    @GetMapping("/stop/{deviceId}/{channelId}")
    public JSONObject playStop(@PathVariable String deviceId, @PathVariable String channelId) {

        logger.debug(String.format("设备预览/回放停止API调用，streamId：%s_%s", deviceId, channelId));

        if (deviceId == null || channelId == null) {
            throw new ControllerException(ErrorCode.ERROR400);
        }

        Device device = storager.queryVideoDevice(deviceId);
        if (device == null) {
            throw new ControllerException(ErrorCode.ERROR100.getCode(), "设备[" + deviceId + "]不存在");
        }

        playService.stopPlay(device, channelId);
        JSONObject json = new JSONObject();
        json.put("deviceId", deviceId);
        json.put("channelId", channelId);
        return json;
    }

    /**
     * 结束转码
     */
    @Operation(summary = "结束转码", security = @SecurityRequirement(name = JwtUtils.HEADER))
    @Parameter(name = "key", description = "视频流key", required = true)
    @Parameter(name = "mediaServerId", description = "流媒体服务ID", required = true)
    @PostMapping("/convertStop/{key}")
    public void playConvertStop(@PathVariable String key, String mediaServerId) {
        if (mediaServerId == null) {
            throw new ControllerException(ErrorCode.ERROR400.getCode(), "流媒体：" + mediaServerId + "不存在");
        }
        MediaServer mediaInfo = mediaServerService.getOne(mediaServerId);
        if (mediaInfo == null) {
            throw new ControllerException(ErrorCode.ERROR100.getCode(), "使用的流媒体已经停止运行");
        } else {
            Boolean deleted = mediaServerService.delFFmpegSource(mediaInfo, key);
            if (!deleted) {
                throw new ControllerException(ErrorCode.ERROR100);
            }
        }
    }

    @Operation(summary = "语音广播命令", security = @SecurityRequirement(name = JwtUtils.HEADER))
    @Parameter(name = "deviceId", description = "设备国标编号", required = true)
    @Parameter(name = "deviceId", description = "通道国标编号", required = true)
    @Parameter(name = "timeout", description = "推流超时时间(秒)", required = true)
    @GetMapping("/broadcast/{deviceId}/{channelId}")
    @PostMapping("/broadcast/{deviceId}/{channelId}")
    public AudioBroadcastResult broadcastApi(@PathVariable String deviceId, @PathVariable String channelId, Integer timeout, Boolean broadcastMode) {
        if (logger.isDebugEnabled()) {
            logger.debug("语音广播API调用");
        }
        Device device = storager.queryVideoDevice(deviceId);
        if (device == null) {
            throw new ControllerException(ErrorCode.ERROR400.getCode(), "未找到设备： " + deviceId);
        }
        if (channelId == null) {
            throw new ControllerException(ErrorCode.ERROR400.getCode(), "未找到通道： " + channelId);
        }

        return playService.audioBroadcast(device, channelId, broadcastMode);

    }

    @Operation(summary = "停止语音广播")
    @Parameter(name = "deviceId", description = "设备Id", required = true)
    @Parameter(name = "channelId", description = "通道Id", required = true)
    @GetMapping("/broadcast/stop/{deviceId}/{channelId}")
    @PostMapping("/broadcast/stop/{deviceId}/{channelId}")
    public void stopBroadcast(@PathVariable String deviceId, @PathVariable String channelId) {
        if (logger.isDebugEnabled()) {
            logger.debug("停止语音广播API调用");
        }
//		try {
//			playService.stopAudioBroadcast(deviceId, channelId);
//		} catch (InvalidArgumentException | ParseException  | SipException e) {
//			logger.error("[命令发送失败] 停止语音: {}", e.getMessage());
//			throw new ControllerException(ErrorCode.ERROR100.getCode(), "命令发送失败: " +  e.getMessage());
//		}
        playService.stopAudioBroadcast(deviceId, channelId);
    }

    @Operation(summary = "获取所有的ssrc", security = @SecurityRequirement(name = JwtUtils.HEADER))
    @GetMapping("/ssrc")
    public JSONObject getSSRC() {
        if (logger.isDebugEnabled()) {
            logger.debug("获取所有的ssrc");
        }
        JSONArray objects = new JSONArray();
        List<SsrcTransaction> allSsrc = streamSession.getAllSsrc();
        for (SsrcTransaction transaction : allSsrc) {
            JSONObject jsonObject = new JSONObject();
            jsonObject.put("deviceId", transaction.getDeviceId());
            jsonObject.put("channelId", transaction.getChannelId());
            jsonObject.put("ssrc", transaction.getSsrc());
            jsonObject.put("streamId", transaction.getStream());
            objects.add(jsonObject);
        }

        JSONObject jsonObject = new JSONObject();
        jsonObject.put("data", objects);
        jsonObject.put("count", objects.size());
        return jsonObject;
    }

    @Operation(summary = "获取截图", security = @SecurityRequirement(name = JwtUtils.HEADER))
    @Parameter(name = "deviceId", description = "设备国标编号", required = true)
    @Parameter(name = "channelId", description = "通道国标编号", required = true)
    @Parameter(name = "isSubStream", description = "是否子码流（true-子码流，false-主码流），默认为false", required = true)
    @GetMapping("/snap")
    public DeferredResult<String> getSnap(String deviceId, String channelId, boolean isSubStream) {
        if (logger.isDebugEnabled()) {
            logger.debug("获取截图: {}/{}", deviceId, channelId);
        }

        DeferredResult<String> result = new DeferredResult<>(3 * 1000L);
        String key = DeferredResultHolder.CALLBACK_CMD_SNAP + deviceId;
        String uuid = UUID.randomUUID().toString();
        resultHolder.put(key, uuid, result);

        RequestMessage message = new RequestMessage();
        message.setKey(key);
        message.setId(uuid);

        String fileName = deviceId + "_" + channelId + "_" + DateUtil.getNowForUrl() + ".jpg";
        playService.getSnap(deviceId, channelId, fileName, (code, msg, data) -> {
            if (code == InviteErrorCode.SUCCESS.getCode()) {
                message.setData(data);
            } else {
                message.setData(WVPResult.fail(code, msg));
            }
            resultHolder.invokeResult(message);
        });
        return result;
    }

}