<?php

class Calculator {
    var $cid;
    var $question;
    var $period;

    function __construct($cid) {
        $this->cid = $cid;
        global $kdb;
        $this->period = $kdb->getPeriodByCalculationId($cid);
    }

    function finalize() {

    }

    function __destruct() {
        
    }
    
    public function getCalcId() {
        return $this->cid;
    }
    
    public function getQuestion() {
        return $this->question;
    }
    
    public function setQuestion($qd) {
        $this->question = $qd;
    } 
    
    public function getPeriod() {
        return $this->period;
    }
}
if ( isset($_SESSION['cid']) ) {
    $calculator = new Calculator($_SESSION['cid']);
    $kesa->setPage($calculator);
}

// if user NOT created
if ( !isset($_SESSION['userid']) ) {
    // first question
    if (!isset($_SESSION['pre_started'])) {
        require_once("pre_starter.php");
        $kesa->setTemplate("pre_start_calc.html");
    } else {
        require_once("starter.php");
        $kesa->setTemplate("start_calc.html");
    }
// if user IS created
} else {
    if (isset($_SESSION['period_need_to_set'])) {
        require_once("period_calc.php");
        $kesa->setTemplate("period_calc.html");
    } else {
    if ( !isset($_SESSION['qid']) ) {
        $_SESSION['qid'] = 2;
    }
    if ( isset($_GET['reset']) ) {
        global $kdb;
        $kdb->query("DELETE FROM users WHERE id=".$_SESSION['userid']." AND !registred");
        session_destroy();
        header("Location:index.php");
    // question stuff
    } else if ( isset($_GET['login']) ) {
        $_SESSION['page'] = 'login';
    } else if ( isset($_GET['register']) ) {
        if ($_SESSION['page']!='register') {
            $_SESSION['last_page'] = $_SESSION['page'];
        }
        $_SESSION['page'] = 'register';
        header("Location:index.php");
    } else if ( is_numeric($_SESSION['qid']) && $_SESSION['qid']>1 && isset($_SESSION['cid']) ) {
        require_once("question.php");
    // other stuff
    } else if (!isset($_SESSION['cid'])){
        if (!$kdb->getFootprintsByUserId($_SESSION['userid'])) {
            $kdb->query("INSERT INTO answers (userid) values (".$_SESSION['userid'].")");
            $cid = mysql_insert_id();
            $_SESSION['cid'] = $cid;   
        }
        require_once("starter.php");
        $kesa->setTemplate("continue_calc.html");    
    } else {
        header("Location:index.php"); 
    }
    }
}
?>