<?php


class RcgjfwXqIndexAction extends Action {
			

	public  function index(  ){
		if (!C('rcgjfw.人车标签_允许的最大时间差')){
			echo '常量【人车标签_允许的最大时间差】未定义'.PHP_EOL;
			return;
		}
		if (!C('rcgjfw.被盗告警_间隔时间')){
			echo '常量【被盗告警_间隔时间】未定义'.PHP_EOL;
			return;
		}
		if (!C('rcgjfw.车辆标签_rssi阀值')){
			echo '常量【车辆标签_rssi阀值】未定义'.PHP_EOL;
			return;
		}
		if (!C('rcgjfw.车主标签_rssi阀值')){
			echo '常量【车辆标签_rssi阀值】未定义'.PHP_EOL;
			return;
		}
		Vendor('Workerman352.Autoloader');
		$tcp_worker = new Workerman\Worker("tcp://0.0.0.0:20160");
		$tcp_worker->count = 1;
		$tcp_worker->onWorkerStart = function($worker){
			
		};
		$tcp_worker->onConnect = function($connection){
			$this->onConnect($connection);
		};
		$tcp_worker->onMessage = function($connection,$data){
			$this->onMessage($connection,$data);
		};
		$tcp_worker->onClose = function($connection){
			$this->onClose($connection);
		};
		//实例化信号处理类
		$this->rfid_proto = new Rlgs\Proto\RfidStation2();
		
		$this->rchy_alarm_list = Redis("rchy_alarm_list","queue");
		$this->redis_vsignal = Redis("rchy_vsignal_{no}","zset")->prefix('rchy_vsignal_');
		//$this->cache = \Rchy\Cache\RedisCache::getInstance();
		
		Workerman\Worker::runAll();//保持运行
		
	}
	
 
	private  function onMessage( $connection, $data ){
		$connection->m_packet .= $data;
	}
	
 
	private  function onConnect( $connection ){
		echo  PHP_EOL . $connection->id . ' connected'. PHP_EOL;
	}
	
 
	private  function onClose( $connection ){
		//记录数据包文本
		$packet_text = $this->rfid_proto->tcp_hex2str($connection->m_packet,true) ;
		//$this->rfid_proto->tcp_log($connection->id . ' closed ' . $packet_text);
		//echo 'packet_text => '.$packet_text.PHP_EOL;
		//解析消息体
		$packet = $this->rfid_proto->tcp_str2bin($packet_text);
		$result = $this->rfid_proto->tcp_unpack_msg($packet);
		if(! $result['Success'] ){
			echo 'unpack packet failed'.PHP_EOL;
			$this->rfid_proto->decode_error_log('unpack_fail','unpack packet failed ,result : '.json_encode($result));
			return;
		}
		//echo 'decode_data => '.json_encode($result).PHP_EOL;
		//记录基站数据包
		//$this->rfid_proto->decode_packet_log($result['StationCode'],$result['StationCode'].' => '.$packet_text);
		if (!$result['StationCode']){
			echo 'StationCode is empty!'.PHP_EOL;
			$this->rfid_proto->decode_error_log('unpack_fail','StationCode is empty! ');
			return false;
		}
		
		if (!$result['VehicleList']){
			echo 'VehicleList is empty!'.PHP_EOL;
			return ;
		}
		
		//检查是否有效基站
		$station_info = \Rchy\Cache\RedisCache::getStationInfo($result['StationCode']);
		if(!$station_info){
			$this->rfid_proto->decode_error_log('unpack_fail','getStationInfo failed ,StationCode : '.$result['StationCode']);
			return false;
		}
		
		//更新车主标签时间
		echo '======= updateRfidTime start ======='.$connection->id.PHP_EOL;
		$this->updateRfidTime($result);
		echo '======= updateRfidTime over ======='.$connection->id.PHP_EOL;
		//添加报警
		echo '======= addAlarm start ======='.$connection->id.PHP_EOL;
		$this->addAlarm($result);
		echo '======= addAlarm over ======='.$connection->id.PHP_EOL;
		/*
		//轨迹包redis主库
		$redis_raw_packet = Redis("fdqu_raw_packet","queue");
		$redis_raw_packet->push($packet_text);
		
		//数据解包
		$result = $this->unpackMsg($packet_text);
		
