server/his_location.h

#ifndef __INCLUDE_HIS_LOCATION_HPP
#define __INCLUDE_HIS_LOCATION_HPP
#include <complex>
#include <queue>
#include "point.h"
#include "log.h"
#include "tool_time.h"
#include "card_path.h"
#include "db_api/CDBSingletonDefine.h"
//速度
//区域 地图变换
//运动方向
//路径变换
struct location_card
{
	location_card(uint32_t id,uint64_t type,uint32_t objid)
		:m_cardid(id)
		,m_type(type)
		,m_objid(objid)
	{
		init();
	}
	uint32_t    m_cardid;//卡id
	uint16_t	m_type;//卡类型
	uint32_t    m_objid;
	double		m_arg;//运动方向角度值
	int 		m_areaid;//区域
	int 		m_mapid;//地图
	uint64_t	m_timestamp;//入库后的时间
	point		m_p;//入库后的点
    int         m_direct_index;
	struct mini_data
	{
		mini_data(const point &p,uint64_t t)
			:p(p)
			 ,time(t)
		{}
		point p;
		uint64_t time;
	};
	std::queue<mini_data> m_d;
	void init()
	{
		m_areaid=-1;
		m_mapid=-1;
		m_timestamp=0;
		m_p.set(0,0);
		std::queue<mini_data> tmp;
		m_d.swap(tmp);
        m_direct_index=0;
	}
	void init_att(const point &pt,uint64_t time)
	{
		std::queue<mini_data> tmp;
		m_d.swap(tmp);
        m_d.emplace(pt,time);
	}
	void set_invalid()
	{
		m_arg=0x12345678;
	}
	bool is_valid()
	{
		return m_arg!=0x12345678;
	}
	double make_arg(const point &pt,const point &p)
	{
		log_info("his_location arg[%d],(%.2f,%.2f)--->(%.2f,%.2f)---->(%.2f,%.2f)",m_cardid,m_p.x,m_p.y,p.x,p.y,pt.x,pt.y);
		return  std::arg(std::complex<double>(pt.x,pt.y)-std::complex<double>(p.x,p.y));
	}
	void set(const point &pt,uint64_t time)
	{
		m_timestamp=time;
		m_p.set(pt);
        init_att(pt,time);
	}
	bool line_changed(const point &pt)//,int &df)
	{
		if(!is_valid())
		  return false;
        point p;
        if(m_d.empty())p=m_p;  else p=m_d.back().p;

		if(point::eq(p.x,pt.x,0.2) && point::eq(p.y,pt.y,0.2)) return false;
        double dis1=m_p.dist(pt);
        if(dis1<2)return false;
        double dis = p.dist(pt);
		double arg = make_arg(pt,p);
        //查看路径方向是否改变
        bool change_flag=(arg-m_arg > -1e-10 && arg-m_arg<1e-10);
        //change_flag为true，标识没有发生变化
       // if(change_flag)m_direct_index=0;
		log_info("his_location:line_changed:%d,%f,m_arg:%f,%s,%f,%f",m_cardid,arg,m_arg, change_flag?"same":"not same",m_arg-arg,dis);
        if(dis<0.5 && fabs(fabs(arg)+fabs(m_arg)-3.141593)< 0.000005)
            return false;
        //判断10次反向才做下一步动作
       // if(fabs(fabs(arg)+fabs(m_arg)-3.141593)< 0.000005)
       // {
       //     if(++m_direct_index<=10)
       //     {
       //         df=1;return false;
       //     }
       // }
		return !point::eq(arg,m_arg,1e-10);
	}
	bool is_speed_changed(const point& pt,uint64_t time)
	{
		bool flag = false;
		double v=0.0;
        point ps=m_d.back().p;
        if(ps.dist(pt)<0.1)return  flag;
		if(m_d.size()>=4)
		{
			mini_data d1 = m_d.front();
			double dist = d1.p.dist(pt);
			double t = time-d1.time;
			v = dist/t*1000;
			m_d.pop();
		}
		m_d.emplace(pt,time);
		if(v<=0.1)
		  return flag;
		double dist = m_p.dist(pt);
		double t	= time - m_timestamp;
		double avge_speed= dist/t*1000;
		log_info("his_location cardid:%d:v:%.2f,avge_v:%.2f,(%.2f--%.2f)",m_cardid,v,avge_speed,0.7*avge_speed,1.3*avge_speed);
		if(v<(1-0.3)*avge_speed && v>(1+0.3)*avge_speed)
		  flag=true;
		  
		return flag;
	}
	bool time_out(const point &p,uint64_t time)
	{
		if(time-m_timestamp>=30*1000 && m_p.dist(p)>0.1)
			return true;
		return false;
	}
	bool is_area_changed(int new_areaid)
	{
		bool flag =false;
		if(m_areaid != new_areaid)
		{
			m_areaid = new_areaid;
			flag=true;
		}
		return flag;
	}
	bool is_map_changed(int new_mapid)	
	{
		bool flag =false;
		if(m_mapid != new_mapid)
		{
			m_mapid = new_mapid;
			flag=true;
		}
		return flag;
	}
	void push(uint64_t timestamp,const point & p,int32_t areaid,int32_t mapid)
	{
		if(m_p.empty() || m_timestamp==0||m_areaid<0||m_mapid<0)	
		{
		  set(p,timestamp);
		  m_areaid=areaid;m_mapid=mapid;
		  m_d.emplace(p,timestamp);
		  return;
		}
		
