var express = require('express');
var router = express.Router();

// Mongoose import


let Vehicle = require('../models/vehicle');
var getDate= new Date().toISOString().replace(/T/, ' ').replace(/\..+/, '');


var prev = {lat: null, lon: null};
const { v4: uuidv4 } = require('uuid');

Date.prototype.toUnixTime = function() { return this.getTime()/1000|0 };
gps.on('data', function() {
    if (prev.lat !== null && prev.lon !== null) {
      gps.state.bearing = GPS.Heading(prev.lat, prev.lon, gps.state.lat, gps.state.lon);
    }
    prev.lat = gps.state.lat;
    prev.lon = gps.state.lon;
});

router.get('/gettrackbyid/:deviceid', function(req,res){
    
  Vehicle.aggregate([
    //{'$match':{'newTrack_id':'029febca-e05f-4f4e-b974-55b9ffd05b11'}},
    {'$match':{'device_id':req.params.deviceid}},
    {'$unwind':'$tracks'},
    {'$match':{'tracks.track_id':'029febca-e05f-4f4e-b974-55b9ffd05b11'}},
    {'$group':{'_id':'$vehicle_id','fasz':{'$first':'$name'},'trackx':{'$push':'$tracks'}}}
    ],
    function(err,track){
      if (err)
      {
        console.log("DB Error Track."+err);
        res.send({"DB ERROR: ":err});
      }
      else
      {
        let coords=[];
        if (track.length>0){
          track[0].trackx.forEach(trk=>{
            coords.push([trk.latitude,trk.longitude])
          })
          res.send({track:track,route:coords});
        }
        else
        {
          res.send({track:null});
        }
      }
    }
    
    )
})
// Leaflet kiszolgálás
router.get('/getdevicelist', function(req,res){
    Vehicle.find({},function(err,dev){
      if (err)
      {
        console.log("DB Error Vehiclelist."+err);
        res.send({"DB ERROR: ":err});
      }
      else
      {
        let vh=[];
        dev.forEach(element=>{
          vh.push({device_id:element.device_id,vehicle_id:element.vehicle_id,device_name:element.name})
        })
        res.send(vh);
      }      
    })

})

// Eszköz kiszolgálás
// Bejövő adatok rögzítése
function splitLines(t) { return t.split(/\r\n|\r|\n/); }
// Koordináták rögzítése deviceid alapján
router.post('/pushtelemetry', function (req,res)  {

  var response = {
    status  : 200,
    data : 'null'
  }
  // gps koordináták feldolgozása
   // var l=splitLines(req.body.nmea);
  //  l.forEach(nm => {
   //   gps.update(nm);   
  //});
  console.log(req.body.nmea)
  
 // if (gps.state.fix==="3D")
  {  
     /*
        track_id: String,
        timestamp: String,
        latitude: Number,
        longitude: Number,
        altitude: Number,
        speed: Number
        */
      let track={track_id:req.body.track_id,timestamp: getDate, latitude:gps.state.lat,longitude:gps.state.lon,altitude:gps.state.alt, speed:gps.state.speed };
      Vehicle.updateOne({device_id:req.body.device_id,newTrack_id:req.body.track_id},{$push:{tracks:track}},function(err,upd){
        if (err)
        {
          console.log("DB Err: "+err);
          res.send("DB_ERR");
        }else
        { 
          if (upd.nModified===0)
          {
            console.log('device not Found: '+req.body.track_id);
            res.send({err: 'device not Found'});
            
          }  
          else
          {
          console.log('Track logged.');
            res.send({result: 'ok'});
          }
        }
      })
    }
    /*else
    {
      res.send({result: 'gpslow'});
    }*/
  });

// Új útvonal
router.get('/newtrack/:deviceId',function(req,res){
  let trid=uuidv4();
  Vehicle.updateOne({device_id:req.params.deviceId},{$set:{newTrack_id:trid}},function(err,upd){
    if (err)
    {
      console.log("DB Err: "+err);
      res.send("DB_ERR");
    }else
    { 
      if (upd.nModified===0)
      {
        console.log('Device Not Found: '+trid);
        res.send({err: 'Not Found'});
        
      }  
      else
      {
      console.log('New Track: '+trid);
        res.send({newTrack_id: trid});
      }
    }
  })
})


// Modal kiszolgálás
router.post('/newdevice', function(req,res){
  req.checkBody('vehicle_name','Munkavállaló megnevezése kötelező!').notEmpty();
  req.checkBody('vehicle_id','Rendszám megadása kötelező!').notEmpty();
  req.checkBody('device_id','Eszköz azonosító megadása kötelező!').notEmpty();
  // Get errors
  let errors = req.validationErrors();
/*
    name: {type: String, require: true},
    vehicle_id: {type: String, require: true},
    device_id: {type: String, require: true},
    service: Number,
    timestamp : {type: String, require: true},
    newTrack_id: {type:mongoose.Schema.Types.ObjectId,default : null},
    geodataStart: {type: String, default: 'unknown'},
    geodataStop: {type: String, default: 'unknown'},
    tracks:[ {
        timestamp: String,
        latitude: Number,
        longitude: Number,
        altitude: Number,
        speed: Number
    } ]
  });
  */
  if(errors)
  {

        res.render('sidebar', {
          error:errors,
            "jmap" : {},
            lat : 47.5447583333333,
            lng : 21.6656666666667
        });
   
  /*  res.render('sidebar', {
      title: 'Új eszköz',
      
      error:errors,
     // user:req.user,
    })*/
  } else {
   let v=new Vehicle();
    v.timestamp=getDate;
    v.vehicle_id=req.body.vehicle_id;
    v.device_id=req.body.device_id;
    v.name=req.body.vehicle_name;
    v.service=req.body.vehicle_service;
    v.save(function(err){
      if (err)
      {
        console.log("Hiba az eszköz hozzáadásánál: "+err);
      }
      else
      {
        req.flash('success','Új eszköz felvéve');
        res.render('sidebar', {
          error:errors,
            "jmap" : {},
            lat : 47.5447583333333,
            lng : 21.6656666666667
        });
       // res.render('sidebar');
      }
    })
  }
  //Track tr={}
  // res.send(uuidv4());
   //res.send(docs);

})

module.exports = router;