		//生成车辆轨迹日志
		$this->addTcpLog($result);
		*/
	}
	
 
	private  function addTcpLog( $result ){
		//一个基站一个日志文件
		$this->rfid_proto->station_route_log('tcp',$result);
		//一个车辆一个日志文件
		$this->rfid_proto->vehicle_route_log('tcp',$result);
		
	}
	
 
	private  function unpackMsg( $packet_text ){
		$packet = $this->rfid_proto->tcp_str2bin($packet_text);
		if(!$packet){
			echo 'parse packet failed.'.PHP_EOL;
			$this->rfid_proto->tcp_error_log('parse_fail','parse packet failed ,packet_text : '.$packet_text);
			return false;
		}
		$result = $this->rfid_proto->tcp_unpack_msg($packet);
		if(! $result['Success'] ){
			echo 'unpack fail: ' . $result['Message'].PHP_EOL;
			$this->rfid_proto->tcp_error_log('unpack_fail',$result);
			return false;
		}
		return $result;
	}
	
 
	private  function addAlarm( $result ){
		//获取当前所有车主rfid的rssi数据
		$chezhu_rfids = array();
		foreach ($result['VehicleList'] as $key => $row){
			$chezhu_info = \Rchy\Cache\RedisCache::getCheZhuInfo($row['VehicleNumber']);
			if(!$chezhu_info){
				continue;
			}
			$chezhu_rfids[$row['VehicleNumber']]['Rssi'] = $row['rssi'];
			$chezhu_rfids[$row['VehicleNumber']]['SignalCount'] = $row['SignalCount'];
		}
		//var_dump($result['VehicleList']);
		foreach ($result['VehicleList'] as $key => $row){
			$row['StationCode'] = $result['StationCode'];
			if (!$row['VehicleNumber']){
				echo 'VehicleNumber empty!'.PHP_EOL;
				continue;
			}
		
			//获取车辆信息
			$vehicle_info = \Rchy\Cache\RedisCache::getVehicleInfo($row['VehicleNumber']);
			//车辆不存在跳过
			if (!$vehicle_info){
				//echo 'vehicle not existed, vehilce_number = '.$row['VehicleNumber'].', rssi = '.$row['rssi'].PHP_EOL;
				continue;
			}
			//未绑定车主rfid跳过
			if (!$vehicle_info['CheZhuRfid']){
				echo 'vehicle not kaihu, vehilce_number: '.$row['VehicleNumber'].', rssi = '.$row['rssi'].PHP_EOL;
				continue;
			}
			echo 'VehicleNumber: '.$row['VehicleNumber'].',rssi = '.$row['rssi'].PHP_EOL;
		
		
			//车辆标签
			$vehicle_no = strtolower($row['VehicleNumber']);
			//末次信号(改用本地缓存了)
			//$last_signal_info = $this->redis_vsignal->table($vehicle_no)->max();
		
			//获取最近一段时间内所有rssi，求均值
			$avgRssi = $this->getAvgRssi($row);
			if($avgRssi === false){
				echo 'getAvgRssi failed! VehicleNumber = '.$row['VehicleNumber'].PHP_EOL;
				continue;
			}
			//车辆rssi信号弱的，过滤掉，防止收到车信号的时候，没有收到车主信号，从而误报
			if ($avgRssi > C('rcgjfw.车辆标签_rssi阀值')){
				echo 'avgRssi > '.C('rcgjfw.车辆标签_rssi阀值').', avgRssi = '.$avgRssi.', VehicleNumber = '.$row['VehicleNumber'].PHP_EOL;
				continue;
			}
		
			//有效信号加入到 rchy_vsignal_{no} 表
			$signal = array(
				'StationCode' => $row['StationCode'],
				'Rssi' => $row['rssi'],
				'Timestamp' => $row['Timestamp']
			);
		
			//获取最近一次的信号信息
			$last_signal_info = S('last_signal_info'.$row['VehicleNumber']);
			//更新最近一次的信号信息
			S('last_signal_info'.$row['VehicleNumber'], $signal, 24*60*60);
		
