package com.ard.sample.component.websocket.handler;

import com.ard.common.core.redis.RedisConst;
import com.ard.common.core.redis.RedisOpsUtils;
import com.ard.sample.common.model.ResponseResult;
import com.ard.sample.component.websocket.enums.MessageType;
import com.ard.sample.manage.model.dto.*;
import com.ard.sample.manage.service.IDeviceService;
import com.ard.sample.manage.service.ILiveStreamService;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Slf4j
@Component
public class LiveStreamHandler {
    @Autowired
    protected ObjectMapper _objectMapper;
    @Autowired
    private IDeviceService _deviceService;
    @Autowired
    private ILiveStreamService _liveStreamService;
    @Autowired
    private DockWebSocketHandler _dockWebSocketHandler;

    /**
     * 开启直播
     */
    public void StartLiveStreaming(String sn) {
        //调用开始直播
        ResponseResult rlive = null;
        String resultLive = "";
        try {
            // 获取直播参数
            LiveTypeDTO param = getLiveParam(sn);
            // 如果存在直播则读取直播地址返回
            if (RedisOpsUtils.checkExist(RedisConst.WEBSOCKET_VIDEO_ADDRESS_PREFIX + sn)) {
                resultLive = String.valueOf(RedisOpsUtils.get(RedisConst.WEBSOCKET_VIDEO_ADDRESS_PREFIX + sn));
            } else {
                log.info("SN: {}-redis中未找到相机的播放地址信息！停止直播后再开启直播", sn);
                StopLiveStreaming(sn);
                // 如果不存在直播，则开始直播，并返回直播地址
                rlive = _liveStreamService.liveStart(param);
                if (rlive.getCode() == 0) {
                    // 直播成功后，在redis中存一个标记，将videoid保留，留给停止直播使用
                    log.info("SN: {}-开启直播成功！", sn);
                    rlive.setGateway(sn);
                    rlive.setType(MessageType.LIVESTREAM.getType());
                    resultLive = _objectMapper.writeValueAsString(rlive);
                    RedisOpsUtils.set(RedisConst.WEBSOCKET_VIDEO_ADDRESS_PREFIX + sn, resultLive);
                }
            }
        } catch (Exception e) {
            log.info("SN: {}-开启直播失败！原因：{}", sn, e.getMessage());
            String jsonString = getResult(sn, "开启直播失败！原因：" + e.getMessage());
            _dockWebSocketHandler.sendMessageToSubscribers(sn, MessageType.LIVESTREAM.getType(), jsonString);
            e.printStackTrace();
        }

        _dockWebSocketHandler.sendMessageToSubscribers(sn, MessageType.LIVESTREAM.getType(), resultLive);
        log.info("SN: {}-直播地址：{}", sn, resultLive);
    }

    public void StopLiveStreaming(String sn) {
        ResponseResult rlive = null;
//        String resultLive = "";
        try {
            // 获取直播参数
            LiveTypeDTO param = getLiveParam(sn);
            // 停止直播逻辑
            rlive = _liveStreamService.liveStop(param.getVideoId());
//            rlive.setGateway(sn);
//            rlive.setType(MessageType.LIVESTREAM.getType());
//            resultLive = _objectMapper.writeValueAsString(rlive);
            RedisOpsUtils.del(RedisConst.WEBSOCKET_VIDEO_ADDRESS_PREFIX + sn);
        } catch (Exception e) {
            e.printStackTrace();
        }
        //_dockWebSocketHandler.sendMessageToSubscribers(sn, MessageType.LIVESTREAM.getType(), resultLive);
    }

    public String getResult(String sn, String msg) {
        Map<String, String> result = new HashMap<>();
        result.put("gateway", sn);
        result.put("code", "1");
        result.put("message", msg);
        result.put("data", null);
        result.put("type", MessageType.LIVESTREAM.getType());
        // 将Map转换为JSON字符串
        String jsonString = "";
        try {
            jsonString = _objectMapper.writeValueAsString(result);
        } catch (Exception e) {
            e.printStackTrace();
        }

        return jsonString;
    }

    /**
     * 获取直播参数
     */
    public LiveTypeDTO getLiveParam(String sn) throws Exception {
        LiveTypeDTO param = new LiveTypeDTO();
        // 检查设备是否在线
        if (!_deviceService.checkDeviceOnline(sn)) {
            log.info("SN: {}-设备不在线，请检查网络连接！", sn);
            // 抛弃出异常，给调用者处理
            throw new Exception("设备不在线，请检查网络连接！");
        }
        // 读取直播能力拼接参数
        List<CapacityDeviceDTO> devicesList = _liveStreamService.getLiveCapacity();
        if (devicesList == null || devicesList.isEmpty()) {
            log.info("SN: {}-未获得设备直播能力！", sn);
            // 抛弃出异常，给调用者处理
            throw new Exception("未获得设备直播能力！");
        }
        for (CapacityDeviceDTO device : devicesList) {
            if (!device.getSn().equals(sn)) {
                continue;
            }
            List<CapacityCameraDTO> camerasList = device.getCamerasList();
            for (CapacityCameraDTO camera : camerasList) {
                if (camera.getName() == null || camera.getName().isEmpty()) {
                    continue;
                }
                String videoid = device.getSn() + "/" + camera.getIndex();
                List<CapacityVideoDTO> videosList = camera.getVideosList();
                for (CapacityVideoDTO video : videosList) {
                    videoid = videoid + "/" + video.getIndex();
                    param.setUrlType(1);
                    param.setUrl("");
                    param.setVideoId(videoid);
                    param.setVideoQuality(1);
                    param.setVideoType(video.getSwitchVideoTypes().get(0));
                }
            }
        }
        return param;
    }
}