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

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.genersoft.iot.vmp.common.StreamInfo;
import com.genersoft.iot.vmp.conf.MediaServerConfig;
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.beans.factory.annotation.Value;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
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 PlayController {

	private final static Logger logger = LoggerFactory.getLogger(PlayController.class);

	@Autowired
	private SIPCommander cmder;

	@Autowired
	private IVideoManagerStorager storager;

	@Autowired
	private ZLMRESTfulUtils zlmresTfulUtils;

	@Value("${media.closeWaitRTPInfo}")
	private boolean closeWaitRTPInfo;

	@GetMapping("/play/{deviceId}/{channelId}")
	public ResponseEntity<String> play(@PathVariable String deviceId, @PathVariable String channelId,
	Integer getEncoding) {

		if (getEncoding == null) getEncoding = 0;
		getEncoding = closeWaitRTPInfo ?  0 : getEncoding;
		Device device = storager.queryVideoDevice(deviceId);
		StreamInfo streamInfo = storager.queryPlayByDevice(deviceId, channelId);

		if (streamInfo == null) {
			streamInfo = cmder.playStreamCmd(device, channelId);
		} 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.stopPlay(streamInfo);
				streamInfo = cmder.playStreamCmd(device, channelId);
			}
		}
		String streamId = String.format("%08x", Integer.parseInt(streamInfo.getSsrc())).toUpperCase();
		// 等待推流, TODO 默认超时30s
		boolean lockFlag = true;
		boolean rtpPushed = false;
		long startTime = System.currentTimeMillis();
		JSONObject rtpInfo = null;

		if (getEncoding == 1) {
			while (lockFlag) {
				try {
					if (System.currentTimeMillis() - startTime > 60 * 1000) {
						storager.stopPlay(streamInfo);
						logger.info("播放等待超时");
						return new ResponseEntity<String>("timeout", HttpStatus.OK);
					} else {
						streamInfo = storager.queryPlayByDevice(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");
								logger.info(tracks.toJSONString());
								streamInfo.setTracks(tracks);
								storager.startPlay(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();
				}
			}
		} else {
			String flv = storager.getMediaInfo().getWanIp() + ":" + storager.getMediaInfo().getHttpPort() + "/rtp/"
					+ streamId + ".flv";
			streamInfo.setFlv("http://" + flv);
			streamInfo.setWs_flv("ws://" + flv);
			storager.startPlay(streamInfo);
		}

		if (logger.isDebugEnabled()) {
			logger.debug(String.format("设备预览 API调用，deviceId：%s ，channelId：%s", deviceId, channelId));
			logger.debug("设备预览 API调用，ssrc：" + streamInfo.getSsrc() + ",ZLMedia streamId:"
					+ Integer.toHexString(Integer.parseInt(streamInfo.getSsrc())));
		}

		if (streamInfo != null) {
			return new ResponseEntity<String>(JSON.toJSONString(streamInfo), HttpStatus.OK);
		} else {
			logger.warn("设备预览API调用失败！");
			return new ResponseEntity<String>(HttpStatus.INTERNAL_SERVER_ERROR);
		}
	}

	@PostMapping("/play/{ssrc}/stop")
	public ResponseEntity<String> playStop(@PathVariable String ssrc) {

		cmder.streamByeCmd(ssrc);
		StreamInfo streamInfo = storager.queryPlayBySSRC(ssrc);
		if (streamInfo == null)
			return new ResponseEntity<String>("ssrc not found", HttpStatus.OK);
		storager.stopPlay(streamInfo);
		if (logger.isDebugEnabled()) {
			logger.debug(String.format("设备预览停止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("设备预览停止API调用失败！");
			return new ResponseEntity<String>(HttpStatus.INTERNAL_SERVER_ERROR);
		}
	}

	/**
	 * 将不是h264的视频通过ffmpeg 转码为h264 + aac
	 * @param ssrc
	 * @return
	 */
	@PostMapping("/play/{ssrc}/convert")
	public ResponseEntity<String> playConvert(@PathVariable String ssrc) {
		StreamInfo streamInfo = storager.queryPlayBySSRC(ssrc);
		if (streamInfo == null) {
			logger.warn("视频转码API调用失败！, 视频流已经停止!");
			return new ResponseEntity<String>("未找到视频流信息, 视频流可能已经停止", HttpStatus.OK);
		}
		String streamId = String.format("%08x", Integer.parseInt(ssrc)).toUpperCase();
		JSONObject rtpInfo = zlmresTfulUtils.getRtpInfo(streamId);
		if (!rtpInfo.getBoolean("exist")) {
			logger.warn("视频转码API调用失败！, 视频流已停止推流!");
			return new ResponseEntity<String>("推流信息在流媒体中不存在, 视频流可能已停止推流", HttpStatus.OK);
		} else {
			MediaServerConfig mediaInfo = storager.getMediaInfo();
			String dstUrl = String.format("rtmp://%s:%s/convert/%s", "127.0.0.1", mediaInfo.getRtmpPort(),
					streamId );
			JSONObject jsonObject = zlmresTfulUtils.addFFmpegSource(streamInfo.getRtsp(), dstUrl, "1000000");
			System.out.println(jsonObject);
			JSONObject result = new JSONObject();
			if (jsonObject != null && jsonObject.getInteger("code") == 0) {
				   result.put("code", 0);
				JSONObject data = jsonObject.getJSONObject("data");
				if (data != null) {
				   result.put("key", data.getString("key"));
					result.put("rtmp", dstUrl);
					result.put("flv", String.format("http://%s:%s/convert/%s.flv", mediaInfo.getWanIp(), mediaInfo.getHttpPort(), streamId));
					result.put("ws_flv", String.format("ws://%s:%s/convert/%s.flv", mediaInfo.getWanIp(), mediaInfo.getHttpPort(), streamId));
				}
			}else {
				result.put("code", 1);
				result.put("msg", "cover fail");
			}
			return new ResponseEntity<String>( result.toJSONString(), HttpStatus.OK);
		}
	}

	/**
	 * 结束转码
	 * @param key
	 * @return
	 */
	@PostMapping("/play/convert/stop/{key}")
	public ResponseEntity<String> playConvertStop(@PathVariable String key) {

		JSONObject jsonObject = zlmresTfulUtils.delFFmpegSource(key);
		System.out.println(jsonObject);
		JSONObject result = new JSONObject();
		if (jsonObject != null && jsonObject.getInteger("code") == 0) {
			result.put("code", 0);
			JSONObject data = jsonObject.getJSONObject("data");
			if (data != null && data.getBoolean("flag")) {
				result.put("code", "0");
				result.put("msg", "success");
			}else {

			}
		}else {
			result.put("code", 1);
			result.put("msg", "delFFmpegSource fail");
		}
		return new ResponseEntity<String>( result.toJSONString(), HttpStatus.OK);
	}
}