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package com.genersoft.iot.vmp.vmanager.playback;
 
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.genersoft.iot.vmp.common.StreamInfo;
import com.genersoft.iot.vmp.gb28181.transmit.callback.DeferredResultHolder;
import com.genersoft.iot.vmp.gb28181.transmit.callback.RequestMessage;
import com.genersoft.iot.vmp.media.zlm.ZLMRESTfulUtils;
import com.genersoft.iot.vmp.vmanager.service.IPlayService;
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.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
 
import com.alibaba.fastjson.JSONObject;
import com.genersoft.iot.vmp.gb28181.bean.Device;
import com.genersoft.iot.vmp.gb28181.transmit.cmd.impl.SIPCommander;
import com.genersoft.iot.vmp.storager.IVideoManagerStorager;
import org.springframework.web.context.request.async.DeferredResult;
 
import javax.sip.message.Response;
import java.util.UUID;
 
@CrossOrigin
@RestController
@RequestMapping("/api")
public class PlaybackController {
 
    private final static Logger logger = LoggerFactory.getLogger(PlaybackController.class);
 
    @Autowired
    private SIPCommander cmder;
 
    @Autowired
    private IVideoManagerStorager storager;
 
    @Autowired
    private ZLMRESTfulUtils zlmresTfulUtils;
 
    @Autowired
    private IPlayService playService;
 
    @Autowired
    private DeferredResultHolder resultHolder;
 
    @GetMapping("/playback/{deviceId}/{channelId}")
    public DeferredResult<ResponseEntity<String>> play(@PathVariable String deviceId, @PathVariable String channelId, String startTime,
                                                       String endTime) {
 
        if (logger.isDebugEnabled()) {
            logger.debug(String.format("设备回放 API调用,deviceId:%s ,channelId:%s", deviceId, channelId));
        }
        UUID uuid = UUID.randomUUID();
        DeferredResult<ResponseEntity<String>> result = new DeferredResult<ResponseEntity<String>>();
        // 超时处理
        result.onTimeout(()->{
            logger.warn(String.format("设备回放超时,deviceId:%s ,channelId:%s", deviceId, channelId));
            RequestMessage msg = new RequestMessage();
            msg.setId(DeferredResultHolder.CALLBACK_CMD_PlAY + uuid);
            msg.setData("Timeout");
            resultHolder.invokeResult(msg);
        });
        Device device = storager.queryVideoDevice(deviceId);
        StreamInfo streamInfo = storager.queryPlaybackByDevice(deviceId, channelId);
        if (streamInfo != null) {
            // 停止之前的回放
            cmder.streamByeCmd(streamInfo.getStreamId());
        }
        resultHolder.put(DeferredResultHolder.CALLBACK_CMD_PlAY + uuid, result);
        cmder.playbackStreamCmd(device, channelId, startTime, endTime, (JSONObject response) -> {
            logger.info("收到订阅消息: " + response.toJSONString());
            playService.onPublishHandlerForPlayBack(response, deviceId, channelId, uuid.toString());
        }, event -> {
            Response response = event.getResponse();
            RequestMessage msg = new RequestMessage();
            msg.setId(DeferredResultHolder.CALLBACK_CMD_PlAY + uuid);
            msg.setData(String.format("回放失败, 错误码: %s, %s", response.getStatusCode(), response.getReasonPhrase()));
            resultHolder.invokeResult(msg);
        });
 
        return result;
    }
 
    @RequestMapping("/playback/{ssrc}/stop")
    public ResponseEntity<String> playStop(@PathVariable String ssrc) {
 
        cmder.streamByeCmd(ssrc);
 
        if (logger.isDebugEnabled()) {
            logger.debug(String.format("设备录像回放停止 API调用,ssrc:%s", ssrc));
        }
 
        if (ssrc != null) {
            JSONObject json = new JSONObject();
            json.put("ssrc", ssrc);
            return new ResponseEntity<String>(json.toString(), HttpStatus.OK);
        } else {
            logger.warn("设备录像回放停止API调用失败!");
            return new ResponseEntity<String>(HttpStatus.INTERNAL_SERVER_ERROR);
        }
    }
}