server/his_location.cpp

#include "his_location.h"
#include "log.h"
#include "tool_time.h"
#include "card_path.h"
#include "db_api/CDBSingletonDefine.h"
#include <config_file.h>

extern config_file config;
uint32_t  location_card::m_difftime=0;
int  location_card::m_distance=-1;

location_card::location_card(uint32_t id,uint64_t type,uint32_t objid)
    :m_cardid(id)
    ,m_type(type)
    ,m_objid(objid)
{
    init();
    if(location_card::m_distance==-1)
    {
        location_card::m_difftime=config.get("service.difftime",300);
        location_card::m_distance=config.get("service.distance",30);
        log_info("his_location_init:%u,%d",m_difftime,m_distance);
    }
}

void location_card::init()
{
    m_areaid=-1;
    m_mapid=-1;
    m_siteid = -1;
    m_timestamp=0;
    m_p.set(0,0);
    std::queue<mini_data> tmp;
    m_d.swap(tmp);
    m_direct_index=0;
    last_timestamp=0;
    set_invalid();
}

void location_card::init_att(const point &pt,uint64_t time)
{
    std::queue<mini_data> tmp;
    m_d.swap(tmp);
    m_d.emplace(pt,time);
}

void location_card::set_invalid()
{
    m_arg=0x12345678;
}

bool location_card::is_valid()
{
    return m_arg!=0x12345678;
}

double location_card::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 location_card::set(const point &pt,uint64_t time)
{
    m_timestamp=time;
    m_p.set(pt);
    init_att(pt,time);
}

bool location_card::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 dis = m_p.dist(pt);
    double arg = make_arg(pt,m_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);
    
	return !change_flag;
}

bool location_card::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 location_card::time_out(const point &p,uint64_t time)
{
    uint64_t t=last_timestamp==0?m_timestamp:last_timestamp;
    if(time-t>=30*1000 && m_p.dist(p)>0.1)
        return true;
    return false;
}

//区域是否发生变化
bool location_card::is_area_changed(int new_areaid)
{
    bool flag =false;
    if(m_areaid != new_areaid)
    {
        m_areaid = new_areaid;
        flag=true;
    }
    return flag;
}

//地图是否发生变化
bool location_card::is_map_changed(int new_mapid)
{
    bool flag =false;
    if(m_mapid != new_mapid)
    {
        m_mapid = new_mapid;
        flag=true;
    }
    return flag;
}

void location_card::push(uint64_t timestamp,const point & p,int32_t areaid,int32_t mapid,int32_t siteid,bool bclose/* = false*/)
{
    //log_info("his_location: 1111111111111111111; timestamp=%d, p.x=%.2f, p.y=%.2f", timestamp, p.x, p.y);
    if (bclose) //卡移除后直接更新his_location
    {
        update(p,timestamp);
        init();
        return;
    }
    //log_info("his_location: m_p.empty()=%d, m_timestamp=%d, m_areaid=%d, m_mapid=%d, m_siteid=%d", m_p.empty(), m_timestamp, m_areaid, m_mapid, m_siteid);
    if(m_p.empty() || m_timestamp==0||m_areaid<0||m_mapid<0 || m_siteid < 0)
    {
        set(p,timestamp);
        m_areaid = areaid;
        m_mapid  = mapid;
        m_siteid = siteid;
        m_d.emplace(p,timestamp);
        return ;
    }
    
	if(!is_valid())
    {
        if(point::eq(p.x,m_p.x,0.2) && point::eq(p.y,m_p.y,0.2))
        {
            set(p,timestamp);
            log_info("his_location:%d New Point Too close.Point[%.2f,%.2f]",m_cardid,p.x,p.y);
            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){
            m_siteid = siteid;
            set(p,timestamp);
            insert();
        }
    }
}

void location_card::insert(uint64_t timestamp, const point & p, int32_t areaid, int32_t mapid, int32_t siteid, double scale)
{
    double speed = 0.0;
    double dist = 0.0;
    if(m_timestamp != 0){
        dist = m_p.dist(p)*scale;
        
        if(fabs(dist) < 1){
            return;
        }
   
        double t	= (timestamp - m_timestamp)/1000;
        speed       = dist/t;
        if(std::isnan(speed)|| std::isinf(speed))
            speed=0;
    }

    m_timestamp = timestamp;
    m_p = p;

    char sql[512] = {0};
    snprintf(sql, 512, "replace into his_location_simplify(obj_id, card_type_id, ident, loc_time, map_id, area_id, begin_pt, reader_id, speed) values (%d, %d, %d, '%s', %d, %d, '%.2f,%.2f', %d, %.2f);", m_objid, m_type, m_cardid, tool_time::to_str(timestamp/1000).c_str(), mapid, areaid, p.x, p.y, siteid, speed);
    logn_info(2, "his_location_simplify: %d-%lu: %s", m_cardid, timestamp, sql);
    sDBConnPool.PushAsync(sql);
}

void location_card::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,reader_id)"
                       "values(%d,%d,%d,'%s',%d,%d,'%.2f,%.2f',%f,%d);";
    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,m_siteid);
    logn_info(2, "his_location[%d,%lu]:%s", m_cardid, m_timestamp, nsql);
    sDBConnPool.PushAsync(nsql);
}

void location_card::update(const point &p,uint64_t timestamp,int flag/*=0*/,int dflag/*=0*/)
{
    //std::string tabName=getTabName();
	if(timestamp <= 0){
		return;
	}

    char nsql[512]={0};
    const char * sql = "update his_location set last_time='%s',speed=%.3f,direction=%f,location_flag=%d 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;

    logn_info(2, "his_location_time[%d]:%d[%lu,%lu,%lu]", m_cardid, flag, last_timestamp, timestamp, m_timestamp);
    if(last_timestamp != 0)
    {
        const char * ss = "update his_location set last_time='%s',speed=%.3f,direction=%f,location_flag=%d 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_arg,dflag,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_arg,dflag,m_objid,tool_time::to_str(m_timestamp/1000).c_str());
    if(flag==1) last_timestamp=timestamp;
    else last_timestamp=0;

    logn_info(2, "his_location[%d]:%s[%lu,%lu]", m_cardid, nsql, timestamp, m_timestamp);
    sDBConnPool.PushAsync(nsql);
}

std::vector<point> location_card::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);
}

bool  location_card::handle_message(const point &p,uint64_t timestamp)
{
    bool flag = false;

    if(line_changed(p))
    {
        flag = true;

        std::vector<point> rc=find_path(m_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();
    }else{
        log_info("his_location: line not change");
    }

    return flag;
}

bool location_card::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){
        log_info("his_location: card_id=%d, t=%d, dist=%.2f, rc.size=%d", m_cardid, t, dis, rc.size());
        return true;
    }
    double avge_speed= dis/t;
    //有拐点  盲区时间差 距离
    uint64_t difftime = t;
    int dflag = 0;
    if(!m_d.empty()) 
        difftime = timestamp/1000-(m_d.back().time)/1000;
    if(difftime >= location_card::m_difftime && dis>location_card::m_distance)
    {
        log_info("his_location[%d]:abnormal_line difftime:%lu,ltime:%u,dis:%.2f,limit_dis:%d",m_cardid,difftime,location_card::m_difftime,dis,location_card::m_distance);
        dflag=1;
    }
    for(const point & pp:rc)
    {
        m_arg=make_arg(pp,m_p);
        if(flag)insert();

        log_info("his_location[%d]:line_changed_x 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,0,dflag);
        set(pp,etime);
        flag=true;
    }
    return false;
}