flaglib/lib/vehicle.js

Ignition event 15 added.

var util = require('util');

var Util = require('./util.js');
var logger = require('./logger');
var Flag = require('./flag.js');
var FlagConstants = require('./flagconstants.js');
var FlagCategories = require('./flagcategories.js');

module.exports = Vehicle;

var SERIAL_NUMBER = "1";
var SPEED_CUTOFF = "2";
var CUTOFF_CROSSED = "3";
var SPEED_CUTOFF_ALERTED = "4";
var SPEED_CUTOFF_CROSSED_COUNT = "5";
var RFID = "6"
var VID = "7"
var DISTANCE = "8";
var IGNITION_STATUS = "9";
var utility = new Util();


/*
 * Rules:
 * If the vehicle is continuously crosses the speed for 1 min, mean 6 updates
 * then consider this as cutoff crossed.
 * Ones update, don't update for next 30 min. 
 */

function Vehicle(vid, sno,scutoff,rfid) {
	this.vid = vid;
	this.sno = sno; 
	this.scutoff = scutoff;
	this.cutoffCrossed = false;
	this.invalid = false;
	this.cutoff_alerted = false;
	this.cutoffCrossed_count = 0;
	this.distance = 0;
	this.ignition_status = 0; // 0 = IGNITION_OFF, 1 = IGNITION_OFF
	
	this.rfid = rfid; 
}

Vehicle.prototype.getIgnitionStatus = function(){

	return this.ignition_status;
}

Vehicle.prototype.setIgnitionStatus = function(status){

	this.ignition_status = status;
}


Vehicle.prototype.isSpeedCutoffCrossed = function(flagData){
	var flag  = new Flag(flagData);
	
	if( flag.getFlagValue(FlagConstants.FLAG_CATEGORY) != FlagCategories.CTG_FLAG_RFID_SWIPE ){
		this.distance = flag.getFlagValue(FlagConstants.FLAG_TRACK_DISTANCE);
	}
	if (this.cutoff_alerted){
		if ( this.scutoff > flag.getFlagValue(FlagConstants.FLAG_SPEED) ){
			this.cutoff_alerted = false;
			this.cutoffCrossed = false;
			this.cutoffCrossed_count = 0;
		}
		return null;
	}
	
	if ( (this.scutoff < flag.getFlagValue(FlagConstants.FLAG_SPEED)) ){
		if ( (!this.cutoff_alerted) && (this.cutoffCrossed_count >= 5) ){
			var data = {userMobile:flag.getFlagValue(FlagConstants.FLAG_SENDER),cutoff:this.scutoff, speed:flag.getFlagValue(FlagConstants.FLAG_SPEED)};
			this.cutoff_alerted = true;
			this.cutoffCrossed = true;
			this.cutoffCrossed_count = 0;
			return data;
		}else{
			this.cutoffCrossed_count++;
			return null;
		}
	}else{
		this.cutoff_alerted = false;
		this.cutoffCrossed = false;
		this.cutoffCrossed_count = 0;
	}
	
	return null;
}

Vehicle.prototype.checkRFIDSwipe = function(flagData, callback){
	
	
	
	var flag  = new Flag(flagData);
	var rfid = null;
	//check if the flag category is swipe or track
	if( flag.getFlagValue(FlagConstants.FLAG_CATEGORY) == FlagCategories.CTG_FLAG_RFID_SWIPE ){
		
		rfid = flag.getFlagValue(FlagConstants.FLAG_RFID_ID);
	
	}
	
	if((rfid) && (rfid == this.rfid) && (callback) ){
		var date = flag.getFlagValue(FlagConstants.FLAG_DATE);
		var dist = this.distance;
		callback(this.vid, date, dist,flag.getFlagValue(FlagConstants.FLAG_LATITUDE),flag.getFlagValue(FlagConstants.FLAG_LONGITUDE));
	}
}

Vehicle.prototype.isInValid = function(){
	return this.invalid;
}

Vehicle.prototype.injectData = function(sno,scutoff){
	this.sno = sno; 
	this.scutoff = scutoff;
	this.invalid = false;

}


/*
 * Parse JSON obejct and create objects
 */

Vehicle.prototype.fromJSON = function(data){
	
	if (data == null){
		this.invalid = true;
		return;
	}
	
	var flagJson = null;
	
	flagJson = JSON.parse(utility.hex2a(data));
	
	this.sno = flagJson[SERIAL_NUMBER];
	this.scutoff = flagJson[SPEED_CUTOFF];
	this.cutoff_alerted = flagJson[SPEED_CUTOFF_ALERTED];
	this.cutoffCrossed = flagJson[CUTOFF_CROSSED];
	this.cutoffCrossed_count = flagJson[SPEED_CUTOFF_CROSSED_COUNT];
	this.rfid = flagJson[RFID];
	this.vid = flagJson[VID];
	this.distance = flagJson[DISTANCE];
	this.ignition_status = flagJson[IGNITION_STATUS];
	
}


/*
 * Parse it to JSON to store
 */
Vehicle.prototype.toJSON = function(){
		
	var mainObj = {};
	
	mainObj[SERIAL_NUMBER] = this.sno;
	mainObj[SPEED_CUTOFF] = this.scutoff;
	mainObj[SPEED_CUTOFF_ALERTED] = this.cutoff_alerted;
	mainObj[CUTOFF_CROSSED] = this.cutoffCrossed;
	mainObj[SPEED_CUTOFF_CROSSED_COUNT] = this.cutoffCrossed_count;
	mainObj[RFID] = this.rfid;
	mainObj[VID] = this.vid;
	mainObj[DISTANCE] = this.distance;
	mainObj[IGNITION_STATUS] = this.ignition_status;
	return utility.convertFromAscii2Hexa(JSON.stringify(mainObj));
	
}