		if(!is_valid())
		{
            //if(p==m_p)
		    if(point::eq(p.x,m_p.x,0.2) && point::eq(p.y,m_p.y,0.2))
            {
		        set(p,timestamp);
			    return ;
            }
            auto v=find_path(m_p,p);
            if(v.empty())
		        m_arg=make_arg(p,m_p);
            else
            {
                log_info("his_location:more_abnormal_point....%d,(%.2f,%.2f)---(%.2f,%.2f)",m_cardid,m_p.x,m_p.y,p.x,p.y);
                handle_path(v,timestamp,true);
                set_invalid();
                return;
            }
		    log_info("his_location:%d arg:%f",m_cardid,m_arg);
		    insert();
            return;
		}
		bool flag=false;
		int  iflag=0;
        //判断是否路径发生了变化
        //这里现在又判断，如果反向了也会返回true.但是不运作,依然走下面的逻辑就会有问题
        //比如速度
		flag=handle_message(p,timestamp);
		if(time_out(p,timestamp))
			if(!flag)iflag=1;
		if(is_speed_changed(p,timestamp))
			if(!flag)iflag=2;
		if(is_area_changed(areaid))
			if(!flag)iflag=3;
		if(is_map_changed(mapid))
			if(!flag)iflag=4;
		log_info("his_location cardid:%d:%d",m_cardid,iflag);
		if(iflag)
		{
			update(p,timestamp,iflag);
			//set_invalid();	
            if(iflag>1){
			    set(p,timestamp);
			    insert();
            }
		}
	}
	void insert()
	{
		//std::string tabName=getTabName();
		char nsql[512]={0};
		const char * sql = "replace into his_location (obj_id,card_type_id,ident,begin_time,map_id,area_id,begin_pt,direction)"
		                   "values(%d,%d,%d,'%s',%d,%d,'%.2f,%.2f',%f);";
		snprintf(nsql,512,sql,m_objid,m_type,m_cardid,tool_time::to_str(m_timestamp/1000).c_str(),m_mapid,m_areaid,m_p.x,m_p.y,m_arg);
		log_info("his_location[%d,%lu]:%s",m_cardid,m_timestamp,nsql);
		sDBConnPool.PushAsync(nsql);
	}
	void update(const point &p,uint64_t timestamp,int flag=0)
	{
        static uint64_t last_timestamp=0;
		//std::string tabName=getTabName();
		char nsql[512]={0};
		const char * sql = "update his_location set last_time='%s',speed=%.2f where obj_id=%d and begin_time='%s' and last_time is null;";
		double dist = m_p.dist(p);
		double t	= (timestamp - m_timestamp)/1000;
		double avge_speed= dist/t;
		if(std::isnan(avge_speed)|| std::isinf(avge_speed))avge_speed=0;
        if(last_timestamp != 0) 
        {
		    const char * ss = "update his_location set last_time='%s',speed=%.2f where obj_id=%d and begin_time='%s' and last_time = '%s';";
		    snprintf(nsql,512,ss,tool_time::to_str(timestamp/1000).c_str(),avge_speed,m_objid,tool_time::to_str(m_timestamp/1000).c_str(),tool_time::to_str(last_timestamp/1000).c_str());
        }
        else
		    snprintf(nsql,512,sql,tool_time::to_str(timestamp/1000).c_str(),avge_speed,m_objid,tool_time::to_str(m_timestamp/1000).c_str());
        if(flag==1) last_timestamp=timestamp;
        else last_timestamp=0;

		log_info("his_location[%d]:%s[%lu,%lu]",m_cardid,nsql,timestamp,m_timestamp);
		sDBConnPool.PushAsync(nsql);
	}
    std::vector<point> find_path(const point &p1,const point &p2)
    {
        std::vector<point> rc=card_path::inst().find_path(point(p1.x,-p1.y),point(p2.x,-p2.y));
        return std::move(rc);
    }
	//virtual bool  handle_message(const point &p,uint64_t timestamp)=0;
	bool  handle_message(const point &p,uint64_t timestamp)
    {
		bool flag = false;
        //int df=0;
		if(line_changed(p))//,df))
        {
            flag = true;
            std::vector<point> rc=find_path(m_d.back().p,p);
            if(rc.empty())
            {
			    log_info("his_location:line_changed rc.empty() %d",m_cardid);
			    update(m_d.back().p,m_d.back().time);
			    set(m_d.back().p,m_d.back().time);
            }
            else
            {
                if(handle_path(rc,timestamp,false))
                  return true;
            }
            //置m_arg非法
            set_invalid();
        }
        //if(df==1)flag=true;
        return flag;
    }
    bool handle_path(std::vector<point> &rc,uint64_t timestamp,bool flag)
    {
        double dis=0;point _p=m_p;
        std::for_each(rc.begin(),rc.end(),[&dis,&_p](point &pt){
                    pt.y=-pt.y;dis+=_p.dist(pt);_p=pt;
                    });
		uint64_t t=timestamp/1000 - m_timestamp/1000;
        if(t==0||dis<0.1)return true;
		double avge_speed= dis/t;

        for(const point & pp:rc)
        {
            if(flag){
			    m_arg=make_arg(pp,m_p);insert();
            }
		    log_info("his_location:line_changed_x %d point(%.2f,%.2f)--circle point(%.2f,%.2f),speed:%.2f",m_cardid,m_p.x,m_p.y,pp.x,pp.y,avge_speed);
            double dist=m_p.dist(pp);uint64_t tt=dist/avge_speed*1000;
            uint64_t etime=m_timestamp+tt;
			update(pp,etime);set(pp,etime);
            flag=true;
        }
        return false;
    }

};
#endif