<?php 

/* 

VS SCORM 1.2 RTE - finish.php
Rev 2010-04-30-01
Copyright (C) 2009, Addison Robson LLC

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, 
Boston, MA 02110-1301, USA.

*/
//  read database login information and connect
require_once "../config.php";
session_name($CFG->sessionname);
session_start();
//  essential functions
require_once "subs.php";


dbConnect();

// read form variables
$SCOInstanceID =   $_POST['SCOInstanceID'];
$computeTime = $_POST['computeTime'];
//$SCOInstanceID =   str_replace (' ','+', $SCOInstanceID );
//$SCOInstanceID =  $desencriptar( $SCOInstanceID );
$data = json_decode ($_POST['data'],true);

if (! is_array($data)) { $data = array($data); }

// iterate through the data elements
foreach ($data as $varname => $varvalue) {

	// save data to the 'scormvars' table
	writeElement($varname,$varvalue);

	// special cases - set appropriate values in the LMS tables when they are set by the course
	if ($varname == "cmi.core.score.raw") { setInLMS('TestScore',$varvalue); }
	if ($varname == "cmi.core.lesson_status") { setInLMS('Finished',$varvalue); }

}


// ------------------------------------------------------------------------------------
// set cmi.core.lesson_status

// find existing value of cmi.core.lesson_status
$lessonstatus = readElement('cmi.core.lesson_status');

// if it's 'not attempted', change it to 'completed'
if ($lessonstatus == 'not attempted') {
	writeElement('cmi.core.lesson_status','completed');
}

// has a mastery score been specified in the IMS manifest file?
$masteryscore = readElement('adlcp:masteryscore');
$masteryscore *= 1;
if ($masteryscore) {
	// yes - so read the score
	$rawscore = readElement('cmi.core.score.raw');
	$rawscore *= 1;
	// set cmi.core.lesson_status to passed/failed
	if ($rawscore >= $masteryscore) {
		writeElement('cmi.core.lesson_status','passed');
	}
	else {
		writeElement('cmi.core.lesson_status','failed');
	}
}

// ------------------------------------------------------------------------------------
// set cmi.core.entry based on the value of cmi.core.exit

// clear existing value
writeElement('cmi.core.entry','');

// new entry value depends on exit value
$exit = readElement('cmi.core.exit');
if ($exit == 'suspend') {
	writeElement('cmi.core.entry','resume');
}
else {
	writeElement('cmi.core.entry','');
}

// ------------------------------------------------------------------------------------
// process changes to cmi.core.total_time

// read cmi.core.total_time from the 'scormvars' table
$totaltime = readElement('cmi.core.total_time');

// convert total time to seconds
$time = explode(':',$totaltime);
$totalseconds = $time[0]*60*60 + $time[1]*60 + $time[2];

// read the last-set cmi.core.session_time from the 'scormvars' table
$sessiontime = readElement('cmi.core.session_time');

// no session time set by SCO - set to zero
if (!$sessiontime) {
	$sessiontime = $computeTime; // siempre se detecta el tiempo
}

// convert session time to seconds
$time = explode(':',$sessiontime);

$sessionseconds = $time[0]*60*60 + $time[1]*60 + $time[2];

// new total time is ...
$totalseconds += $sessionseconds;

// break total time into hours, minutes and seconds
$totalhours = intval($totalseconds / 3600);
$totalseconds -= $totalhours * 3600;
$totalminutes = intval($totalseconds / 60);
$totalseconds -= $totalminutes * 60;

// reformat to comply with the SCORM data model
$totaltime = sprintf("%04d:%02d:%02d",$totalhours,$totalminutes,$totalseconds);

// save new total time to the 'scormvars' table
writeElement('cmi.core.total_time',$totaltime);

// delete the last session time
writeElement('cmi.core.session_time','');
// ------------------------------------------------------------------------------------
mysqli_close($link);
// return value to the calling program
print "true";
?>