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.media.zlm.ZLMRESTfulUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
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;

@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;

	@GetMapping("/playback/{deviceId}/{channelId}")
	public 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));
		}
		
		if (StringUtils.isEmpty(deviceId) || StringUtils.isEmpty(channelId)) {
			String log = String.format("设备回放 API调用失败，deviceId：%s ，channelId：%s",deviceId, channelId);
			logger.warn(log);
			return new ResponseEntity<String>(log,HttpStatus.BAD_REQUEST);
		}

		Device device = storager.queryVideoDevice(deviceId);
		StreamInfo streamInfo = storager.queryPlaybackByDevice(deviceId, channelId);

		if (streamInfo != null) {
			cmder.streamByeCmd(streamInfo.getSsrc());
		}

//		}else {
//			String streamId = String.format("%08x", Integer.parseInt(streamInfo.getSsrc())).toUpperCase();
//			JSONObject rtpInfo = zlmresTfulUtils.getRtpInfo(streamId);
//			if (rtpInfo.getBoolean("exist")) {
//				return new ResponseEntity<String>(JSON.toJSONString(streamInfo),HttpStatus.OK);
//			}else {
//				storager.stopPlayback(streamInfo);
//				streamInfo = cmder.playbackStreamCmd(device, channelId, startTime, endTime);
//			}
//		}
		streamInfo = cmder.playbackStreamCmd(device, channelId, startTime, endTime);

		String streamId = String.format("%08x", Integer.parseInt(streamInfo.getSsrc())).toUpperCase();
		
		if (logger.isDebugEnabled()) {
			logger.debug("设备回放 API调用，ssrc：" + streamInfo.getSsrc() + ",ZLMedia streamId:" + streamId);
		}
		// 等待推流, TODO 默认超时15s
		boolean lockFlag = true;
		boolean rtpPushed = false;
		long lockStartTime = System.currentTimeMillis();
		JSONObject rtpInfo = null;

		while (lockFlag) {
			try {
				if (System.currentTimeMillis() - lockStartTime > 75 * 1000) {
					storager.stopPlayback(streamInfo);
					logger.info("播放等待超时");
					return new ResponseEntity<String>("timeout",HttpStatus.OK);
				}else {
					streamInfo = storager.queryPlaybackByDevice(deviceId, channelId);
					if (!rtpPushed) {
						logger.info("查询RTP推流信息...");
						rtpInfo = zlmresTfulUtils.getRtpInfo(streamId);
					}
					if (rtpInfo != null && rtpInfo.getBoolean("exist") && streamInfo != null && streamInfo.getFlv() != null){
						logger.info("查询流编码信息："+streamInfo.getFlv());
						rtpPushed = true;
						Thread.sleep(2000);
						JSONObject mediaInfo = zlmresTfulUtils.getMediaInfo("rtp", "rtmp", streamId);
						if (mediaInfo.getInteger("code") == 0 && mediaInfo.getBoolean("online")) {
							lockFlag = false;
							logger.info("流编码信息已获取");
							JSONArray tracks = mediaInfo.getJSONArray("tracks");
							streamInfo.setTracks(tracks);
							storager.startPlayback(streamInfo);
						}else {
							logger.info("流编码信息未获取，2秒后重试...");
						}
					}else {
						Thread.sleep(2000);
						continue;
					}
				}
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
		if(streamInfo!=null) {
			return new ResponseEntity<String>(JSON.toJSONString(streamInfo),HttpStatus.OK);
		} else {
			logger.warn("设备回放API调用失败！");
			return new ResponseEntity<String>(HttpStatus.INTERNAL_SERVER_ERROR);
		}
	}
	
	@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);
		}
	}
}