			$alarm_info = array();
			$alarm_info['VehicleNumber'] = $row['VehicleNumber'];
			$alarm_info['AlarmTime'] = time();
			$alarm_info['OnlineTime'] = $row['OnlineTime'];
			$alarm_info['VehicleRssi'] = $row['rssi'];
			$alarm_info['VehicleSignalCount'] = $row['SignalCount'];
			$alarm_info['CheZhuRssi'] = $chezhu_rfids[$vehicle_info['CheZhuRfid']]['Rssi'];//车主或者授权车主信号强度，这里还需要完善
			$alarm_info['CheZhuSignalCount'] = $chezhu_rfids[$vehicle_info['CheZhuRfid']]['SignalCount'];
			$alarm_info['StationCode'] = $row['StationCode'];
			//检查车辆经过时，在限定的时间内，是否有接收到任一授权标签信号
			$is_stolen = $this->checkVehicleStatus($vehicle_info['CheZhuRfid'], $row);
			$cur_time = time();
			//检查是否被盗报警
			if ( $is_stolen ){
				$alarm_info['AlarmType'] = \Rchy\Enum\AlarmType::STOLEN;
				//上次被盗告警时间
				$latest_stolen_alarm_time = S('latest_stolen_alarm_time_'.$row['VehicleNumber']);
				//避免频繁告警检测
				if ($latest_stolen_alarm_time && $cur_time - $latest_stolen_alarm_time <= C('rcgjfw.被盗告警_间隔时间')){	
					echo '车辆'.$row['VehicleNumber'].'刚被盗告警过，跳过告警! latest_stolen_alarm_time = '.$latest_stolen_alarm_time.', cur_time = '.$cur_time.PHP_EOL;
					return ;
				}
				echo 'VehicleNumber：'.$row['VehicleNumber'].', 告警类型: 被盗告警'.PHP_EOL;
		
				//更新本次被盗告警时间
				S('latest_stolen_alarm_time_'.$row['VehicleNumber'], $cur_time);
		
			}else{
				
				//上次告警时间
				$latest_pass_alarm_time = S('latest_pass_alarm_time_'.$row['VehicleNumber']);
				//避免频繁告警检测
				if ($latest_pass_alarm_time && $cur_time - $latest_pass_alarm_time <= C('rcgjfw.过车告警_间隔时间')){	
					echo '车辆'.$row['VehicleNumber'].'刚过车告警过，跳过! 已过车告警'.$pass_alarm_count.'次, latest_pass_alarm_time = '.$latest_pass_alarm_time.', cur_time = '.$cur_time.PHP_EOL;
					return ;
				}
				$alarm_info['AlarmType'] = \Rchy\Enum\AlarmType::PASS;
				echo 'pass_alarm_count = '.$pass_alarm_count.', last_chezhu_signal_time = '.$last_signal_info['Timestamp'].', now = '.$row['Timestamp']. PHP_EOL;
				echo 'VehicleNumber：'.$row['VehicleNumber'].', 告警类型: 过车告警'.PHP_EOL;
				//记录本次过车告警时间
				S('latest_pass_alarm_time_'.$row['VehicleNumber'], $cur_time);
			}
			$this->rchy_alarm_list->push(json_encode($alarm_info));
			echo '添加告警成功, VehicleNumber：'.$row['VehicleNumber'].', AlarmType: '.$alarm_info['AlarmType'].PHP_EOL;
			//echo 'alarm_info: '.json_encode($alarm_info).PHP_EOL;
		
		
		}
	}
	
 
	private  function updateRfidTime( $result ){
		
		foreach($result['VehicleList'] as $key => $row){
			$row['StationCode'] = $result['StationCode'];
			if(!$row['VehicleNumber']){
				//echo 'VehicleNumber not existed, VehicleNumber: '.$row['VehicleNumber'].PHP_EOL;
			   continue;
			}
			//检查车主标签是否有效,无效跳过，有效的更新上报信息
			$vehicle_info = \Rchy\Cache\RedisCache::getCheZhuInfo($row['VehicleNumber']);
			if(!$vehicle_info){
				continue;
			}
			echo 'CheZhuRfid = '.$row['VehicleNumber'].', rssi = '.$row['rssi'].', time:'.date('Y-m-d H:i:s',$row['Timestamp']).PHP_EOL;
			//如果基站时间不准确，用服务器时间
			if($row['Timestamp'] < time()-3600){
				$row['Timestamp'] = time();
			}
			//获取最近一段时间内所有rssi，求均值
			$avgRssi = $this->getAvgRssi($row);
			if($avgRssi === false){
				echo 'getAvgRssi failed! CheZhuRfid = '.$row['VehicleNumber'].PHP_EOL;
				continue;
			}
			//检查车主标签rssi,过滤掉弱信号
			if ($avgRssi > C('rcgjfw.车主标签_rssi阀值')){
				echo 'avgRssi > '.C('rcgjfw.车主标签_rssi阀值').', avgRssi = '.$avgRssi.', CheZhuRfid = '.$row['VehicleNumber'].PHP_EOL;
				continue;
			}
			echo 'avgRssi = '.$avgRssi.', CheZhuRfid = '.$row['VehicleNumber'].PHP_EOL;
			
