<?php
/**********************************************************
	   Filename: sbltt_session.php
	Description: session related operations
		 Author: Jaffer
	 Created on: NOV, 09 2018
	Approved on: 
	Reviewed on: 
	------------------------------------------------------------
	Modification Details
	Changed by:
	------------------------------------------------------------
**********************************************************/
class sbltt_session {	

	private $dbObj = null;

	function __construct() {
		$this->dbConnection();
	}
	function __destruct() {
		unset($this->dbObj);
	}
	
	function dbConnection()	{
		$this->dbObj = sblttObject::newObject('sbltt_db');
		$this->dbObj->open_db();
	}
	
	function get_value($key){
		$value = "";
		if(isset($_SESSION[$key]))
			$value = $_SESSION[$key];
		return $value;
	}
	function set_value($key,$value) { 
		if(isset($_SESSION[$key]))
			$_SESSION[$key] = $value;
	}
	function add_value($key,$value){
		if(!isset($_SESSION[$key]))
			$_SESSION[$key] = $value;
	}	
	function startSession() {
		if(!isset($_SESSION['sbltt_web'])) {
			session_start();
			$_SESSION['sbltt_web'] = "v0.1";
			$this->add_value("session_id",$this->unique_code("SBLTT"));
			$this->add_value("cust_id",0);
		}
	}
	
	function is_session_exist(){
		$cust_id       = $this->get_value("cust_id");	
		$session_info  = $this->dbObj->query("customers","custid = '$cust_id'");
		$num_rows      = $this->dbObj->num_rows($session_info);
		//echo $num_rows; die;
		if((int)$num_rows === 1){
			$libObject = sblttObject::newObject('sbltt_customer');
			$libObject->get_cust_info("$cust_id");			
			return $libObject;
		}else{
			$libObject =  sblttObject::newObject("sbltt_db");
			return $libObject;
		}
	}
	
	function save_session($cust_id){
		if($this->sbltt_session_exist()) {
			$this->set_value('cust_id',$cust_id);
		}
	}	
	function sbltt_session_exist() {
		if(isset($_SESSION['sbltt_web'])) {
			if((isset($_SESSION["session_id"])) && (isset($_SESSION["cust_id"])))
				return true;
		}
		return false;
	}
	
	function unique_code($code="UN") {
		$YearMap = array('2018'=>'A','2019'=>'B','2020'=>'C','2021'=>'D','2022'=>'E','2023'=>'F','2024'=>'G','2025'=>'H','2026'=>'I','2027'=>'J','2028'=>'K','2029'=>'L');
		$MonthMap = array('1'=>'J','2'=>'K','3'=>'L','4'=>'M','5'=>'N','6'=>'O','7'=>'P','8'=>'Q','9'=>'R','10'=>'S','11'=>'T','12'=>'U');
		$DayMap = array('1'=>'A','2'=>'B','3'=>'C','4'=>'D','5'=>'E','6'=>'F','7'=>'G','8'=>'H','9'=>'I','10'=>'J','11'=>'K','12'=>'L','13'=>'M','14'=>'N','15'=>'O','16'=>'P','17'=>'Q','18'=>'R','19'=>'S','20'=>'T','21'=>'U','22'=>'V','23'=>'W','24'=>'X','25'=>'Y','26'=>'Z','27'=>'1','28'=>'2','29'=>'3','30'=>'4','31'=>'5');
		$HourMap = array('0'=>'A','1'=>'B','2'=>'C','3'=>'D','4'=>'E','5'=>'F','6'=>'G','7'=>'H','8'=>'I','9'=>'J','10'=>'K','11'=>'L','12'=>'M','13'=>'N','14'=>'O','15'=>'P','16'=>'Q','17'=>'R','18'=>'S','19'=>'T','20'=>'U','21'=>'V','22'=>'W','23'=>'X');
		
		$loctime = time();
		$unq4 = substr($loctime,-4,4);
		$unq2 = mt_rand(10,99);
		$xunq2 = mt_rand(10,99);
		$year  = $YearMap[ltrim(date('Y'), '0')];
		$month = $MonthMap[ltrim(date('n'), '0')];
		$day   = $DayMap[ltrim(date('j'), '0')];
		
		$hr = ltrim(date('H'), '0');
		if($hr == "")
			$hr = "0";
		$hour  = $HourMap[$hr];

		$uniqueCode = $code. $year . $month . $day . $hour. $unq4 . $unq2 . $xunq2;
		return $uniqueCode;
	}
	function logout_session() {
		if(isset($_SESSION['sbltt_web']))	{
			$session_id  = $this->get_value("session_id");
			$cust_id  = $this->get_value("cust_id");
			//$this->clear_session($cust_id);
			
			if(isset($_SESSION['session_id'])){
				unset($_SESSION['session_id']);
			}
			if(isset($_SESSION['cust_id'])){
				unset($_SESSION['cust_id']);
			}			
			if(isset($_SESSION['sbltt_web'])){
				unset($_SESSION['sbltt_web']);
			}			
			if(isset($_SESSION['discount'])){
				unset($_SESSION['discount']);
			}
			if(isset($_SESSION['package_id'])){
				unset($_SESSION['package_id']);
			}			
			if(isset($_SESSION['package_date'])){
				unset($_SESSION['package_date']);
			}
			if(isset($_SESSION['trip_id'])){
				unset($_SESSION['trip_id']);
			}
		}
	}
	
	//Set Customer
	function set_custid($order_id){
		$cust_info    = $this->dbObj->query("pnrnogen","orderid = '$order_id'");
		$cust_rslt    = $this->dbObj->result($cust_info);
		$cust_id      = $cust_rslt[0]->custid;
		$this->add_value("cust_id",$cust_id);
		$this->add_value("orderid",$order_id);
	}
	
}
?>