			$info = array(
				'Timestamp' => $row['Timestamp'],
				'StationCode' => $row['StationCode'],
				'Rssi' => $row['rssi']
			);
			//更新车主RFID上报信息
			 S('last_chezhu_rfid_'.$row['VehicleNumber'], $info, 60*60*24);
			//echo 'last_chezhu_rfid_'.$row['VehicleNumber'] .PHP_EOL;
			//var_dump(S('last_chezhu_rfid_'.$row['VehicleNumber']));
			
			//echo '更新车主标签上报信息成功，CheZhuRfid: '.$row['VehicleNumber'].', 上报时间：'.date('Y-m-d H:i:s',$row['Timestamp']).', rssi: '.$row['rssi'].PHP_EOL;
			
		}
	}
	
 
	private  function checkVehicleStatus( $chezhu_rfid, $row ){
		if(!$chezhu_rfid){
			echo 'checkVehicleStatus failed, chezhu_rfid is empty!'.PHP_EOL;
			return false;
		}
		if(!$row){
			echo 'checkVehicleStatus failed, row is empty!'.PHP_EOL;
			return false;
		}
		
		//获取车辆已授权车主标签
		$all_rfids = \Rchy\Cache\RedisCache::getVehicleAuthors($row['VehicleNumber']);
		if(!$all_rfids){
			$all_rfids = array();
		}
		//加入车主标签
		if(!in_array($chezhu_rfid,$all_rfids)){
			array_push($all_rfids,$chezhu_rfid);
		}
		
		$is_stolen = true;
		foreach ($all_rfids as $rfid){
			//获取授权车主标签上报信息
			$last_rfid_info = S('last_chezhu_rfid_'.$rfid);
			//var_dump($last_rfid_info);
			$last_rfid_time = $last_rfid_info['Timestamp'];
			$rfid_pass_station = $last_rfid_info['StationCode'];
			echo 'chezhu_rfid = '.$rfid.', now = '.$row['Timestamp'].', last_rfid_time = '.$last_rfid_time.', rfid_pass_station = '. $rfid_pass_station . PHP_EOL;
			//车辆和授权车主同时出现在同一个小区门口，则认为是过车告警
			if ( $last_rfid_time && abs($row['Timestamp']-$last_rfid_time) < C('rcgjfw.人车标签_允许的最大时间差') && $rfid_pass_station == $row['StationCode']){
				$is_stolen = false;
				break;
			}
		}
		echo 'all_rfids:'.PHP_EOL;
		var_dump($all_rfids);
		
		return $is_stolen;
	}
	
 
	private  function checkVehicleDirection( $vehicle_no, $now ){
		//开发中。。。
		return false;
		if(!$vehicle_no){
			echo 'checkVehicleDirection failed, vehicle_no is empty!'.PHP_EOL;
			return false;
		}
		if(!$now){
			echo 'checkVehicleDirection failed, now is empty!'.PHP_EOL;
			return false;
		}
		//获取最近一段时间内的信号
		$cond = array($now-60,$now);
		$signal_list = $this->redis_vsignal->table($vehicle_no)->where($cond)->select();
		//查询结果默认是按时间升序，这里翻转一下
		$signal_list = array_reverse($signal_list);
		if(!$signal_list){
			echo 'checkVehicleDirection failed，signal_list is empty!'.PHP_EOL;
			return false;
		}
		
		//最后一个信号点所在的基站
		$last_station = $signal_list[0]['StationCode'];
		if(!$last_station){
			echo 'checkVehicleDirection failed，last_station is empty!'.PHP_EOL;
			return false;
		}
		//获取一段时间内同一基站连续的几个信号强度点
		$rssi_list = array();
		foreach($signal_list as $key=>$row){
			$signal = json_decode($key,true);
			if(!$signal){
				echo 'json_decode error'.PHP_EOL;
				return false;
			}
			if($last_station != $signal['StationCode']){
				echo 'is not the last_station rssi,stop push! last_station = '.$last_station.', cur_station = '.$signal['StationCode'].PHP_EOL;
				break;
			}
			$rssi_list[] = $signal['rssi'];
		}
		
		if( count($rssi_list)<3 ){
			echo 'checkVehicleDirection failed，count($rssi_list)<3 !! count($rssi_list) = '.count($rssi_list).PHP_EOL;
			return false;
		}
		
		//<信号一直递增或者一直递减的，车辆方向暂时不好判断>
		//判断车辆rssi信号强度是否递减(此时，时间是降序)
		$is_rssi_decrease = $this->isRssiDecrease($rssi_list, count($rssi_list));
		if($is_rssi_decrease){
			echo '检测到车辆rssi信号强度递增,车辆正在靠近基站！StationCode = '.$last_station.PHP_EOL;
			return false;
		}
		//如果rssi先逐渐增强，后逐渐减弱，且峰值右侧第一个信号大于峰值左侧第一个信号，则认为是进入小区
		
		//如果rssi先逐渐增强，后逐渐减弱，且峰值右侧第一个信号小于峰值左侧第一个信号，则认为是走出小区
		
		echo '判断不出车辆运动方向！VehicleNumber = '. $vehicle_no .PHP_EOL;
		return false;
	}
	
 
	private  function isRssiDecrease( $arr, $len ){
		if ($len == 1)
		    return true;
		
		return ($arr[$len - 2] >= $arr[$len - 1]) && $this->isRssiDecrease($arr, $len-1);
	}
	
 
	private  function isRssiDrab( $arr, $len ){
		if(!$arr){
			echo 'isRssiDrab failed, arr is empty!!'.PHP_EOL;
			return false;
		}
		
		if(!$len){
			echo 'isRssiDrab failed, len is empty!!'.PHP_EOL;
			return false;
		}
		
		if($this->isRssiIncrease($arr, $len)){
			echo 'rssi increase'.PHP_EOL;
			return true;
		}
		
		if($this->isRssiDecrease($arr, $len)){
			echo 'rssi decrease'.PHP_EOL;
			return true;
		}
		
		echo 'rssi is not drab '.PHP_EOL;
		return false;
	}
	
 
	private  function isRssiIncrease( $arr, $len ){
		if ($len == 1)
		    return true;
		
		return ($arr[$len - 2] <= $arr[$len - 1]) && $this->isRssiIncrease($arr, $len-1);
	}
	
 
	private  function getAvgRssi( $data ){
		$rfid = $data['VehicleNumber'];
		if(!$rfid){
			echo 'getAvgRssi failed ,VehicleNumber not existed!'.PHP_EOL;
			return false;
		}
		$station_code = $data['StationCode'];
		if(!$station_code){
			echo 'getAvgRssi failed ,StationCode not existed!'.PHP_EOL;
			return false;
		}
		
		$key = $station_code.'_'.$rfid;
		//添加新车辆轨迹点
		$route_point = array('Rfid'=>$rfid,'Time'=>$data['Timestamp'],'Rssi'=>$data['rssi']);
		$signal_data = array(json_encode($route_point) => $data['Timestamp']);
		$this->redis_vsignal->table($key)->add($signal_data);
		//查询时间窗内，所有rssi
		$interval = C('rcgjfw.信号均值_采集时间窗');
		if(!$interval){
			$interval = 4;
		}
		$start = $data['Timestamp']-$interval;
		$where = array( $start,$data['Timestamp']);
		$list = $this->redis_vsignal->table($key)->where($where)->select();
		
		//计算平均值
		$sum = 0;
		$count = 0;
		$info = array();
		foreach($list as $signal => $time){
			$signal = json_decode($signal,true);
			$sum += $signal['Rssi'];
			$count++;
			$info[$time] = $signal['Rssi'];
		}
		echo 'key:'.$key.', rssi_pool:'.json_encode($info).PHP_EOL;
		
		if(!$count){
			echo 'getAvgRssi failed ,rssi_pool empty!'.PHP_EOL;
			return false;
		}
		$avgRssi = round($sum/$count);
		echo 'rfid: '.$rfid.', station_code: '.$station_code.', avgRssi = '.$avgRssi.PHP_EOL;
		return $avgRssi;
	}
	

}